JPH03172675A - Shift lever buffering device for engaging clutch for microshovel car - Google Patents

Shift lever buffering device for engaging clutch for microshovel car

Info

Publication number
JPH03172675A
JPH03172675A JP1311614A JP31161489A JPH03172675A JP H03172675 A JPH03172675 A JP H03172675A JP 1311614 A JP1311614 A JP 1311614A JP 31161489 A JP31161489 A JP 31161489A JP H03172675 A JPH03172675 A JP H03172675A
Authority
JP
Japan
Prior art keywords
shifter
shift lever
arm
stoppers
rod
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
Application number
JP1311614A
Other languages
Japanese (ja)
Inventor
Yoshiaki Murakami
良昭 村上
Naohisa Murakami
尚久 村上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iseki and Co Ltd
Kobe Steel Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Kobe Steel Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Iseki and Co Ltd, Kobe Steel Ltd, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP1311614A priority Critical patent/JPH03172675A/en
Priority to US07/587,865 priority patent/US5086896A/en
Priority to EP19900119028 priority patent/EP0429801A3/en
Priority to KR1019900017556A priority patent/KR930011564B1/en
Publication of JPH03172675A publication Critical patent/JPH03172675A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To reduce transmission of a shock during engagement of an engaging clutch by a method wherein stoppers are secured with a distance therebetween in the axial direction of a shifter rod, a lock ring is slidably loosely engaged between the stoppers with a spring located therebetween, and the tip part of a shifter arm is pivotally mounted to the lock ring. CONSTITUTION:A shifter arm 50 is protruded in two directions from the upper surface of a mission case 5, and a tip part 50b of the shifter arm is pivotally mounted to the lower part of the lock ring 51 loosely engaged with the rear end part of the shifter rod 28. Stoppers 52 and 53 are secured to the rear end part of the shifter rod 28 with a given distance therebetween in an axial direction. The lock ring 51 is nipped between the stoppers 52 and 53 through the medium of springs 54 and 55, and the front end part of the shifter rod 28 is pivotally mounted to the lower end part of a shift lever arm 27 through a joint 56. When, during shift, the rod 28 is pulled through rotation of the arm 27, the lock ring 51 is locked until the spring 54 completes compression. Thereafter, a clutch is engaged and a shock is not directly transmitted.

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は噛み合いクラッチのシフトレバ−緩衝装置に
関するものであり、特に超小型ショベルカーに於いてク
ラッチ操作時の衝撃を減少させるシフトレバ−緩衝装置
に関するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a shift lever shock absorbing device for a dog clutch, and more particularly to a shift lever shock absorbing device for reducing impact during clutch operation in an ultra-compact excavator car. It is something.

[従来の技術] 従来、狭所で掘削作業を行うことができる超小型ショベ
ルカーは存在しない。此種超小型ショベルカーを製作す
るに当っては、車体を小さくするためにトランスミッシ
ョンの小型化を図る必要がある。そして、左右のクロー
ラを夫々独立して駆動し、且つスピンターンを容易なら
しめるために、ミッションケース内に左右別個に前後進
切替軸を設けると共に夫々の前後進切替軸に爪クラッチ
やボールクラッチ等の噛み合いクラッチを設け、入力軸
からの前後進駆動力を夫々別個に左右の前後進切替軸へ
断接自在に伝動し、更に、左右のクローラの駆動軸と前
後進切替軸との間に夫々ウオームギヤを介装し、逆転防
止を図ってブレーキ機構を省略する構成が考えられる。
[Prior Art] Conventionally, there has been no ultra-compact excavator car that can perform excavation work in narrow spaces. When manufacturing this type of ultra-compact excavator car, it is necessary to downsize the transmission in order to make the vehicle body smaller. In order to drive the left and right crawlers independently and to facilitate spin turns, separate forward/reverse switching shafts are provided in the transmission case for the left and right, and each of the forward/reverse switching shafts is equipped with a claw clutch, a ball clutch, etc. A dog clutch is provided to transmit the forward and backward drive force from the input shaft separately to the left and right forward and backward switching shafts, respectively. A configuration in which a worm gear is interposed to prevent reverse rotation and the brake mechanism is omitted may be considered.

[発明が解決しようとする課題1 前述した超小型ショベルカーは、入力軸の前後進駆動力
を噛み合いクラッチ等によって左右の前後進切替軸へ伝
動するが、噛み合いクラッチの接続に噛合部が弾き返さ
れることがある。従って、その衝撃がリンク装置を経て
シフトレバ−にまで伝わり、作業者の手にショックを与
えることになる。
[Problem to be Solved by the Invention 1] The above-mentioned ultra-compact excavator transmits the forward-reverse driving force of the input shaft to the left and right forward-reverse switching shafts using a dog clutch, etc. It may happen. Therefore, the impact is transmitted to the shift lever via the link device, giving a shock to the operator's hands.

そこで、超小型ショベルカーを製作するに当って、トラ
ンスミッションに於ける噛み合いクラッチの接続時の衝
撃を減少し、作業者の手に直接ショックが伝わらないよ
うにするために解決せられるべき技術的課題が生じてく
るのであり、本発明はこの課題を解決することを目的と
する。
Therefore, when manufacturing an ultra-compact excavator car, there are technical issues that must be solved in order to reduce the shock when the dog clutch in the transmission is engaged, and to prevent the shock from being transmitted directly to the hands of the worker. The present invention aims to solve this problem.

