[특허]Lifting device

Beifa Group Co., Ltd.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Lifting device

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A45F-005/00
미국특허분류(USC)	294/165; 294/137
출원번호	US-0637651 (2009-12-14)
등록번호	US-8123269 (2012-02-28)
우선권정보	CN-2008 2 0171355 U (2008-12-16)
발명자 / 주소	Zhang, Binhui
출원인 / 주소	Beifa Group Co., Ltd.
대리인 / 주소	Christensen O'Connor Johnson Kindness PLLC
인용정보	피인용 횟수 : 4 인용 특허 : 12

초록

A lifting device generally includes a handle portion having first and second ends and a support portion having first and second ends. The first end of the support portion is pivotably coupled to the first end of the handle portion and the second end of the support portion is releasably engageable with the second end of the handle portion, such that the lifting device may be positioned in at least a closed position and an open position.

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1. A lifting device, comprising: a handle portion having first and second ends;a support portion having first and second ends, wherein the first end of the support portion is pivotably coupled to the first end of the handle portion and wherein the second end of the support portion is releasably engageable with the second end of the handle portion, such that the lifting device may be positioned in at least a closed position and an open position; andan engagement mechanism configured to releasably engage the second end of the handle portion with the second end of the support portion,wherein the engagement mechanism includes a lock tongue and a lock hook and release portion,wherein the lock tongue is configured to be received in engagement with the lock hook and release portion,wherein the lock tongue includes a lock tongue aperture defined therein, andwherein the lock hook and release portion includes a lock hook that extends into the lock tongue aperture when the second end of the support portion is engaged with the second end of the handle portion. 2. The lifting device of claim 1, wherein the lock tongue is disposed in the support portion and the lock hook and release portion is disposed in the handle portion. 3. The lifting device of claim 1, wherein the lock hook and release portion includes a pull block, a button for moving the engagement mechanism to an unengaged position, and a return spring for biasing the engagement mechanism to an engaged position. 4. The lifting device of claim 3, wherein the pull block is disposed inside the handle portion proximate to the second end and pivotally coupled to the handle portion, wherein an upper end of the pull block abuts the button, and a lower end of the pull block forms the lock hook. 5. The lifting device of claim 4, wherein the return spring is disposed in the handle portion body adjacent to the upper end of the pull block, wherein the engagement mechanism is normally biased in the engaged position and wherein the engagement mechanism can be biased to the unengaged position when the button is pushed. 6. The lifting device of claim 5, wherein pressing the button inward releases the engagement mechanism such that the lifting device is in its open position. 7. The lifting device of claim 6, wherein releasing the button returns the engagement mechanism to its engaged position. 8. A lifting device, comprising: a handle portion having first and second ends;a support portion having first and second ends, wherein the first end of the support portion is pivotably coupled to the first end of the handle portion and wherein the second end of the support portion is releasably engageable with the second end of the handle portion, such that the lifting device may be positioned in at least a closed position and an open position; andan engagement mechanism configured to releasably engage the second end of the handle portion with the second end of the support portion, wherein the engagement mechanism includes a lock tongue and a lock hook and release portion, the lock hook and release portion including a pull block, a button for moving the engagement mechanism to an unengaged position, and a return spring for biasing the engagement mechanism to an engaged position,wherein the button is disposed axially in the handle portion and has a first end protruding out of the second end of the handle portion through a button aperture, a second end disposed substantially within the handle portion, and a button stop disposed between the first and the second end. 9. The lifting device of claim 8, wherein the pull block is disposed inside the handle portion proximate to the second end and pivotally coupled to the handle portion, wherein an upper end of the pull block abuts the second end of the button, and a lower end forming a lock hook is adapted to hitch the lock tongue through a lock tongue aperture in the handle portion. 10. The lifting device of claim 9, wherein the return spring is disposed in the handle portion body adjacent to the upper end of the pull block, wherein the engagement mechanism is normally biased in the engaged position and wherein the engagement mechanism can be biased to the unengaged position when the button is pushed. 11. The lifting device of claim 10, wherein pressing the button inward releases the engagement mechanism such that the lifting device is in its open position. 12. The lifting device of claim 11, wherein releasing the button returns the engagement mechanism to its engaged position. 13. A lifting device, comprising: a handle portion having first and second ends;a support portion having first and second ends, wherein the first end of the support portion is pivotably coupled to the first end of the handle portion and wherein the second end of the support portion is releasably engageable with the second end of the handle portion, such that the lifting device may be positioned in at least a closed position and an open position; andan engagement mechanism including a lock tongue and lock hook and release portion, wherein the lock hook and release portion includes a pull block having a lock hook disposed inside the handle portion, a button for moving the engagement mechanism to an unengaged position in which the lock hook is disengaged from the lock tongue, and a return spring for biasing the engagement mechanism to an engaged position in which the lock hook is engageable with the lock tongue,wherein the lock hook is engageable with the lock tongue when the second end of the support portion is pivoted toward the second end of the handle portion and the lock tongue is inserted into the handle portion and brought into contact with the lock hook, andwherein pressing the button inward releases the engagement mechanism such that the lifting device can be placed in the open position and releasing the button allows the engagement mechanism to return to its engaged position such that the lifting device can be secured in the closed position. 14. The lifting device of claim 13, wherein the lock tongue is configured to be inserted through a tongue hole and engage the lock hook when the lifting device is secured in the closed position. 15. The lifting device of claim 14, wherein the lock tongue has a lock tongue aperture defined therein, and wherein the lock hook extends into the lock tongue aperture when the lock tongue engages the lock hook. 16. The lifting device of claim 14, wherein the lock tongue is configured to engage the pull block and push a lower end of the pull block outward when the lock tongue is inserted through the tongue hole. 17. The lifting device of claim 16, wherein the lock hook of the pull block has an outer surface that is adapted to slidably engage the lock tongue when the lock tongue is inserted through the tongue hole. 18. The lifting device of claim 17, wherein when the lock hook meets the lock tongue aperture, an elastic force of the return spring causes the pull block to hitch the lock hook in the lock tongue aperture and secure the lifting device in the closed position. 19. The lifting device of claim 13, wherein the lock hook is disposed inside the handle portion proximate to the second end and is pivotally coupled to the handle portion, and wherein an upper end of the pull block abuts the button and a lower end of the pull block forms the lock hook. 20. The lifting device of claim 19, wherein the return spring is disposed in the handle portion body adjacent to the upper end of the pull block, wherein the engagement mechanism is normally biased in the engaged position, and wherein the engagement mechanism can be biased to the unengaged position when the button is pushed. 21. The lifting device of claim 20, wherein pressing the button inward releases the engagement mechanism such that the lifting device is in its open position. 22. The lifting device of claim 21, wherein releasing the button returns the engagement mechanism to its engaged position. 23. The lifting device of claim 13, wherein the lock tongue is disposed in the support portion and the lock hook and release portion is disposed in the handle portion.

인용문헌 (12)

이 특허를 인용한 특허 (4)

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Lifting device

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특허 상세정보

Lifting device

초록

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인용문헌 (12)

이 특허를 인용한 특허 (4)

IPC 상위 출원인

과제정보

상세정보조회

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IPC 상세정보(version : 201201)

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