[특허]Large heavy duty ratchet

Kingery, Kenneth G.

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특허 상세정보

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Large heavy duty ratchet

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60P-007/08
출원번호	US-0000324 (2016-01-19)
등록번호	US-10220761 (2019-03-05)
발명자 / 주소	Kingery, Kenneth G.
출원인 / 주소	Kingery, Kenneth G.
대리인 / 주소	Bycer Law, PLC
인용정보	피인용 횟수 : 0 인용 특허 : 11

초록
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The frame of a large heavy duty ratchet supports a spool about an axis of rotation. A handle, pivotable about the axis of rotation, includes protrusions engageable with toothed wheels on opposed sides of the spool to urge incremental rotation of the spool upon repetitive pivotal movement of the handle. A pair of spring-loaded pawls engage the toothed wheels to limit the direction of rotation of the toothed wheels. A cam, formed as part of the handle, disengages the pair of pawls from the toothed wheels upon pivotal movement of the handle to a certain ext...

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청구항
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1. A heavy duty ratchet comprising: (a) a pair of frames;(b) a spool rotatably mounted intermediate said pair of frames, said spool comprising a cylinder;(c) a toothed wheel mounted in locking relationship with said spool;(d) a handle pivotally mounted between said pair of frames, said handle including a protrusion for engaging the teeth of said toothed wheel to urge rotation of said spool in one direction upon pivotal movement of said handle in the one direction; and(e) a spring-loaded pawl pivotally mounted intermediate said pair of frames for engaging said toothed wheel to prevent rotation of said spool in an opposite direction;wherein said cylinder comprises two ends, a first end and a second end opposed said first end, and wherein said first end comprises a slot. 2. The heavy duty ratchet as set forth in claim 1 wherein said spool comprises a groove circumscribing said cylinder; said heavy duty ratchet further comprising a snap ring adapted to engage said groove, said snap ring mounted on a cylinder exterior of said toothed wheel and adapted to retain said toothed wheel in place. 3. The heavy duty ratchet as set forth in claim 1 wherein said toothed wheel comprises a nub adapted to mate with said slot in said cylinder and prevent rotation of said toothed wheel relative to said cylinder; and further comprising a disc mounted on said spool, said disc positioned laterally of said toothed wheel upon said cylinder to provide a distance of said toothed wheel from said second end, said disc comprising a nub adapted to mate with said slot in said cylinder and prevent rotation of said toothed wheel relative to said cylinder; a spacer ring mounted on a cylinder exterior of said toothed wheel, said spacer ring comprising a nub adapted to mate with said slot in said cylinder and prevent rotation of said toothed wheel relative to said cylinder. 4. The heavy duty ratchet as set forth in claim 1 wherein said spool includes a central passageway extending longitudinally therethrough and further comprises an exterior surface, said exterior surface comprising a lateral passageway interconnecting with said central passageway, and further comprising a ramp inserted within said central passageway inclined generally coincident with said lateral passageway. 5. The heavy duty ratchet as set forth in claim 1 wherein said slot engages said toothed wheel. 6. A heavy duty ratchet comprising: (a) a pair of frames;(b) a spool rotatably mounted intermediate said pair of frames, said spool comprising a contiguous cylinder;(c) a toothed wheel mounted in locking relationship with said spool;(d) a handle pivotally mounted to said pair of frames, said handle including a protrusion for engaging the teeth of said toothed wheel to urge rotation of said spool in one direction upon pivotal movement of said handle in the one direction; and(e) a spring-loaded pawl pivotally mounted intermediate said pair of frames for engaging said toothed wheel to prevent rotation of said spool in an opposite direction;wherein said cylinder comprises two ends, a first end and a second end opposed said first end, and wherein said first end comprises a slot. 7. The heavy duty ratchet as set forth in claim 6 wherein said toothed wheel comprises a nub adapted to mate with said slot in said cylinder and prevent rotation of said toothed wheel relative to said cylinder. 8. The heavy duty ratchet as set forth in claim 7 further comprising a disc mounted on said spool, said disc positioned laterally of said toothed wheel upon said cylinder to provide a distance of said toothed wheel from said second end. 9. The heavy duty ratchet as set forth in claim 6 further comprising a spacer ring mounted on a cylinder exterior of said toothed wheel. 10. The heavy duty ratchet as set forth in claim 6 wherein said spool comprises a groove circumscribing said cylinder; said heavy duty ratchet further comprising a snap ring adapted to engage said groove, said snap ring mounted on a cylinder exterior of said toothed wheel and adapted to retain said toothed wheel in place. 11. The heavy duty ratchet as set forth in claim 6 wherein said spool includes a central passageway extending longitudinally therethrough and further comprises an exterior surface, said exterior surface comprising a lateral passageway interconnecting with said central passageway; and further comprising a ramp inserted within said central passageway inclined generally coincident with said lateral passageway. 12. The heavy duty ratchet as set forth in claim 6 wherein said cylinder is hollow. 13. The heavy duty ratchet as set forth in claim 6 wherein said a pair of frames are joined at one end and spaced apart at another other end. 14. The heavy duty ratchet as set forth in claim 6 wherein said slot engages said toothed wheel. 15. A heavy duty ratchet comprising: (a) a pair of frames;(b) a spool rotatably mounted intermediate said pair of frames, said spool comprising a contiguous cylinder;(c) a toothed wheel mounted in locking relationship with said spool;(d) a handle pivotally mounted to said pair of frames; and(e) a spring-loaded pawl pivotally mounted intermediate said pair of frames for engaging said toothed wheel to prevent rotation of said spool in an opposite direction;wherein said cylinder comprises two ends, a first end and a second end opposed said first end, and wherein said first end comprises a slot. 16. The heavy duty ratchet as set forth in claim 15 wherein said toothed wheel comprises a nub adapted to mate with said slot in said cylinder and prevent rotation of said toothed wheel relative to said cylinder. 17. The heavy duty ratchet as set forth in claim 15 wherein said first end comprises a keyway, said heavy duty ratchet further comprising a key structured to mate with said keyway. 18. The heavy duty ratchet as set forth in claim 17 wherein said key comprises a bar within a circumferential ring. 19. The heavy duty ratchet as set forth in claim 17 wherein said toothed wheel comprises said key. 20. The heavy duty ratchet as set forth in claim 15 wherein said slot engages said toothed wheel. 21. A heavy duty ratchet comprising: (a) a pair of frames;(b) a spool rotatably mounted intermediate said pair of frames, said spool comprising a contiguous cylinder;(c) a toothed wheel mounted in locking relationship with said spool;(d) a handle pivotally mounted to said pair of frames; and(e) a spring-loaded pawl pivotally mounted intermediate said pair of frames for engaging said toothed wheel to prevent rotation of said spool in an opposite direction; wherein said cylinder comprises two ends, a first end and a second end opposed said first end, and wherein said first end comprises a slot, and wherein said toothed wheel comprises a bar adapted to mate with said cylinder to prevent rotation of said toothed wheel relative to said cylinder. 22. The heavy duty ratchet as set forth in claim 21 wherein said slot engages said toothed wheel.

인용문헌 (11)

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Large heavy duty ratchet

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Large heavy duty ratchet

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