[특허]Snow removal shovel

Castillo, Frank M.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Snow removal shovel

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E01H-005/02
미국특허분류(USC)	294/054.5; 037/285
출원번호	US-0331263 (2011-12-20)
등록번호	US-8550515 (2013-10-08)
발명자 / 주소	Castillo, Frank M.
출원인 / 주소	Castillo, Frank M.
대리인 / 주소	Parsons & Goltry
인용정보	피인용 횟수 : 2 인용 특허 : 11

초록
▼

A snow removal shovel includes an elongate support having an upper end and an opposed lower end, and a shovel blade having a ground engaging lower edge and an opposed upper edge, opposed side edges, a front snow-engaging side and an opposed rear side. The shovel blade is mounted to the lower end of the elongate support for pivotal movement between a snow shoveling position of the shovel blade toward the elongate support and a snow dumping position of the shovel blade away from the elongate support. A latch is mounted to the elongate support for movement between a locked position for securing the shovel blade in the snow shoveling position of the shovel blade, and an unlocked position for releasing the shovel blade in the snow shoveling position of the shovel blade for permitting the shovel blade to pivot between the snow shoveling and snow dumping positions.

대표
청구항
▼

1. A snow removal shovel, comprising: an elongate support having an upper end and an opposed lower end;a shovel blade having a ground engaging lower edge and an opposed upper edge, opposed side edges, a front snow-engaging side and an opposed rear side;the rear side of the shovel blade defines a middle between, and equidistant with respect to, the ground engaging lower edge and the upper edge, an upper section extending between the middle and the upper edge, and a lower section extending between the middle and the ground engaging lower edge;the lower section of the shovel blade is mounted for pivotal movement to the lower end of the elongate support at a pivot point located near the ground engaging lower edge of the shovel blade and between the ground engaging lower edge of the shovel blade and the middle of rear side of the shovel blade;the shovel blade pivots at the pivot point between a snow shoveling position of the shovel blade toward the elongate support and a snow dumping position of the shovel blade away from the elongate support;in the snow shoveling position of the shovel blade the upper edge of the shovel blade and the rear side of the shovel blade between the pivot point and the upper edge of the shovel blade are juxtaposed with respect to the elongate support;in the snow dumping position of the shovel blade the upper edge of the shovel blade and the rear side of the shovel blade between the pivot point and the upper edge of the shovel blade are positioned downwardly and away from the elongate support;a latch mounted to the elongate support for movement between a locked position for engaging the shovel blade in the snow shoveling position of the shovel blade for securing the shovel blade in the snow shoveling position of the shovel blade and preventing the shovel blade from pivoting from the snow shoveling position of the shovel blade to the snow dumping position of the shovel blade, and an unlocked position for disengaging the shovel blade in the snow shoveling position of the shovel blade for releasing the shovel blade in the snow shoveling position of the shovel blade and permitting the shovel blade to pivot from the snow shoveling position of the shovel blade to the snow dumping position of the shovel blade;a spring assembly coupled between the rear side of the shovel blade and the elongate support for biasing the shovel blade into the snow shoveling position of the shovel blade; andthe spring assembly comprises a plurality of springs. 2. The snow removal shovel according to claim 1, further comprising a handle operatively coupled to the latch to move the latch between the locked and unlocked positions in response to movement of the handle between a locking position and an unlocking position. 3. The snow removal shovel according to claim 2, wherein the handle is located near the upper end of the elongate support. 4. The snow removal shovel according to claim 3, further comprising a spring coupled between the elongate support and the latch for biasing the latch into the locked position. 5. The snow removal shovel according to claim 4, further comprising a handgrip formed in the upper end of the elongate support. 6. The snow removal shovel according to claim 5, wherein the handle is positioned near the handgrip so as to permit the handle and the handgrip to be concurrently taken up by hand to wield the snow removal shovel and to move the handle between the locking and unlocking positions for moving the latch between the locked and unlocked positions. 7. The snow removal shovel according to claim 6, further comprising: an arm-receiving cradle coupled to the handgrip;a brace coupled between, on the one hand, the handgrip and the cradle and, on the other hand, an intermediate portion of the elongate support between the upper and lower ends of the elongate support; andthe brace for providing leverage to the intermediate portion of the elongate support from the arm-receiving cradle and the handgrip. 8. The snow removal shovel according to claim 1, wherein the plurality of springs is coupled between the elongate support between the latch and the pivot point, and the upper section of the rear side of the shovel blade. 