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Chainsaw

A technology of chain saws and chain links, applied in the field of chain saws, which can solve the problems of troublesome assembly, wear or dirt of chain saws

Inactive Publication Date: 2013-04-24
PRINZ GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, wear or contamination can occur on both sealing surfaces
In addition, the assembly of the chain saw is very labor-intensive due to the sealing rings that are inserted separately between the chain links

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0039] exist figure 1 The chain link 1 shown in has riveting openings 2 , via which the other chain links are articulated with rivet bolts 3 . The annular seal 4 formed on the chain link 1 according to the invention is located around the riveting hole 2 .

[0040] Chain links for chainsaws have a special force distribution. The rivet in the riveting hole is subjected to a tensile load which is transferred from the link to the rivet. As a result, significant bending moments are generated, which are absorbed by the short, solid, pin-like structure. The two chain links have riveting holes, which themselves are under high tensile stress.

[0041] These tension-induced forces are superimposed by additional forces due to the hemming of the chain during lateral loading, which also have to be absorbed by the rivet edge and the side of the link. If the seal is to function for a long time, the forces and the different load patterns must be considered.

[0042] In order not to rapid...

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PUM

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Abstract

The invention relates to a chainsaw having chain links (1), such as chain links and connecting links, wherein the chain links (1) comprise rivet openings (2), in which pins (3) are disposed that form jointed connections between the chain links (1), and wherein at least one sealing means (4) is provided around each of the rivet openings (2) between the surfaces of the chain links (1) facing each other, and wherein the sealing means (4) is also directly connected on a chain link (1) and thus only one sealing surface is formed against the chain link positioned on the opposite side. The invention further relates to a method for the production of a chainsaw having the above mentioned chain links (1).

Description

technical field [0001] The invention relates to a chain saw with chain links, such as saw links and connecting links The links have riveting holes Arranged therein are rivet bolts which form the articulated connection between the chain links, and at least one sealing measure is provided around each rivet opening between mutually facing chain link surfaces. The invention also relates to a method for machining a chainsaw. Background technique [0002] It is known that chain links are equipped with sealing measures around each riveting hole, wherein a sealing ring inserted into a groove is provided as a sealing measure. The disadvantage is that there are two sealing surfaces between the sealing ring and the two chain links. As a result, wear or contamination can occur on both sealing surfaces. Furthermore, the assembly of the chain saw is very complex since sealing rings have to be inserted between the chain links in each case. Contents of the invention [0003] It is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27B33/14
CPCB27B33/14Y10T83/909
Inventor K·普罗丁格W·纽迈耶I·弗赖索夫尼格
Owner PRINZ GMBH & CO KG
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