Slide-type cutting machine

Inventor: Shinji Oohama (Hiroshima, JP)

Assignee: Ryobi Ltd.

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Quick Facts

Patent No.: US 8,522,657
App. No.: 12/681,893
Granted: Sep 3, 2013
Kind: B2

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Abstract

A slide-type cutting machine ensures safer operation of cutting wood or the like and can be housed in a compact state. A linear guide unit 3 includes a slide shaft 33 moving in a direction perpendicular to the moving direction of a cutting section 4 , a first slide holder 31 for guiding the movement of the slide shaft 33 , and a second slide holder 34 located at a lower end of the slide shaft 33 and for restricting the movement of the slide shaft 33 by abutting against the first slide holder 31 . A linkage element 5 includes a first link 51 having one end connected to the cutting section 4 and the other end connected to the second slide holder 34 , and a second link 52 having one end connected to the first slide holder 31 and the other end connected to the first link 51.

Claims (31)

1. A slide-type cutting machine, comprising:

a base having a work plane on which a workpiece is placed;

a linear guide unit secured to the base; and

a linkage means secured to a cutting section having a blade, the linear guide unit and the linkage means constituting a Scott Russell mechanism in cooperation with each other and guiding a linear movement of the cutting section, wherein

the linear guide unit includes:

a slide shaft moving in a vertical direction, perpendicular to the moving direction of the cutting section, by its own weight thereof;

a first slide holder for guiding the movement of the slide shaft; and

a second slide holder located at a lower end of the slide shaft along the vertical direction and restricting the movement of the slide shaft by abutting against the first slide holder, and

the linkage means includes:

a first link having one end connected to the cutting section and the other end connected to the second slide holder; and

a second link having one end connected to the first slide holder and the other end connected to the first link.

2. The slide-type cutting machine according to claim 1 , including an auxiliary link having one end connected to the cutting section and the other end connected to the second slide holder.

3. The slide-type cutting machine according to claim 2 , including a slide stopper located at the upper end of the slide shaft to restrict the movement of the slide shaft by abutting against the first slide holder.

4. The slide-type cutting machine according to claim 2 , wherein at least one of the linear guide unit and the linkage means is located at a position offset laterally with respect to a plane including a rotating plane of the blade.

5. The slide-type cutting machine according to claim 1 , wherein the cutting section includes a blade portion having a blade, and a holding section for connecting the blade portion to the linkage means, and