Belt transmission system

FIELD: transport.

SUBSTANCE: self-aligning system of pulley and drive belt comprises drive belt, pulley, frame and aligning flange. Belt comprises multiple ledges, each having aligning groove separating the ledge in first and second segments. Pulley can engage with the belt inner surface. Aforesaid frame outer round ring and can revolve. This system comprises multiple ring teeth extending radially and axially from said ring. Said teeth are located between adjacent ledges of the belt. Aligning flange extends radially between adjacent ring teeth and can be fitted in aligning groove and extends radially not further from rotational axis than ring teeth.

EFFECT: ruled out fouling of pulleys.

35 cl, 9 dwg

 

The technical FIELD

System belt transmission and, in particular, the system belt transmission for bicycles/motorcycles.

The LEVEL of TECHNOLOGY

The vast majority of vehicles, including motorcycles and bicycles, manufactured, sold and used around the world, uses a suspension with a conventional circuit that provides power between the first pulley, functionally connected to the drive shaft and the second pulley, functionally connected to the rear wheel hub. In applications in rental first pulley is functionally connected to the crank system. These circuits are relatively efficient in transferring power between the first and second pulleys, but they have several disadvantages. Disadvantages include, but are not limited to, the need for periodic lubrication, the fact that when you wear chains become less effective in the transmission of power, the dirt can get stuck between the chain links, reducing efficiency, pulling chains with long-term use and need periodic replacement, and additionally can wear down the teeth of the first or second pulleys, also requiring their replacement, and the circuit can be noisy.

One known alternative systems of chassis-based circuit is a drive system with belt transmission. System belt PE is EDAC eliminate some of the problems above, but not without their own problems. For example, belt drives usually require relatively precise alignment between the first and second pulleys system belt transmission. Ensuring such alignment can be difficult, especially in the rental, where the crank system and bushings of different manufacturers can be mixed and matched in the Assembly of the bike, resulting in less accurate alignment. Additionally, incidents can happen during use of the Bicycle, resulting in poor alignment. The loss of a precise alignment of the belts of the known systems of belt drives can be moved relative to the pulley and to jump from a pulley. This problem is particularly acute, as the belts and pulleys are relatively narrow relative to the length of the belt. One known way to solve this displacement is to provide one or more radially protruding side flanges around the circumference of the pulley to prevent displacement of the belt from the pulley. However, such side flanges, particularly where provided with two lateral flange complicate the manufacture of the pulley, increase the weight, do the pulley is wider and increase the cost of the pulleys. An additional problem with known systems, belt drives is the accumulation of dirt between the teeth of the pulleys that can prepjatstvovanie transmission and in extreme cases, to cause slipping of the belt from the pulley. Each of these deficiencies is significant for bicycles/motorbikes, and especially applications of the rental.

Different ways of implementation, described herein, are intended to address one or more of the problems discussed above.

BRIEF description of the INVENTION

The first aspect is samovyravnivayuschihsya the belt system, which comprises a drive belt, with many located at a distance from each other in the longitudinal direction of the inner protrusions, each of which has an alignment groove. The system further comprises at least one pulley, containing frame is designed in such a way as to rotate around the axis of rotation and having a circular outer rim. Many district teeth takes place in radial and axial direction from the rim, each tooth is made with the possibility of placement between adjacent inner lugs of the drive belt. The alignment flange is held radially between the circumferential teeth. The alignment flange is made with the possibility of accommodation in the alignment groove, and the alignment flange passes radially no further from the axis of rotation than the circumferential teeth. Circumferential teeth, the alignment flange and the alignment groove is made the same, the way what with the alignment flange is placed in the alignment groove, the belt moves around the ring teeth.

Another aspect is a system of pulleys and a drive belt for a Bicycle containing the drive belt with many located at a distance from each other in the longitudinal direction of the inner protrusions, each of which has an alignment groove. The first pulley is arranged to interlock with the inner surface of the belt and contains a frame, which is intended for connection with the crank of a Bicycle for rotation around the axis of rotation. The frame additionally includes a circular outer rim, with many district teeth, held in radial and axial direction from the rim. The teeth are held in the axial direction of the width of the tooth at least equal to the width of the belt. Each tooth is made with possibility of accommodation between adjacent inner lugs of the drive belt. The second pulley is arranged to interlock with the inner surface of the belt and contains a frame, which is intended for connection with the hub of a bike wheel for rotation about an axis of rotation. The frame has a circular outer rim with plenty district teeth, held in radial and axial direction from the rim. The teeth are held in the axial direction of the width of the tooth, m is Nisha least as large as the width of the belt, with each tooth is made with the possibility of placement between adjacent inner lugs of the drive belt. At least one of the first and second pulleys contains the alignment flange passing between adjacent circumferential teeth, with the alignment flange is made with the possibility of accommodation in the alignment groove.

One another aspect is a bike that contains a system of pulleys and drive belt according to the preceding paragraph.

