Bike "maxi"

 

(57) Abstract:

Usage: the invention relates to the design biotransport funds rental of sports, tourism and road type with the pedal-crank rotary actuator. The inventive Bicycle includes a front driven wheel of a smaller diameter than the rear sprocket with the driven sprocket, overrunning clutch, brakes and chain tension, caretake-saddle unit, installed in the seat tube with a possibility of free movement on it, and separate means of recording from turning in the tube and in the required corresponding to the profile of the road position. Each rod is made of a base with means recording moving it to the extension cable with a minimum length of the connecting rod 220-200 mm and maximum 340-360 mm sprocket has a number of teeth greater than 70 driven no more than 15, and the diameter of the drive wheel is not less than 710 mm, the diameter of the guided wheel less than 350 mm Front seat, guide Dobby unit connected between a flexible or a rigid element having the opportunity to move freely seatpost tube with an oval cross-section. The invention can be used in the production of the I biotransport engineering, mainly to the construction of a Bicycle with a pedal-and-rod drive and rod of adjustable length, namely a two-wheeled bike sport, tourist or traveler's destination.

The main disadvantage rental of known construction is rigid fastening Dobby unit, limiting the magnitude of the control torque drive torque on the axis of the drive due to a small and limited distance from the axis to the surface of the road, including in known constructions containing caretake-saddle block structural element with a saddle on top and Dobby node at its lower end, is also rigidly fixed on the frame, as for example described in the patent of England N 2117333, CL 62 To 3/10, 1983.

The closest in technical essence to the proposed solution is a Bicycle [1] It includes installed on the frame front driven and rear leading wheels with overrunning clutch, the mechanism of a tension of a flexible circuit with pedal-and-rod drive, a drive sprocket which is mounted on the axis of the housing Dobby unit, made with the guide pipe mounted in the seat tube and fixed in the desired position by the screw with one who once in the seatpost tube installed front seat, the drive rods are fixed length with pedals on the ends.

The disadvantage of the prototype is rigid fastening of the drive axis on the frame, resulting in limited diameter sprocket, the length of the rods and, even when their adjustable, changing their length is possible in a very small range (20-25 mm), slightly increases torque, but because the main increase in torque for easier pedaling, for example on the rise, it is necessary to ensure the reduction of diameter of the drive sprocket and/or increase in diameter (number of teeth) guest stars. It is connected with reduction gear ratio of the actuator, and hence speed, so the cyclist climb on the bike serial design with low speed. Therefore, adjust the torque decrease ratio of pseudomedicine shoulder apps actuation forces is inefficient by adjusting the speed and length of lever application of force to the rods.

However, unacceptably high and the location of the drive axis with a constant hard pinning caretake-saddle block in the seat tube of the frame, as in ectory movement of the pedal cranks great length leads to unnecessary energy losses and does not allow maximum speed because the speed limit pedaling (cadence). The use of adjustable length connecting rods with fixed high axis drive, removing the problem of adjustment of torque, slightly degrades some operational properties, because it reduces the safety of the cyclist when driving due to the increased height of the center of gravity of the rider, and also because of certain complications receptions, launches and landings in the saddle.

The purpose of the invention improve performance characteristics of the bike by facilitating pedaling with a simultaneous increase in speed characteristics and extension of the value adjustment of the torque of the drive axis, respectively, the profile of the road without stopping traffic.

The objective is achieved through the execution of actuator movable in a vertical direction axis, adjustable length connecting rods respectively to the profile of the road by raising the amplitude of such adjustment and performance gear ratio of the drive and the diameter of the drive wheel, providing step bike more 9,8 m

The essence of the invention lies in the fact that the bike "Maxi" contains managed front wheel diameter less than the diameter of the rear drive wheel, overrunning clutch and one at least is ogene and chain tension, caretake-saddle block in the seat tube of the frame, provided with a separate means of fixing him from turning around the axis and in the desired position in the seatpost tube. Each rod of the actuator is made of rigidly fixed at one end on the axis of the drive base and extension cord with foot pedal mounted on the base with the ability to move it and fix the base in the desired position, the gear ratio of the drive and the diameter of the drive wheel is made such that provide step bike more 9,8 m

Bike "Maxi" can have the seatpost tube and located within the guide Dobby unit, the front seat with the location of the major axis of the oval cross-sectional them in the symmetry plane of the Bicycle. Guide and rack are connected by cable, on-axis saddle mounted articulated strut, the lower end of which is in contact with the toothed section of the horizontal tube of the frame, and each ground rod provided with a longitudinal hole in the tabs on the ends of rod extension, paired with a longitudinal groove, to move the strip from one position to another, and a transverse groove for fixing protrusion of odlin edema with the number of teeth Z=15, and a driving wheel with a diameter of 10 mm (Fig. 1-3, 6-8).

Hinge spacer on the axis of the saddle may be made of elastic and spring-loaded to the rack saddle (not shown in the drawing).

With housing Dobby unit can be connected rigid element (tube, rod), freely around the seatpost tube, at the upper end of his set the saddle, and the front sector of end provided with teeth, serrated section communicates the end of the spring lever-latch, mounted on a horizontal pipe, and the lower end of the tube is rigidly fixed to the housing Dobby unit and made a hole for the fixing screw, the ends of which are located in longitudinal diametrically located grooves of the seat tube with a possibility of free movement along the slots, each rod consists of a base with protrusions and grooves in them and moving along the longitudinal holes of the projections rod extension cord with locking tab on the end thereof, a drive sprocket has, for example, Z=99, led Z=15 and a driving wheel diameter of 710 mm (Fig.4-8).

The locking screw may be secured to the lower end of the seat tube rigidly in the longitudinal groove of the guide Dobby unit with free the fifth trumpet. The cable is connected to the top end with a ratchet wheel provided with a driving lever and a spring-loaded lever-latch, bracket, which is fixed, for example, the seatpost clamp on the pipe, while the seat is installed in the pipe can be locked in position in a known manner, each base rod provided with a longitudinal groove on the end with the spring-loaded catch in the groove, respectively, the projection of which on the ends of each strip with box-shaped cross-section, moving on the ground, made the corresponding holes. The drive sprocket of the drive is performed, for example, with the number of teeth Z= 99, led with the number of teeth Z=13, and a driving wheel diameter of more than 710 mm (Fig.9-11).

Bike "Maxi" can have the front seat tube and a rigid element in the seatpost tube made of synthetic composite material with metal ferrules or bushings (not shown).

In Fig.1 shows a Bicycle with an oval pipe rack and the guide block, side view; Fig.2 section a-a in Fig.1; Fig.3 section b-B in Fig. 2; Fig. 4 bike with caratoke-saddle block in a round seat tube, side view; Fig.5 tube of a Bicycle, a longitudinal section; on br is BA bike caretake-troso-ratchet block, longitudinal section; Fig.10 section d-D in Fig.9; Fig.11 section E-E in Fig.10.

Bike "Maxi" consists of a frame 1 (Fig.1) with a front wheel 2, wheel 3 and the rear wheel 4. Seatpost tube 5 (Fig.2 and 3) has on the upper end of the saddle with 6 rack guide 6 Dobby unit 7. Flexible circuit 8 connects the drive sprocket 9 drive driven wheels 4 with overrunning clutch (not shown), and a tensioning mechanism 4 chains. On the axis of the saddle 6 is installed hinge spacer 10, the end of which is in contact with the toothed portion 11 of the horizontal frame tube. Hour 6 is connected with the guide rail 7 (Fig.2) the cable 12, the rack and the guide have the option of a fixed moving through the pipe 5. The overrunning clutch, tensioner circuit 4 and the circuit 8 are of known design, as well as with leading guest stars: number of teeth sprocket, for example, is equal to Z=8,4, guest Z=13 (15), the diameter of the drive wheel 4 is similar to the diameter of the serial sports (road) structures or more of them (for example, about 710-750 mm). The diameter of the front wheel in two or more times smaller than the diameter of the drive wheel, for example, equal to the diameter of the mass-produced by industry wheel folding bikes or less them that will keep unchanged baustellen in the slotted holes of the protrusions of the base 14 with the possibility of free movement. The extension 13 is provided with pedal 15 (Fig.4.5 and 2) on the free end, for example, Tulipan. The bike in Fig.4 is distinguished by the presence of a rigid element in the seatpost tube 5 round cross-section, move freely in the tube 5 and is provided with a screw 18 on its lower end, for all of which the pipe 5 is made grooves 17. In addition, the lower end of the element 20 (e.g., pipes) is rigidly connected with the guide rail 19, and at its upper end under the saddle 6 is made of the toothed section 21 that is in contact with the end of the spring arm 22, the fastening part (yoke) which is mounted on a horizontal pipe frame. The lever 22 secures the housing Dobby unit 23 in the desired height position.

The end of each connecting rod base 14 drive this bike is fixed on an axis in a known manner, for example using standard blades; at the ends of the base is produced lugs 24 (Fig.6-8) with longitudinal holes of the extension 13, and each of the holes paired longitudinal groove 25 for the locking protrusion 13 is executed at the end of the extension 13, and is coupled with a longitudinal groove 25 of the transverse groove 14 for fixing the extension in the positions (maximum or minimum length of the rod).

Seatpost Tr whom I guide Dobby unit screw 28, mounted stationary on the lower end of the pipe 5, the longitudinal groove 26 in the front seat and on the upper end of the pipe 5 to the control cable 12, the upper end of which is mounted on the ratchet wheel 29 to a lever 30 mounted on the bracket 31, provided with a spring-loaded lever 32, the end of which is in contact with the teeth of the wheel 29 (latch).

Drive this result contains the rods with the base 33 and the extension 34. At the end of the base 33 is made a longitudinal groove with a spring-loaded projection 35 (Fig.9-11), and on the ends of extension of the protrusion holes 36 and 37. Sprocket drive is made with the number of teeth Z=99, led with the number of teeth Z=13, and the drive wheel has a diameter of tires, for example, 750 mm

The proposed bike as follows.

In motion on a flat section of road bike is the rotation of the connecting rods (known pedaling) at the bottom location caretake-saddle block and the connecting rods have a minimum length, i.e., the locking protrusion 13 is priosevoy groove 14 of the base 14 (Fig.6, the groove l). The length of the entire rod while 200-220 mm and the path of movement of the pedal in this position, crank and block are carried out on a circle, is shown in Fig.Staysee anthropometric data of the cyclist. Its weight and the force applied to the pedal crank, sees the end of the seat tube from the elements of the seat 6, for example from the flange axis of the saddle, and from turning guide 7 and the rack seat 6 around the axis keeps the shape of the oval. Because the rods are longer than the rods of serial structures, even at a higher ratio of pedaling is easier than on the well-known rental, or remain the same, but at a much higher speed. The optimal combination of parameters of the drive speed and the required effort of the cyclist will be determined by testing. When approaching the ascent of the cyclist, not reducing speed and not stopping the movement rests one foot on the bottom tube of the frame 1, removes the weight from the saddle 6 and moving one hand the end of the spacer 10 to the rack 6 raises caretake-saddle block in the very top position, and the lock end of the spacer 10 in one of the teeth portion 11 will lock the saddle 6 in its upper position by means of the cable 12 and Dobby site with a sprocket wheel 9 and the rods 13 and 14 (shown by the dashed lines). Then the rider sits on the saddle 6 and, expanding on the angle extension cable 13 (Fig.8), which for this purpose in the upper vermaat protrusion 13 with a longitudinal groove 25 of the base and moves the extension cord for the foot pedal up the holes to the entrance ledge 13 in the hole and the groove To the end tabs of the base to align it with the transverse groove 14 of this ledge. After this spread, feet on the pedals at an angle in the opposite direction locks the new maximum, the length of the rod, as this locking tab 25 is in the transverse groove 14 and, resting his side in the groove and fixes the extension cable and the pedal spindle in the working position, and the focus of its end walls of the protrusions provide fixation rod length.

Then cranks sprocket 9 and the connecting rods of the actuator 180aboutto accommodate the second connecting rod in a vertical position and in accordance with the above technique performs an operation of extension of the second rod. Pedalium after transfer block and connecting rod to a new position in a known manner, only pedal while moving along the trajectory shown in Fig.1 in phantom line large diameter, as well as the torque on the axis of the actuator increases then almost doubled, overcoming the rise now possible with the same speed as on a horizontal stretch of road; the length of the rods in this position may be in the range of 340-360 mm for optimal bike "Maxi" or 280-300 mm in other embodiments, the ratio may remain constant or untrained cyclist to facilitate pedaliaceae with the number of teeth (Z=13 and 15-16).

Switching to the initial main mode of pedaling with the transition from climbing to the flat road or downhill cyclist produces the reverse sequence is also in motion: first, it shortens the length of the rods in the opposite elongation sequence rearranging the ledge 13 of the groove k in the groove 14 of the base, then, "relieving" the saddle to the weight of the foot on the bottom tube of the frame and slightly lifting arm saddle displays the end of the spacer 10 from the stop to the tooth portion 11 at the counter and moves it outside or on the periphery of this area, after which the unit under its own weight falls on the pipe 5.

Similarly regulate the torque on the bike "Maxi", shown in Fig.4 and 5. To increase the torque of the drive bike "Maxi", shown in Fig.9-11, there is no need to unload the saddle of body weight: enough, compressing the legs, to deploy the lever 30 ratchet wheel 29 at an angle of 180aboutin the position shown by the dashed lines in Fig.9. The cable 12, naratiwas on ratchet wheel will move the guide 19 up to the size of the groove 27, and the lever latch 32 will lock it in this position; the bolt 28 captures Dobby site with rods from provesti 36, move the extension 34 of the base 33 to align the lug 35 with a hole 37; ledge 35 under the action of the elastic plate is included hole 37 and record the new length of the rod. To install the original length of the rod to press a spring-loaded lever 32 from the ratchet wheel 29 and Dobby site under its own weight is lowered into the lower position, then pressing the protrusion 35 in the openings 37, turn down the extension to match the projection 35 with an opening 36 and continue on the flat road or downhill.

The best option run bike "Maxi" is a variant with caratoke-troso-ratchet block, as in this case, the maximum increase in torque due to the possibility of maximum elongation of the rod up to 360 mm; other options with rigid or flexible element provides the possibility of extension up to 280-300 mm Possible in these structures to obtain the extension rods to 340-360 mm and even more, however, the cyclist will have to take the lifts are not in the saddle and standing on the pedals. However, these efforts at the production structures are not effective and very tiring due to the duration of such pedaling associated with low speed rises from the nstruktsij speed is 2-3 times higher, and the fatigue would be correspondingly lower. Not tiring this mode of movement on the bike "Maxi" is because pedaling in this case it is possible to constructively with the same effort as when driving on production bikes on the plain.

Equivalent variants of the bike "Maxi" can be run as a combination of these options, additionally, it may have wheels of the same diameter (but probably in this case it is necessary to increase the base bike that is undesirable); with a folding frame or gear train (asterisks) on the hub of the leading wheel and gear shift, may have additional leading asterisks, disc wheels.

