CN110857133A

CN110857133A - Locomotive head assembly with brake locking prevention device

Info

Publication number: CN110857133A
Application number: CN201910475607.8A
Authority: CN
Inventors: 黄泊宪; 王子彰
Original assignee: Tektro Technology Corp
Current assignee: Tektro Technology Corp
Priority date: 2018-08-22
Filing date: 2019-06-03
Publication date: 2020-03-03
Also published as: DE102019211760A1; DE102019211760B4

Abstract

A headstock assembly with a brake locking prevention device comprises a handlebar grip, a tap column, a tap vertical rod and the brake locking prevention device; the opposite ends of the vertical tap rod are respectively fixed on the handlebar and the tap column, and the vertical tap rod is provided with an accommodating space; the anti-braking locking device is arranged in the accommodating space of the vertical rod of the faucet. The anti-brake locking device is arranged in the accommodating space of the vertical rod of the handlebar, so that the anti-brake locking device is not easy to observe from the appearance of the bicycle, the appearance of the bicycle is not affected by the anti-brake locking device, and the attractiveness of the bicycle is maintained.

Description

Locomotive head assembly with brake locking prevention device

Technical Field

The invention relates to a vehicle head assembly, in particular to a vehicle head assembly with a brake locking prevention device.

Background

Along with the popularization of wind in the current society, people are driven to achieve the purposes of sports and leisure by riding bicycles. Therefore, in order to attract consumers to purchase a high-level bicycle suitable for mountain climbing or racing or a low-level bicycle for public leisure and entertainment, manufacturers pay attention to the safety of the bicycle in addition to improving the riding feeling and the visual feeling of the bicycle when designing the bicycle.

In terms of safety-related brakes, most of brake systems of bicycles on the market adopt disc brakes, and brake discs are clamped by controlling brake calipers in an oil pressure mode to brake. In order to avoid the phenomenon of wheel deadlock caused by excessive pressing of a brake handle by a user in an emergency situation, the bicycle is often provided with a brake deadlock prevention device to increase the driving safety. However, the conventional anti-lock device is easy to be configured to be quite obtrusive in appearance of the bicycle, so that the attractiveness of the whole bicycle is reduced. Therefore, how to combine the safety and the aesthetic property of the bicycle is one of the problems that the industry research and development personnel are in urgent need to solve.

Disclosure of Invention

The present invention provides a head assembly with a brake locking prevention device, which solves the problem of the prior art that the appearance of the bicycle is quite obtrusive, which results in the aesthetic performance of the whole bicycle being reduced.

The technical problem to be solved by the invention is realized by the following technical scheme:

the invention discloses a vehicle head assembly with a brake locking prevention device, which comprises a vehicle handle grip, a faucet column, a faucet vertical rod and a brake locking prevention device. The opposite ends of the vertical tap rod are respectively fixed on the handlebar and the tap column, and the vertical tap rod is provided with an accommodating space. The anti-braking locking device is arranged in the accommodating space of the vertical rod of the faucet.

The headstock assembly with the anti-braking locking device further comprises an oil pipe, the faucet vertical rod is provided with an assembling port and an elongated slot, the assembling port and the elongated slot are communicated with the accommodating space, the elongated slot extends from the assembling port to the faucet column, the handlebar is arranged at the assembling port, and the oil pipe penetrates through the elongated slot and is arranged on the anti-braking locking device.

The headstock assembly with the anti-braking locking device further comprises a fixing cover, the handlebar stem is provided with a fixing structure, the fixing structure is positioned at the assembling port, and the fixing cover is arranged on the fixing structure so as to fix the handlebar handle on the handlebar stem.

The headstock assembly with the anti-brake locking device further comprises a fixing ring, the fixing ring comprises a first sleeving part, a second sleeving part and a connecting part, the second sleeving part surrounds the first sleeving part, two opposite ends of the connecting part are respectively connected with the first sleeving part and the second sleeving part, the first sleeving part is sleeved on the anti-brake locking device and penetrates through the assembly opening to be located in the accommodating space, the second sleeving part is sleeved on the faucet vertical rod, and the connecting part is located in the long groove.

The headstock assembly with the brake locking preventing device further comprises a sealing cover which is arranged on the vertical rod of the tap and shields the part of the long groove.

The anti-brake locking device is provided with an oil pressure adjusting chamber, an oil inlet, an oil outlet, a first piston and a second piston, wherein the oil inlet and the oil outlet are communicated with the oil pressure adjusting chamber, the oil outlet corresponds to the long groove, the oil pipe penetrates through the long groove to be connected with the oil outlet, the first piston and the second piston are slidably positioned in the oil pressure adjusting chamber, the outer diameter of the first piston is larger than that of the second piston, the first piston is provided with a first oil way which is communicated with the oil inlet and the oil outlet, and the second piston is used for blocking the first oil way and the oil outlet and pushing the first piston to increase the oil storage volume of the oil pressure adjusting chamber.

The second piston has a second oil path for connecting the first oil path to block the first oil path from the oil outlet.

The anti-braking locking device further comprises a first elastic element and a second elastic element, wherein the first elastic element is arranged on the first piston and used for applying elastic force to the first piston towards the direction of the second piston, the second elastic element is arranged on the second piston and used for applying elastic force to the second piston towards the direction far away from the first piston.

The outer diameters of the opposite ends of the first piston are the same.

The outer diameters of the opposite ends of the second piston are the same.

The oil inlet is closer to the handle of the bicycle than the oil outlet.

The vehicle head assembly with the anti-brake locking device further comprises an axial fixing piece, the axial fixing piece comprises a ring body portion and an axial extending portion, the axial extending portion protrudes out of the ring body portion along the axial direction of the ring body portion, the ring body portion is sleeved on the anti-brake locking device and penetrates through the assembling port to be located in the containing space, and the axial extending portion is located in the long groove.

According to the bicycle head assembly with the anti-brake locking device disclosed by the embodiment, the anti-brake locking device is arranged in the accommodating space of the vertical rod of the handlebar, so that the anti-brake locking device is not easy to observe from the appearance of the bicycle, the appearance of the bicycle is not affected by the anti-brake locking device, and the attractiveness of the bicycle is maintained.

The foregoing description of the present invention and the following description of the embodiments are provided to illustrate and explain the principles of the present invention and to provide further explanation of the scope of the invention.

Drawings

Fig. 1 is a perspective view of a vehicle head assembly according to a first embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the second piston of FIG. 3 pushing against the first piston;

FIG. 5 is a perspective view of another embodiment vehicle head assembly;

FIG. 6 is a perspective view of yet another embodiment of a head assembly;

FIG. 7 is an exploded view of a head assembly according to a second embodiment of the present invention;

fig. 8 is a cross-sectional schematic view of the headset of fig. 7.

[ description of reference ]

1. 1a, 1b vehicle head assembly

10. 10a tap vertical bar

11 accommodating space

12 assembly port

13 long groove

14 fixed structure

141 lock hole

20 tap column

30 fixed ring

31 first set of parts

32 second nesting part

33 connecting part

40. 40a, 40b anti-brake locking device

41 oil pressure regulating chamber

42 oil inlet

43 oil outlet

44 first piston

441 first oil path

45 second piston

451 second oil path

46 first elastic member

47 second elastic member

50. 60, 50a, 60a, 50b, 60b oil pipe

70. 70b vehicle handle

80 fixed cover

90 closing cap

100 locking part

110a, 110b clamp bracket

R1, R2, R3 and R4 outer diameter

A oil storage volume

30c axial fixing piece

31c ring body part

32c axial extension

Detailed Description

Please refer to fig. 1 to 3. Fig. 1 is a perspective view of a vehicle head assembly according to a first embodiment of the present invention. Fig. 2 is an exploded view of fig. 1. Fig. 3 is a schematic cross-sectional view of fig. 1.

The head assembly 1 of the present embodiment includes a stem 10, a stem 20, a fixing ring 30, an anti-lock device 40, two

oil pipes

50, 60, a handle grip 70, a fixing cover 80 and a cover 90.