An additional aspect is the pulley for use with a drive belt and drive belt includes a plurality of longitudinal, spaced apart inner protrusions, each of which has an alignment groove dividing the lug into first and second segments of the ledge. The pulley includes a frame, is designed to rotate around the axis of rotation, while the frame has a circular outer rim with opposing sides. Many district teeth takes place in radial and axial direction from the rim, each tooth has a width of tooth at least equal to the width of the belt. Each tooth is made with possibility of accommodation between adjacent inner lugs of the drive belt. The alignment flange is held between adjacent circumferential teeth, the item is and this levelling flange made with the possibility of accommodation in the alignment groove. The alignment flange passes radially no further than the circumferential teeth, the axis of rotation.

One another aspect is a kit for bike, containing at least two of the drive belt, the first pulley and the second pulley. The belt contains many located at a distance from each other in the longitudinal direction of the inner protrusions, each of which has an alignment groove dividing the lug into first and second segments of the ledge. The alignment groove has a depth of the alignment grooves. The first and second pulleys, each made with the possibility of coupling with the surface of the belt, and at least one of the first and second pulleys includes a frame, is designed to rotate around the axis of rotation. The frame has a circular outer rim. Many district teeth takes place in radial and axial direction from the rim, each tooth has a width of the tooth parallel to the axis of rotation, and each tooth is made with possibility of accommodation between adjacent protrusions of the belt. The alignment flange passes radially between adjacent circumferential teeth. The alignment flange is made with the possibility of accommodation in the alignment groove, and the alignment flange passes radially no further than the circumferential teeth, the axis of rotation. Circumferential teeth, lining : polyester taffeta is Mering flange and the alignment groove is designed in such a way what with the alignment flange is placed in the alignment groove, the belt moves around the ring teeth.

An additional aspect is the use of a belt for Bicycle drive system for a Bicycle, with the drive system performed as described in any of the preceding paragraphs. The belt contains many located at a distance from each other in the longitudinal direction of the inner protrusions passing through the width of the belt and each protrusion has an alignment groove dividing the lug into first and second segments of the ledge, with the alignment groove has a width which is less than 1/3 the width of the belt. In one embodiment, the strap has a width of about 11 mm, and the alignment groove has a width of about 1-2 mm

Still another aspect is the use of a pulley for Bicycle drive system for a Bicycle as described in any of the preceding paragraphs, the pulley includes a frame, is designed to rotate around the axis of rotation, while the frame has a circular outer rim with opposing sides. The pulley further includes plenty district teeth, placed at equal distances from each other with a step pulley, passing in the radial and axial direction from the rim, each tooth has a width the well, parallel relative to the axis of rotation, and the width at least equal to the width of the belt, and each tooth is made with the possibility of placement between adjacent inner lugs of the drive belt. The alignment flange is held between adjacent circumferential teeth, with the alignment flange is made with the possibility of accommodation in the alignment groove belt, the alignment flange passes radially no further than the circumferential teeth, the axis of rotation. The pulley for use with a drive belt may further comprise alignment flange having a width that essentially is constant as it passes radially to the rounded distal end. The pulley may further comprise alignment flange having a width which is less than 1/3 the width of the teeth.

BRIEF DESCRIPTION of DRAWINGS

Figure 1 - schematic view in plan of the vehicle, in particular a Bicycle, comprising a system of pulleys and drive belt;

figure 2 is a perspective view of the second pulley with figure 1;

figure 3 is a view in section of a second pulley on the line 3-3 with 2;

4 is a perspective view in section of figure 3;

5 is a perspective view of the first and second pulleys with figure 1, coupled with a drive belt;

6 is a side view of a system of pulleys and a drive belt 5;

Fig.7 is a view in section of the second pulley 6, ot the th line 7-7 with 6;

Fig - view in section of a segment of a pulley showing the axial displacement; and

Fig.9 is a view in section of the coupling protrusion of the belt-tooth pulley.

DETAILED description of the INVENTION

Unless otherwise indicated, all numbers expressing the numerical values of the number of items, sizes, reaction conditions and so forth used in the specification and the claims, should be considered as changing all of the examples, the term "about".

In the present application and claims the use of the singular includes the plural unless specifically stated otherwise. Additionally, the use of "or" means "and/or"unless stated otherwise. In addition, the use of the term "comprising", as well as other forms, such as "includes" and "included"is non-limiting. Also terms such as "element" or "component part"cover both elements and components containing one node, and the elements and components that contain more than one node, unless specifically stated otherwise.

The belt system disclosed here can be used for multiple devices using a belt transmission, including, but not limited to, vehicles such as motorcycles and bicycles. Due to the specific advantages of a belt for use is for bikes, the belt system is shown in use with a Bicycle. This particular implementation is assumed to be non-limiting, if not exactly limited to the scope of the attached claims.

