US3924692A - Fastener driving tool - Google Patents

Fastener driving tool Download PDF

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Publication number
US3924692A
US3924692A US440224A US44022474A US3924692A US 3924692 A US3924692 A US 3924692A US 440224 A US440224 A US 440224A US 44022474 A US44022474 A US 44022474A US 3924692 A US3924692 A US 3924692A
Authority
US
United States
Prior art keywords
driving
ram
housing
cam
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US440224A
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English (en)
Inventor
Oliver Edward Saari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Priority to US440224A priority Critical patent/US3924692A/en
Priority to CA216,940A priority patent/CA1017902A/en
Priority to AU76937/74A priority patent/AU493501B2/en
Priority to DE19752501539 priority patent/DE2501539A1/de
Priority to JP50012649A priority patent/JPS50109571A/ja
Priority to IT19828/75A priority patent/IT1031355B/it
Priority to SE7501238A priority patent/SE7501238L/xx
Priority to FR7503582A priority patent/FR2259676B3/fr
Application granted granted Critical
Publication of US3924692A publication Critical patent/US3924692A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power

Definitions

  • ABSTRACT A driving tool utilizing an electric motor to periodi-
  • the driving tool of the subject invention allows electric power to be fed into the too] more or less continuously and allows such energy to be stored in a spring means.
  • the spring provides the actual driving force to seat a fastener when the spring is suddenly allowed to release.
  • the spring is periodically compressed and released through the use of coacting helicoidal cam elements one of which elements is rotated about the axis of the ram and adapted to allow the ram to pass through upon the release of the stored energy.
  • a second cam member is fixedly attached to the ram and restrained from rotary motion so that the rotation of the first helicoidal cam causes the ram to be forced in an axial direction compressing a spring until the mating cam configuration allows the ram to be driven rapidly under the stored energy of the spring through the rotatable cam.
  • FIG. 1 is a side elevational view in partial section of a tool forming one embodiment of'the present invention.
  • FIG. 1 showing the tool as the spring means is compressed.
  • FIG. 2 is a partial side elevational view similar to that FIG. 3 is a sectional view taken substantially along lines 33 of FIG. 1.
  • FIG. 4 is a sectional view taken along the lines 4-4 of FIG. 1.
  • FIG. 5 is an enlarged elevational view in partial section of the pair of coacting helicoidal cams used in the present invention.
  • FIG. 6 is a graphical representation of the configuration of the cam surface in an alternate embodiment of the cam devices.
  • FIGS. 7-9 are various schematic representations of the switching mechanisms showing the various conditions capable as a result of the limit switch.
  • FIG. 10 is a partial side elevational view of another embodiment of the present invention showing an alternate spring mechanism.
  • the fastener driving tool 10 will be seen to include an electric motor casing 12 and an actuator housing 14. Mounted axially within the housing are a pair of mating helicoidal cams 16 and 18.
  • the cam 16 will include a radially extending flange 36 above the cam surfaces and a guide shaft 30 extending coaxially of the cam above the flange. Extending in the opposite axial direction through the cam surfaces is an elongate ram portion 40 adapted to drive sequentially fed fasteners in a manner which will be described in detail later herein.
  • the lower cam portion 18 will be of a substantially identical helicoidal shape and positioned to mate with the helicoidal surfaces of the upper cam 16.
  • Cam 18 will also include an integral ring gear 20 surrounding the axis of the cam.
  • a bore 26 is formed through the axis of the cam and adapted to receive the driving ram 40. Attention is directed to FIG. 5 for the details of the coacting cam 16 and 18.
  • the upper cam 16 is continuously biased downwardly to the position shown in FIG. 1.
  • the coil spring 38 is interposed between the upper portions of the housing and the flange 36 for this biasing purpose.
  • each cam element 16 and 18 will include a generally helical surface extending approximately 360 about the central axis of the element with the upper and lower extremities of the helical surface being connected by sharp drop-off portions 17 and 19, respectively.
  • the drop-off portions will extend parallel to the central axis of the cams and thus to the axis of the driving ram 40.
  • the guide shaft 30 may be provided with flats, such as 32, for mating telescopic association with a complementary bore 34 in guide sleeve 28. Attention is directed to FIGS. 1
  • the source of power to compress the spring in the housing may conveniently be provided by a conventional electric motor within the casing 12.
  • the output shaft 24 of the motor is connected to a pinion 22 through a gear set 25.
  • rotary power will be imparted to the lower cam 18 through the interaction of the pinion 22 and the ring gear 20, which is integrally connected to the cam.
  • Cam portion 18 will also include a sleeve portion extending axially forwardly for reception in a cavity at the forward end of the housing 14. Suitable bearings 23 are interposed between this sleeve and the housing to permit free rotation thereof.
  • Actuation of the electric motor 12 is initiated through a trigger 58 which in turn operates a switch 56.
  • a trigger 58 which in turn operates a switch 56.
  • One of the features of the invention is a switching arrangement which allows the ram 40 to be retained in a cocked position for essentially instantaneous driving upon the actuation of the trigger 58 by the operator.
