JPH11304025A - Plug slip-off stop structure of hydraulic valve - Google Patents
Plug slip-off stop structure of hydraulic valveInfo
- Publication number
- JPH11304025A JPH11304025A JP10505898A JP10505898A JPH11304025A JP H11304025 A JPH11304025 A JP H11304025A JP 10505898 A JP10505898 A JP 10505898A JP 10505898 A JP10505898 A JP 10505898A JP H11304025 A JPH11304025 A JP H11304025A
- Authority
- JP
- Japan
- Prior art keywords
- key
- plug
- valve
- valve body
- valve hole
- 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.)
- Granted
Links
Landscapes
- Sliding Valves (AREA)
- Safety Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Details Of Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は油圧弁のプラグ抜け
止め構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug for retaining a hydraulic valve.
【０００２】[0002]
【従来の技術】本出願人は、バルブスティックが発生し
てもキーの外れを防止してプラグの脱落を防止できる油
圧弁のプラグ抜け止め構造を提案した（実開平４−９７
１７３号公報）。この構造は、図１のように、プラグ１
の中間部に周溝部２を設け、バルブボデー３には外部か
らバルブ穴４に対して直交方向にキー６を挿入するため
の開口部５を形成する一方、キー６には、プラグ１の周
溝部２に入り込みかつバルブ穴４の内面に係止可能な係
止部６ａと、周溝部２の溝底の軸部２ａを跨ぐように弾
性嵌合する一対の保持部６ｂと、係止部６ａの後端側か
ら折曲され、開口部５内面に当接する当接部６ｃとを形
成したものである。2. Description of the Related Art The applicant of the present invention has proposed a structure for retaining a plug of a hydraulic valve which can prevent the key from coming off even if a valve stick occurs and prevent the plug from falling off.
No. 173). This structure, as shown in FIG.
A peripheral groove 2 is provided at an intermediate portion of the valve body 3, and an opening 5 for inserting a key 6 from the outside in a direction orthogonal to the valve hole 4 is formed in the valve body 3. A locking portion 6a that enters the groove portion 2 and can be locked to the inner surface of the valve hole 4, a pair of holding portions 6b elastically fitted so as to straddle the shaft portion 2a at the bottom of the peripheral groove portion 2, and a locking portion 6a And a contact portion 6c that is bent from the rear end side and contacts the inner surface of the opening 5.
【０００３】上記油圧弁の場合、バルブボデー３のバル
ブ穴４にスプリング７と弁体８とを挿入し、その端部に
プラグ１を挿入する。そして、プラグ１を押し込んだ状
態で直交方向からキー６をバルブボデー３の開口部５に
差し込むと、キー６の保持部６ｂがプラグ１の軸部２ａ
に節度感を持って弾性嵌合する。ここでプラグ１への押
圧力を解除すると、スプリング力でプラグ１は押され、
当接部６ｃの両面がバルブボデー３とプラグ１とで挟持
されることによってキー６は保持され、プラグ１が抜け
止めされる。In the case of the above hydraulic valve, a spring 7 and a valve body 8 are inserted into a valve hole 4 of a valve body 3, and a plug 1 is inserted into an end thereof. When the key 6 is inserted into the opening 5 of the valve body 3 in an orthogonal direction while the plug 1 is pushed in, the holding portion 6b of the key 6 is moved to the shaft portion 2a of the plug 1.
Elastically fit with a sense of moderation. Here, when the pressing force on the plug 1 is released, the plug 1 is pressed by the spring force,
The key 6 is held by sandwiching both surfaces of the contact portion 6c between the valve body 3 and the plug 1, and the plug 1 is prevented from coming off.
【０００４】[0004]
【発明が解決しようとする課題】上記構造の油圧弁の場
合、正常な組付状態では、図１のように内圧がかかった
時のプラグ１の抜けを、キー６の当接部６ｃを開口部５
の内縁に当てることにより防止している。ところが、図
２のようにキー６が浮き上がった状態であれば、剪断力
がキー６の係止部６ａと当接部６ｃとの曲げ部Ｒにかか
るため、キー６の耐久性低下を招くという問題があっ
た。つまり、Ｒ部分を延ばす方向の繰り返し荷重がかか
り、破断する可能性があるからである。In the case of the hydraulic valve having the above-described structure, when the internal pressure is applied, as shown in FIG. Part 5
It is prevented by hitting the inner edge of However, if the key 6 is in a floating state as shown in FIG. 2, a shearing force is applied to the bent portion R between the locking portion 6a and the contact portion 6c of the key 6, and the durability of the key 6 is reduced. There was a problem. That is, a repeated load in the direction in which the R portion is extended is applied, and there is a possibility of breaking.
【０００５】図２のように浮き上がった状態となるの
は、図３のようにキー６を斜めに組み込んだり、あるい
はキー６を正常に組み込んだ後、当接部６ｃに前方への
荷重Ｆを作用させると、保持部６ｂが軸部２ａの最大径
部に乗り上げ、キー６が斜め状態で保持される。この状
態でプラグ１に内圧がかかると、保持部６ｂの後端（Ｃ
点）を支点としてキー６が右回り方向に回転するためで
あると考えられる。したがって、たとえキー６を斜めに
組み込んでも、キー６が浮き上がらないように工夫する
必要がある。[0005] As shown in FIG. 2, the state in which the key F is lifted up is that the key 6 is installed diagonally as shown in FIG. 3, or after the key 6 is normally installed, a forward load F is applied to the contact portion 6 c. When actuated, the holding portion 6b rides on the largest diameter portion of the shaft portion 2a, and the key 6 is held in an oblique state. When an internal pressure is applied to the plug 1 in this state, the rear end (C
It is considered that this is because the key 6 rotates clockwise with the point () as a fulcrum. Therefore, it is necessary to take measures to prevent the key 6 from rising even if the key 6 is installed diagonally.
【０００６】そこで、本発明の目的は、キーを斜めに組
み込んでも、キーが浮き上がるのを確実に防止でき、キ
ーの耐久性の向上を図る油圧弁のプラグ抜け止め構造を
提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a structure for preventing a key from being unplugged from a hydraulic valve, which can reliably prevent the key from floating even when the key is installed at an angle, thereby improving the durability of the key.
【０００７】[0007]
【課題を解決するための手段】上記目的は請求項１に記
載の発明によって達成される。すなわち、この発明は、
バルブボデーに弁体を摺動自在に案内するバルブ穴が設
けられ、このバルブ穴の一端部がプラグで封止されると
ともに、プラグに対しバルブ穴から脱出方向への内圧が
作用するように構成され、上記プラグの中間部には周溝
部が設けられ、バルブボデーには外部からバルブ穴に対
して直交方向にキーを挿入するための開口部が形成さ
れ、このキーには、上記プラグの周溝部に入り込みかつ
バルブ穴の内面に係止可能な係止部と、上記周溝部の溝
底の軸部を跨ぐように弾性嵌合する一対の保持部と、上
記係止部の後端側から折曲され、バルブボデーの開口部
内面に当接する当接部とが設けられた油圧弁において、
上記保持部後縁には先端が当接部後端を越えない突出部
が設けられ、上記保持部を上記周溝部の溝底の軸部に嵌
合させた状態で、キーを傾けた時に上記保持部が軸部の
最大径部に乗り上げないように上記突出部から上記係止
部前端までの距離Ｌを設定したことを特徴とする油圧弁
のプラグ抜け止め構造である。The above object is achieved by the present invention. That is, the present invention
A valve hole is provided in the valve body for slidably guiding the valve body. One end of the valve hole is sealed with a plug, and an internal pressure acts on the plug in a direction to escape from the valve hole. A peripheral groove is provided at an intermediate portion of the plug, and an opening for inserting a key from the outside in a direction orthogonal to the valve hole is formed in the valve body. A locking portion that enters the groove portion and can be locked to the inner surface of the valve hole, a pair of holding portions elastically fitted so as to straddle the shaft portion at the groove bottom of the peripheral groove portion, and a rear end side of the locking portion. A hydraulic valve provided with an abutting portion that is bent and abuts against the inner surface of the opening of the valve body;
A protrusion is provided at the rear edge of the holding portion so that the tip does not exceed the rear end of the contact portion.When the key is tilted with the holding portion fitted to the shaft portion at the groove bottom of the peripheral groove portion, A plug removal prevention structure for a hydraulic valve, wherein a distance L from the protruding portion to the front end of the locking portion is set so that the holding portion does not ride on the maximum diameter portion of the shaft portion.
