TWI576273B - Braking energy storage device and bicycle with the device - Google Patents

Description

Brake energy storage device and bicycle with the same

The present invention relates to a brake energy storage device and a bicycle having the same, and particularly to a brake energy storage device for storing kinetic energy before the brake of the bicycle is stopped, and a bicycle having the same.

A bicycle is a vehicle that is driven by a human foot pedal. The foot is applied to the pedal of the bicycle, and then the chain is rotated. The chain drives the small sprocket, so that the linked wheel starts to rotate and can travel forward.

However, in the past when the bicycle was braking, the vehicle was still driven by the inertial motion, and when the brakes were not completely locked, the bicycle wheels continued to rotate until the vehicle was completely stopped. When the driver stepped on the pedal again, The stopped vehicle can continue to move forward. However, when braking, the wheel that continues to rotate before the vehicle stops is a waste of kinetic energy that is not needed. On the other hand, the bicycle that wants to stop the pedal to step on the pedal again to travel. In an instant, it is a relatively laborious action during the driving process of the bicycle.

Therefore, the problem that this case focuses on will be how to store the kinetic energy of the wheel that rotates while braking, and how to reduce the burden on the bicycle when the bicycle is stopped.

It is an object of the present invention to provide a brake energy storage device that can be stored in the kinetic energy of a bicycle before the brake is stopped.

Another object of the present invention is to provide a brake energy storage device that can provide stored brake kinetic energy to a stopped bicycle for travel.

It is still another object of the present invention to provide a bicycle that employs the brake energy storage device described above.

One embodiment of the present invention provides a brake energy storage device for providing a bicycle. The bicycle is driven by a kinetic energy, and the bicycle mainly includes a wheel set and a brake device. The wheel set is driven by the kinetic energy to drive the brake device. For stopping the bicycle, wherein the brake energy storage device mainly comprises a first gear, a second gear, a third gear, a fourth gear, a cross bar, a rotation locking component and an elastic reset module, the first gear When the braking device is driven, the rotating wheel group rotates in conjunction, when the rotating first gear contacts the second gear, the second gear is rotated by the first gear in rotation, and the horizontal bar is installed in the second The center of the shaft of the gear rotates synchronously with the second gear, wherein the surface of the cross bar is formed with a thread extending toward both ends of the cross bar, and a smooth surface formed at one end of the thread is formed, and the third gear is a rotating shaft The center is disposed at the other end of the crossbar facing the second gear, and rotates synchronously with the crossbar, and the rotation locking member is for restricting the rotation direction of the crossbar, when the rotary locking member is released Timing, the rotation direction limitation of the crossbar is released, the elastic reset module includes a guiding member, a moving member and an elastic member, the guiding member extends toward both ends of the crossbar, and the moving member has a limiting portion and moves The piece is formed with a perforation, the perforation is for the moving member to set the cross bar, and the surface of the perforation is formed with a thread, the thread is the thread of the bite bar, and the limiting portion is guided by the guiding member, so that the moving member faces the horizontal The rod moves in both directions and limits the rotation of the moving member, as well as the threading of the rotating crossbar The moving screw moves the moving member from one end of the crossbar toward the smooth surface, one end of the elastic member is limited to a predetermined position, and the other end is interfered by the displacement of the moving member, so that the elastic member is between the predetermined position and the moving member Deformation and maintenance, when the rotation direction restriction of the crossbar is released, the deformation of the elastic member is released, the moving member is forced away from the smooth surface and returned to the original position, and the thread of the crossbar is rotated by the screw of the moving member. When the crossbar is rotated, the fourth gear rotates when the crossbar is rotated by the moving member, and is rotated by the third gear in rotation, and the wheel set is driven by the rotating fourth gear.

Another embodiment of the present invention provides that a bicycle mainly includes a wheel set, a brake device, and a brake energy storage device as described above.

The invention utilizes that the brake of the bicycle has not been completely locked, and the wheel continues to rotate until the vehicle is completely stopped, and the original shape of the elastic member is changed by the kinetic energy of the rotation of the wheel, so that the kinetic energy of the continuous rotation of the wheel is added and stored, and then borrowed. The elastic force generated when the original shape is restored by the elastic member releases the stored kinetic energy and forces the stopped vehicle to move forward, so that when the driving desire is to travel again, it is not necessary to step on it again to reduce the driving burden.

