GB1426770A - Striking mechanisms - Google Patents

Striking mechanisms

Info

Publication number
GB1426770A
GB1426770A GB5640273A GB5640273A GB1426770A GB 1426770 A GB1426770 A GB 1426770A GB 5640273 A GB5640273 A GB 5640273A GB 5640273 A GB5640273 A GB 5640273A GB 1426770 A GB1426770 A GB 1426770A
Authority
GB
United Kingdom
Prior art keywords
dec
disposed
members
piston
percussive
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
GB5640273A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1426770A publication Critical patent/GB1426770A/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
    • B25D11/12—Means for driving the impulse member comprising a crank mechanism
    • B25D11/125—Means for driving the impulse member comprising a crank mechanism with a fluid cushion between the crank drive and the striking body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2222/00—Materials of the tool or the workpiece
    • B25D2222/54—Plastics
    • B25D2222/61—Polyamides, e.g. Nylon

Landscapes

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

Abstract

1426770 Percussive tools ROBERT BOSCH GmbH 5 Dec 1973 [9 Dec 1972] 56402/73 Heading B4C [Also in Division F2] An air-cushion striking mechanism for a percussive tool comprises relatively movable cylinder and piston members 3, 8 disposed in a guide cylinder 2, one of the members being driven by a motor 15 by way of a crank 14 and a connecting rod 9 made of resilient synthetic plastics material. The rod may be made by injection moulding a polyamide around a preform of glass fibres, bearing bushes 10<SP>1</SP>, 12<SP>1</SP> of metal being disposed in the ends. The aircushion is formed in the space 16 when the piston closes the air channel 17. The blow is transmitted through an anvil 7.
GB5640273A 1972-12-09 1973-12-05 Striking mechanisms Expired GB1426770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722260365 DE2260365A1 (en) 1972-12-09 1972-12-09 AIR CUSHION STRIKING

Publications (1)

Publication Number Publication Date
GB1426770A true GB1426770A (en) 1976-03-03

Family

ID=5863993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5640273A Expired GB1426770A (en) 1972-12-09 1973-12-05 Striking mechanisms

Country Status (8)

Country Link
JP (1) JPS5630157B2 (en)
BR (1) BR7309334D0 (en)
CH (1) CH560588A5 (en)
DE (1) DE2260365A1 (en)
FR (1) FR2209640B1 (en)
GB (1) GB1426770A (en)
IT (1) IT1033518B (en)
NL (1) NL7316810A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003041915A1 (en) * 2001-11-15 2003-05-22 Black & Decker Inc. Hammer
DE102007000452A1 (en) * 2007-08-20 2009-02-26 Hilti Aktiengesellschaft Hand tool with lifting drive
EP2163355A1 (en) * 2008-09-12 2010-03-17 AEG Electric Tools GmbH Electric tool comprising an oscillating drive or crank drive with reduced mass
US7726413B2 (en) 2006-07-01 2010-06-01 Black & Decker Inc. Tool holder for a powered hammer
US7814986B2 (en) 2006-07-01 2010-10-19 Balck & Decker Inc. Lubricant system for powered hammer
US8590633B2 (en) 2006-07-01 2013-11-26 Black & Decker Inc. Beat piece wear indicator for powered hammer
EP2674258A3 (en) * 2008-08-29 2016-02-17 Makita Corporation Impact tool
CN108071573A (en) * 2016-11-17 2018-05-25 天津市千顷田机械科技有限公司 New compressors connecting rod
EP3632624A1 (en) * 2018-10-04 2020-04-08 Hilti Aktiengesellschaft Eccentric drive for a hand-held machine tool

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5056279U (en) * 1973-09-21 1975-05-27
JPS5056280U (en) * 1973-09-21 1975-05-27
JPS6021183Y2 (en) * 1977-06-29 1985-06-24 株式会社マキタ電機製作所 electric striking device
JPS5631537A (en) * 1979-08-17 1981-03-30 Honda Motor Co Ltd Connecting rod for internal combustion engine
DE2945935A1 (en) * 1979-11-14 1981-05-27 Robert Bosch Gmbh, 7000 Stuttgart HAND MACHINE TOOL WITH AN AIR SPRING PERFORMANCE
DE2951112C2 (en) * 1979-12-19 1983-10-13 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Connecting rod made of fiber-reinforced plastic for power machines
DE2951111C2 (en) * 1979-12-19 1983-10-13 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Connecting rods for prime movers
DE3004575A1 (en) * 1980-02-08 1981-08-13 Sigri Elektrographit Gmbh, 8901 Meitingen CONNECTING ROD MADE OF COMPOSITE MATERIAL
GB2230728B (en) * 1989-04-17 1992-10-21 Kioritz Corp Engine hammer
DE19929183B4 (en) * 1999-06-25 2004-07-29 Wacker Construction Equipment Ag Air spring hammer mechanism with hollow impact piston with idle opening
JP2008223524A (en) * 2007-03-09 2008-09-25 Kubota Corp Engine
DE102007035699A1 (en) * 2007-07-30 2009-02-05 Robert Bosch Gmbh Hand tool
US8870226B2 (en) 2010-02-22 2014-10-28 Honda Motor Co., Ltd. Evaporated fuel control device for saddle-type vehicles

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003041915A1 (en) * 2001-11-15 2003-05-22 Black & Decker Inc. Hammer
US8590633B2 (en) 2006-07-01 2013-11-26 Black & Decker Inc. Beat piece wear indicator for powered hammer
US7726413B2 (en) 2006-07-01 2010-06-01 Black & Decker Inc. Tool holder for a powered hammer
US7814986B2 (en) 2006-07-01 2010-10-19 Balck & Decker Inc. Lubricant system for powered hammer
DE102007000452A1 (en) * 2007-08-20 2009-02-26 Hilti Aktiengesellschaft Hand tool with lifting drive
EP2674258A3 (en) * 2008-08-29 2016-02-17 Makita Corporation Impact tool
EP2163355A1 (en) * 2008-09-12 2010-03-17 AEG Electric Tools GmbH Electric tool comprising an oscillating drive or crank drive with reduced mass
CN108071573A (en) * 2016-11-17 2018-05-25 天津市千顷田机械科技有限公司 New compressors connecting rod
EP3632624A1 (en) * 2018-10-04 2020-04-08 Hilti Aktiengesellschaft Eccentric drive for a hand-held machine tool
WO2020069917A1 (en) * 2018-10-04 2020-04-09 Hilti Aktiengesellschaft Eccentric drive for a hand-held machine tool
CN112703089A (en) * 2018-10-04 2021-04-23 喜利得股份公司 Eccentric driving piece of portable power tool
US20210323135A1 (en) * 2018-10-04 2021-10-21 Hilti Aktiengesellschaft Eccentric drive for a portable power tool
CN112703089B (en) * 2018-10-04 2024-05-03 喜利得股份公司 Eccentric drive for a hand-held power tool and hand-held power tool
US12064856B2 (en) * 2018-10-04 2024-08-20 Hilti Aktiengesellschaft Eccentric drive for a portable power tool

Also Published As

Publication number Publication date
DE2260365A1 (en) 1974-06-12
IT1033518B (en) 1979-08-10
JPS4988172A (en) 1974-08-23
JPS5630157B2 (en) 1981-07-13
FR2209640A1 (en) 1974-07-05
BR7309334D0 (en) 1974-08-29
FR2209640B1 (en) 1976-04-30
CH560588A5 (en) 1975-04-15
NL7316810A (en) 1974-06-11

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee