US3789933A - Hammer drill - Google Patents

Hammer drill Download PDF

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Publication number
US3789933A
US3789933A US00284738A US3789933DA US3789933A US 3789933 A US3789933 A US 3789933A US 00284738 A US00284738 A US 00284738A US 3789933D A US3789933D A US 3789933DA US 3789933 A US3789933 A US 3789933A
Authority
US
United States
Prior art keywords
shaft
spindle
hammering
sleeve
coupling
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
US00284738A
Other languages
English (en)
Inventor
J Jarecki
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.)
Skil Corp
Original Assignee
Skil Corp
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 Skil Corp filed Critical Skil Corp
Application granted granted Critical
Publication of US3789933A publication Critical patent/US3789933A/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
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/10—Means for driving the impulse member comprising a cam mechanism
    • B25D11/102—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool
    • B25D11/106—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool cam member and cam follower having the same shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/062—Cam-actuated impulse-driving mechanisms
    • B25D2211/067—Cam-actuated impulse-driving mechanisms wherein the cams are involved in a progressive mutual engagement with increasing pressure of the tool to the working surface

Definitions

  • FIG. 1 is a partial side elevation and partial vertical section of a power tool embodying the present invention
  • drive means connecting the motor of the tool to said shaft for rotating the latter

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Percussive Tools And Related Accessories (AREA)
US00284738A 1972-08-30 1972-08-30 Hammer drill Expired - Lifetime US3789933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28473872A 1972-08-30 1972-08-30

Publications (1)

Publication Number Publication Date
US3789933A true US3789933A (en) 1974-02-05

Family

ID=23091343

Family Applications (1)

Application Number Title Priority Date Filing Date
US00284738A Expired - Lifetime US3789933A (en) 1972-08-30 1972-08-30 Hammer drill

Country Status (2)

Country Link
US (1) US3789933A (US07922777-20110412-C00004.png)
JP (1) JPS60191708A (US07922777-20110412-C00004.png)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158970A (en) * 1977-06-15 1979-06-26 Black & Decker Inc. Override arrangement and actuating knob for a shifting mechanism in portable tools
US4189011A (en) * 1977-04-07 1980-02-19 Metabowerke Gmbh & Co. Hammer drill
US4223744A (en) * 1978-08-03 1980-09-23 The Singer Company Reversing hammer drill
US4489792A (en) * 1981-05-28 1984-12-25 Fahim Atef E F Hammer drill adapter
US5513709A (en) * 1988-06-23 1996-05-07 Fisher; Hugh E. Power tool
US5653294A (en) * 1996-08-06 1997-08-05 Ryobi North America Impact mechanism for a hammer drill
US6223833B1 (en) 1999-06-03 2001-05-01 One World Technologies, Inc. Spindle lock and chipping mechanism for hammer drill
US20060213675A1 (en) * 2005-03-24 2006-09-28 Whitmire Jason P Combination drill
US20070056756A1 (en) * 2005-09-13 2007-03-15 Eastway Fair Company Limited Impact rotary tool with drill mode
US20070209815A1 (en) * 2006-03-09 2007-09-13 Makita Corporation Power tool
US20080210448A1 (en) * 2007-03-02 2008-09-04 Andre Ullrich Hand power tool
US20090126956A1 (en) * 2007-11-21 2009-05-21 Black & Decker Inc. Multi-mode hammer drill with shift lock
US20090126957A1 (en) * 2007-11-21 2009-05-21 Black & Decker Inc. Multi-mode drill with mode collar
US20090129876A1 (en) * 2007-11-21 2009-05-21 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US20090126958A1 (en) * 2007-11-21 2009-05-21 Black & Decker Inc. Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
US20100026107A1 (en) * 2008-07-30 2010-02-04 Hitachi Kodki Co., Ltd. Power tool
US7735575B2 (en) 2007-11-21 2010-06-15 Black & Decker Inc. Hammer drill with hard hammer support structure
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
EP2394765A1 (de) * 2010-06-14 2011-12-14 Anton Wittwer Schlagbohrmaschine
US11673247B2 (en) * 2019-10-14 2023-06-13 Nanjing Chervon Industry Co., Ltd. Impact drill

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4865004B2 (ja) * 2009-04-30 2012-02-01 株式会社南武 流体圧シリンダ装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1162889A (en) * 1911-07-25 1915-12-07 Siemens Schuckertwerke Gmbh Percussion-tool.
US2223727A (en) * 1939-04-24 1940-12-03 Homen Carl Percussion drill
DE810140C (de) * 1948-12-29 1951-08-06 Const Electro Mecaniques De Sa Elektrischer Hammer
US3511321A (en) * 1968-09-04 1970-05-12 Milwaukee Electric Tool Corp Hammer drill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1162889A (en) * 1911-07-25 1915-12-07 Siemens Schuckertwerke Gmbh Percussion-tool.
US2223727A (en) * 1939-04-24 1940-12-03 Homen Carl Percussion drill
DE810140C (de) * 1948-12-29 1951-08-06 Const Electro Mecaniques De Sa Elektrischer Hammer
US3511321A (en) * 1968-09-04 1970-05-12 Milwaukee Electric Tool Corp Hammer drill

