GB1342403A - Hand-held percussive tools - Google Patents

Hand-held percussive tools

Info

Publication number
GB1342403A
GB1342403A GB2659071A GB2659071A GB1342403A GB 1342403 A GB1342403 A GB 1342403A GB 2659071 A GB2659071 A GB 2659071A GB 2659071 A GB2659071 A GB 2659071A GB 1342403 A GB1342403 A GB 1342403A
Authority
GB
United Kingdom
Prior art keywords
striker
fan
apertures
motor
air
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
GB2659071A
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 GB1342403A publication Critical patent/GB1342403A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • 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
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
    • 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
    • B25D2211/003—Crossed drill and motor spindles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Drilling And Boring (AREA)

Abstract

1342403 Percussive tools ROBERT BOSCH GmbH 19 April 1971 [9 April 1970] 26590/71 Heading B4C An electric crank-driven hand-guided percussive tool has its motor 17, Fig. 1 on the suction side of a radial fan 31, an outlet in the tool housing being connected to passages communicating with a hollow cylindrical space via a sheath 10 between a guide tube 6 for a striker 27, and a protective casing 9 for the guide tube 6, apertures 37 also being provided in the housing on the pressure side of the fan 31 through which cooling air can be discharged to atmosphere. The fan may have straight blades, Fig. 3, when used with a reversible polyphase motor, or curved blades, Fig. 5 (not shown), when used with a universal motor. In operation air is drawn in at 36, Fig. 2, in the direction a flows around the bearings of the striker crank shaft 2 and join another stream b, entering via apertures 33 . . . 35, adjacent the motor 17. The combined air stream c is compressed by the fan and half to two thirds of the air is discharged via the apertures 37 as shown at d. The remainder flows through the space 10 and is discharged via apertures 38 as shown at e. A piston 26 moves longitudinally in the striker 27 and an anvil 29 moves longitudinally within the hand side of the tool bit holder 7 in alignment with the striker 27.
GB2659071A 1970-04-09 1971-04-19 Hand-held percussive tools Expired GB1342403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702016964 DE2016964B2 (en) 1970-04-09 1970-04-09 HAND-HELD HAMMER WITH BUILT-IN ELECTRIC DRIVE MOTOR

Publications (1)

Publication Number Publication Date
GB1342403A true GB1342403A (en) 1974-01-03

Family

ID=5767561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2659071A Expired GB1342403A (en) 1970-04-09 1971-04-19 Hand-held percussive tools

Country Status (4)

Country Link
JP (1) JPS503228B1 (en)
DE (1) DE2016964B2 (en)
GB (1) GB1342403A (en)
NL (1) NL7104763A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157219A (en) * 1984-04-09 1985-10-23 Rhl Hydraulics Limited Power drilling tool
GB2309927A (en) * 1996-02-06 1997-08-13 Bosch Gmbh Robert Hand machine tool
GB2314795A (en) * 1996-06-29 1998-01-14 Bosch Gmbh Robert Cooling arrangement for an electric hand machine tool
FR2888136A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
FR2888137A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
FR2888139A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
FR2888138A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
FR2888140A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
CN102770245A (en) * 2010-01-15 2012-11-07 威克纽森产品有限两合公司 Hammer drill and/or impact hammer having cooling of equipment components

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016774A1 (en) * 1990-05-25 1991-11-28 Bosch Gmbh Robert MANUAL ELECTRIC MACHINE TOOL
DE19843642B4 (en) * 1998-09-23 2004-03-25 Wacker Construction Equipment Ag Air spring hammer mechanism with return air spring
DE102006000162A1 (en) * 2006-04-06 2007-10-11 Hilti Ag Electric hand tool machine with internal cooling fan

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157219A (en) * 1984-04-09 1985-10-23 Rhl Hydraulics Limited Power drilling tool
GB2309927A (en) * 1996-02-06 1997-08-13 Bosch Gmbh Robert Hand machine tool
GB2309927B (en) * 1996-02-06 1998-03-11 Bosch Gmbh Robert Hand machine tool with attachment
GB2314795A (en) * 1996-06-29 1998-01-14 Bosch Gmbh Robert Cooling arrangement for an electric hand machine tool
GB2314795B (en) * 1996-06-29 1998-09-09 Bosch Gmbh Robert Electric hand machine tool
FR2888138A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
FR2888137A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
FR2888139A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
FR2888136A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
FR2888140A1 (en) * 2005-07-08 2007-01-12 Outils Pneumatiques Globe Sa PNEUMATIC ASSEMBLY FOR DESSAVING FOUNDRY CORES
WO2007006933A1 (en) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Pneumatic assembly for an installation that is used for the blast cleaning of foundry cores
WO2007006936A1 (en) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Pneumatic assembly for an installation that is used for the blast cleaning of foundry cores
WO2007006932A1 (en) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Pneumatic unit for an apparatus for blast cleaning foundry cores
WO2007006935A1 (en) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Pneumatic assembly for an installation that is used for the blast cleaning of foundry cores
WO2007006934A1 (en) * 2005-07-08 2007-01-18 Les Outils Pneumatiques Globe Pneumatic assembly for an installation that is used for the blast cleaning of foundry cores
CN102770245A (en) * 2010-01-15 2012-11-07 威克纽森产品有限两合公司 Hammer drill and/or impact hammer having cooling of equipment components
CN102770245B (en) * 2010-01-15 2016-01-20 威克纽森产品有限两合公司 There is drill hammer and/or the jump bit of the cooling of part of appliance

Also Published As

Publication number Publication date
NL7104763A (en) 1971-10-12
DE2016964B2 (en) 1977-09-15
DE2016964A1 (en) 1971-10-21
JPS503228B1 (en) 1975-02-01

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Legal Events

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