JP2815627B2 - Operation detection mechanism of motorcycle braking system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a braking device for a motorcycle or the like, for example.
The present invention relates to a mechanism for detecting that the device is in an operating state, and more particularly to an improvement in a switch structure which can ensure its versatility and simplify the structure and adjustment work.

[Conventional technology]

For example, a braking device for a rear wheel of a motorcycle detects a depression operation of a brake pedal by a brake switch,
Thus, an operation detection mechanism for turning on the brake light is provided. An example of such a brake operation detecting mechanism is disclosed in Japanese Patent Application Laid-Open No. 61-160382.
This has a structure in which a brake switch that is turned on and off by the appearance of a switch operator is mounted near a brake pedal, and an operating member that rotates in conjunction with the brake pedal and an operator of the brake switch are connected by a spring. . Here, the connection is made via a spring for the following reason. That is, since the above-mentioned conventional operation detection mechanism is of a type in which the operation member of the brake switch is pulled out by an operation member that is interlocked with the brake pedal when the brake pedal is depressed, the operation is dependent on the depression amount of the brake pedal (the rotation amount of the operation member). There is a concern that the child may be damaged, to prevent this.

[Problems to be solved by the invention]

In the above-mentioned conventional structure, when the return position of the brake pedal is adjusted, the positional relationship between the brake switch and the operating member changes. Therefore, it is necessary to adjust the position of the brake switch to correct this, and it takes time to perform the adjustment work. There is a problem.

Further, various components such as a position adjusting mechanism for returning the pedal, a return spring, and a footrest are arranged in the vicinity of the brake pedal, and there is a problem that it is difficult to secure a layout space for the brake switch and to lay out the brake switch. .

Further, since the shape, structure, arrangement position, and the like of the brake pedal, the footrest, and the like differ for each model, it is necessary to determine the mounting position of the brake switch for each model in accordance with the model. Therefore, the positional relationship between the brake pedal and the brake switch differs for each model, and the difference in the positional relationship between the two corresponds by changing the length of the spring. Therefore, a spring corresponding to each model is required, and as a result, there is a problem that the above-mentioned conventional operation detection mechanism has low versatility.

The present invention has been made in view of the above conventional problems,
High versatility, easy adjustment work,
It is another object of the present invention to provide an operation detection mechanism for a vehicle braking device that is advantageous in layout.

[Means for solving the problem]

The present invention provides a brake pedal rotatably and axially supported by being biased to a return position, an operating member that rotates in conjunction with the brake pedal, and a return of the brake pedal in contact with the operating member. A position adjusting mechanism for adjusting a time position, wherein the operation member is provided so as to protrude upward from a pivot end of the brake pedal; and An adjusting pipe is attached to a bracket provided on the vehicle body frame so as to be located on the rear side of the operating member so as to face the operating member and to be movable in the axial direction. The adjusting pipe is provided so as to be able to protrude and retract from the front end thereof and to be protruded from the front end thereof. When the brake pedal is in the return position, the operating member immerses the operating element, the adjustment pipe regulates the return position of the brake pedal, and when the brake pedal is in the depressed position. The operating element is made to protrude by itself, and the connector for connecting the wire harness connected to the switch terminal in the adjustment pipe and the wire harness on the vehicle body side is positioned in the cover arranged above the position adjusting mechanism. It is characterized by having made it.

[Action]

According to the operation detecting mechanism of the present invention, when the brake is not operated, the operating member pushes the operating element and comes into contact with the position adjusting mechanism, whereby the brake switch is turned off and the position of the brake pedal when returning is regulated. When the brake is operated, the operating member is separated from the operating element, and the operating element protrudes by itself, so that the brake switch is turned on.

As described above, in the present invention, the amount of depression of the brake pedal does not affect the operation of the brake switch. Therefore, the same brake switch can be used for all models, and the versatility of the brake switch can be improved accordingly.

Further, since the brake switch of the present invention is provided in the position adjusting mechanism, when the return position of the brake pedal is adjusted, the relative positional relationship between the operator of the brake switch and the operating member of the pedal is automatically adjusted. Therefore, it is only necessary to adjust the position of the pedal, and it is possible to avoid complicated adjustment work.

Since the operating member is provided so as to protrude further upward from the pivot end located at the upper end of the brake pedal, and the position adjusting mechanism with a built-in brake switch is provided so as to be located behind the upwardly protruding operating member. In addition, the brake switch and the position adjusting mechanism can be arranged as high as possible, so that muddy water and the like are less likely to be splashed, and malfunctions can be prevented.

A structure that incorporates the brake switch operator and switch terminal into the adjustment pipe that constitutes the position adjustment mechanism minimizes the space required to place the brake switch, and provides a layout in which separate parts are provided near the footrest. The above problem does not occur. In addition, since the switch terminals and the like are arranged in the adjusting pipe, malfunctions due to muddy water and the like can be more reliably prevented.

Since the connector for connecting the wire harness on the brake switch side and the wire harness on the vehicle body is located in the cover disposed above the position adjusting mechanism, rainwater or the like is less likely to be applied to the connector, thereby preventing electric leakage.

〔Example〕

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1 to 3 are diagrams for explaining an operation detecting mechanism of a rear wheel braking device for a motorcycle according to one embodiment of the present invention.

In the drawing, reference numeral 1 denotes a motorcycle employing the mechanism of the present embodiment, and a body frame 2 of the motorcycle 1 is of a so-called double cradle type, which has a pair of left and right main pipes 2b and a right pipe 2a on a head pipe 2a. The down tube 2c was connected, the seat rail 2e was extended rearward from the rear of the main pipe 2b, and the rear ends of the main pipe 2b and the down tube 2c were connected to the middle of the seat rail 2e by a back stay 2d. It has a structure. A front fork 4 that supports the front wheel 3 at the lower end thereof is pivotally supported to the left and right at the lower end of the head pipe 2a, and a rear arm that supports the rear wheel 5 at the rear end of the rear arm bracket of the back stay 2d. 6 is supported. An engine unit 7 is mounted in the cradle of the vehicle body frame 2, and a fuel tank 8 and a seat 9 are mounted on the upper part from the front.

A support bracket 2f for supporting each component is fixed by welding to the lower rear side of the back stay 2d. The bracket 2f supports a footrest main body 25a via a footrest bracket 25b. The brake pedal 12 of the braking device 10 is provided behind the footrest body 25a. The braking device 10 mainly includes the brake pedal 12, a master cylinder 14, and a caliper 19.

The brake pedal 12 is rotatably supported by a support shaft 11 implanted in the support bracket 2f, and is urged to a return position (non-operation position) by a return spring 12a. A drive arm 12b is fixed to a pivot end 12d of the brake pedal 12, and a connection fitting 13a screwed to a drive rod 13b of the master cylinder 14 is pin-connected to the drive arm 12b. .

The bracket portion 14a of the master cylinder 14 is bolted and fixed to the bracket 2h of the back stay 2d. A refueling joint 14b communicating with the pressure chamber of the master cylinder 14 is connected to a reserve tank 15 by a refueling hose 16, and the tank 15 is connected to the seat rail.
It is attached to 2e. One end of a brake hose 17 is connected to the discharge port of the master cylinder 14,
The hose 17 extends rearward along the rear arm 6, and an intermediate portion thereof is attached to the bracket 6 a of the rear arm 6 by a band 17.
Fixed at b. Also, the rear end 1 of the brake hose 17
7a is connected to the caliper 19 described above. Reference numeral 22 denotes a rear cushion pivotally supported by the bracket 6b, and reference numeral 18 denotes a rear footrest.

A brake switch 20 that constitutes the operation detection mechanism of the present embodiment is disposed near the pivot end 12d of the brake pedal 12, and the brake switch 20 is used to adjust the position of the brake pedal 12 when returning. It also performs the function of the mechanism. This brake switch 20 is connected to the adjustment pipe 20a
The bracket 2i formed integrally with the support bracket 2f
A pair of lock nuts 20b and 20g are fixed so as to be movable in the axial direction, and a pair of switch terminals (not shown) and an operator 20c for turning on and off the switch terminals are built in the adjustment pipe 20a. This operator 20c is used for the adjustment pipe 20a.
, The switch terminal is short-circuited at the time of the protrusion, whereby the brake switch 20 detects the operation of the brake and turns on. The switch terminal is connected to a brake lighting circuit by a wire harness 20d, a connector 20e, and a wire harness 20f.

An operating member 12c is provided so as to face the adjusting pipe 20a and the operating element 20c. The operating member 12c
Is formed integrally with the pivot end 12d of the brake pedal 12, and rotates with the rotation of the brake pedal 12. The brake pedal 12 has an operating member 12c which is an adjustment pipe 20a.
And the return position is regulated. Therefore, the position adjusting mechanism is constituted by the adjusting pipe 20a and the lock nuts 20b and 20g. 21 is the brake switch
It is a cover that covers the upper part of 20.

 Next, the operation and effect of this embodiment will be described.

When the driver depresses the brake pedal 12, the drive arm 12b moves the drive rod 13b upward with the rotation of the brake pedal 12, and the drive rod 13b
, Which generates hydraulic pressure. This hydraulic pressure acts on the caliper 19 via the brake hose 17, and the pad of the caliper 19 clamps the disk 5a of the rear wheel 5, so that the rear wheel 5 is braked.

Then, when the brake pedal 12 is depressed, the operating member 12c is rotated to the operating position indicated by a two-dot chain line in FIG.
As a result, the operator 20c protrudes from the adjustment pipe 20a, and as a result, the brake switch 20 is turned on and the brake lamp is turned on.

When the foot is released from the brake pedal 12, the brake pedal 12 is rotated to the original position by the return spring 12a, and the operating member 12c abuts on the adjustment pipe 20c and is held at the return position. When the operator 20c is pushed in, the switch 20
Turns off.

When adjusting the return position, for example, so that the foot portion of the pedal is lowered, loosen the lock nut 20b on the left side of the adjustment pipe 20a and tighten the lock nut 20g to remove the adjustment pipe 20a. Let go forward. In this case, of course, the operator 20c built in the adjustment pipe 20a also advances, so that the relative positional relationship between the operator 20c and the operating member 12c does not change from before adjustment.

As described above, according to the operation detection mechanism according to the present embodiment, the operation member 20c of the brake switch 20 is made to protrude and retract with the operation member 12c interlocked with the brake pedal 12, so that the operation of the brake can be detected. The mechanism of this embodiment is configured to be turned on when the operation element 20c protrudes on its own with the separation of the operation member 12c, so that the arrangement position of the brake pedal and the like does not affect the operation of the switch. Almost no, so it can be adopted regardless of the model and is highly versatile.

Further, in the position adjustment work at the time of return of the brake pedal 12, since the relative positional relationship between the operator 20c and the operating member 12c does not change by the adjustment, only the adjustment on the brake pedal side is sufficient, and the adjustment man-hour is reduced. Can be reduced.

An operation member 12c is provided so as to protrude further upward from a pivot end 12d located at the upper end of the brake pedal 12, and a position adjustment mechanism with a built-in brake switch so as to be located behind the operation member 12c protruding upward. Is provided, the brake switch and the position adjusting mechanism can be arranged as high as possible, so that muddy water and the like are less likely to be applied, and malfunctions can be prevented from occurring.

The structure in which the operator 20c and the switch terminal of the brake switch 20 are incorporated in the adjustment pipe 20a that constitutes the position adjustment mechanism is adopted, so that the arrangement space for the brake switch 20 is extremely small, and another component is provided near the footrest. There is no layout problem as described above. In addition, since the switch terminals and the like are disposed in the adjustment pipe 20a, malfunctions due to muddy water and the like can be more reliably prevented.

Since the connector 20e for connecting the wire harness 20d on the brake switch 20 side and the wire harness 20f on the vehicle body side is located in the cover 21 disposed above the position adjusting mechanism, it is difficult for rainwater or the like to splash on the connector 20e. , Can prevent electric leakage.

〔The invention's effect〕

As described above, according to the operation detection mechanism of the braking device according to the present invention, the position adjustment mechanism is provided with the brake switch that is turned on and off by the operation of the operation element, and the operation element is moved in and out by the operation member interlocked with the brake pedal. Therefore, it can be adopted regardless of the type of the device, and has the effect of improving versatility. In addition, there is no need to adjust the switch in accordance with the position adjustment of the brake pedal, and the adjustment work can be simplified.

Since the operating member is provided so as to protrude further upward from the pivot end located at the upper end of the brake pedal, and the position adjusting mechanism with a built-in brake switch is provided so as to be located behind the upwardly protruding operating member. In addition, the brake switch and the position adjusting mechanism can be arranged as high as possible, so that muddy water and the like are less likely to be splashed, and malfunctions can be prevented.

A structure that incorporates the brake switch operator and switch terminal into the adjustment pipe that constitutes the position adjustment mechanism minimizes the space required to place the brake switch, and provides a layout in which separate parts are provided near the footrest. The above problem does not occur. In addition, since the switch terminals and the like are arranged in the adjusting pipe, malfunctions due to muddy water and the like can be more reliably prevented.

Since the connector for connecting the wire harness on the brake switch side and the wire harness on the vehicle body is located in the cover arranged above the position adjusting mechanism, it is difficult for rainwater or the like to be applied to the connector, and the effect of preventing electric leakage can be obtained. There is.

[Brief description of the drawings]

1 to 3 are views for explaining an operation detecting mechanism of a motorcycle braking device according to an embodiment of the present invention. FIG. 1 is a side view of an operation detecting mechanism, and FIG. FIG. 3 is a right side view of a motorcycle employing the mechanism of the embodiment. In the figure, 12 is a brake pedal, 12c is an operating member, 20
Is a brake switch, 20a is an adjustment pipe (position adjustment mechanism), and 20c is an operator.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-135037 (JP, U) JP-A-59-30762 (JP, U) (58) Fields investigated (Int.Cl. ⁶ , DB name) B60T 7/02

Claims (1)

(57) [Claims] A brake pedal rotatably and axially supported by being biased to a return position, an operating member that rotates in conjunction with the brake pedal, and a brake pedal that contacts the operating member and is In an operation detection mechanism of a motorcycle braking device including a position adjustment mechanism for adjusting a position at the time of return, the operation member is provided so as to protrude upward from a pivot end of the brake pedal, and the position adjustment mechanism is provided. An adjusting pipe is attached to a bracket provided on the vehicle body frame so as to be located on the rear side of the operating member so as to face the operating member and to be movable in the axial direction. A switch terminal is provided in the adjustment pipe so as to be able to protrude and retract from the front end of the adjustment pipe, and to be turned on and off when the operation element projects and retracts, respectively. When the brake pedal is at the return position, the operating member immerses the operator and the adjustment pipe regulates the return position of the brake pedal, and when the brake pedal is at the depressed position. The operating element is made to protrude by itself, and the connector for connecting the wire harness connected to the switch terminal in the adjustment pipe and the wire harness on the vehicle body side is positioned in the cover arranged above the position adjusting mechanism. An operation detection mechanism for a braking device for a motorcycle, wherein the operation is detected.