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Guard means for a saw and method of use thereof

A technology of protective device and saw blade, which is applied in the attachment device of sawing machine, circular saw, sawing equipment, etc., can solve the problem of increasing the accidental contact between the saw blade and the user, etc.

Active Publication Date: 2012-12-05
研究设计开发普乐士有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is a potentially dangerous operation because a relatively large portion of the saw blade is exposed to the user before and during use, thereby increasing the likelihood of accidental contact of the saw blade with the user

Method used

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  • Guard means for a saw and method of use thereof
  • Guard means for a saw and method of use thereof
  • Guard means for a saw and method of use thereof

Examples

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Comparison scheme
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Embodiment Construction

[0069] The following embodiments illustrate examples of guards for power saws, especially hand-held electric circular saws, according to the present invention. The guard is arranged to cover at least the cutting edge of the saw blade engaged to the saw in the stored or first position, and the guard is provided with at least two movable parts to limit exposure of the saw blade in the cutting or second position. to the user's area.

[0070] The two movable guard parts move relative to the fixed guard part of the guard to allow the cutting edge of the saw blade to contact the workpiece in the second position. This arrangement is particularly advantageous when the saw is used in a generally downward direction relative to the workpiece, as it allows cutting to be made in the workpiece on a generally tight axis, and / or allows for safer cutting on the workpiece. Plunge sawing.

[0071] see first figure 1 , shows a perspective view of a handheld circular power saw 2 . The saw comp...

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PUM

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Abstract

Guard means are provided for a saw. A first part (16) of the guard means is movable relative to a body of the saw (4) and / or a saw blade (6) in use between a first position (figure 1), wherein at least a portion of the saw blade is substantially covered by the guard means, and at least a second position (figure 2), wherein at least a portion of the saw blade becomes exposed. The guard means further includes at least a second part (18) that is movable relative to said saw body and / or saw blade in use.

Description

technical field [0001] The present invention relates to guards for saws, saws including guards and methods of use thereof. Background technique [0002] Although the following description relates primarily to electric circular saws, wherein in use an electric motor is used to rotate the circular saw blade relative to the saw housing, those skilled in the art will appreciate that the features of the present invention can also be used in applications such as chain saws, hand saws, etc. Other types of saws etc. [0003] It is known to provide guards for saw blades, and in particular for hand-held electric circular saws. Conventional shields are generally arranged such that in use at least a part of the shield is movable between a first position and a second position. In the first position, the guard generally covers or provides a barrier around a portion of the cutting edge of the saw blade, thereby preventing a user from accidentally contacting the saw blade. The guard typi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27G19/04B23D59/00B27F5/02B27B9/02
CPCB27F5/023B27G19/04
Inventor M・尼科尔森R・费思
Owner 研究设计开发普乐士有限公司