GB1463179A - Striker mechanisms for spring hammers and hammer drills - Google Patents

Striker mechanisms for spring hammers and hammer drills

Info

Publication number
GB1463179A
GB1463179A GB5448974A GB5448974A GB1463179A GB 1463179 A GB1463179 A GB 1463179A GB 5448974 A GB5448974 A GB 5448974A GB 5448974 A GB5448974 A GB 5448974A GB 1463179 A GB1463179 A GB 1463179A
Authority
GB
United Kingdom
Prior art keywords
spring
hammer
dec
face
rotatable
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
Application number
GB5448974A
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.)
Impex Essen Vertrieb von Werkzeugen GmbH
Original Assignee
Impex Essen Vertrieb von Werkzeugen GmbH
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 Impex Essen Vertrieb von Werkzeugen GmbH filed Critical Impex Essen Vertrieb von Werkzeugen GmbH
Publication of GB1463179A publication Critical patent/GB1463179A/en
Expired legal-status Critical Current

Links

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
    • B25D11/108—Means for driving the impulse member comprising a cam mechanism the rotation axis of the cam member being parallel but offset to the tool axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

1463179 Percussive hammer IMPEX ESSEN VERTRIEB VON WERKZEUGEN GmbH 17 Dec 1974 [29 Dec 1973] 54489/74 Heading B4C [Also in Division B3] A cam operated drop and spring hammer or drill comprises a cam 13 which forces back a hammer member 11 against a spring 12 and releases it to allow the spring to urge the hammer against a tool 3, the rearward end position of spring 12 being adjustable to vary the force of the blow. As shown the drill is continuously rotated by interengagement of pinions 4, 5. The rear end of spring 12 is located on an internally threaded collet 14 mounted on a fixed bolt 15 the collet being rotatable, and hence axially movable, by a thumb wheel 19. In a modification the spring holder 20 rests against one face of a rotatable triangular member 21 each face of which is at a different distance from its axis of rotation.
GB5448974A 1973-12-29 1974-12-17 Striker mechanisms for spring hammers and hammer drills Expired GB1463179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732365117 DE2365117C3 (en) 1973-12-29 1973-12-29 Electrically operated hammer drill

Publications (1)

Publication Number Publication Date
GB1463179A true GB1463179A (en) 1977-02-02

Family

ID=5902217

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5448974A Expired GB1463179A (en) 1973-12-29 1974-12-17 Striker mechanisms for spring hammers and hammer drills

Country Status (4)

Country Link
CH (1) CH581534A5 (en)
DE (1) DE2365117C3 (en)
FR (1) FR2256006A1 (en)
GB (1) GB1463179A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2396130A (en) * 2002-12-10 2004-06-16 Black & Decker Inc Apparatus producing self-exciting hammer action in rotary power tool

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241496A (en) * 1979-03-23 1980-12-30 Dracon Industries Blade storage and selectable force impact termination tool
DE3829683A1 (en) * 1988-09-01 1990-03-15 Black & Decker Inc DRILLING HAMMER
CN101797742B (en) * 2010-01-19 2011-12-28 湖北三环锻造有限公司 Electric positioning impact wedging machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR501361A (en) * 1919-06-30 1920-04-13 Joly Freres & Vernaz Soc Hand punch
US3334694A (en) * 1965-01-12 1967-08-08 Milwaukee Electric Tool Corp Rotary hammer
DE1758381C3 (en) * 1968-05-21 1975-10-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt drilling machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2396130A (en) * 2002-12-10 2004-06-16 Black & Decker Inc Apparatus producing self-exciting hammer action in rotary power tool
GB2396130B (en) * 2002-12-10 2005-09-28 Black & Decker Inc Apparatus for producing self-exciting hammer action, and rotary power tool incorporating such apparatus
US7036608B2 (en) 2002-12-10 2006-05-02 Black & Decker Inc. Apparatus for producing self-exciting hammer action, and rotary power tool incorporating such apparatus

Also Published As

Publication number Publication date
FR2256006A1 (en) 1975-07-25
CH581534A5 (en) 1976-11-15
DE2365117C3 (en) 1982-02-25
DE2365117B2 (en) 1981-06-04
DE2365117A1 (en) 1975-07-10

Similar Documents

Publication Publication Date Title
GB1350401A (en) Power hammers
EP0298027A3 (en) Hand tool
DE3571214D1 (en) Drilling tool for hand drills
GB1352042A (en) Reversible pneumatic percussion device for making holes in soil by compaction
GB1308485A (en) Force pulse shaping member for percussion tool
IE32646B1 (en) Tool for use in a hammer drill's tool holder
GB1417678A (en) Percussion drilling machine
GB1230539A (en)
GB1463179A (en) Striker mechanisms for spring hammers and hammer drills
GB1444862A (en) Arrangement for taking up the recoil of a tool in a hammer machine
GB1461805A (en) Impact tool
GB1301760A (en)
GB1326956A (en) Portable drilling machines
GB1505907A (en) Rotary percussive hammer
GB1109560A (en) Improvements in or relating to descaling tools
GB1471604A (en) Impact device
GB1018919A (en) Improvements in or relating to tool holders, particularly for use with electric or compressed air hammers
GB777720A (en) Work drivers for lathes and similar or suitable machine tools
GB1459802A (en) Rock hammers and the like
GB1162656A (en) Rotary Percussion Apparatus
GB1271488A (en) Improvements in or relating to a device for driving a pin into a workpiece
GB1352803A (en) Staple driving device
GB294331A (en) Improvements in or relating to power driven boring and like tools
GB1230251A (en)
GB763116A (en) Improvements in impact tools

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee