Tool-free adjusting device of chain saw

An adjustment device and tool-free technology, applied in chain saws, manufacturing tools, wood processing appliances, etc., can solve problems such as long bolt adjustment time, bolt damage, and difficult assembly

Inactive Publication Date: 2010-10-20
CHANGZHOU GLOBE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the adjustment bolt is used like this, the adjustment time of the bolt is long, and the bolt is easily bent and damaged by force
In addi

Method used

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  • Tool-free adjusting device of chain saw
  • Tool-free adjusting device of chain saw
  • Tool-free adjusting device of chain saw

Examples

Experimental program
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Embodiment Construction

[0027] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These figures are simplified schematic diagrams, which only illustrate the basic device of the present invention in a schematic manner, so that they only show the components relevant to the present invention.

[0028] like figure 1 , 2 , 3A, 3B, and 6, a chain saw includes a knob pressing plate 1, a driving part 2, an adjusting part 3, a fixing seat 4 and a driving motor 5, and the driving part 2 includes a tensioning knob 21 and a side cover 22 And tensioning wheel 23, described tensioning wheel 23 is fixedly connected with tensioning knob 21, and described tensioning wheel 23 is equipped with guide pin 24; Described adjusting part 3 comprises knife plate 31, chain 32 and tensioning block 33, the knife plate 31 is fixed with the tension block 33, and the tension block 33 is provided with a spiral groove 331 matched with the guide pin ...

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PUM

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Abstract

The invention relates to a tool-free adjusting device of a chain saw, comprising a knob platen, a driving part, an adjusting part and a permanent seat, wherein the driving part comprises a tensioning knob, a side cover and a tensioning wheel, the tensioning wheel is fixedly connected with the tensioning knob and is provided with a guide pin; the adjusting part comprises a cutting board, a chain and a tensioning block, wherein the cutting board and the tensioning block are fixed, the tensioning block is provided with a spiral groove patched with the guide pin, and the cutting board is provided with a guide slot; the permanent seat is provided with a chain wheel, a screw and a guide block patched with the guide slot; and the screw passes through the cutting board, the tensioning block, the tensioning wheel and the tensioning knob to be connected with the knob platen by the screw. The invention achieves the purposes of tensioning and loosening the chain in the mode of adjusting the tensioning knob and has more convenient operation and higher efficiency.

Description

technical field [0001] The invention relates to a tool-free adjustment device for an electric tool, in particular to a tool-free adjustment device for a chain saw. Background technique [0002] Chainsaws are very common power tools that are often used in other situations such as sawing trees or planks. However, after a period of use, the chain of the chain saw tends to loosen. When the chain is too loose, the chain may loosen during the cutting process, which will cause the cutting process to be unsmooth or even stop, and also shorten the service life of the chain saw. [0003] In the known chain saw, the user can adjust the tension of the chain through an auxiliary tool, so that it is tightened again on the sprocket of the chain saw. These mechanisms involve the movement of a guide bar on which the chain is supported, by lengthening the guide bar the tension of the chain is increased and conversely by shortening the guide bar the chain tension is decreased. A common mech...

Claims

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Application Information

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IPC IPC(8): B27B17/14
Inventor 王国辉
Owner CHANGZHOU GLOBE CO LTD
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