JP2005212676A - Interlocking brake device for compact vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To arrange a front wheel brake system and a rear wheel brake system at a desirable angle in relation to each other, in regard to an interlocking brake device to be used for a motorcycle. <P>SOLUTION: This interlocking brake device for a compact vehicle has the front wheel brake operation system F and the rear wheel brake operation system R, and this duplex interlocking brake device is provided with an interlocking device 6 for operating the front wheel brake operation system F when operating the rear wheel brake operation system R. The front wheel brake operation system F and the rear wheel brake operation system R are arranged at an angle in relation to each other in a part wherein the interlocking device 6 is provided. The interlocking device 6 is provided with a direction converting means H for converting a part of operating force of the rear wheel brake operation system R to force in an operating direction of the front wheel brake operation system F and for transmitting the power to the front wheel brake operation system F. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a brake device used in a small vehicle such as a motorcycle or a three-wheeled motor vehicle, and in particular, has a front wheel brake operation system and a rear wheel brake operation system, and operates the front wheel brake operation when the rear wheel brake operation system is operated. The present invention relates to an interlocking brake device for a small vehicle including an interlocking device that operates the system in conjunction with each other.

  For example, in a motorcycle interlocking brake device, only the front wheel brake is activated when the front wheel brake lever is operated, but not only the rear wheel brake but also the front wheel brake is operated when the rear wheel brake lever is operated. It has become. Therefore, the interlocking brake device for a motorcycle is provided with a plurality of brake operation systems and an interlocking device for interlocking these brake operation systems.

As such an interlocking device, there is one that is described in Patent Document 1 in the past. The interlock device houses the equalizer lever in an equalizer case installed near the head pipe of the motorcycle, and connects the input cable of the rear wheel brake operating system connected to the rear wheel brake lever to the middle part of the equalizer lever. In addition, an output cable for operating the rear wheel brake and an output cable for operating the front wheel brake are respectively connected to both ends of the equalizer lever. According to such an interlocking device, when the rear wheel brake lever is operated and the input cable of the rear wheel brake operation system is pulled, the middle portion of the equalizer lever is pulled, and accordingly, the output cable on the rear wheel brake side is pulled. As a result, the rear wheel brake operates. When the load on the rear wheel brake side reaches a certain level, the output cable on the front wheel brake side is also pulled, so that the front wheel brake operates together with the rear wheel brake.
JP 2000-309294 A

  However, as described in Patent Document 1, all the input cables and output cables are connected to the equalizer lever, and the plurality of output cables are pulled by pulling the input cables. Since the operation direction of the equalizer lever is almost parallel to each cable, it is necessary to arrange all the cables in parallel. For this reason, the degree of freedom of arrangement of each brake operation system including the interlocking device is limited. In addition, since the operating range of the equalizer lever is relatively wide depending on the operating state of each cable, there is a limit to downsizing the equalizer case.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an interlock brake device for a small vehicle that has a high degree of freedom in arrangement and can be configured compactly.

  In order to achieve the above object, the present invention has a front wheel brake operating system and a rear wheel brake operating system, and when the rear wheel brake operating system is operated, the front wheel brake operating system is also operated in conjunction. In the interlock brake device for a small vehicle provided with the device, the front wheel brake operation system and the rear wheel brake operation system are arranged so as to form an angle with each other at an installation site of the interlock device. A first feature is provided with direction changing means for converting a part of the operating force of the rear wheel brake operating system into a force in the operating direction of the front wheel brake operating system and transmitting the force to the front wheel brake operating system. Here, “the front wheel brake operation system and the rear wheel brake operation system form an angle with each other” means that they are not in the same direction, and each brake operation system has an angle of 180 °. It is also included in the present invention if it is arranged.

  In addition to the first feature, the present invention has a second feature in that the front wheel brake operation system and the rear wheel brake operation system are arranged so as to intersect at the interlocking device installation site. .

  In addition to the first feature of the present invention, the direction changing means includes a first arm that engages an interlocking operation member fixed to an inner cable of the front wheel brake operation system, and the rear wheel brake operation system. A third feature is that it is constituted by a second arm that supports the outer casing of the input or output cable, and a connecting shaft that connects the first and second arms at an angle and is rotatably supported. To do.

  Furthermore, in addition to the third feature, the present invention is such that at least one of the first and second arms is detachably connected to the connecting shaft, and an angle formed by these arms is determined. A fourth feature is that it can be arbitrarily adjusted.

  In addition to the third or fourth feature, the present invention supports an input side support portion that supports an outer casing of an input cable of the front wheel brake operation system, and an outer casing of an output cable of the front wheel brake operation system. A fifth feature is that the output-side support portion is provided on the same support member.

  Furthermore, in addition to the fifth feature of the present invention, the support member is provided with a projecting portion projecting sideways from a straight line connecting the input side support portion and the output side support portion. A sixth feature is that the connecting shaft is rotatably supported by the portion.

  According to the sixth feature, the direction changing means is also supported by one support member that supports the outer casing of the front wheel brake operation system, so that the number of parts is reduced and the entire interlocking device is made more compact. It becomes possible to comprise.

  In addition to the fifth feature, the present invention provides a non-operating direction of the front wheel brake operating system by an elastic body in which at least one of the first and second arms is provided between the supporting member and the support member. It is the seventh feature that it is energized.

  In addition to the fifth feature of the present invention, the support member is formed as a case, and one of the first and second arms is disposed in the case, and the other is the case. An eighth feature is that it is disposed outside.

  According to the first aspect of the present invention, the linking device is operated by the direction changing device that converts a part of the operating force of the rear wheel brake operation system into the force in the operation direction of the front wheel brake operation system and transmits the force to the front wheel brake operation system. Therefore, the front wheel brake operation system and the rear wheel brake operation system can be arranged at an angle at the installation site of the interlocking device. That is, since it is not necessary to arrange the front wheel brake operation system and the rear wheel brake operation system in parallel, the degree of freedom of the arrangement can be increased. In addition, since the operating range is limited by arranging the front wheel brake operation system and the rear wheel brake operation system at an angle, the size of the interlocking device can be reduced.

  Further, according to the second feature of the present invention, the front wheel brake operating system and the rear wheel brake operating system are arranged so as to intersect at the installation site of the interlocking device, so that the front wheel provided in the vicinity of the interlocking device is arranged. The support parts of the brake operation system and the rear wheel brake operation system can be integrated, so that the installation site of the interlocking device can be made compact.

  Furthermore, according to the third aspect of the present invention, the direction changing means is constituted by the first arm and the second arm, and a rotatable connecting shaft that connects the first and second arms at an angle. The direction changing means has a very simple structure and can be miniaturized. Therefore, the whole interlocking device can be configured compactly. Further, since the force is transmitted between the brake operation systems by rotation, the operation can be made smooth. Furthermore, according to the fourth aspect of the present invention, at least one of the first and second arms can be attached to and detached from the connecting shaft, and the angle formed by these arms can be arbitrarily adjusted. As a result, the front wheel brake operation system and the rear wheel brake operation system can be interlocked in any direction. Therefore, the degree of freedom of arrangement of each brake operation system can be further increased. In addition, the first and second arms and the connecting shaft can be used for other vehicle types, and an increase in the number of parts can be prevented and the assembling work can be facilitated.

  According to the fifth aspect of the present invention, the input side support portion that supports the outer casing of the input cable of the front wheel brake operation system, and the output side support portion that supports the outer casing of the output cable of the front wheel brake operation system. Are provided on the same support member, the number of parts can be reduced compared to the case where the input side support portion and the output side support portion are provided on separate members, and the configuration is extremely simple. It can be. In addition, since the distance between the input side support portion and the output side support portion can be kept constant, the operation of the front wheel brake operation system can be ensured.

  Further, according to the sixth aspect of the present invention, the support member provided with the input side support portion and the output side support portion of the front wheel brake operation system is connected to the straight line connecting the input side support portion and the output side support portion. Since a projecting part that projects to the side is provided and the connecting shaft is rotatably supported by the projecting part, even the direction changing means is supported by one support member, and the number of parts is reduced. As a result, the entire interlocking device can be made more compact.

  Furthermore, according to the seventh feature of the present invention, at least one of the first and second arms is biased in the non-operating direction of the front wheel brake operating system by an elastic body provided between the first arm and the second arm. Thus, after the rear wheel brake is activated, the brake operation force is properly distributed to the front wheel brake operation system so that the front wheel brake is also activated, and stable braking can be performed. In addition, since it is not necessary to separately provide a member that supports the elastic body, an increase in the number of parts can be prevented and the operation thereof can be ensured.

  According to the eighth aspect of the present invention, the support member is formed as a case, and one of the first and second arms is disposed in the case, and the other is disposed outside the case. As a result, the movable parts exposed to the outside can be reduced, and the degree of freedom of arrangement of the interlocking device can be further increased.

  Hereinafter, embodiments of the present invention will be described based on preferred examples of the present invention shown in the accompanying drawings.

  1 is a system diagram of a motorcycle interlocking brake device according to a first embodiment of the present invention, FIG. 2 is a cross-sectional side view of the main part of the interlocking brake device, and FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 4 and 4 show different operating states, a sectional view similar to FIG. 2, FIG. 5 shows a further different operating state, sectional views similar to FIG. 2, and FIG. 6 shows the main part of the second embodiment of the present invention. FIG. 7 is a system diagram of a third embodiment of the present invention.

  First, a first embodiment of the present invention shown in FIGS. 1 to 5 will be described.

  In FIG. 1, a steering wheel 1 of a motorcycle is supported by a front wheel brake lever 2f adjacent to the right grip 1a and a rear wheel brake lever 2r adjacent to the left grip 1b. The front wheel brake lever 2f is connected to the actuating lever 4f of the drum type front wheel brake Bf via the inner cable 3a of the front wheel brake operation cable 3, and the rear wheel brake lever 2r is connected to the rear wheel brake operation cable 5 via the inner cable 5a. The drum type rear wheel brake Br is connected to the operating lever 4r. The operating levers 4f and 4r of the brakes Bf and Br are urged in the non-operating direction by return springs 21f and 21r, respectively.

  Thus, in this motorcycle interlocking brake device, the front wheel brake operating system F from the front wheel brake lever 2f through the front wheel brake operating cable 3 to the operating lever 4f of the front wheel brake Bf and the rear wheel brake lever 2r Two brake operation systems are provided, a rear wheel brake operation system R that reaches the operation lever 4r of the rear wheel brake Br via the wheel brake operation cable 5.

  The front wheel brake operation cable 3 and the rear wheel brake operation cable 5 are connected to each other via an interlocking device 6 at an intermediate portion thereof. As will be described later, when the front wheel brake lever 2f is operated, the front wheel brake Bf operates independently. When the rear wheel brake lever 2r is operated, the rear wheel brake Br and the front wheel brake Bf are operated in conjunction by the interlocking device 6.

  The interlocking device 6 includes a case 7 as a support member. As shown in FIGS. 2 and 3, the case 7 has a container-like shape with the back side open, and is fixed to the side surface near the head pipe 9 h of the vehicle body 9 of the motorcycle by the bolts 8, thereby A space 7a in the case is formed between them. The inner cable 3a of the front wheel brake operation cable 3 is disposed so as to penetrate the case 7 in the vertical direction and pass through the case inner space 7a. The case 7 is provided with an input-side support portion 10 that supports the outer casing 3b on the input side of the front-wheel brake operation cable 3 and an output-side support portion 11 that supports the outer casing 3c on the output side in a straight line. It has been. Further, the case 7 is provided with an overhanging portion 12 projecting sideways (in the embodiment, rearward, that is, rightward in FIG. 2) from a straight line connecting the input side support portion 10 and the output side support portion 11. .

  The front wall of the case 7 is provided with a boss portion 12a at the tip side portion of the overhang portion 12, and the connecting shaft 13 is rotatably supported by the boss portion 12a. The connecting shaft 13 protrudes inward and outward of the case 7, a flat portion is formed in the protruding portion 13 a on the case inner space 7 a side, and a serration is formed in the protruding portion 13 b on the outer side of the case 7. And the base end part of the 1st arm 14 is fitted by the protrusion part 13a by the side of the case inner space 7a which has the plane part, Thereby, the 1st arm 14 is connected with the connection shaft 13 so that rotation is impossible. . Further, the base end portion of the second arm 15 is fitted to the protruding portion 13 b having the serration outside the case 7 of the connecting shaft 13. An opening portion is provided at the base end portion of the second arm 15, and the second arm 15 is non-rotatably connected to the connecting shaft 13 by tightening the opening portion with a bolt 16. Therefore, if the bolt 16 is loosened, the second arm 15 can be detached from the connecting shaft 13, and the angle formed by the first arm 14 and the second arm 15 can be arbitrarily adjusted.

  Thus, the first arm 14 is disposed inside the case 7 and the second arm 15 is disposed outside the case 7, and they are connected to each other at a fixed angle so as to be rotatably supported while maintaining the state. Is done. As will be described later, the first arm 14 and the second arm 15 and the connecting shaft 13 for connecting them constitute a direction changing means H.

  The front end portion of the first arm 14 is formed in a bifurcated shape, and the inner cable 3a of the front wheel brake operation cable 3 is passed between them. A substantially spherical interlocking operation member 17 having a larger diameter is fixed to the inner cable 3a. The distal end portion of the first arm 14 can be engaged with the interlocking operation member 17 from below. A set spring 18 is provided between the upper end wall of the case 7 and the tip side portion of the first arm 14 with a predetermined compressive load applied. The first arm 14 is counterclockwise in FIG. That is, the front wheel brake operation system F is biased in the non-operating direction.

  An output side support portion 20 that supports the outer casing 5c on the output side of the rear wheel brake operation cable 5 is provided at the distal end portion of the second arm 15. On the other hand, the vehicle body 9 is provided with an input side support portion 19 in the vicinity of the case 7 for supporting the input side outer casing 5 b of the rear wheel brake operation cable 5.

  In the case of the illustrated example, the first arm 14 and the second arm 15 are connected so as to form an acute angle. Therefore, the front wheel brake operation cable 3 and the rear wheel brake operation cable 5 are arranged so as to form an angle with each other at an installation site of the interlocking device 6 and intersect at that site.

  A stopper wall 7b that supports the upper surface of the first arm 14 and restricts the upper swing limit thereof is integrally projected on the inner surface of the case 7.

  Next, the operation of the first embodiment will be described.

  The inner cable 3a of the front wheel brake operation cable 3 and the inner cable 5a of the rear wheel brake operation cable 5 are in the non-operating direction, that is, FIG. 2 by return springs 21f and 21r respectively provided on the front wheel brake Bf and the rear wheel brake Br. Is biased downward. Further, a counterclockwise urging force is applied to the first arm 14 by a set spring 18. Therefore, when the front wheel brake Bf and the rear wheel brake Br are not operated, as shown in FIG. 2, the first arm 14 rotates counterclockwise and is held in contact with the lower wall of the case 7, The interlocking operation member 17 fixed to the inner cable 3 a of the front wheel brake operation cable 3 is held in contact with the upper surface of the first arm 14.

  In this state, when the front wheel brake lever 2f is operated to pull the inner cable 3a of the front wheel brake operation cable 3, the traction force is transmitted as it is to the operation lever 4f of the front wheel brake Bf, so that the front wheel brake Bf is operated. At this time, as shown in FIG. 4, the interlocking operation member 17 fixed to the inner cable 3 a of the front wheel brake operation cable 3 rises and separates from the first arm 14. Since the urging force of the spring 18 is applied, there is no influence on the rear wheel brake operation system R. When the operating force of the front wheel brake lever 2f is released, the operating lever 4f of the front wheel brake Bf is returned to the original position by the urging force of the return spring 21f, so that the front wheel brake Bf is inactivated.

