IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0189501
(2002-07-08)
|
우선권정보 |
FR-2001-109068 (2001-07-06) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
23 인용 특허 :
6 |
초록
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The invention relates to a cutting device with a retractable blade comprising a blade and a sleeve into which it is adapted to be retracted. It comprises: a support ( 16 ) for the blade ( 12 ), having a drive abutment ( 36 ), adapted to slide along the axis of the sleeve ( 10 ), first resilient retu
The invention relates to a cutting device with a retractable blade comprising a blade and a sleeve into which it is adapted to be retracted. It comprises: a support ( 16 ) for the blade ( 12 ), having a drive abutment ( 36 ), adapted to slide along the axis of the sleeve ( 10 ), first resilient return ( 19 ); a controllable movement ( 26 ) mounted on sleeve ( 10 ), adapted to coact with the support means ( 16 ) and abutment means adapted to receive said support means ( 16 ) of the blade ( 12 ) in a second working position to block them in translation.
대표청구항
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1. Cutting device with a retractable blade comprising a blade and a sleeve into which it is adapted to be retracted, characterized in that it comprises:support means ( 16 ) for the blade ( 12 ), having means forming a drive abutment ( 36 ), adapted to slide along the axis of said sleeve ( 10 ) betwe
1. Cutting device with a retractable blade comprising a blade and a sleeve into which it is adapted to be retracted, characterized in that it comprises:support means ( 16 ) for the blade ( 12 ), having means forming a drive abutment ( 36 ), adapted to slide along the axis of said sleeve ( 10 ) between a first rest position in which the blade ( 12 ) is retracted and a first working position in which the blade ( 12 ) is extended outside said sleeve ( 10 ), said support means ( 16 ) being, in said first working position, adapted to be carried from a second rest position to a second working position, spaced from the axis (M) of said sleeve ( 10 ), by passing through a second intermediate position;a first resilient return means ( 19 ) adapted to hold said support means ( 16 ) of the blade ( 12 ) in said first rest position;controllable movement means ( 26 ) mounted on said sleeve ( 10 ), adapted to coact with said support means ( 16 ) and to bear against said drive abutment forming means ( 36 ) to drive said support means ( 16 ) of the blade ( 12 ) from said first rest position toward said first working position;abutment means adapted to receive said support means ( 16 ) of the blade ( 12 ) in said second working position to block them in translation;and in that the drive of the blade ( 12 ) by means of said sleeve ( 10 ) against a surface to be cut drives said support means ( 16 ) into said second working position and effects the disengagement of said controllable movement means ( 26 ) and engages in said drive abutment forming means ( 36 ) such that said resilient return means ( 19 ) drive said support means ( 16 ) of the blade ( 12 ) into said first rest position as soon as the blade ( 12 ) is no longer in contact with said surface and that said abutment means free said support means ( 16 ) of the blade ( 12 ) which are carried from said second working position toward said second intermediate position;characterized in that said support means ( 16 ) of the blade, have an upper portion ( 32 ) and a lower portion ( 34 ), extending longitudinally and comprising a first end ( 14 ) in which the blade ( 12 ) is held in prolongation of said support means ( 16 ) of the blade ( 12 ), an intermediate portion ( 20 ) comprising said drive abutment forming means ( 36 ) and a second end ( 22 ) for guiding said support means ( 16 ); andcharacterized in that said drive abutment forming means ( 36 ) are constituted by two lug forming means disposed on side surfaces of said intermediate portion ( 20 ) in its lower portion ( 34 ), opposite to each other and whose abutment surface ( 44 ) is substantially perpendicular to said support means. 2. Cutting device with a retractable blade according to claim 1, characterized in that said controllable movement means ( 26 ) have a first portion ( 28 ) projecting out of the sleeve ( 10 ) to control them, and a second portion ( 30 ) divided into two symmetrical branches ( 30 a , 30 b ) facing each other, adapted to overlap said upper portion ( 32 ) at least in said intermediate portion ( 20 ) and said first end ( 14 ), the branches ( 30 a , 30 b ) being adapted to bear against the abutment surfaces ( 44 ) of the lug forming means ( 36 ). 3. Cutting device with a retractable blade according to claim 2, characterized in that said branches ( 30 a , 30 b ) of said second portion of said controllable movement means ( 26 ) are inclined relative to each other and relative to a plane (P) of symmetry which separates them, and in that the sidewalls ( 48 ) of said upper portion of said support means constitute frictional zones against which the branches ( 30 a , 30 b ) are adapted to bear to space them from each other when said blade support means ( 16 ) are driven toward said controllable movement means ( 26 ), and to disengage from said lug forming means ( 36 ). 