SE7410147L - COMPRESSED AIR POWERED IMPACTING TOOL - Google Patents

COMPRESSED AIR POWERED IMPACTING TOOL

Info

Publication number
SE7410147L
SE7410147L SE7410147A SE7410147A SE7410147L SE 7410147 L SE7410147 L SE 7410147L SE 7410147 A SE7410147 A SE 7410147A SE 7410147 A SE7410147 A SE 7410147A SE 7410147 L SE7410147 L SE 7410147L
Authority
SE
Sweden
Prior art keywords
chamber
piston
shank
aug
head
Prior art date
Application number
SE7410147A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE383281B (en
Inventor
S R Andersson
H Elmessaar
Original Assignee
Atlas Copco Ab
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 Atlas Copco Ab filed Critical Atlas Copco Ab
Priority to SE7410147A priority Critical patent/SE383281B/en
Priority to FI752198A priority patent/FI62481C/en
Priority to JP9507575A priority patent/JPS5142176A/en
Priority to DE19752535106 priority patent/DE2535106C3/en
Priority to GB3314875A priority patent/GB1480863A/en
Priority to FR7524775A priority patent/FR2281193A1/en
Publication of SE7410147L publication Critical patent/SE7410147L/en
Publication of SE383281B publication Critical patent/SE383281B/en
Priority to US05/776,741 priority patent/US4074777A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • 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
    • B25D17/24—Damping the reaction force

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)

Abstract

1480863 Pneumatic tools ATLAS COPCO AB 8 Aug 1975 [8 Aug 1974] 33148/75 Heading B4C A pneumatic impact tool comprises a differential hammer piston with a head 27 and reduced shank portion 26 which slides in a constricted cylinder portion 30 thus forming a chamber 37, a further chamber 36 being formed between the piston head 27 and the tool 23 and slidable sleeve 18 surrounding it. In use chamber 37 is constantly pressurized from supply 46 and chamber 43. As the piston moves forwards holes 33 in the shank 26 allow pressure air into the shank at 31 and this passes through bore 34 to chamber 36 and an accumulator 42. Due to the differential shape of the piston it is forced backwards until holes 33 in the shank pass constriction 30 and vent the space 36 to atmosphere through outlet 40. The pressure in chamber 37 can again force the piston forwards. A cushioning spring may be provided between sleeve 18 and end cap 17 to absorb vibration. A catch 25 retains the drill steel.
SE7410147A 1974-08-08 1974-08-08 COMPRESSED AIR POWERED IMPACTING TOOL SE383281B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE7410147A SE383281B (en) 1974-08-08 1974-08-08 COMPRESSED AIR POWERED IMPACTING TOOL
FI752198A FI62481C (en) 1974-08-08 1975-07-31 TRYCKLUFTDRIVET SLAGVERKTYG
JP9507575A JPS5142176A (en) 1974-08-08 1975-08-06 KIDOSHOGEKIKOGU
DE19752535106 DE2535106C3 (en) 1974-08-08 1975-08-06 Pneumatic impact tool, in particular chisel hammer
GB3314875A GB1480863A (en) 1974-08-08 1975-08-08 Pneumatic impact tool
FR7524775A FR2281193A1 (en) 1974-08-08 1975-08-08 PNEUMATIC PERCUSSION TOOLS
US05/776,741 US4074777A (en) 1974-08-08 1977-03-11 Pneumatic impact tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7410147A SE383281B (en) 1974-08-08 1974-08-08 COMPRESSED AIR POWERED IMPACTING TOOL

Publications (2)

Publication Number Publication Date
SE7410147L true SE7410147L (en) 1976-02-09
SE383281B SE383281B (en) 1976-03-08

Family

ID=20321850

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7410147A SE383281B (en) 1974-08-08 1974-08-08 COMPRESSED AIR POWERED IMPACTING TOOL

Country Status (6)

Country Link
JP (1) JPS5142176A (en)
DE (1) DE2535106C3 (en)
FI (1) FI62481C (en)
FR (1) FR2281193A1 (en)
GB (1) GB1480863A (en)
SE (1) SE383281B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE404151B (en) * 1977-10-17 1978-09-25 Atlas Copco Ab DEVICE FOR POWER CONTROL OF A PNEUMATIC ENGINE
DE3066499D1 (en) * 1979-08-13 1984-03-15 Linear Pneumatics Inc Method of removing stuck gaskets and pneumatic impact tool therefor
KR200190765Y1 (en) * 2000-03-03 2000-08-01 유성권 A chisel for hammer drill
SE537608C2 (en) 2013-11-01 2015-07-28 Tools Pc Ab Const Pneumatic impact device and method of pneumatic impact device

Also Published As

Publication number Publication date
GB1480863A (en) 1977-07-27
DE2535106A1 (en) 1976-02-19
FI62481B (en) 1982-09-30
FI752198A (en) 1976-02-09
JPS5142176A (en) 1976-04-09
FI62481C (en) 1983-01-10
FR2281193B1 (en) 1981-04-30
SE383281B (en) 1976-03-08
DE2535106C3 (en) 1978-09-21
JPS5432988B2 (en) 1979-10-17
DE2535106B2 (en) 1978-01-19
FR2281193A1 (en) 1976-03-05

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