CN2799373Y

CN2799373Y - Reciprocating swing speed-changeable bicycle driving device

Info

Publication number: CN2799373Y
Application number: CNU2005201225314U
Authority: CN
Inventors: 胡晨旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-09
Filing date: 2004-09-09
Publication date: 2006-07-26
Anticipated expiration: 2014-09-09

Abstract

The utility model relates to a reciprocating swing variable velocity bicycle driving device which comprises two swing arms with foot pedals, and each swing arm is hinged with a pull rod, the other end of which is connected with a turning chain by a triaxial connecting piece. Two turning chains are engaged with a forward homolateral turning chain wheel and a one-way clutch of the homolateral chain wheel on a rearward centre shaft. The main chain wheel is connected to the centre shaft in the mode of synchronous rotation. Force is transmitted to a rear wheel of a bicycle by the main chain wheel through a driving chain. Meanwhile, a return device which is composed of gears causes the two swing arms only to do swing in an opposite direction simultaneously. The positions of hinge points of the pull rods on the swing arms are changed so as to realize variable velocity.

Description

A kind of reciprocally swinging variable-ratio bicycle driving device

Technical field

The present invention relates to the bicycle driving device, relate in particular to the main rod member bicycle driving device that scrunches of physical pendulum flowing mode in the past that drives.

Background technology

Known main the rod member low seat bicycle that scrunches of physical pendulum flowing mode such as the utility model " room formula bicycle " of application number 99213324.6 in the past of driving, still lack adaptive with it variable speed drive device simple in structure, known in addition Collapsible bicycle is how folding with middle part bending or front and back contraction mode, relate to that saddle shrinks, handle is folding etc., make folding process complicated, can not form the two steamboats parallel preceding upper end that lands in posterior end after folding and pull the portable mode that drags.

Summary of the invention

The purpose of this invention is to provide a kind of leading and drive the rod member variable-ratio bicycle driving device simple in structure that scrunches of physical pendulum flowing mode in the past, and make this actuating device can be fit to have to form after can be than simple motion folding and folding posterior end two steamboats are parallel land before the upper end pull two steering front wheel tricycles of the fold mechanism of the portable mode that drags.

The object of the present invention is achieved like this: be provided with one and back and forth scrunch actuating device, comprise two swing arms that have pedal that are hinged on two sides of underframe front portion and can do the swing of fore-and-aft direction effective angle, all be hinged with a pull bar in the every swing arm in the variable mode of hinge-point, the other end of every pull bar all with one three shaft coupling piece of homonymy to go up axle hinged, two revolution chains connect the front axle of a side three shaft coupling pieces separately, the engagement process is installed in the homonymy revolution sprocket wheel in pull bar action radius the place ahead of underframe, mesh the sprocket wheel free-wheel clutch of homonymy on the axis that passes through the pull bar action radius rear that is installed in underframe again, rear axle with three shaft coupling pieces is connected again, head sprocket is connected on the axis in the mode that can rotate synchronously, head sprocket is passed to trailing wheel by messenger chain with power, simultaneously between two lower ends of two swing arms or be connected with a return mechanism that is made of gear between two revolution sprocket wheels and make two swing arms can only do rightabout swing simultaneously, but described pull bar is by selectively making hinged a realization in being fixedly hinged a little more than two in pull bar and the swing arm with the hinged of hinge-point evolutionary mode in swing arm.

The connection mode that can rotate synchronously of described head sprocket and axis is to realize by a pair of gear and internally toothed annulus ingear power-transfer clutch, the hinge page or leaf that a pair of upper end has vertical bearing pin lower end to lock is set between underframe and rear wheel frame simultaneously, back hinge page or leaf and rear wheel frame fuse, there is a horizontal bearing pin junction of preceding hinge page or leaf and underframe, the rear wheel frame of head sprocket and installation head sprocket can be not less than 90 ° rotation around the vertical bearing pin that is in the axis top, separation simultaneously or engaging gear and internally toothed annulus power-transfer clutch in rotary course, when gear separates with internally toothed annulus, continue to prolong hand of rotation trailing wheel is equalized, 2 half amount to and to form the dragged portable state that lower end two steamboats land what have front and back wheel respectively around horizontal bearing pin then.

Because that has adopted that the hinged pull bar of double-pendulum arms connects two revolution chains again back and forth scrunches actuating device, select the hinge-point of pull bar diverse location in swing arm, can obtain different speed ratios, and owing to be provided with power-transfer clutch between axis and head sprocket and the two rotating shaft folding hinges between underframe and rear wheel frame, can be folded into the portable mode that drags that two steamboats walk abreast and land by the tricycle that simple action will be equipped with this actuating device.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is a lateral plan of the present invention.

Fig. 2 is a birds-eye view of the present invention.

Fig. 3-A and Fig. 3-B are the backsight and the birds-eye vieies of control rod double steering hardware of the present invention.

