[특허]Dismantlable and collapsible utility cart

[미국특허] Dismantlable and collapsible utility cart 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62D-027/06 B62M-007/14
출원번호	US-0002388 (1987-01-12)
발명자 / 주소	Brandenfels Carl W. (32934 Pittsburg Rd. St. Helens OR 97051)
인용정보	피인용 횟수 : 76 인용 특허 : 0

초록 ▼

A chassis member with rear wheels and a battery compartment has a detachable connection with an upright front wheeled support. The front wheeled support has a steering handle assembly pivotally connected thereto which can be locked in upright position or swung rearwardly into a folded position parallel with the front wheeled support, or pivoted forwardly for use as a dolly-type handle. An electric motor is mounted on the front wheeled support and has lead wires to the battery and to a switch operated by a belt tightener providing driving power when a hand lever is depressed but providing free wheeling when the lever is released. The lead wires for the battery are of a length and have disconnects which allow the battery to be carried on the person if desired. The cart is adapted to receive a removable seat and when knocked down consists of the chassis member, the front wheeled support, the battery, and the seat if the latter is used. The cart can be used to transport a person either in a sit down or stand up position, it has luggage carrying arms on the front wheeled support, it can be used as a dolly with or without power from the battery, and importantly, each of the dismantled parts are small and light enough for easy carrying by most persons and capable of being stored in overhead airplane or other vehicle storage areas.

대표청구항 ▼

A utility cart comprising: a chassis member having forward and rearward ends and upper and lower portions; a pair of rear wheels on said chassis member; a battery compartment depending from a lower portion of said chassis member; a battery removably contained in said compartment; a front wheeled support for the cart having front and rear portions and including a front wheel and a fork assembly therefor; detaching means on the forward end of said chassis member and on said front wheeled support detachably securing said chassis member and said front wheeled support together; said front wheeled support including an upright steering handle; releasable locking pivot means connected between said steering handle and said front wheel and fork assembly holding said steering handle either in an upright steering position, a folded down compacted position substantially parallel with said front wheel and fork assembly, or a forward pivoted position to serve as a push-pull handle for manipulating the cart; releasably locking telescoping means in said steering handle arranged to telescope and foreshortened handle; an electric motor supported on said front wheel and fork assembly; drive means between said motor and said front wheel; control means extending from said motor to an upper portion of said steering handle; circuit wire means extending between said motor, battery and control means, said circuit wire means being of an arrangement to maintain a circuit to said control means in the forward pivoted position of said steering handle whereby said control means is capable of controlling power to said motor when said steering handle is in its said steering position or its forward pivoted position; said drive means comprising a belt and pulley drive which normally slips on the pulleys to provide free wheeling of said wheel, a belt tightener on said front wheel support operated by said control means to tighten said belt when said control means is engaged for driving the wheel, and a switch in said circuit wire means engageable by said belt tightener operative to close said circuit wire means when said belt is tightened for driving the wheel and to open said circuit wire means when said belt slips for providing freewheeling of the wheel; a disconnect in said circuit wire means allowing said chassis member and front wheeled support to separate upon disengagement of said detaching means; and an upstanding seat detachably secured to the upper portion of said chassis member; said front wheeled support with said steering handle telescoped and pivoted in folded down compacted condition parallel with said wheel and fork assembly and said chassis member when detached from said front wheeled support with said seat detached all being compacted into individual pieces capable of being readily carried as separate packages by one person.

이 특허를 인용한 특허 (76) 인용/피인용 타임라인 분석

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Kamen, Dean; Ambrogi, Robert R.; Dattolo, James J.; Duggan, Robert J.; Field, J. Douglas; Heinzmann, Richard Kurt; McCambridge, Matthew M.; Morrell, John B.; Piedmonte, Michael D.; Rosasco, Richard J., Control of a personal transporter based on user position.
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Kamen, Dean; Ambrogi, Robert R.; Dattolo, James J.; Duggan, Robert J.; Field, J. Douglas; Heinzmann, Richard Kurt; McCambridge, Matthew M.; Morrell, John B.; Piedmonte, Michael D.; Rosasco, Richard J., Control of a personal transporter based on user position.
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Kamen, Dean; Ambrogi, Robert R.; Dattolo, James J.; Duggan, Robert J.; Field, J. Douglas; Heinzmann, Richard Kurt; McCambridge, Matthew M.; Morrell, John B.; Piedmonte, Michael D.; Rosasco, Richard J., Control of a personal transporter based on user position.
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Kamen, Dean; Ambrogi, Robert R.; Dattolo, James J.; Duggan, Robert J.; Field, J. Douglas; Heinzmann, Richard Kurt; McCambridge, Matthew M.; Morrell, John B.; Piedmonte, Michael D.; Rosasco, Richard J., Control of a personal transporter based on user position.
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Kamen, Dean; Ambrogi, Robert R.; Dattolo, James J.; Duggan, Robert J.; Field, J. Douglas; Heinzmann, Richard Kurt; McCambridge, Matthew M.; Morrell, John B.; Piedmonte, Michael D.; Rosasco, Richard J., Control of a personal transporter based on user position.
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Kamen, Dean; Ambrogi, Robert R.; Dattolo, James J.; Duggan, Robert J.; Field, J. Douglas; Heinzmann, Richard Kurt; McCambridge, Matthew M.; Morrell, John B.; Piedmonte, Michael D.; Rosasco, Richard J., Control of a personal transporter based on user position.
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Kamen, Dean; Ambrogi, Robert R.; Dattolo, James J.; Duggan, Robert J.; Field, J. Douglas; Heinzmann, Richard Kurt; McCambridge, Matthew M.; Morrell, John B.; Piedmonte, Michael D.; Rosasco, Richard J., Control of a personal transporter based on user position.
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Kamen, Dean; Ambrogi, Robert R.; Dattolo, James J.; Duggan, Robert J.; Field, J. Douglas; Heinzmann, Richard Kurt; McCambridge, Matthew M.; Morrell, John B.; Piedmonte, Michael D.; Rosasco, Richard J., Control of a personal transporter based on user position.
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Kamen, Dean; Rosasco, Richard J.; Ambrogi, Robert R.; Dattolo, James J.; Duggan, Robert J.; Field, J. Douglas; Heinzmann, Richard Kurt; McCambridge, Matthew M.; Morrell, John B.; Piedmonte, Michael D., Control of a personal transporter based on user position.
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Kamen, Dean; Heinzmann, Richard Kurt; Ambrogi, Robert R, Control of a transporter based on attitude.
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Kamen, Dean; Heinzmann, Richard Kurt; Ambrogi, Robert R., Control of a transporter based on attitude.
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[미국특허] Dismantlable and collapsible utility cart 원문보기

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[미국특허] Dismantlable and collapsible utility cart 원문보기

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