SE8401580L - WORKING COMPRESSION VACUUM MACHINE WORKING - Google Patents

WORKING COMPRESSION VACUUM MACHINE WORKING

Info

Publication number
SE8401580L
SE8401580L SE8401580A SE8401580A SE8401580L SE 8401580 L SE8401580 L SE 8401580L SE 8401580 A SE8401580 A SE 8401580A SE 8401580 A SE8401580 A SE 8401580A SE 8401580 L SE8401580 L SE 8401580L
Authority
SE
Sweden
Prior art keywords
hammer
cylinder
working
casing
trapping
Prior art date
Application number
SE8401580A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8401580D0 (en
Inventor
I A Prokhorov
V P Balandin
J N Kolgan
Original Assignee
Vni I Pk I Mekh I Ruch
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 Vni I Pk I Mekh I Ruch filed Critical Vni I Pk I Mekh I Ruch
Publication of SE8401580D0 publication Critical patent/SE8401580D0/en
Publication of SE8401580L publication Critical patent/SE8401580L/en

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
    • B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

A compression-vacuum action percussive machine comprises a casing (1), a drive (2) secured inside the casing (1), a pick tool (3), and a cylinder (4). The cylinder (4) accommodates a piston (5) connected to the drive (2), and a hammer (6) engageable with the pick tool (3). The machine also comprises a means for trapping the hammer (6) for the machine to idle, this hammer trapping means being part of the cylinder (4) secured inside the casing (1). The trapping means has an axial clearance (12) and a radial clearance (11) relative to the casing (1) to define a free end of the cylinder (4) having section (13) of a diameter substantially smaller than the diameter of the hammer (6). Longitudinal slots (14) divide the wall of the cylinder (4) into resilient lobes (16) which constitute the trapping means. The invention provides reliable trapping of the hammer (16) when changing from working to idling, in the normal working position or in the <IMAGE>
SE8401580A 1983-04-01 1984-03-21 WORKING COMPRESSION VACUUM MACHINE WORKING SE8401580L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU833575850A SU1178583A1 (en) 1983-04-01 1983-04-01 Percussive-action compression-vacuum machine

Publications (2)

Publication Number Publication Date
SE8401580D0 SE8401580D0 (en) 1984-03-21
SE8401580L true SE8401580L (en) 1984-10-02

Family

ID=21057885

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8401580A SE8401580L (en) 1983-04-01 1984-03-21 WORKING COMPRESSION VACUUM MACHINE WORKING

Country Status (7)

Country Link
CH (1) CH663175A5 (en)
CS (1) CS258419B1 (en)
DD (1) DD252511A3 (en)
DE (1) DE3411280A1 (en)
GB (1) GB2138729B (en)
SE (1) SE8401580L (en)
SU (1) SU1178583A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3624153A1 (en) * 1986-07-17 1988-01-28 Bosch Gmbh Robert MOTORIZED HAMMER
SU1617139A1 (en) * 1988-08-09 1990-12-30 Московское Научно-Производственное Объединение По Механизированному Строительному Инструменту И Отделочным Машинам Compression-vacuum percussive machine
SU1662832A1 (en) * 1988-09-23 1991-07-15 Московское Научно-Производственное Объединение По Механизированному Строительному Инструменту И Отделочным Машинам Percussive machine
EP2921265A1 (en) * 2014-03-18 2015-09-23 HILTI Aktiengesellschaft Power tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791135A (en) * 1971-11-25 1973-03-01 Hilti Ag ELECTROPNEUMATIC HAMMER

Also Published As

Publication number Publication date
SU1178583A1 (en) 1985-09-15
CS258419B1 (en) 1988-08-16
DE3411280C2 (en) 1988-06-09
CH663175A5 (en) 1987-11-30
GB8408104D0 (en) 1984-05-10
DE3411280A1 (en) 1984-10-18
GB2138729A (en) 1984-10-31
DD252511A3 (en) 1987-12-23
SE8401580D0 (en) 1984-03-21
GB2138729B (en) 1986-09-24

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8401580-9

Effective date: 19881004