JP4669855B2

JP4669855B2 - Parking brake device

Info

Publication number: JP4669855B2
Application number: JP2007126726A
Authority: JP
Inventors: 良和金原
Original assignee: 株式会社ベルソニカ
Priority date: 2007-05-11
Filing date: 2007-05-11
Publication date: 2011-04-13
Anticipated expiration: 2027-05-11
Also published as: JP2008279927A

Description

本発明は車両を停車位置に保持するパーキングブレーキ装置に関し、更に詳しくは、パーキングブレーキの操作を行うための初動装置に係わるものである。 The present invention relates to a parking brake device for holding a vehicle at a stop position, and more particularly to an initial device for operating a parking brake.

パーキングブレーキの初動装置には、レバー式やステッキ式、足踏み式などの方式がある。このうちレバー式および足踏み式のパーキングブレーキ装置には、レリーズボタンやレリーズレバーなどの解除機構を用いて解除操作を行う方式と、これら解除機構を用いずに、ブレーキレバーやブレーキペダル自体を再操作することによって解除操作を行う方式がある（特許文献１〜４参照）。 There are various types of parking brake initial devices such as a lever type, a stick type, and a stepping type. Of these, the lever-type and foot-type parking brake devices use a release mechanism such as a release button or release lever, and re-operate the brake lever or brake pedal without using the release mechanism. There is a method of performing a release operation by doing (see Patent Documents 1 to 4).

上記後者は、前者に比べて部品点数が少なく、製造コスト的に有利であり、また、足踏み式においては、手を使わずに足だけで解除操作が行えるようになる利点がある。その反面、ラチェットに爪を係合または離脱させるためにスプリングの付勢方向の切換を、ペダルあるいはレバー操作のみで確実に行いうる機構が要求され、却って部品点数の増加や機構の複雑化を招いたり、寸法精度の許容範囲が狭くなり、動作の安定性や耐久性を低下させたりすることにもなりかねない。 The latter has an advantage in that the number of parts is smaller than that of the former and is advantageous in terms of manufacturing cost. In addition, the stepping type has an advantage that the releasing operation can be performed only with the foot without using the hand. On the other hand, in order to engage or disengage the pawl from the ratchet, a mechanism that can reliably switch the biasing direction of the spring only by operating the pedal or lever is required. On the other hand, the number of parts increases and the mechanism becomes complicated. In other words, the allowable range of dimensional accuracy may be narrowed, and operation stability and durability may be reduced.

特に、ブレーキペダルやブレーキレバーの操作位置では、ブレーキワイヤーの張力やリターンスプリングの付勢力によるペダルやレバーに対する引き戻しを利用して、比較的容易にスプリングの付勢方向を転換できるものの、ペダルやレバーを不作用位置に復帰させる際には、リターンスプリングの付勢方向は不変である。次のブレーキ操作時におけるペダルやレバーの回動を利用して反転させることもできるが、反転に至るまでの空走区間が生じるため、確実な反転動作のためには、ペダルやレバーが不作用位置に復帰した時点で反転させる確定的な反転手段が必要になる。 In particular, at the operating position of the brake pedal and brake lever, the spring biasing direction can be changed relatively easily by using the brake wire tension or the return spring biasing force to pull back the pedal or lever. When returning to the inoperative position, the urging direction of the return spring remains unchanged. It can also be reversed using the rotation of the pedal or lever during the next brake operation, but there will be a free running section until it reverses, so the pedal and lever will not work for reliable reversing operation. A definite reversing means for reversing when returning to the position is required.

特許文献１には、不作用位置に設けたリセットアームで爪部材を反転させる例が示されているが、解除時にペダルが完全にフリーになり、リセットアームと爪部材との衝突による衝撃が大きいうえ、不作用位置での爪部材の姿勢が不安定であり、確実な反転を行いうる寸法精度の許容範囲が狭いという問題がある。特許文献２〜４では、他部材を追加した結果、部品点数や組付けコストの削減にはならず、また、特許文献２、４では、２つのスプリングを伴って可動部材同士が連結されているため、機構の自由度が大きく、安定的な動作や耐久性、および組付け性の点で課題を残している。 Patent Document 1 shows an example in which a claw member is reversed by a reset arm provided at a non-operating position. However, when released, the pedal becomes completely free, and the impact caused by the collision between the reset arm and the claw member is large. In addition, the position of the claw member at the non-operating position is unstable, and there is a problem that the allowable range of dimensional accuracy that can be reliably reversed is narrow. In Patent Documents 2 to 4, as a result of adding other members, the number of parts and assembly costs are not reduced. In Patent Documents 2 and 4, the movable members are connected together with two springs. Therefore, the degree of freedom of the mechanism is large, and problems remain in terms of stable operation, durability, and assembly.

特開昭６４−１８７５５号公報Japanese Patent Application Laid-Open No. 64-18755 特開平９−２６７７２９号公報JP-A-9-267729 特許第２９６７４０６号公報Japanese Patent No. 2967406 特許第３５９４６４７号公報Japanese Patent No. 3559447

本発明はこのような実状に鑑みてなされたものであって、その目的は、レバーやペダルの再操作により解除操作を行う方式において、構造が簡素で部品点数が少なく、部品の組付けを容易に行え、製造コストを削減可能であり、かつ、ロックや解除に係わる動作も確実に行えるパーキングブレーキ装置を提供することにある。 The present invention has been made in view of such a situation, and an object of the present invention is to perform a release operation by re-operating a lever or a pedal, and has a simple structure, a small number of parts, and easy assembly of parts. It is an object of the present invention to provide a parking brake device that can be manufactured at a reduced cost and can reliably perform operations related to locking and releasing.

上記従来技術の有する課題を解決することを目的として、本発明は、
車体側に固定されたベースプレート（２）と、
前記ベースプレートに回動可能に支持され、不作用位置からの回動操作によってパーキングブレーキワイヤ（１１）を引張可能なレバー本体（３）と、
前記ベースプレートまたは前記レバー本体のいずれか一方に設けたラチェット（２１）と、
前記ベースプレートまたは前記レバー本体の他方に設けた支持ピン（３０）に長孔（４０）が係合することにより、前記長孔方向の摺動を許容した状態で回動可能に支持され、前記長孔方向の前記不作用位置側の端部に、前記ラチェットに係合可能な爪部（４１）が突設され、前記爪部に隣接して前記長孔方向と略平行な平坦部（４２）が形成されている爪部材（４）と、
前記ベースプレートまたは前記レバー本体の他方と、前記爪部材の前記長孔側方の係合部との間に介在し、前記爪部材を、前記支持ピンに対する前記長孔の係合位置および角度に応じた回動方向に付勢して、前記爪部を前記ラチェットに係合または離脱させる付勢部材（５）と、を備え、
前記レバー本体（３）の回動操作時には、前記支持ピン（３０）が前記長孔（４０）の前記爪部（４１）と反対側に位置し、前記付勢部材（５）の付勢により前記爪部が前記ラチェット（２１）に係合しており、前記レバー本体（３）の回動操作を停止すると、前記支持ピン（３０）が前記長孔の前記爪部側に移動した状態で前記レバー本体がロックされ、このロック状態から前記レバー本体に操作力を再度付加することで、前記爪部（４１）が前記ラチェット（２１）から離脱して、前記レバー本体のロックが解除されるパーキングブレーキ装置（１）において、
前記ラチェット（２１）の前記不作用位置に対応した端部に、前記爪部材（４）の爪部外側縁に当接可能な第１縁部（６１）と、前記爪部材の平坦部（４２）に当接可能な第２縁部（６２）とを備えた反転ストッパ（６）が、所定の角度範囲（θ）で回動可能に設けられており、前記レバー本体（３）が不作用位置に復帰する動作により前記反転ストッパ（６）が回動し、前記平坦部（４２）が前記第２縁部（６２）で押し上げられると同時に、前記爪部（４１）が前記第１縁部（６１）で押し下げられることで、前記爪部材（４）に対する前記付勢部材（５）の付勢方向（ｙ）が、前記爪部（４１）を前記ラチェット（２１）に係合させる方向に反転するように構成されていることを特徴とする。 For the purpose of solving the above-mentioned problems of the prior art, the present invention provides:
A base plate (2) fixed to the vehicle body side;
A lever body (3) supported rotatably on the base plate and capable of pulling the parking brake wire (11) by a rotation operation from the non-operating position;
A ratchet (21) provided on either the base plate or the lever body;
By engaging a long hole (40) with a support pin (30) provided on the other of the base plate or the lever body, the long pin (40) is supported so as to be able to rotate while allowing sliding in the long hole direction. A claw portion (41) that can be engaged with the ratchet protrudes from an end of the hole direction on the non-acting position side, and a flat portion (42) that is adjacent to the claw portion and substantially parallel to the long hole direction. A claw member (4) formed with
And other side of the base plate or the lever body, and interposed between the long hole side of the engagement portion of the pawl member, the pawl member, the engagement position and angle of the slot relative to the support pin A biasing member (5) that biases the claw portion to engage or disengage from the ratchet by biasing in a corresponding rotation direction;
When the lever body (3) is rotated, the support pin (30) is positioned on the opposite side of the claw portion (41) of the elongated hole (40), and the biasing member (5) biases it. When the claw portion is engaged with the ratchet (21) and the rotation operation of the lever body (3) is stopped, the support pin (30) is moved to the claw portion side of the long hole. The lever body is locked, and when the operating force is applied again to the lever body from this locked state, the claw portion (41) is detached from the ratchet (21), and the lever body is unlocked. In the parking brake device (1),
A first edge portion (61) capable of contacting the outer edge of the claw member (4) and a flat portion (42) of the claw member at an end portion of the ratchet (21) corresponding to the inoperative position. ) Is provided with a reversing stopper (6) having a second edge portion (62) capable of abutting on a predetermined angular range (θ), and the lever body (3) is inoperative. The reverse stopper (6) is rotated by the operation of returning to the position, and the flat portion (42) is pushed up by the second edge portion (62), and at the same time, the claw portion (41) is moved to the first edge portion. By being pushed down by (61), the urging direction (y) of the urging member (5) with respect to the claw member (4) is in a direction to engage the claw portion (41) with the ratchet (21). It is comprised so that it may invert.

本発明の好適な態様では、前記反転ストッパは、前記ラチェットの両側面に沿って配設された一対の側壁部（６ａ、６ａ）を備え、前記各側壁部の基端側において回動自在に支持される一方、前記各側壁部の先端の一側で一体に連結され、該連結部（６ｂ）に前記第１縁部（６１）が画成され、前記各側壁部の先端の他側に、それぞれ前記第２縁部（６２、６２）が画成されており、前記レバー本体の回動操作時に、前記爪部が前記各第２縁部の間を通過可能である。 In a preferred aspect of the present invention, the reversing stopper includes a pair of side wall portions (6a, 6a) disposed along both side surfaces of the ratchet, and is rotatable at the base end side of each side wall portion. While being supported, they are integrally connected at one side of the tip of each side wall, and the first edge (61) is defined at the connecting part (6b). The second edge portions (62, 62) are defined, respectively, and the claw portion can pass between the second edge portions when the lever body is rotated.

さらに、本発明の好適な態様では、前記反転ストッパの前記連結部（６２）に、前記ラチェットが設けられている前記ベースプレートまたは前記レバー本体の縁部に当接し、前記反転ストッパの回動範囲（θ）を規制する第３縁部（６３）が画成されている。また、前記反転ストッパが、樹脂成形品で構成されている。 Furthermore, in a preferred aspect of the present invention, the connecting portion (62) of the reversing stopper abuts on an edge of the base plate or the lever body on which the ratchet is provided, and the rotation range of the reversing stopper ( A third edge (63) is defined that regulates θ). Moreover, the said reverse stopper is comprised by the resin molded product.

本発明に係わるパーキングブレーキ装置は、上述したように、爪部材に第１縁部および第２縁部で当接可能な反転ストッパが、所定の角度範囲で回動可能に設けられているので、これら２つの縁部と支持ピンとの３点で拘束された爪部材が、レバー本体の不作用位置への復帰動作により、反転ストッパとともに回動し、爪部材の平坦部が第２縁部で押し上げられると同時に、爪部が第１縁部で押し下げられることで、爪部材に対する付勢部材の付勢方向が、爪部をラチェットに係合させる方向に確実に反転されるとともに、その反転状態で安定的に保持され、爪部材の振動や異音の発生を防止できる。また、ブレーキ操作時に爪部材とともに反転ストッパが回動できるので、上記回動反転された保持状態からの始動が円滑になり、確実なブレーキ操作が可能となる。 In the parking brake device according to the present invention, as described above, the reversing stopper capable of contacting the claw member at the first edge portion and the second edge portion is provided so as to be rotatable within a predetermined angle range. The claw member restrained at the three points of these two edge portions and the support pin is rotated together with the reverse stopper by the return operation to the inactive position of the lever body, and the flat portion of the claw member is pushed up by the second edge portion. At the same time, the urging direction of the urging member with respect to the claw member is reliably reversed in the direction in which the claw portion is engaged with the ratchet by the depression of the claw portion at the first edge portion, and in the reversed state It is stably held, and the vibration of the claw member and the generation of abnormal noise can be prevented. Further, since the reverse stopper can be rotated together with the claw member during the brake operation, the start from the rotationally reversed holding state becomes smooth, and the reliable brake operation is possible.

