JPS60184729A - Parking brake in utilization of hydraulic brake - Google Patents
Parking brake in utilization of hydraulic brakeInfo
- Publication number
- JPS60184729A JPS60184729A JP59040061A JP4006184A JPS60184729A JP S60184729 A JPS60184729 A JP S60184729A JP 59040061 A JP59040061 A JP 59040061A JP 4006184 A JP4006184 A JP 4006184A JP S60184729 A JPS60184729 A JP S60184729A
- Authority
- JP
- Japan
- Prior art keywords
- brake
- pressing plate
- piston
- parking
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
- F16D2125/36—Helical cams, Ball-rotating ramps
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は例えばトラクタ、コンバインの如キ走行車両
に用いている油圧作動式ブレーキを利用した駐車ブレー
キに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a parking brake using a hydraulically operated brake used in a moving vehicle such as a tractor or combine harvester.
従来、駐車ブレーキとして、油圧作動式ブレーキとは全
く別系統のものを設けたもの、或いは、油圧作動式ブレ
ーキの摩擦板を油圧にて押動するピストンを、カム機構
によって押動する構造のものが知ら几ている。Conventionally, parking brakes have a system that is completely different from the hydraulically operated brake, or those that use a cam mechanism to push the piston that uses hydraulic pressure to push the friction plate of the hydraulically operated brake. I don't know.
しかし、前者では、別系統の駐車ブレーキを設備するの
で、かなり広い設備場所を必要とするうえ、設備コスト
も高価となり、又、後者では、密封状のシリンダ内のピ
ストンを押動するためのカム機構は、機構及び、油封構
造において極めて複雑なものとなり、結局、設備コスト
も高価である。However, in the former case, a separate parking brake system is required, which requires a considerably large space and is expensive, and in the latter case, a cam is required to push the piston inside the sealed cylinder. The mechanism is extremely complicated in terms of mechanism and oil seal structure, and as a result, the equipment cost is also high.
そこでこの発明ではシリンダとピストンの油封を複雑化
しないで摩擦板を押動合接するようにしたものであって
、このため、次の技術的手段を講じた。Therefore, in this invention, the friction plate is pressed and joined without complicating the oil seal between the cylinder and the piston, and for this purpose, the following technical measures have been taken.
即ち、ホイルシャツ）Ｑｌに連動するように設けた摩擦
板（８）と静止側の摩擦板（９）を、油圧によって押動
さｎるピストン（ＩＩによって合接結合するようにした
油圧作動式ブレーキにおいて、上記双方の摩擦板（８）
（９）の広本外側方にてピストンｏ！９のＳｂ内側方に
設けた圧力板αυを、パーキング操作部材にて作動さ几
て上記摩擦板（８）（９）へ圧接せしめて上記圧接結合
動作が行わｎるようにしたカム機構例を設けている油圧
作動式ブレーキを利用した駐車ブレーキの構成である。That is, a hydraulically actuated type in which a friction plate (8) provided to interlock with the foil shirt (Ql) and a friction plate (9) on the stationary side are joined and connected by a piston (II) pushed by hydraulic pressure. In the brake, both of the above friction plates (8)
(9) Piston o on the outside of the book! An example of a cam mechanism in which a pressure plate αυ provided on the inside of Sb of No. 9 is actuated by a parking operating member to press against the friction plates (8) and (9) to perform the press-connecting operation. This is a parking brake configuration that utilizes the hydraulically operated brake provided.
そしてこのように構成したので、この発明は、次の技術
的効果を得ることができた。With this configuration, the present invention was able to obtain the following technical effects.
即ち、摩擦板（８）（９）の友ミ外側方にてピストンα
９の窩肴−内側方に設けた圧力板０υが、カム機構−に
よって摩擦板（８）（９）全圧接、結合するように構成
しているので、この圧力板ａＤは、ピストンａ！９の油
封構造に関係無く設けることができて、この圧力板αυ
の設備に対する油封構造が不要であるため、駐車ブレー
キとしての構造は、極めて簡易なもので足りることにな
った。That is, the piston α is
Since the pressure plate 0υ provided on the inner side of the socket 9 is constructed so that the friction plates (8) and (9) are fully pressed and connected by a cam mechanism, this pressure plate aD is connected to the piston a! This pressure plate αυ can be installed regardless of the oil seal structure of 9.
Since there is no need for an oil seal structure for the equipment, an extremely simple structure is sufficient for the parking brake.
又、圧力板αυは、摩擦板（８＞（９）の＆Ｓ外側方に
設けているので車体に組込む作業及び、点検等の作業を
、車体外側方から手元広く容易に行うことができるもの
である。In addition, since the pressure plate αυ is provided on the outside of the friction plate (8>(9) &S), work such as assembly into the car body and inspection can be easily carried out from the outside of the car body with a wide hand. be.
