[특허]Power-driven hammer drill having an improved operating mode switch-over mechanism

[미국특허] Power-driven hammer drill having an improved operating mode switch-over mechanism 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E02D-007/02
출원번호	US-0395478 (1999-09-14)
우선권정보	JP0261891 (1998-09-16)
발명자 / 주소	Arakawa Takuo,JPX Hirayama Toshiro,JPX Nakamura Shin,JPX
출원인 / 주소	Makita Corporation, JPX
대리인 / 주소	Foley, Hoag & Eliot LLP
인용정보	피인용 횟수 : 60 인용 특허 : 8

초록 ▼

A power-driven hammer drill 1 includes a rotary lever 8 for transmitting and disabling the transmission of the rotation of a motor 5 to a tool bit 4 and a slide lever 9 for transmitting and disabling the transmission of hammer blows to the tool bit 4. The rotary lever 8 is formed with a chamfer 52, whereas the slide lever 9 is formed with a straight portion 54 and a cut-out 53 which conforms to the circular edge of the rotary lever 8. When the slide lever 9 is in the lowermost position with the rotary lever 8 fitted in the cut-out 53, the rotary lever 8 is in the position to disconnect the rotation of the motor 5 to the tool bit 4, and while in this position, the slide lever 9 cannot be slid to its uppermost position, in which hammer blows cannot be transmitted to the tool bit 4. When the slide lever 9 is located in the uppermost position and the chamfer 52 of the rotary lever 8 is in the rearmost position, in which hammer blows cannot be transmitted to the tool bit 4 but rotation can be transmitted to the tool bit 4, the straight portion 54 opposes the chamfer 52 across a narrow gap so that the rotary lever 8 cannot be rotated to the rotation disabling position.

대표청구항 ▼

[ What is claimed is:] [1.] A hammer drill, comprising:a chuck mounted on a front end of the hammer drill;a motor for providing drive power for the chuck;a rotation transmission mechanism provided between the chuck and the motor for transmitting rotation of the motor to the chuck;an impact transmission mechanism provided between the chuck and the motor for transmitting hammer blows generated by the motor to the chuck;a first change-over member associated with the rotation transmission mechanism for selectively enabling and disabling the rotation transmission mechanism to transmit the rotation of the motor to the chuck;a second change-over member associated with the impact transmission mechanism for selectively enabling and disabling the impact transmission mechanism to transmit the hammer blows generated by the motor to the chuck;a manually operable first operating member movable between operative and inoperative positions, wherein the first operating member, when in the operative position, operates the first change-over member so as to enable the rotation transmission mechanism and, when in the inoperative position, operates the first change-over member to disable the rotation transmission mechanism;a manually operable second operating member movable between operative and inoperative positions, wherein the second operating member, when in the operative position, operates the second change-over member so as to enable the impact transmission mechanism and, when in the inoperative position, operates the second change-over member to disable the impact transmission mechanism; anda lock means for, when one of the first and second operating members is in its inoperative position, coordinating with the other operating member so as to prohibit the other operating member from moving to its inoperative position.

이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

Neumaier Anton (Frstenfeldbruck DEX), Drilling tool speed shifting unit.
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Smith Arthur W. (1845 Randolph St. Los Angeles CA 90001), Electric hand tool.
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Mldan Karl (Munich DEX) Krueger Wilm (Grbenzell DEX), Hammer drill with a lockable tool holder.
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Arakawa Takuo,JPX ; Miwa Masao,JPX, Hammer drill with a mode change-over mechanism.
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Neumaier Anton (Frstenfeldbruck DEX) Hoereth Hans-Jrgen (Munich DEX), Hammer drill with separate and interconnectable drive means.
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Grossmann Horst (Huenfelden-Kirberg DEX), Latching arrangement for power tools.
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Holzer Peter (Solothurn DEX), Percussive drill with safety interlock for reversing gear.
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McCracken Robert E. (Tucson AZ), Power tool.
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이 특허를 인용한 특허 (60) 인용/피인용 타임라인 분석

