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Chain guard and chainsaw system

A chain cover and chain saw technology, which is applied in sawing equipment, sawing machine devices, sawing components, etc., can solve the problems of chain cover falling off, lack of clamping force, cutting kit is not completely covered, etc., and achieve the effect of reliable maintenance

Active Publication Date: 2013-12-18
ANDREAS STIHL AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It is disadvantageous to insert a chain guard that is too short on a cutting kit that is too long, because the cutting kit is not completely covered here
Conversely, with a chain guard that is too long on a shorter cutting set, too little or no clamping force is observed, which in connection with a poor fit (passform) can lead to the chain guard falling off

Method used

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  • Chain guard and chainsaw system
  • Chain guard and chainsaw system
  • Chain guard and chainsaw system

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] figure 1 In a perspective view is shown a chainsaw system embodied according to the invention comprising different, replaceable cutting sets 2, 2' with different lengths L, L' (which are in Figure 2 to Figure 8 The chain saw 1 shown in ). Furthermore, the chain saw system has a chain guard 3 which can be pushed onto the corresponding cutting set 2, 2' ( Figure 2 to Figure 8 )superior.

[0030] The chain saw 1 has a motor housing 22 in which a drive motor (not shown in detail) is arranged. Furthermore, a front handle 23 and a rear handle 24 are arranged on the motor housing 22 for guiding the chain saw 1 during sawing.

[0031]The chain guard 3 is designed as a box closed all around made of plastic with a wall thickness of approximately 1.5 mm and has two opposite side walls 5 , 6 and a circumferential peripheral wall 25 on the narrow side. As the only exception to the otherwise overall closed construction, the chain guard 3 is provided on its side facing the motor...

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PUM

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Abstract

The application relates to a chain guard for a chainsaw with interchangeable cutting attachments of different lengths, said cutting attachments having cutting chains, wherein the chain guard comprises an insertion opening for inserting a cutting attachment, at least two side walls for covering lateral surfaces of the cutting attachment, a front end opposite the insertion opening, a first latching depression formed in at least one side wall, and a second latching depression formed in at least one side wall at a distance closer toward the insertion opening with respect to the first latching depression, wherein the first latching depression and the second latching depression each comprise an arcuate latching surface for latching in a form-fitting manner with a cutting chain of the cutting attachment, said latching being active in the direction of a longitudinal axis of the chain guard, and also to a chainsaw system having such a chain guard.

Description

technical field [0001] The invention relates to a chain guard (Kettenschutz) for a cutting set (Schneidgarnitur) of the type specified in the preamble of claim 1 and to a chain saw system with such a chain guard. Background technique [0002] Motor-driven chain saws of a common design comprise a cutting unit with a cutting chain that can be driven by the drive motor of the chain saw and with guide rails on which the cutting chain runs around the outer edge. For transporting or supporting the chainsaw, the chain guard is pushed onto the cutting set, the chain guard has a penetration opening for the cutting set in a typical design and is also designed with a cover for covering the cutting set A closed box with two opposite side walls on the side. Due to the overall closed design of the chain guard except for the insertion opening, the cutting set is covered as a whole. On the one hand, the cutting set is thus protected against external influences, such as contamination or th...

Claims

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Application Information

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IPC IPC(8): B23D59/00B23D57/02
CPCB27G19/003
Inventor B.舍尔
Owner ANDREAS STIHL AG & CO KG
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