JPS6330578Y2 - - Google Patents
Info
- Publication number
- JPS6330578Y2 JPS6330578Y2 JP8440480U JP8440480U JPS6330578Y2 JP S6330578 Y2 JPS6330578 Y2 JP S6330578Y2 JP 8440480 U JP8440480 U JP 8440480U JP 8440480 U JP8440480 U JP 8440480U JP S6330578 Y2 JPS6330578 Y2 JP S6330578Y2
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- lever
- brake
- operating
- swung
- 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.)
- Expired
Links
- 230000005540 biological transmission Effects 0.000 claims description 18
- 208000003443 Unconsciousness Diseases 0.000 description 1
Description
【考案の詳細な説明】
本考案は、例えば、耕耘ロータリなど駆動作業
装置の作動停止に伴なう慣性作動を阻止すべく、
その駆動作業装置への動力伝達軸中に介装したク
ラツチとブレーキとを、1本の操作レバーをもつ
て連係操作自在に構成したもので、詳しくは、横
軸周りに揺動自在な1本の操作レバーに、共通の
伝動機構中に介装したクラツチとブレーキとを、
前記レバーがクラツチの切り位置に揺動操作され
たとき、ブレーキが制動作動され、かつ、前記レ
バーがクラツチの入り位置に揺動操作されたと
き、ブレーキが制動解除作動される連動状態に連
係させるとともに、前記レバーに、それの長手方
向に沿つてのみ移動自在なロツク用操作部材を1
方向に移動付勢した状態に付設し、この操作部材
から突設のロツク片を前記操作レバーのクラツチ
に対する入り切り揺動範囲においては前記の移動
付勢力に抗した状態で移動案内する円弧状のガイ
ド溝と、前記操作レバーがクラツチの切り位置に
揺動された時、前記の移動付勢力によつてその移
動付勢方向に嵌入移動させて前記レバーのクラツ
チ入り方向への揺動を規制するクラツチ切り位置
保持溝とを、レバー揺動案内用ブラケツトに連通
形成してあるトラクタのクラツチ・ブレーキ連動
操作装置に関する。[Detailed Description of the Invention] The present invention is designed to prevent inertial operation caused by stopping the operation of a drive working device such as a rotary tiller.
The clutch and brake, which are interposed in the power transmission shaft to the drive working device, are constructed so that they can be operated in conjunction with one operation lever. A clutch and a brake interposed in a common transmission mechanism are attached to the operating lever of the
When the lever is rocked to the clutch disengaged position, the brake is operated for braking, and when the lever is rocked to the clutch engaged position, the brake is operated to release the brake. At the same time, the lever is provided with a locking operation member that is movable only along its longitudinal direction.
an arcuate guide which is attached to and biased to move in a direction and guides a lock piece protruding from the operating member in a state where the operating lever moves in and out of the clutch in a swinging range in a state where it resists the movement biasing force; a groove, and a clutch which, when the operating lever is swung to the clutch disengaged position, is fitted and moved in the movement biasing direction by the movement biasing force to restrict the swinging of the lever in the clutch engagement direction. The present invention relates to a clutch/brake interlock operating device for a tractor, in which a cutting position holding groove is formed in communication with a lever swing guide bracket.
上記構成の装置においては、前記操作レバーを
クラツチ切り位置に揺動操作したとき、前記ロツ
ク片が自動的に前記の保持溝内に嵌入移動するこ
とになるため、クラツチ切り、ならびに、ブレー
キ制動状態が保持され、前記操作レバーを誤まつ
て、或いは、不測にクラツチ入り方向に揺動させ
てしまう事態を一応避け得る構成にはなつている
もののその状態で誤まつて、或いは、不測に前記
操作部材を付勢力に抗して押し操作すると、前記
ロツク片がダイレクトに前記円弧状ガイド溝内に
移行し、その結果、通常入り付勢されているクラ
ツチの付勢力によつて操作レバーがクラツチ入り
方向に不測に揺動して、クラツチ入り状態、或い
は、ブレーキが制動解除される状態となり、種々
の危険を招く恐れがあつた。つまり、従来のもの
では、クラツチ切り・ブレーキ制動状態の保持が
不確実、不安定なものであつた。 In the device configured as described above, when the operating lever is swung to the clutch disengaged position, the lock piece automatically moves into the retaining groove, so that the clutch is disengaged and the brake is not applied. Although the structure is designed to prevent the operation lever from being held in place and the operation lever being erroneously swung in the clutch engagement direction, if the operation lever is erroneously held in that state or the operation lever is When the member is pushed against the biasing force, the lock piece moves directly into the arc-shaped guide groove, and as a result, the operating lever is engaged by the biasing force of the clutch, which is normally biased into the clutch. The brake may unexpectedly swing in the direction causing the clutch to be engaged or the brake to be released, which could lead to various dangers. In other words, with the conventional brake system, the clutch disengagement and brake braking state were uncertain and unstable.
本考案は、かかる実情に鑑み、前記ブラケツト
に形成の溝に対する極く簡単な改良をもつて、前
述のクラツチ切り・ブレーキ制動作動状態の保持
を確実かつ安定の良いものにせんとする点に目的
を有する。 In view of the above-mentioned circumstances, the object of the present invention is to make the above-mentioned clutch disengagement and brake braking operating state reliably and stably maintained by making an extremely simple improvement to the groove formed in the bracket. has.
本考案によるトラクタのクラツチ・ブレーキ連
動操作装置は、冒記構成のものにおいて、前記ブ
ラケツトに、前記クラツチ切り位置保持溝に連通
する状態で、前記操作レバーのクラツチ切り領域
内でそのレバーの揺動方向に向かう溝を形成して
ある事を特徴とする。 The clutch/brake interlock operation device for a tractor according to the present invention has the above structure, and the lever is pivoted within the clutch disengagement area of the operating lever in a state in which the bracket communicates with the clutch disengagement position holding groove. It is characterized by having grooves facing in the direction.
即ち、前記操作レバーをクラツチ切り位置に揺
動操作したときに、前記保持溝内に自動的に嵌入
移動するロツク片を、前記操作レバーのクラツチ
入り方向への僅かな戻し揺動操作によつてクラツ
チは切り状態にしたままで前記のレバー揺動方向
に向かう溝内に移入させることができるから、こ
の状態、つまり、クラツチ切り・ブレーキ制動作
動状態で、前記操作部材を誤まつて、或いは不測
に押し操作することがあつても、前記ロツク片は
その溝縁に強く押し付けられるだけであつて、こ
れが円弧状ガイド溝に移行することを阻止するこ
とができる。換言すると、本考案装置によれば、
クラツチ切り・ブレーキ制動作動状態において、
前記操作レバーの揺動操作および前記操作部材に
対する押し操作といつた二種の異なる操作が行な
われない限り、クラツチの切り操作が行なえない
構成となつており、そのような二種の異なる操作
が不測に行なわれる可能性は皆無に等しく、従つ
て、クラツチ切り・ブレーキ制動作動状態の保持
が確実かつ安定の良いものになり、無意識操作等
による危険事態の発生を確実に防止でき、しか
も、ブラケツトに形成の溝に対する極く簡単な改
良をもつて所期の安全効果を達成できるに至つた
のである。 That is, when the operating lever is swung to the clutch disengaged position, the lock piece that automatically moves into the holding groove can be moved by slightly swinging the operating lever back in the clutch engagement direction. Since the clutch can be moved into the groove facing the lever swinging direction while the clutch is in the disengaged state, in this state, that is, in the clutch disengagement/brake braking operation state, there is no possibility that the operating member may be accidentally inserted or Even if a push operation is performed, the lock piece is only strongly pressed against the groove edge, and this can be prevented from moving into the arcuate guide groove. In other words, according to the device of the present invention,
In the clutch disengagement/brake braking operation state,
The clutch is configured such that the clutch cannot be disengaged unless two different operations are performed, such as a swinging operation of the operating lever and a pushing operation of the operating member. There is almost no possibility that this will happen unexpectedly, so the clutch disengagement and brake braking operation can be maintained reliably and stably, and dangerous situations caused by unconscious operation can be reliably prevented. It was possible to achieve the desired safety effect by making an extremely simple improvement to the groove formed in the groove.
