Dobby node bike

 

The invention relates to the adjustment of the bearings of the carriage of bicycles. Shim (15) is fixed against axial movement by a pin (9) and contains the adjustment screw (11) and two stops, which form the power triangle, interacting with another washer (14). In turn, the washer (14) acts on the dust ring-lid (3) with a movable cone (5), which is pressing bearings (2) to the Cup (4). The proposed solution is aimed at ensuring the reliability of the carriage. 7 C.p. f-crystals, 5 Il.

The invention relates to velotron, namely Dobby nodes, and can be used mainly on the rental of any age group in the pedal chain drives on the drive wheel, and drives other similar vehicles.

There are various designs Dobby nodes pedal actuators rental with a one-piece connecting rods, consisting, usually, of a casing rigidly connected with the frame of the bike, which are in one way or another the bearings or sliding or rolling elements mounted on the shaft, made in one piece with the connecting rods and bearing in the bearing depodwin provided with a device for adjustment of clearances in the bearings, due to design improvements which reduce metal consumption, improving technology, expanding the range of applications [1-5].

That is, for example, known Dobby node pedal actuator of a Bicycle, comprising a housing, bearings, each of which is accommodated in the housing between the Cup and cone on the shaft of the Dobby unit, made in one piece with the connecting rods and the adjustment of the clearance in the bearings [3].

The adjustment of the clearance in the bearings made in the form of sleeves and placed in the body of the node between the said bearings, provided with an adjusting screw that has cone washer for engagement with the tapered surfaces of the sleeves, on the inner surfaces and the surfaces of the cones are made of notches, and the adjusting screw is placed in the installation hole of the shaft.

Disadvantages Dobby unit are great intensity, complexity, and complexity of manufacturing elements of a complex configuration.

Known Dobby the drive unit of a Bicycle, selected as a prototype to offer, as the closest technical solution [1]. Dobby node pedal actuator of a Bicycle includes a housing when installed on the shaft of the Dobby unit, made in one piece with the rod and carries a drive sprocket, and the device controlling the clearance in the bearings, which represents an installation sleeve, housed in the grooves of the shaft, and a threaded sleeve fixed on the shaft retainer within the bore of the shaft.

The disadvantage of the prototype is a significant amount of fixing and adjusting the parts, which complicates the Assembly on the Assembly line for mass production; the complexity of manufacturing the individual parts and the complexity of Assembly:

- used bushings placed in the grooves of the shaft, made in the form of a split semirings, therefore, when assembling the necessary pairwise control;

- implementation of the grooves on the already bent shaft-connecting rod is difficult, and their pre-production before the bending of the workpiece causes the appearance of weakened areas on the rod, which during bending will be deformed, resulting in reduced accuracy of the node in the areas of the grooves;

- joint application installation and threaded bushings increases the diameter of the bearings of the site and its buildings, which increases the intensity and dimensions of the structure;

- when building the site for installation of the shaft-connecting rod in case necessary wveyem, was to increase reliability, simplify and cheapen the process of manufacturing parts Dobby unit and simplification of the Assembly process of the entire site for mass production of bicycles, the actuator which includes a shaft with a one-piece connecting rods (per rod).

The task is solved in that Dobby the actuator drive bike with a one-piece connecting rods, comprising a housing, bearings, each of which is closed by a dust ring with a lid and placed in the enclosure between the Cup and cone set through the sleeve on the shaft, made in one piece with the rod and having a hole, and the adjusting device, provided with an adjusting screw, according to the proposal, the adjusting device made in the form of interlocked mounted on the shaft and placed in a Cup-shaped casing two washers, one of which is regulating by means of fixing against axial movement along the shaft by a pin, passing through the said hole and located protruding from the shaft ends in the groove made transversely in the adjusting washer, adjusting washer set screw on the symmetry axis, while on the periphery of one half of the washer and on the periphery of the other half of the washers in the axis of symmetry, on which is mounted a screw, the screw and lugs form a power triangle, interacting with another washer adjacent to the dustproof ring-bearing cover, and in the case of node a longitudinal groove.

The site is characterized by the fact that the sleeve is rigidly fixed on the shaft and cones ov planted on them.

In the present node, the groove is closed by a cover, and its length is chosen equal to the distance between the bearing cups.

It is advisable in such Dobby node of the ring dust-cover to perform recessed in the Cup bearings.

It is advisable in this node stops to perform as a pair of additional adjusting screws.

Stops can be made in the form of a pair of vydavac.

