JP6202934B2 - Bar handle vehicle brake system - Google Patents

Description

  The present invention relates to a brake device for a bar handle vehicle, and more specifically, one of a front brake and a rear brake is a hydraulic brake and the other is a mechanical brake, and the hydraulic brake is operated by operating a first brake operator. And a brake device for a bar handle vehicle that operates a hydraulic brake and a mechanical brake in conjunction with each other by operating a second brake operator.

  Conventionally, as a brake device for a bar handle vehicle, a hydraulic brake is independently operated via a master cylinder unit by operating a first brake operator, and via a master cylinder unit by operating a second brake operator. In some cases, a hydraulic brake and a mechanical brake are operated in conjunction with each other.

  As this master cylinder unit, there has been a combination of a hydraulic master cylinder and a lever mechanism. As a lever mechanism, there is a lever mechanism including four levers of a first rotation lever, a second rotation lever, a knocker, and an equalizer lever, and a first rotation lever that is rotated by the operation of the first brake operator, The hydraulic brake is operated with the knocker, and the hydraulic brake and the mechanical brake are operated in conjunction with the equalizer lever, the second rotation lever, and the knocker, which are rotated by the operation of the second brake operator, The knocker was formed with a first rotation lever abutting portion pushed by the first rotation lever and a second rotation lever abutting portion pushed by the second rotation lever (for example, , See Patent Document 1).

Japanese Patent No. 4532753

  In the thing of the above-mentioned patent document 1, the knocker pushing part which pushes a knocker on the 1st rotation lever side, and the 1st rotation lever contact part which contact | abuts the said knocker pushing part on the knocker side are each formed. The piston of the hydraulic master cylinder is actuated by the knocker pushing portion pushing the first rotating lever abutting portion. For this reason, after assembling the hydraulic master cylinder and the lever mechanism, it is not possible to adjust the timing of operating the piston by adjusting the contact state between the knocker pushing portion and the first rotating lever contact portion. It was.

  Therefore, the present invention can adjust the contact state between the first rotation lever and the knocker after assembling the hydraulic master cylinder and the lever mechanism, and even if the operation is repeated, An object of the present invention is to provide a bar handle vehicle brake device that prevents the rotating lever contact portion from being worn and can always operate the master cylinder unit with high accuracy.

In order to achieve the above object, a brake apparatus for a bar handle vehicle according to the present invention has a hydraulic brake as one of a front wheel brake and a rear wheel brake, and a mechanical brake as the other, and is operated by operating a first brake operator. The hydraulic brake is operated independently through a master cylinder unit formed by combining a pressure master cylinder and a lever mechanism, and the hydraulic type is operated through the master cylinder unit by operating a second brake operator. The brake is operated in conjunction with the mechanical brake, and the lever mechanism includes a first rotating lever, a second rotating lever, a knocker, and an equalizer lever, and is connected to the first brake operator. The connecting means is connected to the first rotation lever, and the first rotation lever is pushed by the operation of the first brake operator. Via the knocker, to actuate the piston of the hydraulic master cylinder, to actuate the hydraulic brake alone, and to the equalizer lever, the second brake linkage means connected to the second brake operator, A mechanical brake side linking means connected to a mechanical brake is connected to the second rotating lever, and the mechanical brake side linking means is pulled through the equalizer lever by operation of the second brake operator. The mechanical brake is operated, and the equalizer lever rotates the second rotation lever, and the piston of the hydraulic master cylinder is operated via the knocker that the second rotation lever pushes. by, in the brake device for a bar handle vehicle which operates in conjunction with the hydraulic brake, the first pivot lever, adjusting And a second bolt that is provided with an adjustment bolt abutting surface to which a retainer member that abuts the tip of an adjustment bolt that is attached to the adjustment bolt mounting portion so that the amount of protrusion can be adjusted is attached. The lever is formed with a knocker pushing portion that pushes the knocker, and the knocker is formed with a protrusion protruding in the direction of the second rotation lever, and the protrusion is pushed by the knocker pushing portion. The second rotation lever contact surface is formed, and the second rotation lever contact surface and the adjustment bolt contact surface are formed as a continuous surface .

In addition, prior Symbol retainer member, it is preferable to form the head of the pin member which is embedded in the adjustment bolt abutting surface.

Since the present invention is formed as described above, even after the hydraulic master cylinder and the lever mechanism are assembled, by adjusting the protruding amount of the adjusting bolt, the first rotating lever and the knocker The contact state can be adjusted, and the timing for operating the piston can be adjusted. Furthermore, even if the operation is repeated, the tip of the adjustment bolt and the contact surface of the adjustment bolt can be prevented from being worn, and the master cylinder unit can always be operated with high accuracy.

Moreover, the master cylinder unit can be compactly formed by attaching the adjusting bolt to the adjusting bolt mounting portion and forming the retainer member with the head of the pin member embedded in the adjusting bolt contact surface .

It is the schematic of the brake device for bar handle vehicles which shows one example of this invention. It is a partial cross section front view of a hydraulic master cylinder unit. FIG. 3 is a right side view of the hydraulic master cylinder unit. It is a rear view of a hydraulic master cylinder unit. It is a left view of a hydraulic master cylinder unit similarly. It is a top view of a hydraulic master cylinder unit similarly. It is a bottom view of a hydraulic master cylinder unit similarly. It is VIII-VIII sectional drawing of FIG. It is a perspective view of the master cylinder unit which shows one example of this invention. It is explanatory drawing of the master cylinder unit of the state which operated only the 1st operation lever and act | operated only the hydraulic brake similarly. Similarly, it is explanatory drawing of a master cylinder unit at the time of operating only a 2nd operation lever and becoming an interlocking state. Similarly, it is an explanatory view of the master cylinder unit in a state where only the second operation lever is operated to restrict the operation of the hydraulic brake. Similarly, it is a rear view of the master cylinder unit in a state where only the second operation lever is operated to restrict the operation of the hydraulic brake. It is explanatory drawing of a master cylinder unit at the time of operating both operation levers similarly.

  FIG. 1 to FIG. 14 show an embodiment of the present invention. As shown in FIG. 1, a brake device 1 for a bar handle vehicle according to this embodiment includes a front wheel brake 2, a rear wheel brake 3, and a front wheel. A brake operation element 4 (first brake operation element of the present invention) and a rear wheel brake operation element 5 (second brake operation element of the present invention) are provided, and the front wheel brake 2, the front wheel brake operation element 4, and the rear A master cylinder unit 20 is interposed between the wheel brake 3 and the rear wheel brake operator 5.

  In the following description of the master cylinder unit, the left side and the right side are the left side and the right side as viewed from the driver side as shown in FIG. 1, and the rear wheel brake operator 5 side is the left side. The front wheel brake operator 4 side will be described as the right side.

  As the front wheel brake 2, a hydraulic disk brake is used in which a disk rotor 2a that rotates integrally with the front wheel is combined with a caliper body 2b having a piston. The rear wheel brake 3 is a mechanical drum brake in which a pair of brake shoes 3b, 3b are disposed opposite to a back plate 3a so as to be able to expand, and both brake shoes 3b, 3b are expanded using anchor pins 3c as fulcrums. ing.

  The front wheel brake operation element 4 operates the operation lever 4 a attached to the handlebar 6 to pull the first brake wire 7 (the first brake connecting means of the present invention). The master cylinder 21 is operated to supply hydraulic pressure to the front wheel brake 2 via the hydraulic pressure pipe 8, and the front wheel brake 2 is operated independently.

  The rear wheel brake operator 5 operates the operation lever 5 a attached to the handle bar 6, whereby the second brake wire 9 (second brake connecting means of the present invention) is pulled, via the master cylinder unit 20. The rear wheel brake 3 for operating the rear wheel brake 3 (the mechanical brake connecting means of the present invention) is pulled to operate the rear wheel brake 3, and the hydraulic master cylinder 21 of the master cylinder unit 20 is operated. By operating, the hydraulic pressure is supplied to the front wheel brake 2 via the hydraulic pressure pipe 8 to operate the front wheel brake 2 in conjunction with each other.

  The master cylinder unit 20 is a combination of the hydraulic master cylinder 21 for supplying hydraulic pressure to the front wheel brake 2 and a lever mechanism 40. The lever mechanism 40 includes a first rotating lever 41 and a second rotating lever. A lever 42, a knocker 43, and an equalizer lever 44 are provided.

  The hydraulic master cylinder 21 is provided with a bottomed cylinder hole 21b in the cylinder body 21a with its lower end opened, and a piston 22 is movably inserted into the cylinder hole 21b. A hydraulic chamber (not shown) is defined between the upper wall portion of the cylinder hole 21b and the piston 22, and an output port (not shown) communicating with the hydraulic chamber is formed on the upper wall portion. Then, one end side of the hydraulic pipe 8 is connected to the output port via a banjo 23 and a banjo bolt 24. In addition, a return spring (not shown) is contracted in the hydraulic chamber, and the piston 22 is always urged toward the opening side of the cylinder hole 21b by the elastic force of the return spring. The initial position is set by contacting the circlip 22a fitted to the large diameter portion formed on the lower end side. Further, a raised portion 21c is provided in the cylinder axial direction on the front side of the peripheral wall of the cylinder body 21a, and a boss hole 21d is provided in a substantially central portion of the raised portion 21c so as to communicate with the cylinder hole 21b. 21d is provided with a liquid passage 25 to which the other end of the pipe 12 having one end connected to the reservoir 11 storing the working fluid is connected. The liquid passage pipe 25 is formed in an L shape, and has a first pipe part 25a (the pipe part of the present invention) connected to the boss hole 21d and a second pipe part 25b connecting the pipe 12. . Further, on the cylinder hole opening side of the raised portion 21c, a first wire guide portion 21e for guiding the first brake wire 7 is provided so as to protrude to the right side (front wheel brake operator 4 side), and at the center of the raised portion 21c. A second wire guide portion 21f for guiding the second brake wire 9 is provided so as to protrude to the back side (the vehicle body front side). Bolt holes 21g and 21g for mounting the body mounting bolts are formed on the upper wall side and the cylinder hole opening side across the boss hole 21d.

  Further, an engagement piece 21h of the delay spring 26 projects from the front surface on the upper wall side of the cylinder body 21a. Also, a pair of lever holders 21i and 21i project from the front side and the back side of the cylinder body 21a near the cylinder hole opening. Further, on the cylinder hole opening side of the cylinder body 21a, a stopper bolt mounting boss portion 21j is formed protruding from the lever holders 21i, 21i on the left side (rear wheel brake operating element 5 side). A stopper bolt 27 is attached to the boss portion 21j. Further, the lower surface of the stopper bolt mounting boss portion 21j is a second rotating lever abutting surface 21k that contacts the second rotating lever 42 and sets the initial position of the second rotating lever 42. Further, a rear wheel brake wire guide portion 21m protrudes from a lower back portion of the cylinder body 21a on the cylinder hole opening side.

  The lever mechanism 40 includes a rotation base 41a of the first rotation lever 41 on the front side between the lever holders 21i and 21i, a rotation base 42a of the second rotation lever 42 on the back side, and a first rotation base lever. When the rotation base 43a of the knocker 43 is disposed between the rotation base of the second rotation lever and the rotation base of the second rotation lever, and the fixing pin 28 is mounted, the lever holders 21i and 21i are attached to the first time. The moving lever 41, the second rotating lever 42, and the knocker 43 are rotatably connected to each other. The connecting arm 42b provided at the right end of the second rotating lever 42 is provided at the right end of the equalizer lever 44. The second turning lever connecting portion 44a is pivotally supported.

The first rotating lever 41, the extended from rotation base 41a is adjusting bolt mounting portion 41 b, to the adjustment bolt mounting portion 41b, the adjusting bolt 29 abuts is mounted for adjusting the amount of protrusion on the knocker 43 ing. Furthermore, the 1st brake wire connection part 41c which connects the edge part of the 1st brake wire 7 is provided in the front side of the adjustment bolt attachment part 41b.

  The second turning lever 42 has the turning base 42a formed at the center, and an arm portion extending in the left-right direction of the second turning base 42a is provided on the back side of the turning base 42a. The connecting arm 42b connected to the equalizer lever 44 is provided on the right end side of the arm portion, and a holding piece 42c for holding the stopper bolt 27 is formed on the left end side. Furthermore, an engaging protrusion 42d of the delay spring 26 is provided on the front side of the sandwiching piece 42c. Further, a knocker pushing portion 42e that contacts the knocker 43 and pushes the knocker 43 is formed at the right end portion of the second turning base portion 42a, and a second turning lever abutting surface is formed at the left end portion. A body contact surface 42f that contacts 21k is formed. The delay spring 26 is formed of a tension type coil spring including attachment portions 26a and 26a provided at both ends and a winding portion 26b formed between the attachment portions 26a and 26a.