One end of the vertical faucet stem 10 is fixed to the faucet post 20, and the vertical faucet stem 10 has an accommodating space 11, an assembling opening 12 and an elongated slot 13. The assembling opening 12 and the long groove 13 are both communicated with the accommodating space 11, the assembling opening 12 is located at one end of the vertical faucet stem 10 far away from the faucet post 20, and the long groove 13 extends from the assembling opening 12 to the faucet post 20.

The fixing ring 30 includes a first engaging portion 31, a second engaging portion 32 and a connecting portion 33. The second engaging portion 32 surrounds the first engaging portion 31, and two opposite ends of the connecting portion 33 are connected to the first engaging portion 31 and the second engaging portion 32, respectively. The first sleeving part 31 is sleeved on the anti-locking device 40 and penetrates through the assembling port 12 of the vertical faucet rod 10, so that the first sleeving part 31 and the anti-locking device 40 are both located in the accommodating space 11, the second sleeving part 32 is sleeved on the vertical faucet rod 10, and the connecting part 33 is located in the elongated slot 13. The oil pipe 50 passes through the elongated slot 13 and is installed in the anti-lock brake 40, and the oil pipe 60 is installed in the anti-lock brake 40 and is far from the faucet post 20 than the oil pipe 50.

In the embodiment, the head assembly 1 further includes a plurality of locking members 100, and the faucet stem 10 further has a fixing structure 14 located at the assembling opening 12, and the fixing structure 14 has a plurality of locking holes 141. The handle grip 70 is mounted on the assembly opening 12 of the vertical faucet stem 10, and the locking members 100 respectively pass through the fixing cover 80 and are locked in the locking holes 141 of the fixing structure 14, so that the handle grip 70 is fixed on the vertical faucet stem 10. The cover 90 is installed on the vertical stem 10 and covers part of the long groove 13, and the cover 90 does not interfere with the connection part 33 of the oil pipe 50 and the fixing ring 30.

The anti-lock device 40 has an oil pressure adjusting chamber 41, an oil inlet 42 and an oil outlet 43, a first piston 44, a second piston 45, a first elastic member 46 and a second elastic member 47. The oil inlet 42 and the oil outlet 43 are communicated with the oil pressure adjusting chamber 41, and the oil inlet 42 is closer to the handle grip 70 than the oil outlet 43. In this embodiment, the two

oil pipes

50, 60 are respectively connected to the oil outlet 43 and the oil inlet 42 of the anti-lock brake device.

The first piston 44 and the second piston 45 are slidably located in the oil pressure adjustment chamber 41. In this embodiment, the outer diameters R1, R2 of the opposite ends of the first piston 44 are the same, and the outer diameters R3, R4 of the opposite ends of the second piston 45 are the same. Further, an outer diameter R1 of an end of the first piston 44 adjacent to the second piston 45 is greater than an outer diameter R3 of an end of the second piston 45 adjacent to the first piston 44. The first piston 44 has a first oil path 441, and the second piston 45 has a second oil path 451, and the first oil path 441 and the second oil path 451 are both communicated with the oil inlet 42 and the oil outlet 43.

The first elastic element 46 is disposed on the first piston 44, and the first elastic element 46 is used for applying an elastic force to the first piston 44 in a direction toward the second piston 45. The second elastic element 47 is disposed on the second piston 45, and the second elastic element 47 is used for applying an elastic force to the second piston 45 in a direction away from the first piston 44.

In the present embodiment, the oil pipe 60 is connected to, for example, an oil brake handle (not shown) of the bicycle, and the oil pipe 50 is connected to, for example, an oil caliper (not shown) of the bicycle. When a user presses the hydraulic brake handle to brake, the hydraulic pressure is sequentially transmitted to the hydraulic caliper from the oil inlet 42, the first oil path 441 of the first piston 44, the hydraulic pressure adjusting chamber 41, the oil outlet 43, and the oil pipe 50, so as to drive the hydraulic caliper to clamp a brake disc disposed on a wheel of a bicycle, thereby braking the bicycle.

Next, referring to fig. 4, fig. 4 is a schematic cross-sectional view illustrating the second piston of fig. 3 pushing against the first piston.