Stops can be made in the form of a pair of protrusions formed on the curly spring element fixed in the holes of the washers and symmetrically spaced on its periphery on both sides of the screw.

This embodiment design Dobby unit will facilitate the manufacture of parts and Assembly by simplifying and reducing the number of mounting elements; combining the adjustment of the parts into a single, simply collect and easily configurable unit, as well as by facilitating the operation, the AI of size, selected empirically. In addition, this design is more reliable, because the shaft is weakened areas, and all assemblies host closed peligrosamente elements; the required accuracy of the bearing on the shaft and Dobby unit as a whole provided the proposed adjustment and press-fitting the bushing on the shaft, allowing optimal tightening and adjustment of all Dobby unit by rotation of the screw engaged in the axial displacement of the outer washer is strictly perpendicular to the axis of the shaft, due to the fact that interacting with it shim based its transverse notch on the pin, which is the axis of symmetry of the said washer, and having on the periphery on one half of the adjustment screw, and on the other the opposite half of the two stops, forming together with the screw and pin samostirayuschuyusya power circuit axial movement of the whole set of details Dobby unit, ensures the desired adjustment of backlashes.

The proposed design of the Dobby unit by means of the adjusting device made in the form of interlocked washers supplied with power automatic “triangle” and fixed against axial peremeshannyj details. Dobby site and simple to manufacture, reliable and efficient.

Offer Dobby the drive unit of the Bicycle illustrated by drawings, where Fig.1 shows the overall view schematically, in section, and Fig.2 - type And the pin mounted in the hole of the shaft; Fig.3 - section b-B (Fig.1) - views deaf groove; Fig.4 - section B-B (Fig.1) - a view of the pinch protrusions diagram of the power triangle on the surface of the shim of Fig.5 - section G-G (Fig.4) - view the spring.

Dobby node pedal chain drive bike with a one-piece connecting rods includes a housing 1, bearings 2, each of which is closed dustproof ring-cover 3 and accommodated in the housing 1 between the Cup 4 and the cone 5, installed through the sleeve 6 on the shaft 7, is made in one piece with the connecting rods 8 (shaft-connecting rod and having a hole 9, the device 10 of the adjustment provided by the adjusting screw 11. The sleeve 6 is made, for example, solid and pressed on the shaft 7 to its bending and cones 5 is installed on the bushing 6 on a sliding fit, which provides the necessary accuracy of their installation to the shaft. The sleeve 6 may be made in the form of a split ring fixedly mounted on the shaft. On the shaft 7 is welded to the drive sprocket 12, unnuh in a Cup-shaped casing 13 of the two washers 14, 15, one 15 - of which, is by adjusting commit against axial movement along the shaft by a pin 16 passing through the said hole 9 of the shaft 7 and located protruding from the shaft ends in the groove 17, is made transversely in the adjustment washer 15. The washer 15 has an adjusting screw 11 on the axis of symmetry on the periphery of one half of the washer, and on the other, opposite side of this washer, on its periphery made two stops 18, placed equidistant from the screw 11 and spaced on either side of the screw symmetrically above the axis of symmetry for education together with the pin 16 become automatically self-centering power circuit axial movement of the whole set of details Dobby unit, in this case, the screw and lugs form a power triangle. In case 1, the bottom node is made closed the lid 19 of the longitudinal groove, the length of which is chosen to be equal to the distance between the cups 4 and a width greater diameter of the shaft 7, which provides the possibility of mounting structure for both production and road conditions. Dustproof ring-cover 3 bearings 2 are recessed in the Cup 4, which creates a guaranteed installation clearance and prevents the accumulation of dirt on the inner friction surfaces of the node.

AVOK, or in the form of a pair of gland protrusions formed on the curly spring element 20, for example, a bracket fixed in the holes of the washers 15 and symmetrically spaced on the periphery of this washer on either side of the axis of the screw, which simplifies manufacture and Assembly, simplifies the design, increasing its reliability.

Dobby the drive unit of the bike operates by rotation of the shaft 7 in the bearing 2 from the axis pedals (not pok.). The shaft 7 torque is transmitted to the sprocket 12 drive bike. The bearings 2 are held against axial displacement of the adjusting device 11, 14, 15. Centering Dobby unit relative to the Bicycle frame and the permanent location of the sprocket relative to the axis of symmetry of the Bicycle is provided by movement of the latch 11 and the power of the “triangle” that prevents movement of the bearings in the axial direction and around the shaft as it rotates.

Accuracy and build quality is ensured by the precision parts manufacturing Dobby unit.

