TWM551154U - Folding bicycle structure featuring easy towing - Google Patents

Description

Folding bicycle structure that can be easily towed

This creation is about a folding bicycle structure that can be easily towed, especially a folding bicycle that can be easily towed and saved in parking space.

According to the conventional folding structure of the bicycle, comprising: a horizontal tube 11 provided with a first folding device 14 to form a front horizontal tube 12 and a rear horizontal tube 13, the first folding device 14 is connected to the a front cross tube 12 and a rear cross tube 13; the front end of the front cross tube 12 is connected to a head tube 15, and the rear end portion of the rear horizontal tube 13 is connected to a tube 16, a tripod 17 is disposed below the seat tube 16; a fork 20, pivoted to the head tube 15, the upper end of the head tube 15 is connected to a handle tube 23 by a second folding device 22; and a rear wheel 24 having a rear wheel 25 is connected to the seat tube 16; The structure, after the folding bicycle 10 is finished riding, the handle tube 23 can be folded close to the front wheel 21 by loosening the two folding devices, and the front horizontal tube 12 is folded in half to make the front wheel 21 close to the rear. The wheel 25, thereby reducing the volume to facilitate the folding and placement, and reducing the space occupation; however, the above structure actually has the following problems:

1. The folding bicycle 10 provides a long distance movement, but is not suitable for indoor use, especially when using a bicycle to move to a destination, such as a MRT, an airport, a station, a store, a shopping mall, an office building, etc. In the non-riding area, since these places cannot ride bicycles, and the folding bicycle 10 usually has a small body and is easily stolen when parked outside, the best way to prevent theft is to use the hand in the non-riding area. Carrying the move together, but especially unfolded The bicycle occupies a large volume, and it is not very convenient to move in a crowded room; if the folding bicycle 10 is folded, it is inconvenient to carry out by hand, and it is quite laborious to lift the mobile bicycle by hand.

2. Using the above-mentioned folding method to lift the hand by hand, although the length of the bicycle can be reduced, the width of the bicycle is increased, and when the user moves, it is very easy to rub to other pedestrians, and when carrying the bicycle for mass transportation, Bicycles also take up the width of the walkway.

3. As shown in Fig. 2, if the folding bicycle 10 is carried indoors, although the folding body can be folded to reduce the size of the bicycle body, in a limited indoor space, there is not much space for parking the bicycle, the foot Although the frame 17 allows the folding bicycle 10 to stand and rest against the wall 2, the number of the space 1 in which the folding bicycle 10 can be parked is still quite limited.

In view of this, how to make the folding bicycle 10 have better carrying functions and reduce the occupation of parking space is necessary for improvement. For this reason, the creator painstakingly studied and used the accumulated professional knowledge, technology, and experience to continuously improve and develop, thus creating the creation.

The main purpose of the present invention is to solve the above problems, and to provide a folding bicycle structure that can be easily towed. The main technology and purpose is to provide a wheel frame with two auxiliary wheels after the folding bicycle, and is provided on the horizontal pipe. Pulling the rod, thereby pulling up the pull rod to make the rear wheel of the folding bicycle stand upright for support, and the two auxiliary wheels can be dragged to the ground by the folding bicycle, and when the vehicle is parked, the rear wheel and the two auxiliary wheels provide support and erect The folding bicycle can reduce the space occupied by the parking, thereby increasing the number of parking.

According to the above purpose of the present creation, a folding bicycle that can be easily towed is provided. The structure comprises: a horizontal tube, a first turning device and a second turning device, wherein the horizontal tube forms a front horizontal tube, a middle horizontal tube and a rear horizontal tube, and the first folding device connects the front horizontal tube a tube and a middle cross tube, the second folding device is connected to the middle horizontal tube and the rear horizontal tube; the front end of the front horizontal tube is connected with a head tube, and the rear end of the rear horizontal tube is connected with a tube, and a tripod is arranged below the seat tube; The utility model has a front wheel front fork, the pivot group is disposed on the head pipe, the upper end of the head pipe is connected with a handle pipe by a third turning device; a rear wheel having a rear wheel is connected to the seat pipe; and a wheel frame is disposed on the rear fork And an axle of the rear wheel, the wheel frame is respectively provided with an auxiliary wheel on both sides of one end of the rear fork; and a pull rod is disposed on the first corner of the top of the horizontal pipe.

