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Mechanical chain saw

A chain saw and motorized technology, used in chainsaws, sawing equipment, sawing machines, etc., can solve the problems of loosening, inconvenient operation, and unsafety, and achieve the goal of eliminating loosening of tensioning devices, eliminating potential safety hazards and reducing costs. Effect

Inactive Publication Date: 2007-07-18
孙鹤鸣
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mechanism requires a special adjustment tool to adjust, the operation is very inconvenient, and there are serious unsafe factors at the same time, that is, this type of tensioning device will become loose due to the vibration of the chain saw, which increases the risk of the saw chain falling from the chain plate
[0003] At present, there are a small number of tool-free chainsaw tensioning devices, such as the tensioning device with the patent number ZL01261006.6. One knob drives the cam to push the chain plate to tension the saw chain, and the other knob drives the fastener to lock the chain plate. This mechanism has the disadvantages of complex structure and high cost, and also has the potential safety hazard of the tensioning device loosening due to vibration

Method used

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  • Mechanical chain saw

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Embodiment Construction

[0011] Implementation of the present invention will be further described below in conjunction with accompanying drawing:

[0012] As shown in Figures 1 and 2, a motorized chain saw has a housing (7), a sprocket (4) and a chain plate (1) aligned with the sprocket (4), the chain plate (1) Protruding from the housing (7) and guiding the saw chain cycle, a tensioning device moves the chain plate (1) longitudinally relative to the housing (7) and the sprocket (4) to adjust the tension of the saw chain force and make the chain plate (1) locked and fixed. The tensioning device comprises a push pull (2) fixed on the chain plate (1), a knob (19) and a cam (8). The internal thread (17) is tightly connected with the knob (19), and the internal thread diameter of the internal thread (17) is the same as the external thread diameter of the frame bolt (5), and the tooth bar (18) is inserted in the knob (19) and It is pressed by screws (22), springs (21), and limit pins (20) and can slide u...

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Abstract

The present invention relates to a mechanical chain saw, in particular, it relates to a tension device of saw chain. Said tension device of saw chain includes the following several portions: knob, internally ribbed component, circular disk, cam, tooth jaw, pushing board, ring projection and rack. Said invention also provides their connection mode, and also provides the working principle of said tensioner device and its operation method.

Description

technical field [0001] The invention relates to a motorized chain saw, in particular to a saw chain tensioning device of the chain saw. Background technique [0002] The saw chain of the chain saw is prone to elongation due to reasons such as use and temperature rise, and it is necessary to re-adjust the tension of the saw chain and re-lock it. A large number of existing chain saw tensioning devices mostly use screw and screw structures. The screw moves the screw, which drives the chain plate to tension the saw chain. This mechanism needs special-purpose adjusting tool to adjust, and operation is very inconvenient, also has serious unsafe factor simultaneously, is exactly that this type of tensioning device can appear loose because of chain saw vibration, has increased the danger that saw chain falls from chain plate. [0003] At present, there are a small number of tool-free chainsaw tensioning devices, such as the tensioning device with the patent number ZL01261006.6. One...

Claims

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Application Information

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IPC IPC(8): B23D57/02B27B17/14
Inventor 孙鹤鸣
Owner 孙鹤鸣
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