JP2006111030A - Brake device for handlebar vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brake device structured so that an interlocking mechanism is mounted in the neighborhood of a brake pedal, capable of arranging a brake pedal tying means, a rear wheel brake tying means, and a front wheel brake tying means in good effect without bending them and of generating a good operating feeling. <P>SOLUTION: The brake pedal tying means 20 tied with the brake pedal 3, the front wheel brake tying means 19 tied with a front wheel brake 7, and the rear wheel brake tying means 16 tied with a rear wheel brake 6 are coupled with the interlocking mechanism 8. The brake pedal tying means 20 is towed in the horizontal direction toward ahead of the vehicle so as to actuate the interlocking mechanism 8, and with actuation of the interlocking mechanism 8, tows the rear wheel brake tying means 16 in the horizontal direction toward ahead of the vehicle, and also the front wheel brake tying means 19 in the horizontal direction toward behind the vehicle. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a brake device used in various bar handle vehicles such as motorcycles, motor tricycles, and three- and four-wheel buggy vehicles. More specifically, the present invention relates to front and rear by a brake operation of a first brake operator. The present invention relates to a brake apparatus for a bar handle vehicle having a structure in which both wheel brakes are operated in conjunction with each other.

A brake device for a vehicle in which a brake lever for operating the front wheel brake is pivotally supported on the lever holder of the traveling handle and a brake pedal for operating the rear wheel brake is pivotally supported on the lower part of the vehicle. There has been proposed a brake device in which not only a rear wheel brake but also a front wheel brake is operated via an interlocking mechanism having an equalizer member. The equalizer member is connected to the brake pedal connecting means connected to the brake pedal at the center portion, and the front wheel brake connecting means connected to the front wheel brake at one end portion is connected to the rear wheel brake at the other end portion. When the brake connecting means are connected to each other and the brake pedal is braked, the operating force is distributed as a traction force to the rear wheel brake connecting means and the front wheel brake connecting means (see, for example, Patent Document 1). ).
JP 2001-278169 A

  In the foregoing, when the brake pedal is braked and the brake pedal linking means is pulled, the front wheel brake linking means and the rear wheel brake linking means are pulled in directions opposite to the traction direction of the brake pedal linking means. As described above, since the front wheel brake connecting means and the rear wheel brake connecting means are pulled in the same direction, at least one of the front wheel brake connecting means and the rear wheel brake connecting means must be operated in a bent state. In other words, there is a possibility that the transmission of the brake operation is lost and the operation feeling is deteriorated.

  Therefore, the present invention provides a brake device equipped with an interlocking mechanism in the vicinity of the brake pedal, which can be favorably routed without bending the brake pedal connecting means, the rear wheel brake connecting means, and the front wheel brake connecting means, and provides good operation. It aims at providing the brake device for bar handle vehicles which can obtain a feeling, and also aims at making the installation space of an interlocking mechanism compact, and improving the mounting nature to the vehicle of an interlocking mechanism.

  In order to achieve the above object, in the first invention, a brake pedal linking means linked to a brake pedal serving as a first brake operator, a front wheel brake linking means linked to a front wheel brake, and a rear wheel linked to a rear wheel brake In a brake apparatus for a bar handle vehicle having an interlocking mechanism in which the front wheel brake connecting means and the rear wheel brake connecting means are towed together by connecting the brake connecting means to each other and pulling the brake pedal connecting means. The interlocking mechanism is disposed in the vicinity of the brake pedal, and the brake pedal linking means is pulled to the front side of the vehicle by a brake operation of the brake pedal, and through the interlocking mechanism by the pulling operation. The rear wheel brake connecting means is on the vehicle front side, and the front wheel brake connecting means is on the vehicle rear side. It is characterized by being towed respectively to the side.

  In a second aspect of the invention, the traction directions of the brake pedal linking means, the rear wheel brake linking means, and the front wheel brake linking means are horizontal directions.

  In a third aspect of the invention, the interlock mechanism includes an equalizer member and a first link member disposed behind the equalizer member, and the equalizer member has a brake pedal connecting means at one end. The rear wheel brake connecting means is connected to the other end, and one end of the first link member is connected to the other end. The first link member is pivotally supported by a fixed shaft at the other end. The front wheel brake linking means is connected.

  In a fourth aspect of the invention, a second link member is connected between the other end portion of the equalizer member and one end portion of the first link member.

  In a fifth aspect of the invention, the equalizer member is formed in a dogleg shape with a central portion protruding in a pulling direction of the brake pedal connecting means.

  According to a sixth aspect of the invention, there is provided delay means for delaying the timing of towing the front wheel brake linkage means relative to the timing of towing the rear wheel brake linkage means.

  In a seventh aspect of the invention, the interlock mechanism is housed in a housing, and a guide portion for guiding the traction of the front wheel brake connecting means and the rear wheel brake connecting means is provided in the housing.

  In an eighth aspect of the invention, a second brake operator for operating the front wheel brake is provided, and the operating force of the second brake operator is transmitted to the front wheel brake between the second brake operator and the front wheel brake. And an intermediate transmission mechanism for relaying the traction force of the front wheel brake connecting means to the front wheel brake.

  According to the first invention, by brake operation of the brake pedal, the brake pedal linking means is pulled to the vehicle front side, the rear wheel brake linking means is pulled to the vehicle front side, and the front wheel brake linking means is pulled to the vehicle rear side. Since the front and rear wheel brakes are operated, even if an interlocking mechanism is installed in the vicinity of the brake pedal, the brake pedal connecting means and the rear wheel brake connecting means can be handled well without bending. You can get a good feeling of operation. In addition, since the distance between the brake pedal and the interlocking mechanism is shortened, there is no loss in transmission of the brake operation.

  According to the second aspect, the brake pedal connecting means, the rear wheel brake connecting means, and the front wheel brake connecting means can be pulled more smoothly, and the operation feeling can be further improved.

  According to the third invention, the operability of the interlocking mechanism can be improved.

  According to the fourth aspect of the invention, the force can be smoothly transmitted from the other end portion of the equalizer member to the one end portion of the first link member, and the front wheel brake connecting means can be pulled favorably. In addition, if the longitudinal direction of the first link member is disposed along the longitudinal direction of the equalizer member and these are connected via the second link member, the installation space of the interlocking mechanism can be made compact. The mountability of the interlocking mechanism on the vehicle can be improved.

  According to the fifth aspect, the equalizer member and the first link member can be more smoothly connected. Moreover, compared with the case where an equalizer member is made into a simple straight shape, an unnecessary posture change of the equalizer member when towed can be suppressed, and the first link member or the second link member coupled to both ends The traction force can be stably transmitted to the rear wheel brake connecting means.

  According to the sixth aspect, the brake feeling can be improved.

  According to the seventh invention, the interlocking mechanism can be unitized, and the interlocking device can be easily attached. Further, by accommodating the equalizer member and the link member in the housing, it is possible to prevent mud and dust from adhering to the connecting portion of the equalizer member and the link member, and the interlocking device can be operated stably at all times.

  According to the eighth aspect of the invention, the intermediate transmission mechanism can operate the front wheel brake and the rear wheel brake in conjunction by the brake operation of the brake pedal, and can operate the front wheel brake independently by the brake operation of the second brake operator. .

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a first embodiment of the present invention. FIG. 1 is a schematic diagram of a brake device for a bar handle vehicle, FIG. 2 is an explanatory diagram showing an interlocking mechanism in a non-braking state, and FIG. It is explanatory drawing which shows the interlocking mechanism of a state.

  As shown in FIG. 1, a brake device 1 for a bar handle vehicle is connected to a brake arm 2 and is a brake pedal 3 serving as a first brake operator that is swingably supported on a vehicle body frame. A brake lever 5 serving as a second brake operator attached to the handlebar 4 of the vehicle, a rear wheel brake 6 pivotally supported at the rear end of the swing arm, and a front wheel brake 7 pivotally supported at the lower end of the front fork. ing. An interlocking mechanism 8 is disposed in the vicinity of the brake pedal 3, and the front wheel brake 7 and the rear wheel brake 6 are interlocked and operated via the interlocking mechanism 8 by a brake operation of the brake pedal 3. Further, an intermediate transmission mechanism 9 is provided between the brake lever 5 and the front wheel brake 7 to transmit the operating force of the brake lever 5 and the traction force of the brake pedal 3 to the front wheel brake 7.

  The front wheel brake 7 and the rear wheel brake 6 are mechanical leading / trailing type drum brakes. These brakes 6, 7 have a pair of arcuate brake shoes 11, 11 facing each other inside a back plate 10 supported by a front fork or a swing arm, and are spread between the ends of the brake shoes 11, 11. An opening cam shaft 12 and an anchor pin 13 serving as a fulcrum at the time of expansion are disposed, and an operating lever 14 is rotatably fixed to the outer end of the cam shaft 12 protruding from the back plate 10. Shoe return springs 15, 15 are stretched between the brake shoes 11, 11, and the brake shoes 11, 11 are always urged in the diameter reducing direction by the traction force of the shoe return springs 15, 15.

  A rear wheel brake connecting means 16 is connected to the operating lever 14 of the rear wheel brake 6, and a lever return spring 18 is contracted between the operating lever 14 and the cable guide 17 protruding from the back plate 10, so The lever 14 and the rear wheel brake connecting means 16 are always urged in the non-operating direction. The operating lever 14 of the front wheel brake 7 is connected to the first connecting means 19 a of the front wheel brake connecting means 19 that is divided by the intermediate transmission mechanism 9, and from the operating lever 14 and the back plate 10, similarly to the rear wheel brake 6. A lever return spring 18 is contracted between the protruding cable guide 17.

  The interlocking mechanism 8 includes a brake pedal connecting means 20 that connects to the brake pedal 3 via the brake lever 2, a front wheel brake connecting means 19 that connects to the front wheel brake 7, and a rear wheel brake connecting means 16 that connects to the rear wheel brake 6. And the connecting means 16, 19, and 20 are each formed of a brake wire.

  As shown in FIGS. 2 and 3, the interlocking mechanism 8 includes an equalizer member 31, a first link member 32, a second link member 33, and a delay spring 34 accommodated in the housing 30. The equalizer member 31 is formed in a U-shape with the center portion protruding in the pulling direction of the brake pedal linking means 20 (to the right in FIGS. 2 and 3), and at the end of the brake pedal linking means 20 at the center portion. The provided connecting piece 20a is rotatably connected by the first floating shaft 35. The front end shaft portion 16a of the rear wheel brake connecting means 16 is rotatably connected to the one end portion 31a, and is connected to the other end portion 31b. The one end of the short second link member 33 is rotatably connected by a second floating shaft 36.

  The first link member 32 is disposed behind the equalizer member 31 (on the left side in FIGS. 2 and 3), and its longitudinal direction is disposed along the longitudinal direction of the equalizer member 31. 30 is pivotally supported. The other end of the second link member 33 is rotatably connected to one end portion 32a of the first link member 32 by a third floating shaft 38, and the distal end shaft of the front wheel brake connecting means 19 is connected to the other end portion 32b. The part 19b is rotatably connected. In addition, spring mounting pieces 30a and 32c are provided so as to protrude from one end portion 32a of the first link member 32 and the upper portion of the rear wall 30e of the housing 30, respectively, and between these spring mounting pieces 30a and 32c. The delay spring 34 is suspended.

  The front wall 30b of the housing 30 is provided with an insertion hole 30c of the brake pedal linking means 20 and a guide part 30d of the front wheel brake linking means 19 near the lower part of the insertion hole 30c, respectively, and below the rear wall 30e. Is provided with a guide portion 30f of the rear wheel brake linkage means 16. The male screw portion 21a of the wire mounting bolt 21 is screwed to the guide portion 30d, and the male screw portion 21a is fixed by a fixing nut 21b, and the front end shaft portion 19b of the front wheel brake connecting means 19 inserted through the male screw portion 21a. Is connected to the other end 32 b of the first link member 32. Similarly, the male screw portion 21a of the wire mounting bolt 21 is screwed into the guide portion 30f, and the male screw portion 21a is fixed by a fixing nut 21b and is inserted into the male screw portion 21a. The portion 16 a is connected to the one end portion 31 a of the equalizer member 31.

  As described above, in the housing 30 that accommodates each member, the traction directions of the brake pedal linking means 20 and the rear wheel brake linking means 16 are the front side of the vehicle (in this embodiment, further in the horizontal direction). The connecting means 19 is mounted on the vehicle so that the pulling direction of the connecting means 19 is on the rear side of the vehicle (in the present embodiment, further in the horizontal direction).

  As the intermediate transmission mechanism 9, for example, a brake unit having a plurality of rotating levers as shown in Japanese Patent Application Laid-Open No. 2000-53064 is used. The connecting means 22, the first connecting means 19a of the front wheel brake connecting means 19 divided by the intermediate transmission mechanism 9, and the second connecting means 19c are connected to each other, and by operating the brake lever 5, the brake lever is connected. The front wheel brake 7 is actuated via the means 22, the intermediate transmission mechanism 9, and the first connection means 19a, and the brake pedal 3 is operated to operate the second connection means 19c, the intermediate transmission mechanism 9, and the first connection means 19a. Through which the front wheel brake 7 is operated.

  In the brake device 1 configured as described above, when the brake pedal 3 is braked, the brake pedal connecting means 20 is pulled to the front side in the horizontal direction (right side in FIGS. 2 and 3). The equalizer member 31 connected to the connecting piece 20a of the brake pedal connecting means 20 has the other end 31b maintained at the initial position by the traction force of the delay spring 34, and the one end 31a is centered on the second floating shaft 36. Rotate forward. Along with this, the rear wheel brake connecting means 16 connected to the one end 31a of the equalizer member 31 is pulled to the front side of the vehicle in the horizontal direction, and the operation lever 14 of the rear wheel brake 6 is rotated integrally with the cam shaft 12. The brake shoes 11, 11 expand with the anchor pin 13 as a fulcrum, the brake shoes 11, 11 come into sliding contact with the inner peripheral surface of the brake drum, and the rear wheel brake 6 enters the braking state. When the brake pedal linking means 20 is further pulled, the other end portion 31 b of the equalizer member 31 moves forward of the vehicle against the pulling force of the delay spring 34, and the first link member 32 via the second link member 33. One end portion 32a is rotated around the fixed shaft 37 toward the front of the vehicle, and the other end portion 32b is rotated toward the rear of the vehicle. Along with this, the second connecting means 19c of the front wheel brake connecting means 19 connected to the other end 32b of the first link member 32 is pulled toward the rear side in the horizontal direction (left side in FIGS. 2 and 3). This traction force is transmitted to the first linking means 19a via the intermediate transmission mechanism 9, and the operation lever 14 of the front wheel brake 7 rotates integrally with the camshaft 12 by pulling the first linking means 19a. The brake shoes 11, 11 expand with the anchor pin 13 as a fulcrum, the brake shoes 11, 11 come into sliding contact with the inner peripheral surface of the brake drum, and the front wheel brake 7 enters the braking state.

  On the other hand, when the brake lever 5 is braked, the brake lever linking means 22 is pulled, the first linking means 19a is pulled via the intermediate transmission mechanism 9, and the front wheel brake 7 is in a braking state as described above.

  In the present embodiment, as described above, the brake pedal linking means 20 is pulled to the front side in the horizontal direction, and by this traction, the rear wheel brake linking means 16 is moved to the front side in the horizontal direction and the front wheel brake linking means 19 is moved to the horizontal direction. Since the front and rear wheel brakes 7 and 6 are actuated by pulling to the rear side of the vehicle, even if the interlocking device 8 is disposed near the brake pedal 3 below the vehicle, the brake pedal linking means 20 and The rear wheel brake linking means 16 and the front wheel brake linking means 19 can be favorably routed without being bent, and a good operation feeling can be obtained. Moreover, since the distance between the brake pedal 3 and the interlocking mechanism 8 can be shortened, there is little loss in transmission of the brake operation.

  Further, in the above-described interlocking mechanism 8, the equalizer member 31 is formed in a dogleg shape in which the central portion protrudes in the pulling direction of the brake pedal connecting means 20, so that compared to a case where the equalizer member has a simple straight shape. Thus, an unnecessary posture change of the equalizer member 31 when towed can be suppressed, and the second link member 33 connected to the both end portions 31a and 31b and the rear wheel brake linking means 16 can stably exert a traction force. I can tell you.

  Further, the longitudinal direction of the first link member 32 is disposed along the longitudinal direction of the equalizer member 31, and the other end portion 31b of the equalizer member 31 and the one end portion 32a of the first link member 32 are connected to the second link. Since the connection is made via the member 33, the operation of the first equalizer member 31 can be smoothly transmitted to the first link member 32. Furthermore, since the equalizer member 31 and the first link member 32 are configured as described above, the housing 30 can be made compact, and the insertion hole 30c and the guide portion 30d of the housing 30 are provided close to each other. Thus, the brake pedal connecting means 20 and the front wheel brake connecting means 19 are close to each other, and the space for disposing both the connecting means 20 and 19 from the housing 30 to the vehicle can be reduced. And the mountability of the interlocking mechanism 8 on the vehicle can be improved.

  Further, by providing the delay spring 34 as the delay means, the timing of pulling the front wheel brake linkage means 19 relative to the timing of pulling the rear wheel brake linkage means 16 is delayed, and the front wheel brake 7 is operated after the rear wheel brake 6 is operated. Since it act | operates, the improvement of a brake feeling can be aimed at. Furthermore, since the equalizer member 31 and the first and second link members 32 and 33 are accommodated in the housing 30, the interlock device 8 can be easily attached to the vehicle, and the equalizer member 31 and the first and second links are also provided. It is possible to prevent mud and dust from adhering to the connecting portions of the members 32 and 33, and the interlocking device can be operated stably at all times. Further, by providing the intermediate transmission mechanism 9, the front wheel brake 7 and the rear wheel brake 6 are operated in conjunction by the brake operation of the brake pedal 3, and the front wheel brake 7 is operated independently by the brake operation of the brake lever 5. be able to.

  4 and 5 show second and third embodiments of the present invention to which another type of interlocking mechanism is applied, and the same members as those in the first embodiment are given the same reference numerals, Detailed description thereof is omitted.

  In the second embodiment shown in FIG. 4, the insertion hole 33a through which the third floating shaft 38 of the second link member 33 is inserted is formed as a long hole that is long in the moving direction of the second link member 33, so The floating shaft 38 is positioned on the counter-delay spring side of the insertion hole 33a. Thereby, the timing of pulling the front wheel brake linkage means 19 relative to the timing of pulling the rear wheel brake linkage means 16 can be adjusted by the delay spring 34 and the insertion hole 33a.

  In the third embodiment shown in FIG. 5, a link member 42 pivotally supported by a fixed shaft 41 provided in the center is provided in a housing 40, and a brake 42 is provided at one end 42 a of the link member 42. The pedal connection means 20 and the rear wheel brake connection means 16 are connected to each other in the vehicle front-rear direction, and the front wheel brake connection means 19 is connected to the other end portion 42b. Has been.

  The front wheel brake of the present invention is not limited to a mechanical drum brake, and any type of brake may be used. When a hydraulic brake is used, a known hydraulic master cylinder unit is used for an intermediate transmission mechanism. May be used. Also, the brake pedal connecting means and the rear wheel brake connecting means can be formed of a rod. Further, the delay means may be omitted.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a bar handle vehicle brake device showing a first embodiment of the present invention. It is explanatory drawing which similarly shows the interlocking mechanism of a non-braking state. It is explanatory drawing which similarly shows the interlocking mechanism of a braking state. It is explanatory drawing of the interlocking mechanism which shows the 2nd form example of this invention. It is explanatory drawing of the interlocking | linkage mechanism which shows the 3rd form example of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Brake device, 2 ... Brake arm, 3 ... Brake pedal, 4 ... Handlebar, 5 ... Brake lever, 6 ... Rear wheel brake, 7 ... Front wheel brake, 8 ... Interlocking mechanism, 9 ... Intermediate transmission mechanism, 10 ... Back Plate, 11 ... Brake shoe, 12 ... Cam shaft, 13 ... Anchor pin, 14 ... Actuating lever, 15 ... Shoe return spring, 16 ... Rear wheel brake connecting means, 16a ... Tip shaft, 17 ... Cable guide, 18 ... Lever Return spring, 19 ... front wheel brake connecting means, 19a ... first connecting means, 19b ... tip shaft portion, 19c ... second connecting means, 20 ... brake pedal connecting means, 20a ... connecting piece, 21 ... wire mounting bolt, 21a ... Male thread portion, 21b ... fixing nut, 22 ... brake lever connecting means, 30, 40 ... housing, 30a ... spring mounting piece, 30d, 30f ... Id part, 31 ... equalizer member, 31a ... one end part, 31b ... other end part, 32 ... first link member, 32a ... one end part, 32b ... other end part, 32c ... spring mounting piece, 33 ... second link member, 33a ... insertion hole, 34 ... delay spring, 35 ... first floating shaft, 36 ... second floating shaft, 37, 41 ... fixed shaft, 38 ... third floating shaft, 42 ... link member, 42a ... one end, 42b ... The other end

Claims (8)

Brake pedal linking means linked to the brake pedal serving as the first brake operator, front wheel brake linking means linked to the front wheel brake, and rear wheel brake linking means linked to the rear wheel brake are respectively connected, and the brake pedal linked. In the bar handle vehicle brake device having an interlocking mechanism that pulls the front wheel brake connecting means and the rear wheel brake connecting means in conjunction with each other, the interlocking mechanism is arranged in the vicinity of the brake pedal. The brake pedal linking means is pulled to the vehicle front side by a brake operation of the brake pedal, and the rear wheel brake linking means is moved to the vehicle front side via the interlocking mechanism by the traction operation. The front wheel brake linking means is pulled to the rear side of the vehicle. Over handle vehicle brake system. 2. The bar handle vehicle brake device according to claim 1, wherein traction directions of the brake pedal linking means, the rear wheel brake linking means, and the front wheel brake linking means are horizontal directions. The interlocking mechanism includes an equalizer member and a first link member disposed behind the equalizer member. The equalizer member includes a brake pedal connecting means at a center and the rear wheel brake at one end. One end of the first link member is connected to the other end portion of the connecting means, the center portion of the first link member is pivotally supported by a fixed shaft, and the front wheel brake connecting means is connected to the other end portion. The bar handle vehicle brake device according to claim 1, wherein the bar handle vehicle brake device is connected. 4. The brake device for a bar handle vehicle according to claim 3, wherein a second link member is connected between the other end portion of the equalizer member and one end portion of the first link member. 4. The bar handle vehicle brake device according to claim 3, wherein the equalizer member is formed in a dogleg shape with a central portion protruding in a pulling direction of the brake pedal connecting means. 5. The bar handle vehicle brake device according to any one of claims 1 to 5, further comprising delay means for delaying a timing of towing the front wheel brake linkage means with respect to a timing of towing the rear wheel brake linkage means. . 7. The interlock mechanism is housed in a housing, and a guide portion is provided in the housing for guiding the traction of the front wheel brake linking means and the rear wheel brake linking means. The brake apparatus for bar handle vehicles as described. A second brake operator for operating the front wheel brake; and an operating force of the second brake operator is transmitted to the front wheel brake between the second brake operator and the front wheel brake; The bar handle vehicle brake device according to any one of claims 1 to 7, further comprising an intermediate transmission mechanism that relays the traction force of the vehicle to the front wheel brake.

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