In an embodiment of the present invention, the other end of the tie rod is provided with a cross bar in a T shape.

In an embodiment of the present invention, the first flipper has a pivoting piece fixed to the front horizontal pipe and a pivoting piece fixed to the middle horizontal pipe, and the front of the front pivoting piece is pivoted a movable card mast, the pull rod is pivotally disposed on the rear pivoting piece, and a pair of latching slots of the movable latching lever are recessed at the bottom of the pulling rod, and the pulling rod can fasten the front pivoting piece and the rear pivoting piece, The movable card mast can be brought against the side of the card slot.

In an embodiment of the present invention, the two ends of the crossbar are pivotally assembled with a pull ring.

In an embodiment of the present invention, the pull ring may be fastened to the upper edge of the rear pivot piece by the pull rod.

In an embodiment of the present invention, the wheel frame is composed of a metal rod welding.

In an embodiment of the present invention, the wheel carrier adds a pivotable support frame to the axis of the rear wheel.

With the above structure, the user can abut the ground with the auxiliary wheel and hold the hand The lever drags the folding bicycle to make the folding bicycle easy to carry, thereby effectively saving the rider's strength; and the folding bicycle can be erected, so that the rear wheel and the two auxiliary wheels can simultaneously abut the ground to form a three-point contact parking room. Space, to achieve effective reduction of space.

[study]

1‧‧‧ space

2‧‧‧ wall

10‧‧‧Folding bicycle

11‧‧‧cross tube

12‧‧‧Front cross tube

13‧‧‧ rear cross tube

14‧‧‧First twister

15‧‧‧ head tube

16‧‧‧ seat tube

17‧‧‧foot stand

20‧‧‧ Front fork

21‧‧‧ front wheel

22‧‧‧Second twister

23‧‧‧Handle tube

24‧‧‧ rear fork

25‧‧‧ Rear wheel

[this creation]

30‧‧‧Folding bicycle

31‧‧‧cross tube

41‧‧‧ Front wheel

42‧‧‧ Third twister

32‧‧‧Front cross tube

33‧‧‧中横管

34‧‧‧ rear cross tube

35‧‧‧First twister

351‧‧‧ Front pivoting piece

352‧‧‧ rear pivoting piece

36‧‧‧Second twister

37‧‧‧ head tube

38‧‧‧ seat tube

39‧‧‧foot stand

40‧‧‧ front fork

43‧‧‧Hand tube

44‧‧‧ rear fork

45‧‧‧ Rear wheel

46‧‧‧round frame

461‧‧‧Support frame

47‧‧‧Assistance wheel

50‧‧‧ lever

51‧‧‧ activity card mast

52‧‧‧ card slot

53‧‧‧cross bar

54‧‧‧ Pull ring

Figure 1, is a stereo view of the prior art

Figure 2 is a schematic perspective view of a conventional parked indoors.

Figure 3 is a perspective view of the creation

Figure 4 is a schematic perspective view of the erect state of the creation.

Figure 5 is a schematic perspective view of the towed state of the creation

Figure 6 is a schematic perspective view of the original parked in the room.

Figure 7 is a cross-sectional view showing the state in which the tie rod is not fastened.

Figure 8 is a cross-sectional view showing the state in which the tie rod and the pull ring are fastened.

Figure 9 is a top plan view of the state in which the tie rod and the pull ring are fastened.

