JPH01120464U

JPH01120464U -

Info

Publication number: JPH01120464U
Application number: JP1601688U
Authority: JP
Priority date: 1988-02-09
Filing date: 1988-02-09
Publication date: 1989-08-15
Anticipated expiration: 2003-02-09
Also published as: JPH0622613Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例であるパーキングブ
レーキ操作装置の一部を切り欠いた正面図である
。第２図は第１図の装置の要部を示す断面図であ
る。第３図は第２図における―断面図である
。第４図は第２図における―断面図である。
第５図は第１図の装置におけるレリーズレバーと
ポールとの係合関係を示す斜視図である。第６図
は第１図の装置において操作レバーが引き上げら
れた状態を示す断面図である。第７図は第１図の
装置において操作レバーがパーキングブレーキの
作用状態を維持しつつ原位置まで房された状態を
示す断面図である。第８図は本考案の他の実施例
におけるレリーズレバーおよびポールを示す図で
ある。第９図は第８図の右方からの視図である。
第１０図は本考案の更に別の実施例におけるレリ
ーズレバーおよびポールを示す図である。第１１
図は第１０図における―断面図である。１０：セクタ、１８：ピン（一軸）、２０：操
作レバー、２２，８４：ポールハウジング（作用
部材）、３０：ピン、３４：係合穴、３８：レリ
ーズノブ、４０：レリーズロツド、４４：ブレー
キケーブル、４８，７２，８８：ポール、５０，
７０，８０：レリーズレバー、５２：ピン（回動
軸）、５４：スプリング。 FIG. 1 is a partially cutaway front view of a parking brake operating device that is an embodiment of the present invention. FIG. 2 is a sectional view showing the main parts of the device shown in FIG. 1. FIG. 3 is a cross-sectional view of FIG. 2. FIG. 4 is a cross-sectional view of FIG. 2.
FIG. 5 is a perspective view showing the engagement relationship between the release lever and the pawl in the device shown in FIG. 1. FIG. 6 is a cross-sectional view showing the device shown in FIG. 1 in a state in which the operating lever is pulled up. FIG. 7 is a sectional view showing a state in which the operating lever of the device shown in FIG. 1 is returned to its original position while maintaining the operating state of the parking brake. FIG. 8 is a diagram showing a release lever and a pawl in another embodiment of the present invention. FIG. 9 is a view from the right side of FIG.
FIG. 10 is a diagram showing a release lever and a pawl in yet another embodiment of the present invention. 11th
The figure is a cross-sectional view in FIG. 10: Sector, 18: Pin (single axis), 20: Operation lever, 22, 84: Pole housing (action member), 30: Pin, 34: Engagement hole, 38: Release knob, 40: Release rod, 44: Brake cable, 48, 72, 88: Paul, 50,
70, 80: Release lever, 52: Pin (rotation shaft), 54: Spring.

Claims

[Claims for Utility Model Registration] (1) A pole is arranged to be rotatable about one axis and is engaged with a sector provided in a fixed position, and is attached to be rotatable about an axis parallel to the one axis. an operating member to which a brake cable is locked; an operating lever rotatable about the one axis or an axis parallel to the one axis; and the operating lever rotates from its original position when the parking brake is not applied. When operated, the operating member is rotated around the one axis together with the operating lever, but when the parking brake is in operation, the operating lever is rotated from the original position without rotating the operating member. an engagement mechanism that allows rotation from an operated operating position toward the original position, and the operating member is rotated about the one axis when the operating lever is rotated from the original position. As a result, the brake cable is tightened to apply the parking brake, and the parking brake is maintained in an applied state by engagement between the pole and the sector, and the parking brake is maintained in an applied state. The release knob protrudes from the tip of the operating lever while the operating lever is held at the operating position when the parking brake is applied. By the pushing operation, the engagement between the pawl and the sector is released, and in this state, the operating member is rotated together with the operating lever toward the original position, thereby rendering the parking brake in an inactive state. In this type of parking brake operating device, the operating member, the operating lever, or the pole is arranged to be rotatable about an axis that is the same as or parallel to the pivot axis of the pole, and When the release knob is pushed in while the operating lever is held at the operating position when the parking brake is applied, the pawl is rotated to release the engagement between the pawl and the sector; When the operating lever is rotated from the operating position toward the original position while maintaining the applied state of the brake, the operating lever is allowed to rotate without rotating the pole, and in that state. In order to prevent the pawl from rotating even when the release knob is pushed in, the release lever is connected to the other end of a release rod having the release knob at one end and engaged with the pawl. A parking brake operating device characterized by being provided. (2) The release lever is disposed on the action member so as to be rotatable relative to the pawl around the same axis as the rotational axis of the pawl, and is always rotated in accordance with the biasing force of a spring. However, when the operating lever is rotated from the operating position toward the original position while the parking brake is in operation, the operating lever resists the biasing force of the spring. The parking brake operating device according to claim 1, wherein the parking brake operating device is rotatable relative to the pawl.