  • FIGS. 1 and A pivot arm lever 50 is mounted adjacent the rear of the housing 14 with a terminal contact portion 52 aligned axially with the guide shaft 30.
  • the extremity of the pivot arm 50 opposite the contact point 52 is adapted to contact a switch 54 which is normally closed.
  • FIG. 7 represents the switch configuration during the., portion of the compression cycle immediately following impact stroke after the actuation of the electric motor by the trigger 58 and switch 56.
  • the instantaneous position of the elements can be represented by the condition shown in FIG. 1.
  • FIG. 9 shows switch 56 closed upon the actuation of trigger 58 and indicates an instantaneous condition of the circuit after the trigger has started the motor to slightly rotate the lower cam 20 from the position shown in FIG. 2 until the drop-off portions of the cam are aligned.
  • the immediate switch condition following the condition shown in FIG. 9 would be that shown in FIG. 7 assuming the operator releases the trigger. It should be understood that the operator can affect continuous operation of the device by continued activation of the trigger device 58.
  • the impact shock of the driving ram is prevented from being absorbed by the camming surfaces themselves by a resilient annular ring cushion 44-positioned beneath the flange 36 and a shoulder 46 mounted in the housing.
  • FIG. 10 shows an alternate embodiment of the power driving tool which utilizes a compressible gas, such as air or the like, as the spring means.
  • a compressible gas such as air or the like
  • the rearmost extremity of the housing 14a provides the chamber for such a compressible gas.
  • a cup-like piston is fixedly mounted to the upper cam 16a.
  • the gas chamber is sealed by suitable seal means 84 between the inner walls of the housing 14a and the outer side walls of the piston 80.
  • the piston may be fixedly retained to the cam and guide shaft 30a by threaded fastener means, such as 81 and 82.
  • a valve 86 is provided for selectively charging the chamber with the appropriate compressible gas. This embodiment will thus allow the compressibility of the spring to be conveniently varied.
  • the upper cam portion may be restrained from rotation through mating key and slot devices 86 and 88.
  • FIG. 6 shows, in a graphical form, how such a cam may be provided with a somewhat flattened surface 90 at the upper extremities of the cam and a conventional rising portion 92 at the beginning portions of the cam.
  • Such a cam structure will enable the torque required to compress the spring to be essentially constant as the upper cam 16 reaches the point of maximum compression of the spring. This will enable the power requirement from the electric motor to remain substantially constant during all stages of compression and will keep the maximum amperage required of the tool to a minimum.
  • a housing mounted for axial reciprocating movement therein, the driving means including an elongate ram, guide shaft and a cup-shaped piston opening rearwardly of the housing and the ram including a base portion extending radially outwardly of both the guide shaft and the ram and further including upstanding wall portions extending longitudinally of the housing from the base portion, said piston being located between the ram and guide shaft, seal means positioned between the upstanding wall portion of the piston and the associated inner periphery of the housing, a first helicoidal cam means fixedly attached to the driving means so that the ram extends coaxially through the cam means, a rotatable means for actuating the driving means including a second helicoidal cam means fixedly attached to a gear for rotation about the axis of the ram, a bore extending through the actuating means and second helicoidal cam to allow the ram to pass therethrough and create an impact force on a fastener positioned beneath the cams,
  • each helicoidal cam means includes a helical surface extending approximately 360 about the axis of the ram, the sharp drop-off portion of each cam means comprising a surface extending generally parallel to the axis of the ram whereby the tool will provide one driving stroke per revolution of the second helicoidal cam.
  • helicoidal cam means include helical-like surfaces wherein the slope of these surfaces decreases adjacent the drop-off portions of the cam so that the axial displacement of the driving means decreases as the spring approaches its maximum compression.
  • switch means are interposed between the driving means and the source of rotary power to cock the driving means in a position adjacent the rearwardmost position of the driving means when the spring means is near its maximum compression.
  • the switch means comprises a pair of switches. a first switch being actuated by means to open the electric circuit and stop the motor as the guide shaft approaches its rearwardmost position in the housing, a second switch operative to close the electric circuit and allow the ram to be driven from a cocked position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US440224A 1974-02-06 1974-02-06 Fastener driving tool Expired - Lifetime US3924692A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US440224A US3924692A (en) 1974-02-06 1974-02-06 Fastener driving tool
CA216,940A CA1017902A (en) 1974-02-06 1974-12-24 Fastener driving tool
AU76937/74A AU493501B2 (en) 1974-02-06 1974-12-31 Fastener driving tool
DE19752501539 DE2501539A1 (de) 1974-02-06 1975-01-16 Setzgeraet fuer halteelemente
JP50012649A JPS50109571A (enrdf_load_stackoverflow) 1974-02-06 1975-01-31
IT19828/75A IT1031355B (it) 1974-02-06 1975-01-31 Utensile per conficcare elementidi fissaggio
SE7501238A SE7501238L (enrdf_load_stackoverflow) 1974-02-06 1975-02-05
FR7503582A FR2259676B3 (enrdf_load_stackoverflow) 1974-02-06 1975-02-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US440224A US3924692A (en) 1974-02-06 1974-02-06 Fastener driving tool

