FR2261852A1 - IC engine driven hammer for machining stone and concrete - has tool bit set in oscillation by rhythmically compressed air cushion - Google Patents

IC engine driven hammer for machining stone and concrete - has tool bit set in oscillation by rhythmically compressed air cushion

Info

Publication number
FR2261852A1
FR2261852A1 FR7500712A FR7500712A FR2261852A1 FR 2261852 A1 FR2261852 A1 FR 2261852A1 FR 7500712 A FR7500712 A FR 7500712A FR 7500712 A FR7500712 A FR 7500712A FR 2261852 A1 FR2261852 A1 FR 2261852A1
Authority
FR
France
Prior art keywords
piston
piston rod
oscillation
air cushion
rhythmically
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.)
Granted
Application number
FR7500712A
Other languages
English (en)
French (fr)
Other versions
FR2261852B1 (cs
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.)
DUSS MASCHF
Original Assignee
DUSS MASCHF
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 DUSS MASCHF filed Critical DUSS MASCHF
Publication of FR2261852A1 publication Critical patent/FR2261852A1/fr
Application granted granted Critical
Publication of FR2261852B1 publication Critical patent/FR2261852B1/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
FR7500712A 1974-02-23 1975-01-10 IC engine driven hammer for machining stone and concrete - has tool bit set in oscillation by rhythmically compressed air cushion Granted FR2261852A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742408763 DE2408763A1 (de) 1974-02-23 1974-02-23 Schlaggeraet

Publications (2)

Publication Number Publication Date
FR2261852A1 true FR2261852A1 (en) 1975-09-19
FR2261852B1 FR2261852B1 (cs) 1979-09-28

Family

ID=5908257

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7500712A Granted FR2261852A1 (en) 1974-02-23 1975-01-10 IC engine driven hammer for machining stone and concrete - has tool bit set in oscillation by rhythmically compressed air cushion

Country Status (4)

Country Link
CH (1) CH575278A5 (cs)
DE (1) DE2408763A1 (cs)
FR (1) FR2261852A1 (cs)
NL (1) NL7500680A (cs)

Also Published As

Publication number Publication date
NL7500680A (nl) 1975-08-26
FR2261852B1 (cs) 1979-09-28
CH575278A5 (cs) 1976-05-14
DE2408763A1 (de) 1975-09-04

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Legal Events

Date Code Title Description
ST Notification of lapse