Braking device for joystick type vehicles

Abstract

Provided is a joystick type vehicle brake device that can achieve small size of an interlocking mechanism and ensure good operation of a hydraulic master cylinder for interlocking. A mechanical rear wheel brake (3) is operated by the operation of a brake pedal (5) rotating around a fixed shaft (9), and via an interlocking mechanism (6) having the hydraulic master cylinder (12) for interlocking, ahydraulic front wheel brake (2) is operated in an interlocking manner. The interlocking mechanism (6) includes: the hydraulic master cylinder (12) for interlocking; and a balance bar (13), the intermediate portion of the balance bar being rotatably pivotally supported on the outer surface of the upper end portion of a transmission arm (5b), and a connecting member (8) for operating the rear wheelbrake (3) being coupled to the upper end portion; a hydraulic input rod (14) rotatably supported on the lower side outer surface of the transmitting arm (5b) by the fixed shaft (9), and the upper sideand the balance bar (13) being rotatably coupled and protrudes downward from the fixed shaft (9). A working arm (14a) for operating the hydraulic master cylinder for interlocking (12) protrudes fromthe lower end portion.

Description

technical field [0001] The present invention relates to a brake device for a joystick-type vehicle such as a motorcycle, and more specifically, to a brake pedal that operates a mechanical brake and interlocks a hydraulic brake through an interlocking mechanism. Braking device for joystick-type vehicles that work on the ground. Background technique [0002] Conventionally, as a joystick-type vehicle brake device that operates a mechanical brake through an operation of the brake pedal and operates a hydraulic brake in conjunction with a linkage mechanism, there is a device that uses a fixed shaft to brake the brake. The middle part of the pedal is rotatably supported on the vehicle body, the pedal arm extends from the fixed shaft to the front of the vehicle body, and the transmission arm extends from the rear of the fixed shaft to the upper side of the vehicle body, and the upper end part of the transmission arm rotatably supports the middle part of the balance bar. A push ro...

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned device of Patent Document 1, since the piston of the master cylinder is connected to the upper end of the balance bar protruding upward from the transmission arm above the vehicle body, the master cylinder is arranged at a position away from the fixed shaft, and it is difficult to store it compactly. Linkage mechanism arranged around the brake pedal

In addition, since the pushrod of the master cylinder is connected to the upper end of the balance bar that is installed on the upper portion of the transmission arm and rotates together with the transmission arm, there is a concern that the swing angle of the pushrod will increase, which may affect the cover and piston of the master cylinder.

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