[특허]Collapsible and portable wheeled dolly particularly suitable for use by students or others in the transport of items

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Collapsible and portable wheeled dolly particularly suitable for use by students or others in the transport of items

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62B-003/02
미국특허분류(USC)	280/651; 280/030; 280/638; 280/639
출원번호	UP-0843442 (2007-08-22)
등록번호	US-7731221 (2010-06-29)
발명자 / 주소	Bess, Suzan L.
대리인 / 주소	Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C.
인용정보	피인용 횟수 : 27 인용 특허 : 34

초록
▼

A collapsible and transportable dolly including first and second rigid base portions hingedly secured together at a central location. First and second pairs of wheels secure to underside locations associated with the base portions. First and second substantially rectangular and frame shaped end supports secure in upwardly extending fashion to opposite end locations of the hingedly connected base portions and first and second pairs of top brackets secure in interconnecting and hinged fashion between the end supports, and such that associated angled bracket portions extend from end locations of each of the top brackets and telescopically engaging the end supports. In this fashion, the dolly is converted from a use to a folded storage/transport position by folding the base portions upwardly about the central hinged connection, concurrent with inwardly and downwardly folding the top brackets concurrent with telescoping the angled brackets along end support channels.

대표
청구항
▼

I claim: 1. A collapsible and transportable dolly, comprising: first and second rigid base portions hingedly secured together at a central location; first and second pairs of wheels securing to underside locations associated with said base portions; first and second substantially rectangular and frame shaped end supports secured in upwardly extending fashion to opposite end locations of said hingedly connected base portions; and first and second pairs of top brackets secured in interconnecting and hinged fashion between said end supports, associated angled bracket portions pivotally connected with and extending from end locations of each of said top brackets and engaging said end supports in vertically displacing fashion; said pairs of top brackets being downwardly pivoted about central locations corresponding with said hinge locations, by virtue of engaging release buttons associated with said end supports; said rigid base portions collapsing inwardly and upwardly with said central hinged location elevating above and between additional hinge locations associated with said pairs of length extending and inwardly collapsing brackets; said dolly being converted from a use to a portable folded storage/transport position in which said base portions are rotated to seat against and within a sandwiching arrangement established by said frame shaped end supports, concurrent with said pairs of top brackets inwardly telescoping and downwardly folding concurrent with said angled brackets vertically displacing along channels defined in said end supports and so that a collapsed area of the dolly equals that of each end support. 2. The dolly as described in claim 1, said first pair of wheels further comprising swivelable wheels secured to a first end of said dolly, whereas said second pair of wheel further comprising fixed wheels secured to a second end. 3. The dolly as described in claim 2, further comprising a lock release mechanism associated with each of said fixed and swivelable wheels and, in cooperation with a support pin associated with a wheel housing, permitting said wheels to convert between use and rotated storage positions within a selected base portion underside. 4. The dolly as described in claim 1, further comprising mesh netting sections secured to respective sides and ends of said assembled dolly enclosure. 5. The dolly as described in claim 1, each of said rigid base portions further comprising a rigid plasticized construction and being secured together at opposed hinged selected locations by a hinge support rod, hinge lock assemblies being provided at opposing ends of said base portions and engaging opposite ends of said hinge support rod in one of selective locking and released positions. 6. The dolly as described in claim 1, further comprising said angled brackets extending respectively from opposite end locations of each of said top brackets to a respective angled mounting location with a selected inner facing location of each of said frame shaped end supports. 7. The dolly as described in claim 1, further comprising end support pins are shown securing remote ends of said rigid base portions to corresponding bottom locations of said frame shaped end supports. 8. The dolly as described in claim 5, further comprising a central release lock pivotally folding said rigid base portions inwardly against one another, and upon actuating an opposingly arrayed pairs of hinge lock assemblies communicating with said hinge support rod. 9. The dolly as described in claim 6, further comprising a lock pin associated with a selected top rail bracket and engaged with a lock mechanism, said lock pin being actuated to a release position, upon depressing an associated push button, this causing an associated locking portion to be inwardly displaced from a support ledge of a selected angled brace support, whereby said top rail bracket is permitted to progressively telescope in advancing fashion a corresponding slot in a collapsing direction. 