次にこの発明の１実施例を図にもとづいで説明する。Next, one embodiment of the present invention will be described based on the drawings.
第１図に後車輪デフ機構（］）と左側の油圧作動式ブレ
ーキ（２）の横断平面視を示したが、この例示している
油圧作動式ブレーキ（２）は、後車輪デフ機構（１）の
出力側であるデフサイドギヤ（３）によって駆動さｎる
ホイルビニオン軸（４）の外側部の歯状溝部（４ａ）を
、ミッションケース（５）の後部に取付けているリヤア
クスルハウジング（６）のブレーキケース（７）内にの
ぞかせ、摩擦板（ｓ）（８）・・・の歯状溝部（８ａ）
を、上記歯状溝部（４０へ、摩擦板（８）が軸長方向移
動のみ自在であるように係合し、上記摩擦板（８）を左
右から挾むように位置させた静止側の摩擦板（９）（９
）・・・の係合溝（９ａ）ｔ−、ブレーキケース（７）
に軸支しているトルクビンｄｌｌＩの係合部（］Ｏａ）
へ、摩擦板（９）（９）・・・が軸長方向移動のみ自在
であるように係合し、摩擦板（８）（９）の広簿外側方
に位置せしめた圧力板αβを、ブレーキケース（７）内
に内装してトルクビン凹に形成している係合アーム（ｉ
ｏｂ）”、、圧力板（ｌυの軸長方向移動が可能である
ように、圧力板（ｌυの係合溝（ｈａ）２係合し、ブレ
ーキケース（７）の方沿外側に開口した外側開口部（７
ａ）を塞ぐようにこのブレーキケース（７）へボルトａ
’ａ（Ｌｓ・・・にて取付けている外側蓋（１３に、シ
リンダＱ４を凹設して、シリンダＱ４に一合したビス、
トン０９を、圧力板αυの１外側方に位置せしめ、ブレ
ーキペダルａＱの踏込操作によってマスクシリンダ＋１
７）の圧力油がシリンダＩ内のピストンαＳに供給さ肚
、ピストン（１つが第１図の右方に移動して圧力板０」
）を押動し、こｆＬＫよって摩擦板（８）（８）・・・
と（９）（９）・・・が互に圧接、結合さｎて静止側の
摩擦板（９）（９）・・・によって摩擦板（ｌ（）（８
）・・・とホイルビニオン軸（４）にブレーキが作用す
ることになり、ブレーキピニオン軸（４）へ、ギヤ列α
均を介して連動さ几ているホイルシャフトｆ１９１ｃブ
レーキが作用する構造でβす、ブレーキケース（７）の
内側開口部（７ｂ）を堝ぐべく、ボイルビニオン軸（４
）の軸受体を兼ねた内側蓋（１）をボルト＋２１１１２
１１・・・にてブレーキケース（７）に取付けている。Fig. 1 shows a cross-sectional plan view of the rear wheel differential mechanism (]) and the left hydraulically operated brake (2). ) of the rear axle housing (6) attached to the rear of the transmission case (5). Peeking into the brake case (7), tooth-shaped grooves (8a) of the friction plate (s) (8)...
is engaged with the toothed groove portion (40) so that the friction plate (8) can move only in the axial direction, and the stationary side friction plate (8) is positioned so as to sandwich the friction plate (8) from the left and right sides. 9) (9)
)... engagement groove (9a) t-, brake case (7)
The engaging part (]Oa) of the torque bin dllI that is pivotally supported on the
A pressure plate αβ is engaged with the friction plates (9), (9), etc. so as to be able to move only in the axial direction, and is positioned on the outer side of the friction plates (8), (9). An engagement arm (i
ob)",, so that the pressure plate (lυ) can move in the axial direction, the engagement groove (ha) 2 of the pressure plate (lυ) engages with the outer side opening outward in the direction of the brake case (7). Opening (7
a) to this brake case (7) so as to cover it.
'a (Outer lid attached at Ls...) Cylinder Q4 is recessed in 13, and the screw that fits into cylinder Q4,
ton 09 is positioned one step outside of the pressure plate αυ, and the mask cylinder +1 is pressed by depressing the brake pedal aQ.
7) Pressure oil is supplied to the piston αS in the cylinder I, and one of the pistons moves to the right in Figure 1 and the pressure plate 0.
), and the friction plates (8) (8)...
and (9) (9)... are pressed together and connected to each other, and the friction plates (l()(8)
)..., the brake acts on the wheel pinion shaft (4), and the gear train α is applied to the brake pinion shaft (4).
The wheel shaft (F191c) is interlocked with the wheel shaft (F191C) and is connected to the wheel shaft (F191C).
) bolt +21112 to the inner cover (1) which also serves as the bearing body.
It is attached to the brake case (7) at 11....
