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Hydraulic pressure controller, hydraulic brake system, and bicycle

A technology for a control device and a bicycle, which is applied to bicycle frames, bicycle accessories, bicycle brakes, etc., can solve the problems of unstable control of brake fluid hydraulic pressure, unstable control of braking force, and increased stress, and achieves the goal of suppressing becoming unsteady. stable effect

Active Publication Date: 2018-08-03
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in such a case, if the hydraulic control device is mounted on the head pipe similarly to the tension control device, the brake lever and the hydraulic control device are connected, for example, by the user's turning operation of the handlebar. Stress occurs in the brake fluid pipe of the front wheel brake device and the brake fluid pipe connecting the hydraulic control device, etc., and the control of the hydraulic pressure of the brake fluid becomes unstable.
In addition, in bicycles, since the angle range in which the handlebar can be rotated is designed to be larger than that of motorcycles, the generated stress tends to increase, so it is obvious that the control of the hydraulic pressure of the brake fluid becomes unstable. Case
[0006] That is, in the case of adopting a hydraulic brake system in a bicycle, if at least a control device for controlling the braking force generated in the front wheel brake portion is installed at the same position as the brake system of a conventional bicycle, there will be constraints. The problem that the control of power tends to become unstable, and for the hydraulic brake system, the stress generated in the brake transmission path has a more profound influence

Method used

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  • Hydraulic pressure controller, hydraulic brake system, and bicycle
  • Hydraulic pressure controller, hydraulic brake system, and bicycle
  • Hydraulic pressure controller, hydraulic brake system, and bicycle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0028] Hereinafter, the hydraulic brake system according to Embodiment 1 will be described.

[0029]

[0030] An application form of the hydraulic brake system according to Embodiment 1 to a bicycle will be described.

[0031] figure 1 It is a diagram showing a schematic configuration of a hydraulic brake system according to Embodiment 1 of the present invention and a bicycle to which it is applied. In addition, in figure 1 In , the case where the bicycle 200 is a two-wheeled vehicle is shown, but the bicycle 200 may be other bicycles such as a tricycle.

[0032] Such as figure 1 As shown, the bicycle 200 includes a frame 1 , a swivel portion 10 , a seat 21 , pedals 22 , a rear wheel 23 , and a rear wheel brake portion 24 .

[0033] The frame 1 includes a head tube 1A pivotally supporting the steering column 11 of the swivel part 10, a top tube 1B and a down tube 1C connected to the head tube 1A, and a seat 21 connected to the top tube 1B and the down tube 1C. The seat ...

Embodiment approach 2

[0091] Hereinafter, a hydraulic brake system according to Embodiment 2 will be described.

[0092] Note that descriptions that overlap with those of the hydraulic brake system according to Embodiment 1 are appropriately omitted. In addition, the case where the handlebar stem 12 is a so-called front stem will be described below, but the handlebar stem 12 may be of another type.

[0093]

[0094] An application form of the hydraulic control device of the hydraulic brake system according to Embodiment 2 to a bicycle will be described.

[0095] Figure 7 It is a partial cross-sectional view of the hydraulic brake system according to Embodiment 2 of the present invention and a hydraulic control device of a bicycle to which it is applied.

[0096] like Figure 7 As shown, a through hole is formed at one end of the connecting portion 123 , and one end thereof is connected by a screw 52 for holding the handlebar stem 13 on the handlebar stem 12 . That is, the connecting portion ...

Embodiment approach 3

[0108] Hereinafter, a hydraulic brake system according to Embodiment 3 will be described.

[0109] In addition, descriptions that overlap with those of the hydraulic brake systems according to Embodiment 1 and Embodiment 2 are appropriately omitted. In addition, the application form of the hydraulic control device 110 of the hydraulic brake system 100 to the bicycle 200 described below is the same as that of the first embodiment, but it may be the same as that of the second embodiment.

[0110]

[0111] An application form of the hydraulic control device of the hydraulic brake system according to Embodiment 3 to a bicycle will be described.

[0112] Figure 10 It is a partial cross-sectional view of the hydraulic brake system according to Embodiment 3 of the present invention and a hydraulic control device of a bicycle to which it is applied.

[0113] Such as Figure 10 As shown, the connecting portion 123 includes a stopper portion 123A covering at least a part of the side...

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PUM

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Abstract

The invention obtains a hydraulic pressure controller (110) whose control of a braking force is suppressed from becoming usable. The invention also obtains a hydraulic brake system that includes sucha hydraulic pressure controller, and a bicycle (200). A hydraulic pressure controller controls hydraulic pressure of a brake fluid that is at least supplied to a front-wheel braking section (17) of abicycle, and includes: a base section (121) that is formed with a channel (12), through which the brake fluid flows, therein; a valve (13) that is attached to the base section and opens and closes thechannel; and a coupling section (123) that couples the base section to the bicycle. The coupling section is coupled to a turning section (10) about an axis of a head tube 1A.

Description

technical field [0001] The present invention relates to a hydraulic control device for controlling the hydraulic pressure of brake fluid supplied to at least a front wheel brake portion of a bicycle, a hydraulic brake system including the hydraulic control device, and a bicycle including the hydraulic brake system. Background technique [0002] As a conventional braking system of a bicycle, for example, there is a structure including a front wheel braking unit that brakes the rotation of the front wheel, a wire, and a tension control device. The wire generates tension corresponding to the user's operation to change the braking force generated by the front wheel brake. The tension control device controls the tension generated in the wire to control the tension generated in the front wheel brake. Braking force. The tension control device is mounted on a head tube of a bicycle that pivotally supports a turning portion that turns together with a handlebar (for example, refer to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/36B62L3/02B62K21/00
CPCB62L3/023B60T8/3225B60T8/3685B62K19/32B62K19/38B62K21/12B60Y2400/81B62K23/06
Inventor 池田茂树
Owner ROBERT BOSCH GMBH