9. A snow removal shovel, comprising: an elongate support having an upper end and an opposed lower end;a shovel blade having a ground engaging lower edge and an opposed upper edge, opposed first and second side edges, a front snow-engaging side and an opposed rear side;the rear side of the shovel blade defines a middle between and equidistant with respect to the ground engaging lower edge and the upper edge, an upper section extending between the middle and the upper edge, and a lower section extending between the middle and the ground engaging lower edge;the lower section of the shovel blade is mounted for pivotal movement to the lower end of the elongate support at a pivot point located near the ground engaging lower edge of the shovel blade and between the ground engaging lower edge of the shovel blade and the middle of rear side of the shovel blade;the shovel blade pivots at the pivot point between a snow shoveling position of the shovel blade toward the elongate support and a snow dumping position of the shovel blade away from the elongate support;in the snow shoveling position of the shovel blade the upper edge of the shovel blade and the rear side of the shovel blade between the pivot point and the upper edge of the shovel blade are juxtaposed with respect to the elongate support;in the snow dumping position of the shovel blade the upper edge of the shovel blade and the rear side of the shovel blade between the pivot point and the upper edge of the shovel blade are positioned downwardly and away from the elongate support;a latch mounted to the elongate support for movement between a locked position for engaging the shovel blade in the snow shoveling position of the shovel blade for securing the shovel blade in the snow shoveling position of the shovel blade and preventing the shovel blade from pivoting from the snow shoveling position of the shovel blade to the snow dumping position of the shovel blade, and an unlocked position for disengaging the shovel blade in the snow shoveling position of the shovel blade for releasing the shovel blade in the snow shoveling position of the shovel blade and permitting the shovel blade to pivot from the snow shoveling position of the shovel blade to the snow dumping position of the shovel blade;a spring assembly coupled between the rear side of the shovel blade and the elongate support for biasing the shovel blade into the snow shoveling position of the shovel blade; the spring assembly comprisesa first spring having a first tag end coupled to the elongate support between the latch and the pivot point, a second tag end coupled to the upper section of the rear side of the shovel blade near the upper edge of the shovel blade and the first side edge of the shovel blade, and the first spring lengthening and shortening in response to movement of shovel blade between the snow shoveling and snow dumping positions; anda second spring having a third tag end coupled to the elongate support between the latch and the pivot point, a fourth tag end coupled to the upper section of the rear side of the shovel blade near the upper edge of the shovel blade and the second side edge of the shovel blade, and the second spring lengthening and shortening in response to movement of shovel blade between the snow shoveling and snow dumping positions. 10. The snow removal shovel according to claim 9, further comprising a handle operatively coupled to the latch to move the latch between the locked and unlocked positions in response to movement of the handle between a locking position and an unlocking position. 11. The snow removal shovel according to claim 10, wherein the handle is located near the upper end of the elongate support. 12. The snow removal shovel according to claim 11, further comprising a spring coupled between the elongate support and the latch for biasing the latch into the locked position. 13. The snow removal shovel according to claim 12, further comprising a handgrip formed in the upper end of the elongate support. 14. The snow removal shovel according to claim 13, wherein the handle is positioned near the handgrip so as to permit the handle and the handgrip to be concurrently taken up by hand to wield the snow removal shovel and to move the handle between the locking and unlocking positions for moving the latch between the locked and unlocked positions. 15. The snow removal shovel according to claim 14, further comprising: an arm-receiving cradle coupled to the handgrip;a brace coupled between, on the one hand, the handgrip and the cradle and, on the other hand, an intermediate portion of the elongate support between the upper and lower ends of the elongate support; andthe brace for providing leverage to the intermediate portion of the elongate support from the arm-receiving cradle and the handgrip. 16. A snow removal shovel, comprising: an elongate support having an upper end formed with a handgrip, and an opposed lower end;a shovel blade having a ground engaging lower edge and an opposed upper edge, opposed first and second side edges, a front snow-engaging side and an opposed rear side;the rear side of the shovel blade defines a middle between and equidistant with respect to the ground engaging lower edge and the upper edge, an upper section extending between the middle and the upper edge, and a lower section extending between the middle and the ground engaging lower edge;the lower section of the shovel blade is mounted for pivotal movement to the lower end of the elongate support at a pivot point located near the ground engaging lower edge of the shovel blade and between the ground engaging lower edge of the shovel blade and the middle of rear side of the shovel blade;the shovel blade pivots at the pivot point between a snow shoveling position of the shovel blade toward the elongate support and a snow dumping position of the shovel blade away from the elongate support;in the snow shoveling position of the shovel blade the upper edge of the shovel blade and the rear side of the shovel blade between the pivot point and the upper edge of the shovel blade are juxtaposed with respect to the elongate support;in the snow dumping position of the shovel blade the upper edge of the shovel blade and the rear side of the shovel blade between the pivot point and the upper edge of the shovel blade are positioned downwardly and away from the elongate support;an elongate rod having a proximal end formed with a handle and an opposed distal end formed with a latch;the elongate rod carried by the elongate support and extending along the elongate support from the handle located near the handgrip, and the latch located near the upper edge of the shovel blade;the elongate rod further being mounted to the elongate support for reciprocal movement between a locked position of the latch engaging the upper edge of the shovel blade in the snow shoveling position of the shovel blade for securing the shovel blade in the snow shoveling position of the shovel blade and preventing the shovel blade from pivoting from the snow shoveling position of the shovel blade to the snow dumping position of the shovel blade, and an unlocked position of the latch disengaging the upper edge of the shovel blade in the snow shoveling position of the shovel blade for releasing the shovel blade in the snow shoveling position of the shovel blade and permitting the shovel blade to pivot from the snow shoveling position of the shovel blade to the snow dumping position of the shovel blade; andthe handle being positioned near the handgrip so as to permit the handle and the handgrip to be concurrently taken up by hand for wielding the snow removal shovel and for reciprocating the elongate rod for moving the latch between the locked and unlocked positions. 17. The snow removal shovel according to claim 16, wherein the elongate rod between the proximal and distal ends is parallel with respect to the elongate support. 18. The snow removal shovel according to claim 16, further comprising a spring coupled between the elongate support and the latch for biasing the elongate rod into the locked position of the latch. 19. The snow removal shovel according to claim 16, further comprising: an arm-receiving cradle coupled to the handgrip;a brace coupled between, on the one hand, the handgrip and the cradle and, on the other hand, an intermediate portion of the elongate support between the upper and lower ends of the elongate support; andthe brace for providing leverage to the intermediate portion of the elongate support from the arm-receiving cradle and the handgrip. 20. The snow removal shovel according to claim 16, further comprising a spring assembly coupled between the rear side of the shovel blade and the elongate support for biasing the shovel blade into the snow shoveling position of the shovel blade. 21. The snow removal shovel according to claim 20, wherein the spring assembly comprises: a first spring having a first tag end coupled to the elongate support between the latch and the pivot point, a second tag end coupled to the upper section of the rear side of the shovel blade near the upper edge of the shovel blade and the first side edge of the shovel blade, and the first spring lengthening and shortening in response to movement of shovel blade between the snow shoveling and snow dumping positions; anda second spring having a third tag end coupled to the elongate support between the latch and the pivot point, a fourth tag end coupled to the upper section of the rear side of the shovel blade near the upper edge of the shovel blade and the second side edge of the shovel blade, and the second spring lengthening and shortening in response to movement of shovel blade between the snow shoveling and snow dumping positions. 22. A snow removal shovel, comprising: an elongate support having an upper end and an opposed lower end;a shovel blade having a ground engaging lower edge and an opposed upper edge, opposed first and second side edges, a front snow-engaging side and an opposed rear side;the rear side of the shovel blade defines a middle between and equidistant with respect to the ground engaging lower edge and the upper edge, an upper section extending between the middle and the upper edge, and a lower section extending between the middle and the ground engaging lower edge;the lower section of the shovel blade is mounted for pivotal movement to the lower end of the elongate support at a pivot point located near the ground engaging lower edge of the shovel blade and between the ground engaging lower edge of the shovel blade and the middle of rear side of the shovel blade;the shovel blade pivots at the pivot point between a snow shoveling position of the shovel blade toward the elongate support and a snow dumping position of the shovel blade away from the elongate support;in the snow shoveling position of the shovel blade the upper edge of the shovel blade and the rear side of the shovel blade between the pivot point and the upper edge of the shovel blade are juxtaposed with respect to the elongate support;in the snow dumping position of the shovel blade the upper edge of the shovel blade and the rear side of the shovel blade between the pivot point and the upper edge of the shovel blade are positioned downwardly and away from the elongate support;a latch mounted to the elongate support for movement between a locked position for engaging the shovel blade in the snow shoveling position of the shovel blade for securing the shovel blade in the snow shoveling position of the shovel blade and preventing the shovel blade from pivoting from the snow shoveling position of the shovel blade to the snow dumping position of the shovel blade, and an unlocked position for disengaging the shovel blade in the snow shoveling position of the shovel blade for releasing the shovel blade in the snow shoveling position of the shovel blade and permitting the shovel blade to pivot from the snow shoveling position of the shovel blade to the snow dumping position of the shovel blade; anda spring for biasing the shovel blade into the snow shoveling position of the shovel blade, the spring has a first tag end coupled to the elongate support between the latch and the pivot point, a second tag end coupled to the upper section of the rear side of the shovel blade near the upper edge of the shovel blade, and the spring lengthening and shortening in response to movement of shovel blade between the snow shoveling and snow dumping positions.

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Snow removal shovel

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