  Further, when the rear wheel brake lever 2r is operated, first, the inner cable 5a of the rear wheel brake operation cable 5 is pulled, and the traction force is transmitted to the operation lever 4r of the rear wheel brake Br, so that the rear wheel brake Br is operated. . At this time, the reaction force generated in the outer casing 5c on the output side of the rear wheel brake operation cable 5 applies a force to rotate the second arm 15 supporting the outer casing 5c in the clockwise direction. . However, as long as the force to be rotated is smaller than the rotation restricting force applied to the first arm 14 by the set spring 18, the first and second arms 14 and 15 are held as they are. The

  In this state, when the rear wheel brake lever 2r is continuously operated and the reaction force generated in the outer casing 5c on the output side of the rear wheel brake operation cable 5 is further increased, the second arm 15 is caused to rotate clockwise. The force to perform exceeds the rotation restricting force by the set spring 18. Then, the first and second arms 14 and 15 are integrally rotated around the axis of the connecting shaft 13 in the clockwise direction. As a result, as shown in FIG. 5, the interlocking operation member 17 engaged with the tip of the first arm 14 is pushed up, and the inner cable 3a of the front wheel brake operation cable 3 to which the interlocking operation member 17 is fixed. Is raised. Accordingly, the front wheel brake Bf is activated.

  As described above, when the rear wheel brake lever 2r is operated, first, all of the brake operation force is transmitted only to the rear wheel brake Br and is operated, and then the brake operation force is applied to the rear wheel brake Br and the rear wheel brake Br. Properly distributed to the front brakes Br and actuates them simultaneously. Thereby, stable braking of the motorcycle is performed.

  When the rear wheel brake lever 2r is further operated, the first arm 14 finally comes into contact with the stopper wall 7b of the case 7 and is further prevented from swinging. Only the inner cable 5a of the rear wheel brake operation cable 5 is restricted. Since the vehicle is towed, the braking force of the rear wheel brake Br can be increased while the braking force of the front wheel brake Bf is kept constant.

  The set spring 18 can be used for the purpose of providing a time lag from the start of operation of the rear wheel brake Br to the start of operation of the front wheel brake Bf when the rear wheel brake lever 2r is operated.

  When the operating force of the rear wheel brake lever 2r is released, the operating levers 4f and 4r of the front wheel brake Bf and the rear wheel brake Br are returned to their original positions by the urging forces of the return springs 21f and 21r. Both the rear wheel brakes Br are inactivated. Further, since the first arm 14 is rotated counterclockwise by the urging force of the set spring 18, the interlocking device 6 returns to the state shown in FIG.

  As described above, when the rear wheel brake lever 2r is operated to pull the inner cable 5a of the rear wheel brake operation cable 5, the reaction force generated in the outer casing 5c on the output side of the rear wheel brake operation cable 5, that is, the rear wheel A part of the operating force of the brake operation system R is applied to the second arm 15, and the second arm 15 is rotated together with the first arm 14 in the clockwise direction. The inner cable 3 a of the front wheel brake operation cable 3 is pulled by the rotation of the first arm 14. That is, a part of the operating force of the rear wheel brake operation system R is converted into a force in the operation direction of the front wheel brake operation system F, and the force is transmitted to the front wheel brake operation system F. Thus, in this embodiment, the direction changing means H is constituted by the first arm 14 and the second arm 15 and the connecting shaft 13 which fixes and connects them.

  By providing such direction changing means H, it is not necessary to arrange the front wheel brake operation cable 3 and the rear wheel brake operation cable 5 in parallel at the installation site of the interlocking device 6. Increase. Further, since the operation range is limited by arranging the front wheel brake operation cable 3 and the rear wheel brake operation cable 5 at an angle, the size of the interlocking device 6 can be reduced. Can do. In particular, if the front wheel brake operation cable 3 and the rear wheel brake operation cable 5 are arranged so as to intersect at the installation site of the interlocking device 6, the outer casings 3b, 3c; 5b, 5c of these cables 3, 5 It is possible to collect the support portions 10, 11; 19, 20, so that the site where the interlocking device 6 is installed can be made compact.