[課題を解決するための手段] この発明は、上記目的を達成するために提案せられたも
のであり、ミッションケース内の前後方向に入力軸を設
け、該入力軸の左右に入力軸と平行に夫々前後進切替軸
を枢設し、前後進切替軸に設けた噛み合いクラッチのス
ライダにシックを係合し、該シフタに回動自在なるシフ
タアームの一端部を係合すると共にシフタアームの先端
部をシフタロッドに係止し、このシフタロッドに連結し
たシフトレバ−を前進、中立、後進の各位置へ係止自在
に形成したリンク装置であって、前記シフタロッドの軸
方向に所定間隔をもってストッパを固着し、双方のスト
ッパ間のシフタロッドへ係+1リングをスライド自在に
遊嵌すると共に、該係+t。
[Means for Solving the Problems] This invention was proposed to achieve the above object, and includes an input shaft provided in the front and back direction inside the transmission case, and parallel to the input shaft on the left and right sides of the input shaft. A forward/reverse switching shaft is pivotally installed in each of the forward/reverse switching shafts, and a slider is engaged with a slider of a dog clutch provided on the forward/reverse switching shaft, and one end of a rotatable shifter arm is engaged with the shifter, and the tip of the shifter arm is A link device that locks on a shifter rod so that a shift lever connected to the shifter rod can be locked in each of forward, neutral, and reverse positions, wherein stoppers are fixed at predetermined intervals in the axial direction of the shifter rod, and the shift lever is connected to the shifter rod. The +1 ring is slidably and loosely fitted to the shifter rod between the stoppers of the +t.

リングと双方のストッパ間に夫々スプリングを介装し、
更に、該係止リングに前記シフタアームの先端部を枢着
したことを特徴とする超小型ショベルカーに於ける噛み
合いクラッチのシフトレバ−緩衝装置を提供せんとする
ものである。
A spring is interposed between the ring and both stoppers,
Furthermore, it is an object of the present invention to provide a shift lever shock absorbing device for a dog clutch in a micro-compact excavator, characterized in that the distal end of the shifter arm is pivotally connected to the locking ring.

[作用] シフトレバ−を中立位置から前進位置又は後進位置へ回
動すれば、リンク装置を介してシフタロッドが移動する
。シフタロッドの移動に伴ってストッパも一体的に移動
し、該ストッパの移動にょって、先ず、係+hリングの
両側に介装したスプリングの一方が圧縮され他方が弛緩
する。ここで、係+1=リング及びこれに枢着されたシ
フタアームは移動せず、係止リング内部をシフタロッド
がスライドしながら移動して、シフトレバ−は前進又は
後進の位置へ回動する。然る後、前記圧縮されたスプリ
ングの反発力によって係止リングがシフタロッドの移動
方向へ押圧され、係ILリングはシフタロッドをスライ
ドしながら双方のストッパの中間位置へ移動する。依っ
て、該係止リングに先端部が枢着されたシフタアームが
回動し、ミッションケース内のシフタがスライダを摺動
させて噛み合いクラッチが接続する。
[Operation] When the shift lever is rotated from the neutral position to the forward or reverse position, the shifter rod moves via the link device. As the shifter rod moves, the stopper also moves together, and as the stopper moves, one of the springs interposed on both sides of the engagement ring is compressed and the other is relaxed. Here, the locking +1=ring and the shifter arm pivotally connected thereto do not move, but the shifter rod moves while sliding inside the locking ring, and the shift lever is rotated to the forward or reverse position. Thereafter, the locking ring is pressed in the direction of movement of the shifter rod by the repulsive force of the compressed spring, and the locking IL ring moves to an intermediate position between both stoppers while sliding on the shifter rod. Accordingly, the shifter arm whose tip is pivotally attached to the locking ring rotates, and the shifter inside the transmission case slides the slider to connect the dog clutch.

即ち、先ず、シフトレバ−を所定の位置に回動して係止
させ、次に前記スプリングの抑圧によって係止リングに
枢着したシフタアームを強制的に回動させることにより
、譬え噛合部が弾き返されることがあっても、スライダ
を摺動させて噛み合いクラッチを接続させる。而して、
噛み合いクラッチ接続時の衝撃は係止リング内部のスプ
リングによって緩衝され、シフトレバ−に直接伝動され
るのを防止できる。
That is, first, the shift lever is rotated to a predetermined position and locked, and then the shifter arm, which is pivotally connected to the locking ring, is forcibly rotated by the compression of the spring, so that the meshing part is rebound. Even if the clutch is connected, the slider will slide and the dog clutch will be connected. Then,
The impact when the dog clutch is engaged is damped by the spring inside the locking ring, and can be prevented from being directly transmitted to the shift lever.

[実施例1 以下、この発明の一実施例を別紙添付図面に従って詳述
する。第1図は超小型ショベルカーを示したものであり
、アッパフレーム(1)の前部に作業用ブーム(2)の
取付部(3)が突設され、該アッパフレーA(+)の左
右両側部にクローラフレーム(4)(4)を下段しであ
る。該アッパフレーム(1)の後部にはミッションケー
ス(5)が下段され、ミッションケース(5)の左右両
側に駆動スブロケッ) (6X6)の軸支部(7)(7
)を設けると共に、夫々の軸支部(7)(7)は前記左
右のクローラフレーム(4)(4)の後端部に連結され
る。更に、左右のクローラフレーム(4X4)の前端部
には受動輪(8)(8)を枢着し、駆動スプロケット(
6)(6)との間にクローラ(9)(9)を巻装する。
[Embodiment 1] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 shows an ultra-compact excavator car, in which a mounting part (3) for a working boom (2) is provided protruding from the front part of an upper frame (1), and the mounting part (3) for a working boom (2) is provided on both left and right sides of the upper frame A (+). The crawler frame (4) (4) is placed in the lower part. A transmission case (5) is lowered at the rear of the upper frame (1), and drive subrockets (6x6) are mounted on both left and right sides of the mission case (5).
), and the respective shaft supports (7) (7) are connected to the rear end portions of the left and right crawler frames (4) (4). Furthermore, driven wheels (8) (8) are pivotally attached to the front ends of the left and right crawler frames (4X4), and drive sprockets (
6) Wrap the crawler (9) (9) between it and (6).

