JPS623034B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pedal mounting structure for a motorcycle that allows the mounting positions of a footrest and pedals to be changed to a position desired by the driver.

In a motorcycle, it is desirable to be able to change the mounting position of the footrest and pedals according to the physique and preferences of the driver. In conventional motorcycles, the footrest and pedals were provided independently, so when moving the footrest, it was necessary to replace it with a different pedal or use other parts. Furthermore, when replacing the pedal, it is necessary to adjust the length of the pedal force transmission member that transmits the pedal force, making the work even more troublesome. Furthermore, if pedal force transmitting members of different lengths are required due to a change in the mounting position, members of different lengths must be prepared in advance, which increases the time and effort of arranging and storing parts. Furthermore, depending on the mounting location, the relative position of the footrest and the pedals may change, resulting in a slight change in the operating feel.

This invention was made in view of the above circumstances, and it is possible to easily change the mounting positions of the footrest and the pedals without changing their relative positions.
The present invention provides a pedal mounting structure for a motorcycle that does not require replacement of parts and has extremely good workability. In order to achieve this purpose, this invention
A pedal is rotatably attached to a footrest support member whose mounting position is variable, and the point of action of the pedal is the same radius trajectory centered on the fulcrum of the pedal force transmission member connected to the point of action before and after changing the mounting position of the footrest mounting member. It is configured so that it is located almost at the top.

The present invention will be explained in detail below based on the drawings.

FIG. 1 is a side view showing an embodiment in which the present invention is applied to a brake pedal, and FIG. 2 is a partially sectional exploded view. In these figures, reference numeral 1 indicates a frame, and 2 indicates a muffler bracket fixed to this frame 1. This muffler bracket 2 is used to mount a muffler (not shown), and is fixed to the frame 1 with bolts 3 (see FIG. 1) and mounting bosses 4. Note that bolts 5 near the front end of this muffler bracket 2 are used to attach the muffler.

Reference numeral 6 denotes a footrest, and a footrest support member 7 that supports the footrest 6 in an upwardly foldable manner is fastened together with the muffler bracket 2 to the frame 1 by the mounting boss 4. That is, the mounting boss 4 is integrally formed with a male threaded part 4a that is screwed into the frame 1, a boss part 4b that supports the brake pedal 8 (described later), and a nut part 4c located between these parts, and the muffler bracket 2 and The footrest support member 7 has a male threaded portion 4a.
It is fixed to the frame 1 by passing through the nut portion 4c and tightening the nut portion 4c.

8 is a brake pedal, and its cylindrical portion 8a is connected to the boss portion 4b of the mounting boss 4 via a bush 9.
It is rotatably mounted on the This boss portion 4b
A bolt 11 screwed into the end face of the
This prevents the pedal 8 from coming off. The ball side of the ball joint 12 is press-fitted and fixed to the point of application A near the rear end of the brake pedal 8.

On the other hand, a brake shaft 13 is rotatably held in the frame 1 so as to straddle above the muffler bracket 2, and a brake lever 14 and a brake arm 15 are fixed to the left and right protruding ends of the brake shaft 13, respectively. The brake arm 15 is located on the outside of the vehicle body and is connected to the brake shaft 13 by a serration, so that the mounting angle of the brake arm 15 can be adjusted by operating a bolt 16. Further, a master cylinder 17 is fixed to the frame 1 at a position above this brake shaft 13, and a piston 1 in this master cylinder 17
A push rod 19 that presses the brake lever 8 is connected to the rotating end of the brake lever 14 via a joint 20.

A brake rod 21 has both ends screwed into joints 22 connected to the socket side of the ball joint 12 and the brake arm 15, respectively. Both ends of the brake rod 21 are threaded in opposite directions, and the length thereof can be adjusted by rotating a nut portion 21a that is integral with the brake rod 21. Further, 23 and 24 are lock nuts for stopping the rotation of this brake rod 21. This brake rod 21 is connected to the point of application A via a ball joint 12, and serves as a pedal force transmitting member that transmits the pedal force of the pedal 8 to the brake arm 15.
Also, the brake arm 1 of this brake rod 21
5 serves as a fulcrum B when changing the mounting position of the pedal 8.

If the pedal 8, which is located at the solid line position in FIG.
5. Brake shaft 13, brake lever 14
Push rod 1 of master cylinder 17 via
9 upward to generate braking oil pressure in the master cylinder 17.

The muffler bracket 2 is formed with a moving mounting hole (not shown) for mounting the footrest 6 and pedal 8 integrally to the position indicated by the chain line in FIG. In other words, when moving to this mounting hole, the relative positions of the footrest 6 and the pedal 8 move in parallel without changing, and the distance between the point of action A' and the fulcrum B after movement is the same as the point of action before movement. It is equal to the distance between A and fulcrum B. In other words, the mounting holes are formed so that the points of action A and A' are located on the same radial locus L centering on the fulcrum B.

When moving the footrest 6 and pedal 8, remove the mounting boss 4 shown in FIGS. 1 and 2 from the frame 1, and insert this boss 4 into the moving mounting hole.
, and screw the nut into the protruding end on the muffler bracket 2 side. Further, the muffler bracket 2 may be fixed to the frame 1 by screwing ordinary bolts into the mounting holes before movement.

Next, an embodiment in which the present invention is applied to a shift pedal will be described based on FIGS. 3 and 4. FIG. 3 is a side view thereof, and FIG. 4 is a partially sectional exploded view thereof. In these figures, 101 is a frame, 10
2 is a muffler bracket, 104 is a mounting boss,
106 is a footrest, 107 is a footrest support member, and the external threaded portion 104a of the boss 104 and the nut portion 104 are similar to the embodiments shown in FIGS.
c fixes the muffler bracket 102 and footrest support member 107 to the frame 102. 108 is a shift pedal, the cylindrical part 108a at the rear end is attached to the boss part 104b of the boss 104 via a bush (not shown), and the washer 1
10 and a bolt 111 prevent the pedal 108 from coming off.

A ball joint 112 is located at the point of action A located forward of the cylindrical portion 108a of the shift pedal 108.
The ball side is press-fitted and fixed.

151 is a shift shaft, and a shift arm 1 is attached to the end projecting from the crankcase 152.
53 are connected by serrations. 15
4 is an idle shaft held in the crankcase 152, and a shift lever 155 is rotatably held here. This shift lever 15
5 has two arm parts 155a and 155b, the arm part 155a extends above the point of application A, and the arm part 1
55b extends toward the shift arm 153 side. This arm portion 155b has a long hole 1 that is long in the radial direction.
55c is formed, and a roller pin 156 provided on the shift arm 153 is engaged in this elongated hole 155c. Further, the ball side of a ball joint 157 is press-fitted and fixed to the arm portion 155a.

A shift rod 160 connects the socket side of this ball joint 157 and the socket side of the ball joint 112. That is, screws cut in opposite directions at both ends of the shift rod 160 are screwed into the sockets of the joints 112, 157, and by rotating the nut portion 160a that is integrated with the rod 160, the distance between the joints 112, 157 is adjusted. changes. 161,
162 is a lock nut.

This shift rod 160 is the shift pedal 108.
This serves as a pedal force transmission member that transmits the pedal force to the shift lever 155. The center of rotation of the ball joint 157, which is the connecting portion between the shift rod 160 and the shift lever 155, serves as a fulcrum B when changing the mounting position of the pedal 108.

If you now turn the shift pedal 108 either up or down, the shift rod 160 and shift lever 1
55, the shift shaft 151 is rotated via the shift arm 153, and the meshing of the transmission gears is changed in a transmission (not shown).

The muffler bracket 102 is provided with a mounting hole (not shown) for movement, similar to the embodiment shown in FIGS.
6. The shift pedal 108 is in the position shown by the chain line in FIG. That is, the footrest 106 and the shift pedal 108 move in parallel without changing their relative positions, and the points of action A and A' before and after the movement are on the same radial locus L with the fulcrum B as the center.

In the two embodiments described above, the pedals 8, 108 are attached to the bosses 4, 108, which are the supporting shafts.
Since the footrest support members 7, 107 are fixed to the muffler brackets 2, 102 by utilizing the above, the number of parts is reduced. Also bolts 11, 111
Workability is good because the mounting bosses 4, 104 can be attached and detached by turning the nut portions 4c, 104c without removing them. Furthermore, in one mounting position, the muffler bracket 2, 102 is also fixed to the frame 1, 101 at the same time by the mounting boss 4, 104, so that the number of parts is further reduced.

In the above embodiment, the footrests 6, 106 and the pedals 8, 108 are attached at two locations, front and rear, but it goes without saying that they may be attached at three or more locations.

Note that this invention can also be applied to the case where the pedal force is transmitted by a wire, in which case the wire becomes the pedal force transmitting member, and the end of the outer tube through which this wire passes serves as the fulcrum of the pedal force transmitting member. Become.

As described above, the present invention includes a pedal rotatably mounted on a footrest support member whose mounting position is variable, and a point of action of the pedal having the same radial trajectory around the fulcrum of the pedal force transmission member before and after changing the mounting position of the footrest mounting member. Since the footrest and pedals are configured so that they are located almost at the top, the ergonomically determined relative positions of the footrest and pedals do not change, and the two can always be set at the optimal relative position. In addition, since the footrest and pedal are moved in parallel, there is no need to replace the pedal, and the distance between the point of action and the fulcrum remains almost the same before and after movement, so it is possible to use brake rods, shift rods, wires, and other pedal force transmission members. There is no need to replace it. Therefore, it can be easily moved to the driver's desired position without using any special parts.

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of the present invention, Fig. 2 is a partially sectional exploded view, Fig. 3 is a side view of another embodiment, and Fig. 4 is a partially sectional exploded view. It is a diagram. 6,106...footrest, 7,107...
Footrest support member, 8...brake pedal,
21... Brake rod, 108... Shift pedal, 160... Shift rod, A, A'... Point of application, B... Fulcrum, L... Locus.

Claims (1)

[Claims] 1. A footrest support member whose mounting position is variable;
A pedal is rotatably attached to the footrest support member, and the point of action of the pedal is the same around the fulcrum of the pedal force transmission member connected to the point of action before and after changing the mounting position of the footrest mounting member. A motorcycle pedal mounting structure characterized by being positioned substantially on a radial locus.