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GB2273258A - A cutting tool - Google Patents

A cutting tool

Info

Publication number
GB2273258A
GB2273258A GB9325989A GB9325989A GB2273258A GB 2273258 A GB2273258 A GB 2273258A GB 9325989 A GB9325989 A GB 9325989A GB 9325989 A GB9325989 A GB 9325989A GB 2273258 A GB2273258 A GB 2273258A
Authority
GB
United Kingdom
Prior art keywords
blades
cam
transmission
cutting tool
driven
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
GB9325989A
Other versions
GB2273258B (en
GB9325989D0 (en
Inventor
Keith Lodge
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9325989D0 publication Critical patent/GB9325989D0/en
Publication of GB2273258A publication Critical patent/GB2273258A/en
Application granted granted Critical
Publication of GB2273258B publication Critical patent/GB2273258B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B25D11/10—Means for driving the impulse member comprising a cam mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/275—Tools having at least two similar components
    • B25D2250/285—Tools having three or more similar components, e.g. three motors
    • B25D2250/291—Tools having three or more parallel bits, e.g. needle guns

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Harvester Elements (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A motorized chisel has a cutting edge (7) designed by a plurality of blades (6) arranged in contacting side-by-side relationship. The blades are driven individually by an electric motor (11) acting through a cam transmission (29). The blades are held in cutter head (4) which requires to be retracted against spring load (24) in order to engage the transmission. The blades are driven with a percussive force and a cam follower striker plate (30) may be provided between each cam and its associated blade. <IMAGE>
GB9325989A 1990-06-27 1993-12-20 A cutting tool Expired - Fee Related GB2273258B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909014265A GB9014265D0 (en) 1990-06-27 1990-06-27 A cutting tool
PCT/GB1991/001029 WO1992000165A1 (en) 1990-06-27 1991-06-25 A cutting tool

Publications (3)

Publication Number Publication Date
GB9325989D0 GB9325989D0 (en) 1994-03-16
GB2273258A true GB2273258A (en) 1994-06-15
GB2273258B GB2273258B (en) 1995-01-04

Family

ID=10678262

Family Applications (2)

Application Number Title Priority Date Filing Date
GB909014265A Pending GB9014265D0 (en) 1990-06-27 1990-06-27 A cutting tool
GB9325989A Expired - Fee Related GB2273258B (en) 1990-06-27 1993-12-20 A cutting tool

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB909014265A Pending GB9014265D0 (en) 1990-06-27 1990-06-27 A cutting tool

Country Status (3)

Country Link
AU (1) AU8058991A (en)
GB (2) GB9014265D0 (en)
WO (1) WO1992000165A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708508B1 (en) * 1993-08-02 1995-11-03 Valentin Herve Tool with parallel corners for splitting wood.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191002371A (en) * 1910-01-31 1911-01-31 Frederick Augustus Grearson Improvements in and relating to Chisels.
NL143574B (en) * 1948-09-08 1952-11-15 Ici Ltd METHOD FOR STABILIZING A POLYALKEEN.
EP0024837A1 (en) * 1979-08-13 1981-03-11 Linear Pneumatics Inc. Method of removing stuck gaskets and pneumatic impact tool therefor
FR2508369A1 (en) * 1981-06-24 1982-12-31 Atlas Copco Ab PORTABLE PERCUSSION TOOL WITH DAMPED VIBRATIONS
CH644050A5 (en) * 1981-06-19 1984-07-13 Arx Ag Percussion tool for cleaning surfaces - has metal tube cylinder inside injected plastics muff
DE3402010A1 (en) * 1984-01-21 1985-07-25 Gustav 6100 Darmstadt Möckel Working appliance to be operated by hand

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191002371A (en) * 1910-01-31 1911-01-31 Frederick Augustus Grearson Improvements in and relating to Chisels.
NL143574B (en) * 1948-09-08 1952-11-15 Ici Ltd METHOD FOR STABILIZING A POLYALKEEN.
EP0024837A1 (en) * 1979-08-13 1981-03-11 Linear Pneumatics Inc. Method of removing stuck gaskets and pneumatic impact tool therefor
CH644050A5 (en) * 1981-06-19 1984-07-13 Arx Ag Percussion tool for cleaning surfaces - has metal tube cylinder inside injected plastics muff
FR2508369A1 (en) * 1981-06-24 1982-12-31 Atlas Copco Ab PORTABLE PERCUSSION TOOL WITH DAMPED VIBRATIONS
DE3402010A1 (en) * 1984-01-21 1985-07-25 Gustav 6100 Darmstadt Möckel Working appliance to be operated by hand

Also Published As

Publication number Publication date
GB2273258B (en) 1995-01-04
WO1992000165A1 (en) 1992-01-09
AU8058991A (en) 1992-01-23
GB9014265D0 (en) 1990-08-15
GB9325989D0 (en) 1994-03-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960625