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189011A (en) * 1977-04-07 1980-02-19 Metabowerke Gmbh & Co. Hammer drill
US4158970A (en) * 1977-06-15 1979-06-26 Black & Decker Inc. Override arrangement and actuating knob for a shifting mechanism in portable tools
US4223744A (en) * 1978-08-03 1980-09-23 The Singer Company Reversing hammer drill
US4489792A (en) * 1981-05-28 1984-12-25 Fahim Atef E F Hammer drill adapter
US5513709A (en) * 1988-06-23 1996-05-07 Fisher; Hugh E. Power tool
US5653294A (en) * 1996-08-06 1997-08-05 Ryobi North America Impact mechanism for a hammer drill
US6223833B1 (en) 1999-06-03 2001-05-01 One World Technologies, Inc. Spindle lock and chipping mechanism for hammer drill
US6550546B2 (en) 1999-06-03 2003-04-22 One World Technologies, Inc. Spindle lock and chipping mechanism for hammer drill
US20060213675A1 (en) * 2005-03-24 2006-09-28 Whitmire Jason P Combination drill
US20070056756A1 (en) * 2005-09-13 2007-03-15 Eastway Fair Company Limited Impact rotary tool with drill mode
US20070181319A1 (en) * 2005-09-13 2007-08-09 Whitmine Jason P Impact rotary tool with drill mode
US8122971B2 (en) 2005-09-13 2012-02-28 Techtronic Power Tools Technology Limited Impact rotary tool with drill mode
US7410007B2 (en) 2005-09-13 2008-08-12 Eastway Fair Company Limited Impact rotary tool with drill mode
US20110011606A1 (en) * 2005-09-13 2011-01-20 Whitmire Jason P Impact rotary tool with drill mode
US7549484B2 (en) * 2006-03-09 2009-06-23 Makita Corporation Power tool
US20070209815A1 (en) * 2006-03-09 2007-09-13 Makita Corporation Power tool
US20080210448A1 (en) * 2007-03-02 2008-09-04 Andre Ullrich Hand power tool
US7891438B2 (en) * 2007-03-02 2011-02-22 Robert Bosch Gmbh Hand power tool
US20100300714A1 (en) * 2007-11-21 2010-12-02 Trautner Paul K Multi-mode drill with an electronic switching arrangement
US20090126956A1 (en) * 2007-11-21 2009-05-21 Black & Decker Inc. Multi-mode hammer drill with shift lock
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
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
US20100206591A1 (en) * 2007-11-21 2010-08-19 Black & Decker Inc. Multi-mode drill with mode collar
US7798245B2 (en) 2007-11-21 2010-09-21 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US20090126957A1 (en) * 2007-11-21 2009-05-21 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
US8555998B2 (en) 2007-11-21 2013-10-15 Black & Decker Inc. Multi-mode drill with mode collar
US20090126958A1 (en) * 2007-11-21 2009-05-21 Black & Decker Inc. Multi-mode drill and transmission sub-assembly including a gear case cover supporting biasing
US7987920B2 (en) 2007-11-21 2011-08-02 Black & Decker Inc. Multi-mode drill with mode collar
US8292001B2 (en) 2007-11-21 2012-10-23 Black & Decker Inc. Multi-mode drill with an electronic switching arrangement
US8109343B2 (en) 2007-11-21 2012-02-07 Black & Decker Inc. Multi-mode drill with mode collar
US20090129876A1 (en) * 2007-11-21 2009-05-21 Black & Decker Inc. Multi-speed drill and transmission with low gear only clutch
US8381835B2 (en) * 2008-07-30 2013-02-26 Hitachi Koki Co., Ltd. Power tool
US20100026107A1 (en) * 2008-07-30 2010-02-04 Hitachi Kodki Co., Ltd. Power tool
EP2394765A1 (de) * 2010-06-14 2011-12-14 Anton Wittwer Schlagbohrmaschine
US11673247B2 (en) * 2019-10-14 2023-06-13 Nanjing Chervon Industry Co., Ltd. Impact drill

Also Published As

Publication number Publication date
JPS60191708A (ja) 1985-09-30
JPS6218284B2 (US07922777-20110412-C00004.png) 1987-04-22

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