  Further, the direction changing means H is constituted by the first arm 14 and the second arm 15 and the rotatable connecting shaft 13 that connects them with a certain angle, so that the direction changing means H is very simple. Since it becomes a thing of a simple structure, it can be reduced in size and the interlocking device 6 whole can be comprised compactly. In addition, since the transmission of force from the rear wheel brake operation system R to the front wheel brake operation system F is performed by rotation, the operation is also smooth.

  Then, at least one of the first arm 14 and the second arm 15 constituting the direction changing means H, in the above embodiment, the second arm 15 is configured to be detachable from the connecting shaft 13, and the first arm 14 and the second arm 15 can be arbitrarily adjusted so that the front-wheel brake operation cable 3 and the rear-wheel brake operation cable 5 are arranged in any direction. Since they can be linked, the degree of freedom of arrangement of the brake operation systems F and R can be further increased. In addition, the first and second arms 14 and 15 and the connecting shaft 13 can be used for other vehicle types, the increase in the number of parts can be prevented, and the assembling work can be facilitated.

  Further, the input side support portion 10 that supports the outer casing 3b on the input side of the front wheel brake operation cable 3 and the output side support portion 11 that supports the outer casing 3c on the output side of the front wheel brake operation cable 3 are provided as a single unit. By providing the case 7 as a member, an increase in the number of parts can be prevented, and the configuration can be simplified. Moreover, since the distance between the input side support portion 10 and the output side support portion 11 is always kept constant, not only can the operation of the front wheel brake operation cable 3 be ensured, The assembling work can also be facilitated.

  The case 7 is provided with a projecting portion 12 projecting sideways from a straight line connecting the input side support portion 10 and the output side support portion 11 of the front wheel brake operation cable 3, and the connecting shaft 13 is provided on the projecting portion 12. By supporting the outer casings 3b and 3c of the front wheel brake operation system F, the direction changing means H can be supported by the single support member, so that the number of parts can be reduced. At the same time, the entire interlocking device 6 can be configured more compactly. Further, it is necessary to separately provide a member for supporting the set spring 18 by providing the set spring 18 for applying the rotation restricting force to the first arm 14 between the first arm 14 and the case 7. Accordingly, the increase in the number of parts can be prevented and the operation of the set spring 18 can be ensured.

  Further, one of the first and second arms 14 and 15, in the above embodiment, the first arm 14 is disposed in the case inner space 7 a formed by the case 7, and the other of the first and second arms 14 and 15 is disposed. By disposing the outer side of the case 7, for example, movable parts such as the first arm 14, the set spring 18, and the interlocking operation member 17 fixed to the inner cable 3 a of the front wheel brake operation cable 3 are covered by the case 7. Since the movable parts exposed to the outside can be reduced, the degree of freedom of arrangement of the interlocking device 6 can be further increased. Further, since the case 7 can be made smaller than when the entire interlocking device 6 is accommodated in the case, the interlocking device 6 can be further reduced in size.

  Next, a second embodiment of the present invention shown in FIG. 6 will be described.

  In the second embodiment, only the arrangement of the rear wheel brake operation cable 5 is different from that of the first embodiment, and other configurations are the same as those of the previous embodiment. The description is omitted by giving the same reference numerals.

  As shown in FIG. 6, in the case of the second embodiment, the outer casing 5 b on the input side of the rear wheel brake operation cable 5 is supported by the input side support portion 22 provided at the distal end portion of the second arm 15. The vehicle body 9 is provided with an output side support portion 23 that supports the outer casing 5c on the output side of the rear wheel brake operation cable 5. The first arm 14 and the second arm 15 are arranged so as to form an obtuse angle.

  Even in the interlocking brake device having such a configuration, when the rear wheel brake lever 2r (see FIG. 1) is operated and the inner cable 5a of the rear wheel brake operation cable 5 is pulled, the rear wheel brake Br is activated and the rear brake is operated. Due to the reaction force generated in the outer casing 5b on the input side of the wheel brake operation cable 5, a force to rotate the second arm 15 supporting the outer casing 5b in the clockwise direction is applied. When the reaction force generated in the outer casing 5b on the input side of the rear wheel brake operation cable 5 becomes larger than a certain level, the second arm 15 rotates together with the first arm 14 around the axis of the connecting shaft 13 in the clockwise direction. The interlocking operation member 17 engaged with the tip of the first arm 14 is pushed up. Therefore, the inner cable 3a of the front wheel brake operation cable 3 to which the interlocking operation member 17 is fixed is pulled up, and the front wheel brake Bf is operated.

  As described above, according to the second embodiment, the front wheel brake Bf can be operated in conjunction with the rear wheel brake Br.

  In the case of the second embodiment, the front wheel brake lever 2f and the rear wheel brake lever 2r provided above the vehicle body 9 cause the inner cable 3a of the front wheel brake operation cable 3 and the inner cable 5a of the rear wheel brake operation cable 5 to be The first arm 14 and the second arm 15 have an obtuse angle, and the front wheel brake operation cable 3 and the rear wheel brake operation cable 5 are arranged so as to cross above the interlocking device 6 in order to be pulled. Is done. Therefore, although the dimension of the interlocking device 6 in the front-rear direction is slightly increased, the same effects as those of the first embodiment can be obtained in other respects. The second embodiment is particularly effective when it is necessary to limit the operating range of the output side wiring.

  In the second embodiment, the lower end of the inner cable 5a of the rear wheel brake operation cable 5 is connected to the brake pedal in order to operate the rear wheel brake operation cable 5 with the brake pedal. In this case, as in the first embodiment, the first arm 14 and the second arm 15 form an acute angle, and the front wheel brake operation cable 3 and the rear wheel brake operation cable 5 intersect at the installation site of the interlock device 6. It can also be.

  Next, a third embodiment of the present invention shown in FIG. 7 will be described.

  In the third embodiment, the present invention is applied to an interlocking brake device for a tricycle, and a connecting device 24 is attached to a rear wheel brake operation cable 5. A pair of output cables 251 and 252 for operating the operating levers 4r1 and 4r2 of the pair of rear wheel brakes Br1 and Br2 are connected to the connecting device 24, respectively. Thus, when the rear-wheel brake operation cable 5 is pulled, the pair of rear-wheel brakes Br1 and Br2 are operated simultaneously. That is, in the case of the third embodiment, the rear wheel brake operation system R is branched into two. Since the other configuration is the same as that of the first embodiment, the same reference numerals are given to the portions corresponding to the first embodiment in the drawing, and the description thereof is omitted.

  Also in the third embodiment, when the rear wheel brake lever 2r is operated, the pair of rear wheel brakes Br1 and Br2 are first operated at the same time, and then the brake operation force is properly distributed to the front wheel brake Bf. Br1 and Br2 and the brake Bf operate in conjunction with each other. Therefore, the same effect as the first embodiment can be obtained.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention. For example, the direction changing means H can be constituted by a pinion rack mechanism or the like in addition to the first and second arms 14 and 15 and the connecting shaft 13 as in the above embodiment. Further, the inner cable 3a of the front wheel brake operation cable 3 is divided into an input side and an output side inside the interlocking device 6, and the interlocking operation member 17 is fixed to the inner cable on the output side. It is also possible to connect the inner cable of the input side with play. Further, as the set spring 18, an elastic body such as rubber or a torsion coil spring mounted around the pivot axis can be used in addition to the coil spring as illustrated.

1 is a system diagram of a motorcycle interlocking brake device according to a first embodiment of the present invention. The cross-sectional side view of the principal part of the said interlocking brake device. Sectional drawing which follows the 3-3 line of FIG. Sectional view similar to FIG. 2 showing different operating states. FIG. 3 is a cross-sectional view similar to FIG. 2, showing a different operating state. The principal part systematic diagram of 2nd Example of this invention. The systematic diagram of 3rd Example of this invention.

