[특허]Power tool

[미국특허] Power tool 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21C-003/32 B25D-011/10
출원번호	US-0885137 (1992-05-18)
우선권정보	DE-4013512 (1990-04-27)
발명자 / 주소	Hser Jrgen (Neu-Ansbach DEX)
출원인 / 주소	Black & Decker, Inc. (Newark DE 02)
인용정보	피인용 횟수 : 41 인용 특허 : 0

초록 ▼

An electric power tool of the type which has an inserted tool bit (8), which can be operated with a rotary and a hammer action, and comprises a hammer which can be activated by axial displacement of the tool bit (8) by engagement with the work piece, also comprises a manually operable adjustment handle which can be rotated about an adjustment axis (59) between a first position in which a stop element (53) permits the axial displacement for the activation of the hammer, and a second position in which the stop element (53) blocks the axial displacement. The stop element (53) is connected with cam surface (61, 62) which is coupled with an adjustment element (41) movement of which switches between high and low speeds of the tool. The cam surface has an arc-shaped portion (61) circular about the adjustment axis (59). Connected to one end of the arc-shaped portion (61) of the cam surface is a curved second portion (62), the distance of which from the adjustment axis (59) changes continuously. Through the engagement of the additional section (62) with the adjustment element (41), the adjustment element (41) is displaced on movement of the adjustment handle so to switch to another speed setting.

대표청구항 ▼

A power tool adapted to hold a tool bit which can be operated with a rotating action and a hammer action, comprising: drive means for causing the tool bit to rotate including a gear assembly which can be switched between a drive disposition and a non-drive disposition; hammer means for imparting a hammer action to the tool bit and activated by axial displacement of the tool bit on engagement of said tool bit with a work piece; an adjustment handle connected to stop means and rotatable about an adjustment axis between a first position in which the stop means allows axial displacement of the tool bit to activate the hammer means and a second position in which the stop means blocks axial displacement of the tool bit; a cam member coupled to the adjustment handle and having an arcuate cam surface, said surface comprising a first, circular portion concentric with the adjustment axis and a second portion leading from one end of the first portion and continuously changing in distance from said axis; an adjustment element engaging the cam surface movement of which is arranged to switch said gear assembly between said drive and non-drive dispositions; the arrangement being such that when the adjustment handle is in its first position the adjustment element is in engagement with one end of said first portion of the cam surface, when the adjustment handle is in its second position the adjustment element is in engagement with the other end of the first portion of the cam surface, with no movement of the adjustment element taking place as the adjustment handle is moved between its first and its second positions; the adjustment handle being movable into a third position beyond one of its first and second positions so that the adjustment element is in engagement with the second portion of the cam surface and the adjustment element is displaced to cause the gear assembly to change between said drive and non-drive dispositions; and wherein the second portion of the cam surface continues from that end of the first portion of the cam surface associated with the first position of the adjustment handle, and movement of the adjustment handle into its third position from the first position renders the rotating drive for the tool bit ineffective.

이 특허를 인용한 특허 (41) 인용/피인용 타임라인 분석

Banach Peter A., Cam drive mechanism.
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Stirm, Michael, Compact hammer in-line.
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Tomiyama, Hideki; Yoshimura, Masanobu, Control handle of a bush cutter and a bush cutter therewith.
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Mayer Thomas,CHX ; Zeiter Olivier,CHX ; Keller Stephan,CHX, Gear shiftable planetary transmission.
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Zurwelle Donald W., Hammer drill.
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Zurwelle Donald W., Hammer drill.
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Ullrich, Andre; Herr, Tobias, Hand machine tool.
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Dresig, Friedmar; Hecht, Joachim, Hand power tool with a percussion merchanism, and as a method of operating the hand power tool.
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Manschitz, Erwin; Burger, Helmut; Anzinger, Josef; Ege, Manfred; Doberenz, Mathias, Hand-held electrical combination hammer drill.
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Manschitz,Erwin; Burger,Helmut; Anzinger,Josef; Ege,Manfred; Doberenz,Mathias, Hand-held electrical combination hammer drill.
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Bixler, Clark A.; Roberts, Beverly T.; Grant, Jeffrey P., Housing and gearbox for drill or driver.
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Bixler, Clark A.; Roberts, Beverly T.; Grant, Jeffrey P., Housing and gearbox for drill or driver.
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Saito,Takuma; Ohtsu,Shinki; Watanabe,Hideki; Toukairin,Junichi, Impact drill.
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Tomayko, David C.; Zhang, Qiang; Poetzl, Mark R.; Debellius, Stephen A., Multi-speed power tool transmission with alternative ring gear configuration.
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Hagan,Todd A; Potter,Christine; Milbourne,Rodney, Multispeed power tool transmission.
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Milbourne, Rodney; Potter, Christine; Hagan, Todd A; Bowers, Michael C., Multispeed power tool transmission.
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Milbourne,Rodney; Potter,Christine; Hagan,Todd A.; Bowers,Michael C., Multispeed power tool transmission.
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Milbourne,Rodney; Potter,Christine; Hagan,Todd A.; Bowers,Michael C., Multispeed power tool transmission.
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Milbourne,Rodney; Potter,Christine; Hagan,Todd A; Bowers,Michael C, Multispeed power tool transmission.
상세보기
Milbourne,Rodney; Potter,Christine; Hagan,Todd A; Bowers,Michael C, Multispeed power tool transmission.
상세보기
Potter,Christine; Milbourne,Rodney; Hagan,Todd A.; Bowers,Michael C., Multispeed power tool transmission.
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Potter,Christine; Milbourne,Rodney; Hagan,Todd A; Bowers,Michael C, Multispeed power tool transmission.
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Sakai Masato,JPX ; Kataoka Kenji,JPX, Portable electric drill.
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Okada,Masanori; Sakai,Masato; Tsuzuki,Hitoshi; Taniguchi,Takeshi; Ookubo,Takahiro, Portable electric hammer drill.
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Okuda,Shinsuke, Portable electric hammer drill.
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Okuda,Shinsuke, Portable electric hammer drill.
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Tomayko, David C.; Zhang, Qiang; Poetzl, Mark R.; Debellius, Stephen A., Power tool.
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Wu, Chien-Chun; Hsu, Hung-Ming; Teng, Cheng-I, Power tool having a function control mechanism for controlling operation in one of rotary drive and hammering modes.
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Wu, Chien-Chun, Power tool having an operating knob for controlling operation in one of rotary drive and hammering modes.
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Milbourne, Rodney; Potter, Christine; Rescigno, Gerald; Zhang, Qiang, Power tool with torque clutch.
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Bixler, Clark A.; Roberts, Beverly T.; Grant, Jeffrey P., Power tool with transmission cassette received in clam shell housing.
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Hyma, Steven W.; Weber, Andrew J., Rotary hammer.
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Lauterwald Martin,DEX, Rotary hammer.
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Ludy, Benjamin; Weber, Andrew J., Rotary hammer.
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Ludy, Benjamin; Weber, Andrew J., Rotary hammer.
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Stirm, Michael, Rotary hammer.
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Stirm,Michael, Rotary hammer.
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Wyler, Andrew R.; Ebner, Jeremy R., Rotary hammer.
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Wyler, Andrew R., Rotary hammer with vibration dampening.
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Funfer, Josef; Bohuschke, Michael; Gilger, Claus, Rotary switch for a hand-held power tool and a switching device including the rotary switch.
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Simm,Robert; Van Der Schans,Cornelis, Shifting device.
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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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[미국특허] Power tool 원문보기