The Bicycle 10 with the system 12 of the belt, schematically shown figure 1. The Bicycle 10 includes a frame 14 with the rear wheel 16 with the sleeve 18 attached to the frame through the rear dropout (not shown). The Bicycle 10 includes a crank system 20. 12 system belt transmission comprises a first pulley 22, which is functionally connected with the crank system 20, for rotation around a common axis of rotation with the crank system 20. The second pulley 24 is functionally connected with the sleeve 18 of the rear wheel for rotation around a common axis of rotation. Synchronous drive belt 26 passes between the first pulley 22 and the second pulley 24. As shown in figure 1, the first pulley 22 can have a diameter greater than that of the second pulley. In other embodiments, implementation of the pulleys can be the same size, or the second pulley may have a diameter greater than the first pulley. In addition, one or more additional coaxial pulleys may be provided next to the first or second pulley to provide a variable gear ratios. Such an implementation option can optionally include uradni or rear derailleur to allow switching between adjacent pulleys. Or a gear may be provided with teeth, the rear bushing of the type known in the art.

Figure 2 is a perspective view of the second pulley 24, removed from the sleeve 18 and the system 12 of a belt. The second pulley 24 includes a frame 28, which is intended for connection with the sleeve 18 of the rear wheel 16, and includes a circular outer rim 30 with the opposite sides 32, 34, the connecting ring 36 to sleeve and plenty of spokes 37, passing between the connecting ring 36 to sleeve and round the outer rim 30. The second pulley 24 further comprises multiple district teeth 38. As shown, circumferential teeth are equally spaced from each other with a pitch PP of the pulley and held in radial and axial direction from the rim. In other embodiments, implementation of the teeth can have a variable spacing to mate with a drive belt having spaced at different distances from each other protrusions.

Each tooth additionally has a width W parallel to the axis of rotation. The width W at least equal to the width of the belt 26, although in some embodiments, the implementation of it can be equal to, greater than or less than the width of the belt. For the width of the tooth and the width of the belt should preferably be essentially equal to the increase to the maximum amount of force transferred between R the crumple and teeth, while minimizing the corresponding width of the belt and teeth. Each tooth 38 is made with possibility of accommodation in the space between the neighboring inner protrusions 42 of the belt 26, as shown in figure 5 and 6. In some embodiments, the implementation, as shown in figure 5 and 6, the teeth essentially fill the space between adjacent protrusions. This feature can be useful for minimizing slippage between the belt and pulley, if the direction of rotation of the pulley is reversed. These internal projections are in increments of BP belt. The second pulley 24 includes an alignment flange 44 passing between adjacent circumferential teeth. The alignment flange 44 is made with the possibility of accommodation in the alignment groove 46 of the belt 26, which divides each of the ridges on the first and second segments of the ledge (see figure 5-7). As shown in Fig.7, the alignment groove 46 may have parallel side walls. In other embodiments, implementation of the side walls can be narrowed to facilitate placement of the alignment flange 44 in them. Moreover, the alignment flange 44 may taper to facilitate mating with the centering groove. Regardless, tapers or not, the alignment flange 44 may optionally include a distal end that is rounded or otherwise is ispolnennym to facilitate such coupling. In the shown embodiment, and as seen in Fig.7, the alignment groove 46 separates the tabs 42 to equal the first and second segments of the ledge. However, the first and second segments of the protrusion can have different widths in other embodiments, implementation. In the shown embodiment, each tooth of the second pulley 24 is held in the longitudinal direction at equal distance from each side of the rim. In the variants of implementation, where the first and second segments of the tabs are of different widths, the teeth, in a General sense, would have a corresponding different widths. In the shown embodiment, each tooth of the second pulley 24 passes for radially aligning flange 44 from the axis of rotation (see Fig.6), although in other embodiments, implementation, they may be held to the same distance or alignment flange 44 can pass on. In some embodiments, the implementation of the circumferential teeth, the alignment flange and the alignment groove is designed so that with the alignment flange is placed in the alignment groove, the belt moves around the ring teeth. Alternatively, the circumferential teeth, the alignment flange and the alignment groove may be designed to move through the alignment flange.

Figure 9 shows an implementation option, in which the alignment flange is parallel the recreational side walls and a rounded distal end. In this embodiment, the pulley has a width H of about 11 mm, and the teeth have a width of about 11 mm In most embodiments the width of the teeth at least equal to the width of the belt. Figure 9 alignment groove has a width of about I to 1.5 mm, and the alignment flange has a width of about 1.0 J mm In a General sense the width of the alignment groove is slightly greater than the width of the alignment flange, to allow for some clearance in the clutch, but should not be too large to allow the belt to shift to an undesirable size along the width of the teeth. In General, the width of the alignment groove is reduced to a minimum to increase to maximum values of the surface belt available for coupling with the teeth, and increase up to a maximum surface for force transmission between them. To minimize the width of the alignment grooves also minimizes the likelihood of dirt in the alignment groove. Assuming that the width of the belt is about 11 mm, in some embodiments, the implementation of the width of the alignment grooves may be about 1-3 mm, in other embodiments, the implementation is about 1-2 mm and in other embodiments, the implementation is about 1-1,5 mm Levelling flange normally would have a width of about 0.5 mm less than that of the alignment grooves.

In some embodiments, the implementation of the ratio of the width stabilize ivalsa grooves to the width of the belt may be 1:3. In other embodiments, the implementation of it can be 1:4. In still other embodiments, the implementation of it can be 1:8, 1:10 or even less. The ratio of the width of the alignment flange to the width of the teeth may also be 1:3, 1:4, 1:10 or even less.

As can be seen in Fig.9, the alignment flange is designed in such a way that it does not pass to the bottom of the alignment grooves. In the embodiment, Fig.9 between the distal end of the flange and the bottom of the alignment grooves has a length about 0.75 mm. This configuration is useful when the drive system belt and pulley used in the environment where it can be dirt, for example when riding a mountain bike. This space provides some accumulation of dirt without filling the alignment grooves and possibly pull the belt from the pulley. In other applications, where the accumulation of dirt is a little exciting, the alignment flange can be designed in such a way as to extend the full depth of the alignment grooves. In most embodiments it is desirable that the alignment flange was not so in the alignment groove, the belt moves along the alignment flange with the exception of the surfaces of the teeth of the pulley.

As shown in Fig, axial displacement 48 at a selected distance (e.g., 2 mm) is provided between which the connecting ring 36 and the rim 30. In one embodiment, the offset 48 is provided between the connecting ring 36 and a multitude of spokes 37 by means of the ledge, as shown in Fig. Alternatively, the offset may be provided with an angular displacement, or in some other way. The purpose of this offset is that when attaching the connecting ring to the sleeve, the position of the rim along the axis of rotation may vary depending on which of the opposite sides of the rim is a front accession.

The first pulley 22 has an identical configuration round the outer rim 30, the teeth 38 and the alignment flange 44, although he may have, as shown in Fig.6, a different diameter, and optionally may include a different configuration of the frame. As shown in figure 5 and 6, the frame 50 of the first pulley 22 is composed of a number of radially spaced, passing inside the brackets 52, which further comprise means for functional connection with the crank system. These brackets can be similarly offset axial offset 48, shown in Fig, about the second pulley 24. Holes 54 provide connection to the crank system 20.

In some embodiments, the implementation of the drive system as disclosed here, only the first pulley 22 or the second pulley 24 may include the alignment flange. Also m which may be desirable in some embodiments of the exercise is not to have the alignment flange held between the neighboring teeth. In some embodiments, implementation of the alignment flange may simply be a radial extension of the rim opposite the flange acting radially from the rim. In some embodiments, the implementation of only one pulley can be used with a drive belt.

When used in a specific application of the bike protrusions 46 synchronous drive belt 26 is placed in the space between adjacent teeth of each of the first and second pulleys 22, 24, whereby the rear wheel can be driven by application of force to the crank system. The alignment is maintained on the first and second pulleys 22, 24 through the alignment flange 44, the mating with the alignment groove 46 of the belt. Thus, the lateral flanges required in a traditional belt pulleys, used on bicycles, can be excluded. This has the advantage of reducing the width of the pulleys, which is important in a small space available in the Assembly of the bike. The exception of the side flanges further reduces the mass of the pulleys is another important factor in the design of the bike. The leveling feature allows relative axial displacement between the first and second pulleys, which are common in bike where the frame can be made as per the exact requirements and where the damage is Denia can take place on the frame or the pulleys, what else would cause the output of the pulleys out of alignment. Moreover, the manufacturers of bicycles can choose to use crank system and the sets of wheels from different manufacturers, and the corresponding dimensions may vary, which may cause some discrepancy between the pulleys. This potential difference can be compensated by providing axial displacement in the first and second pulleys, as described above, and additionally due to the interaction of the alignment grooves and alignment of the flanges. These advantages can be used in other applications, such as motorcycles or other devices that use system belt transmission.

An additional advantage of this design is that you can drop the mud and dirt in the teeth area. This feature further contributes path 56 to remove dirt that passes between each opposite side 32, 34 of round the outer rim 30 and the alignment flange 44, as best seen in figure 3 and 4. The way to remove dirt is intended to eliminate obstacles to cleanse the pulley from the dirt. As shown in the drawings, the path 56 to remove dirt inclined from the opposite side relative to the alignment flange 44, which facilitates the cleansing from dirt and prevents the lock Zack is ainoi rim of the pulley. A curved surface or other configurations can also perform this delete function. Moreover, the alignment flange 44 may be blocking the penetration of dirt into the space between adjacent teeth, first of all.

Various embodiments of the description can also include combinations of the various elements set forth in the claims, as if each independent claim was a claim that is dependent on the other dependent item, uniting the limitations of each of the preceding dependent claims and independent claims. Such combinations clearly fall under the scope of the present description of the invention.

Although the invention has been specifically shown and described with reference to several embodiments, for specialists in this field would understand that changes in form and details may be made to the various embodiments disclosed here without departing from the idea and scope of the invention, and that various embodiments of which are disclosed herein are not intended to serve as limitations of the scope of the claims. All the links provided here, are fully incorporated in the present description by reference.

