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Power miter saw with hinge linkage linear guides

A miter saw, electric technology, applied in the direction of sawing machine, circular saw, sawing equipment, etc., can solve the problem of fabric deterioration, ball bushing penetration, etc.

Inactive Publication Date: 2008-08-20
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although bellows or similar covering devices can be utilized to cover the rod, harsh environments often lead to deterioration of the fabric and penetration of the ball bushing by abrasive particles

Method used

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  • Power miter saw with hinge linkage linear guides
  • Power miter saw with hinge linkage linear guides
  • Power miter saw with hinge linkage linear guides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] There are shown and described five embodiments of the invention, each of which has a multi-articulated connection, here indicated as a horizontal hinged connection, which connects the saw blade and The motor assembly is interconnected to the table of the miter saw. It should be understood that although it is referred to herein as being a substantially horizontal hinged connection, the axes of the connection may not always be exactly horizontal, and may have pivot axes that may vary from exactly horizontal to The direction changes by up to about 30 degrees in either direction. However, it is preferred that the axis is in a substantially horizontal orientation when the saw is set in a zero degree bevel position. Regardless of the angle of inclination or orientation of the surface on which the saw rests, the axis is preferably substantially parallel to the arbor shaft in which the saw blade is mounted, and thus substantially perpendicular to the plane of the saw blade.

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PUM

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Abstract

Embodiments of the invention include a power miter saw comprises a power miter saw having a saw base, a fence for positioning a work piece, a table rotatably connected to the saw base, a miter arm assembly for angularly positioning the table relative to the saw base, a saw blade and motor assembly operatively connected to the table, a linear guide mechanism attached to the table and being configured to support the saw blade and motor assembly and enable movement of the assembly along a predetermined linear path in either a forward or a rearward direction, the mechanism having a pivot block with a first pivot axis generally perpendicular to the plane of the saw blade about which the saw blade and motor assembly is pivotable to move a saw blade vertically into and out of cutting position, the mechanism having a multiple link hinge pivotally interconnecting the pivot block and the table with pivot axes that are parallel to one another and with the first pivot axis, the mechanism having a gear set operatively connected to the multiple link hinge which maintains the pivot block at a generally constant elevation during movement in the forward and rearward directions.

Description

technical field [0001] This is a continuation-in-part application of Serial No. 11 / 284,931, filed November 22, 2005. [0002] The present invention generally relates to power miter saws and abrasive cut off saws. Background technique [0003] Over the years, miter saws have been the subject of continuous research and development efforts in the field of power tools, and numerous improvements have been made which have resulted in greater ease of use and manufacture. Engineers who install trim carpentry have used electric miter saws for a long time and are well known that wide blanks, such as crown molding etc., often require miter cuts with larger saw blades or with underlying structures A structure that enables the saw blade to move along a horizontal path toward and away from a guide bar of the miter saw. This type of blade moving configuration is often marketed as a sliding compound miter saw primarily because most if not all saws of this type on the market have a sliding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D47/00B23D47/02B23D47/08B23D45/14B24B27/08
CPCB27B5/207B23D45/048B27B5/208B27B5/206Y10T83/8773Y10T83/7697
Inventor S·C·奥伯海姆
Owner ROBERT BOSCH GMBH