【０００８】上記構造のキーを開口部からプラグの軸部
に対して斜めに組み込もうとすると、突出部が周溝の内
側面に当たり、係止部の前端が軸部に当たるので、キー
が一定角度以上傾くのを防止できる。つまり、突出部の
作用によってキーの傾きを保持部が軸部の最大径部に乗
り上げない角度に規制するので、キーの浮き上がりを確
実に防止できる。したがって、剪断力がキーの係止部と
当接部との曲げ部にかかる恐れがなく、キーの耐久性低
下を防止できる。When the key having the above structure is to be assembled obliquely with respect to the shaft of the plug from the opening, the protrusion contacts the inner surface of the circumferential groove, and the front end of the locking portion contacts the shaft. It can be prevented from tilting more than an angle. That is, the inclination of the key is restricted by the action of the protruding portion to an angle at which the holding portion does not ride on the maximum diameter portion of the shaft portion, so that the key can be reliably prevented from floating. Therefore, there is no possibility that a shearing force is applied to the bent portion between the locking portion and the contact portion of the key, and it is possible to prevent a decrease in the durability of the key.
【０００９】[0009]
【発明の実施の形態】図４は本発明を自動変速機のタイ
ミング弁に適用した一例を示す。バルブボデー１０には
バルブ穴１０ａが形成されており、このバルブ穴１０ａ
に弁体１１が摺動自在に収容されている。バルブ穴１０
ａの開放端部にはプラグ１２が嵌合され、このプラグ１
２でバルブ穴１０ａの一端が封止されている。上記弁体
１１とプラグ１２との間にはスプリング１３が配置さ
れ、弁体１１は右方へ、プラグ１２は左方へそれぞれ付
勢されている。バルブボデー１０には４個のポート１４
〜１７が形成され、右端の信号ポート１４に油圧が入力
されない状態では、弁体１１はスプリング１３によって
右端位置にあり、ポート１５，１６を連通させ、ポート
１７を閉じている。一方、右端の信号ポート１４に油圧
が入力されると、弁体１１はスプリング１３に抗して左
端位置に移動し、ポート１６，１７を連通させ、ポート
１５を閉じる。FIG. 4 shows an example in which the present invention is applied to a timing valve of an automatic transmission. The valve body 10 has a valve hole 10a formed therein.
The valve body 11 is slidably housed in the housing. Valve hole 10
a plug 12 is fitted to the open end of the plug 1a.
2, one end of the valve hole 10a is sealed. A spring 13 is disposed between the valve body 11 and the plug 12, and the valve body 11 is urged rightward and the plug 12 is urged leftward. The valve body 10 has four ports 14
When no oil pressure is input to the rightmost signal port 14, the valve body 11 is at the rightmost position by the spring 13, the ports 15 and 16 are communicated, and the port 17 is closed. On the other hand, when hydraulic pressure is input to the rightmost signal port 14, the valve body 11 moves to the leftmost position against the spring 13, connects the ports 16 and 17, and closes the port 15.
【００１０】弁体１１には斜め方向の連通穴１１ａが形
成されており、ポート１６の油圧と同一油圧がスプリン
グ１３を収容した室１８に導かれている。したがって、
弁体１１とプラグ１２は、スプリング１３のばね力とこ
の油圧との合力（内圧）によって相反方向に付勢され
る。A communication hole 11 a in an oblique direction is formed in the valve body 11, and the same oil pressure as the oil pressure of the port 16 is guided to a chamber 18 containing a spring 13. Therefore,
The valve body 11 and the plug 12 are urged in opposite directions by a combined force (internal pressure) of the spring force of the spring 13 and the oil pressure.
【００１１】プラグ１２は中間部に周溝部１２ａを有し
ており、この周溝部１２ａの溝底に軸部１２ｂが形成さ
れている。プラグ１２の一端側には、弁体１１の左端部
１１ｂを収容する凹部１２ｃが形成されており、この凹
部１２ｃは軸心部に設けたドレーン穴１２ｄを介して外
部へ連通している。バルブボデー１０のプラグ１２と対
応する部位には、外部とバルブ穴１０ａとを連通する開
口部１９が形成され、この開口部１９から板金製のキー
２０がプラグ１２の周溝部１２ａに対して直交方向より
挿入されている。The plug 12 has a peripheral groove 12a at an intermediate portion, and a shaft 12b is formed at the bottom of the peripheral groove 12a. On one end side of the plug 12, a concave portion 12c for accommodating the left end portion 11b of the valve body 11 is formed, and this concave portion 12c communicates with the outside through a drain hole 12d provided in a shaft center portion. An opening 19 for communicating the outside with the valve hole 10 a is formed in a portion of the valve body 10 corresponding to the plug 12, and a key 20 made of sheet metal is orthogonal to the peripheral groove 12 a of the plug 12 through the opening 19. It is inserted from the direction.