ブレーキケース（７）から車体外側方へ突出しているト
ルクピンＩＩｕの部分に、ブレーキアーム１２２１を固
設し、この走行車両の運転席の附近に設けているレバー
の如きパーキング操作部材（図示は省略している）をブ
レーキ使用位置に操作すると、このパーキング操作部材
に連動して動作するロッド−）によってブレーキアーム
州が、トルクビン霞全回動するので、カム機構例が動作
をして圧力板０１）が第１図の右方に押動さｎ１前述し
たピストンＱ９による圧力板αυの右方への押動の場合
と同様に、圧力板αυによる摩擦板（８）（９）の圧接
、結合動作が行わｎ、ホイルビニオン軸（４）にブレー
キが作用するように構成している。A brake arm 1221 is fixed to the portion of the torque pin IIu that protrudes from the brake case (7) toward the outside of the vehicle body, and a parking operating member (not shown) such as a lever provided near the driver's seat of the vehicle is attached. When the brake arm (01) is operated to the brake use position, the brake arm is fully rotated by the rod (01) which operates in conjunction with this parking operating member, so the cam mechanism operates and the pressure plate 01) is operated. is pushed to the right in Fig. 1.Similar to the above-mentioned pushing of the pressure plate αυ to the right by the piston Q9, the pressure plate αυ presses and connects the friction plates (8) and (9). is carried out, and the brake is applied to the wheel pinion shaft (4).
そして例示したカム機構−は、第１図のＡ−Ａ線矢視を
示した第２図及び、第２図のＢ−Ｂ線断面を示した第３
図のように、ブレーキケース（７）に係止したボール■
と、圧力板αＤの円周方向に傾斜している傾斜溝例とト
ルクピンＵ〔の回動動作に伴って圧力板０υを回動する
ように互に係合しているトルクビンｔｌ（ｌの係合アー
ム（ｔｏｂ）と圧力板Ｑυの係合溝（ｌｌａ）とからな
るものであって、トルクビン曲が回動するとき、圧力板
（１１１も、ブレーキケース（７）の内周壁（７ｃ）に
案内さｎて回動し、ボールｍが傾斜溝−の最も深い深溝
底（２６ａ）から浅溝底（２６ｂ）に転勤移動すること
になって、このため、ボール例によって圧力板α１）が
第１図の右方に押動さｎることになり、逆に浅溝底（２
６ｂ）にボール嘆）が位置しているブレーキ使用位置か
らパーキング操作部材をゆるめ位置に戻し繰作をすると
、ボール例は浅溝底（２３ｂ）から深溝底（２６０に向
って転動して圧力板Ｑυの上記押動動作が解除されるよ
うに構成している。The illustrated cam mechanism is shown in FIG. 2, which shows the view along the line A-A in FIG.
As shown in the diagram, the ball secured to the brake case (7) ■
and the torque pin tl (the engagement of the It consists of a coupling arm (tob) and an engagement groove (lla) of the pressure plate Qυ, and when the torque bin turns, the pressure plate (111) also contacts the inner circumferential wall (7c) of the brake case (7). As a result, the ball m is transferred from the deepest deep groove bottom (26a) of the inclined groove to the shallow groove bottom (26b), and therefore, according to the ball example, the pressure plate α1) It will be pushed to the right in Figure 1, and conversely the bottom of the shallow groove (2
When the parking operating member is returned to the loosened position from the brake use position where the ball is located at 6b) and repeated, the ball rolls from the shallow groove bottom (23b) to the deep groove bottom (260) and releases pressure. The configuration is such that the above-mentioned pushing motion of the plate Qυ is released.
カム機構（至）→は、図示例の如きボール紡１と傾斜溝
閾５；の係合動作による他、圧力板αυを押動動作させ
る他の種々のものを使用できるものであり、又、ピスト
ン（１つは、上述のように圧力板θυを介して摩擦板（
８）（９） ’ｉ圧接結合する構造の他、図示は省略し
たが、ピストンと】体の棒部（圧力板に設けた孔を遊挿
する）の内側端に押板分設けて、この押板によって摩擦
板（８）（９）を直接に（圧力板を介さずに）押圧する
構造であっても良い。The cam mechanism (toward) → can be configured by an engagement operation between the ball spindle 1 and the inclined groove threshold 5 as shown in the example shown in the figure, and can also use various other mechanisms for pushing the pressure plate αυ. The piston (one is the friction plate (
8) (9) 'i In addition to the pressure-welding structure, although not shown in the drawings, a push plate is provided at the inner end of the rod part of the piston body (loosely inserted into the hole provided in the pressure plate). The structure may be such that the friction plates (8) and (9) are directly pressed by the pressing plate (without using the pressure plate).
又、外側蓋α３をブレーキケース（７）から取外セハ、
外側開口部（７ａ）を用いてピストン０！９を容易に抜
キ取ることができる。Also, remove the outer cover α3 from the brake case (7).
Piston 0!9 can be easily removed using the outer opening (7a).
第１図において、ミッションケース（５）の前部（同図
の上方）に設けであるミッション機構によってドライブ
ピニオン細割が駆動さ扛、左右のホイルビニオンシャ７
ト（４）（４）は、デフクラッチ装置鄭」によって１
体に結合することもできるようにしている。In Fig. 1, the drive pinion is driven by the mission mechanism provided in the front part of the mission case (5) (upper part of the figure), and the left and right wheel pinion shafts 7 are driven.
(4) (4) is 1 by the differential clutch device Zheng.
It also allows it to be attached to the body.
図はこの発明の１実施例を示し、第１図は油圧作動式ブ
レーキ装置の横断平面図、第２図は第１図のＡ−Ａ線矢
視図、第３図は第２図のＢ−Ｂ線断面図である。
符号説明
（２）・・・・・・油圧作動式ブレーキ（８）（９）・
・・・・・摩擦板 αυ・・・・−・圧力板αＳ ＝−
−−−ピストン ａト・曲・ボイルシャ７）Ｙ、、、４
．、ニーニーＪThe drawings show one embodiment of the present invention, in which Fig. 1 is a cross-sectional plan view of a hydraulically operated brake device, Fig. 2 is a view taken along line A-A in Fig. 1, and Fig. 3 is a B-B in Fig. -B sectional view. Code explanation (2)...Hydraulic actuated brake (8) (9)・
...Friction plate αυ...- Pressure plate αS =-
--- Piston a, song, boiler 7) Y,,,4
．． , Ninny J
Claims (1)
の摩擦板を、油圧によって押動さｎるピーストンによっ
て圧接結合するようにした油圧作動式ブレーキにおいて
、上記双方の摩擦板の元在外側方にてピストンの万石内
側方に設けた圧力板を、パーキング操作部材にて作動さ
ｎて上記摩擦板へ圧接せしめて上記圧接結合動作が行わ
扛るようにしたカム機構を設けてなる油圧作動式ブレー
キを利用した駐車ブレーキ。In a hydraulically operated brake in which a friction plate provided to interlock with a wheel shaft and a friction plate on a stationary side are pressure-welded together by a piece stone pushed by hydraulic pressure, both friction plates are originally located on the outer side. A hydraulic actuator is provided with a cam mechanism that causes a pressure plate provided on the inside of the piston to be pressed against the friction plate by actuation by a parking operating member to perform the pressure connection operation. Parking brake using a type brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59040061A JPS60184729A (en) | 1984-03-02 | 1984-03-02 | Parking brake in utilization of hydraulic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59040061A JPS60184729A (en) | 1984-03-02 | 1984-03-02 | Parking brake in utilization of hydraulic brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60184729A true JPS60184729A (en) | 1985-09-20 |
Family
ID=12570405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59040061A Pending JPS60184729A (en) | 1984-03-02 | 1984-03-02 | Parking brake in utilization of hydraulic brake |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60184729A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS649870U (en) * | 1987-07-07 | 1989-01-19 | ||
| US4883137A (en) * | 1986-08-27 | 1989-11-28 | Deere & Company | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle |
| US5022477A (en) * | 1986-08-27 | 1991-06-11 | Deere & Company | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle |
| US5048638A (en) * | 1988-09-17 | 1991-09-17 | Deere & Company | System for controlling the ground speed and direction of travel of an off-road vehicle |
| JP2017061953A (en) * | 2015-09-24 | 2017-03-30 | 日立建機株式会社 | Wheel type construction machine |
-
1984
- 1984-03-02 JP JP59040061A patent/JPS60184729A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883137A (en) * | 1986-08-27 | 1989-11-28 | Deere & Company | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle |
| US5022477A (en) * | 1986-08-27 | 1991-06-11 | Deere & Company | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle |
| JPS649870U (en) * | 1987-07-07 | 1989-01-19 | ||
| US5048638A (en) * | 1988-09-17 | 1991-09-17 | Deere & Company | System for controlling the ground speed and direction of travel of an off-road vehicle |
| JP2017061953A (en) * | 2015-09-24 | 2017-03-30 | 日立建機株式会社 | Wheel type construction machine |
| WO2017051549A1 (en) * | 2015-09-24 | 2017-03-30 | 日立建機株式会社 | Wheel type construction machine |
| CN108138881A (en) * | 2015-09-24 | 2018-06-08 | 日立建机株式会社 | Industrial wheeled equipment |
| CN108138881B (en) * | 2015-09-24 | 2019-08-20 | 日立建机株式会社 | Industrial wheeled equipment |
| US10495164B2 (en) | 2015-09-24 | 2019-12-03 | Hitachi Construction Machinery Co., Ltd. | Wheel type construction machine |
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