そして、ミッションケース(5)の上部にエンジン00
)を載設する。
Then, the engine 00 is placed on the top of the mission case (5).
) will be included.

そして、エンジン00)の動力はエンジンプーリ01)
に巻回されたベルト(12を介してミッションプーリ(
+1へ伝達され、トランスミッションの入力軸Hを回転
させる。該ミッションプーリ(+34:12段プーリと
なっており、同軸のブー1ハ1つへベルト(lieを巻
回して油圧ポンプ(r?)のブー1バ1へ動力を伝達す
る。
And the power of the engine 00) is the engine pulley 01)
The belt (12) wound around the transmission pulley (
+1 and rotates the input shaft H of the transmission. The mission pulley (+34: is a 12-stage pulley, and a belt (lie) is wound around one coaxial boob to transmit power to one boob and one bar of a hydraulic pump (r?).

前記アッパフレーム(+)の上部にはボンネットフレー
ム(時が固設されており、エンジン00の上面に平板状
のプレート(イ)を複数本のボルトG!l)<21)・
・・にて固着し1このプレート(イ)の上下面に後述す
る各操作レバーの取付部@(イ)・・・を設けである。
A bonnet frame (time) is fixed to the upper part of the upper frame (+), and a flat plate (a) is attached to the top surface of the engine 00 with a plurality of bolts G!l)<21).
1. Attachment portions for each operating lever, which will be described later, are provided on the upper and lower surfaces of this plate (A).

ボンネットフレーム(Fjl )前N’sには油圧のコ
ントロールバルブ@(至)・・・を設け、これに左右の
油圧操作レバー(ロ)(2)を取り付け、その後部に前
後進切替のシフトレバ−(ハ)凶を取り付けである。夫
々のシフトレバ−(ハ)は取付部(2)を中心に前後へ
回動し、前記プレート(イ)に固設した係止装置(1)
により、後述するように「前進」「中立」「後進」の各
位置へ係止自在に形成しである。該シフトレバ−(ハ)
の取付部(2)にはアームに)が下段され、取付部(至
)を中心にシフトレバ−(ハ)とは対称的な方向へ回動
自在にし、アームに)の下端部にシフタロッド(1)の
前端部を枢着する。ミッションケース(5)の左右には
噛み合いクラッチのシフタアーム(50) (50)が
突設され、その先端蔀はシフタロッド(イ)(イ)の後
端部に設けた緩衝装置(1)に連結されている。
A hydraulic control valve @ (to) is installed in the front N's of the bonnet frame (Fjl), and left and right hydraulic operating levers (b) (2) are attached to this, and a shift lever for forward/forward switching is attached to the rear of it. (c) It's a bad idea. Each shift lever (c) rotates back and forth around the mounting part (2), and the locking device (1) is fixed to the plate (a).
As described later, it is formed so that it can be locked in each of the "forward", "neutral" and "reverse" positions. The shift lever (c)
A shifter rod (1) is attached to the lower end of the arm (2), and is rotatable about the attachment part (2) in a direction symmetrical to the shift lever (C). ) is pivoted to the front end. Shifter arms (50) (50) of dog clutches are provided protruding from the left and right sides of the transmission case (5), and their tip ends are connected to the shock absorber (1) provided at the rear end of the shifter rod (A) (A). ing.

第2図及び第3図は前記シフトレバ−(ハ)の係!ト装
置(1)を示しており、取付部(2)近傍のシフトレバ
−(ハ)の−側部にスプリングケース01)を固設し、
該スプリングケース01)内にスライダ(ロ)を摺動自
在に遊嵌すると共にスプリング(2)を内装しである。
Figures 2 and 3 show the shift lever (c)! A spring case 01) is fixed on the negative side of the shift lever (c) near the mounting part (2).
A slider (b) is slidably and loosely fitted into the spring case 01), and a spring (2) is installed inside.

該スライダ(2)の下部にはローラ(ロ)が枢着され、
前記スプリング(至)の付勢によりスライダ(至)のガ
イド溝(ハ)に挿入されたカムプレート(1)の上縁部
にローラ(ロ)を圧接している。
A roller (b) is pivotally attached to the lower part of the slider (2),
The roller (b) is pressed against the upper edge of the cam plate (1) inserted into the guide groove (c) of the slider (to) by the bias of the spring (to).

ここで、カムプレート(1)について説明すれば、該カ
ムプレート(イ)は背面視略し字状であり、その上縁部
は前後に夫々ストッパ@(ロ)が突設され、略中央部に
前記ローラ(ロ)を係止するための四部(イ)を設ける
と共に、その前後に四部(ロ)■を設けである。
Here, to explain the cam plate (1), the cam plate (A) has an abbreviated shape when viewed from the rear, with stoppers @ (B) protruding from its upper edge at the front and rear, and approximately at the center. Four parts (a) are provided for locking the roller (b), and four parts (b) (2) are provided before and after the roller (b).