【００１２】図５に示すように、キー２０の一端部には
バルブ穴１０ａの内面に係止される係止部２１が設けら
れており、この係止部２１の両側部には下方に向かって
直角に折曲された一対の保持部２２が形成されている。
また、キー２０の他端部には、係止部２１の後端側から
直角に折曲された当接部２３が設けられ、この当接部２
３はバルブボデー１０の開口部１９から外部へ突出して
いる。なお、当接部２３の先端には、手で持ちやすいよ
うに内側へ２回折り曲げられた把手部２５が設けられて
いる。As shown in FIG. 5, a locking portion 21 is provided at one end of the key 20 to be locked to the inner surface of the valve hole 10a. A pair of holding parts 22 bent at right angles are formed.
The other end of the key 20 is provided with a contact portion 23 that is bent at a right angle from the rear end side of the locking portion 21.
3 protrudes outside from the opening 19 of the valve body 10. At the tip of the contact portion 23, a handle portion 25 bent inward twice is provided so as to be easily held by hand.
【００１３】保持部２２は板厚方向にばね性を有してお
り、自由状態において先端部の間隔Ｓが軸部１２ｂの最
大径Ｄより幅狭になるように内側へ傾斜している。その
ため、保持部２２を軸部１２ｂに嵌合させると、保持部
２２が軸部１２ｂに節度感を持って弾性嵌合し、キー２
０がプラグ１２から外れるのを防止できる。保持部２２
の先端部後縁には後端が当接部２３の後面を越えない範
囲の突出部２４が設けられている。突出部２４の後端と
当接部２３の後面との距離δはできるだけ小さい方が望
ましい。突出部２４から係止部２１前端までの距離Ｌ
は、保持部２２を軸部１２ｂに嵌合させた状態で、キー
２０を傾けた時に保持部２２が軸部１２ｂの最大径部に
乗り上げないように設定されている。なお、当然なが
ら、距離Ｌとδとの和は、周溝１２ａの溝幅Ｍより小さ
い。The holding portion 22 has a spring property in the plate thickness direction, and is inclined inward so that the interval S between the tip portions becomes narrower than the maximum diameter D of the shaft portion 12b in the free state. Therefore, when the holding portion 22 is fitted to the shaft portion 12b, the holding portion 22 is elastically fitted to the shaft portion 12b with a sense of moderation, and the key 2
0 can be prevented from coming off the plug 12. Holder 22
A protruding portion 24 is provided at the rear edge of the front end portion of the rear portion so that the rear end does not exceed the rear surface of the contact portion 23. It is desirable that the distance δ between the rear end of the protruding portion 24 and the rear surface of the contact portion 23 be as small as possible. Distance L from protrusion 24 to front end of locking portion 21
Is set so that when the key 20 is tilted while the holding portion 22 is fitted to the shaft portion 12b, the holding portion 22 does not ride on the maximum diameter portion of the shaft portion 12b. Note that, naturally, the sum of the distance L and δ is smaller than the groove width M of the peripheral groove 12a.
【００１４】ここで、上記構造のキー２０の浮き上がり
防止作用について説明する。上記キー２０をプラグ１２
に斜めに嵌合したり、正常に嵌合した後でキー２０に斜
め方向の力Ｆを加えると、図６のようにキー２０の突出
部２４が周溝１２ａの側面に当たり、係止部２１の前端
が軸部１２ｂに当たる。そのため、キー２０の傾きが抑
制され、保持部２２が軸部１２ｂの最大径部に乗り上げ
ない。この状態で内圧がプラグ１２に作用しても、保持
部２２は軸部１２ｂに深く嵌合した状態で安定し、キー
２０の浮き上がりが防止される。したがって、従来例
（図２参照）のように剪断力がキー２０の係止部２１と
当接部２３との曲げ部にかかることがなく、当接部２３
で受けることができ、キー２０の耐久性低下を防止でき
る。Here, the action of preventing the key 20 having the above structure from rising will be described. Insert the key 20 into the plug 12
When a diagonal force F is applied to the key 20 after the key 20 has been fitted obliquely or when the key 20 is normally fitted, the protruding portion 24 of the key 20 hits the side surface of the circumferential groove 12a as shown in FIG. Corresponds to the shaft portion 12b. Therefore, the inclination of the key 20 is suppressed, and the holding portion 22 does not ride on the maximum diameter portion of the shaft portion 12b. Even if the internal pressure acts on the plug 12 in this state, the holding portion 22 is stable in a state of being fitted deeply into the shaft portion 12b, and the key 20 is prevented from floating. Therefore, unlike the conventional example (see FIG. 2), the shearing force is not applied to the bent portion between the locking portion 21 of the key 20 and the contact portion 23, and the contact portion 23
And the durability of the key 20 can be prevented from lowering.