さらに、ロック状態から解除操作を行った場合に、爪部材の平坦部がラチェットに当接した状態でレバー本体が不作用位置に復帰するので、ロック解除時の衝撃が少なく、静粛な復帰動作が可能でありながらも、構造が簡素で部品点数が少なく、部品の組付け工数および製造コストを削減可能であり、特に、ロックおよび解除に係わる可動部品が、爪部材、反転ストッパ、付勢部材（スプリング）の３部品のみであるため、組付け作業を容易に行えるとともに、動作の安定性や耐久性を向上するうえで有利である。 Furthermore, when the release operation is performed from the locked state, the lever body returns to the non-operating position with the flat part of the claw member contacting the ratchet. Although it is possible, the structure is simple, the number of parts is small, and the assembly man-hours and manufacturing costs of parts can be reduced. In particular, movable parts related to locking and unlocking include claw members, reverse stoppers, biasing members ( Since there are only three parts (spring), the assembly work can be easily performed, and it is advantageous in improving the stability and durability of the operation.

また、前記反転ストッパは、前記ラチェットの両側面に沿って配設された一対の側壁部を備え、前記各側壁部の基端側において回動自在に支持される一方、前記各側壁部の先端の一側で一体に連結され、該連結部に前記第１縁部が画成され、前記各側壁部の先端の他側に、それぞれ前記第２縁部が画成されており、前記レバー本体の回動操作時に、前記爪部が前記各第２縁部の間を通過可能である態様では、反転ストッパが、ラチェットが設けられているベースプレートまたはレバー本体の縁部に跨った状態で安定的に支持され、確実な動作が可能であるとともに、組み付け性も良好である。 The reversing stopper includes a pair of side wall portions disposed along both side surfaces of the ratchet, and is rotatably supported on the base end side of each side wall portion, while the front end of each side wall portion The first edge portion is defined at the connection portion, and the second edge portion is defined at the other end of each side wall portion, and the lever body In an aspect in which the claw portion can pass between the second edges during the pivoting operation, the reverse stopper is stable in a state of straddling the edge of the base plate or the lever body provided with the ratchet. Therefore, it is possible to operate reliably and to be assembled easily.

さらに、前記反転ストッパの前記連結部に、前記ラチェットが設けられている前記ベースプレートまたは前記レバー本体の縁部に当接し、前記反転ストッパの回動範囲を規制する第３縁部が画成されている態様では、反転ストッパの取付け部位に回動範囲を規制するピンなどを別途設ける必要が無く、ベースプレートやレバー本体の縁部をそのまま利用でき、構造の簡素化と部品点数の削減に寄与できる。 Furthermore, a third edge is formed in the connecting portion of the reversing stopper so as to abut the edge of the base plate or the lever main body on which the ratchet is provided and restrict the rotation range of the reversing stopper. In this embodiment, it is not necessary to separately provide a pin or the like for restricting the rotation range at the mounting portion of the reversing stopper, and the edge of the base plate or lever body can be used as it is, which can contribute to simplification of the structure and reduction in the number of parts.

また、前記反転ストッパが、樹脂成形品で構成されている態様では、爪部材が不作用位置に復帰する際の衝撃が緩和され、一層静粛な復帰動作が可能であるとともに、不作用位置に復帰した爪部材がより安定的に保持され、振動や異音の発生を一層確実に防止でき、かつ製造や組付けに係わるコストを低減するうえでも有利である。 Further, in the aspect in which the reverse stopper is formed of a resin molded product, the impact when the claw member returns to the non-operating position is alleviated, and a more silent return operation is possible and the non-operating position is returned to the non-operating position. Thus, the claw member is more stably held, and it is possible to more reliably prevent the occurrence of vibrations and noises, and it is advantageous in reducing the cost for manufacturing and assembly.

以下、本発明の実施形態について、図面を参照しながら詳細に説明する。本発明に係るパーキングブレーキ装置（初動装置、操作装置）は、足踏み式のフットパーキングブレーキ、手で操作するレバー式のハンドブレーキの両方に実施可能であり、さらに、それぞれの形式において、ラチェットが固定側（車体側）に設けられる場合と、可動側（レバー側）に設けられる場合があり、４つの基本形態が存在する。以下の説明においては、本発明を足踏み式のフットパーキングブレーキとして実施した実施形態について述べる。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The parking brake device (initial device, operation device) according to the present invention can be applied to both a foot-operated foot parking brake and a lever-type hand brake operated by hand, and furthermore, a ratchet is fixed in each type. There are cases where it is provided on the side (vehicle body side) and cases where it is provided on the movable side (lever side), and there are four basic forms. In the following description, an embodiment in which the present invention is implemented as a foot-operated foot parking brake will be described.

図１は、本発明の実施形態に係るパーキングブレーキ装置を示す側面図である。図において、パーキングブレーキ装置１は、車体のダッシュパネル１０に固定されたベースプレート２、このベースプレート２に固定されるかまたは一体に設けたラチェット２１、ベースプレート２に回動可能に支持され、不作用位置からの回動操作によってパーキングブレーキワイヤ１１を引張可能なレバー本体３、このレバー本体３に設けた支持ピン３０に長孔４０を介して回動可能に支持されている爪部材４（ラチェットポール）、この爪部材４を所定の回動方向に付勢するスプリング５、および、ラチェット２１の不作用位置に対応した端部に設けた反転ストッパ６から主に構成されている。 FIG. 1 is a side view showing a parking brake device according to an embodiment of the present invention. In the figure, a parking brake device 1 includes a base plate 2 fixed to a dash panel 10 of a vehicle body, a ratchet 21 fixed to the base plate 2 or provided integrally therewith, and rotatably supported by the base plate 2. Lever body 3 capable of pulling the parking brake wire 11 by a pivoting operation, and a claw member 4 (ratchet pole) that is rotatably supported by a support pin 30 provided on the lever body 3 through a long hole 40 The spring 5 mainly biases the claw member 4 in a predetermined rotation direction, and the reverse stopper 6 provided at the end corresponding to the non-operating position of the ratchet 21.

ベースプレート２は、ラチェット２１を設けたプレート本体部から上方に岐出した脚部２２、下側方（図１における紙面厚さ方向手前側）に岐出した脚部２３、および脚部２３の側面に固着され正面視においてＵ字状に湾曲して反対の側方に岐出した脚部２４を備え、これら３つの脚部２２、２３、２４でダッシュパネル１０に固定されている。脚部２４の水平部２４ａには、パーキングブレーキワイヤ１１のアウターケースが取り付けられ、該アウターケースに挿通されたインナーワイヤは、クレビス１２を介してレバー本体３の腕部３４に連結されている。 The base plate 2 includes a leg portion 22 that extends upward from the plate body portion on which the ratchet 21 is provided, a leg portion 23 that extends downward (front side in the thickness direction in FIG. 1), and a side surface of the leg portion 23. A leg portion 24 that is curved in a U shape in front view and flared to the opposite side is fixed to the dash panel 10 with these three leg portions 22, 23, and 24. An outer case of the parking brake wire 11 is attached to the horizontal portion 24 a of the leg portion 24, and the inner wire inserted through the outer case is connected to the arm portion 34 of the lever main body 3 via the clevis 12.