図示した状態では前記ローラ(ロ)が中央の凹部(至)
に係合し、シフトレバ−(ハ)は「中立」状態に係止さ
れている。而して、シフトレバ−(ト)を前後前れかに
回動すれば、スプリング(至)に付勢されたローラ(ロ
)が凹部(ロ)又は(イ)に係合して、その位置でシフ
トレバ−(ハ)が係止される。シフトレバ−(ハ)を倒
回し過ぎた場合はストッパ(ロ)に当接し、該ストッパ
(ロ)によってシフトレバ−(ハ)の回動範囲を規制し
ている。第2図中、−点鎖線は取付部(至)を中心とし
たローラ伽)部分の回転半径の軌跡であるが、この軌跡
から明らかなように、前後の凹部(ロ)(樽の中央側に
は夫々面取部(39り(401)を設けてあり、シフト
レバ−(ハ)の回動時にローラ04)が急速に前後の四
部(イ)(旬へ係合するように形成されている。
In the illustrated state, the roller (B) is located at the center recess (to).
, and the shift lever (c) is locked in the "neutral" state. Therefore, when the shift lever (G) is rotated forward or backward, the roller (B) biased by the spring (To) engages with the recess (B) or (A), shifting the position. The shift lever (c) is locked. When the shift lever (c) is turned too far, it comes into contact with a stopper (b), and the stopper (b) restricts the rotation range of the shift lever (c). In Fig. 2, the dashed-dotted line is the locus of the rotation radius of the roller part around the attachment part (to). are each provided with a chamfered portion (39 (401)), and are formed so that when the shift lever (C) rotates, the roller 04) rapidly engages with the front and rear four portions (A). .

又、前記ローラ(ロ)の中央部はやや小径に段設されて
おり、この段設された表面にカムプレート(1)の上縁
部が当接し、ガイド溝(至)でカムプレート(1)の両
側を挾持しているため、スライダ(至)が不慮回転する
ことはなく、シフトレバ−(ハ)の回動を極めて円滑に
行うことができ、ローラ(ロ)が凹部OI(ロ)(4へ
夫々確実に係合して「中立」「後進j「前進」の位置に
シフトレバ−(ハ)を係止することができる。
Further, the central part of the roller (B) is stepped to have a slightly smaller diameter, and the upper edge of the cam plate (1) comes into contact with this stepped surface, and the guide groove (to) contacts the cam plate (1). ), the slider (to) does not rotate unexpectedly, and the shift lever (c) can be rotated extremely smoothly, and the roller (b) is held in the recessed part OI (b) ( 4, respectively, to lock the shift lever (c) in the "neutral", "reverse" and "forward" positions.

而も、前記ローラ(ロ)の段設部にてカムプレート(1
)の両側を挾持するため、該ローラ(ロ)をスライダ(
2)の孔(11)へ側方から挿入するのみで極めて容易
に組み付けが完了し、カムプレート(ト)へ当接した後
はスプリング(ハ)の付勢により該ローラ(ロ)が外れ
る虞れはない。
Moreover, the cam plate (1) is installed at the stepped portion of the roller (B).
) to hold both sides of the roller (b) with the slider (
The assembly is extremely easy to complete by simply inserting it into the hole (11) in 2) from the side, and there is a risk that the roller (B) may come off due to the bias of the spring (C) after it comes into contact with the cam plate (G). There is no such thing.

第4図はミッションケース(5)の内部を示し、第5図
は各軸及びギヤの噛合状態を説明するための展開図であ
り、ミッションケース(5)内の前後方向に人力軸(1
70が枢設され、前述したように、該入力軸(ゆの前端
部はミッションケース(5)から前方へ突出してミッシ
ョンブー1バ11が嵌着されている。該入力軸(時の後
部には円筒状のスリーブ(41)を遊転自在に外嵌し、
該入力軸(ゆと平行にその上部へ副変速軸(42)を枢
設すると共に、左右へ夫々前後進切替軸(43H43)
を枢設する。
Figure 4 shows the inside of the mission case (5), and Figure 5 is a developed view for explaining the meshing state of each shaft and gear.
As mentioned above, the front end of the input shaft protrudes forward from the mission case (5) and the mission boot 11 is fitted into it. is fitted with a cylindrical sleeve (41) freely rotatable,
A sub-transmission shaft (42) is pivotally installed on the upper part of the input shaft (parallel to the input shaft), and forward and backward switching shafts (43H43) are provided to the left and right, respectively.
to be established.

入力軸(ゆの回転は副変速ギヤ(Gl)によって減速さ
れ、−旦副変速軸(42)へ伝動された後に駆動ギヤ(
G2)によってスリーブ(41)へ伝動される。一方、
左右の前後進切替軸(43)には前進ギヤ(G3)及び
後進ギヤ(G4)が対峙して遊嵌されており、双方のギ
ヤ(G3)(G4)の中間にボールクラッチ(44)を
設けてシフタ(45)にてスライダ(46)を摺動でき
るように形成しである。前記駆動ギヤ(G2)は前進ギ
ヤ(G3)と常時噛合しており、スリーブ(41)のギ
ヤ(G5)は後進ギヤ(G4)と常時噛合する。
The rotation of the input shaft is decelerated by the auxiliary transmission gear (Gl) and transmitted to the auxiliary transmission shaft (42), then the drive gear (
G2) to the sleeve (41). on the other hand,
A forward gear (G3) and a reverse gear (G4) are loosely fitted to the left and right forward/reverse switching shafts (43) facing each other, and a ball clutch (44) is installed between both gears (G3) (G4). The shifter (45) is provided so that the slider (46) can be slid thereon. The drive gear (G2) is always in mesh with the forward gear (G3), and the gear (G5) of the sleeve (41) is always in mesh with the reverse gear (G4).

