[특허]Convertible contact/sequential trip trigger with double actuation prevention structure

Convertible contact/sequential trip trigger with double actuation prevention structure 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B25C-001/04
출원번호	US-0449099 (1995-05-24)
발명자 / 주소	Vallee Glenn E. (West Warwick RI)
출원인 / 주소	Stanley-Bostitch, Inc. (East Greenwich RI 02)
인용정보	피인용 횟수 : 54 인용 특허 : 0

초록 ▼

A fastener driving tool includes an improved trigger assembly including control structure constructed and arranged to be manually movable between a sequential operating mode position and a contact operating mode position to cause the tool to operate in a sequential operating mode and a contact operating mode, respectively. The device includes a work piece contact responsive assembly carried by a housing and constructed and arranged for movement from a normal, inoperative position into an operative position in response to movement of the tool into cooperating engagement with the work piece. The control structure and the work piece contact responsive assembly cooperate to define actuation prevention structure constructed and arranged to prevent more than one cycle of tool operation from occurring during the sequential operating mode when only a single cycle of tool operation is intended.

대표청구항 ▼

A fastener driving tool comprising: a portable housing defining a fastener drive track, a magazine assembly carried by the housing for receiving a supply of fasteners and feeding successive fasteners into the drive track. a fastener driving element mounted within the drive track for movement through repetitive cycles, each of which includes a fastener drive stroke in one direction which a fastener within the drive track is engaged and moved outwardly of the drive track into a work piece, and a return stroke, a drive piston operatively connected with the fastener driving element for movement therewith, an actuating mechanism carried by said housing and being constructed and arranged for movement from a normal, inoperative position into an operative position for initiating movement of said piston and said fastener driving element through a fastener driving stroke, and a work piece contact responsive assembly carried by said housing and being constructed and arranged for movement from a normal, inoperative position into an operative position in response to movement of said tool into cooperating engagement with the work piece, said actuating mechanism including an actuator movable from an inoperative position to an operative position for controlling movement of said piston and fastener driving element through a fastener driving stroke, and a trigger assembly pivotally connected to said housing and movable between an inoperative position and a manually actuated position for moving said actuator to its operative position, said trigger assembly including control structure constructed and arranged to be manually movable between (1) a sequential operating mode position whereby movement of said contact responsive assembly to its operative position followed by movement of said trigger assembly to its actuated position moves said actuator to its operative position permitting said piston and fastener driving element to move through a fastener driving stroke, and movement of said trigger assembly to its actuated position prior to movement of said contact responsive assembly to its operative position prevents movement of said actuator to its operative position so that inadvertent movement of said contact responsive assembly will not actuate the fastener driving tool, and (2) a contact operating mode position whereby repeated movement of said contact responsive assembly to its operative position repeatedly moves said actuator to its operative position to move said piston and fastener driving element through successive fastener driving strokes only so long as said trigger assembly is in said actuated position, release of said trigger assembly from said actuated position causing said control structure to move to its sequential operating mode position, said control structure being constructed and arranged to remain in its contact operating mode position only when said trigger assembly is in its actuated position, said control structure and said work piece contact responsive assembly cooperating to define actuation prevention structure constructed and arranged to prevent more than one cycle from occurring during a sequential mode of operation when only one cycle is intended, wherein said trigger assembly includes: a trigger member pivotally coupled to the housing, a trigger lever pivotally coupled to a proximal end of said trigger member, said trigger lever including a locking member extending therefrom for locking said control structure in its contact operating mode position, and wherein said control structure includes: a slide assembly and a spring for biasing said slide assembly towards a sequential operating mode position, contact lever coupled to said slide assembly for movement therewith and pivotally coupled to the proximal end of said trigger assembly at a position spaced from said trigger lever, and torsional spring operatively coupled to said contact lever for biasing the contact lever away from said actuator, whereby (1) when said control structure is disposed in its sequential operating mode position and the trigger assembly is moved to its actuated position prior to moving said contact responsive assembly to its operative position, said contact lever is biased by said torsional spring so that said contact lever may not be engaged by said contact responsive assembly, and when said contact responsive assembly is moved to its operative position followed by movement of said trigger assembly to its actuated position, said contact responsive assembly engages said contact lever, said contact lever thereafter engages said actuator permitting the piston and fastener driving element to move through a fastener driving stroke, and (2) when said control structure is locked by said locking member in its contact operating mode position, so long as said trigger assembly is in said actuated position, said contact lever is oriented so as to be in position to be moved by said contact responsive assembly such that movement of said contact responsive assembly while said trigger assembly remains in its actuated position moves said contact lever so as to engage said actuator permitting the piston and fastener driving element to move through a fastener driving stroke, release of said trigger assembly releases said locking member so that the said spring biases said control structure to its sequential operating position.

이 특허를 인용한 특허 (54)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Convertible contact/sequential trip trigger with double actuation prevention structure 원문보기

초록 ▼

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연합인증

Convertible contact/sequential trip trigger with double actuation prevention structure 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (54)

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