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GB2052346B - Rotary hammer drills - Google Patents

Rotary hammer drills

Info

Publication number
GB2052346B
GB2052346B GB8018295A GB8018295A GB2052346B GB 2052346 B GB2052346 B GB 2052346B GB 8018295 A GB8018295 A GB 8018295A GB 8018295 A GB8018295 A GB 8018295A GB 2052346 B GB2052346 B GB 2052346B
Authority
GB
United Kingdom
Prior art keywords
rotary hammer
hammer drills
drills
rotary
hammer
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
GB8018295A
Other versions
GB2052346A (en
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.)
Kango Electric Hammers Ltd
Original Assignee
Kango Electric Hammers Ltd
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 Kango Electric Hammers Ltd filed Critical Kango Electric Hammers Ltd
Priority to GB8018295A priority Critical patent/GB2052346B/en
Publication of GB2052346A publication Critical patent/GB2052346A/en
Application granted granted Critical
Publication of GB2052346B publication Critical patent/GB2052346B/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
    • B25D11/005—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
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/006—Mode changers; Mechanisms connected thereto

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
GB8018295A 1979-06-18 1980-06-04 Rotary hammer drills Expired GB2052346B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8018295A GB2052346B (en) 1979-06-18 1980-06-04 Rotary hammer drills

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7921151 1979-06-18
GB8018295A GB2052346B (en) 1979-06-18 1980-06-04 Rotary hammer drills

Publications (2)

Publication Number Publication Date
GB2052346A GB2052346A (en) 1981-01-28
GB2052346B true GB2052346B (en) 1983-02-02

Family

ID=26271875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8018295A Expired GB2052346B (en) 1979-06-18 1980-06-04 Rotary hammer drills

Country Status (1)

Country Link
GB (1) GB2052346B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1256950A1 (en) * 1983-09-06 1986-09-15 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Механизированного И Ручного Строительно-Монтажного Инструмента,Вибраторов И Строительно-Отделочных Машин Percussive compression/vacuum machine
DE3414898C1 (en) * 1984-04-19 1985-11-28 Black & Decker Inc., Newark, Del. Device for switching between different operating states of a machine tool, in particular an electric tool
DE3539030A1 (en) * 1985-11-02 1987-05-07 Hilti Ag DRILLING HAMMER WITH PNEUMATICALLY DRIVEN PISTON
US5954140A (en) * 1997-06-18 1999-09-21 Milwaukee Electric Tool Corporation Rotary hammer with improved pneumatic drive system
DE202006004288U1 (en) * 2006-03-17 2006-05-11 Borries Markier-Systeme Gmbh Manual embossing device with pneumatic drive

Also Published As

Publication number Publication date
GB2052346A (en) 1981-01-28

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee