JP2019026235A - Brake device of saddle-riding type vehicle - Google Patents

Abstract

To enable reaction force adjustment by adjusting the position of a brake pedal and the contracting amount of a coil spring in a state that a brake device is kept installed to a saddle-riding type vehicle without disassembly.SOLUTION: A brake device of a saddle-riding type vehicle comprises a master cylinder that receives operation force from a brake pedal, and comprises: a main rod coaxially screwed to a cylinder rod that is extendedly provided on the master cylinder; a pedal rod that is connected to the brake pedal and is coaxially screwed to the main rod; an adjust nut screwed at an intermediate position of the main rod; and a coil spring that is intermediate between the master cylinder and the adjust nut and has opposite ends abating on first and second receiving seats. The height of the brake pedal is adjusted by rotating the main rod to change the position of the pedal rod. Reaction force is adjusted by rotating the adjust nut relative to the main rod to change the position of the second receiving seat and adjust the contracting amount of the coil spring.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a brake device for a saddle-ride type vehicle including a master cylinder that operates in response to an operation force from a brake pedal.

  Conventionally, for the purpose of easily adjusting a reaction force against a brake pedal, Japanese Patent Application Laid-Open No. 2013-136322 discloses a receiving side retainer that supports a lower end of a coil spring that applies a reaction force to a brake pedal. A brake device for a saddle-ride type vehicle is disclosed in which the amount of contraction of a coil spring is changed by changing the position of the rod.

JP 2013-136322 A

  With the technique disclosed in Patent Document 1, it is possible to adjust the reaction force against the brake pedal. However, in order to fix the rod of the reaction force adjusting mechanism, the input side lock nut is provided inside the coil spring, and the operation of loosening or tightening the input side lock nut cannot be performed as it is (Patent Document 1). (See FIG. 4, FIG. 6, etc.). For this reason, in order to adjust the amount of contraction of the coil spring by changing the position of the rod of the reaction force adjustment mechanism, it is necessary to disassemble the reaction force adjustment mechanism and its periphery. In addition, if the adjusted position is not assembled without disassembling the parts, the feel of the brake pedal cannot be confirmed, and reassembling and reassembling may be necessary due to insufficient adjustment.

  The present invention has been made in view of the above points, and the coil for applying a reaction force to the position of the brake pedal and the brake pedal while dismounted in the saddle riding type vehicle without disassembling the brake device. An object of the present invention is to provide a brake device for a saddle-ride type vehicle that can adjust both the amount of spring contraction.

(1) A saddle-ride type vehicle brake device according to the present invention includes:
In a brake device for a saddle-ride type vehicle including a brake pedal and a master cylinder that operates in response to an operation force from the brake pedal,
A cylinder rod extending from the master cylinder;
A main rod screwed coaxially with the cylinder rod;
A pedal rod coupled to the brake pedal, screwed coaxially with the main rod, and transmitting an operating force from the brake pedal to the main rod;
An adjustment nut screwed to an intermediate position of the main rod;
A coil spring provided between the adjustment nut and the master cylinder;
Abutting on one end of the coil spring and provided on the master cylinder side,
A first seat abutted against the master cylinder;
A second seat that contacts the other end of the coil spring and contacts the master cylinder side of the adjustment nut;
By rotating the main rod with respect to the pedal rod, the position of the pedal rod changes and the position of the brake pedal can be adjusted.
The position of the second seat is changed by rotating the adjustment nut with respect to the main rod, so that the amount of contraction of the coil spring can be adjusted.

According to the brake device for a saddle-ride type vehicle of the present invention, since the adjustment nut is screwed at an intermediate position of the main rod, the main rod protrudes from the adjustment nut toward the pedal rod. For this reason, without disassembling the brake device of the saddle-ride type vehicle, a tool is applied to a part of the protruding main rod while being mounted on the vehicle body, and the main rod is rotated with respect to the pedal rod. The position of the brake pedal can be adjusted.
The adjustment nut is screwed into the middle position of the main rod when the axial dimension of the main rod is longer than the axial dimension of the adjustment nut, and the adjustment nut is screwed into the main rod. It is intended that the both ends of the main rod protrude from the adjustment nut in the axial direction.

Moreover, since the 2nd seat and the coil spring are provided in the master cylinder side from the adjustment nut, the adjustment nut is exposed.
For this reason, without disassembling the brake device of the saddle-ride type vehicle, a tool is applied to the adjustment nut while it is mounted on the vehicle body, the adjustment nut is rotated with respect to the main rod, and the amount of contraction of the coil spring is reduced. Can be adjusted.

(2) A preferred example of a brake device for a saddle-ride type vehicle according to the present invention is:
A first lock nut that restricts the rotation of the main rod relative to the pedal rod and a second lock nut that restricts the rotation of the adjustment nut relative to the main rod.

  According to a preferred example of the brake device for a saddle-ride type vehicle according to the present invention, since the first lock nut for restricting the rotation of the main rod with respect to the pedal rod is provided, an unintended main when adjusting the adjustment nut or during traveling is provided. The rotation of the rod can be prevented. In addition, since the second lock nut that restricts the rotation of the adjustment nut relative to the main rod is provided, unintentional rotation of the adjustment nut can be prevented when the main rod is adjusted or traveled. Furthermore, by tightening the adjustment nut and the second lock nut as a double nut, the main rod can be rotated by applying a tool to the adjustment nut or the second lock nut during the adjustment of the main rod. Become.

(3) A preferred example of a brake device for a saddle-ride type vehicle according to the present invention is:
The cylinder rod and the main rod are screwed and fixed, and the cylinder rod is also rotated as the main rod is rotated.

  According to a preferred example of the brake device for a saddle-ride type vehicle according to the present invention, the cylinder rod and the main rod are fixed, and the cylinder rod also rotates with the rotation of the main rod. All of the above can be configured with positive screws, and the configuration of the apparatus can be simplified.

(4) A preferred example of a brake device for a saddle-ride type vehicle according to the present invention is:
The main rod comprises a cylindrical shaft body,
It is provided with a female screw provided in a concave shape in the axial direction from one end of the shaft body, and a male screw provided on the outer periphery from one end to the other end of the shaft body.

  According to a preferred example of the brake device for a saddle-ride type vehicle of the present invention, it is possible to configure all of the cylinder rod, the main rod, and the pedal rod with positive screws as in the above-described invention, thereby simplifying the configuration of the device. can do.

  As described above, according to the brake device for a saddle-ride type vehicle of the present invention, the position of the brake pedal and the reaction force to the brake pedal can be maintained without disassembling the brake device while being attached to the saddle-ride type vehicle. Both of the adjustments of the amount of contraction of the coil spring for imparting can be made adjustable.

1 is an exploded perspective view of a brake device according to an embodiment of the present invention. It is a right view of the brake device concerning the embodiment of the present invention. It is an adjustment related figure of the brake equipment concerning the embodiment of the present invention. It is sectional drawing of the brake device which concerns on embodiment of this invention.

  Embodiments of a brake device for a saddle-ride type vehicle according to the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, the brake device for a saddle-ride type vehicle according to the present embodiment is attached to a frame of a saddle-ride type vehicle (not shown) via a step bracket 19 and the like, and includes a brake pedal 1, a pedal rod 10, A rod 9, an adjustment nut 6, and a coil spring 4 are provided.
When the operating force of the brake pedal 1 is transmitted, the hydraulic pressure generated in the master cylinder 2 is transmitted to a brake caliper (not shown) through a brake hose (not shown) to operate a brake pad (not shown).

  Next, details of each part of the brake device of the saddle-ride type vehicle according to the present embodiment will be described with reference to FIGS. The brake pedal 1 is pivotally supported on the step bracket 19 by a bearing 17 and a brake pedal mounting bolt 18 or the like. Then, when the operator who puts his / her foot on the step bar 16 steps on the front foot 15 part of the brake pedal 1, the rear end rises. Further, a connecting portion including a connecting collar 11, a connecting bolt 12, and a connecting nut 13 is provided at the rear end of the brake pedal 1. By this connecting portion, the pedal rod 10 is rotatably connected to the rear end of the brake pedal 1 with a direction that is horizontal and orthogonal to the traveling direction of the saddle riding type vehicle as an axis. Further, a concave female screw is provided at the upper end of the pedal rod 10. The pedal rod 10 is provided with two parallel flat portions so that a tool such as a spanner can be applied.

The main rod 9 is screwed coaxially with the pedal rod 10 to the female screw of the pedal rod 10 described above, is constituted by a cylindrical shaft body, and a male screw is provided on the outer periphery of the shaft body. Further, a female screw provided in a concave shape in the axial direction from the end of the shaft body is provided at one end of the main rod 9 on the master cylinder 2 side. In this embodiment, an internal thread penetrating in the axial direction is provided.
A first lock nut 8 is screwed to the main rod 9. The first lock nut 8 is provided closest to the pedal rod 10 among the nuts screwed to the main rod 9. When the first lock nut 8 is fastened to the pedal rod 10, the first lock nut 8 is in a double nut state together with the pedal rod 10. The rotation of the main rod 9 can be restricted.

  The master cylinder 2 generates a hydraulic pressure as described above, and a cylinder rod 14 for transmitting an input for generating the hydraulic pressure is extended. The cylinder rod 14 can be freely rotated with respect to the main body portion of the master cylinder 2. A male screw is provided at the tip of the cylinder rod 14. A male screw of the cylinder rod 14 is coaxially screwed to a female screw provided at one end of the main rod 9 described above. In the brake device for a saddle-ride type vehicle according to the present embodiment, the cylinder rod 14 and the main rod 9 are screwed together until the tip of the main rod 9 reaches the root of the male screw of the cylinder rod 14 and is further tightened. And are fixed. As a result, the cylinder rod 14 is also rotated simultaneously with the rotation of the main rod 9.

  The adjustment nut 6 is a member that determines the amount of contraction of the coil spring 4, and is screwed to an intermediate position of the main rod 9. The adjusting nut 6 is provided on the most side of the master cylinder 2 among the nuts screwed to the main rod 9. Between the adjusting nut 6 and the master cylinder 2, a first seat 3 and a second seat 2 described later are provided. A seat 5 and a coil spring 4 are provided.

  The first seat 3 is abutted against one end of the coil spring 4 and is a substantially donut-shaped member that receives the repulsive force of the coil spring 4. The center hole of the first seat 3 is penetrated by the cylinder rod 14 or the main rod 9, and the annular portion is abutted against the main body of the master cylinder 2 and is fixed without moving.

  The second receiving seat 5 is abutted against the other end of the coil spring 4 and is a substantially donut-shaped member that receives the repulsive force of the coil spring 4 as in the first receiving seat 3. The center hole of the second receiving seat 5 passes through the cylinder rod 14 or the main rod 9, and the annular portion is in contact with the master cylinder 2 side of the adjustment nut 6. As the position of the adjusting nut 6 changes, the main rod 9 can move in the axial direction, and the distance from the first seat 3 can be changed.

  One end of the coil spring 4 is in contact with the first receiving seat 3 and the other end is in contact with the second receiving seat 5 so that the coil spring 4 is sandwiched between the first receiving seat 3 and the second receiving seat 5. . A main rod 9 and a cylinder rod 14 are passed through the shaft of the coil spring 4. Then, by pushing the second seat 5 against the first seat 3 with the repulsive force of the coil spring 4 itself, the repulsive force is transmitted to the pedal rod 10, the main rod 9, the pedal rod 10, and the connecting portion. Demonstrates the force to return the brake pedal 1 to its original position. Further, the distance between the first receiving seat 3 and the second receiving seat 5 is changed by the change in the position with respect to the main rod 9 due to the rotation of the adjusting nut 6, and the amount of contraction of the coil spring 4 can be changed.

  The second lock nut 7 is screwed to the main rod 9 and is provided between the adjustment nut 6 and the first lock nut 8. The second lock nut 7 is fastened to the adjustment nut 6 and is in a double nut state together with the adjustment nut 6. As a result, the adjustment nut 6 can be restricted from rotating with respect to the main rod 9.

  Next, the operation and adjustment method of the brake device for the saddle type vehicle according to the present embodiment will be described based on the components of the brake device for the saddle type vehicle according to the present embodiment.

  As shown in FIGS. 3A and 4, the coil spring 4 is supported at the upper end by the first receiving seat 3 provided coaxially with the main rod 9, and the adjusting nut 6 is brought into contact with the second receiving seat 5. The lower end is supported by, and the adjustment nut 6 is fastened by the second lock nut 7.

The reaction force is adjusted by adjusting the amount of contraction of the coil spring 4.
When adjusting, the second lock nut 7 screwed to the main rod 9 with a positive screw and fastened to the adjustment nut 6 is loosened by turning counterclockwise to release the locked state. Next, when the adjustment nut 6 is used as a tool and the adjustment nut 6 is turned counterclockwise with respect to the main rod 9, the value a in FIG. 3A changes to b and becomes weaker as shown in FIG. 3B. be able to. When the adjustment nut 6 is turned clockwise, the value b in FIG. 3B changes to a in FIG. 3A, and the reaction force can be increased. After the adjustment is completed, the second lock nut 7 is fastened and the adjustment nut 6 is fastened and fixed.

The adjustment of the pedal height is performed by rotating the first lock nut 7 fastened to the adjustment nut 6 with the effect of adjusting the effective length of the female thread portion of the pedal rod 10 screwed to the main rod 9.
The adjustment is performed by loosening the first lock nut 8 and turning the main rod 9 by applying a tool to the adjustment nut 6 and the second lock nut 7 fastened to the main rod 9. When a tool is put on the second lock nut 7 screwed on the positive screw and the main rod 9 is turned clockwise with respect to the pedal rod, the pedal height decreases, and when turned counterclockwise, the value shown in FIG. x changes to y in FIG. 3 (C) and the pedal height increases.
As described above, the main rod 9 and the cylinder rod are screwed and fixed, and the master cylinder 2 rotates freely. Therefore, the amount of contraction of the spring 4 does not change, so the reaction force does not change, and can be adjusted completely independently. .
After the height adjustment is completed, the first lock nut 8 is fastened and the pedal rod 10 is fastened and fixed.

  In the brake device for a saddle-ride type vehicle according to the present embodiment, the reaction force adjustment and the pedal height adjustment mechanism are independent of each other, and the existing coil spring 4 is used as it is in the reaction force adjustment and the pedal height adjustment. It is possible to work with the brake device of the saddle-ride type vehicle installed without being disassembled.

DESCRIPTION OF SYMBOLS 1 Brake pedal 2 Master cylinder 3 1st seat 4 Coil spring 5 2nd seat 6 Adjustment nut 7 2nd lock nut 8 1st lock nut 9 Main rod 10 Pedal rod 11 Connection collar 12 Connection bolt 13 Connection nut 13 Connection rod 14 Cylinder rod 15 Stepping part 16 Step bar 17 Bearing 18 Brake pedal mounting bolt 19 Step bracket

Claims (4)

In a brake device for a saddle-ride type vehicle including a brake pedal and a master cylinder that operates in response to an operation force from the brake pedal,
A cylinder rod extending from the master cylinder;
A main rod screwed coaxially with the cylinder rod;
A pedal rod coupled to the brake pedal, screwed coaxially with the main rod, and transmitting an operating force from the brake pedal to the main rod;
An adjustment nut screwed to an intermediate position of the main rod;
A coil spring provided between the adjustment nut and the master cylinder;
A first seat that is in contact with one end of the coil spring and provided on the master cylinder side;
A second seat abutting against the other end of the coil spring and abutting against the adjusting nut;
The position of the pedal rod is changed by rotating the main rod with respect to the pedal rod, and the height of the brake pedal can be adjusted.
A straddle-type vehicle brake device characterized in that the amount of contraction of the coil spring can be adjusted by changing the position of the second seat by rotating the adjustment nut with respect to the main rod. The first lock nut for restricting the rotation of the main rod with respect to the pedal rod, and the second lock nut for restricting the rotation of the adjustment nut with respect to the main rod. Brake system for saddle-ride type vehicles.   The brake for a saddle-ride type vehicle according to claim 1 or 2, wherein the cylinder rod and the main rod are screwed and fixed, and the cylinder rod also rotates as the main rod rotates. apparatus. The main rod comprises a cylindrical shaft body,
4. A female screw provided in a concave shape in an axial direction from one end of the shaft body and to which the cylinder rod is screwed, and a male screw provided on an outer periphery from one end to the other end of the shaft body. The brake device for saddle-ride type vehicles described in 1.

Images