[특허]Chuck having one-step lock and release

[미국특허] Chuck having one-step lock and release 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B23B-031/107
출원번호	US-0175141 (1993-12-29)
발명자 / 주소	Quiring Edward L. (Rogers MN)
출원인 / 주소	Poly-Tech Industries (Minneapolis MN 02)
인용정보	피인용 횟수 : 97 인용 특허 : 0

초록 ▼

A chuck device having a one-step lock and release mechanism for conveniently coupling a power bit to a drill having a Jacobs-style chuck. The chuck device includes a body having a centrally-positioned bore which is adapted to receive the power bit shank. The power bit shank includes a circumferentially-extending groove which is positioned inside the bore. The body has an inclined cam channel which includes an aperture for communicating with the bore. The body further includes a longitudinally-extending slot communicating with the inclined cam channel. A detent ball is disposed within the inclined cam channel for partial penetration through the aperture for engaging the circumferentially-extending groove of the power bit shank. A spring having an end encircles the body where the end is slidably positioned within the slot for biasing the detent ball rearwardly along the inclined cam channel during the unlocking and withdraw of a power bit from the chuck device. The position of the spring is confined on the body by a retaining ring positioned proximate to the inclined cam channel and by a sleeve which encircles a portion of the body. The retraction of the sleeve in a rearward direction compresses the spring and rearwardly biases the spring end within the slot for movement of the detent ball from locking engagement to the circumferentially-extending groove. Release of the sleeve permits the expansion of the spring and the biasing of the sleeve and detent ball in a forward direction for locking engagement to a power bit.

대표청구항 ▼

A chuck device for a tool bit having a shank and a circumferentially-extending groove about said shank, said chuck device comprising: (a) a body having a forward surface, a bore through said forward surface for receiving said shank, said body further having an inclined cam channel having an aperture communicating with said bore, said body further having a slot aligned to and communicating with said inclined cam channel; (b) a detent ball disposed in said inclined cam channel, a portion of said detent ball extendable through said aperture into said bore for engagement to said circumferentially-extending groove about said shank; (c) a sleeve encircling a portion of said body, a portion of said inclined cam channel, and said detent ball, said sleeve having a forward face and a retaining member encircling said body, said retaining member engaging said detent ball for forward and downward positioning of said detent ball within said inclined cam channel for engagement of said detent ball to said circumferentially-extending groove of said shank during forward biasing of said sleeve for locking of said shank and said tool bit within said longitudinal bore; (d) a spring means for biasing said sleeve, said spring means encircling said body between said inclined cam channel and said forward face, and means having an end positioned and extending longitudinally rearward within said slot toward said detent ball, said end being slidably positionable within said slot for engagement and biasing of said detent ball upwardly and rearwardly along said inclined cam channel and for disengaging said detent ball from said circumferentially-extending groove of said shank during rearward retraction of said sleeve along said body for unlocking and removal of said tool shank from said chuck device; and (e) a retaining means for encircling said body and said slot, said retaining means positioned between said inclined cam channel and said forward surface for retaining said spring means between said retaining means and said forward face.

이 특허를 인용한 특허 (97) 인용/피인용 타임라인 분석

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[미국특허] Chuck having one-step lock and release 원문보기

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[미국특허] Chuck having one-step lock and release 원문보기

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