レバー本体３は、板金を二つ折りに折曲して形成され略三角形状の主部３１、該主部３１の先端に挟持された状態で固着されている腕部３２、該腕部３２の先端に固定されたペダル３３（パッド）から構成されており、主部３１の両側板間にラチェット２１が位置するようにベースプレート２に跨って配置され、ベースプレート２と主部３１の両側板とを貫通する回動軸２０を介してベースプレート２に回動自在に支持されている。 The lever main body 3 is formed by folding a sheet metal into two, a substantially triangular main portion 31, an arm portion 32 fixed in a state of being sandwiched between the distal ends of the main portion 31, and the distal ends of the arm portions 32. The pedal 33 (pad) fixed to the base plate 2 is disposed across the base plate 2 so that the ratchet 21 is positioned between the two side plates of the main portion 31, and penetrates the base plate 2 and the both side plates of the main portion 31. The base plate 2 is rotatably supported via a rotating shaft 20 that rotates.

レバー本体主部３１の腕部３４と反対側の角部には、ベースプレート２の受け部２６に当接する際の衝撃を吸収するためのクッション部材３６が固定されている。クッション部材３６に隣接した一方（図１における紙面厚さ方向手前側）の側板部分には、パーキングブレーキの操作状態を検知するスイッチ２７のための検出部３７が設けられ、その反対側（図１における紙面厚さ方向奥側）の側板部分には、リターンスプリング３５の一端が連結されており、リターンスプリング３５の他端はベースプレート脚部２２の係止部２２ａに係止されている。 A cushion member 36 for absorbing an impact when contacting the receiving portion 26 of the base plate 2 is fixed to a corner portion of the lever main body 31 opposite to the arm portion 34. One side plate portion adjacent to the cushion member 36 (front side in the thickness direction in FIG. 1) is provided with a detection portion 37 for the switch 27 for detecting the operation state of the parking brake, and the opposite side (FIG. 1). One end of the return spring 35 is connected to the side plate portion on the back side in the thickness direction of the paper surface, and the other end of the return spring 35 is locked to the locking portion 22 a of the base plate leg portion 22.

レバー本体主部３１の両側板には段部３１ａが設けられ、該段部３１ａから両側板の折曲部にかけての部分は、その周辺部に比べて両側板の間隔が拡幅され、図３に示すように、爪部材４やスプリング５、および反転ストッパ６を収容可能なケースを構成している。この拡幅部分の両側板（３１）を貫通する支持ピン３０に長孔４０が係合することにより、爪部材４が、長孔４０方向の摺動を許容した状態で回動可能に支持されている。 Steps 31a are provided on both side plates of the lever main body 31, and the space between the step portions 31a and the bent portions of both side plates is wider than the peripheral portion. As shown, a case that can accommodate the claw member 4, the spring 5, and the reverse stopper 6 is configured. By engaging the long holes 40 with the support pins 30 passing through the both side plates (31) of the widened portion, the claw member 4 is supported so as to be rotatable in a state in which sliding in the direction of the long holes 40 is allowed. Yes.

爪部材４は、図２および図３に示すように、金属製の芯体４ａと、該芯体４ａに被着された樹脂製の被覆体４ｂで構成され、全体としては略三角形状をなしている。これら芯体４ａおよび被覆体４ｂを貫通して長孔４０が設けられている。爪部材４の３つの端部のうち、長孔４０の方向の両端部では芯体４ａが露出しており、このうち、図２における上方となる不作用位置側の第１の端部には、ラチェット２１に係合可能な爪部４１が突設され、この爪部４１に隣接した部分から反対側の第２の端部にかけては、長孔４０の方向と略平行な平坦部４２が形成されている。 As shown in FIGS. 2 and 3, the claw member 4 includes a metal core body 4a and a resin cover body 4b attached to the core body 4a, and has a substantially triangular shape as a whole. ing. A long hole 40 is provided through the core body 4a and the covering body 4b. Of the three ends of the claw member 4, the core body 4 a is exposed at both ends in the direction of the long hole 40, and among these, the first end on the inactive position side which is the upper side in FIG. A claw portion 41 that can be engaged with the ratchet 21 is projected, and a flat portion 42 that is substantially parallel to the direction of the long hole 40 is formed from a portion adjacent to the claw portion 41 to a second end portion on the opposite side. Has been.

この平坦部４２の中間部分は、樹脂製の被覆体４ｂによって被覆されるとともに両側方に拡幅され、反転ストッパ６の第２縁部６２に当接する受け部を形成している。また、爪部材４の長孔４０の延在方向に対して側方に位置した第３の端部（４３）は、樹脂製の被覆体４ｂで構成され、この第３の端部をＵ字状に切欠して、スプリング５の一方（中央）の腕部に係合可能な係合部４３が形成されている。なお、長孔４０の爪部４１側の端部４０ａは、反対側の端部４０ｂよりも僅かに拡径されている。 An intermediate portion of the flat portion 42 is covered with a resin cover 4b and widened on both sides to form a receiving portion that comes into contact with the second edge 62 of the reverse stopper 6. Moreover, the 3rd end part (43) located in the side with respect to the extension direction of the long hole 40 of the nail | claw member 4 is comprised by the resin-made covering bodies 4b, and this 3rd end part is U-shaped. An engagement portion 43 that can be engaged with one (center) arm portion of the spring 5 is formed. Note that the end 40a of the long hole 40 on the claw 41 side is slightly larger in diameter than the opposite end 40b.

スプリング５は、図３に示すように、中央と両端にそれぞれ腕部を有するねじりコイルバネ（トーションスプリング）であり、レバー本体３の側板３１、３１に設けた支持孔２５、２５に両端の腕部が回動自在に支持され、中央の腕部が、爪部材４の係合部４３に回動自在に係合しており、爪部材４を、支持ピン３０に対する長孔４０の係合位置（４０ａ、４０ｂ）と係合角度に応じて決定される所定の回動方向に付勢し、爪部４１をラチェット２１に係合または離脱させる。 As shown in FIG. 3, the spring 5 is a torsion coil spring (torsion spring) having arms at the center and both ends, and arm portions at both ends in the support holes 25 and 25 provided in the side plates 31 and 31 of the lever body 3. Is rotatably supported, and the central arm portion is rotatably engaged with the engaging portion 43 of the claw member 4, and the claw member 4 is engaged with the engagement position ( 40a, 40b) and a predetermined rotation direction determined according to the engagement angle, and the claw portion 41 is engaged with or released from the ratchet 21.