Publications (1)

Publication Number Publication Date
US3924692A true US3924692A (en) 1975-12-09

Family

ID=23747934

Family Applications (1)

Application Number Title Priority Date Filing Date
US440224A Expired - Lifetime US3924692A (en) 1974-02-06 1974-02-06 Fastener driving tool

Country Status (7)

Country Link
US (1) US3924692A (enrdf_load_stackoverflow)
JP (1) JPS50109571A (enrdf_load_stackoverflow)
CA (1) CA1017902A (enrdf_load_stackoverflow)
DE (1) DE2501539A1 (enrdf_load_stackoverflow)
FR (1) FR2259676B3 (enrdf_load_stackoverflow)
IT (1) IT1031355B (enrdf_load_stackoverflow)
SE (1) SE7501238L (enrdf_load_stackoverflow)

Cited By (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103747A (en) * 1977-01-14 1978-08-01 Finney James L Buffer spring for an impact tool
US4171024A (en) * 1977-12-29 1979-10-16 Wilson Roger A Power hammer
US4214944A (en) * 1978-05-23 1980-07-29 American Can Company Adhesive bonding of assembly parts
US4215808A (en) * 1978-12-22 1980-08-05 Sollberger Roger W Portable electric fastener driving apparatus
US4431062A (en) * 1980-01-09 1984-02-14 Robert Bosch Gmbh Rotating drive for impact hammer
US4572053A (en) * 1984-02-27 1986-02-25 Teleflex Incorporated Ordnance ejector system
US4625903A (en) * 1984-07-03 1986-12-02 Sencorp Multiple impact fastener driving tool
US5794325A (en) * 1996-06-07 1998-08-18 Harris Corporation Electrically operated, spring-biased cam-configured release mechanism for wire cutting and seating tool
KR20030033289A (ko) * 2001-10-20 2003-05-01 (주)이도전자 못박기 기구
US20050194420A1 (en) * 2004-03-03 2005-09-08 Mario Zahner Electromagnetically driven setting tool and method of driving same
US20070023472A1 (en) * 2005-07-13 2007-02-01 Hilti Aktiengesellschaft Hand-held drive-in power tool
US20070228101A1 (en) * 2006-03-28 2007-10-04 Ulrich Schiestl Hand-held drive-in power tool
US20080017689A1 (en) * 2006-05-31 2008-01-24 David Simonelli Fastener driving device
US20080237294A1 (en) * 2007-03-26 2008-10-02 Hitachi Koki Co. Ltd. Fastener driving tool having impact buffering mechanism
US20090045241A1 (en) * 2007-08-14 2009-02-19 Chervon Limited Nailer device
US20090179062A1 (en) * 2008-01-15 2009-07-16 Hitachi Koki Co., Ltd. Fastener driving tool
US20090188766A1 (en) * 2008-01-15 2009-07-30 Hitachi Koki Co., Ltd. Fastener driving tool
US20090194576A1 (en) * 2008-02-04 2009-08-06 Feng-Ho Wang Power beating device
US20100089967A1 (en) * 2008-10-15 2010-04-15 Chervon Limited. Nailer device
US20100089963A1 (en) * 2008-10-09 2010-04-15 Hilti Aktiengesellschaft Hand-held fastener driver
US20100116864A1 (en) * 2008-11-07 2010-05-13 Pneutools, Incorporated Motorized fastener applicator
US7717191B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode hammer drill with shift lock
US7717192B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode drill with mode collar
US7735575B2 (en) 2007-11-21 2010-06-15 Black & Decker Inc. Hammer drill with hard hammer support structure
US20100147919A1 (en) * 2008-12-17 2010-06-17 Hilti Aktiengesellschaft Hand-held drive-in tool