1‧‧‧ wheel set

2‧‧‧ brake device

3‧‧‧Brake energy storage device

31‧‧‧First gear

32‧‧‧second gear

33‧‧‧ Third gear

34‧‧‧fourth gear

35‧‧‧cross bar

350‧‧‧ thread

351‧‧‧ smooth surface

36‧‧‧Rotary locking assembly

361‧‧‧Wedge Limit

362‧‧‧stop wheel

37‧‧‧Elastic reset module

371‧‧‧Guide

372‧‧‧Mobile parts

373, 373’, 373” ‧ ‧ elastic parts

374‧‧‧ Ontology

375‧‧‧ guiding slot

376‧‧‧ thread

377‧‧‧Perforation

378‧‧‧stops

378’‧‧‧Fixed parts

370‧‧‧Carmen

375’‧‧‧ Guide Card

370’‧‧‧ Groove

30‧‧‧Shell

1 is a schematic view of a bicycle having a brake energy storage device according to an embodiment of the present invention; FIG. 2 is a front cross-sectional view of the brake energy storage device of FIG. 1; and FIG. 3 is a gear stop and wedge type of the brake energy storage device of FIG. a side cross-sectional view of the restricting portion; FIG. 4 is a side cross-sectional view of the moving member of the brake energy storage device of FIG. 2; 5 is a front cross-sectional view of a brake energy storage device according to another embodiment of the present invention; FIG. 6 is a side cross-sectional view of the moving member of the brake energy storage device of FIG. 5; FIG. 7 is a further embodiment of the present invention; A front cross-sectional view of the brake energy storage device; and FIG. 8 is a front cross-sectional view of the brake energy storage device according to still another embodiment of the present invention.

1 is a brake energy storage device according to an embodiment of the present invention. The brake energy storage device is provided on a bicycle, wherein the bicycle can be driven forward by the driver's application of pedal kinetic energy to the kinetic energy of the pedal. The bicycle is mainly driven. The wheel set 1, the brake device 2 and the brake energy storage device 3 are included, wherein the wheel set 1 is driven by the kinetic energy of the driver to apply the pedal, and the brake device 2 is for stopping the bicycle forward, and the brake energy storage device 3 In this example, the first gear 31, the second gear 32, the third gear 33, the fourth gear 34, the crossbar 35, the rotation locking assembly 36 and the elastic reset module 37 are included, wherein the first gear 31 is in this example It is driven by the brake device, for example, the first gear 31 is linked by the brake line. Therefore, when the brake device is driven, the first gear 31 can be protruded toward the second gear 32, and the wheel group 1 is continuously decelerated by the bicycle. The rotation causes the first gear 31 to be rotated in conjunction with the rotating wheel set 1.

When the rotating first gear 31 contacts the second gear 32, the second gear 32 is rotated by the first gear 31 in rotation, and the crossbar 35 is installed at the center of the rotating shaft of the second gear 32, and Rotating in synchronization with the second gear 32, and forming a surface of the crossbar 35 extending toward both ends of the crossbar 35 a thread 350, and a smooth surface 351 formed at one of the ends of the thread 350. The third gear 33 is disposed at the center of the shaft at the other end of the crossbar 35 toward the second gear 32, and the crossbar 35 Synchronous rotation, as shown in FIG. 2 together, the rotation locking assembly 36 includes a gear wheel 362 and a wedge limiting portion 361 in this example, as shown in FIG. 3, wherein the gear wheel 362 is interlocked with the cross bar 35. Rotating, and the beveled portion of the wedge-shaped restricting portion 361 is a tread for contacting the stopper wheel 362, and the stopper wheel 362 is limited by the degree of contact of the wedge-shaped restricting portion 361, so that the different rotation directions of the stopper wheel 362 are caused. Each has a different coefficient of friction, so that the direction of rotation of the stop wheel 362 is limited and can only be rotated in a single direction with a lower friction coefficient.

The elastic reset module 37 includes a guiding member 371, a moving member 372 and an elastic member 373. The guiding member 371 extends toward both ends of the crossbar 35. Referring to FIG. 4 together, the moving member 372 has a limiting portion. And a through hole 377 is formed in the center of the moving member 372. The through hole 377 is a sleeve 35 for the moving member 372, and a thread 376 is formed on the surface of the hole 377, and the thread 376 is engaged by the thread 376. Thread 350, in this example, guide 371 includes a body 374, wherein body 374 can be exemplified as housing 30 of brake energy storage device 3, and a guide groove 375 is formed in the surface of body 374 toward the crossbar 35. The guiding slot 375 extends toward both ends of the crossbar 35, and the moving member 372 has a limiting portion. In this example, the limiting portion includes a latch 370 for inserting into the guiding slot. 375, the moving 372 pieces of the latch 370 are moved according to the guiding direction of the guiding slot 375. When the crossbar 35 is rotating, the moving member 372 screwed to the crossbar 35 is restricted by the guiding member 371, so as to move The member 372 can only move toward both ends of the cross bar 35 and restrict the rotation of the moving member 372 since the cross bar 35 is rotating Meanwhile, the thread 35 of the cross bar 350 rotating thread 376, so that rotation of the moving member 372 is restricted to rotating mating threads 350, forcing The moving member 372 is displaced from one end of the crossbar 35 toward the other end until the moving member 372 moves to the smoothing section 351, and the thread 376 of the moving member 372 is no longer rotated by the thread 350, so that the moving member 372 stops displacement.

In this example, the elastic member 373 is, for example, a spring and has two ends, one end of which is constrained to a predetermined position, and the other end is displaced by the displacement of the moving member 372. In this example, the predetermined position is in the housing. The position of the third gear 33 is close to 30, and the elastic reset module 37 further includes a stopper 378 which is disposed at a predetermined position and is disposed at the other end of the elastic member 373 by the displacement of the moving member 372. When the spring is moved When the member 372 is displaced, a reverse force is applied to force the elastic member 373 to be compressively deformed between the stopper 378 and the moving member 372. Since the rotation locking member 36 limits the rotation direction of the crossbar 35, the moving member 372 is caused. It is maintained at the smooth section 351 of the crossbar 35.

When the driver is ready to move forward, the wedge-shaped restricting portion 361 can be triggered to release the contact with the shifting wheel 362. For example, if the pedal is repeatedly triggered by the pedal, or the interlocking trigger is released when the brake is released, the shifting wheel can be simultaneously released. The rotation direction of the 362 is restricted, so that the crossbar 35 interlocked with the stopper wheel 362 is also released from the rotation direction restriction, so that the elastic member 373 is released from the compression deformation, and the rebound force will push against the moving member 373 toward the stopper. The other direction of 378 moves and forces the moving member 372 to return to the original position. At the same time of returning, the thread 350 of the crossbar 35 is rotated by the thread 376 of the moving member 372 to rotate the cross bar 35 in the other direction. The gear 34 is rotated in conjunction with the third gear 33 that rotates synchronously. The fourth gear 34 can be designed to be triggered, for example, by a pedal pedal again, or when the brake is released, so that the triggered fourth gear 34 is in contact with the rotation. The third gear 33 causes the fourth gear 34 to rotate in conjunction, while the wheel set 1 is driven by the fourth gear 34, so that the wheel set 1 is rotated by the fourth gear 34, so that the bicycle is subjected to pedaling by a non-driver. kinetic energy It is driven forward.

Of course, it can also be designed that the fourth gear 34 can only drive the wheel set 1 only by one-way rotation. Therefore, the fourth gear 34 can continuously contact and rotate with the third gear 33, only in the other direction of the cross bar 35. When rotating, the direction in which the fourth gear 34 rotates can drive the wheel set 1, and the fourth gear 34 drives the wheel set 1, and can also directly rotate the bicycle front or rear gear that is moved by the chain, and then Indirectly affect the wheel set 1 so that the bicycle is moving forward.

On the other hand, for a person skilled in the art, the predetermined position can also be defined as a position in the casing 30 close to the second gear 32, while changing the direction in which the moving member 372 moves, and also forcing the elastic member 373 to block. The purpose of compression deformation between the stopper 378 and the moving member 372.

FIG. 5 and FIG. 6 are schematic diagrams showing a brake energy storage device according to another embodiment of the present invention. In this example, the elastic reset module 37 further includes a fixing member 378' and is disposed at a predetermined position. The predetermined position is close to the second gear 32. The fixing member 378' is disposed at one end of the elastic member 373. When the other end of the elastic member 373 is displaced by the moving member 372, a reverse force is applied to force the elastic member to be fixed. The 378' and the moving member 372 are extended and deformed. When the driver is ready to move forward and the crossbar 35 is simultaneously released from the rotation direction limitation, the elastic member 373 is released from the maintenance of the extension deformation, and the pulling force is pulled. The moving member 373 moves toward the fixing member 378'.