左右夫々の前後進切替軸(43)(43)の前端部には
ウオームギヤ(G6)(G6)が設けられており、ミッ
ションケース(5)の左右方向へ枢設したウオームホイ
ール軸(37)(3?)の内側端部にウオームホイール
(G7)(G7)を嵌着し、前記ウオームギヤ(G6)
 (G6)とウオームホイール(GV)(GV)とを噛
合させる。該ウオームホイール軸(47)(4?)の外
側端部には減速ギヤ(G8)(G8)を嵌着すると共に
、該ウオームホイール軸(4?) (4?)の下部に枢
設された駆動軸(4B)(4B)の内側端部に減速ギヤ
(G9)(G9)を嵌着して、前記減速ギヤ(G8)(
G8)と減速ギヤ(G9)(G9)とを噛合させる。
Worm gears (G6) (G6) are provided at the front ends of the left and right forward/reverse switching shafts (43) (43), respectively, and the worm wheel shafts (37) ( Fit the worm wheel (G7) (G7) to the inner end of the worm gear (G6)
(G6) and the worm wheel (GV) are engaged with each other. A reduction gear (G8) (G8) is fitted to the outer end of the worm wheel shaft (47) (4?), and is pivoted at the bottom of the worm wheel shaft (4?) (4?). Reduction gears (G9) (G9) are fitted to the inner ends of the drive shafts (4B) (4B), and the reduction gears (G8) (
G8) and the reduction gear (G9) are brought into mesh with each other.

更に、駆動軸(4B)(4B)の外側端部はミッション
ケース(5)の左右外側へ突出し、この突出部位に駆動
スプロケット(6)(6)を嵌着してクローラ(9)(
Q)を巻装する。
Further, the outer end portions of the drive shafts (4B) (4B) protrude to the left and right outer sides of the mission case (5), and the drive sprockets (6) (6) are fitted into these protruding portions to drive the crawler (9) (
Wrap Q).

一方、前記シック(45)はシフタ軸(49)に遊嵌さ
れ、ミッションケース(5)の上部に枢着したシフタア
ーム(50)の一端部(50m)に係合している。従っ
て、該シフタアーム(50)が水平方向に回動すれば前
記シフタ(45)はシフタ軸(49)上を前後何れかに
移動し、スライダ(46)を移動させてボールクラッチ
(44)を作動させ、前進ギヤ(G3)又は後進ギヤ(
G4)の何れか一方の回転が前後進切替軸(43)へ伝
達されるように形成しである。
On the other hand, the chic (45) is loosely fitted onto the shifter shaft (49) and engaged with one end (50m) of a shifter arm (50) pivotally attached to the upper part of the transmission case (5). Therefore, when the shifter arm (50) rotates in the horizontal direction, the shifter (45) moves forward or backward on the shifter shaft (49), moves the slider (46), and operates the ball clutch (44). and shift to forward gear (G3) or reverse gear (
G4) is formed so that rotation of either one is transmitted to the forward/reverse switching shaft (43).

第4図及び第6図に従って前記緩衝装置(1)について
更に説明すれば、シフタアーム(50)はミッションケ
ース(5)の上面から夫々両側方へ突設されており、そ
の先端部(5(lb)はシフタロッド(イ)の後端部に
遊挿した係止リング(51)の下部に枢着されている。
To further explain the shock absorber (1) according to FIG. 4 and FIG. ) is pivotally attached to the lower part of a locking ring (51) loosely inserted into the rear end of the shifter rod (a).

前記シフタロッドに)の後端部には軸方向に所定間隔を
もってストッパ(52) (53)を固着してあり、該
係止リング(51)は双方のストッパ(52) (53
)間にスプリング(54)(55)を介して挟圧され、
且つシフタロッド(ト)の軸上をスライド自在に遊挿さ
れている。又、シフタロッド(イ)の前端部はジヨイン
ト(56)を介して前記アームに)の下端部へ枢着しで
ある。
Stoppers (52) (53) are fixed to the rear end of the shifter rod at predetermined intervals in the axial direction, and the locking ring (51) is connected to both stoppers (52) (53).
) is pressed between the springs (54) and (55),
Moreover, it is loosely inserted so as to be able to slide freely on the shaft of the shifter rod (G). Further, the front end of the shifter rod (a) is pivotally connected to the lower end of the arm via a joint (56).

而して、第1図に示したシフトレノく−(ハ)を例えば
後方へ倒回すれば、取付部(2)を支点としてアーム(
ト)が第1図中時計方向へ回動し、シフタロッド(ト)
が前方へ引張られると共に、第2図にて前述した係止装
置に)によってシフトレバ−(ハ)が凹部(ロ)で係止
される。然るとき、第6図の鎖線で示すように、係止リ
ング(5I)の両側部に設けたカラー(57)(57)
の−側面が一方のストッパ(52)に当接するまでスプ
リング(54)が圧縮され、且つ他方のストッパ(53
)側のスプリング(55)が弛緩して、該係止リング(
51)の内部をスライドしながらシフタロッド(1)の
みが前方へ移動する。従って、このときには係止リング
(51)の位置は移動せず、シフタアーム(50)の先
端部(50b) も回動しない。続いて、圧縮された前
記スプリング(54)の反発力によって該係止リング(
51)が急激に前方へ押圧され、シフタアーム(50)
を回動して前記ボールクラッチ(44)を作動させよう
とする。このとき、ボールクラッチ(44)の噛合部に
ボールが弾き返されて噛合が円滑にいかない場合であっ
ても、前記スプリング(54)の反発力によって係止リ
ング(51)をスライドさせ、第7図に示すようにシフ
タアーム(50)の先端部(50h)を回動して強制的
にボールクラッチ(44)を作動させる。この作動タイ
ミングはストッパ(52) (53)の間隔及び(54
H54)によって適宜調整される。斯くして、第5図に
示したスライダ(46)が後方へ摺動し、後進ギヤ(G
4)側のボールが噛合部に係合して前後進切替軸(43
)には後進駆動力が伝動される。
Therefore, if the shift lever (c) shown in Fig. 1 is tilted backward, for example, the arm (
The shifter rod (g) rotates clockwise in Figure 1, and the shifter rod (g)
is pulled forward, and the shift lever (c) is locked in the recess (b) by the locking device described above in FIG. At that time, as shown by the chain lines in FIG. 6, the collars (57) (57) provided on both sides of the locking ring (5I)
The spring (54) is compressed until the side surface of the spring (54) abuts one stopper (52), and the other stopper (53)
) side spring (55) is relaxed and the locking ring (
Only the shifter rod (1) moves forward while sliding inside the shifter rod (51). Therefore, at this time, the position of the locking ring (51) does not move, and the tip (50b) of the shifter arm (50) does not rotate. Subsequently, the locking ring (
51) is suddenly pushed forward, and the shifter arm (50)
The ball clutch (44) is attempted to be operated by rotating the ball clutch (44). At this time, even if the balls are repelled by the meshing portion of the ball clutch (44) and the meshing is not smooth, the locking ring (51) is slid by the repulsive force of the spring (54), and the locking ring (51) is slid. As shown in FIG. 7, the tip (50h) of the shifter arm (50) is rotated to forcibly operate the ball clutch (44). This operation timing is determined by the interval between the stoppers (52) (53) and (54).
H54) shall be adjusted as appropriate. In this way, the slider (46) shown in FIG. 5 slides rearward, and the reverse gear (G
The ball on the 4) side engages with the meshing part and the forward/reverse switching shaft (43
) to which the reverse driving force is transmitted.