In order to enable the review board to have a better understanding of the present work, a preferred embodiment will be described in conjunction with the drawings, as detailed below: please refer to Figures 3 to 8, which include a cross tube 31 with a first turn. The second deflector 36 forms a front horizontal tube 32, a middle horizontal tube 33 and a rear horizontal tube 34. The first folding unit 35 connects the front horizontal tube 32 and the middle horizontal tube 33. The second half-turner 36 is connected to the middle horizontal tube 33 and the rear horizontal tube 34; the front end of the front horizontal tube 32 is connected with a head tube 37, and the rear end of the rear horizontal tube 34 is connected with a tube 38, and a foot is disposed below the seat tube 38. a frame 39; a fork 40 with a front wheel 41, a pivot The head tube 37 is connected to a handle tube 43 by a third twister 42 at the upper end of the head tube 37; a fork 44 is attached to the seat tube 38; a wheel frame 46 is disposed on the rear fork 44. And the axis of the rear wheel 45, the auxiliary wheel 47 is disposed on each side of the wheel bracket 46 away from the end of the rear fork 44; and a pull rod 50 is disposed on the first corner deflector 35 at the top of the horizontal tube 31; The first folding device 35 has a pivoting piece 351 fixed to the front horizontal tube 32 and a pivoting piece 352 fixed to the middle horizontal tube 33. A movable card is pivoted on the top of the front pivoting piece 351. The rod 51 is pivotally disposed on the rear pivoting piece 352, and a pair of latching grooves 52 of the movable latching lever 51 are recessed at the bottom thereof, and the pulling rod 50 can fasten the front pivoting piece 351 and the rear pivot The tab 352 is configured such that the movable latching lever 51 can be tilted horizontally against the side of the latching slot 52, or the lever 50 can release the front pivoting tab 351 and the rear pivoting tab 352 to cause the movable latching The rod 51 can be elastically erected and supported by the latching groove 52. The other end of the rod 50 is disposed in a T-shape, and a crossbar 53 is disposed. The crossbar 53 is pivotally assembled with a pull ring 54. The pull ring 54 can be opposite to the pull rod 50. buckle The upper edge of the rear pivoting piece 352; with the above structure, the user can abut the ground with the auxiliary wheel 47, and the folding rod 50 is dragged by the hand to make the folding bicycle 30 easy to carry, effectively The rider's strength is saved; the folding bicycle 30 can be erected, so that the rear wheel 45 and the two auxiliary wheels 47 can simultaneously form a three-point contact parking space 1 against the ground, thereby effectively reducing the space occupation.

The composition, function and details of the present creation are as follows: Referring to Figures 3 to 8, the folding bicycle 30 can be used to temporarily support the bicycle body (as shown in Fig. 3) when not in use; or The folding device can be folded to reduce the volume; if the folding bicycle 30 is to be towed in the non-riding area, the third folding device 42 can be loosened to fold the handle tube 43 close to the front wheel 41, and the hand is pulled. The pull ring 54 releases the pull rod 50 from the first deflector 35, and the folding bicycle 30 is erected with the rear wheel 45 as a support, and the front horizontal tube 32 is folded downward, so that the front wheel 41, The handle tube 43 is close to the bottom surface of the middle cross tube 33, and the rear wheel 45 and the two auxiliary wheels 47 can form a three-point contact against the ground without being tilted (as shown in FIG. 4); for more stability, the wheel frame 46, a pivotable support frame 461 is added to the shaft center of the rear wheel 45, and the support frame 461 can be turned to the side of the rear wheel 45 opposite to the wheel frame 46 to form the rear wheel 45, two auxiliary The wheel 47 and the support frame 461 can form a five-point contact against the ground to be more stable and have a non-slip effect; then the pull rod 50 or the pull ring 54 is pulled and the folding bicycle 30 is tilted to the two auxiliary wheels 47. Ground (as shown in Fig. 5), the folding bicycle 30 can be dragged and moved, and the folding bicycle 30 takes up space, so the range of influence when dragging is small, and thus, the crowd is crowded. Space, the user can also conveniently control and tow the folding bicycle 30, even if it passes through a narrow place, can easily pass, to achieve the effect of convenient towing; when the folding bicycle 30 is to be carried indoors, the rear wheel 45, The two auxiliary wheels 47 provide for erecting the folding bicycle 30 to form three points against the ground Because it is parked in an upright position, the occupied space 1 is small, and the folding bicycle 30 is parked in an upright manner against the wall 2, so that the indoor space 1 can be used to park more bicycles (as shown in Fig. 6), saving Park the space and increase the number of parking. Moreover, the wheel frame 46 is composed of a metal rod welding, so that in addition to providing the supporting function of the auxiliary wheel 47, it can still provide the function of carrying heavy objects, and the folding bicycle 30 is more practical and convenient.