The proposed design can be manufactured by known equipment using existing technology and standard parts. Special equipment and expensive materials in the manufacture of the proposed site brezec and conducted his tests, confirming that the design of the Dobby unit described above may find application in new products velopment - children of two-, three-wheeled, combined rental, adult models, and the modernization and repair of existing bike Park or vehicles with similar muscular drive, which allows to conclude that the criterion of “industrial applicability”.

The proposed solution meets the criterion of “novelty”, as it has distinctive properties from the prototype. This solution corresponds to the criterion of “inventive step”, as the construction of the Dobby unit performed as suggested in this description, than the result of the same design

Sources of information

1. A. C. the USSR №362727, CL 62 M 1/02, Z. 09.10.70, op. 01.02.72. “The carriage bike with a one-piece connecting rods” (prototype).

2. A. C. the USSR №931574, CL 62 M 3/00, Z. 13.11.80., op. 30.05.82. “Dobby node pedal drive bike (similar).

3. A. C. the USSR №1092084, CL 62 M 3/00, Z. 25.08.82., op. 15.05.84. “Dobby node pedal drive bike (similar).

4. A. C. the USSR №1684161, CL 62 M 1/00, Z. 05.09.89., op. 15.10.91. “The connection node of pagad, “The carriage bike (similar).

Claims

1. Dobby the drive unit of a Bicycle, comprising a housing, bearings, each of which is closed by a dust ring with a lid and placed in the enclosure between the Cup and cone set through the sleeve on the shaft, made in one piece with the rod and having a hole, and the adjusting device, provided with an adjusting screw, characterized in that the adjusting device is made in the form of interlocked mounted on the shaft and placed in a Cup-shaped casing two washers, one of which is regulating by means of fixing against axial movement along the shaft by a pin passing through the said hole and located protruding from the shaft ends in the groove, made transversely in the adjusting washer, adjusting washer set screw on the symmetry axis at the periphery of one half of the washer and on the periphery of the other half of washers made two stops, equidistant from the screw and spaced on either side of the screw symmetrically above the axis of symmetry, on which is mounted a screw, the screw and lugs form a power triangle, interacting with other Sha/p>

2. Site under item 1, characterized in that the sleeve is rigidly fixed on the shaft and cones ov planted on them.

3. Site under item 1 or 2, characterized in that the groove is closed by the lid.

4. Site under item 1 or 2, characterized in that the length of the groove is chosen equal to the distance between the bearing cups.

5. Site under item 1 or 2, characterized in that the ring dust-cover recessed in the Cup bearings.

6. Site under item 1 or 2, characterized in that the stops made in the form of a pair of additional adjusting screws.

7. Site under item 1 or 2, characterized in that the stops made in the form of a pair of vydavac.

8. Site under item 1 or 2, characterized in that the stops made in the form of a pair of protrusions formed on the curly spring element fixed in the holes of the washer.



 

Same patents:

Bearing unit // 2233390
The invention relates to the field of mechanical engineering

The bearing // 2199040
The invention relates to mechanical engineering and can be used as a play-free linear guides mechanisms

The slide bearing // 2086816
The invention relates to the field of engineering and applies bearing slides with adjustment for compensating radial wear

The bearing shaft // 2052680
The invention relates to mechanical engineering, in particular for the bearing, consisting of roller bearings and supports employees shafts

Multi site // 2015426

The bearing shaft // 2006703
The invention relates to the field of engineering, in particular for the bearing, consisting of roller bearings and supports employees shafts

The bearing shaft // 2006702
The invention relates to mechanical engineering, in particular for the bearing, consisting of roller bearings and supports employees shafts

The bearing shaft // 2006701

The bearing // 2006700
The invention relates to mechanical engineering, in particular for the bearing

The bearing shaft // 2006699

The invention relates to a pedal bike, equipped with a clamp (24) securing the cleat (14) shoes

The invention relates to a pedal bike with clip fastening cleat (14) shoes to shoes for cyclists

The invention relates to a power supply signal devices in Bicycle pedals

Site bicycle pedals // 2232693
The invention relates to a pedal bike with clip 24 mounting the cleat shoes

Site bicycle pedals // 2232101
The invention relates to a pedal bike, equipped with a clamp (24) securing the cleat (14) shoes

Pedal bike // 2199464
The invention relates to vehicles with a muscular drive

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

Rod // 2117599
The invention relates to vehicles, in particular for vehicles with pedal mechanism driven by muscular power

Rod // 2111883
The invention relates to machines with the pedal mechanism

The invention relates to gravitational transport

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

Up!