【００１５】なお、上記実施例ではタイミング弁に適用
した例を示したが、これに限るものではなく、図１のよ
うなリリーフ弁、レギュレータ弁，モジュレータ弁，ス
ロットル弁，ガバナ弁等のあらゆる油圧弁に適用でき
る。また、プラグに対し作用する内圧は、スプリング力
によって与えてもよいし、油圧によって与えてもよい。In the above-described embodiment, an example in which the present invention is applied to a timing valve is shown. However, the present invention is not limited to this, and all hydraulic pressures such as a relief valve, a regulator valve, a modulator valve, a throttle valve, and a governor valve as shown in FIG. Applicable to valves. The internal pressure acting on the plug may be given by a spring force or may be given by a hydraulic pressure.
【００１６】[0016]
【発明の効果】以上の説明で明らかなように、本発明に
よれば、キーの保持部後縁に突出部を形成し、保持部を
プラグの軸部に嵌合させた状態で、キーを傾けた時に保
持部が軸部の最大径部に乗り上げないように突出部から
係止部前端までの距離Ｌを設定したので、キーの浮き上
がりが防止される。したがって、プラグの抜け方向の力
を当接部で受けることができ、キーの耐久性低下を防止
できる。As is apparent from the above description, according to the present invention, a projection is formed on the trailing edge of the holding portion of the key, and the key is held in a state where the holding portion is fitted to the shaft portion of the plug. Since the distance L from the projecting portion to the front end of the locking portion is set so that the holding portion does not ride on the maximum diameter portion of the shaft portion when tilted, the key is prevented from floating. Therefore, the force in the direction in which the plug is removed can be received by the contact portion, and the durability of the key can be prevented from lowering.
【図１】従来例の油圧弁の断面図である。FIG. 1 is a sectional view of a conventional hydraulic valve.
【図２】図１の油圧弁のキーが浮き上がった状態の一部
断面図である。FIG. 2 is a partial cross-sectional view of a state where a key of the hydraulic valve of FIG. 1 is lifted.
【図３】図１の油圧弁のキーが斜めになった状態の一部
断面図である。FIG. 3 is a partial cross-sectional view showing a state where keys of the hydraulic valve of FIG. 1 are inclined.
【図４】本発明にかかる油圧弁の一例の断面図である。FIG. 4 is a sectional view of an example of a hydraulic valve according to the present invention.
【図５】本発明にかかるキーの正面図および左側面図で
ある。FIG. 5 is a front view and a left side view of the key according to the present invention.
【図６】本発明にかかるキーの浮き上がり防止作用を示
す断面図である。FIG. 6 is a cross-sectional view showing a function of preventing a key from rising according to the present invention.