When the wheel sensor of the bicycle detects that the wheel of the bicycle is locked during braking, the second piston 45 is pushed by a driver (not shown), for example, the second oil path 451 of the second piston 45 is first connected to the first oil path 441 of the first piston 44, so that the first oil path 441 is blocked from the oil outlet 43, and the oil pressure cannot be transmitted to the oil pressure caliper. Then, the second piston 45 is continuously pushed by the driver to push the first piston 44 to move a distance together. At this time, since the outer diameter R1 of the first piston 44 is greater than the outer diameter R3 of the second piston 45, after the first piston 44 and the second piston 45 move together for a distance, the space occupied by the displacement of the first piston 44 is greater than the space occupied by the displacement of the second piston 45, so that the oil storage volume a of the oil pressure adjusting chamber 41 is increased, and the oil pressure at the oil outlet 43 is a pressure relief space. Therefore, the oil pressure calipers can be slightly loosened to enable the wheels of the bicycle to recover rolling, so that the phenomenon that the wheels of the bicycle slide is prevented, and the braking safety of the bicycle is further improved.

During the movement of the first piston 44 and the second piston 45, the first piston 44 and the second piston 45 compress the first elastic element 46 and the second elastic element 47, respectively. When the wheel of the bicycle is returned to rolling, the driver stops operating, so the first elastic element 46 and the second elastic element 47 respectively drive the first piston 44 and the second piston 45 to return to the original positions. Thus, the first oil path 441 of the first piston 44 is communicated with the oil outlet 43, so that the oil pressure can be transmitted to the hydraulic caliper, and the hydraulic caliper can brake again. When the detector detects the deadlock of the wheels of the bicycle again, the above steps are repeated until the braking of the bicycle is finished.

In the embodiment, since the anti-lock device 40 is disposed in the accommodating space 11 of the handlebar stem 10, the anti-lock device 40 is not easy to be seen from the appearance of the bicycle, and the anti-lock device 40 does not affect the appearance of the bicycle, so that the aesthetic property of the bicycle is maintained.

Please refer to fig. 5 and fig. 6. Fig. 5 is a perspective view of another embodiment vehicle head assembly. Fig. 6 is a perspective view of yet another embodiment vehicle head assembly.

In the present embodiment, as shown in fig. 5, the anti-locking device 40a of the head assembly 1a is hung outside the stem 10a of the head assembly 1a via a clamping bracket 110 a. In addition, an oil pipe 60a connected to the oil inlet and an oil pipe 50a connected to the oil outlet are connected to adjacent sides of the anti-lock brake device 40a, respectively.

As shown in fig. 6, the anti-locking device 40b of the head assembly 1b of the present embodiment is hung on the handlebar grip 70b of the head assembly 1b through a clamping bracket 110 b. In addition, the oil pipe 60b connected to the oil inlet and the oil pipe 50b connected to the oil outlet are respectively connected to two adjacent sides of the anti-locking device 40b, and the extending directions of the oil pipe 50b and the oil pipe 60b are opposite.

In the above embodiments, the anti-locking device 40 is installed in the faucet stem 10 through the fixing ring 30, but not limited thereto. Please refer to fig. 7 and 8. Fig. 7 is an exploded view of a head assembly according to a second embodiment of the disclosure. Fig. 8 is a cross-sectional schematic view of the headset of fig. 7.

In this embodiment, the anti-lock device 40 is installed in the stem 10 via the axial fixing member 30 c. In detail, the axial fixing member 30c includes an annular body portion 31c and an axial extension portion 32 c. The axial extension 32c protrudes from the ring body 31c in the axial direction of the ring body 31 c. The annular body 31c is sleeved on the anti-locking device 40 and passes through the assembling hole 12 to be located in the accommodating space 11, and the axial extending portion 32c is located in the long groove 13.

In the headstock assemblies of fig. 1 and 7, the oil outlet pipe is arranged through the long groove, but not limited thereto. In other embodiments, the oil outlet pipe can be hidden in the accommodating space of the vertical rod of the faucet. Therefore, the tap vertical rod can have no long groove for the oil outlet pipe to pass through, so that the attractiveness of the tap vertical rod can be improved. Similarly, the oil inlet pipe can be hidden in the accommodating space of the vertical stem of the faucet.

According to the bicycle head assembly, the anti-brake locking device is arranged in the accommodating space of the vertical rod of the handlebar, so that the anti-brake locking device is not easy to observe from the appearance of the bicycle, the appearance of the bicycle is not affected by the anti-brake locking device, and the attractiveness of the bicycle is maintained.

Claims

1. The utility model provides a locomotive subassembly with prevent dead device of brake lock which characterized in that contains:

a handlebar grip;

a tap column;

the two opposite ends of the vertical faucet rod are respectively fixed on the handlebar and the faucet column, and the vertical faucet rod is provided with an accommodating space; and

and the brake locking prevention device is arranged in the accommodating space.

2. The vehicle head assembly with the anti-lock device as claimed in claim 1, further comprising an oil tube, wherein the stem has an assembling opening and an elongated slot, the assembling opening and the elongated slot are both connected to the receiving space, the elongated slot extends from the assembling opening to the stem, the handlebar grip is mounted to the assembling opening, and the oil tube is mounted to the anti-lock device through the elongated slot.

3. The vehicle head assembly with the anti-lock device as claimed in claim 2, further comprising a fixing cover, wherein the stem has a fixing structure, the fixing structure is located at the assembling opening, and the fixing cover is installed on the fixing structure, so that the handlebar grip is fixed on the stem.

4. The vehicle head assembly with the anti-lock device as claimed in claim 2, further comprising a fixing ring, wherein the fixing ring comprises a first engaging portion, a second engaging portion and a connecting portion, the second engaging portion surrounds the first engaging portion, two opposite ends of the connecting portion are respectively connected to the first engaging portion and the second engaging portion, the first engaging portion is engaged with the anti-lock device and penetrates the assembling opening to be located in the receiving space, the second engaging portion is engaged with the vertical rod, and the connecting portion is located in the elongated slot.

5. The vehicle head assembly with the anti-lock device as claimed in claim 2, further comprising a cover, wherein the cover is mounted on the vertical bar and covers a portion of the elongated slot.

6. The vehicle head assembly with the anti-lock brake device as claimed in claim 2, wherein the anti-lock brake device has an oil pressure adjusting chamber, an oil inlet, an oil outlet, a first piston and a second piston, the oil inlet and the oil outlet are connected to the oil pressure adjusting chamber, the oil outlet corresponds to the elongated slot, the oil pipe passes through the elongated slot to connect to the oil outlet, the first piston and the second piston are slidably located in the oil pressure adjusting chamber, the outer diameter of the first piston is larger than that of the second piston, the first piston has a first oil passage, the first oil passage is connected to the oil inlet and the oil outlet, the second piston is used to block the first oil passage and the oil outlet, and push against the first piston to increase an oil storage volume of the oil pressure adjusting chamber.

7. The vehicle head assembly with the anti-lock brake device as claimed in claim 6, wherein the second piston has a second oil passage for engaging the first oil passage to block the first oil passage from the oil outlet.

8. The vehicle head assembly of claim 6, wherein the anti-deadlock device further comprises a first elastic member and a second elastic member, the first elastic member is disposed on the first piston and is used for applying an elastic force to the first piston in a direction toward the second piston, the second elastic member is disposed on the second piston and is used for applying an elastic force to the second piston in a direction away from the first piston.

9. The vehicle head assembly with the anti-lock brake device of claim 6, wherein the outer diameters of the opposite ends of the first piston are the same.

10. The vehicle head assembly with the anti-lock brake device of claim 6, wherein the outer diameters of the opposite ends of the second piston are the same.

11. The vehicle head assembly with the anti-lock brake device as claimed in claim 6, wherein the oil inlet is closer to the handle grip than the oil outlet.

12. The vehicle head assembly with the anti-locking device as claimed in claim 2, further comprising an axial fixing member, wherein the axial fixing member includes a ring body portion and an axial extending portion, the axial extending portion protrudes out of the ring body portion along an axial direction of the ring body portion, the ring body portion is sleeved on the anti-locking device and penetrates through the assembling hole to be located in the accommodating space, and the axial extending portion is located in the elongated slot.