次に、本考案の実施例を図面に基づいて詳述す
ると、第1図で示すように、、エンジン10から、
変速機構やデフ機構等の車輪13への伝動機構を
内装するトランスミツシヨンケース11にかけ
て、両者10,11間に亘る筒状ケース20内で
内外二重構造の伝動軸5及び12を架設し、その
うち、外側伝動軸12を前記車輪13への伝動機
構に連動連結するとともに、内側伝動軸5を変速
機構5Aを介して、機体後方に突出する動力取出
し軸14に連動連結し、この動力取出し軸14に
対する共通の伝動機構であるところの、前記内側
伝動軸5の前端近くの筒状ケース20内とトラン
スミツシヨンケース11内とにクラツチ3および
ブレーキ4を介装したトラクタにおいて、前記ク
ラツチ3およびブレーキ4に対する操作装置を次
のように構成する。 Next, an embodiment of the present invention will be described in detail based on the drawings. As shown in FIG. 1, from the engine 10,
Over a transmission case 11 that houses a transmission mechanism to wheels 13 such as a transmission mechanism and a differential mechanism, a transmission shaft 5 and 12 with a double structure of inside and outside is installed in a cylindrical case 20 extending between both 10 and 11, Of these, the outer power transmission shaft 12 is interlocked and connected to the transmission mechanism for the wheels 13, and the inner power transmission shaft 5 is interlocked and connected to the power take-off shaft 14 that protrudes toward the rear of the aircraft body via the transmission mechanism 5A. In a tractor in which a clutch 3 and a brake 4 are interposed in a cylindrical case 20 near the front end of the inner transmission shaft 5 and in a transmission case 11, which are a common transmission mechanism for the The operating device for the brake 4 is configured as follows.
第2図の如く前記トランスミツシヨンケース1
1の上部後方寄り位置に装備した運転席15の前
方位置に、側面視が三角形状で箱筒型のブラケツ
ト9を固着し、このブラケツト9内の後部寄り位
置に設けた横軸1周りに上下揺動自在に枢着の1
本の筒型操作レバー2の基端部材2Aと前記クラ
ツチ3およびブレーキ4の各操作片3Aおよび4
Aとを、前記レバー2がクラツチ切り位置、つま
り、上方に揺動操作されたときブレーキ4が制動
作動され、かつ、前記レバー2がクラツチ入り位
置、つまり、下方に揺動操作されたとき、ブレー
キ4が制動解除作動される関係の連動状態にある
べく、ロツド16、および、揺動アーム17、ロ
ツド18を介して夫々連係させるとともに、前記
操作レバー2の内部に、それの長手方向にのみ沿
つて移動自在な軸様のロツク用操作部材6を挿嵌
保持させ、これをスプリング19を介して1方
向、つまり、その先端の手指操作部6A(通称ノ
ブ)が外方に突出する方向に移動付勢させ、か
つ、前記操作部材6の他端近くからは横両側方に
向けてピン状のロツク片7を突設する。一方、前
記のレバー揺動案内用ブラケツト9の両側板部に
は、第3図で明示したように、前記操作レバー2
のクラツチ3に対する入り切り揺動範囲において
は前記ロツク片7を前記スプリング19による移
動付勢力に抗した状態に係止保持してこのロツク
片7の移動を案内する、前記横軸1周りで円弧状
のガイド溝8Aと前記レバー2がクラツチ切り位
置に揺動操作されたとき、前記スプリング19に
よる移動付勢力によつて前記ロツク片7をその移
動付勢方向に自動的に嵌入移動させて前記レバー
2のクラツチ入り方向への揺動を規制するクラツ
チ切り位置保持溝8Bとを連通状態に形成する。
而して、前記ブラケツト9に、前記クラツチ切り
位置保持溝8Bの端部から前記レバー2のクラツ
チ切り領域内でそのレバー2揺動方向に向けて別
の溝8Cを連通形成したものである。 As shown in Figure 2, the transmission case 1
A box-cylindrical bracket 9 with a triangular side view is fixed to the front position of the driver's seat 15, which is installed at the upper rear position of the driver's seat 1. 1 with pivotable pivoting
The base end member 2A of the cylindrical operating lever 2 and the operating pieces 3A and 4 of the clutch 3 and brake 4.