In the knocker 43, a piston pushing portion 43b is formed on the right side of the rotation base portion 43a. The piston pushing portion 43b is provided with a piston abutting portion 43c that always abuts on the lower end portion of the piston 22 at the upper portion. A head 45a of a pin member 45 embedded in the knocker 43 is disposed on the lower surface of the piston pushing portion 43b, and an adjustment bolt abutting surface on which an outer end surface of the head 45a abuts on the adjustment bolt 29 is disposed. 43 d . Further, a projection 43e protruding in the direction of the second rotation lever 42 is formed below the piston pushing portion 43b, and a first portion pushed by the knocker pushing portion 42e is formed on the lower surface of the projection 43e. As shown in FIGS. 11 and 12, the second rotation lever contact surface 43f and the adjustment bolt contact surface 43d are formed as a continuous surface. .

  The equalizer lever 44 is disposed on the back side of the cylinder body 21a, the rear wheel brake wire connecting portion 44b for connecting the rear wheel brake wire 10 is connected to one end portion, and the second brake wire 9 is connected to the center portion. The second brake wire connecting portion 44c to be connected is formed with the second rotating lever connecting portion 44a connected to the connecting arm 42b of the second rotating lever 42 at the other end. The second rotating lever connecting portion 44a is formed in a bifurcated shape, the connecting arm 42b is inserted between the second rotating lever connecting portions 44a, and the second rotating lever connecting portion 44a is connected via the connecting pin 30. The arm 42b is rotatably connected.

  The first rotation lever 41, the second rotation lever 42, and the knocker 43 described above are rotatably connected between the lever holders 21i and 21i, and the connecting arm 42b of the second rotation lever 42 is provided. Is connected to the second turning lever connecting portion 44a of the equalizer lever 44 via the connecting pin 30, and is pulled into the rear wheel brake wire connecting portion 44b of the equalizer lever 44 via the rear wheel brake wire guide portion 21m. The rear wheel brake wire 10 thus connected is connected to the second brake wire connecting portion 44c with the second brake wire 9 drawn through the second wire guide portion 21f. The first brake wire 7 drawn through the first wire guide portion 21e is connected to the first brake wire connecting portion 41c of the first rotating lever 41. Furthermore, attachment portions 26a and 26a of the delay spring 26 are attached to the engagement piece 21h of the cylinder body 21a and the engagement protrusion 42d of the second rotation lever 42, respectively.

  Further, as shown in FIG. 6, the liquid passage 25 formed in the cylinder body 21a has a parallel surface F2 in which the axis L1 of the first tube portion 25a is parallel to the rotation surface on which the knocker 43 rotates, In the present embodiment, the axis L1 of the first pipe portion 25a is slightly inclined obliquely upward with respect to the horizontal plane, disposed in a direction along other planes excluding the orthogonal plane F3 orthogonal to the parallel plane F2. The axial line L2 of the second pipe part 25b is arranged so as to face obliquely downward from the tip part of the first pipe part 25a. Further, the distal end portion of the first tube portion 25a is disposed so as not to protrude to the outer peripheral side of the cylinder body 21a from the first wire guide portion 21e, the second wire guide portion 21f, and the rear wheel brake wire guide portion 21m.

  When the master cylinder unit 20 formed as described above is in an inoperative state, as shown in FIGS. 1 to 9, the piston 22 of the hydraulic master cylinder 21 opens the cylinder hole by the elastic force of the return spring. It is urged in the part direction and is arranged at the initial position by contact with the circlip 22a. Further, the first rotation lever 41 is held at the initial position of the first rotation lever 41 by the tension of the first brake wire 7 connected to the first brake wire connecting portion 41c, and the second rotation lever 42 is Due to the elastic force of the delay spring 26, the body contact surface 42f is in contact with the second rotation lever contact surface 21k. Further, in the knocker 43, the adjustment bolt contact surface 43d contacts the tip of the adjustment bolt 29, the second rotating lever contact surface 43f contacts the knocker pushing portion 42e, and the piston contact portion 43c serves as the piston 22. Abut. Further, the equalizer lever 44 is in a state where the tension of the second brake wire 9 and the tension of the rear wheel brake wire 10 are balanced with the second rotating lever connecting portion 44a being connected to the connecting arm 42b. In a horizontal state.

  When the front wheel brake operation element 4 is operated from the non-actuated state, as shown in FIG. 10, the first brake wire 7 is pulled, and the first brake wire connecting portion 41c of the first rotating lever 41 is moved upward. The first rotation lever 41 rotates counterclockwise around the rotation base 41a. Along with this, the adjustment bolt 29 pushes the adjustment bolt contact surface 43d of the knocker 43, rotates the knocker 43 counterclockwise around the rotation base 43a, and the piston contact portion 43c becomes the piston. 22 is pushed. Thereby, the hydraulic fluid whose pressure has been increased supplies hydraulic pressure to the front wheel brake 2 via the hydraulic pressure pipe 8 to operate the front wheel brake 2 alone.

