IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0091216
(2011-04-21)
|
등록번호 |
US-8641111
(2014-02-04)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 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 hea
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;the attachment further comprising a limiter for limiting a distance between the clamping head and the shovel head in the open position, wherein the limiter is one of the following:a pin, which is attached to the pivot arm and is slidably movable in a slot; orthe pivot end is configured to act as the limiter. 2. The tool of claim 1, wherein the attachment member is configured to move the clamping head between the closed position and the open position. 3. The tool of claim 1, further comprising a clamping handle pivotally connected to one of the clamping head or the pivot arm. 4. The tool of claim 3, wherein a length of the clamping handle is between 0.3-0.5 of a length of the shovel handle. 5. The tool of claim 1, wherein friction in the pivot and weight of the attachment member are selected so that a component of the weight causing the clamping head move away from the shovel head is greater than the friction when the tool is rotated. 6. The tool of claim 5, 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. 7. 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. 8. 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. 9. 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. 10. An attachment for a shovel having a shovel handle and a shovel head for collecting debris, 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; anda 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, and an open position when the shovel head and the clamping head are spaced apart from each other;the attachment further comprising a limiter for limiting a distance between the clamping head and the shovel head in the open position, wherein the limiter is one of the following;a pin, which is attached to the pivot arm and is slidably movable in a slot; orthe pivot end is configured to act as the limiter. 11. The attachment of claim 10, further comprising a means for moving the clamping head between the closed position and the open position. 12. The attachment of claim 10, wherein friction in the pivot and weight of the attachment member are selected so that a component of the weight causing the clamping head move away from the shovel head is greater than the friction when the tool is rotated. 13. The attachment of claim 12, wherein an angle of rotation of 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. 14. The attachment of claim 10, wherein the clamping head comprises a first piece and a second piece configured to slide against each other for adjusting a width or a length of the clamping head. 15. The attachment of claim 10, further comprising a clamping handle pivotally connected to one of the clamping head or the pivot arm. 16. The attachment of claim 15, wherein a length of the clamping handle is between 0.3-0.5 of a length of the shovel handle. 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 operating a tool, a shovel having a shovel head for collecting debris and a shovel handle extending therefrom; and an 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;the attachment further comprising a limiter for limiting a distance between the clamping head and the shovel head in the open position, wherein the limiter is one of the following:a pin, which is attached to the pivot arm and is slidably movable in a slot; orthe pivot end is configured to act as the limiter;the method comprising:(a) bringing the attachment in an open position when the shovel head and the clamping head are spaced apart from each other;(b) loading debris onto the shovel head;(c) bringing the attachment in 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 two tunnel openings at respective ends of the tunnel;(d) transporting the tool to a position above a container having an opening for collecting debris; and(e) rotating the tool to release the debris through one of the tunnel openings into the opening of the container. 20. The method of claim 19, wherein the step (e) comprises rotating the tool so that a component of a weight of the attachment member causes the clamping head move away from the shovel head, thereby releasing the debris into the container.
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