1. Self-levelling system of pulleys and drive the CSO belt, contains:
drive belt, containing many located at a distance from each other in the longitudinal direction of the inner protrusions, each of which has an alignment groove dividing the lug into first and second segments of the ledge, with the alignment groove has a depth of the alignment grooves; and
at least one pulley made with the possibility of coupling with the inner surface of the belt and containing:
frame made with the possibility of rotation around the axis of rotation and having a circular outer rim with opposing sides;
many district teeth, held in radial and axial direction from the rim, each tooth has a width of the tooth and is made with possibility of accommodation between adjacent inner lugs of the drive belt; and
the alignment flange passing radially between adjacent circumferential teeth and made with the possibility of accommodation in the alignment groove, and the alignment flange passes radially no further from the axis of rotation than the circumferential teeth,
this circumferential teeth, the alignment flange and the alignment groove is designed so that with the alignment flange is placed in the alignment groove, the belt moves around the ring teeth.

2. The system according to claim 1, in which the circumferential teeth, the alignment is lanez and the alignment groove is designed in such a way what with the alignment flange is placed in the alignment groove, the belt also moves along the alignment flange.

3. The system according to claim 1, additionally containing the path to remove dirt, passing between at least one of the opposite side of the outer rim and the alignment flange, and the way to remove dirt is free from obstacles between at least one of the opposite side of the outer rim and the alignment flange.

4. The system according to claim 3, in which the path to remove dirt is inclined between at least one of the opposite side of the outer rim and the alignment flange.

5. The system according to claim 1, in which the alignment grooves are in the longitudinal direction of the belt, and the alignment flange runs essentially perpendicularly with respect to the width of teeth.

6. The system according to claim 1, in which the alignment groove is located in the center of the ledge, and each tooth passes in the direction of the width at equal distance from each side of the rim.

7. The system according to claim 1, in which each tooth passes radially for levelling flange away from the axis of rotation.

8. The system according to claim 1, in which each tooth is designed in such a way as to essentially fill the space between adjacent tabs.

9. The system according to claim 1, in which the frame of the pulley, at least one is on the pulley further comprises a set of spokes between the rim and the connecting ring, there is an axial offset to the selected distance between the coupling ring and the rim, whereby when attaching the connecting ring to the rotating element, the position of the rim along the axis of rotation varies depending on which of the opposite sides of the rim is a front.

10. The system according to claim 1, containing at least two pulley.

11. The system of claim 10, in which each pulley has a different diameter.

12. The system according to claim 1, in which the alignment flange has a width which essentially is constant as it passes radially to the rounded distal end.

13. The system according to claim 1, in which the drive belt has a width of the belt and the alignment groove has a width of the alignment grooves constituting less than 1/3 the width of the belt.

14. The system according to claim 1, in which the drive belt has a width of the belt and the alignment groove has a width of the alignment grooves constituting less than 1/4 of the width of the belt.

15. The system according to claim 1, in which the drive belt has a width of the belt and the alignment groove has a width of the alignment grooves constituting less than 1/8 of the width of the belt.

16. The system according to claim 1, in which the drive belt has a width of the belt and the alignment groove has a width of the alignment grooves component is less than 1/10 of the width of the belt.

17. The system according to claim 1, further comprising a gap between the width of the alignment grooves and the width of the alignment flange.

18. The system according to claim 1, in which the alignment flange is held radially on the distance of the alignment flange that locates the distal end of the alignment flange in alignment with the groove at a distance not greater than the depth of the alignment grooves.

19. System p, in which the alignment flange is held radially on the distance of the alignment flange that locates the distal end of the alignment flange in alignment with the groove a distance less than the depth of the alignment grooves.

20. The system according to claim 1, in which the belt has a width of about 11 mm

21. Self-levelling system of pulleys and a drive belt, comprising:
drive belt, containing many located at a distance from each other in the longitudinal direction of the inner protrusions, each of which has an alignment groove dividing the lug into first and second segments of the ledge, with the alignment groove has a depth of the alignment grooves; and
at least one pulley made with the possibility of coupling with the inner surface of the belt and containing:
frame made with the possibility of rotation around the axis of rotation and having a circular outer rim with opposing what the parties;
many district teeth, held in radial and axial direction from the rim, each tooth has a width of the tooth parallel to the axis of rotation, and each tooth is made with possibility of accommodation between adjacent inner lugs of the drive belt; and
the alignment flange passing radially between adjacent circumferential teeth and made with the possibility of accommodation in the alignment groove, and the alignment flange is held radially on the distance of the alignment flange that locates the distal end of the alignment flange in alignment with the groove at a distance not greater than the depth of the alignment grooves.

22. System of a pulley and belt drive for a Bicycle, the Bicycle includes a crank system designed to attach to the first pulley and the rear wheel hub, intended to connect with the second pulley, and a pulley system and belt contains:
drive belt, containing many located at a distance from each other in the longitudinal direction of the inner protrusions, each of which has an alignment groove dividing each of the ridges on the first and second segments of the ledge;
the first pulley is made with the possibility of coupling with the inner surface of the belt and containing:
the frame, made possible with the unity with the crank system of the Bicycle to rotate around the axis of rotation and having a circular outer rim with opposing sides;
many district teeth, held in radial and axial direction from the rim, the teeth are held in the axial direction of the width of the tooth at least equal to the width of the belt, and each tooth is made with possibility of accommodation between adjacent inner lugs of the drive belt;
the second pulley is made with the possibility of coupling with the inner surface of the belt and containing:
frame made with the possibility of connection with the hub of a bike wheel for rotation about an axis of rotation and having a circular outer rim with opposing sides;
many district teeth, held in radial and axial direction from the rim, the teeth are held in the axial direction of the width of the tooth at least equal to the width of the belt, and each tooth is made with possibility of accommodation between adjacent inner lugs of the drive belt;
moreover, at least one of the first and second pulley further comprises a leveling flange passing between adjacent circumferential teeth, with the alignment flange is made with the possibility of accommodation in the alignment groove.