反転ストッパ６は、図２および図３に示すように、それぞれ、基端側の回動軸６０を中心とした扇形状の周縁に切欠部６ｃが形成されることで、先端が２つの先端部（６１、６２）に分岐した略Ｖ字状をなし、ラチェット２１の両側面に沿って配設される一対の側壁部６ａ、６ａと、これら側壁部６ａ、６ａを、一方の先端（６１）側の切欠部６ｃに沿った部分で連結する連結部６ｂとを備え、樹脂材料を用いて一体成形されている。 As shown in FIGS. 2 and 3, the reversing stopper 6 is formed with a notch 6 c on the fan-shaped periphery centering on the rotation shaft 60 on the base end side, so that the tip has two tip portions. A pair of side wall portions 6a, 6a that are substantially V-shaped and branched along both side surfaces of the ratchet 21, and these side wall portions 6a, 6a are connected to one end (61). And a connecting portion 6b that is connected at a portion along the cutout portion 6c on the side, and is integrally formed using a resin material.

各側壁部６ａ、６ａの、回動軸６０周囲の内面側には、ボス６０ａ、６０ａが対向して突設されており、これらボス６０ａ、６０ａがベースプレート２に穿設した孔２６に嵌入されることで、反転ストッパ６は、回動軸６０を中心として回動可能に支持されている。また、各側壁部６ａ、６ａの回動軸６０の孔に貫通させてピン（６０）が嵌入されることで、一対の側壁部６ａ、６ａが補強されている。 Bosses 60a and 60a are provided so as to face each other on the inner surface of the side walls 6a and 6a around the rotation shaft 60, and these bosses 60a and 60a are fitted into holes 26 formed in the base plate 2. Thus, the reverse stopper 6 is supported so as to be rotatable about the rotation shaft 60. Further, the pair of side wall portions 6a, 6a is reinforced by inserting the pin (60) through the hole of the rotation shaft 60 of each side wall portion 6a, 6a.

反転ストッパ６の連結部６ｂには、ラチェット２１の不作用位置に復帰した爪部材４の爪部４１（外側縁４１ａ）に当接可能な第１縁部６１が画成されている。この第１縁部６１は、爪部材４の移動方向に対して傾斜した傾斜面をなしている。また、各側壁部６ａ、６ａの先端部には、それぞれ、爪部材４の平坦部４２、４２に当接可能な第２縁部６２、６２が画成されている。第２縁部６２、６２は、ラチェット２１の両側に配設されているので、それらの間を爪部４１が通過可能である。 A first edge portion 61 that can contact the claw portion 41 (outer edge 41 a) of the claw member 4 that has returned to the non-operating position of the ratchet 21 is defined in the connecting portion 6 b of the reversal stopper 6. The first edge 61 forms an inclined surface that is inclined with respect to the moving direction of the claw member 4. In addition, second edge portions 62 and 62 that can come into contact with the flat portions 42 and 42 of the claw member 4 are defined at the tip portions of the side wall portions 6a and 6a, respectively. Since the 2nd edge parts 62 and 62 are arrange | positioned at the both sides of the ratchet 21, the nail | claw part 41 can pass between them.

反転ストッパ６の連結部６ｂの回動軸６０寄りの部分には、ベースプレート２の縁部に沿って第３縁部６３が画成されている。この第３縁部６３は、反転ストッパ６の取付け状態で、前記ベースプレート２の縁部との間に所定の隙間が形成されるように配設され、それにより、反転ストッパ６は、この隙間に対応した角度θの範囲で限定的に回動可能となっている。 A third edge 63 is defined along the edge of the base plate 2 at a portion of the connecting portion 6 b of the reversing stopper 6 near the rotation shaft 60. The third edge 63 is disposed so that a predetermined gap is formed between the third stopper 63 and the edge of the base plate 2 when the reverse stopper 6 is attached. The rotation is limited within the range of the corresponding angle θ.

すなわち、図２に実線で示される回動の下端では、第３縁部６３の下端がベースプレート２の縁部に当接し、第３縁部６３とベースプレート２との間には、上方に向かって僅かに開いた楔状の隙間が画成され、同図に２点鎖線で示される回動の上端では、第３縁部６３の上端がベースプレート２の縁部に当接し、第３縁部６３とベースプレート２との間に、下方に向かって僅かに開いた楔状の隙間が画成されることになる。 That is, at the lower end of the rotation indicated by the solid line in FIG. 2, the lower end of the third edge 63 abuts on the edge of the base plate 2, and the upward direction is between the third edge 63 and the base plate 2. A slightly open wedge-shaped gap is defined, and the upper end of the third edge 63 abuts the edge of the base plate 2 at the upper end of the rotation indicated by a two-dot chain line in FIG. A wedge-shaped gap slightly opened downward is defined between the base plate 2 and the base plate 2.

次に、上記実施形態に基づく作用について、パーキングブレーキ装置１の操作手順に沿って図面と共に説明する。 Next, the operation based on the above embodiment will be described along with the drawings along the operation procedure of the parking brake device 1.

パーキングブレーキ装置１の不作用位置（解除状態）では、図１に示すように、レバー本体３は、リターンスプリング３５によってレバー本体３は図中時計方向に付勢され、クッション部材３６が受け部２６に当接しており、レバー本体３の腕部３４が降下してパーキングブレーキワイヤ１１は弛緩状態にあり、スイッチ２７は検出部３７に当接し、パーキングブレーキ装置１の不作用位置を検出している。 In the inoperative position (released state) of the parking brake device 1, as shown in FIG. 1, the lever body 3 is urged clockwise by the return spring 35 in the drawing, and the cushion member 36 is received by the receiving portion 26. , The arm portion 34 of the lever main body 3 is lowered, the parking brake wire 11 is in a relaxed state, and the switch 27 is in contact with the detecting portion 37 to detect the inoperative position of the parking brake device 1. .

また、爪部材４は、支持ピン３０に対して長孔４０の上端部（４０ａ）で係合しているが、反転ストッパ６で拘持されることで、爪部４１がラチェット２１に近接し、平坦部４２がラチェット２１から離反した回動姿勢にあり、爪部材４の係合部４３は、スプリング５の回動支点（支持孔２５）と支持ピン３０の中心を結ぶ線（図９にｘで示される）の上方にあり、スプリング５の付勢（図９にｙで示される）は、回動姿勢を維持する方向、即ち、爪部４１をラチェット２１側に押し付ける方向に作用している。 Further, the claw member 4 is engaged with the support pin 30 at the upper end portion (40a) of the long hole 40. However, the claw portion 41 is brought close to the ratchet 21 by being held by the reverse stopper 6. The flat portion 42 is in a rotational posture away from the ratchet 21, and the engaging portion 43 of the claw member 4 is a line connecting the rotational fulcrum (support hole 25) of the spring 5 and the center of the support pin 30 (see FIG. 9). The urging force of the spring 5 (indicated by y in FIG. 9) acts in the direction of maintaining the rotating posture, that is, the direction of pressing the claw portion 41 toward the ratchet 21 side. Yes.