Referring to FIGS. 7 and 8, when the first deflector 35 is to be fastened to press the pull rod 50, the movable click lever 51 is along the top surface of the latching groove 52 as the pull rod 50 is pressed downward. Sliding to the side end, the movable latching lever 51 can be tilted horizontally to abut the side of the latching slot 52, and the lever 50 abuts against the tube surface of the front cross tube 32, so that the front pivoting The sheet 351 and the rear pivoting piece 352 are tightly clamped and cannot be disengaged; otherwise, the pulling rod 50 is turned up by the angle, because the movable clamping lever 51 has elastic torque, so that the movable clamping lever 51 can be elastically erected. The latching groove 52 makes the lever 50 is lifted up, so that the first folding device 35 can be loosened, and the pulling rod 50 can be supported by the movable clamping rod 51 at an angle, so that the user can conveniently grasp the pulling rod 50. And the first folding device 35 is arranged such that the front horizontal tube 32 can only be folded downward, so that if the pulling rod 50 is accidentally pulled by the riding and the first folding device 35 is released, the first turning device 35 will not be immediately dangerous. Need to stop and then buckle the lever 50 to achieve a safe and convenient practical effect.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present creation, and are not intended to limit the features of the present creation. The re-creation of the technical means and creation principle related to the creation is still the creation. The equivalent structure of the creative category.

30‧‧‧Folding bicycle

31‧‧‧cross tube

32‧‧‧Front cross tube

33‧‧‧中横管

34‧‧‧ rear cross tube

35‧‧‧First twister

351‧‧‧ Front pivoting piece

352‧‧‧ rear pivoting piece

36‧‧‧Second twister

37‧‧‧ head tube

38‧‧‧ seat tube

39‧‧‧foot stand

40‧‧‧ front fork

41‧‧‧ Front wheel

42‧‧‧ Third twister

43‧‧‧Hand tube

44‧‧‧ rear fork

45‧‧‧ Rear wheel

46‧‧‧round frame

461‧‧‧Support frame

47‧‧‧Assistance wheel

50‧‧‧ lever

51‧‧‧ activity card mast

52‧‧‧ card slot

53‧‧‧cross bar

54‧‧‧ Pull ring

Claims (7)

The utility model relates to a folding bicycle structure which can be easily towed, comprising: a horizontal tube, a first turning device and a second turning device, wherein the horizontal tube forms a front horizontal tube, a middle horizontal tube and a rear horizontal tube, a first folding device connecting the front horizontal tube and the middle horizontal tube, the second folding device connecting the middle horizontal tube and the rear horizontal tube; the front end of the front horizontal tube is connected with a head tube, and the rear end of the rear horizontal tube is connected with a tube, the seat a tripod is arranged under the tube; a front fork has a front wheel, the pivot is set in the head tube, the upper end of the head tube is connected with a handle tube by a third turning device; and a rear wheel is provided with a rear wheel and is connected to the seat tube; a wheel frame is disposed on the axis of the rear fork and the rear wheel. The wheel frame is respectively provided with an auxiliary wheel on both sides of one end of the rear fork; and a pull rod is disposed on the first corner of the top of the horizontal tube. The folding bicycle structure as claimed in claim 1, wherein the other end of the tie rod is provided with a cross bar in a T shape. The folding bicycle structure of claim 2, wherein the first folding device has a pivoting piece fixed to the front horizontal tube and a pivoting piece fixed to the middle horizontal tube. A movable latching lever is pivoted on the top of the front pivoting piece, and the pulling rod is pivotally disposed on the rear pivoting piece, and a pair of latching slots of the movable latching lever are recessed at the bottom of the pulling rod, and the pulling rod can be engaged with the front pivot The tabs and the rear pivoting tabs enable the movable card mast to abut the side of the latching slot. The folding bicycle structure as claimed in claim 3, wherein the crossbar is pivotally assembled at both ends of the crossbar. The folding bicycle structure as claimed in claim 4, wherein the pull ring is opposite to the upper rod of the rear pivot piece. The folding bicycle structure as claimed in claim 1, wherein the wheel frame is composed of a metal rod welding. The folding bicycle structure of claim 1 is characterized in that the wheel carrier is provided with a pivotable support frame at the axial center of the rear wheel.