これに対して、シフトレバ−(ハ)を前方へ倒回した場
合には、係止装置(1)の凹部(4でシフトレバ−(ハ
)が係止され、前述とは逆に緩衝装置(1)のストッパ
(53)(1111のスプリング(55)が圧縮される
。以下、前述とは対称的にシフタロッド(1)が後方へ
移動した後、スプリング(55)の反発力によってシフ
タアーム(50)が回動し、ボールクラッチ(44)の
スライダ(46)が前方へ摺動して前後進切替軸(43
)には前進駆動力が伝動される。
On the other hand, when the shift lever (C) is turned forward, the shift lever (C) is locked in the recess (4) of the locking device (1), and contrary to the above, the shift lever (C) is locked in the recess (4) of the locking device (1). ) of the stopper (53) (1111 spring (55) is compressed.Hereinafter, in contrast to the above, after the shifter rod (1) moves rearward, the shifter arm (50) is moved by the repulsive force of the spring (55). The slider (46) of the ball clutch (44) slides forward and the forward/reverse switching shaft (43) rotates.
) forward driving force is transmitted.

而して、シフトレバ−(ハ)を回動して前進又は後進位
置にシフトする場合、シフトレバ−(ハ)が回動された
ときに直ちにはシフタアーム(50)が回動せず、シフ
トレバ−(ハ)が係止装置(1)によって係+Thされ
た後にボールクラッチ(44)が接続される0従って、
ボールクラッチ(44)のボールの弾き返し等の衝撃が
衝撃装置(1)にて吸収され、作業者の手に直接伝わる
ことが防止される。
Therefore, when the shift lever (C) is rotated to shift to the forward or reverse position, the shifter arm (50) does not rotate immediately when the shift lever (C) is rotated, and the shift lever (C) is rotated. C) The ball clutch (44) is connected after the locking device (1) has engaged +Th. Therefore,
Impacts such as those caused by the rebound of the balls of the ball clutch (44) are absorbed by the impact device (1) and are prevented from being directly transmitted to the operator's hands.

尚、この考案は、この考案の精神を逸脱しない限り種々
の改変を為す事ができ、そして、この考案が該改変せら
れたものに及ぶことは当然である。
It should be noted that this invention can be modified in various ways without departing from the spirit of the invention, and it goes without saying that this invention extends to such modifications.

[発明の効果] この発明は上記一実施例にて詳述したように、シフトレ
バ−の回動によってシフタロッドが前後動する際に、ス
プリングの圧縮によってシフタアームの回動を遅延させ
ることができる。而して、シフトレバ−が前進又は後進
位置に係止された後に、前記スプリングによって強制的
に噛み合いクラッチを噛合させるため、噛み合いクラッ
チの接続が円滑となり、衝撃がシフトレバ−に直接伝動
されず、作業者の手許への不快なショックがなくなる。
[Effects of the Invention] As described in detail in the above embodiment, the present invention can delay the rotation of the shifter arm by compressing the spring when the shifter rod moves back and forth due to rotation of the shift lever. Since the dog clutch is forcibly engaged by the spring after the shift lever is locked in the forward or reverse position, the dog clutch is connected smoothly, and the impact is not directly transmitted to the shift lever, making work easier. There will be no unpleasant shock to the person's hands.

斯くして、噛み合いクラッチの操作性が極めて良nとな
り、簡素な構成でシフトレバ−の緩衝装置を形成できる
と共に、トランスミッションの小型化を図って車体の小
さな超小型ショベルカーを製作することが可能となる。
In this way, the operability of the dog clutch becomes extremely good, and the shock absorber for the shift lever can be formed with a simple structure, and the transmission can be downsized, making it possible to manufacture an ultra-compact excavator car with a small body. Become.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明の一実施例を示したものであり、第1図は超
小型ショベルカーの一部切欠側面図、第2図は係止装置
の要部切欠側面図、第3図は同要部切欠背面図、第4図
はミッションケースの縦断背面図、第5図はミッション
ケース内の各軸及びギヤの噛合状態を説明するための展
開図、第6図及び第7図は緩衝装置の作動状態を説明す
る要部の平面図である。 (5)・・・ミッションケース (ハ)・・・・・・シフトレバ− (1)・・・・・・緩衝装置 (44)・・・ボールクラッチ (4B)・・・スライダ (50s)・・・一端部 (ゆ・・・入力軸 (ト)・・・シフタロッド (43)・・・前後進切替軸 (45)・・・シフタ (50)・・・シフタアーム (50b)・・・先端部 (51)・・・係止リング (54)(55)・・・スプリング (52) (53)・・・ストッパ
The figures show one embodiment of the present invention, in which Fig. 1 is a partially cutaway side view of an ultra-compact excavator car, Fig. 2 is a partially cutaway side view of the main part of the locking device, and Fig. 3 is a partially cutaway side view of the main part of the locking device. Fig. 4 is a longitudinal cross-sectional rear view of the transmission case, Fig. 5 is an exploded view to explain the meshing state of each shaft and gear in the transmission case, and Figs. 6 and 7 are diagrams of the shock absorber. FIG. 3 is a plan view of main parts for explaining the operating state. (5)...Mission case (c)...Shift lever (1)...Buffer device (44)...Ball clutch (4B)...Slider (50s)...・One end (Y)... Input shaft (G)... Shifter rod (43)... Forward/forward switching shaft (45)... Shifter (50)... Shifter arm (50b)... Tip ( 51)...Lock ring (54) (55)...Spring (52) (53)...Stopper

Claims (1)

【特許請求の範囲】[Claims] ミッションケース内の前後方向に入力軸を設け、該入力
軸の左右に入力軸と平行に夫々前後進切替軸を枢設し、
前後進切替軸に設けた噛み合いクラッチのスライダにシ
フタを係合し、該シフタに回動自在なるシフタアームの
一端部を係合すると共にシフタアームの先端部をシフタ
ロッドに係止し、このシフタロッドに連結したシフトレ
バーを前進、中立、後進の各位置へ係止自在に形成した
リンク装置であつて、前記シフタロッドの軸方向に所定
間隔をもつてストッパを固着し、双方のストッパ間のシ
フタロツドへ係止リングをスライド自在に遊嵌すると共
に、該係止リングと双方のストッパ間に夫々スプリング
を介装し、更に、該係止リングに前記シフタアームの先
端部を枢着したことを特徴とする超小型ショベルカーに
於ける噛み合いクラッチのシフトレバー緩衝装置。
An input shaft is provided in the front-rear direction inside the mission case, and forward-reverse switching shafts are pivotally installed on the left and right sides of the input shaft in parallel with the input shaft, respectively.
A shifter is engaged with a slider of a dog clutch provided on a forward/reverse switching shaft, and one end of a rotatable shifter arm is engaged with the shifter, and the tip of the shifter arm is locked with a shifter rod and connected to the shifter rod. A link device formed to be able to lock the shift lever in forward, neutral, and reverse positions, in which stoppers are fixed at predetermined intervals in the axial direction of the shifter rod, and a locking ring is attached to the shifter rod between both stoppers. An ultra-compact excavator characterized in that the shifter arm is slidably and loosely fitted, a spring is interposed between the locking ring and both stoppers, and the tip of the shifter arm is pivotally connected to the locking ring. Shift lever shock absorber for dog clutches in cars.
JP1311614A 1989-11-30 1989-11-30 Shift lever buffering device for engaging clutch for microshovel car Pending JPH03172675A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1311614A JPH03172675A (en) 1989-11-30 1989-11-30 Shift lever buffering device for engaging clutch for microshovel car
US07/587,865 US5086896A (en) 1989-11-30 1990-09-25 Jaw clutch coupling mechanism and shift lever link mechanism
EP19900119028 EP0429801A3 (en) 1989-11-30 1990-10-04 Jaw clutch coupling mechanism and shift lever link mechanism
KR1019900017556A KR930011564B1 (en) 1989-11-30 1990-10-31 Jaw clutch coupling mechanism and shift lever link mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1311614A JPH03172675A (en) 1989-11-30 1989-11-30 Shift lever buffering device for engaging clutch for microshovel car

Publications (1)

Publication Number Publication Date
JPH03172675A true JPH03172675A (en) 1991-07-26

Family

ID=18019373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1311614A Pending JPH03172675A (en) 1989-11-30 1989-11-30 Shift lever buffering device for engaging clutch for microshovel car

Country Status (1)

Country Link
JP (1) JPH03172675A (en)

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US5692992A (en) * 1996-02-14 1997-12-02 Volva Penta Of The Americas, Inc. Shift assist and engine interrupter apparatus
WO2006003878A1 (en) * 2004-07-01 2006-01-12 Yamaha Hatsudoki Kabushiki Kaisha Shift control device for saddle-riding-type vehicle, and saddle-riding-type vehicle
JP2006520717A (en) * 2003-03-17 2006-09-14 ルノー・エス・アー・エス Shock absorbing support device for automobile
US7367923B2 (en) 2004-12-10 2008-05-06 Yamaha Hatsudoki Kabushiki Kaisha Apparatus and method for controlling transmission of straddle-type vehicle
US7497804B2 (en) 2006-04-18 2009-03-03 Yamaha Hatsudoki Kabushiki Kaisha Automatic gearshift control device and vehicle
US7510503B2 (en) 2006-02-24 2009-03-31 Yamaha Hatsudoki Kabushiki Kaisha Clutch failure detector, automatic clutch system and straddle-type vehicle
US7513849B2 (en) 2006-04-18 2009-04-07 Yamaha Hatsudoki Kabushiki Kaisha Automated transmission controller and vehicle including the automated transmission controller
JP2009250307A (en) * 2008-04-03 2009-10-29 Honda Motor Co Ltd Shifting system and motorcycle
US7635054B2 (en) 2006-04-18 2009-12-22 Yamaha Hatsudoki Kabushiki Kaisha Kabushiki Kaisha Moric Clutch actuator, engine unit, and saddle type vehicle
US7654374B2 (en) 2006-04-18 2010-02-02 Yamaha Hatsudoki Kabushiki Kaisha Automated transmission controller and vehicle including the automated transmission controller
US7665567B2 (en) 2006-04-18 2010-02-23 Yamaha Hatsudoki Kabushiki Kaisha Shift actuator, vehicle, and method of integrating vehicle
US7673727B2 (en) 2006-04-18 2010-03-09 Yamaha Hatsudoki Kabushiki Kaisha Automatic shift control device and vehicle
US7699151B2 (en) 2006-04-18 2010-04-20 Yamaha Hatsudoki Kabushiki Kaisha Clutch actuator, engine unit, and saddle type vehicle
US7721858B2 (en) 2006-04-18 2010-05-25 Yamaha Hatsudoki Kabushiki Kaisha Clutch actuator, engine unit, and saddle type vehicle
US7881847B2 (en) 2006-04-18 2011-02-01 Yamaha Hatsudoki Kabushiki Kaisha Clutch control device and vehicle
US7912613B2 (en) 2004-07-01 2011-03-22 Yamaha Hatsudoki Kabushiki Kaisha Riding type vehicle
US8403093B2 (en) 2004-07-26 2013-03-26 Yamaha Hatsudoki Kabushiki Kaisha Speed change controller for saddle-ride type vehicles

