IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0164788
(2002-06-07)
|
우선권정보 |
DE-0058890 (1999-12-07) |
발명자
/ 주소 |
- Bruntrup, Thomas
- Damrath, Joachim
- Konrad, Jurgen
|
출원인 / 주소 |
- BSH Bosch und Siemens Hausgeraete GmbH
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대리인 / 주소 |
Greenberg, Laurence A.Stemer, Werner H.Locher, Ralph E.
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인용정보 |
피인용 횟수 :
11 인용 특허 :
6 |
초록
▼
An apparatus that attaches itself to a surface by negative pressure and that can move over the surface, in particular, for carrying out work, to prevent a risk, depending on the alignment of the surface, of the apparatus dropping downward if there is a decrease in an attachment force in the case of
An apparatus that attaches itself to a surface by negative pressure and that can move over the surface, in particular, for carrying out work, to prevent a risk, depending on the alignment of the surface, of the apparatus dropping downward if there is a decrease in an attachment force in the case of malfunctioning includes a safety configuration that monitors detachment of the apparatus from the surface and, in such a case, attaches a retaining configuration, preferably in the form of a suction cup, to the surface, the retaining configuration retaining the movable apparatus on the surface.
대표청구항
▼
An apparatus that attaches itself to a surface by negative pressure and that can move over the surface, in particular, for carrying out work, to prevent a risk, depending on the alignment of the surface, of the apparatus dropping downward if there is a decrease in an attachment force in the case of
An apparatus that attaches itself to a surface by negative pressure and that can move over the surface, in particular, for carrying out work, to prevent a risk, depending on the alignment of the surface, of the apparatus dropping downward if there is a decrease in an attachment force in the case of malfunctioning includes a safety configuration that monitors detachment of the apparatus from the surface and, in such a case, attaches a retaining configuration, preferably in the form of a suction cup, to the surface, the retaining configuration retaining the movable apparatus on the surface. erein said chuck means includes a base frame mounted on said lower end portion of said elongated shaft and projecting laterally from said elongated shaft, a sticking paddle provided at said base frame and having an acute-angled blade extending downwardly from said base frame, a movable plate arranged so as to be opposed to said sticking paddle and received in said longitudinal bore of said elongated shaft from said lower end portion of said elongated shaft, said movable plate being connected at an upper end portion thereof to a lower end of said towing wire, an engaging piece provided at a lower end portion of said movable plate and projecting laterally in the direction opposite to the direction in which said base frame laterally projects, said engaging piece having notch means, a coil spring mounted around said movable plate and disposed between said lower end portion of said elongated shaft and said engaging piece, swinging frame means pivotally supported to said base frame, said swinging frame including a substantially inverted V-shaped body, said substantially inverted V-shaped body having first and second arm means extending in the direction opposite to each other, said first arm means provided at a tip end thereof with a pin, said pin of said first arm means being engaged with said notch means of said engaging piece, said second arm means provided at a tip end thereof with a clamping pawl, wherein when said operating lever means is operated, said towing wire is pull upwardly to cause said movable plate to be moved upwardly against an action of said coil spring while causing said swinging frame to be pivoted, whereby said clamping pawl approaches said sticking paddle to pinch the weeds in cooperation with said sticking paddle. 4. A weeder as defined in claim 3, wherein said base frame has a body of a substantially U-shape in cross-section, said sticking paddle has a paddle body of a substantially U-shape in cross-section, said paddle body received in said base frame with both side portions thereof being interposed between both sides of said U-shaped body of said base frame, said movable plate is received in said substantially U-shaped paddle body so as to be slid along said sticking paddle, and said operating piece has a body of a substantially U-shape in cross-section. 5. A weeder as defined in claim 4, wherein said weeder further includes a remover paddle for removing the weeds and/or mud, said remover paddle having a blade, and said paddle body of said sticking paddle has a vertically extending slit, said remover paddle being arranged at a side of said sticking paddle which is opposite to a side of said sticking paddle at which said movable plate is arranged, said remover paddle being attached to said movable plate by a pin which penetrates said vertically extending slit of said sticking paddle. 6. A weeder as defined in claim 3, wherein said weeder further includes a remover paddle for removing the weeds and/or mud, said remover paddle having a blade, and said paddle body of said sticking paddle has a vertically extending slit, said remover paddle being arranged at a side of said sticking paddle which is opposite to a side of said sticking paddle at which said movable plate is arranged, said remover paddle being attached to said movable plate by a pin which penetrates said vertically extending slit of said sticking paddle. 7. A weeder as defined in claim 1, wherein said chuck means includes a base frame mounted on said lower end portion of said elongated shaft and projecting laterally from said elongated shaft, a sticking paddle provided at said base frame and having an acute-angled blade extending downwardly from said base frame, a movable plate arranged so as to be opposed to said sticking paddle and received in said longitudinal bore of said elongated shaft from said lower end portion of said elongated shaft, said movable plate being connected at an upper end portion thereof to a lower end of said towing wire, an e
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