US7762349B2 (en) 2007-11-21 2010-07-27 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US7770660B2 (en) 2007-11-21 2010-08-10 Black & Decker Inc. Mid-handle drill construction and assembly process
US7798245B2 (en) 2007-11-21 2010-09-21 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US7854274B2 (en) 2007-11-21 2010-12-21 Black & Decker Inc. Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
US20110011912A1 (en) * 2009-07-17 2011-01-20 Chervon Limited Auto hammer
US20110094763A1 (en) * 2009-10-28 2011-04-28 Chervon Limited Auto hammer
US20110100660A1 (en) * 2009-11-02 2011-05-05 Chevron Limited Auto hammer
US20110108298A1 (en) * 2009-11-06 2011-05-12 Chervon Limited Auto hammer
US20110114696A1 (en) * 2009-11-19 2011-05-19 Chevron Limited Auto hammer
US20110121048A1 (en) * 2009-11-20 2011-05-26 Chervon Limited Auto hammer
US20110203824A1 (en) * 2010-02-19 2011-08-25 Elger William A Impact device
US20110303726A1 (en) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Driving device
US20110303731A1 (en) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Driving device
US20120153001A1 (en) * 2010-12-15 2012-06-21 Hilti Aktiengesellschaft Electrically powered bolt setting device
CN101456177B (zh) * 2007-12-14 2012-08-08 喜利得股份公司 手持式击入机
US20120292064A1 (en) * 2011-05-19 2012-11-22 Hilti Aktiengesellschaft Fastener driving tool
US8505798B2 (en) 2005-05-12 2013-08-13 Stanley Fastening Systems, L.P. Fastener driving device
CN105033951A (zh) * 2014-04-30 2015-11-11 阿罗紧固设备公司 紧固工具
US9205546B2 (en) 2010-06-15 2015-12-08 Hilti Aktiengesellschaft Driving device
US20160260559A1 (en) * 2015-03-04 2016-09-08 Snap-On Incorporated Rotatable Control Device with Axial Translation
US9643306B2 (en) 2014-04-15 2017-05-09 Illinois Tool Works Inc. Fastener-driving tool including a driving device
US10173310B2 (en) 2015-02-06 2019-01-08 Milwaukee Electric Tool Corporation Gas spring-powered fastener driver
US10442066B2 (en) * 2014-08-28 2019-10-15 Koki Holdings Co., Ltd. Driver
US10478954B2 (en) 2007-10-05 2019-11-19 Senco Brands, Inc. Fastener driving tool using a gas spring
US10821585B2 (en) 2016-12-22 2020-11-03 Kyocera Senco Industrial Tools, Inc. Fastener driving tool with driver position sensors
US10821625B1 (en) 2018-05-04 2020-11-03 Albers VerMeer Design, LLC Fastener driving system
US10989241B2 (en) 2017-11-17 2021-04-27 Klein Tools, Inc. Impact device
US20220219302A1 (en) * 2021-01-13 2022-07-14 Basso Industry Corp. Retaining device for use with a nail gun
US20230001556A1 (en) * 2020-03-13 2023-01-05 Black & Decker, Inc. Pipe clamp, pipe clamp driver and anti-backdrive mechanism
US11878400B2 (en) 2021-01-20 2024-01-23 Milwaukee Electric Tool Corporation Powered fastener driver
US11904446B2 (en) 2020-05-07 2024-02-20 Kyocera Senco Industrial Tools, Inc. Power driving tool with latch position sensor
US12186872B2 (en) 2022-04-18 2025-01-07 Kyocera Senco Industrial Tools, Inc. Lifter for fastener driving tool
US12202112B2 (en) 2021-01-20 2025-01-21 Milwaukee Electric Tool Corporation Powered fastener driver

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US4724992A (en) * 1985-11-07 1988-02-16 Olympic Company, Ltd. Electric tacker
JP2017064832A (ja) * 2015-09-29 2017-04-06 日立工機株式会社 打込機

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US1634623A (en) * 1925-02-10 1927-07-05 Miller Smythe Electric Company Power hammer
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US2408484A (en) * 1943-11-06 1946-10-01 Wodack Electric Tool Corp Percussive tool
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US3695365A (en) * 1969-11-14 1972-10-03 Bosch Gmbh Robert Torque and impulse transmitting machine
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Cited By (115)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103747A (en) * 1977-01-14 1978-08-01 Finney James L Buffer spring for an impact tool
US4171024A (en) * 1977-12-29 1979-10-16 Wilson Roger A Power hammer
US4214944A (en) * 1978-05-23 1980-07-29 American Can Company Adhesive bonding of assembly parts
US4215808A (en) * 1978-12-22 1980-08-05 Sollberger Roger W Portable electric fastener driving apparatus
US4431062A (en) * 1980-01-09 1984-02-14 Robert Bosch Gmbh Rotating drive for impact hammer
US4572053A (en) * 1984-02-27 1986-02-25 Teleflex Incorporated Ordnance ejector system
US4625903A (en) * 1984-07-03 1986-12-02 Sencorp Multiple impact fastener driving tool
AU588244B2 (en) * 1984-07-03 1989-09-14 Sencorp Multiple impact fastener driving tool
US5794325A (en) * 1996-06-07 1998-08-18 Harris Corporation Electrically operated, spring-biased cam-configured release mechanism for wire cutting and seating tool
KR20030033289A (ko) * 2001-10-20 2003-05-01 (주)이도전자 못박기 기구
US20050194420A1 (en) * 2004-03-03 2005-09-08 Mario Zahner Electromagnetically driven setting tool and method of driving same
US8505798B2 (en) 2005-05-12 2013-08-13 Stanley Fastening Systems, L.P. Fastener driving device
US7537146B2 (en) * 2005-07-13 2009-05-26 Hilti Aktiengesllschaft Hand-held drive-in power tool
US20070023472A1 (en) * 2005-07-13 2007-02-01 Hilti Aktiengesellschaft Hand-held drive-in power tool
CN1895854B (zh) * 2005-07-13 2011-09-21 希尔蒂股份公司 手持式敲入机
US20070228101A1 (en) * 2006-03-28 2007-10-04 Ulrich Schiestl Hand-held drive-in power tool
US7922059B2 (en) * 2006-03-28 2011-04-12 Hilti Aktiengesellschaft Hand-held drive-in power tool
US20080017689A1 (en) * 2006-05-31 2008-01-24 David Simonelli Fastener driving device
US20080041914A1 (en) * 2006-05-31 2008-02-21 David Simonelli Fastener driving device
US20080048000A1 (en) * 2006-05-31 2008-02-28 David Simonelli Fastener driving device
WO2007142997A3 (en) * 2006-05-31 2008-08-21 Stanley Fastening Sys Lp Fastener driving device
US7938305B2 (en) 2006-05-31 2011-05-10 Stanley Fastening Systems, L.P. Fastener driving device
US20080237294A1 (en) * 2007-03-26 2008-10-02 Hitachi Koki Co. Ltd. Fastener driving tool having impact buffering mechanism