このような不作用位置から、パーキングブレーキ装置１のペダル３３を踏み込む操作を行い、レバー本体３を、図４に矢印ａ１で示す方向に回動させると、腕部３４の回動によってパーキングブレーキワイヤ１１が引張されるとともに、支持ピン３０が長孔４０の下端側（４０ｂ、爪部４１と反対側）に移動し、さらに、この支持ピン３０で牽引されて爪部材４がラチェット２１に沿って下方へ移動する。この間、爪部材４の係合部４３は、支持孔２５と支持ピン３０の中心を結ぶ線ｘよりも爪部４１側にあり、スプリング５の付勢ｙは、爪部４１をラチェット２１に押し付ける方向ｃ１に作用しており、爪部４１はラチェット２１に当接した状態で下方へ移動する。 When an operation of depressing the pedal 33 of the parking brake device 1 is performed from such an inoperative position and the lever body 3 is rotated in the direction indicated by the arrow a1 in FIG. 11 is pulled, the support pin 30 moves to the lower end side (40b, opposite to the claw portion 41) of the long hole 40, and is further pulled by the support pin 30 so that the claw member 4 moves along the ratchet 21. Move down. During this time, the engaging portion 43 of the claw member 4 is on the claw portion 41 side with respect to the line x connecting the center of the support hole 25 and the support pin 30, and the urging y of the spring 5 presses the claw portion 41 against the ratchet 21. Acting in the direction c <b> 1, the claw portion 41 moves downward while being in contact with the ratchet 21.

次いで、ペダル３３を踏み込む操作を停止し、該ペダル３３から足を離すと、レバー本体３は、図５に矢印ｂ１で示すように、リターンスプリング３５の付勢力（およびパーキングブレーキワイヤ１１の張力）で不作用位置側に引き戻され、支持ピン３０は長孔４０の上端側（４０ａ、爪部４１側）に移動するが、爪部４１がラチェット２１に係合することにより、レバー本体３がその操作位置でロックされる。 Next, when the operation of depressing the pedal 33 is stopped and the foot is released from the pedal 33, the lever body 3 causes the urging force of the return spring 35 (and the tension of the parking brake wire 11) as shown by an arrow b1 in FIG. Thus, the support pin 30 is moved to the upper end side (40a, claw portion 41 side) of the long hole 40. When the claw portion 41 is engaged with the ratchet 21, the lever main body 3 is Locked in the operating position.

このロック状態では、上記支持ピン３０の移動によって、爪部材４の係合部４３が、支持孔２５と支持ピン３０の中心を結ぶ線ｘ上または該線ｘよりも爪部４１と反対側にあり、スプリング５の付勢ｙが爪部４１をラチェット２１から離反させる方向ｃ２に転換しているが、支持ピン３０を介して爪部材４に作用するリターンスプリング３５の付勢力により爪部４１がラチェット２１に圧接され、爪部４１とラチェット２１との間の摩擦力によって爪部４１の係合状態、即ちロック状態が維持されている。 In this locked state, due to the movement of the support pin 30, the engaging portion 43 of the claw member 4 is on the line x connecting the support hole 25 and the center of the support pin 30 or on the opposite side to the claw portion 41 from the line x. Yes, the urging y of the spring 5 is changed in the direction c <b> 2 for separating the claw portion 41 from the ratchet 21, but the claw portion 41 is moved by the urging force of the return spring 35 acting on the claw member 4 via the support pin 30. The engagement state of the claw portion 41, that is, the locked state is maintained by the frictional force between the claw portion 41 and the ratchet 21 while being pressed against the ratchet 21.

パーキングブレーキ装置１を解除する場合には、図６に示すように、ペダル３３を再度踏み、レバー本体３に矢印ａ２方向への操作力を再度付加すると、爪部４１をラチェット２１に係合させていた摩擦力が減少または消失し、スプリング５の付勢ｙ（ｃ２）によって爪部４１がラチェット２１から離脱し（ｄ１）、レバー本体３のロックが解除され、爪部材４の平坦部４２がラチェット２１に当接した状態で、レバー本体３が不作用位置側に回動可能となる。 When releasing the parking brake device 1, as shown in FIG. 6, when the pedal 33 is stepped on again and the operation force in the direction of the arrow a <b> 2 is applied again to the lever body 3, the claw portion 41 is engaged with the ratchet 21. The frictional force that has been reduced or disappears, and the claw portion 41 is detached from the ratchet 21 by the urging y (c2) of the spring 5 (d1), the lever body 3 is unlocked, and the flat portion 42 of the claw member 4 is released. The lever main body 3 can be rotated to the non-operating position side in a state of being in contact with the ratchet 21.

次いで、レバー本体３が、図７に矢印ｂ２で示すように、リターンスプリング３５の付勢力で不作用位置側に回動し、爪部材４が反転ストッパ６の位置に差し掛かると、平坦部４２が反転ストッパ６の第２縁部６２に当接することでラチェット２１から離反し（ｄ３）、レバー本体３の更なる回動とともに、爪部材４が回動して、図８に矢印ｄ４で示すように平坦部４２がラチェット２１とほぼ平行になり、爪部４１が矢印ｄ５で示すように反転ストッパ６に接近する。 Next, as shown by an arrow b <b> 2 in FIG. 7, when the lever body 3 is rotated to the non-operating position side by the urging force of the return spring 35 and the claw member 4 reaches the position of the reversal stopper 6, the flat portion 42. Is separated from the ratchet 21 by abutting against the second edge 62 of the reversing stopper 6 (d3), and the claw member 4 is rotated as the lever body 3 is further rotated, as indicated by an arrow d4 in FIG. Thus, the flat part 42 becomes substantially parallel to the ratchet 21, and the claw part 41 approaches the reversing stopper 6 as shown by an arrow d5.

そして、図９に示すように、レバー本体３が不作用位置に復帰し、爪部４１の外側縁（図２に４１ａで示す）が反転ストッパ６の第１縁部６１に当接すると、爪部４１の外側縁４１ａが傾斜した第１縁部６１で案内されることにより、反転ストッパ６側に引き寄せられ、さらに、反転ストッパ６の第１縁部６１が爪部４１の外側縁４１ａで押圧されることにより、該反転ストッパ６が矢印ｅ方向に角度θの分だけ限定的に回動し、爪部材４の平坦部４２が、反転ストッパ６の第２縁部６２で押し上げられると同時に、爪部材４の爪部４１が、反転ストッパ６の第１縁部６１で押し下げられることで、爪部材４が矢印ｄ６で示される方向に回動し、この回動により、スプリング５との係合部４３が、支持孔２５と支持ピン３０の中心を結ぶ線ｘよりも爪部４１側に移動し、爪部材４に対するスプリング５の付勢方向ｙが、爪部４１をラチェット２１に係合させる方向ｃ６に反転する。 Then, as shown in FIG. 9, when the lever main body 3 returns to the non-operating position and the outer edge of the claw portion 41 (indicated by 41 a in FIG. 2) contacts the first edge portion 61 of the reversal stopper 6, The outer edge 41 a of the portion 41 is guided by the inclined first edge 61, thereby being drawn toward the reverse stopper 6, and further, the first edge 61 of the reverse stopper 6 is pressed by the outer edge 41 a of the claw portion 41. As a result, the reversing stopper 6 is limitedly rotated in the direction of the arrow e by the angle θ, and the flat portion 42 of the claw member 4 is pushed up by the second edge 62 of the reversing stopper 6. When the claw portion 41 of the claw member 4 is pushed down by the first edge 61 of the reversal stopper 6, the claw member 4 rotates in the direction indicated by the arrow d 6, and this rotation engages with the spring 5. The line 43 connecting the support hole 25 and the center of the support pin 30 with the portion 43 Go to Rimotsume portion 41 side, the biasing direction y of the spring 5 against the claw member 4 is inverted in the direction c6 to engage the claw portion 41 to the ratchet 21.