A, when the lever 2 is in the clutch disengaged position, that is, when it is swung upwardly, the brake 4 is operated for braking, and when the lever 2 is in the clutched position, that is, swung downwardly, In order for the brake 4 to be in an interlocked state in which the brake is released, the levers are connected via the rod 16, the swing arm 17, and the rod 18. A shaft-like locking operation member 6 that is movable along the axis is inserted and held, and is held in one direction via a spring 19, that is, in the direction in which the finger operation part 6A (commonly known as a knob) at the tip thereof protrudes outward. The operating member 6 is urged to move, and a pin-shaped locking piece 7 is provided protruding from near the other end of the operating member 6 toward both sides. On the other hand, as clearly shown in FIG.
In the rocking range for engaging and closing the clutch 3, the lock piece 7 is locked and held in a state that resists the movement biasing force of the spring 19, and the movement of the lock piece 7 is guided. When the guide groove 8A and the lever 2 are swung to the clutch disengaged position, the lock piece 7 is automatically fitted and moved in the biasing direction by the biasing force of the spring 19, and the lever 2 is formed in communication with a clutch disengagement position holding groove 8B that restricts rocking in the clutch engagement direction.
Thus, another groove 8C is formed in the bracket 9 so as to communicate with the end of the clutch disengagement position holding groove 8B within the clutch disengagement area of the lever 2 in the direction in which the lever 2 swings.
従つて、前記操作レバー2を第3図実線で示す
ようなクラツチ入り位置から第3図一点鎖線で示
すようなクラツチ切り位置に揺動操作すると、前
記ロツク片7が前記保持溝8B内に自動的に嵌入
移動する。この状態から前記レバー2を横軸1周
りで第3図二点鎖線で示す如く、クラツチ入り方
向に揺動させると、前記ロツク片7が前記の別の
溝8C内に入り込むことになり、クラツチ切り・
ブレーキ制動作動状態が確実に保持されるに至
る。そして、このクラツチ切り保持状態からクラ
ツチ入りに操作するときは、前記レバー2を先
ず、前記ロツク片7が前記保持溝8B内に移入す
るまで揺動し、次いで、手指操作部6Aを押圧し
て操作部材6をスプリング19に抗して、前記ロ
ツク片7が前記円弧状ガイド溝8A内に移入する
まで(第3図一点鎖線の状態)移動させた上、横
軸1周りを下方に向けて揺動操作することによ
り、クラツチ3を入り作動させ、かつ、ブレーキ
4を制動解除作動させ得るのである。 Therefore, when the operating lever 2 is swung from the clutch engaged position shown by the solid line in FIG. 3 to the clutch disengaged position shown by the dashed line in FIG. move inwardly. From this state, when the lever 2 is swung around the horizontal axis 1 in the direction of engaging the clutch, as shown by the two-dot chain line in FIG. Cut/
The braking operation state is reliably maintained. When operating the clutch from the clutch disengagement holding state to the clutch engagement state, the lever 2 is first swung until the lock piece 7 moves into the holding groove 8B, and then the finger operation part 6A is pressed. The operating member 6 is moved against the spring 19 until the lock piece 7 is moved into the arcuate guide groove 8A (the state shown by the dashed line in FIG. 3), and then the horizontal axis 1 is turned downward. By performing the rocking operation, the clutch 3 can be engaged and the brake 4 can be released.
図面は本考案に係るトラクタのクラツチ・ブレ
ーキ連動操作装置の実施例を示し、第1図はトラ
クタの全体側面図、第2図は要部の拡大概略側面
図、第3図は操作レバー部の一部切欠き拡大側面
図、第4図は第3図−線での縦断面図であ
る。
1……横軸、2……操作レバー、3……クラツ
チ、4……ブレーキ、5……伝動機構、6……ロ
ツク用操作部材、7……ロツク片、8A……円弧
状ガイド溝、8B……クラツチ切り位置保持溝、
8C……別の溝、9……ブラケツト。
The drawings show an embodiment of the clutch/brake interlocking operation device for a tractor according to the present invention, in which Fig. 1 is an overall side view of the tractor, Fig. 2 is an enlarged schematic side view of the main parts, and Fig. 3 is an illustration of the operating lever section. FIG. 4 is a partially cutaway enlarged side view, and FIG. 4 is a vertical sectional view taken along the line of FIG. 3. DESCRIPTION OF SYMBOLS 1... Horizontal shaft, 2... Operation lever, 3... Clutch, 4... Brake, 5... Transmission mechanism, 6... Lock operation member, 7... Lock piece, 8A... Arc-shaped guide groove, 8B...Clutch disengagement position holding groove,
8C...Another groove, 9...Bracket.
