Operating device for control valve
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0402147
(2009-03-11)
|
등록번호 |
US-8468905
(2013-06-25)
|
우선권정보 |
JP-2008-182873 (2008-07-14) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
7 |
초록
▼
An operating device with an operating lever for a control valve includes: an input member connected to the operating lever; an output member connected to a slide spool of the control valve; and a swing link for relaying a displacement of the input member to the output member. The swing link is swing
An operating device with an operating lever for a control valve includes: an input member connected to the operating lever; an output member connected to a slide spool of the control valve; and a swing link for relaying a displacement of the input member to the output member. The swing link is swingable about a swing shaft center on one end and is connected to the input and output members. A latch portion in the swing link is farther than a connecting point with the output member from the swing shaft center. A lock body is switchably operable between a lock position and a release position, and at the lock position, engaged with the latch portion at a neutral position to limit a swing of the swing link about the swing shaft center by which the control valve is locked at a neutral state.
대표청구항
▼
1. An operating device with an operating lever for operating a control valve connected to an actuator comprising: an input member to which an operational displacement of the operating lever is transmitted;an output member connected to a slide spool of the control valve;a swing link configured to rel
1. An operating device with an operating lever for operating a control valve connected to an actuator comprising: an input member to which an operational displacement of the operating lever is transmitted;an output member connected to a slide spool of the control valve;a swing link configured to relay a displacement of the input member to the output member, the swing link being swingable about a swing shaft center defined on one end of the swing link, the swing link comprising: an intermediate portion extending from the swing shaft center, the intermediate portion being connected to the input member and the output member; anda latch portion formed at a free end of an extension from the swing shaft center over the intermediate portion, a distance between the latch portion and the swing shaft center being larger than a distance between the intermediate portion and the swing shaft center; anda lock body slidably operable between a lock position and a release position, the lock body being configured as a sliding body slidably guided between the lock position and the release position by a guide,wherein the lock body has a plate portion having a lock hole defined therein to receive the latch portion;the extension is bent at the intermediate portion and oriented toward an opening of the lock hole in a direction perpendicular to the opening;a swing motion of the swing link about the swing shaft center is limited by engaging the latch portion of the swing link at a neutral position with the lock hole defined in the lock body having slid to the lock position, and the control valve is locked to a neutral state; andthe limitation to the swing motion of the swing link is cancelled by disengaging the latch portion from the lock hole after the lock body is operated to the release position, and the control valve is unlocked from the neutral state. 2. The operating device according to claim 1, wherein the output member is a connecting pin configured to connect the swing link and the slide spool. 3. The operating device according to claim 1, wherein the plate portion extending extends in a direction orthogonal to a sliding direction thereof. 4. An operating device with an operating lever for operating a control valve connected to an actuator comprising: a first input member to which a first operational displacement of the operating lever is transmitted;a second input member to which a second operational displacement of the operating lever is transmitted;a first output member connected to a slide spool of a first control valve;a second output member connected to a slide spool of a second control valve;a first swing link configured to relay a displacement of the first input member to the first output member, the first swing link being swingable about a first swing shaft center defined on one end of the first swing link, the first swing link comprising:a first intermediate portion extending from the first swing shaft center, the first intermediate portion being connected to the first input member and the first output member; anda first latch portion formed at a free end of a first extension from the first swing shaft center over the first intermediate portion, a distance between the first latch portion and the first swing shaft center being larger than a distance between the first intermediate portion and the first swing shaft center;a second swing link configured to relay a displacement of the second input member to the second output member, the second swing link being swingable about a second swing shaft center defined on one end of the second swing link, the second swing link comprising: a second intermediate portion extending from the second swing shaft center, the second intermediate portion being connected to the second input member and the second output member; anda second latch portion formed at a free end of a second extension from the second swing shaft center over the second intermediate portion, a distance between the second latch portion and the second swing shaft center being larger than a distance between the second intermediate portion and the second swing shaft center; anda lock body slidably operable between a lock position and a release position, the lock body being configured as a sliding body slidably guided between the lock position and the release position by a guide,wherein the lock body has a plate portion having a first lock hole defined therein to receive the first latch portion, and a second lock hole defined therein to receive the second latch portion;wherein the first extension is bent at the first intermediate portion and oriented toward an opening of the first lock hole in a direction perpendicular to the opening,a swing motion of the first swing link about the first swing shaft center is limited by engaging the first latch portion of the first swing link at a neutral position with the first lock hole defined in the lock body having slid to the lock position, and the first control valve is locked to a neutral state; andthe limitation to the swing motion of the first swing link is cancelled by disengaging the first latch portion from the first lock hole after the lock body is operated to the release position, and the first control valve is unlocked from the neutral state; andwherein the second extension is bent at the second intermediate portion and oriented toward an opening of the second lock hole in a direction perpendicular to the opening,a swing motion of the second swing link about the second swing shaft center is limited by engaging the second latch portion of the second swing link at a neutral position with the second lock hole defined in the lock body having slid to the lock position, and the second control valve is locked to a neutral state; andthe limitation to the swing motion of the second swing link is cancelled by disengaging the second latch portion from the second lock hole after the lock body is operated to the release position, and the second control valve is unlocked from the neutral state. 5. The operating device according to claim 4, wherein directions of the first operational displacement and the second operational displacement of the operating lever are different. 6. The operating device according to claim 5, wherein directions of the first operational displacement and the second operational displacement of the operating lever are orthogonal to each other. 7. The operating device according to claim 4, wherein the plate portion extends in a direction orthogonal to a sliding direction thereof. 8. The operating device according to claim 4, wherein the first intermediate portion extends orthogonal to the first swing shaft center, the first extension extending in a sliding direction of the lock body; andthe second intermediate portion extends orthogonal to the second swing shaft center, the second extension extending in a sliding direction of the lock body. 9. The operating device according to claim 1, wherein the intermediate portion extends orthogonal to the swing shaft center, the extension extending in a sliding direction of the lock body.
이 특허에 인용된 특허 (7)
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Lumpkins George T. (Katy TX), Adjustable control attachment for an earth moving vehicle.
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Brown David J. (Manchester GB2), Control lever arrangement.
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Kawamura Masahisa,JPX ; Amano Hideki,JPX, Fluid supply assembly for working vehicles.
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Ohashi Ryota (Sakai JPX) Kawamura Masahisa (Amagasaki JPX) Fujisaki Koichiro (Kobe JPX), Fluid supply system for working vehicles.
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McNabb Rex P. (P.O. Box 460879 Garland TX 75046), Frozen beverage dispensing apparatus.
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Hamada Toshihiko (Sakai JPX) Okuda Shiro (Sakai JPX), Hydraulic control apparatus for tractor.
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Ota Singo (Hirakata JPX) Nakagami Hiroshi (Hirakata JPX), Single lever for controlling multiple functions.
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