反転ストッパ６の回動半径は、レバー本体３の回動半径に比べて充分に小さいので、レバー本体３による爪部材４の僅かな移動により、相対的に大きな回動角度を得ることができ、レバー本体３の復帰動作の最終段階で、スプリング５の付勢方向ｙを確実に反転させることができる。また、反転ストッパが固定されている場合に比べて、第１縁部６１および第２縁部６２と爪部材４との摺接が少なくて済み、反転動作が円滑である。 Since the turning radius of the reversing stopper 6 is sufficiently smaller than the turning radius of the lever body 3, a relatively large turning angle can be obtained by a slight movement of the claw member 4 by the lever body 3. At the final stage of the return operation of the lever body 3, the biasing direction y of the spring 5 can be reliably reversed. Further, as compared with the case where the reversing stopper is fixed, the sliding contact between the first edge portion 61 and the second edge portion 62 and the claw member 4 is small, and the reversing operation is smooth.

さらに、上記のように不作用位置に復帰した状態では、爪部材４の爪部４１（外側縁４１ａ）および平坦部４２が、反転ストッパ６の第１縁部６１および第２縁部６２に当接し、支持ピン３０と長孔４０との係合を加えた３点で拘束され、かつ反転されたスプリング５により爪部材４が係合方向ｃ６に付勢されているので、爪部材４が反転状態で安定的に保持され、爪部材４の振動や異音の発生が防止されるとともに、次のブレーキ操作時にペダル３３を踏み込めば、反転済みのスプリング５によって爪部４１がラチェット２１に直ちに係合し、円滑かつ確実なブレーキ操作が可能となる。 Further, in the state of returning to the non-operating position as described above, the claw portion 41 (outer edge 41a) and the flat portion 42 of the claw member 4 contact the first edge portion 61 and the second edge portion 62 of the reversal stopper 6. Since the claw member 4 is urged in the engagement direction c6 by the spring 5 which is in contact and restrained at the three points where the support pin 30 and the long hole 40 are engaged and is reversed, the claw member 4 is reversed. When the pedal 33 is depressed during the next braking operation, the claw portion 41 is immediately engaged with the ratchet 21 by the inverted spring 5. As a result, smooth and reliable brake operation is possible.

特に、反転ストッパ６および爪部材４の平坦部４２が樹脂材で構成されているので、爪部材４が不作用位置に復帰して反転ストッパ６に当接する際の衝撃が緩和され、静粛な復帰動作が可能であるとともに、不作用位置への復帰途中でペダル３３を踏み込めば、平坦部４２の段部がラチェット２１に一時的に係止されることで、支持ピン３０が長孔４０の下端側（４０ｂ）に移動し、スプリング５の付勢方向が、爪部４１をラチェット２１に係合させる方向に反転し、再度、ロック状態とすることができる。 In particular, since the reverse stopper 6 and the flat portion 42 of the claw member 4 are made of a resin material, the impact when the claw member 4 returns to the non-operating position and abuts against the reverse stopper 6 is alleviated, and the return is quiet. If the pedal 33 is depressed in the middle of returning to the non-operating position while being operable, the stepped portion of the flat portion 42 is temporarily locked to the ratchet 21, so that the support pin 30 is at the lower end of the long hole 40. It moves to the side (40b), the urging | biasing direction of the spring 5 reverses in the direction which engages the nail | claw part 41 with the ratchet 21, and can be made into a locked state again.

上記反転ストッパ６は、パーキングブレーキ装置１の不作用位置（解除状態）では、爪部材４と当接することによって回動範囲（θ）の上端側（不作用位置側）に回動し、パーキングブレーキ装置１の操作時に爪部材４が下方へ移動するのに伴い回動範囲（θ）の下端側（操作位置側）に回動し、以後、解除操作を行いレバー本体３とともに爪部材４が復帰してくるまで、自重で下端側位置に留まっている。 When the parking brake device 1 is in the inoperative position (released state), the reversing stopper 6 is rotated to the upper end side (inactive position side) of the rotation range (θ) by coming into contact with the claw member 4 and the parking brake. As the claw member 4 moves downward during the operation of the device 1, the claw member 4 is rotated to the lower end side (operation position side) of the rotation range (θ). Until it comes down, it stays in the lower end position under its own weight.

また、反転ストッパ６を操作位置側（図示例では下端側）に付勢する付勢手段を設け、パーキングブレーキ装置１の操作時に反転ストッパ６を強制的に操作位置側に位置させ、不作用位置への復帰時には上記付勢手段の付勢力に抗して復帰動作が行われるように構成することもできる。このような付勢手段としては、例えば、反転ストッパ６の第３縁部６３の弾性変形を利用する形態があり、その場合、第３縁部６３の両側に切り込みを入れる等により、第３縁部６３を板バネとして形成しても良い。また、反転ストッパ６とベースプレート２の間に、スプリングなどの弾性部材を介在させても良く、スプリングは回動軸６０回りに設けたスパイラルスプリング等であっても良い。 Further, an urging means for urging the reverse stopper 6 to the operation position side (lower end side in the illustrated example) is provided, and when the parking brake device 1 is operated, the reverse stopper 6 is forcibly positioned to the operation position side, and the non-operating position. It is also possible to configure so that the return operation is performed against the urging force of the urging means when returning to the normal state. As such an urging means, for example, there is a form in which elastic deformation of the third edge 63 of the reversing stopper 6 is used. In this case, the third edge is formed by making cuts on both sides of the third edge 63. The part 63 may be formed as a leaf spring. Further, an elastic member such as a spring may be interposed between the reverse stopper 6 and the base plate 2, and the spring may be a spiral spring provided around the rotation shaft 60.

さらに、反転ストッパ６を回動範囲（θ）の下端側（操作位置側）で係止可能な係止手段を設け、パーキングブレーキ装置１の操作時に反転ストッパ６を操作位置側に保持するように構成することもできる。このような係止手段としては、例えば、反転ストッパ６に設けた凹部にスプリングで付勢されたボールを係合させるボールプランジャなど、公知のクリック手段を用いることができる。 Further, a locking means that can lock the reverse stopper 6 on the lower end side (operation position side) of the rotation range (θ) is provided, and the reverse stopper 6 is held on the operation position side when the parking brake device 1 is operated. It can also be configured. As such a locking means, for example, a known click means such as a ball plunger for engaging a ball urged by a spring in a recess provided in the reversing stopper 6 can be used.