US7832610B2 (en) * 2007-03-26 2010-11-16 Hitachi Koki Co., Ltd. Fastener driving tool having impact buffering mechanism
US7789282B2 (en) * 2007-08-14 2010-09-07 Chervon Limited Nailer device
US20090045241A1 (en) * 2007-08-14 2009-02-19 Chervon Limited Nailer device
USRE44344E1 (en) * 2007-08-14 2013-07-09 Chervon (Hk) Limited Nailer device
US11241776B2 (en) 2007-10-05 2022-02-08 Kyocera Senco Industrial Tools, Inc. Fastener driving tool using a gas spring
US10478954B2 (en) 2007-10-05 2019-11-19 Senco Brands, Inc. Fastener driving tool using a gas spring
US11034007B2 (en) 2007-10-05 2021-06-15 Kyocera Senco Industrial Tools, Inc. Fastener driving tool using a gas spring
US11845167B2 (en) 2007-10-05 2023-12-19 Kyocera Senco Industrial Tools, Inc. Fastener driving tool using a gas spring
US8109343B2 (en) 2007-11-21 2012-02-07 Black & Decker Inc. Multi-mode drill with mode collar
US8555998B2 (en) 2007-11-21 2013-10-15 Black & Decker Inc. Multi-mode drill with mode collar
US7735575B2 (en) 2007-11-21 2010-06-15 Black & Decker Inc. Hammer drill with hard hammer support structure
US7717191B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode hammer drill with shift lock
US7762349B2 (en) 2007-11-21 2010-07-27 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US7770660B2 (en) 2007-11-21 2010-08-10 Black & Decker Inc. Mid-handle drill construction and assembly process
US8292001B2 (en) 2007-11-21 2012-10-23 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US7798245B2 (en) 2007-11-21 2010-09-21 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US7987920B2 (en) 2007-11-21 2011-08-02 Black & Decker Inc. Multi-mode drill with mode collar
US7854274B2 (en) 2007-11-21 2010-12-21 Black & Decker Inc. Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
US7717192B2 (en) 2007-11-21 2010-05-18 Black & Decker Inc. Multi-mode drill with mode collar
CN101456177B (zh) * 2007-12-14 2012-08-08 喜利得股份公司 手持式击入机
US8857692B2 (en) * 2008-01-15 2014-10-14 Hitachi Koki Co., Ltd. Fastener driving tool
US8844787B2 (en) * 2008-01-15 2014-09-30 Hitachi Koki Co., Ltd. Fastener driving tool
US20090179062A1 (en) * 2008-01-15 2009-07-16 Hitachi Koki Co., Ltd. Fastener driving tool
US20090188766A1 (en) * 2008-01-15 2009-07-30 Hitachi Koki Co., Ltd. Fastener driving tool
US20090194576A1 (en) * 2008-02-04 2009-08-06 Feng-Ho Wang Power beating device
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Also Published As

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DE2501539A1 (de) 1975-08-07
IT1031355B (it) 1979-04-30
SE7501238L (enrdf_load_stackoverflow) 1975-08-07
CA1017902A (en) 1977-09-27
JPS50109571A (enrdf_load_stackoverflow) 1975-08-28
FR2259676B3 (enrdf_load_stackoverflow) 1977-10-21
AU7693774A (en) 1976-07-01
FR2259676A1 (enrdf_load_stackoverflow) 1975-08-29

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