[특허]Seat actuated fluid drive neutralizing arrangement

[미국특허] Seat actuated fluid drive neutralizing arrangement 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60K-028/00
출원번호	US-0693392 (1976-06-07)
발명자 / 주소	Habiger Cyril W. (Joliet IL)
출원인 / 주소	Caterpillar Tractor Co. (Peoria IL 02)
인용정보	피인용 횟수 : 21 인용 특허 : 0

초록 ▼

A fluid drive arrangement of a vehicle is shiftable to forward and reverse drive conditions when actuating fluid from an auxiliary source of pressurized fluid is directed to a hydraulic actuator device of the fluid drive arrangement and is shifted to a neutral position automatically when the flow of actuating fluid to the hydraulic actuator device is blocked. A solenoid operated valve device is disposed between the auxiliary source of fluid and the hydraulic actuator device and has an energized fluid supplying position for directing actuating fluid to the hydraulic actuator device and a de-energized fluid blocking position for blocking pressurized fluid from the hydraulic actuator device. An electrical switch is disposed within a conductor line connecting a source of electrical energy to the solenoid operated valve device and has a closed position for completing an electrical circuit to energize the solenoid operated valve device and an open position for de-energizing the solenoid operated valve device. The electrical switch is disposed beneath an operator\s seat of the vehicle in a position to be engaged by the seat and actuated to its closed position when the seat is moved to its lowered occupied position and is actuated to its open position when the seat is moved to its raised unoccupied position.

대표청구항 ▼

In a vehicle of the type having an operator\s seat movable between a raised unoccupied position and a lowered occupied position, an engine, a wheel drive line, and a fluid drive arrangement shiftable to forward, neutral and reverse drive conditions and including an overcenter variable displacement fluid pump driven by the engine and a fluid motor drivingly connecTed to the drive line, an auxiliary source of pressurized fluid, and hydraulic actuator means operatively connected to the fluid pump for establishing the forward and reverse drive conditions when actuating fluid from the auxiliary source of fluid is directed thereto and for establishing the neutral position when the flow of actuating fluid thereto is blocked, wherein the improvement comprises: solenoid operated valve means disposed between the auxiliary source of fluid and the hydraulic actuator means and having an energized fluid supplying position for directing actuating fluid from the auxiliary source of fluid to the hydraulic actuator means and a de-energized fluid blocking position for blocking pressurized fluid from the hydraulic actuator means; a source of electrical energy; a conductor connecting the source of electrical energy to the solenoid operated valve means; and an electrical switch disposed within the cnductor and having a closed position for completing an electrical circuit to energize the solenoid operated valve means and an open position for de-energizing the solenoid valve, the electrical switch being disposed beneath the operator\s seat in a position to be engaged by the seat and actuated to its closed position when the seat is moved to the lowered occupied position and is actuated to its open position when the seat is moved to the raised unoccupied position.

이 특허를 인용한 특허 (21) 인용/피인용 타임라인 분석

Gansler, Michael T., Apparatus and method for pitch state estimation for a vehicle.
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Barnes Charles A. (Bellevue MI) Davis Dean E. (Battle Creek MI) Wykoff Carl L. (Jackson MI), Brake and transmission control.
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Frahm, Jeffry R, Brake release handle.
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Nakada,Takuya; Ueda,Katsumi; Saito,Toru, Control system of industrial truck and controlling method of the same.
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Ueda,Katsumi; Iwamoto,Yoshihide; Saito,Toru, Control system of self propelled industrial machine.
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Osaki,Kuniharu; Saito,Toru, Distributed control system for forklift.
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McComber Donald R., Electrically-powered vehicle with swivel seat.
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Petaja Danny A. (P. O. Box 4519 Aspen CO 81611), Emergency locator beacon for skis.
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Field, J. Douglas; Stevens, Jon M.; LeMay, Philip; Gansler, Michael T., Enhanced control of a transporter.
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Field, J. Douglas; Stevens, Jon M.; LeMay, Philip; Gansler, Michael T., Enhanced control of a transporter.
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Kates, Kaitlin; Garrett, TreVorski; Pettyjohn, Jeffrey; Wisser, Douglas; Leach, Brian; Newton, Joshua, Golf cart with movable seat including a seat swivel mechanism.
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Haeder Thomas Q. (Lisbon ND) Albright Larry E. (Gwinner ND) Loraas Orlan J. (Lisbon ND) Shelbourn William C. (Bismark ND) Berg Gerald M. (Lisbon ND) Johnson Lyle L. (Lisbon ND) Sagaser Thomas M. (Bis, Hydraulic interblock system.
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Miura, Michihiro; Yamada, Kazutoshi; Yamada, Tadashi, Industrial vehicle.
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Bussinger, Allen, Lateral stability wheel.
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Bussinger, Allen Louis; Schultz, Jeremiah Vincent, Material handling cart.
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Wucherpfennig, Fredrick D.; Boyer, David J., Personal mobility vehicle incorporating tilting and swiveling seat and method for use while playing golf.
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Kamen, Dean L.; Arling, Richard W.; Field, J. Douglas; Morrell, John B.; Pompa, Jonathan B.; Heinzmann, Richard Kurt, Personal transporter.
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Jacobson Robert David, Push-pull coupling.
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Minor Ray C. (Leola PA), Seat interlock for skid-steer loader.
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Brandt Kenneth A. ; Jacobson Scott B., Traction lock/momentary override.
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Friesen Larry D. (Dallas OR) Palmer Stephen L. (Dallas OR), Vehicle brake control system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Seat actuated fluid drive neutralizing arrangement 원문보기