Explanation of symbols

2f: Front wheel brake lever 2r: Rear wheel brake lever 3 ... Front wheel brake operation cable 3a ... Inner cable 3b ... Input side outer casing 3c ··· Output side outer casing 4f, 4r ··· Actuating lever 5 ··· Rear wheel brake operation cable 5a ··· Inner cable 5b ··· Input side outer casing 5c ···・ Output-side outer casing 6 ・ ・ ・ ・ ・ ・ Interlocking device 7 ・ ・ ・ ・ ・ ・ Case (supporting member)
DESCRIPTION OF SYMBOLS 10 ... Input side support part 11 ... Output side support part 12 ... Overhang | projection part 13 ... Connection shaft 14 ... 1st arm 15 ...・ Second arm 17 ... Interlocking operation member 18 ... Set spring (elastic body)
19... Input side support portion 20... Output side support portion 22... Input side support portion 23... Output side support portion Bf. Br1, Br2 ··· Rear wheel brake H ··· Direction change means F ··· Front wheel brake operation system R ··· Rear wheel brake operation system

Claims (8)

A front wheel brake operation system (F) and a rear wheel brake operation system (R). When the rear wheel brake operation system (R) is operated, the front wheel brake operation system (F) is also operated in conjunction. In the interlocking device for small vehicles provided with the device (6),
The front wheel brake operation system (F) and the rear wheel brake operation system (R) are arranged at an angle with each other at an installation site of the interlock device (6),
The interlocking device (6) converts a part of the operating force of the rear wheel brake operation system (R) into a force in the operation direction of the front wheel brake operation system (F) and converts it into the front wheel brake operation system (F). An interlocking brake device for a small vehicle, characterized by comprising direction changing means (H) for transmission. In the interlock brake device for small vehicles according to claim 1,
The interlock brake device for a small vehicle, wherein the front wheel brake operation system (F) and the rear wheel brake operation system (R) are arranged so as to intersect at an installation site of the interlock device (6). In the interlock brake device for small vehicles according to claim 1,
The direction changing means (H) includes a first arm (14) engaged with an interlocking operation member (17) fixed to an inner cable (3a) of the front wheel brake operation system (F), and the rear wheel brake. The second arm (15) that supports the outer casing (5b, 5c) of the input or output cable of the operation system (R) and the first and second arms (14, 15) are connected at an angle to be rotatable. An interlocking brake device for a small vehicle, characterized by comprising a connecting shaft (13) to be supported. In the interlock brake device for small vehicles according to claim 3,
At least one of the first and second arms (14, 15) (15) is detachably connected to the connecting shaft (13), and an angle formed by the arms (14, 15). An interlocking brake device for small vehicles, characterized in that can be arbitrarily adjusted. In the interlock brake device for small vehicles according to claim 3 or 4,
An input side support portion (10) that supports the outer casing (3b) of the input cable of the front wheel brake operation system (F), and an output that supports the outer casing (3c) of the output cable of the front wheel brake operation system (F). The side brake part (11) is provided in the same support member (7), The interlocking brake device for small vehicles characterized by the above-mentioned. In the interlock brake device for small vehicles according to claim 5,
The support member (7) is provided with a projecting portion (12) projecting laterally from a straight line connecting the input side support portion (10) and the output side support portion (11), and the projecting portion (12 ), Wherein the connecting shaft (13) is rotatably supported. In the interlock brake device for small vehicles according to claim 5,
At least one of the first and second arms (14, 15) (14) is connected to the support member (7) by an elastic body (18) of the front wheel brake operation system (F). An interlocking brake device for a small vehicle, which is biased in a non-operating direction. In the interlock brake device for small vehicles according to claim 5,
The support member (7) is formed as a case, and one (14) of the first and second arms (14, 15) is disposed in the case (7) and the arms (14, 15). ) Is arranged on the outside of the case (7), and the interlocking brake device for small vehicles.

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