Claims (1)
に、共通の伝動機構5中に介装したクラツチ3
とブレーキ4とを、前記レバー2がクラツチ3
の切り位置に揺動操作されたとき、ブレーキ4
が制動作動され、かつ、前記レバー2がクラツ
チ3の入り位置に揺動操作されたとき、ブレー
キ4が制動解除作動される連動状態に連係させ
るとともに、前記レバー2に、それの長手方向
に沿つてのみ移動自在なロツク用操作部材6を
1方向に移動付勢した状態に付設し、この操作
部材6から突設のロツク片7を前記操作レバー
2のクラツチ3に対する入り切り揺動範囲にお
いては前記の移動付勢力に抗した状態で移動案
内する円弧状のガイド溝8Aと、前記操作レバ
ー2がクラツチ3の切り位置に揺動された時、
前記の移動付勢力によつてその移動付勢方向に
嵌入移動させて前記レバー2のクラツチ入り方
向への揺動を規制するクラツチ切り位置保持溝
8Bとを、レバー揺動案内用ブラケツト9に連
通形成してあるトラクタのクラツチ・ブレーキ
連動操作装置において、前記ブラケツト9に、
前記クラツチ切り位置保持溝8Bに連通する状
態で、前記操作レバー2のクラツチ切り領域内
でそのレバー2の揺動方向に向かう溝8Cを形
成してある事を特徴とするトラクタのクラツ
チ・ブレーキ連動操作装置。 前記共通伝動機構5が動力取出し軸14に対
する伝動機構である実用新案登録請求の範囲第
項に記載のトラクタのクラツチ・ブレーキ連
動操作装置。[Scope of claim for utility model registration] One operating lever 2 that can freely swing around the horizontal axis 1
, a clutch 3 interposed in a common transmission mechanism 5
and the brake 4, and the lever 2 engages the clutch 3.
When the brake 4 is swung to the cut position,
When the lever 2 is operated for braking and the lever 2 is swung to the engagement position of the clutch 3, the brake 4 is linked to the interlocked state in which the brake is released and the lever 2 is moved along its longitudinal direction. A locking operation member 6, which is movable in one direction and biased, is attached, and a locking piece 7 protruding from the operation member 6 is moved within the range of swinging of the operating lever 2 relative to the clutch 3. When the operating lever 2 is swung to the disengaged position of the clutch 3,
A clutch disengagement position holding groove 8B, which is inserted and moved in the movement urging direction by the movement urging force to restrict the swinging of the lever 2 in the clutch engagement direction, is communicated with the lever swing guide bracket 9. In the tractor clutch/brake interlock operation device, the bracket 9 includes:
Clutch-brake interlocking for a tractor, characterized in that a groove 8C is formed within the clutch disengagement area of the operating lever 2 in a state communicating with the clutch disengagement position holding groove 8B and directed in the swinging direction of the lever 2. Operating device. A clutch/brake interlock operating device for a tractor according to claim 1, wherein the common transmission mechanism 5 is a transmission mechanism for a power take-off shaft 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8440480U JPS6330578Y2 (en) | 1980-06-16 | 1980-06-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8440480U JPS6330578Y2 (en) | 1980-06-16 | 1980-06-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS578132U JPS578132U (en) | 1982-01-16 |
JPS6330578Y2 true JPS6330578Y2 (en) | 1988-08-16 |
Family
ID=29446695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8440480U Expired JPS6330578Y2 (en) | 1980-06-16 | 1980-06-16 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6330578Y2 (en) |
-
1980
- 1980-06-16 JP JP8440480U patent/JPS6330578Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS578132U (en) | 1982-01-16 |
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