Mina, Nathan T.; Cortez, Genaro, Cap assembly of a fastener-driving tool having switch mechanism incorporated therein for switching modes of operation of the fastener-driving tool.
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Greitmann, Ralf, Device for switching operating mode for hand tool.
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Netzler Sion,GBX, Drill.
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Peter Pretzell DE, Drilling hammer.
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Frauhammer,Karl; Meixner,Gerhard; Schnerring,Heinz; Braun,Willy; Kuhnle,Axel, Drilling hammer having an external mechanism for selectively switching operation between impact drilling and chiseling modes.
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Soika, Martin; Arich, Klaus-Dieter, Drive mechanism for a power tool.
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Shimma,Yasutoshi; Iwakami,Junichi, Electric hammer drill.
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Stirm,Michael, Hammer.
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Stirm,Michael, Hammer.
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Stirm,Michael, Hammer.
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Britz,Rory; Ontl,Rainer, Hammer drill.
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Furusawa, Masanori; Kasuya, Yoshihiro, Hammer drill.
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Michael Stirm DE, Hammer drill.
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Schoen Klaus,DEX ; Aglassinger Peter,DEX, Hammer drill.
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Yamazaki,Shingo, Hammer drill having switching mechanism for switching operation modes.
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Yamazaki,Shingo, Hammer drill having switching mechanism for switching operation modes.
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Kunz, Michael, Hammer drill with mode lock on.
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Jung,Achim; J��ger,Ren��; Seebauer,Ralf, Hammer drill with selective lock-on.
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Ullrich, Andre; Herr, Tobias, Hand machine tool.
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Ullrich, Andre; Herr, Tobias, Hand power tool.
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Frauhammer,Karl; Schnerring,Heinz; Braun,Willy; Kuhnle,Axel, Hand power tool, in particular drill hammer and/or jackhammer.
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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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Puzio, Daniel, Hybrid impact tool.
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Rudolph, Scott M.; Puzio, Daniel; Murthy, Sankarshan N.; Cleanthous, Aris; Stauffer, Joseph; Gehret, Robert S.; Hays, James D.; Zhang, Qiang, Hybrid impact tool.
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Rudolph, Scott M.; Puzio, Daniel; Murthy, Sankarshan N.; Cleanthous, Aris; Stauffer, Joseph; Gehret, Robert S.; Hays, James D.; Zhang, Qiang J., Hybrid impact tool.
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Rudolph, Scott; Murthy, Sankarshan; Puzio, Daniel; Zhang, Qiang; Cleanthous, Aris; Abolhassani, Mehdi; Wang, Ren H., Hybrid impact tool with two-speed transmission.
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Rudolph, Scott; Murthy, Sankarshan; Puzio, Daniel; Zhang, Qiang; Cleanthous, Aris; Abolhassani, Mehdi; Wang, Ren H.; Tomayko, David, Hybrid impact tool with two-speed transmission.
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Oda,Hiroyuki; Terunuma,Yukio; Ogura,Masayuki, Impact hammer drill.
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Schroeder, James D.; White, Paul S.; Oktavec, Craig A.; Wisniewski, Paul J.; Grasso, Edward J.; Trautner, Paul K., Mid-handle drill construction and assembly process.
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Bernhart, Ralf; Soika, Martin, Mode change knob assembly.
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Soika,Martin; Hanke,Andreas; Nemetz,Uwe; Kunz,Michael, Mode change switch for power tool.
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Burger, Helmut; Schreiber, Wolfgang; Erhardt, Jochen; Gerold, Peter, Mode selection switch for a combination electrical hand tool device.
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Soika,Martin; Herting,Rainer, Motor mounting and sealing arrangement for a power tool.
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Trautner, Paul K.; Bush, Dennis A., Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing.
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Trautner, Paul K., Multi-mode drill with an electronic switching arrangement.
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Trautner, Paul K., Multi-mode drill with an electronic switching arrangement.
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Schroeder, James D.; Bush, Dennis A.; Trautner, Paul K., Multi-mode drill with mode collar.
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Schroeder, James D.; Bush, Dennis A.; Trautner, Paul K., Multi-mode drill with mode collar.
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Schroeder, James D.; Bush, Dennis A.; Trautner, Paul K., Multi-mode drill with mode collar.
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Trautner, Paul K., Multi-mode hammer drill with shift lock.
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Trautner, Paul K.; Scheerer, David E.; Schroeder, James D.; Bush, Dennis A., Multi-speed drill and transmission with low gear only clutch.
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Ichijyou, Toshihiro; Satou, Shinichirou; Teranishi, Akira; Terunuma, Yukio, Operation mode switching mechanism for a hammer drill.
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Duesselberg, Achim; Ullrich, Andre; Sieber, Kurt; Brinkmann, Thomas, Portable power drill with gearbox.
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Shimma,Yasutoshi; Kasuya,Yoshihiro; Furusawa,Masanori, Power impact tool.
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Furusawa, Masanori; Kasuya, Yoshihiro, Power tool.
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Iwakami, Junichi; Bito, Shinya, Power tool.
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Arich, Klaus-Dieter; Benner, Erhard; Droste, Manfred; Nemetz, Uwe; Soika, Martin; Kunz, Michael, Power tool cooling.
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Murthy, Sankarshan; Zhang, Qiang; Puzio, Daniel; Rill, James T., Power tool with impact mechanism.
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Droste,Manfred, Rotary hammer.
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Lauterwald, Martin, Rotary hammer.
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Ludy, Benjamin; Richards, Daryl S., Rotary hammer.
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Stirm,Michael, Rotary hammer.
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Droste,Manfred, Rotary hammer with mode change ring.
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Liou, Mou-Tang, Screwing tool.
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Zhang, Qiang; Tomayko, David C.; Murthy, Sankarshan; Rill, James T., Spindle bearing arrangement for a power tool.
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Zhang, Qiang; Tomayko, David C.; Murthy, Sankarshan; Rill, James T., Spindle bearing arrangement for a power tool.
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Funfer, Josef, Switch assembly for a combined hand tool device.
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Duesselberg,Achim; Ullrich,Andre, Switching device.
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Manschitz, Erwin; Hellmann, Peter, Switching device for multifunctional hand-held machine tool.
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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

연합인증

[미국특허] Power-driven hammer drill having an improved operating mode switch-over mechanism 원문보기