GB866645A - Improvements in hand-guidable motor-driven implements - Google Patents

Improvements in hand-guidable motor-driven implements

Info

Publication number
GB866645A
GB866645A GB40092/58A GB4009258A GB866645A GB 866645 A GB866645 A GB 866645A GB 40092/58 A GB40092/58 A GB 40092/58A GB 4009258 A GB4009258 A GB 4009258A GB 866645 A GB866645 A GB 866645A
Authority
GB
United Kingdom
Prior art keywords
casing
sleeve
impact weight
crank rod
weight
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
GB40092/58A
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.)
CONRAD PETER WACKER
Original Assignee
CONRAD PETER WACKER
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 CONRAD PETER WACKER filed Critical CONRAD PETER WACKER
Publication of GB866645A publication Critical patent/GB866645A/en
Expired legal-status Critical Current

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
    • B25D9/06—Means for driving the impulse member
    • B25D9/10—Means for driving the impulse member comprising a built-in internal-combustion engine

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

866,645. Percussive tools. WACKER, H., and WACKER, C. P. Dec. 12, 1958 [Dec. 12, 1957], No. 40092/58. Class 124. A hand guided percussive tool comprises a casing, an impact weight reciprocable within the casing, a driver reciprocable within the casing, spring means between the driver and the impact weight for moving the impact weight in the direction of striking and an internal combustion engine interchangeably mounted on the casing for reciprocating the driver. As shown, an internal combustion engine 2 interchangeably mounted on a casing 1 drives through gearing a crank rod 13 connected by a pivot pin 21 to a cover 14 of a sleeve 15 guided in a portion 4 of the casing. The sleeve 15 is closed at end opposite the cover 14 and has two springs 18, 19 between which an axially displaceable impact weight 17 is located. A striker 6 attached to the weight extends through the lower cover of the sleeve 15 and strikes a tool steel 3. In a modification, Fig. 2 (not shown), the crank rod is attached to a piston within the sleeve and the latter becomes the impact weight. In another modification, Fig. 3 (not shown) the crank rod is connected by a helical spring to the impact weight which reciprocates in the casing 4. In a further modification, Fig. 4, the crank rod 13 is pivoted to a piston 20 having a piston rod 22 which passes into a hollow sleeve forming the impact weight and is retained by a lower bush 261 which, together with an upper bush 25<SP>1</SP> slides in a bore in the sleeve, the bushes being separated by a spring 271.
GB40092/58A 1957-12-12 1958-12-12 Improvements in hand-guidable motor-driven implements Expired GB866645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US866645XA 1957-12-12 1957-12-12

Publications (1)

Publication Number Publication Date
GB866645A true GB866645A (en) 1961-04-26

Family

ID=22200064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40092/58A Expired GB866645A (en) 1957-12-12 1958-12-12 Improvements in hand-guidable motor-driven implements

Country Status (1)

Country Link
GB (1) GB866645A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220647B (en) * 1963-08-02 1966-07-07 Wacker Hermann Hand-operated, motor-driven work equipment with reciprocating work or. Flapping movement
EP1454718A1 (en) * 2001-11-09 2004-09-08 Yamada Machinery Industrial Co., Ltd. Engine braker
GB2423049A (en) * 2005-02-10 2006-08-16 Black & Decker Inc Hammer with striker connected to pivoting arm by spring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220647B (en) * 1963-08-02 1966-07-07 Wacker Hermann Hand-operated, motor-driven work equipment with reciprocating work or. Flapping movement
EP1454718A1 (en) * 2001-11-09 2004-09-08 Yamada Machinery Industrial Co., Ltd. Engine braker
EP1454718A4 (en) * 2001-11-09 2009-06-17 Yamada Machinery Ind Co Ltd Engine braker
GB2423049A (en) * 2005-02-10 2006-08-16 Black & Decker Inc Hammer with striker connected to pivoting arm by spring

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