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Pressing and actuating mechanism of disc brake device

A disc brake and brake arm technology, applied in the direction of brake actuator, brake type, axial brake, etc., can solve the problem of increasing the swing angle of the brake arm, and achieve less sliding resistance, less sliding, The effect of increasing the multiplier efficiency

Active Publication Date: 2009-03-18
AKEBONO BRAKE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] But even if the brake device of the above-mentioned prior art example 2 is a lever-type caliper brake device, it is not necessarily possible to adopt any adjustment device 106 and the braking force generator to be installed in the connecting device together to adapt to the accompanying disk. Wear of brake pads in sliding contact with the rotor and method for increasing the swing angle of the brake arm
Therefore, although the pad holder is supported by the brake arm so as to be rotatable freely, when the pad holder rotates due to vehicle vibrations, etc., the pad and the disc rotor come into contact to cause a drag phenomenon. The actuator only performs automatic clearance adjustment using the piston 250, the return spring 230 and the friction spring 240 in the gate-shaped brake caliper main body 210, and is not about the lever-type double-force caliper brake like the brake arm device braking device

Method used

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  • Pressing and actuating mechanism of disc brake device
  • Pressing and actuating mechanism of disc brake device
  • Pressing and actuating mechanism of disc brake device

Examples

Experimental program
Comparison scheme
Effect test

no. 2 example

[0071] 9(A) to 9(B) show a brake device according to a second embodiment of the present invention having a spacer bracket with an adjustment function. FIG. 9(A) is a sectional view of the whole brake device in which the adjustment and correction mechanism is disposed on the brake arm side, and FIG. 9(B) is a sectional view of the main part of the brake device.

[0072] As shown in Fig. 9(A) ~ Fig. 9(B), the upper ends 302A, 302A of a pair of brake arms 302, 302 are expanded and pressed, and the pad brackets 301, 301 installed on the lower part of the shaft are fixed The moving blocks 308, 308 perform a pressing action. In the above-mentioned disc brake device, when the brake blocks 308, 308 mounted on the pad brackets 301, 301 are worn and overstroke occurs, regardless of the above-mentioned brake arms 302, Regardless of the posture of 302 , adjustment and correction mechanisms 310 , 310 for maintaining brake pads 308 , 308 and disk rotor R in parallel are provided between bra...

no. 3 example

[0079] 10(A) to 10(C) show a disc brake device according to a third embodiment of the present invention in which the adjustment and correction mechanism is disposed on the side of the pad holder. Fig. 10(A) is a sectional view of the whole brake device, and Fig. 10(B) is a sectional view of main parts of the brake device. In this embodiment, as shown in FIG. 10(B), which is an enlarged view of the lower part of the arm shaft 304 of the brake arm 302 in FIG. 10(A), as shown in FIG. Between the block holders 301 , unlike the device of the second embodiment described above, the configuration inside the block holder 301 is provided above the shaft support portion 305 of the block holder 301 . In addition, a return spring 316 that biases the friction lever 306 that is a part of the adjustment correction mechanism 310 is arranged on the brake arm 302 side.

[0080] As shown in FIG. 10(C), the receiving hole 302C of the brake arm 302 accommodates one end of the friction rod 306 havi...

no. 4 example

[0083] 11(A) to 11(B) show a brake device according to a fourth embodiment of the present invention including a pad holder with an adjustment function. Fig. 11(A) is an overall sectional view of the brake device provided with a link member, and Fig. 11(B) is an operation diagram of main parts of the brake device. In the braking device of the fourth embodiment, as shown in Fig. 11(A) and Fig. 11(B), the adjustment and correction mechanism is provided with a supporting shaft 307A on the upper part of the housing 303 and a supporting shaft on the upper part of the pad brackets 301, 301. The shaft 307B connects the link members 307, 307. With such a configuration, as shown in the operation diagram of FIG. 11(B), the support shafts 307A, 307B, the spacer shaft 305, and the arm shaft 304 are connected in a parallelogram shape. Therefore, the pad holder 301 appropriately follows the movement of the brake arm 302 that excessively swings as shown by the black arrow during the wear of ...

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Abstract

A disc brake device is provided with a wedge rod (20) axially moved by an actuator (4) and orthogonally arranged to a wheel axle, a wedge (5) mounted on the wedge rod (20) and having an inclined surface, a main roller (6) rolling on the inclined surface, and a link (12) rocking in accordance with a movement of the main roller (6). An intermediate portion of the link (12) and a base end of the brake arm (3) are coupled via a gap adjusting mechanism (14). The base end of the brake arm (3) is boosted, pressed, and expanded in accordance with the movement of the main roller (6), and a brake pad disposed at a rocking end of the brake arm (3) is pressed and actuated. A pair of sub-rollers capable of rolling on guide rails are disposed coaxially with the main roller (6) on both sides of the main roller (6).

Description

technical field [0001] The invention relates to a pushing action mechanism of a disc brake device. Background technique [0002] In disc brake devices used in vehicles, especially in disc brakes for railway vehicles, the relative movement between the spring on which the brake is installed and the underspring on which the disc rotor is installed is large, so it is necessary to be able to adapt to this The structure is generally known as a lever-type brake that utilizes the linkage of a link that can easily accommodate a large relative movement (for example, refer to Patent Document 1) [0003] Patent Document 1: JP 2006-315422 [0004] As a conventional example 1, the disc brake apparatus for railway vehicles disclosed in patent document 1 is demonstrated using FIGS. 14(A)-14(D). The disc brake device 401 of the conventional example 1 is equipped with two caliper levers 406, 406 and an actuator 414, wherein the two caliper levers 406, 406 are respectively equipped with brak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D55/22F16D65/18F16D65/54
Inventor 村田幸雄井料干雄吉川和宏进藤隆行
Owner AKEBONO BRAKE IND CO LTD
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