In addition, the guiding member 371 of the present embodiment has a guiding latch 375' in the direction of the crossbar 35 of the body 374', and extends toward both ends of the crossbar 35, and the limiting portion of the moving member 372 is formed with a limiting portion. The groove 370' is inserted into the guide cassette 375' so that the moving member 372 is moved by the groove 370' according to the guiding direction of the guide cassette 375', and the rotation of the moving member 372 is restricted.

On the other hand, for those skilled in the art, the predetermined position may also be defined as a position in the casing 30 close to the third gear 33, and at the same time The direction in which the moving member 372 moves can also be achieved by forcing the elastic member 373 to be deformed and deformed between the fixing member 378' and the moving member 372.

The elastic member of the elastic reset module of the brake energy storage device of the present invention may also be as shown in FIG. 7. In this example, the elastic member 373' is exemplified as a resilient slingshot, and one end of the bow is disposed on the moving member. 372, one end of the string is disposed on the fixing member 378', and the pulling force is pulled back by the force of the slingshot being stretched and deformed toward the fixing member 378'. Alternatively, as shown in FIG. 8, the elastic member 373" may also be exemplified as an elastic coil having elasticity, and the body end of the elastic coil is disposed on the fixing member 378', and the coil end is disposed on the moving member 372, and The pulling movement member 372 can be moved in the direction of the fixing member 378' by the force pulled back by the elastic coil.

For those skilled in the art, one end of the bow of the aforementioned slingshot may be instead disposed on the fixing member 378', and one end of the string is instead disposed on the moving member 372, and the body end of the aforementioned elastic coil may be changed to It is disposed on the moving member 372, and the coil end is disposed on the fixing member 378', which can achieve the same purpose.

The invention utilizes that the brake of the bicycle has not been completely locked, and the wheel continues to rotate until the vehicle is completely stopped, and the kinetic energy of the wheel is used to drive the brake energy storage device, so that the elastic member of the brake energy storage device is forced to change shape, thereby storing The kinetic energy of the original wheel when the wheel continues to rotate, when the driving desire to move forward again, the deformation restriction of the elastic member can be released, the stored kinetic energy is released, and the wheel that stops the rotation is forced to rotate again, so when the driving desires to travel again , you can eliminate the need to step on again to reduce the burden of driving.

31‧‧‧First gear

32‧‧‧second gear

33‧‧‧ Third gear

34‧‧‧fourth gear

35‧‧‧cross bar

350‧‧‧ thread

351‧‧‧ smooth surface

36‧‧‧Rotary locking assembly

361‧‧‧Wedge Limit

362‧‧‧stop wheel

37‧‧‧Elastic reset module

371‧‧‧Guide

372‧‧‧Mobile parts

373‧‧‧Flexible parts

374‧‧‧ Ontology

375‧‧‧ guiding slot

378‧‧‧stops

370‧‧‧Carmen

30‧‧‧Shell

Claims (10)