23. The system according to item 22, in which the drive belt has a width of the belt and the alignment groove has a width of the alignment grooves constituting less than 1/3 width of the drive is Emma.

24. The system according to item 22, in which the alignment flange passes radially no further from the axis of rotation than the circumferential teeth, with the alignment flange, the alignment groove and the circumferential teeth are designed so that with the alignment flange is placed in the alignment groove, the belt moves around the ring teeth.

25. The system of paragraph 24, in which the distal end of the alignment flange does not reach the bottom of the alignment grooves.

26. The system according to item 22, in which the frame of the second pulley further comprises a set of spokes between the rim and connecting the ring to the sleeve, there is an axial offset to the selected distance between the coupling ring and the rim, whereby when attaching the connecting ring to the sleeve, the position of the rim along the axis of rotation varies depending on which of the opposite sides of the rim is a front.

27. The system according to item 22, in which the frame of the first pulley further comprises means for functional connection of the crank system, with means for functional connection of the crank system include axial displacement by a selected distance, whereby the functional connection of the frame of the first pulley with the crank system, the position of the rim along the axis of rotation changes depending on which item is etivoprosy sides of the rim is a front.

28. The bike contains:
the crank system;
the rear wheel hub and
a system of pulleys and belt, functionally coupled to the crank system and the rear wheel hub, the system of pulley and belt contains:
drive belt, containing many located at a distance from each other in the longitudinal direction of the inner protrusions, each of which has an alignment groove dividing each of the ridges on the first and second segments of the ledge;
the first pulley is made with the possibility of coupling with the inner surface of the belt and containing:
frame made with the possibility of connection with the crank system of the Bicycle to rotate around the axis of rotation and having a circular outer rim with opposing sides;
many district teeth, held in radial and axial direction from the rim, the teeth are held in the axial direction of the width of the tooth at least equal to the width of the belt, and each tooth is made with possibility of accommodation between adjacent inner lugs of the drive belt;
the second pulley is made with the possibility of coupling with the inner surface of the belt and containing:
frame made with the possibility of connection with the hub of a bike wheel for rotation about an axis of rotation and having a circle of the first outer rim with opposing sides;
many district teeth, held in radial and axial direction from the rim, the teeth are held in the axial direction of the width of the tooth at least equal to the width of the belt, and each tooth is made with possibility of accommodation between adjacent inner lugs of the drive belt;
moreover, at least one of the first and second pulley further comprises a leveling flange passing between adjacent circumferential teeth, with the alignment flange is made with the possibility of accommodation in the alignment groove.

29. The pulley for use with a drive belt and drive belt contains many located at a distance from each other in the longitudinal direction of the inner protrusions, each of which has an alignment groove dividing each of the ridges on the first and second segments of the ledge, while the pulley contains:
frame made with the possibility of rotation around the axis of rotation and having a circular outer rim with opposing sides;
many district teeth, held in radial and axial direction from the rim, each tooth has a width of tooth at least equal to the width of the belt, and each tooth is made with possibility of accommodation between adjacent inner lugs of the drive belt; and
the alignment flange held IU the DN adjacent circumferential teeth, when this alignment flange is made with the possibility of accommodation in the alignment groove and passes radially no further than the circumferential teeth, the axis of rotation.

30. The pulley on clause 29, which additionally contains the path to remove dirt, passing between at least one of the opposite side of the outer rim and the alignment flange, and the way to remove dirt is free from obstacles between at least one of the opposite side of the outer rim and the alignment flange.

31. The pulley on clause 29, in which the alignment flange has a width which essentially is constant as it passes radially to the rounded distal end.

32. The pulley on clause 29, in which the alignment flange has a width which is less than 1/3 the width of the teeth.

33. The pulley on clause 29, in which the alignment flange has a width which is less than 1/4 of the width of the teeth.

34. The pulley on clause 29, in which the alignment flange has a width which is less than 1/8 of the width of the teeth.

35. The pulley on clause 29, in which the alignment flange has a width which is less than 1/10 of the width of the teeth.



 

Same patents:

The invention relates to a device, to ensure the normal operation of machinery

FIELD: machine building.

SUBSTANCE: in a shaped wheel of a drive sprocket there is a central hole with enclosing surface for installation on a hub of a driven sprocket. On enclosing surface along the generatrix there is a groove for a pin and two grooves for fasteners. In shaped wheel of driven sprocket there is also one hole for a pin and two attachment holes. A set of drive and driven sprockets of intermediate shaft includes drive and driven sprockets similar to the above, each of which includes a shaped wheel having a hole for pin (16) and two attachment holes (17).