10. The dolly as described in claim 4, said mesh netting sections further comprising a select associated end support netting including a top looped end defining a support location to a horizontally extending attachment rod, a further end netting extending along at a bottom location and with a hook attachment. 11. The dolly as described in claim 1, further comprising inner top edge fascia covers provided in association with top edge extending locations of said frame support ends. 12. A collapsible and transportable dolly, comprising: a pair of rigid and planar shaped base portions which are hingedly secured together at a central location about a widthwise extending hinge support rod; first and second pairs of wheels securing to underside locations associated with said base portions; first and second substantially rectangular and frame shaped end supports secured in upwardly extending fashion to opposite end locations associated with said hingedly connected base portions; first and second pairs of top brackets secured in interconnecting and hinged fashion between said end supports, further associated angled bracket portions pivotally connected with and extending from end locations of each of said top brackets and engaging said end supports; said ridge base portions collapsing inwardly and upwardly with said hinge support rod elevating above and between additional hinge locations associated with said pairs of length extending and inwardly collapsing brackets; and said pairs of brackets being downwardly pivoted about central locations corresponding with said hinge locations, by virtue of engaging release buttons associated with said end supports, thereby allowing telescoping collapse of said brackets concurrent with sliding of said angled bracket portions along channels defined in said frame shaped end supports, and in combination with said base portions being inwardly and upwardly pivoted about said hinge support rod to rotate against said frame shaped end supports, via a separate release lock pin, and in order to convert said dolly to a sandwiched arrangement in a totally collapsed and portable condition and so that an area of the dolly equals that of each end support. 13. The dolly as described in claim 12, said first pair of wheels further comprising swivelable wheels secured to a first end of said dolly, whereas said second pair of wheel further comprising fixed wheels secured to a second end. 14. The dolly as described in claim 13, further comprising a lock release mechanism associated with each of said fixed and swivelable wheels and, in cooperation with a support pin associated with a wheel housing, permitting said wheels to convert between use and rotated storage positions within a selected base portion underside. 15. The dolly as described in claim 12, further comprising mesh netting sections secured to respective sides and ends of said assembled dolly enclosure. 16. The dolly as described in claim 12, further comprising end support pins are shown securing remote ends of said rigid base portions to corresponding bottom locations of said frame shaped end supports. 17. The dolly as described in claim 16, further comprising a central release lock pivotally folding said rigid base portions inwardly against one another, and upon actuating an opposingly arrayed pairs of hinge lock assemblies communicating with said hinge support rod. 18. The dolly as described in claim 17, further comprising a lock pin associated with a selected top rail bracket and engaged with a lock mechanism, said lock pin being actuated to a release position, upon depressing an associated push button, this causing an associated locking portion to be inwardly displaced from a support ledge of a selected angled brace support, whereby said top rail bracket is permitted to progressively telescope in advancing fashion a corresponding slot in a collapsing direction. 19. The dolly as described in claim 15, said mesh netting sections further comprising a select associated end support netting including a top looped end defining a support location to a horizontally extending attachment rod, a further end netting extending along at a bottom location and with a hook attachment. 20. The dolly as described in claim 12, further comprising inner top edge fascia covers provided in association with top edge extending locations of said frame support ends.

이 특허에 인용된 특허 (34)

이 특허를 인용한 특허 피인용횟수: 27

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특허 상세정보

Collapsible and portable wheeled dolly particularly suitable for use by students or others in the transport of items

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이 특허에 인용된 특허 (34)

이 특허를 인용한 특허 피인용횟수: 27

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Collapsible and portable wheeled dolly particularly suitable for use by students or others in the transport of items

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이 특허에 인용된 특허 (34)

이 특허를 인용한 특허 피인용횟수: 27

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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