[특허]Vertical lift loader boom

Vertical lift loader boom 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E02F-003/627
출원번호	US-0794343 (1991-11-12)
발명자 / 주소	Hoechst Lonnie D. (Gwinner ND) Loraas Orlan J. (Lisbon ND) Kaczmarski Wally L. (Lisbon ND) Albright Larry E. (Gwinner ND)
출원인 / 주소	Clark Equipment Company (South Bend IN 02)
인용정보	피인용 횟수 : 40 인용 특허 : 0

초록 ▼

A loader boom assembly has articulated lift arms that have first and second lift arm sections pivotally mounted together. The rear lift arm section is pivotally mounted to rear portions of a prime mover frame. The main lift arm section is substantially longer than the first lift arm section and pivots on the outer end of the rear lift arm link. The lift arm sections are in a folded position when the lift arms are lowered, and a control link is provided to cause the lift arms to unfold as the lift arms are raised to keep the forward portion of the main lift arm section moving along a generally vertical path after a selected lift height to provide a better forward reach of the boom assembly at the higher range of lift. The proportional lengths of the lift arm sections and the control link and the placement of the pivot points and actuators on the main frame also provide structural integrity and efficient power utilization.

대표청구항 ▼

A lift boom assembly for a loader on a prime mover having a longitudinal main frame having boom supports fixedly attached to the frame at the rear of the frame, said boom supports having upper ends, a pair of lift arms located at opposite sides of the frame and coupled together to move as a lift arm assembly, said lift arm assembly having a forward end attachment for mounting a working tool and a rearward end, said pair of lift arms each comprising first and second articulated lift arm links, including a main lift arm link extending from the forward portion of the frame rearwardly, and a second lift arm link shorter than the main lift arm link having a first end pivotally mounted to a rearward end of the main lift arm link and having a second end pivotally mounted to the upper ends of the boom supports substantially above a supporting surface for the main frame, extensible and retractable power actuator means having a first ends pivotally mounted to the main frame and extending upwardly and forwardly and being coupled to the main lift arm links, respectively, and a control link that is longer than the second lift arm links connected to at least one main lift arm link for controlling the path of movement of the pivot between the main lift arm links and the respective second lift arm links as the lift arms are raised and lowered, said control link having a first end pivotally mounted to the main frame adjacent forward portions of the main frame and having a second end extending rearwardly and pivotally connected to the main lift arm link, the control link being at a position above the pivotal mounting of the actuator means to the main frame and below the pivotal mountings of the second lift arm links when the lift arms are in a lowered position whereby the second pivot of the control link moves along an arc as the lift arm assembly is raised by the actuator means and the pivot between each main lift arm link and its respective second link moves in a controlled path which effectively retracts and extends the overall length of the two lift arm links of each lift arm as the boom assembly is raised to a desired position.

이 특허를 인용한 특허 (40)

Vicars, III, Joe W.; Hilvers, Michael J.; Smith, David R., Boom and linkage mechanism for skid-steer loader.
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Andrews Charles David ; Miller Gordon Edward ; Schult Leslie Harold ; Modzik ; Jr. Andrew Edward, Boom arm linkage mechanism.
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Gross, Justin C.; Martin, Kyle T.; Shekleton, Travis Alan; Kumbhar, Nilesh; Nagelin, Felix, Boom for a work vehicle.
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Gross, Justin C.; Ward, Thomas H.; Shekleton, Travis Alan; Kumbhar, Nilesh; Zin, Piotr, Boom for a work vehicle.
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Huntsberger, Kurt J.; Damon, Daniel J., Children's ride-on vehicle and bucket assembly.
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Hilvers,Michael J.; Garberson,John A., Easy maintenance and/or service utility vehicle with extendable utility boom.
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Lonnie D. Hoechst ; Charles H. Krause, Extended reach vertical lift boom.
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Roan, Thomas J.; Albright, Larry E., Folding lift arm assembly for skid steer loader.
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Deneve Jeffrey A. ; McLamb Rodney D. ; Rosefsky Matthew P., Implement lift arm arrangement for a skid steer loader.
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Jung,Jun Mo, Industrial vehicle.
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Kisse, Brandon J.; Bares, Mark F., Lift arm assembly for a power machine or vehicle.
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Ellefson, Shawn; Schatz, Warren, Lift arm assembly with integrated cylinder stop.
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Shibuya,Osamu, Lift arm device for industrial vehicle, industrial vehicle having the same and method of raising and lowering lift arm.
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Bares, Mark F.; Page, James H., Lift arm for a track propelled small loader.
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Horton, Jared D., Lift attachment apparatus.
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Dershem, Brian R.; Henderson, David D., Lift boom assembly.
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Layko,Michael C.; Parker,Jeffrey M., Lift boom assembly.
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Moffitt John M. (Wichita KS) Youngers Stephen A. (Clearwater KS), Lift boom assembly for a loader machine.
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Andrews Charles David ; Miller Gordon Edward ; Sliker Larry A. ; Flatau Donald Rodney, Link.
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Johnson Robert John, Load arm assembly for a skid steer loader.
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Yamada, Masami; Kondou, Hidehito; Sakamoto, Masami; Mori, Koichiro, Loader vehicle having a lift arm.
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Jang Moo Hwan,KRX ; Lee Seung Kuh,KRX ; Kim Nag In,KRX, Loader with a controlled vertical path of a working implement.
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Kurtz, William C., Loader with extending bucket and counter balance.
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Kurtz,Bill, Loader with extending bucket and counter balance.
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Thomas, Brad; Hartke, Louis; Langenfeld, Greg; Hutchinson, Matt, Low profile compact tool carriers.
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Thomas, Brad; Hartke, Louis; Langenfeld, Greg; Hutchinson, Matt, Low profile compact tool carriers.
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Thomas, Brad; Hartke, Louis; Langenfeld, Greg; Hutchinson, Matt, Low profile compact tool carriers.
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Layko, Michael C.; Parker, Jeffrey M., Method of lifting a boom assembly.
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Miller Gordon Edward ; Doering David Arthur, Operator enclosure.
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Flatau Donald Rodney ; Miller Gordon Edward ; Sliker Larry A. ; Andrews Charles David, Outer surface of a lift arm.
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Shimomura, Takashi; Kusunoki, Tadashi, Portion of a skid steer loader.
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Kato,Naoto, Shovel loader.
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Kato,Naoto, Shovel loader.
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Kato,Naoto, Shovel loader.
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Kato,Naoto, Shovel loader.
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Albright, Larry E.; Asche, James E.; Frederick, Dan; Roan, Thomas J.; Weddle, Gary W., Skid steer loader with extendable lift arms.
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Albright, Larry E.; Asche, James E.; Frederick, Dan; Roan, Thomas J.; Weddle, Gary W., Skid steer loader with lift arms.
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Sutter, Frank J, Transfer bucket and ejector assembly for a front end loader vehicle.
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Azure, John P.; Knipp, Joseph C.; Kuemper, James A., Utility loader with high lift loader arms and unifying hand grip for dual traction control levers.
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Azure, John P.; Knipp, Joseph C.; Murray, David A., Utility loader with high lift loader arms and unifying hand grip for dual traction control levers.
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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

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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Vertical lift loader boom 원문보기

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Vertical lift loader boom 원문보기

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이 특허를 인용한 특허 (40)

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