Tool with attachment for collecting debris and method of using the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01B-001/02
A01G-001/12
출원번호
US-0167201
(2014-01-29)
등록번호
US-8894112
(2014-11-25)
발명자
/ 주소
Lee, Gordon
출원인 / 주소
Lee, Gordon
대리인 / 주소
Donnelly, Victoria
인용정보
피인용 횟수 :
0인용 특허 :
17
초록▼
An attachment to a shovel having a shovel head and a handle is provided, converting the shovel into a tool for collecting debris. The attachment has a clamping head and a pivot arm shorter than the shovel handle, and a pivot for attaching the attachment to the shovel handle. The attachment is movabl
An attachment to a shovel having a shovel head and a handle is provided, converting the shovel into a tool for collecting debris. The attachment has a clamping head and a pivot arm shorter than the shovel handle, and a pivot for attaching the attachment to the shovel handle. The attachment is movable between a closed position when the shovel head and the clamping head are juxtaposed face to face forming a tunnel therebetween, and an open position when the shovel head and the clamping head are spaced apart. In operation, the clamping head is moved into an open position to collect debris, and then moved into a closed position towards the shovel head to secure the debris, followed by rotating the tool by 90° plus an offset angle, thereby causing the clamping head to open under its weight and the debris to fall through the tunnel.
대표청구항▼
1. A tool, comprising: a shovel having a shovel head for collecting debris and a shovel handle extending therefrom; andan attachment, comprising: an attachment member comprising: a pivot arm, which is shorter than the shovel handle, the pivot arm having a clamping end and a pivot end;a clamping head
1. A tool, comprising: a shovel having a shovel head for collecting debris and a shovel handle extending therefrom; andan attachment, comprising: an attachment member comprising: a pivot arm, which is shorter than the shovel handle, the pivot arm having a clamping end and a pivot end;a clamping head attached to the clamping end; anda pivot attached to the pivot arm for pivotally connecting the attachment to the shovel handle;the attachment member being movable between a closed position when the shovel head and the clamping head are juxtaposed face to face forming a tunnel therebetween having a tunnel axis along the tunnel, and an open position when the shovel head and the clamping head are spaced apart from each other;wherein friction in the pivot and a weight of the attachment member are chosen so that a component of the weight of the attachment member causing the clamping head to move away from the shovel head, when the tool is in a vertical position with the tunnel axis being aligned along a direction of gravity and rotated at an angle greater than an offset angle from the vertical position is greater than the friction, resulting in the clamping head moving away from the shovel head under the weight of the clamping head. 2. The tool of claim 1, wherein an angle of rotation of the tool is such that the tunnel axis is offset from the direction of gravity by an offset angle which is smaller than 90 degrees. 3. The tool of claim 1, wherein the clamping head comprises a first section and a second section configured to slide against each other for adjusting a width or a length of the clamping head. 4. The tool of claim 1, further comprising a means for moving the clamping head between the closed position and the open position. 5. The tool of claim 4, wherein the means for moving comprises a clamping handle pivotally connected to one of the clamping head or the pivot arm. 6. The tool of claim 5, wherein a length of the clamping handle is between 0.3-0.5 of a length of the shovel handle. 7. The tool of claim 1, further comprising a limiter for limiting a distance between the clamping head and the shovel head in the open position. 8. The tool of claim 1, wherein a projection of a length of the pivot arm is equal to or shorter than about ⅕-⅙ of a length of the shovel handle. 9. The tool of claim 1, wherein the clamping head has a lower edge and an upper edge, the upper edge being closer to the pivot, the lower edge and the upper edge defining a clamping head plane, the shovel handle having a distal end and a proximal end defining a handle axis, the handle axis being inclined relative to the clamping head plane by about 20-40 degrees. 10. An attachment for a shovel having a shovel handle and a shovel head, the attachment comprising: a pivot arm, which is shorter than the shovel handle, the pivot arm having a clamping end and a pivot end;a clamping head attached to the clamping end;a pivot attached to the pivot arm for pivotally connecting the attachment to the shovel handle;the clamping head being movable between a closed position when the shovel head and the clamping head are juxtaposed face to face forming a tunnel therebetween having a tunnel axis along the tunnel, and an open position when the shovel head and the clamping head are spaced apart from each other;wherein friction in the pivot and a weight of the attachment member are chosen so that a component of the weight of the attachment member causing the clamping head to move away from the shovel head, when the shovel with the attachment is in a vertical position with the tunnel axis being aligned along a direction of gravity and rotated at an angle greater than an offset angle from the vertical position, is greater than the friction, resulting in the clamping head moving away from the shovel head under the weight of the clamping head. 11. The attachment of claim 10, wherein an angle of rotation of the shovel with the attachment is such that the tunnel axis is offset from the direction of gravity by an offset angle which is smaller than 90 degrees. 12. The attachment of claim 10, wherein the clamping head comprises a first section and a second section configured to slide against each other for adjusting a width or a length of the clamping head. 13. The attachment of claim 10, further comprising a means for moving the clamping head between the closed position and the open position. 14. The attachment of claim 10, wherein the means for moving comprises a clamping handle pivotally connected to one of the clamping head or the pivot arm. 15. The attachment of claim 14, wherein a length of the clamping handle is between 0.3-0.5 of a length of the shovel handle. 16. The attachment of claim 10, further comprising a limiter for limiting a distance between the clamping head and the shovel head in the open position. 17. The attachment of claim 10, wherein a projection of a length of the pivot arm is equal to or shorter than about ⅕-⅙ of a length of the shovel handle. 18. The attachment of claim 10, wherein the clamping head has a lower edge and an upper edge, the upper edge being closer to the pivot, the lower edge and the upper edge defining a clamping head plane, the shovel handle having a distal end and a proximal end defining a handle axis, the handle axis being inclined relative to the clamping head plane by about 20-40 degrees. 19. A method for making an attachment for a shovel having a shovel handle and a shovel head, the method comprising: forming a pivot arm, which is shorter than the shovel handle, the pivot arm having a clamping end and a pivot end;forming a clamping head attached to the clamping end;forming a pivot attached to the pivot arm for pivotally connecting the attachment to the shovel handle;configuring the clamping head to be movable between a closed position when the shovel head and the clamping head are juxtaposed face to face forming a tunnel therebetween having a tunnel axis along the tunnel, and an open position when the shovel head and the clamping head are spaced apart from each other;choosing friction in the pivot and a weight of the attachment member so that a component of the weight of the attachment member causing the clamping head move away from the shovel head, when the shovel with the attachment is in a vertical position with the tunnel axis being aligned along a direction of gravity and rotated at an angle greater than an offset angle from the vertical position, is greater than the friction, so that the component of the weight of the attachment member causes the clamping head move away from the shovel head under the weight of the clamping head. 20. The method of claim 19, further comprising adjusting a width or a length of the clamping head.
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