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Work Implement

A kind of equipment and operation technology, which is applied in agriculture, forestry, wood processing equipment, etc., can solve the problems of unstable connection and other problems, and achieve a good buffering effect

Pending Publication Date: 2021-12-31
ANDREAS STIHL AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thereafter, further operation of the work implement can quickly lead to destabilization of the connection between the stud and the housing part

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0031] figure 1 A handheld work tool 1 is shown. The hand-held working tool 1 is a motor chainsaw. The work tool 1 has a handle 9 and a guide rail 8 , on which the saw chain 7 is guided around. The handle 9 is arranged at the rear side of the housing 31 of the motor chain saw. The guide rail 8 protrudes away from the housing 31 of the motor chain saw at the front side of the housing 31 . The guide rail 8 and the saw chain 7 together form the tool 4 of the work implement 1 . Tool 4 has the figure 2 The opening 5 shown in. The opening 5 is formed in the guide rail 8 . At least one stud 3 protrudes through the opening 5 . A fixing element 32 screwed at the stud 3 tensions the guide rail 8 against the housing 31 . The fixing element 32 is a nut in the exemplary embodiment.

[0032] As shown in 2 , work implement 1 has a housing part 2 which forms part of a housing 31 . A motor (not shown) for driving the saw chain 7 is fastened to the housing part 2 . In the exemplary ...

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Abstract

The invention relates to a working implement comprising a tool (4), a housing part (2) and a stud bolt (3) screwed into the housing part (2) for fastening the tool (4) to the housing part (2). The stud bolt (3) protrudes from the housing part (2) in an axial direction (50). The tool (4) has an opening (5) into which the stud bolt (3) at least partially protrudes. The working instrument (1) has a transmission element for transmitting a transverse force acting transversely to the axial direction (50) from the tool (4) to the stud bolt (3). The transmission element is designed as a first element (10) and at least partially made of a first material having an elastic modulus of 1 GPa to 80 GPa or the transmission element is designed as a second element (20) and has an elastic element (21) at least partially made of a second material having an elastic modulus greater than 80 GPa and a free space (22) for an elastic stroke of the elastic element (21).

Description

technical field [0001] The present invention relates to work implements. Background technique [0002] From GB 2481037 A a work implement is known with stud bolts (Stehbolzen, sometimes called support bolts), on which a guide rail with a saw chain is fastened as a tool. A sleeve made of silicon is arranged between the guide rail and the stud. The studs are fastened in the housing part of the work implement. During operation of the work implement, forces are transmitted from the guide rail to the stud. These forces can damage the connection between the stud and the housing part and in extreme cases even cause the stud to loosen from the housing part. [0003] In GB 2481037 A a sleeve made of silicon is provided for this force damping. The sleeve wears rapidly during operation, the damping effect of the sleeve being reduced or completely eliminated. Further operation of the work implement can then quickly lead to destabilization of the connection between the stud and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D57/02F16F15/04F16F15/06F16F15/08B25F5/00
CPCB23D57/02F16F15/04F16F15/06F16F15/08B25F5/00B27B17/0033A01G3/085A01G23/091B27B17/02
Inventor B·波斯納
Owner ANDREAS STIHL AG & CO KG