１０ バルブボデー １０ａ バルブ穴 １１ 弁体 １２ プラグ １２ａ 周溝部 １２ｂ 軸部 １３ スプリング １９ 開口部 ２０ キー ２１ 係止部 ２２ 保持部 ２３ 当接部 ２４ 突出部 DESCRIPTION OF SYMBOLS 10 Valve body 10a Valve hole 11 Valve body 12 Plug 12a Peripheral groove part 12b Shaft part 13 Spring 19 Opening part 20 Key 21 Lock part 22 Holding part 23 Contact part 24 Projection part
Claims (1)
バルブ穴が設けられ、このバルブ穴の一端部がプラグで
封止されるとともに、プラグに対しバルブ穴から脱出方
向への内圧が作用するように構成され、上記プラグの中
間部には周溝部が設けられ、バルブボデーには外部から
バルブ穴に対して直交方向にキーを挿入するための開口
部が形成され、このキーには、上記プラグの周溝部に入
り込みかつバルブ穴の内面に係止可能な係止部と、上記
周溝部の溝底の軸部を跨ぐように弾性嵌合する一対の保
持部と、上記係止部の後端側から折曲され、バルブボデ
ーの開口部内面に当接する当接部とが設けられた油圧弁
において、上記保持部後縁には先端が当接部後端を越え
ない突出部が設けられ、上記保持部を上記周溝部の溝底
の軸部に嵌合させた状態で、キーを傾けた時に上記保持
部が軸部の最大径部に乗り上げないように上記突出部か
ら上記係止部前端までの距離Ｌを設定したことを特徴と
する油圧弁のプラグ抜け止め構造。The valve body is provided with a valve hole for slidably guiding the valve body. One end of the valve hole is sealed with a plug, and the internal pressure of the plug in the escape direction from the valve hole is provided. The plug is provided with a peripheral groove in the middle part thereof, and an opening for inserting a key from the outside in a direction orthogonal to the valve hole is formed in the valve body. A locking portion that can enter into the peripheral groove of the plug and be locked to the inner surface of the valve hole; a pair of holding portions elastically fitted so as to straddle a shaft at a groove bottom of the peripheral groove; and the locking portion. And a contact portion that is bent from the rear end side and is provided with a contact portion that contacts the inner surface of the opening of the valve body. Provided, the holding portion is fitted to a shaft portion at a groove bottom of the peripheral groove portion. In this state, when the key is tilted, a distance L from the protruding portion to the front end of the locking portion is set so that the holding portion does not ride on the maximum diameter portion of the shaft portion. Construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10505898A JP3343782B2 (en) | 1998-04-15 | 1998-04-15 | Hydraulic valve plug retaining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10505898A JP3343782B2 (en) | 1998-04-15 | 1998-04-15 | Hydraulic valve plug retaining structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11304025A true JPH11304025A (en) | 1999-11-05 |
| JP3343782B2 JP3343782B2 (en) | 2002-11-11 |
Family
ID=14397386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10505898A Expired - Fee Related JP3343782B2 (en) | 1998-04-15 | 1998-04-15 | Hydraulic valve plug retaining structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3343782B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013007424A (en) * | 2011-06-23 | 2013-01-10 | Yanmar Co Ltd | Belt-type continuously variable transmission |
| JP2014173712A (en) * | 2013-03-13 | 2014-09-22 | Nachi Fujikoshi Corp | Hydraulic control device, and inspection device and inspection method therefor |
| US9309952B2 (en) | 2011-06-15 | 2016-04-12 | Yanmar Co., Ltd. | Belt-type continuously variable transmission |
| US9334934B2 (en) | 2010-11-08 | 2016-05-10 | Yanmar Co., Ltd. | Belt type continuously variable transmission |
| CN112253766A (en) * | 2020-09-23 | 2021-01-22 | 刘兴华 | Rubber ball liquid discharge valve of horizontal washing tank |
| CN117588585A (en) * | 2024-01-19 | 2024-02-23 | 成都杰森输配设备实业有限公司 | Trip mechanism of cut-off valve |
-
1998
- 1998-04-15 JP JP10505898A patent/JP3343782B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9334934B2 (en) | 2010-11-08 | 2016-05-10 | Yanmar Co., Ltd. | Belt type continuously variable transmission |
| US9309952B2 (en) | 2011-06-15 | 2016-04-12 | Yanmar Co., Ltd. | Belt-type continuously variable transmission |
| JP2013007424A (en) * | 2011-06-23 | 2013-01-10 | Yanmar Co Ltd | Belt-type continuously variable transmission |
| JP2014173712A (en) * | 2013-03-13 | 2014-09-22 | Nachi Fujikoshi Corp | Hydraulic control device, and inspection device and inspection method therefor |
| CN112253766A (en) * | 2020-09-23 | 2021-01-22 | 刘兴华 | Rubber ball liquid discharge valve of horizontal washing tank |
| CN112253766B (en) * | 2020-09-23 | 2022-11-08 | 铜陵市兴达阀门总厂 | Flat-washing tank rubber ball tapping valve |
| CN117588585A (en) * | 2024-01-19 | 2024-02-23 | 成都杰森输配设备实业有限公司 | Trip mechanism of cut-off valve |
| CN117588585B (en) * | 2024-01-19 | 2024-05-14 | 成都杰森输配设备实业有限公司 | Trip mechanism of cut-off valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3343782B2 (en) | 2002-11-11 |
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