A brake energy storage device is provided for a bicycle, the bicycle is driven by a kinetic energy, and the bicycle mainly comprises a wheel set and a brake device, and the wheel set is driven by the kinetic energy, and the brake device is provided for Stopping the bicycle forward, wherein the brake energy storage device mainly comprises: a first gear, the first gear is rotated when the brake device is driven, and the second gear is rotated When the first gear contacts the second gear, the second gear is rotated by the first gear in rotation; a cross bar is disposed at a center of the rotating shaft of the second gear, and the first gear The two gears rotate synchronously, wherein a surface of the cross bar is formed with a thread extending toward both ends of the cross bar, and a smooth surface formed at one end of the thread extending; a third gear, the third gear train Positioning the shaft center at the other end of the crossbar toward the second gear, rotating synchronously with the crossbar; a rotary locking assembly for limiting the direction of rotation of the crossbar when When the lock lock is unlocked, the rotation direction restriction of the crossbar is released; an elastic reset module includes: a guide member extending toward both ends of the crossbar; and a moving member, the movement The workpiece has a limiting portion, and the moving member is formed with a through hole for the moving member to sleeve the cross bar, and the surface of the through hole is formed with a thread that engages the thread of the cross bar. The limiting portion is guided by the guiding member to move the moving member toward both ends of the crossbar, and restricts rotation of the moving member, and the rotating crossbar The thread rotates the screw to displace the moving member from one end of the crossbar toward the smooth surface; and an elastic member, one end of the elastic member is limited to a predetermined position, and the other end is interfered by the displacement of the moving member And deforming and maintaining the elastic member between the predetermined position and the moving member. When the rotation direction restriction of the crossbar is released, the deformation of the elastic member is released, and the moving member is forced away from the smooth surface. Returning to the original position, and rotating the thread of the crossbar by the screw of the moving member to rotate the crossbar; and a fourth gear, the fourth gear is rotated by the moving member When rotating, the third gear is rotated in rotation, and the wheel set is driven by the rotating fourth gear. The brake energy storage device of claim 1, wherein the rotation locking assembly comprises: a first stop wheel that rotates in conjunction with the cross bar; and a wedge type restriction portion for contacting the The shifting wheel limits the rotation direction of the shifting wheel, and when the wedge-shaped restricting portion releases the contact with the retaining wheel, the rotational direction restriction of the retaining wheel is released. The brake energy storage device of claim 1, wherein the elastic reset module further comprises a stop member disposed at the predetermined position, the stop member being disposed at one end of the elastic member, when When the other end of the elastic member is pressed by the displacement of the moving member, a reverse force is applied to force the elastic member to be compressively deformed between the stopper and the moving member, and when the deformation maintained by the elastic member is released, The moving member is moved in the other direction of the stopper. The brake energy storage device of claim 1, wherein the elastic reset module further comprises a fixing member disposed at the predetermined position, the fixing member is provided for one end of the elastic member, and the elastic member is When the other end is pulled by the displacement of the moving member, a reverse force is provided to force the elastic member to be extended and deformed between the fixing member and the moving member, and to lift the movement when the deformation maintained by the elastic member is released. The piece moves in the direction of the fixing member. The brake energy storage device of claim 1, wherein the guiding member comprises a body, and a guiding groove is formed, the guiding groove extends toward both ends of the cross bar, and the limiting portion comprises a The cassette is adapted to be inserted into the guiding slot, so that the moving member is moved by the locking direction according to the guiding direction of the guiding slot, and the rotation of the moving member is restricted. The brake energy storage device of claim 1, wherein the guiding member comprises a body, and a guiding clip is formed, the guiding groove extends toward both ends of the cross bar, and the limiting portion is formed. There is a groove for the guide card to be inserted, so that the moving member is moved by the groove according to the guiding direction of the guiding cassette, and the rotation of the moving member is restricted. The brake energy storage device of claim 1, wherein the elastic member is a set of springs. The brake energy storage device of claim 1, wherein the elastic member is a set of elastic bows. The brake energy storage device according to claim 1, wherein the elastic member A set of elastic coils. A bicycle having a brake energy storage device, the bicycle is driven by a kinetic energy, the bicycle mainly comprising: a wheel set, the wheel set is driven to rotate by the kinetic energy; and a brake device for stopping the bicycle to advance a brake energy storage device comprising a first gear, the first gear is rotated by the rotating wheel set when the braking device is driven; a second gear, when the rotating first gear When the second gear is contacted, the second gear is rotated by the first gear in rotation; a crossbar is mounted at a center of the rotating shaft of the second gear, and rotates synchronously with the second gear, wherein The surface of the crossbar is formed with a thread extending toward both ends of the crossbar, and a smooth surface formed at one end of the thread extending; a third gear, the third gear train is disposed at the center of the rotating shaft a crossbar facing the other end of the second gear, rotating synchronously with the crossbar; a rotary locking assembly for limiting the direction of rotation of the crossbar when the rotary lock is unlocked The elastic resetting module includes: a guiding member extending toward both ends of the crossbar; and a moving member having a limiting portion And the moving member is formed with a through hole, the through hole is provided for the moving member, and the surface of the through hole is formed with a thread, the thread is engaged with the thread of the cross bar, and the limiting portion is subjected to Guide of the guide to make the movement Moving toward both ends of the crossbar and restricting rotation of the moving member, and rotating the thread of the crossbar to rotate the thread to displace the moving member from one end of the crossbar toward the other end; and an elastic One end of the elastic member is limited to a predetermined position, and the other end is interfered by the displacement of the moving member, so that the elastic member is deformed and maintained between the predetermined position and the moving member, when the rotating direction of the crossbar When the restriction is released, the deformation of the elastic member is released, the moving member is forced away from the smooth surface and returned to the original position, and the thread of the crossbar is rotated by the screw of the moving member to interlock the horizontal a rotation of the rod; and a fourth gear, when the crossbar is rotated by the moving member, is rotated by the third gear in rotation, and is driven by the rotating fourth gear Wheel set.