JP5981476B2 - Brake pedal support structure for saddle-ride type vehicles - Google Patents

Description

  The present invention relates to an improvement in a brake pedal support structure for a saddle-ride type vehicle.

  2. Description of the Related Art A brake pedal for a saddle-ride type vehicle that applies braking force to a wheel by a driver's stepping force is known (see, for example, Patent Document 1 (FIG. 2)).

  As shown in FIG. 2 of Patent Document 1, a main pipe (10) (the numbers in parentheses indicate the symbols described in Patent Document 1. The same applies hereinafter) extends in the longitudinal direction of the saddle-ride type vehicle. The side pipe (11) extends in the longitudinal direction of the vehicle at the vehicle lateral position (10).

  The rear brake pedal (21) is attached to the main pipe (10) and extends outwardly in the vehicle width direction, and a cylindrical boss (inserted rotatably on the support shaft (23)). 21b), an arm (21a) extending forward from the vehicle from the boss (21b), and a stepping portion (22) attached to the tip of the arm (21a).

  If the support shaft (23) is fixed to the main pipe (10) as in the technique of Patent Document 1, the support shaft (23) and / or the boss by the continuous rotation of the boss (21b) with respect to the support shaft (23). It is known that the occurrence of wear and abnormal noise of (21b) can be avoided.

  By the way, when the rear brake pedal (21) is attached / detached, the boss (21b) is moved in the vehicle width direction and is inserted / removed from / from the support shaft (23). In this case, the side pipe (11) is arranged on the outer side in the vehicle width direction of the support shaft (23), and the boss (21b) can be inserted and removed. A space corresponding to at least the axial length of the boss (21b) is required between the side pipes (11). Since it is necessary to secure such a space, there is a restriction on component arrangement.

  As a countermeasure, there is a means for forming a screw on the support shaft and fastening the support shaft directly and detachably to the main pipe, but it is difficult to reduce the screw diameter in order to secure a predetermined fastening strength. If it does so, the components around a spindle may become large and arrangement space may increase.

  There is a demand for a brake pedal support structure for a saddle-ride type vehicle that can increase the degree of freedom of component placement and avoid the occurrence of wear and noise.

Japanese Patent No. 3850909

  It is an object of the present invention to provide a brake pedal support structure for a saddle-ride type vehicle that can increase the degree of freedom of component arrangement and can avoid the occurrence of wear and noise.

The invention according to claim 1 is a brake pedal that rotates around a cylindrical pivot portion when the driver steps on the tread surface and transmits the driver's input to the brake, and a support shaft that supports the brake pedal. Pivot shafts and pedal brackets that support both ends of the pivot shafts. In the brake pedal support structure of a saddle-ride type vehicle in which the pivot shafts are removably attached to the pedal brackets, the pivot shafts are prevented from idling. detent portion comprises al is that, detent portion that includes a flange portion extending radially of the pivot shaft integrally provided, and a small screw for fastening the flange portion to the pedal bracket pivot shaft It is characterized by.

In the invention according to claim 2 , a pillion step bracket on which a passenger puts his / her foot is attached to the body frame, a pedal bracket is attached to the pillion step bracket, and the first bracket and the second bracket are attached to the pedal bracket. Both ends of the pivot shaft are supported by the first bracket and the second bracket, and both the first bracket and the second bracket are joined to one part called a pillion step bracket and then attached to the vehicle body frame. It is characterized by that.

The invention according to claim 3 is characterized in that the pillion step bracket is further provided with a cylinder mounting bracket for mounting a master cylinder for a hydraulic brake.

The invention according to claim 4 is characterized in that any one of the first bracket and the second bracket and the cylinder mounting bracket are integrally formed.

  In the invention according to claim 1, the brake pedal is provided with a rotation preventing portion that prevents the pivot shaft from slipping. Since the pivot shaft becomes non-rotatable, it is possible to avoid the pivot shaft continuous phenomenon due to the rotation of the brake pedal. Since the continuous rotation phenomenon is eliminated, there is no concern that the pivot shaft and / or the pedal bracket may be worn or unusual due to the continuous rotation. In addition, if only the anti-rotation portion is provided, there is no restriction on the arrangement of parts around the brake pedal, and the arrangement space can be kept small. Furthermore, it is easy to remove the brake pedal.

Moreover, in this invention, the rotation prevention part is provided with the flange part and the machine screw. When installing the brake pedal, the flange was applied to the pedal bracket, and the pivot shaft was fastened to the pedal bracket with a small screw. Since the rotation preventing portion is constituted by the flange portion and the small screw, the brake pedal can be easily disassembled.

In the invention according to claim 2 , both the first bracket and the second bracket that support both ends of the pivot shaft are coupled to one part called a pillion step bracket and then attached to the vehicle body frame. That is, compared with the case where the pivot shaft is directly attached to the vehicle body frame, it is possible to easily ensure the positional accuracy necessary for mounting the pivot shaft.

  If the brake pedal is sub-assembled to the pillion step bracket on the subline and then the pillion step bracket with the brake pedal is attached to the body frame on the main line, the load on the main line can be kept low. . As a result, the degree of freedom of line organization can be increased.

In the invention which concerns on Claim 3 , the pedal bracket and the cylinder mounting bracket are provided in the pillion step bracket. In other words, since the pedal bracket and cylinder mounting bracket are provided in the same pillion step bracket, the mounting position accuracy between the brake pedal and the master cylinder is improved compared to the case where the pedal bracket and the cylinder mounting bracket are made of different members. Can do.

In the invention according to claim 4 , one of the first bracket and the second bracket and the cylinder mounting bracket are integrally formed. As a result of being integrally formed, the mounting position accuracy between the brake pedal and the master cylinder is improved compared to the case where the first bracket supporting the pivot shaft, the second bracket, and the cylinder mounting bracket supporting the master cylinder are not integrally formed. Can be increased.

1 is a right side view of a motorcycle according to the present invention. It is a principal part enlarged view of FIG. 1 explaining a brake pedal and its peripheral part. It is a side view of the brake pedal attached to a pedal bracket. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a sectional view taken along line 5-5 of FIG. It is a disassembled perspective view explaining a brake pedal support structure. It is operation | movement explanatory drawing which concerns on removal of a brake pedal. It is operation | movement explanatory drawing of the brake pedal support structure which concerns on an Example and a comparative example.

  Hereinafter, embodiments of the present invention will be described in detail. In the drawings and examples, “up”, “down”, “front”, “rear”, “left”, and “right” respectively indicate directions viewed from the driver who rides the motorcycle.

Embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the motorcycle 10 includes a vehicle body frame 11, a front wheel steering unit 15 having a front wheel 13 provided to be steerable at the front portion of the vehicle body frame 11, and a vehicle body frame 11 behind the front wheel 13. A suspended engine 17, a rear wheel suspension portion 16 having a rear wheel 14 provided swingably on the vehicle body frame 11 behind the engine 17, and a fuel tank 19 provided on the vehicle body frame 11 above the engine 17 This is a saddle-ride type vehicle having a seat 21 that is placed on the vehicle body frame 11 behind the fuel tank 19 and on which an occupant sits.

  The vehicle body frame 11 includes a head pipe 23 that supports the front wheel steering unit 15 so as to be steerable, a down frame 24 that extends downward from the head pipe 23 and suspends the engine 17, and extends from the head pipe 23 toward the rear of the vehicle. A main frame 25, a seat rail 26 that extends rearward from the rear end of the main frame 25 and supports the seat 21, and a pivot frame that extends downward from the main frame 25 and supports the engine 17 and the rear wheel suspension portion 16. 27 is the main element.

  The engine 17 includes a crankcase 31, a cylinder portion 32 attached to the upper surface of the crankcase 31, an intake system 33 connected to the rear wall of the cylinder portion 32, and an exhaust extending from the front wall of the cylinder portion 32. It consists of a system 34. The exhaust system 34 includes an exhaust pipe 35 and a silencer 36 connected to the tip of the exhaust pipe 35 and extending rearward of the vehicle.

  The front wheel steering unit 15 includes a steering shaft 41 inserted into the head pipe 23, a handle 42 attached to the upper end of the steering shaft 41 and steered by the driver, and is attached to the steering shaft 41 integrally and obliquely forward and downward. The extending front fork 43 and the front wheel 13 attached to the lower end of the front fork 43 are the main elements. The rear wheel suspension 16 has a rear cushion 44.

Next, the vehicle body cover will be described.
The vehicle body cover 50 is attached to the front wheel steering section 15 and covers a front cowl 51 that covers the front upper part of the vehicle, a side cover 52 that covers the side of the pivot frame 27 behind the engine 17, and a seat rail that is behind the side cover 52. A rear cowl 53 that covers the side of 26 is a main element. A front fender 54 is attached to the front fork 43 to shield mud splashes from the front wheel 13, and a rear fender 55 is attached to the seat rail 26 to shield mud splashes from the rear wheel 14.

  A grab rail 56 that can be gripped by the passenger is attached to the seat rail 26. A stand 57 is attached to the pivot frame 27.

  As shown in FIG. 2, a support frame 28 is passed between the pivot frame 27 and the seat rail 26 (see FIG. 1) so as to extend from the lower front to the upper rear. The support frame 28 is a component of the vehicle body frame 11. A pillion step bracket 62 is attached to the support frame 28 and the pivot frame 27 to support a pillion step 61 on which a passenger puts his / her foot. A pedal bracket 63 is attached to the pillion step bracket 62 and a silencer 36 is attached. The driver step 64 on which the driver can place his / her foot is attached to the crankcase 31 of the engine 17.

3-6 next, the pillion step bracket and the brake pedal support structure provided in this pillion step bracket are demonstrated.
As shown in FIG. 3, the pillion step bracket 62 includes a pedal bracket 63 including a first bracket 67 and a second bracket 68 that rotatably supports the brake pedal 66, and a pivot shaft 69 that is supported by the pedal bracket 63. The U-shaped plate 71 is connected to the first bracket 67 of the pedal bracket 63 and extends from the first bracket 67 to the front side of the figure, and one end is connected to the outer surface 71a of the U-shaped plate 71 and extends to the front side of the figure. A pipe member 72 that extends rearward of the vehicle and then bends forward and obliquely upward of the vehicle and has an upper end coupled to the support frame 28 (see FIG. 2), and a plate-like joint that extends rearward from the bent portion 72b of the pipe member 72 The bracket 73 is a main element.

  A silencer fixing collar 74 and a pillion step stay 75 are joined to the joint bracket 73. A silencer 36 (see FIG. 2) is attached to the silencer fixing collar 74, and a pillion step 61 (see FIG. 2) is attached to the pillion step stay 75. At the position of the joint bracket 73, a delay spring stay 77 that stops one of the delay springs 76 that delays the movement of a brake pedal 66, which will be described later, projects from the pipe member 72 in front of the vehicle.

  The brake pedal 66 is inserted into the pivot shaft 69 and is pivotally supported by the pivot shaft 69 (a collar member 81), a brake pipe 82 extending from the collar member 81, and a front end of the brake pipe 82 , A tread surface (tread plate 83) to which a brake treading force is applied, an arm member 85 extending from the collar member 81 and transmitting the brake force to the brake master cylinder 84, and a plate-like flange portion joined to the pivot shaft 69 The main element is 86 and a small screw 87 that fixes the flange portion 86 and the first bracket 67 in a non-rotatable manner.

  An attachment piece 88 to which the rod end 84a of the brake master cylinder 84 is attached is provided at the end of the arm member 85, and the other end 76b of the delay spring 76 described above is fixed to the attachment piece 88.

  A brake pedal 66, a brake master cylinder 84, and a delay spring 76 are attached to the pillion step bracket 62, respectively. For example, while the brake pedal 66 is attached to the pillion step bracket 62, the mounting accuracy of the brake mechanism can be improved as compared with the case where the brake master cylinder 84 is attached to other parts other than the pillion step bracket.

  As shown in FIG. 4, the pedal bracket 63 includes a first bracket 67 and a second bracket 68, and both ends of the pivot shaft 69 are supported by the first bracket 67 and the second bracket 68. A flange portion 91 is formed at one end of the pivot shaft 69, and a flange hole 86 h of a flange portion 86 having a plate shape is fitted so as to contact the flange portion 91, and the flange portion 86 is welded to the flange portion 91 in advance. . A pivot shaft 69 in which the flange portion 86 is integrated is attached to the pedal bracket 63.

  The first bracket 67 is provided with a bolt hole 95 through which the machine screw 87 passes. A nut 96 is welded to the inner surface 67 i of the first bracket 67 in accordance with the position of the bolt hole 95. The flange portion 86 is provided with a through hole 111, and the small screw 87 is passed through the through hole 111 and the bolt hole 95 in this order and fastened to the nut 96, whereby a flange in which the pivot shaft 69 is integrated with the first bracket 67. Part 86 is attached. A small hole 98 is provided at the other end of the pivot shaft 69 into which a split pin 97 for preventing removal can be inserted.

  A plate-like second bracket 68 is joined to the plate-like first bracket 67 from the inside in the vehicle width direction. The first bracket 67 has a first hole 93, and the second bracket 68 has a second hole 94. The first bracket 67 and the second bracket 68 are separated between the first hole 93 and the second hole 94. The collar member 81 of the brake pedal 66 is set between the first bracket 67 and the second bracket 68 that are separated from each other, and then passes through the first hole 93, the hole 99 of the collar member 81, and the second hole 94. Thus, the pivot shaft 69 is inserted in this order, and the split pin 97 is inserted into the small hole 98 provided at the other end of the pivot shaft 69.

  That is, the pedal bracket 63 supports both ends of the pivot shaft 69, the pivot shaft 69 is attached to the pedal bracket 63 so that it can be inserted and removed, and the brake pedal 66 is attached to the pivot shaft 69 so as to be rotatable. As described above, the flange portion 91 provided at one end of the pivot shaft 69 is integrally welded to the flange portion 86, and the flange portion 86 is fixed to the first bracket 67 by the machine screw 87. The pivot shaft 69 does not rotate as the collar member 81 rotates. That is, the brake pedal 66 is provided with a rotation preventing portion 100 that prevents the pivot shaft 69 from slipping.

  The anti-rotation portion 100 includes a plate-like flange portion 86 that is provided integrally with the pivot shaft 69 and extends in the radial direction of the pivot shaft 69, and a small screw 87 that fastens the flange portion 86 to the pedal bracket 63. Yes.

  As shown in FIG. 5, both ends of the pivot shaft 69 are supported by the first bracket 67 and the second bracket 68 provided in the pedal bracket 63. An arm member 85 extends upward from one end of the collar member 81 in the vehicle width direction, and an arm-shaped brake pipe 82 extends downward from the other end of the collar member 81 in the vehicle width direction.

  As shown in FIG. 6, the front part of the pillion step bracket 62 in which the pedal bracket 63 is integrated can be fastened to the pivot frame 27 (see FIG. 2) side by a fastening screw 101a, and the rear part of the pillion step bracket 62 is The support frame 28 can be fastened by the fastening screw 101b.

  Referring also to FIG. 4, the second bracket 68 is coupled to the first bracket 67. That is, both the first bracket 67 and the second bracket 68 are coupled to one part called a pedal bracket 63, and the pedal bracket 63 is attached to the vehicle body frame 11 via the pillion step bracket 62.

  Returning to FIG. 6, the pillion step bracket 62 including the pedal bracket 63 is provided with a cylinder mounting bracket 103 for mounting a master cylinder 84 for a hydraulic brake. The cylinder mounting bracket 103 is formed integrally with the first bracket 67. In this embodiment, the cylinder mounting bracket is integrally formed with the first bracket, but the cylinder mounting bracket may be integrally formed with the second bracket.

  Next, a procedure for removing the brake pedal will be described. FIG. 7A illustrates that the split pin is removed from the pivot shaft and the machine screw is loosened. FIG. 7B illustrates that the fastening member is removed from the pivot shaft. ) Explains the removal of the pivot shaft from the first bracket and the second bracket.

  7 (a) and 7 (b), the split pin 97 is extended as shown by the arrow (1) and then pulled out from the small hole 98, and the machine screw 87 is loosened and removed from the nut 96 as shown by the arrow (2).

  In FIG. 7C, the pivot shaft 69 from which the split pin 97 and the small screw 87 are removed is pulled out of the vehicle as indicated by the arrow (3), so that the collar which is a component of the brake pedal 66 is used as a pivotal fulcrum. The member 81 can be removed. In addition, when attaching a brake pedal to a pedal bracket, the procedure reverse to the above description may be performed, and the description is omitted.

The operation of the brake pedal support structure described above will be described next.
Returning to FIG. 4, the brake pedal 66 is provided with a rotation preventing portion 100 that prevents the pivot shaft 69 that rotatably supports the brake pedal 66 from slipping. In other words, the brake pedal 66 is provided with a rotation preventing portion 100 that prevents the pivot shaft 69 from being accompanied by the rotation of the brake pedal 66.

  Since the pivot shaft 69 cannot rotate with respect to the brake pedal 66, the continuous rotation phenomenon of the pivot shaft 69 due to the rotation of the brake pedal 66 can be avoided. Since the continuous rotation phenomenon is eliminated, there is no concern that the pivot shaft 69 and / or the pedal bracket 63 may be worn or unusual due to the continuous rotation.

Next, it will be described that the brake pedal support structure according to the present invention makes it difficult for the arrangement of parts around the brake pedal to be restricted, and the arrangement space can be kept small.
In the comparative example of FIG. 8B, the main pipe 108 extends in the longitudinal direction of the vehicle at the center position in the vehicle width direction, and the support shaft 106 is attached to the main pipe 108 via brackets 109 and 109. The support shaft 106 extends outward in the vehicle width direction. A side pipe 107 extends in the longitudinal direction of the vehicle at a vehicle lateral position of the main pipe 108.

  With the above configuration, when the rear brake pedal 66B is attached / detached, the boss (collar member 81B) is moved outward in the vehicle width direction in the direction of the arrow b, and is removed from the support shaft 106. In this case, the side pipe 107 is disposed outside the support shaft 106 in the vehicle width direction, and the rear brake pedal 66B can be attached and detached in order to allow the rear brake pedal 66B to be attached and detached. A space for at least the axial length of the collar member 81B is required between them. Since it is necessary to secure such a space, there are cases where restrictions are placed on the component arrangement.

  In this regard, in the present invention, as shown in the embodiment of FIG. 8A, it is sufficient that the pivot shaft 69 can be inserted and removed, and the space that can move outward in the vehicle width direction to the brake pipe 82 that is a component of the rear brake pedal 66. There is no need to secure. With such a configuration, there is no restriction on the component arrangement, and the arrangement space can be kept small. Furthermore, it is easy to remove the brake pedal. As a result, the continuous rotation of the pivot shaft 69 does not occur, the degree of freedom of component arrangement can be increased, and the arrangement space can be kept small.

  Returning to FIG. 6, the detent portion 100 includes a flange portion 86 and a machine screw 87. When the brake pedal 66 is attached to the pivot shaft 69, the flange portion 86 is applied to the first bracket 67 of the pedal bracket 63, and the pivot shaft 69 is fastened to the pedal bracket 63 with the machine screw 87. The rotation prevention part 100 was comprised by the flange part 86 and the machine screw 87. FIG. With this configuration, the pivot shaft 69 can be removed from the pedal bracket 63 by removing the machine screw 87, so that the brake pedal 66 can be easily disassembled.

  The first bracket 67 and the second bracket 68 that support both ends of the pivot shaft 69 are attached to the vehicle body frame 11 after being coupled to a single part called a pedal bracket 63. That is, as compared with the case where the pivot shaft 69 is directly attached to the vehicle body frame 11, it is possible to easily ensure the positional accuracy necessary for mounting the pivot shaft 69.

  If the pillion step bracket 62 with a brake pedal is attached to the vehicle body frame 11 on the main line after the brake pedal 66 is sub-assembled to the pillion step bracket 62, the load on the main line can be kept low. it can. As a result, it is possible to facilitate line balance on the main line.

  Further, the pillion step bracket 62 is provided with a pedal bracket 63 and a cylinder mounting bracket 103 for mounting a master cylinder 84 for a hydraulic brake. That is, since the pedal bracket 63 and the cylinder mounting bracket 103 are arranged in the same pillion step bracket 62, the brake pedal 66 and the master cylinder 84 are compared with the case where the pedal bracket and the cylinder mounting bracket are arranged in different members. Mounting position accuracy can be increased.

Furthermore, the first bracket 67 and the cylinder mounting bracket 103 are integrally formed. By being integrally formed, the bracket for supporting the pivot shaft 69 and the cylinder mounting bracket for supporting the cylinder are separate members, and compared with the case where they are not integrally formed, the mounting position of the brake pedal 66 and the master cylinder 84 Accuracy can be increased.
In this embodiment, the cylinder mounting bracket is integrally formed with the first bracket, but the cylinder mounting bracket may be integrally formed with the second bracket.

  Although the present invention is applied to a motorcycle in the embodiment, it can also be applied to a saddle-ride type tricycle and can be applied to a general saddle-ride type vehicle.

  The present invention is suitable for a motorcycle equipped with a brake pedal.

  DESCRIPTION OF SYMBOLS 10 ... saddle-ride type vehicle (motorcycle), 11 ... body frame, 61 ... pillion step bracket, 62 ... pillion step bracket, 63 ... pedal bracket, 66 ... brake pedal, 67 ... first bracket, 68 ... second bracket, 69 ... Pivot shaft, 81 ... Pivot part (collar member), 83 ... Tread surface (tread plate), 84 ... (Brake master cylinder) Master cylinder, 86 ... Flange part, 87 ... Small screw, 100 ... Non-rotating part, 103 ... Cylinder mounting bracket.

Claims (4)

When the driver steps on the tread surface (83), the driver pivots around the cylindrical pivot portion (81) to transmit the driver's input to the brake, and supports the brake pedal (66). And a pedal bracket (63) that supports both ends of the pivot shaft (69), and the pivot shaft (69) is detachably attached to the pedal bracket (63). In the straddle-type vehicle brake pedal support structure,
The detent portion for preventing the racing of the pivot shaft (69) (100) is provided with al will,
The anti-rotation portion (100) is provided integrally with the pivot shaft (69). The flange portion (86) extends in the radial direction of the pivot shaft (69), and the flange portion (86) is connected to the pedal bracket. A small screw (87) for fastening to (63),
A brake pedal support structure for a saddle-ride type vehicle. A pillion step bracket (62) for supporting a pillion step (61) on which the passenger puts his / her foot is attached to the vehicle body frame (11),
The pedal bracket (63) is attached to the pillion step bracket (62),
The pedal bracket (63) includes a first bracket (67) and a second bracket (68).
Both ends of the pivot shaft (69) are supported by the first bracket (67) and the second bracket (68),
The first bracket (67) and the second bracket (68) are both attached to the vehicle body frame (11) after being coupled to one part called the pillion step bracket (62). The brake pedal support structure for a saddle-ride type vehicle according to claim 1 . The brake pedal for a saddle-ride type vehicle according to claim 2, wherein the pillion step bracket (62) further includes a cylinder mounting bracket (103) for mounting a master cylinder (84) for a hydraulic brake. Support structure. The saddle riding according to claim 3, wherein one of the first bracket (67) and the second bracket (68) and the cylinder mounting bracket (103) are integrally formed. Brake pedal support structure for type vehicles.

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