GB1224822A - Improvements in or relating to portable chain saws - Google Patents

Improvements in or relating to portable chain saws

Info

Publication number
GB1224822A
GB1224822A GB1257669A GB1257669A GB1224822A GB 1224822 A GB1224822 A GB 1224822A GB 1257669 A GB1257669 A GB 1257669A GB 1257669 A GB1257669 A GB 1257669A GB 1224822 A GB1224822 A GB 1224822A
Authority
GB
United Kingdom
Prior art keywords
unit
handle
pocket
saw
saw body
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
GB1257669A
Inventor
David Rudelhoff Johnson
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.)
DANARM Ltd
Original Assignee
DANARM 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 DANARM Ltd filed Critical DANARM Ltd
Priority to GB1257669A priority Critical patent/GB1224822A/en
Publication of GB1224822A publication Critical patent/GB1224822A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0033—Devices for attenuation of vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Harvesting Machines For Specific Crops (AREA)

Abstract

1,224,822. Chain saws. DANARM Ltd. 16 Jan., 1970 [10 March, 1969], No. 12576/69. Heading B5L. A portable chain saw has a handle assembly, Fig. 2, comprising a rear handle unit 11 resiliently connected to the rear end of the saw body 10 by means of a coil spring 24, a forward handle 12 connected to the forward part of the body 10 by means of coil springs 17, and a rigid member 13 interconnecting the unit 11 and handle 12 to form a substantially rigid structure. Means are also provided which serve to limit the extent of floating movement of the handle assembly relative to the body 10 and which normally perform no handle supporting function but serve to prevent disconnection of the unit 11 from the saw body 10 in the event of failure or collapse of the coil spring 24. As described, the spring 24 is received in a pocket 19, Fig. 4, of the unit 11, and is attached to the unit 11 and to a lug 20 on the saw body. The lug 20 carries a dowel pin 21 the ends of which are received within enlarged apertures in the walls of the pocket 19, so that relative movement of the pocket 19 and saw body is limited by engagement of the pin 21 with grommets 23 forming the aperture walls. The handle 12 is L-shaped and the unit 11 may include a throttle control connected to the body 10 by a flexible cable. (For Figures see next page)
GB1257669A 1969-03-10 1969-03-10 Improvements in or relating to portable chain saws Expired GB1224822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1257669A GB1224822A (en) 1969-03-10 1969-03-10 Improvements in or relating to portable chain saws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1257669A GB1224822A (en) 1969-03-10 1969-03-10 Improvements in or relating to portable chain saws

Publications (1)

Publication Number Publication Date
GB1224822A true GB1224822A (en) 1971-03-10

Family

ID=10007193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257669A Expired GB1224822A (en) 1969-03-10 1969-03-10 Improvements in or relating to portable chain saws

Country Status (1)

Country Link
GB (1) GB1224822A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751908A1 (en) * 1996-08-01 1998-02-06 Stihl Andreas HAND-HELD PORTABLE MACHINE COMPRISING A REAR HANDLE
FR2872445A1 (en) * 2004-07-01 2006-01-06 Stihl Ag & Co Kg Andreas MANUALLY GUIDED WORK APPARATUS
EP2858777A4 (en) * 2012-06-12 2016-06-22 Husqvarna Ab Electric cutting system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2751908A1 (en) * 1996-08-01 1998-02-06 Stihl Andreas HAND-HELD PORTABLE MACHINE COMPRISING A REAR HANDLE
US6016604A (en) * 1996-08-01 2000-01-25 Andreas Stihl Ag & Co. Portable, hand-guided working tool with a rear grip
FR2872445A1 (en) * 2004-07-01 2006-01-06 Stihl Ag & Co Kg Andreas MANUALLY GUIDED WORK APPARATUS
US7412959B2 (en) 2004-07-01 2008-08-19 Andreas Stihl Ag & Co. Kg Manually guided implement
DE102004031866B4 (en) * 2004-07-01 2015-09-10 Andreas Stihl Ag & Co. Kg Hand-held implement
EP2858777A4 (en) * 2012-06-12 2016-06-22 Husqvarna Ab Electric cutting system
US9656336B2 (en) 2012-06-12 2017-05-23 Husqvarna Ab Electric cutting system
US10486250B2 (en) 2012-06-12 2019-11-26 Husqvarna Ab Electric cutting system

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