EFFECT: improving strength and reliability of connection of drive and driven sprockets.

3 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: sprocket provided with possibility of dirt removal includes housing (105); a lot of teeth (101) projecting out of the housing; a lot of grooves (102) in alternating location with teeth; at that, a belt tooth is arranged in each groove; cavity (103) located radially inside each groove and interacting with the groove. In addition, cavity (103) includes mounting seat (111) for support of the belt. Mounting seat (111) is located between the groove and cavity (103). Cavity (103) includes surface (104) located at angle (θ) relative to axial direction (A-A).

EFFECT: possible dirt removal.

9 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: driven sprocket (1) of lower support of demonstration installation has shank (2) with round hole (3) and projection with flat support surface (6) at least in its lower part. Flat support surface (6) is formed with insert (4) made from the material the strength of which is higher than that of shank material.

EFFECT: invention allows enlarging the sprocket service life.

8 cl, 8 dwg

Chain transmission // 2455542

FIELD: machine building.

SUBSTANCE: chain drive includes a drive with the driving (10) and driven sprocket and an endless chain, performed with alternating links of two steps of different size. On the sprocket an additional contour of engagement with a bearing hinge is made. Teeth (11, 12) of the sprocket, contacting with a bearing hinge, are made with different side profiles, corresponding to the geometry of mating hinge of the load-bearing chain link. The bearing hinge is additionally equipped with roller (13), which provides running-in of the side profile of the teeth sprocket in contact with the bearing link. The axis of the bearing hinge are made compatible with a pitch circle in relation to the leading sprocket.

EFFECT: invention can reduce the load on the sprocket teeth and chain links.

3 cl, 4 dwg

Sprocket // 2446332

FIELD: machine building.

SUBSTANCE: proposed sprocket comprises round disk with multiple teeth and tooth spaces and, at least, one noise shield to reduce noise in chain running onto sprocket. Said noise shield includes mounting lug for engagement with sprocket and elastic element fitted thereon to attenuate chain running on sprocket. Elastic element comprises protective jacket or protective coating. Noise shield is arranged between segments of circular segment and below teeth of sprocket. Said segments are defined by geometrical lines between sprocket center and tooth spaces. At least one noise shield is arranged in every segment of circular segment.

EFFECT: decreased wear, longer life.

12 cl, 10 dwg

FIELD: machine building.

SUBSTANCE: chain transmission includes sprockets (1, 2) and rope (3) with balls (4) fixed on it. Rope is entered to longitudinal slots or holes of balls, and plugs (10) serving for rope tension are entered to threaded or clearance holes perpendicular to them. In the second version of chain transmission the rope has bushes fixed on it. For compensation of pitch increase during the rope drawing at the bushes there made are longitudinal threaded holes into which threaded plugs or screws are introduced. In the third version of chain transmission the flexible transmitting element is represented with two and more ropes which are entered to transverse grooves or holes of bushes and fixed in them. In the fourth version of chain transmission, in order to obtain closed rope loop, its ends are entered on both sides to transverse holes of closing ball or bush, which are assembled of two halves. In the fifth version of chain transmission the sprockets are provided with elastic teeth the sides of tops of which and on the side of cavities throughout the length of teeth, or on the side of their end surfaces, or in staggered order, or in various combinations there made are slots in radial direction.

EFFECT: invention allows increasing the service life of chains and sprockets, increasing heat resistance, reducing friction, compensating the chain pitch increase during the rope drawing, improving stability of transmission ratio and reducing the sensitivity of chains to misalignment of axes.

17 cl, 15 dwg

FIELD: transport.

SUBSTANCE: sprocket (23) has outer circular surface (26) and fulcrum pin, recesses for chain horizontal links and recesses for chain vertical links. Recesses for chain vertical links are separated by teeth 36. Side face 39 of tooth in contact with loaded chain vertical link features special profile and sizes. Chain sizes are selected so that vertical link does not come in contact with tooth side face by its front part unless definite load is applied on the chain. Contact between tooth side face and front part of chain appropriate link occurs only definite load is exceeded.

EFFECT: sprocket that allows increased load on chain links.

29 cl, 7 dwg, 1 tbl

FIELD: machine building.

SUBSTANCE: guiding roller (8) for link chains, for example, for round-link chains or chains out of profile steel, has recesses (28) along perimetre for horizontal links of chains and recesses (35) for vertical links of chains. Recesses (35) for vertical links of the chains are separated from each other with teeth (36). Sides (39, 41) of teeth (36), where a vertical link of the chain adjoins under load, are calculated and profiled by a special procedure. The calculation ensures a gap between the vertical link of the chain with its front part and the side surface of the tooth untill the chain is loaded to a specified load. Side surface of the tooth and front part of the corresponding vertical link of the chain contact only after specified load onto the chain.

EFFECT: raised efficiency of chain.

29 cl, 7 dwg, 1 tbl

FIELD: transport.

