Parking brake device

Patent metadata

Field	Value
Publication number	US-9487192-B2
Application number	US-201314646790-A
Country	US
Kind code	B2
Filing date	Nov 26, 2013
Priority date	Nov 26, 2012
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

A parking brake device comprises: a brake pedal which is capable of pivoting from an initial position in relation to a dash panel in a determined angle range; a pair of base plates which are fixed to the dash panel, and which sandwich and pivotally support the brake pedal; a ratchet plate in which ratchet teeth are continuously formed, and which pivots together with the brake pedal; a support pin which couples the pair of base plates; and a ratchet pawl which is supported by the support pin in a manner so as to be capable of oscillation, and which meshes with the ratchet plate. The support pin and the ratchet pawl are disposed between attachment points at the dash panel side of the base plates and a center pin of the brake pedal.

First claim

The invention claimed is:

1. A parking brake device mounted on a vehicle, comprising:
a brake lever which is rotatable in a predetermined angle range from an initial position with respect to a vehicle body side;
a pair of base plates which are fixed to the vehicle body side and rotatably supports the brake lever via a rotating shaft;
a teeth portion which is formed with a plurality of continuous teeth and rotates together with the brake lever;
a support pin which connects the pair of base plates to each other;
a pawl portion which is swingably supported by the support pin and meshes with the teeth portion;
a brake cable which includes an outer cable and an inner cable, in which one end of the outer cable is attached to the pair of base plates via a cable attachment portion, and one end of the inner cable is supported by the brake lever; and
a cable guide which is provided to the brake lever and is wound with a portion of the inner cable when the brake lever is depressed,
wherein:
when the portion of the inner cable is wound on the cable guide, the teeth portion and the pawl portion are located below the portion of the inner cable which is wound on the cable guide;
the pawl portion is located between the rotating shaft and the cable attachment portion;
the pair of base plates comprises:
a pair of first projecting portions which is disposed on an outer periphery of the rotating shaft; and
a pair of second projecting portions which is spaced from the pair of first projecting portions and respectively disposed at each end portion of the pair of base plates, and

only the brake lever is located between the pair of second projecting portions.

2. The parking brake device according to claim 1 ,
wherein the rotating shaft is located between the pair of base plates,
wherein the teeth portion is rotatably supported on the rotating shaft, and
wherein the brake lever is supported by the rotating shaft via the teeth portion.

3. The parking brake device according to claim 2 ,
wherein a thickness at a portion supported on the rotating shaft of the teeth portion is greater than a thickness in the vicinity of the rotating shaft of the brake lever.

4. The parking brake device according to claim 1 ,
wherein the brake lever has a clearance in a direction perpendicular to an axial direction of the rotating shaft, and is supported on the teeth portion.

5. The parking brake device according to claim 4 ,
wherein the first projecting portions of the pair of base plates clamp only the teeth portion while one of the first projecting portions is inserted through the clearance.

6. The parking brake device according to claim 1 ,
wherein the rotating shaft is located between the pair of base plates,
wherein the teeth portion is rotatably supported on the rotating shaft, and
wherein the brake lever and the teeth portion respectively include shaft holes which are flush with each other and slide with respect to the rotating shaft.

7. The parking brake device according to claim 1 ,
wherein the teeth portion is connected to the brake lever via the connecting pin, and
wherein the connecting pin is located between the first projecting portions and the second projecting portions.

8. The parking brake device according to claim 1 ,
wherein one end of the inner cable is connected to the brake lever via a pivot pin in a rotatable manner, and
wherein the support pin is located rearward of the inner cable, below the pivot pin, and above the cable attachment portion.

Assignees

• Honda Motor Co Ltd

Inventors

• Ohki Takayuki
• Yamanaka Fumikage

Classifications

• G05G1/44

  pivoting · CPC title

• B60T11/046

  Using cables (B60T11/043 takes precedence) · CPC title

• B60T7/042

  by electrical means, e.g. using travel or force sensors · CPC title

• B60T7/045 Primary

  with locking and release means, e.g. providing parking brake application · CPC title

• G05G5/18

  by positive interengagement, e.g. by a pawl · CPC title