Fig. 4-A and Fig. 4-B are analysing and observe of front-wheel steering of the present invention and stop mechanism and lateral plan.

Fig. 5-A and Fig. 5-B are the cutaway view and the lateral plans of separable transmission axis of the present invention.

Fig. 6 is the use scheme drawing of embodiments of the invention.

1. underframe, 2. rear wheel frames, 3. trailing wheels, 4. seats, 5. front wheel carriers, 6. front-wheels, 7. splicing sleeves, 8. bolsters, 9. control sticks, 10. kinematic links, 11. direction pivoted arms, 12. synchronising (connecting) rods, 13. d-axis, 14. end arms, 15. tubular supports, 16. steering spindles, 17. front wheel shaft 18. damping chip brakes 19. damping fins 20. swing arm seats 21. swing arms 22. stops 23. pull bars 24. 3 shaft coupling pieces 25. revolution chains 26. revolution sprocket wheels 27. axis 28. sprocket wheel one-way clutch 29. head sprockets 30. driving-chains 31. return mechanisms 32. gears 33. ring gears 34. vertical bearing pin 35. rear hinge page or leaf 36. front hinge page or leaf 37. horizontal bearing pin 38. hoist cables 39. locking pins 40. folding connecting rods 41. control cranks 42. suspension rods among the figure

The specific embodiment

At Fig. 1, Fig. 2, in Fig. 3 and the steering swivel system shown in Figure 4, underframe (1) is being arranged, the rear wheel frame that trailing wheel (3) are housed (2) that is connected with underframe, be installed in the seat (4) on the rear wheel frame, one be connected underframe anterior and about have respectively that crosswise fixed connects a supporting sleeve (7) on the underframe of tricycle of front wheel carrier (5) of a front-wheel that can turn to (6), be installed with two of can in supporting sleeve, rotate in the supporting sleeve and pass the bolster (8) of supporting sleeve and K/UP, two ends of bolster are hinged by the center of oscillation of bearing and two one control levers (9), make that two one control levers can be to swing before and after center of oscillation is done, the lower end of every one control lever all has the hinge of two degree of freedom and a kinematic link (10) hinged by one, the other end of kinematic link also has the hinge of two degree of freedom to be hinged on a inner that is fixed on the direction pivoted arm (11) on the front-wheel steering axle by one, the front end of two direction pivoted arms is hinged with two ends of a synchronising (connecting) rod (12) respectively, the equidirectional left rotation and right rotation of crop rotation before the upper end of two joysticks is done that fore-and-aft direction is reverse can make two when mobile, when the axial line of the axle center of two front-wheels, two joystick lower ends during and supporting sleeve in the craspedodrome direction on same straight line, pull simultaneously two one control levers forward or backward, can make two one control levers do to rotate forward or backward around the supporting sleeve axial line simultaneously, in Fig. 3, bolster has the end arm (14) of square hole to form by d-axis (13) and two lower ends of two side's of having bodies, the contact position of end arm and supporting sleeve accompanies damping fin, and the nut that turns d-axis two ends can be regulated the damping that two one control levers are pulled in the while front and back.As shown in Figure 4, front-wheel that can turn to and brake equipment thereof comprise two be fixedly connected on its outside of two sides about front wheel carrier have two ends of opening be equipped with bearing carrier ring tubular support (15), the steering shaft (16) that two ends are equipped with axle journal passes tubular support and becomes rotatable rolling cooperation with tubular support by two groups of ball-collecting racks up and down, the opening that preceding wheel shaft (17) passes on the tubular support is fastenedly connected on steering shaft, front-wheel (6) by bearing installation on preceding wheel shaft, direction pivoted arm (11) is fixedly connected on the steering shaft (16), damping chip drg (18) is installed on the steering shaft, contacts with the radially inner side of front-wheel hub by damping fin (19) and realizes brake.

In actuating device illustrated in figures 1 and 2, the underframe front portion is equipped with (20) two of swing arm seats can make two sides that the swing arm that has pedal (21) of fore-and-aft direction swing is hinged on the swing arm seat, the lower end of swing arm is with a limiting device (22) and is used for limiting the limit position of moving before and after the swing arm, all be hinged with a pull bar (23) in the every swing arm, the other end of every pull bar all with one three shaft coupling piece (24) of homonymy to go up axle hinged, two revolution chains (25) connect the front axle of a side three shaft coupling pieces separately, the engagement process is installed in the homonymy revolution sprocket wheel (26) in pull bar action radius the place ahead of underframe, mesh the axis (27) that passes through the pull bar action radius rear that is installed in underframe again and go up the sprocket wheel free-wheel clutch (28) of homonymy, rear axle with three shaft coupling pieces is connected again, head sprocket (29) is connected on the axis in the mode that can rotate synchronously, head sprocket is passed to trailing wheel (3) by messenger chain (30) with power, is connected with a return mechanism that is made of two straight gears (31) simultaneously between the revolution sprocket wheel of dislocation before and after two and makes two swing arms can only do rightabout swing simultaneously.Return mechanism also can be arranged on promptly to tighten in the axle center, lower end of each swing arm between the lower end of two swing arms and connect a bevel gear sheet and a horizontal bevel gear sheet that is engaged with is set between these two vertically arranged bevel gear sheets.By selecting pull bar can obtain different speed ratios in the position of swing arm upper link point, the sprocket wheel free-wheel clutch is converted to the crank motion of two revolution chains the unidirectional rotation of head sprocket, two groups of revolution chain and sprocket free-wheel clutchs combination simultaneously can adapt to the variation that causes the stroke terminal of pull bar owing to gear ratio change, can regulate the limit position of moving before and after the swing arm by the governing screw of regulating the limiting device front and back end, the length that changes the position of swing arm seat on underframe and two pull bars can be fit to the long needs of different legs.

Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and embodiment shown in Figure 6 are the two steering front wheel Foldable cellular tricycles of a kind of control rod double, comprise underframe (1), rear wheel frame (2), trailing wheel (3), seat (4), front wheel carrier (5), front-wheel (6), steering hardware, actuating device, brake equipment and fold mechanism, because the downside rod member of underframe is to be subjected to pulling force, thinner suspension rod (42) is set with expendable weight, the front and back end of front wheel carrier links to each other with underframe in the pivotally attached mode, provide the user when turning round, to obtain centripetal force with the degree of dip of health adjusting car back segment, axial contact position at underframe and front wheel carrier is lined with the damping pad, the suitable damping that nut by two jointed shafts before and after regulating can obtain underframe when swinging with respect to front wheel carrier, the front and back end of front wheel carrier and underframe hinged place respectively are provided with two pairs of standby screws simultaneously, the user is can be as required hinged or be fixedly connected on the front wheel carrier with underframe, and back of seat protrudes forward to press close to the spinal column line with respect to human body waist place.Be connected with internally toothed annulus (33) ingear power-transfer clutch by a pair of gear (32) between head sprocket (29) and the axis (27), the hinge page or leaf that simultaneously between underframe and rear wheel frame, has a pair of upper end to have vertical bearing pin (34) lower end to lock, back hinge page or leaf (35) fuses with rear wheel frame, preceding hinge page or leaf (36) has a horizontal bearing pin (37) with the junction of underframe, the rear wheel frame of head sprocket and installation head sprocket can be not less than 90 ° rotation, separation simultaneously or engaging gear and internally toothed annulus power-transfer clutch in rotary course around the vertical bearing pin (34) that is in the axis top.During folding, having strained hoist cable (38) when putting down the chair back makes locking pin (39) unlatching of hinge lower end that two gears of return mechanism (31) are separated, pulling rear wheel frame can make gear (32) separate with internally toothed annulus (33), continuing to prolong hand of rotation equalizes trailing wheel, then around horizontal bearing pin (37) with 2 half amounting to of having front and back wheel respectively, hinge page or leaf (36) drive folding connecting rod (40) moves forward two swing arms is set level in limiting device (22) rotation before when amounting to, and two bar handles (41) inwardly is reversed into the handle shape again and just can forms the dragged portable state that lower end two steamboats land.

Claims

1. a reciprocally swinging variable-ratio bicycle driving device is characterized in that: comprise that two are hinged on the swing arm that has pedal that anterior two sides of cycle frame can be done the swing of fore-and-aft direction effective angle, all be hinged with a pull bar in the every swing arm in the variable mode of hinge-point, the other end of every pull bar all with one three shaft coupling piece of homonymy to go up axle hinged, two revolution chains connect the front axle of a side three shaft coupling pieces separately, the engagement process is installed in the homonymy revolution sprocket wheel in pull bar action radius the place ahead of cycle frame, mesh the homonymy sprocket wheel free-wheel clutch on the axis that passes through the pull bar action radius rear that is installed in cycle frame again, rear axle with three shaft coupling pieces is connected again, head sprocket is connected on the axis in the mode that can rotate synchronously, head sprocket is passed to bicycle rear by messenger chain with power, simultaneously between two lower ends of two swing arms or be connected with a return mechanism that is made of gear between two revolution sprocket wheels and make two swing arms can only do rightabout swing simultaneously.

2. a kind of bicycle driving device according to claim 1 is characterized in that: but described pull bar is by selectively making hinged a realization in being fixedly hinged a little more than two in pull bar and the swing arm with the hinged of hinge-point evolutionary mode in swing arm.

3. a kind of bicycle driving device according to claim 1 is characterized in that: the connection mode that can rotate synchronously of described head sprocket and axis is to realize by a pair of gear and internally toothed annulus ingear power-transfer clutch, and head sprocket and the rear wheel frame that head sprocket is installed can be not less than 90 ° rotation, separation simultaneously or engaging gear and internally toothed annulus power-transfer clutch in rotary course around the pivot center that is in axis top.