SUBSTANCE: invention relates to chain wheel for chain drives with rotation axis D and two chain link boxes 20, 30 arranged along chain wheel edges nearby each other and sifted relative two each other that cross chain wheel in inclined position. Each box 20, 30 has lateral wall and opposite wall, and webs 31, 21 arranged along circumference. To simplify producing chain wheel for inclined chain links and improve force distribution, this invention proposes make box lateral and opposite walls form support surfaces inclined to rotation axis D and run to box base section.

EFFECT: simplified design, better distribution of forces at chain loading bearing links.

19 cl, 13 dwg

FIELD: transport.

SUBSTANCE: invention relates to rotary device for chain drive or rotary device for extraction or transportation devices incorporating chain traction. Rotary device for chain and chain wheel incorporated therewith are proposed. Note here that lateral surfaces of bends in chain belt horizontal links are lower, in every case, than equatorial line, and that they represent concaved recess, while receiving horizontal recesses of chain wheel have their lateral surfaces of teeth made barrel-like protruded to mate concaved lateral surfaces of aforesaid bends.

EFFECT: reduced specific compression force between to parts.

22 cl, 10 dwg

FIELD: transport.

SUBSTANCE: drive sprocket rims are arranged on overrunning coupling. Drive comprises pair of boomerang-like bell cranks, each having pedal arm resting upon opposite ends of carriage shaft and arm that transfers torque. Both aforesaid arms are bent in the plate perpendicular to carriage axis to form boomerang-like shape. Arm that transfers torque is rigidly coupled with similarly bent element intended for transfer of toque to carriage shaft. Overrunning coupling is rigidly coupled with aforesaid elements that transfer torque. Pedal arm of one of the levers and arm that transfers torque are furnished with weights rigidly fixed thereon. Aforesaid drive is designed for bicycles, bicycle-tandems and bicycles with trailers.

EFFECT: optimising pedaling, increased tractive characteristics.

30 cl, 14 dwg, 4 tbl

FIELD: transport engineering; bicycles; foot crank mechanisms.

SUBSTANCE: left-hand crank 3 is provided with square hole for mounting on shaft 1 and cylindrical groove with thread mating with hollow bolt 2 freely fitted on shaft 1. Said bolt thrusts through its left-hand end face surface against support bead of shaft. With left-hand crank 3 tightened by hollow bolt 2, shaft 1 is fitted in bearing unit, and left-hand bearing 8 prevents turning out of hollow bolt 2. Thread is made on outer surface of shaft 1 from right-hand side of shaft on which union nut 4 is installed to support right-hand bearing 9. Body of nut is made in form of cylindrical bushing of which driving sprockets 5 are mounted for free rotation. Bead of union nut 4 limits axial displacement of sprockets 5. Groove with thread is made in sprocket hub 6, and thread is made on outer surface of hub of right-hand crank 7 to provide possibility of tightening of right-hand crank 7 provided with square hole for mounting on shaft 1 by freely rotating hub 6 of sprockets which plays the part of nut.

EFFECT: prevention of spontaneous turning out of bottom bracket parts, provision of sealing of bottom bracket.

5 cl, 2 dwg

Dobby node bike // 2241629
The invention relates to the adjustment of the bearings of the carriage bike

The invention relates to velotron, in particular to designs sports, travel, tourism and cargo-and-passenger rental

The invention relates to gravitational transport

Rod // 2023620

FIELD: transport.

SUBSTANCE: invention relates to vehicles with muscle drive. Proposed recumbent bicycle comprises frame with seat mounted at front rotary wheel and rear wheel, fork with handle-bar fitted in frame bearings. Shaft with drive sprocket runs in frame bearings and is engaged with one of driven wheel sprockets. Driven wheel has set of sprockets, free running coupling and shifting lever. Shaft with drive sprocket is equipped with two crank-and-rocker mechanisms arranged on opposite sides of said shaft cranks of which are opposed while pedal is secured to every con-rod. Rockers are articulated by one end with con-rod and, by opposite end, with yoke with eccentric or screw. Yoke is squeezed at guide tube coupled by bracket with bicycle frame. Shaft with drive sprocket arrange between front and rear wheels, nearby front wheel.

EFFECT: simplified design, fast adjustments.

3 dwg

Transport facility // 2478056

FIELD: transport.

SUBSTANCE: invention relates to single-axle vehicles with steering device driving both wheels. Wheel chassis consists of two wheels 1 with rims 2 with hubs and treads 3. Wheels 1 are provided with individual drive. Pairs of axles 5, 6 are articulated by levers 4 to make antiparallel link mechanism inside appropriate rims 2 for steering purposes. Balancer is mounted on wheel axles 12. Driver seat 9 is arranged at one end of said balancer and gyro counterweight (not shown) is arranged at opposite end. Balancer is composed of two three-rod linkages 7 coupled by levers 4 to make antiparallel link mechanism. Linkage 7 has two rods 8 articulated with axles 5, 6 and third telescopic lever 10 articulated with assembly 11 composed of four joints to allow free revolution of near ends of axles 12. In straight movement, wheels 1 run parallel. In turns, wheels 1 run at angle to each other.

EFFECT: better cornering ability.

2 cl, 1 dwg

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