Caretake-troso-saddle (grupowy) mechanism can be applied in the construction of tricycles, especially passenger destination, as well as in the construction of rental with beamed frame design of synthetic composite material; it is possible to manufacture and use a bike with a rigid pin "high" Dobby unit in the designs of some of velomobiles, mopeds, etc.

A longitudinal groove for the cable can be made only in the front seat, the end upravlyaushih the axis of the saddle. The rods can be made with the possibility of fixing any of their length.

To reduce the weight of the bike "Maxi" his front seat tube can be provided with a longitudinal verterbrae middle parts and fairings to improve the aerodynamics of these design elements.

Technical and economic efficiency of this action is to facilitate pedaling when driving at high speeds on flat roads with maintaining this speed on hills.

1. Bike, containing frame, leading rear wheel freewheel and at least one driven sprocket, caretake-truck unit connected to the seat tube of the frame, the bar of the saddle and guide Dobby unit with the possibility of vertical movement, means fixing caretake-saddle block, pedal-and-rod drive, connected the leading asterisk through a flexible chain driven sprocket, a wheel connected to the fork of the front wheel diameter is less than the rear wheels, characterized in that, to improve operational properties of the bike by facilitating pedaling with a simultaneous increase in speed performance and expansion within regulirovaniya guide caretake-saddle block corresponds to the range of elongation of each of the rod, caretake-saddle block performed with separate tools fix from turning in the desired height position, each rod of the actuator is made of rigidly fixed at one end on the axis of the drive base of the rod and mounted on the base for movement and fixation in at least two extreme positions of extension cord with foot pedal at the free end, while the gear ratio of the drive and the diameter of the drive wheel is made such that provide step bike more 9,8 m

2. Bike under item 1, characterized in that the seat tube of the frame and located in her guide Dobby unit with saddle rack made of oval, for example, the major axis of the oval in the plane of symmetry of the bike, rail rack are connected by cable (flexible connection), on-axis saddle mounted articulated strut, the lower end of which is serrated horizontal frame tube, each ground rod is made with the holes in the tabs on the ends of the rod extension, and with a longitudinal and an associated transverse grooves for positioning and fixing of the extension in one of the positions, this sprocket drive made with cicatricosa fact, the spacer on the axle seat is made of elastic and spring-loaded to the rack.

4. Bike under item 1, characterized in that the guide Dobby unit and the front seat are interconnected rigid element (tube, rod) of circular cross section, the lower end of the seatpost tube is made a longitudinal groove for the ends of the clamping screw, rigidly fixed to the guide Dobby unit or connecting the node and the saddle element with the possibility of a fixed displacement of the groove, the front sector of the upper end of the element is made with a notched area in contact with the end of a spring-loaded lever-latch installed on a horizontal pipe frame, each rod includes a base, made with integral projections and the longitudinal and transverse grooves in the middle part of moving in the axial holes of the projections and the longitudinal groove of the rod extension performed with magnetic locking protrusion for engagement with the transverse groove sprocket drive is made with the number of teeth Z 99, led Z 13, and the driving wheel diameter 710 mm

5. Bike under item 1, characterized in that it is provided with a ratchet wheel with a drive wheel mounted on the bracket, close the m cable, one end connected with the ratchet wheel, when this guide Dobby unit is made with a longitudinal groove in which is placed with a possibility of free movement in the groove of the fixing screw is rigidly fixed on the lower end of the seat tube, a guide connected to the second end of the control wire passing through the completed joint groove of the rack saddles and seat tube, and each rod is made with a longitudinal slot and provided with a latch mounted on the end of this groove and constructed with a ledge at the ends of the extension box-shaped cross-section made under the tab latches corresponding holes, this sprocket drive is made with the number of teeth Z 99, led Z is not more than 15, and a driving wheel diameter of more than 710 mm

6. Bike under item 1, characterized in that the front seat tube of the frame and a rigid member caretake-saddle block is made of synthetic composite material with metal inserts (tips) at their ends.

 

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