なお、上記実施形態においては、ベースプレート２にラチェット２１および反転ストッパ６を設け、レバー本体３に支持ピン３０、爪部材４、およびスプリング５を設ける場合を示したが、これとは反対に、ベースプレート２に支持ピン、爪部材、およびスプリングを設け、レバー本体３にラチェットおよび反転ストッパを設けることもできる。 In the above embodiment, the case where the ratchet 21 and the reverse stopper 6 are provided on the base plate 2 and the support pin 30, the claw member 4 and the spring 5 are provided on the lever main body 3 is shown. 2 can be provided with a support pin, a claw member, and a spring, and the lever main body 3 can be provided with a ratchet and a reverse stopper.

また、上記実施形態では、足踏み式のパーキングブレーキ装置（フットパーキングブレーキ）について述べたが、ペダル３３の代わりに把持部（グリップ）を設け、手で再度引く操作により解除可能なレバー式のパーキングブレーキ装置（ハンドブレーキ）として実施することもできる。その場合、従来のハンドブレーキのように解除ボタン（プッシュロッド）を備える必要がないので、レバー部分を曲線形状に構成でき、多様なレイアウトに対応できる利点がある。 In the above-described embodiment, the foot-operated parking brake device (foot parking brake) has been described. However, a lever-type parking brake that can be released by an operation of providing a grip (grip) instead of the pedal 33 and pulling it again by hand. It can also be implemented as a device (handbrake). In this case, there is no need to provide a release button (push rod) as in the case of a conventional handbrake, so that the lever portion can be configured in a curved shape, and there is an advantage that various layouts can be handled.

以上、本発明の実施形態について述べたが、本発明は上記実施形態に限定されるものではなく、本発明の技術的思想に基づいてさらに各種の変形および変更が可能であることを付言する。 As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It adds that various deformation | transformation and a change are further possible based on the technical idea of this invention.

本発明の実施形態に係るパーキングブレーキ装置を示す側面図である。It is a side view showing a parking brake device concerning an embodiment of the present invention. 本発明の実施形態に係る爪部材と反転ストッパを示す側面図である。It is a side view which shows the nail | claw member and inversion stopper which concern on embodiment of this invention. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 本発明の実施形態に係るパーキングブレーキ装置の操作状態を示す要部側面図である。It is a principal part side view which shows the operation state of the parking brake apparatus which concerns on embodiment of this invention. 本発明の実施形態に係るパーキングブレーキ装置のロック状態を示す要部側面図である。It is a principal part side view which shows the locked state of the parking brake apparatus which concerns on embodiment of this invention. 本発明の実施形態に係るパーキングブレーキ装置のロック解除操作を示す要部側面図である。It is a principal part side view which shows lock release operation of the parking brake apparatus which concerns on embodiment of this invention. 本発明の実施形態に係るパーキングブレーキ装置の復帰動作を示す要部側面図である。It is a principal part side view which shows the reset operation | movement of the parking brake apparatus which concerns on embodiment of this invention. 本発明の実施形態に係るパーキングブレーキ装置の復帰動作を示す要部側面図である。It is a principal part side view which shows the reset operation | movement of the parking brake apparatus which concerns on embodiment of this invention. 本発明の実施形態に係るパーキングブレーキ装置の復帰動作を示す要部側面図である。It is a principal part side view which shows the reset operation | movement of the parking brake apparatus which concerns on embodiment of this invention.

Explanation of symbols

１パーキングブレーキ装置
２ベースプレート
３レバー本体
４爪部材（ラチェットポール）
５スプリング
６反転ストッパ
１０ダッシュパネル
１１パーキングブレーキワイヤ
２０、６０回動軸
２１ラチェット
２５支持孔
３０支持ピン
３５リターンスプリング
４０長孔
４１爪部
４２平坦部
４３係合部
６１第１縁部
６２第２縁部
６３第３縁部 1 Parking brake device 2 Base plate 3 Lever body 4 Claw member (Ratchet pole)
5 Spring 6 Reverse Stopper 10 Dash Panel 11 Parking Brake Wire 20, 60 Rotating Shaft 21 Ratchet 25 Support Hole 30 Support Pin 35 Return Spring 40 Long Hole 41 Claw Part 42 Flat Part 43 Engagement Part 61 First Edge 62 Second Edge 63 Third edge

Claims

A base plate fixed to the vehicle body side,
A lever body supported rotatably on the base plate and capable of pulling a parking brake wire by a rotation operation from an inoperative position;
A ratchet provided on either the base plate or the lever body;
By engaging a long hole with a support pin provided on the other of the base plate or the lever body, the long hole is supported so as to be rotatable in a state in which sliding in the long hole direction is permitted, and the inactive in the long hole direction. A claw member that has a claw portion that can be engaged with the ratchet at the end on the position side, and a flat portion that is substantially parallel to the long hole direction is formed adjacent to the claw portion;
And other side of the base plate or the lever body, and interposed between the long hole side of the engagement portion of the pawl member, the pawl member, the engagement position and angle of the slot relative to the support pin An urging member that urges the claw portion to engage or disengage from the ratchet by urging in a corresponding rotation direction;
When the lever body is rotated, the support pin is positioned on the opposite side of the elongated hole from the claw portion, and the claw portion is engaged with the ratchet by the urging force of the urging member, and the lever When the rotation operation of the main body is stopped, the lever main body is locked in a state where the support pin is moved to the claw portion side of the elongated hole, and an operation force is again applied to the lever main body from this locked state. In the parking brake device in which the claw portion is detached from the ratchet and the lever body is unlocked,
A first edge that can contact the outer edge of the claw member of the claw member and a second edge that can contact the flat part of the claw member at the end of the ratchet corresponding to the inoperative position. The reversing stopper provided is rotatably provided within a predetermined angle range, the reversing stopper is rotated by the operation of returning the lever main body to the non-operating position, and the flat portion is the second portion. At the same time that the claw portion is pushed down by the first edge portion, the urging direction of the urging member with respect to the claw member is reversed to the direction in which the claw portion is engaged with the ratchet. A parking brake device characterized in that the parking brake device is configured.

The reversing stopper includes a pair of side wall portions arranged along both side surfaces of the ratchet, and is supported rotatably at the base end side of each side wall portion, while one end of each side wall portion is The first edge portion is defined at the connection portion, and the second edge portion is defined at the other end of each side wall portion. 2. The parking brake device according to claim 1, wherein the claw portion can pass between the second edges during a moving operation.

The connecting portion of the reversing stopper has a third edge that abuts the edge of the base plate or the lever body on which the ratchet is provided and restricts the rotation range of the reversing stopper. The parking brake device according to claim 2.

The parking brake device according to claim 1, wherein the reverse stopper is formed of a resin molded product.