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JPS60215426A (en) * 1984-04-10 1985-10-28 Fuji Tekkosho:Kk Waiting mechanism of sub-transmission for four-wheel drive vehicle

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JPS497930A (en) * 1972-05-11 1974-01-24
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JPS60215426A (en) * 1984-04-10 1985-10-28 Fuji Tekkosho:Kk Waiting mechanism of sub-transmission for four-wheel drive vehicle

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Publication number Priority date Publication date Assignee Title
US5692992A (en) * 1996-02-14 1997-12-02 Volva Penta Of The Americas, Inc. Shift assist and engine interrupter apparatus
JP2006520717A (en) * 2003-03-17 2006-09-14 ルノー・エス・アー・エス Shock absorbing support device for automobile
US7823472B2 (en) 2004-07-01 2010-11-02 Yamaha Hatsudoki Kabushiki Kaisha Shift control device for vehicle, and vehicle including the shift control device
WO2006003879A1 (en) * 2004-07-01 2006-01-12 Yamaha Hatsudoki Kabushiki Kaisha Operation force transmission mechanism and saddle-riding-type vehicle
JPWO2006003879A1 (en) * 2004-07-01 2008-04-17 ヤマハ発動機株式会社 Actuating force transmission mechanism and saddle riding type vehicle
JPWO2006003878A1 (en) * 2004-07-01 2008-04-17 ヤマハ発動機株式会社 Saddle type vehicle shift control device and saddle type vehicle
JP4688809B2 (en) * 2004-07-01 2011-05-25 ヤマハ発動機株式会社 Actuating force transmission mechanism and saddle riding type vehicle
CN100462595C (en) * 2004-07-01 2009-02-18 雅马哈发动机株式会社 Operation force transmission mechanism and saddle-riding-type vehicle
US7912613B2 (en) 2004-07-01 2011-03-22 Yamaha Hatsudoki Kabushiki Kaisha Riding type vehicle
US8001864B2 (en) 2004-07-01 2011-08-23 Yamaha Hatsudoki Kabushiki Kaisha Actuation force transmission mechanism and straddle-type vehicle
JP4737687B2 (en) * 2004-07-01 2011-08-03 ヤマハ発動機株式会社 Engine and saddle type vehicle
WO2006003878A1 (en) * 2004-07-01 2006-01-12 Yamaha Hatsudoki Kabushiki Kaisha Shift control device for saddle-riding-type vehicle, and saddle-riding-type vehicle
US8403093B2 (en) 2004-07-26 2013-03-26 Yamaha Hatsudoki Kabushiki Kaisha Speed change controller for saddle-ride type vehicles
US7367923B2 (en) 2004-12-10 2008-05-06 Yamaha Hatsudoki Kabushiki Kaisha Apparatus and method for controlling transmission of straddle-type vehicle
US7510503B2 (en) 2006-02-24 2009-03-31 Yamaha Hatsudoki Kabushiki Kaisha Clutch failure detector, automatic clutch system and straddle-type vehicle
US7635054B2 (en) 2006-04-18 2009-12-22 Yamaha Hatsudoki Kabushiki Kaisha Kabushiki Kaisha Moric Clutch actuator, engine unit, and saddle type vehicle
US7673727B2 (en) 2006-04-18 2010-03-09 Yamaha Hatsudoki Kabushiki Kaisha Automatic shift control device and vehicle
US7699151B2 (en) 2006-04-18 2010-04-20 Yamaha Hatsudoki Kabushiki Kaisha Clutch actuator, engine unit, and saddle type vehicle
US7721858B2 (en) 2006-04-18 2010-05-25 Yamaha Hatsudoki Kabushiki Kaisha Clutch actuator, engine unit, and saddle type vehicle
US7673728B2 (en) 2006-04-18 2010-03-09 Yamaha Hatsudoki Kabushiki Kaisha Automated transmission controller and vehicle including the automated transmission controller
US7881847B2 (en) 2006-04-18 2011-02-01 Yamaha Hatsudoki Kabushiki Kaisha Clutch control device and vehicle
US7665567B2 (en) 2006-04-18 2010-02-23 Yamaha Hatsudoki Kabushiki Kaisha Shift actuator, vehicle, and method of integrating vehicle
US7654374B2 (en) 2006-04-18 2010-02-02 Yamaha Hatsudoki Kabushiki Kaisha Automated transmission controller and vehicle including the automated transmission controller
US7513849B2 (en) 2006-04-18 2009-04-07 Yamaha Hatsudoki Kabushiki Kaisha Automated transmission controller and vehicle including the automated transmission controller
US7497804B2 (en) 2006-04-18 2009-03-03 Yamaha Hatsudoki Kabushiki Kaisha Automatic gearshift control device and vehicle
JP2009250307A (en) * 2008-04-03 2009-10-29 Honda Motor Co Ltd Shifting system and motorcycle

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