  When the rear wheel brake operator 5 is operated, first, as shown in FIG. 11, the second brake wire 9 is pulled and the equalizer lever 44 is connected via the second brake wire connecting portion 44 c of the equalizer lever 44. The whole is pulled upward. Along with this, the rear wheel brake wire 10 connected to the rear wheel brake wire connecting portion 44b is pulled, and the rear wheel brake 3 starts to be operated, and the second rotating lever connecting portion 44a of the equalizer lever 44 is activated. The connecting arm 42b of the second rotating lever 42 connected to the upper part is also pulled upward, and the second rotating lever 42 counterclockwise around the rotating base 42a against the resilient force of the delay spring 26. The piston 22 is pushed when the knocker pushing portion 42e is brought into contact with the second turning lever abutting surface 43f of the knocker 43 and pushed, and the pressurized hydraulic fluid is supplied to the hydraulic pipe. The hydraulic pressure is supplied to the front wheel brake 2 via 8 and the front wheel brake 2 is operated in conjunction.

  When the rear wheel brake operator 5 is further operated, as shown in FIGS. 12 and 13, the equalizer lever 44 is further pulled upward, and the second rotation lever 42 is centered on the rotation base 42a. The pair of clamping pieces 42c, 42c abut against the seating surface 27a of the stopper bolt 27 and the rotation of the knocker 43 is stopped, and the rotation of the knocker 43 is stopped. The supply of hydraulic pressure is regulated. When the rear wheel brake operator 5 is operated more strongly, the pair of clamping pieces 42c and 42c come into contact with the seating surface 27a of the stopper bolt 27 and the rotation of the second rotation lever 42 is restricted. Since the position of the connecting pin 30 is fixed, the equalizer lever 44 rotates clockwise about the connecting pin 30, pulls only the rear wheel brake wire 10, and further releases the rear wheel brake 3. Operate strongly.

  As shown in FIG. 14, when the front wheel brake operation element 4 and the rear wheel brake operation element 5 are strongly input simultaneously, the first rotation lever 41 is pulled by the first brake wire 7. Rotating independently, pushing the piston 22 to strongly actuate the front wheel brake 2, and the movement of the equalizer lever 44 pulled by the second brake wire 9 causes the second rotation lever 42 to move as described above. Then, after the clamping pieces 42c, 42c are in contact with the seating surface 27a of the stopper bolt 27 and the rotation is restricted, the equalizer lever 44 rotates about the connecting pin 30 and the rear wheel brake The wire 10 is pulled and the rear wheel brake 3 is operated strongly.

In the present embodiment, as described above, the adjustment bolt 29 that contacts the knocker 43 is attached to the adjustment bolt attachment portion 41b of the first rotation lever 41 so that the protrusion amount can be adjusted, and the piston pushing portion of the knocker 43 Since the pin member 45 is embedded in the lower surface of 43b and the outer end surface of the head 45a of the pin member 45 is an adjustment bolt contact surface 43d that contacts the adjustment bolt 29, the hydraulic master cylinder 21 and Even after the lever mechanism 40 is assembled, the contact state between the first rotation lever 41 and the knocker 43 can be adjusted by adjusting the protruding amount of the adjusting bolt 29, and the piston is operated. The timing can be adjusted. Further, by repeating the operation, even if the adjustment bolt 29 repeatedly contacts the adjustment bolt contact surface 43d, the adjustment bolt contact surface 43d does not wear, so that the master cylinder unit 20 is always operated with high accuracy. be able to. Further, the adjustment bolt 29 is attached to the first rotation lever 41 side, and the pin member 45 is embedded on the knocker 43 side to form the adjustment bolt contact surface 43d, so that the master cylinder unit can be compactly formed. .

The present invention is not limited to the case where the outer end surface of the head portion of the pin member is an adjustment bolt abutting surface that abuts against the adjustment bolt as in this embodiment, and the retainer member formed of a thin metal plate is adjusted. It can also be a bolt contact surface. Furthermore, the 1st brake connection means of this invention, the 2nd brake connection means, and the mechanical brake connection means are not restricted to a brake wire like the above-mentioned form example. The rear wheel brake may be a hydraulic brake and the front wheel brake may be a mechanical brake.

  DESCRIPTION OF SYMBOLS 1 ... Brake device, 2 ... Front wheel brake, 2a ... Disc rotor, 2b ... Caliper body, 3 ... Rear wheel brake, 3a ... Back plate, 3b ... Brake shoe, 3c ... Anchor pin, 4 ... Front wheel brake operator, 4a ... Operating lever, 5 ... Brake operator for rear wheel, 5a ... Operating lever, 6 ... Handle bar, 7 ... First brake wire, 8 ... Hydraulic pipe, 9 ... Second brake wire, 10 ... Brake wire for rear wheel , 11 ... reservoir, 12 ... piping, 20 ... master cylinder unit, 21 ... hydraulic master cylinder, 21a ... cylinder body, 21b ... cylinder hole, 21c ... raised portion, 21d ... boss hole, 21e ... first wire guide portion, 21f ... 2nd wire guide part, 21g ... bolt hole, 21h ... engagement piece, 21i ... lever holder, 21j ... stopper bolt mounting boss part, 2 k: second rotating lever contact surface, 21 m: rear wheel brake wire guide part, 22: piston, 22a ... circlip, 23 ... banjo, 24 ... banjo bolt, 25 ... liquid passage pipe, 25a ... first pipe Part, 25b ... second pipe part, 26 ... delay spring, 26a ... attachment part, 26b ... winding part, 27 ... stopper bolt, 27a ... seat surface, 28 ... fixing pin, 29 ... adjustment bolt, 30 ... connection pin, DESCRIPTION OF SYMBOLS 40 ... Lever mechanism, 41 ... 1st turning lever, 41a ... Turning base, 41b ... Adjust bolt attachment part, 41c ... 1st brake wire connection part, 42 ... 2nd turning lever, 42a ... Turning base, 42b ... connecting arm, 42c ... clamping piece, 42d ... engagement protrusion, 42e ... knocker pushing part, 42f ... body abutting surface, 43 ... knocker, 43a ... turning base, 43b ... piston pushing part, 3c ... Piston contact portion, 43d ... Adjust bolt contact surface, 43e ... Projection, 43f ... Second rotation lever contact surface, 44 ... Equalizer lever, 44a ... Second rotation lever connecting portion, 44b ... Rear wheel Brake wire connecting portion, 44c ... second brake wire connecting portion, 45 ... pin member, 45a ... head

Claims (2)

One of the front wheel brake and the rear wheel brake is a hydraulic brake, the other is a mechanical brake, and a master cylinder unit formed by combining a hydraulic master cylinder and a lever mechanism by operating the first brake operator. The hydraulic brake is operated independently, and the hydraulic brake and the mechanical brake are operated in conjunction with each other via the master cylinder unit by operating the second brake operator,
The lever mechanism includes a first rotation lever, a second rotation lever, a knocker, and an equalizer lever, and connects a first brake connecting means connected to the first brake operator to the first rotation lever. By operating the first brake operator, the piston of the hydraulic master cylinder is operated via the knocker in which the first rotating lever is pushed, and the hydraulic brake is operated independently, and the equalizer The lever is connected to second brake connecting means connected to the second brake operator, mechanical brake side connecting means connected to the mechanical brake, and the second rotating lever, and the second brake operator is connected to the lever. By operating, the mechanical brake side connecting means is pulled through the equalizer lever to operate the mechanical brake, and the equalizer lever is moved forward. A bar handle that rotates the second rotation lever and operates the piston of the hydraulic master cylinder via the knocker that the second rotation lever pushes to operate the hydraulic brake in conjunction. In a vehicle brake device,
The first rotating lever includes an adjustment bolt mounting portion, and the knocker has an adjustment bolt abutting to which a retainer member that abuts the tip of the adjusting bolt that is mounted on the adjustment bolt mounting portion so as to adjust the protruding amount is abutted. With a surface,
The second turning lever is formed with a knocker pushing portion for pushing the knocker,
The knocker has a protrusion that protrudes in the direction of the second rotation lever, and a second rotation lever contact surface that is pushed by the knocker pressing portion is formed on the protrusion. The brake apparatus for a bar handle vehicle , wherein the rotating lever contact surface and the adjustment bolt contact surface are formed as a continuous surface . 2. The brake apparatus for a bar handle vehicle according to claim 1, wherein the retainer member is formed by a head portion of a pin member embedded in the adjustment bolt contact surface .

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