GB942668A - Improvements in or relating to hammers - Google Patents

Improvements in or relating to hammers

Info

Publication number
GB942668A
GB942668A GB1528360A GB1528360A GB942668A GB 942668 A GB942668 A GB 942668A GB 1528360 A GB1528360 A GB 1528360A GB 1528360 A GB1528360 A GB 1528360A GB 942668 A GB942668 A GB 942668A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
closed
casing
motor
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
GB1528360A
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 GB942668A publication Critical patent/GB942668A/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
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface
    • 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)

Abstract

942,668. Percussive tools. ROBERT BOSCH G.m.b.H. May 2, 1960 [April 30, 1959], No. 15283/60. Heading B4C. A motor-driven percussive tool comprises a casing, a hollow cylinder closed at one end slidable in the casing, a piston slidable in the cylinder, the cylinder or the piston being formed as an impact body the other being connected to a motor by a crank and connecting rod, an intermediate space between the front of the piston and the closed end of the cylinder acting as an air cushion by which the movement of the driven part is transmitted to the impact body, and a valve between the air cushion and the atmosphere which is closed when excess pressure is present in the intermediate space and opened when there is a partial vacuum in the space.
GB1528360A 1959-04-30 1960-05-02 Improvements in or relating to hammers Expired GB942668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB53064A DE1207900B (en) 1959-04-30 1959-04-30 Motor-driven hammer

Publications (1)

Publication Number Publication Date
GB942668A true GB942668A (en) 1963-11-27

Family

ID=6970141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1528360A Expired GB942668A (en) 1959-04-30 1960-05-02 Improvements in or relating to hammers

Country Status (3)

Country Link
CH (1) CH384500A (en)
DE (1) DE1207900B (en)
GB (1) GB942668A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1584420A1 (en) 2004-04-07 2005-10-12 HILTI Aktiengesellschaft Device for variable setting of the impact energy of an electro-pneumatic percussion mechanism in a drilling and/or chipping hammer in which it is comprised.
WO2006136401A1 (en) * 2005-06-22 2006-12-28 Wacker Construction Equipment Ag Drilling and/or percussive hammer with no-load operation control

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8900947D0 (en) * 1989-03-16 1989-03-16 Atlas Copco Ab Striking Tools
FI20206303A1 (en) * 2020-12-15 2022-06-16 Lekatech Oy A hammer device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE291218C (en) *
DE285399C (en) *
DE506624C (en) * 1930-09-06 Siemens Schuckertwerke Akt Ges Impact device
US1207417A (en) * 1916-02-21 1916-12-05 Karl Kutschka Mechanical hammer.
US1489312A (en) * 1922-08-21 1924-04-08 Chicago Pneumatic Tool Co Power hammer
US2067886A (en) * 1935-09-13 1937-01-19 Byford Electric Hammer Co Inc Free piston power hammer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1584420A1 (en) 2004-04-07 2005-10-12 HILTI Aktiengesellschaft Device for variable setting of the impact energy of an electro-pneumatic percussion mechanism in a drilling and/or chipping hammer in which it is comprised.
WO2006136401A1 (en) * 2005-06-22 2006-12-28 Wacker Construction Equipment Ag Drilling and/or percussive hammer with no-load operation control
US8235136B2 (en) 2005-06-22 2012-08-07 Wacker Neuson Produktion GmbH & Co. KG Drilling and/or percussive hammer with no-load operation control

Also Published As

Publication number Publication date
CH384500A (en) 1964-11-15
DE1207900B (en) 1965-12-23

Similar Documents

Publication Publication Date Title
ES446017A1 (en) Impact tool
GB979744A (en) Powered impact tools
GB1432504A (en) Portable pneumatic impact tool
ES263723A1 (en) Percussion tools
GB1191489A (en) Improvements in or relating to Motor-Driven Vibratory or Percussive Implements.
GB1354028A (en) Power operated screwdrivers
GB942668A (en) Improvements in or relating to hammers
GB1109560A (en) Improvements in or relating to descaling tools
GB1091431A (en) Improvements in or relating to a pneumatic motor of the reciprocable type
GB618546A (en) Improvements in or relating to fluid pressure operated engines, such as pneumatic picks or concrete breakers
GB942951A (en) Improvements in or relating to motor driven hammers and like percussion tools
GB770654A (en) Improvements relating to percussive tools
GB1537327A (en) Portable percussion hammer
GB547814A (en) Improvements in and relating to power hammers
SE7410147L (en) COMPRESSED AIR POWERED IMPACTING TOOL
GB920160A (en) Percussive tool
GB894072A (en) Improvements in or relating to motor-driven percussion tools, such as hammers
GB991533A (en) Improvements in percussion drills
GB1456771A (en) Sledgehammer
GB1124527A (en) Improvements in or relating to percussive tools and machines
IE37177L (en) Percussion apparatus
GB866645A (en) Improvements in hand-guidable motor-driven implements
GB1467215A (en) Motor driven percussive hammer
GB1124526A (en) Improvements in or relating to percussive tools and machines
GB677900A (en) Improvements relating to pneumatic motors