4. Cutting device with a retractable blade according to claim 3, characterized in that the second portion of said controllable movement means ( 26 ) between the branches ( 30 a , 30 b ) of which said upper portion ( 32 ) of said support means is adapted to be engaged, constitutes said abutment means adapted to block said blade support means ( 16 ) in said second working position. 5. Cutting device with a retractable blade according to claim 1, characterized in that said first resilient return means are constituted by a helicoidal spring. 6. Cutting device with a retractable blade according to claims 1 , characterized in that it moreover comprises second resilient return means adapted to hold said controllable movement means in a rest position. 7. Cutting device with a retractable blade comprising a blade and a sleeve into which it is adapted to be retracted, comprising:support means for the blade, having means forming a drive abutment, adapted to slide along the axis of said sleeve between a first rest position in which the blade is retracted and a first working position in which the blade is extended outside said sleeve, said support means being, in said first working position, adapted to be carried from a second rest position to a second working position, spaced from the axis of said sleeve, by passing through a second intermediate position;a first resilient return means adapted to hold said support means of the blade in said first rest position;controllable movement means mounted on said sleeve, adapted to coact with said support means and to bear against said drive abutment forming means to drive said support means of the blade from said first rest position toward said first working position;abutment means adapted to receive said support means of the blade in said second working position to block them in translation;wherein the drive of the blade by means of said sleeve against a surface to be cut drives said support means into said second working position and effects the disengagement of said controllable movement means and engages in said drive abutment forming means such that said resilient return means drive said support means of the blade into said first rest position as soon as the blade is no longer in contact with said surface and that said abutment means free said support means of the blade which are carried from said second working position toward said second intermediate position;and wherein said drive abutment forming means are constituted by two lug forming means disposed on side surfaces of an intermediate portion in its lower portion, opposite to each other and whose abutment surface is substantially perpendicular to said support means. 8. Cutting device with a retractable blade according to claim 7, wherein said support means of the blade have an upper portion and a lower portion, extending longitudinally and comprising a first end in which the blade is held in prolongation of said support means of the blade, the intermediate portion comprising said drive abutment forming means and a second end for guiding said support means. 9. Cutting device with a retractable blade according to claim 8, wherein said controllable movement means have a first portion projecting out of the sleeve to control them, and a second portion divided into two symmetrical branches facing each other, adapted to overlap said upper portion of said support means of the blade, at least in said intermediate portion and a blade holding end of said support means, said branches being adapted to bear against the abutment surfaces of a lug forming means. 10. Cutting device with a retractable blade according to claim 9, wherein said branches of said second portion of said controllable movement means are inclined relative to each other and relative to a plane of symmetry which separates them, and wherein the sidewalls of said upper portion of said support means constitute frictional zones against which the branches are adapted to bear to space them from each other when said blade support means are driven toward said controllable movement means, and to disengage from said lug forming means. 11. Cutting device with a retractable blade according to claim 10, characterized in that the second portion of said controllable movement means between the branches of which said upper portion ( 32 ) of said support means is adapted to be engaged, constitutes said abutment means adapted to block said blade support means in said second working position. 12. Cutting device with a retractable blade according to claim 7, wherein said first resilient return means are constituted by a helicoidal spring. 13. Cutting device with a retractable blade according to claim 7, further comprising second resilient return means adapted to hold said controllable movement means in a rest position.
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