JPS593851Y2 - Planer with adjustable blade tip - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a planer in which the gap between the cutting edges can be finely adjusted.

Traditionally, regular planers, regardless of whether they have a single blade or a presser blade, make subtle adjustments to the cutting allowance by adjusting the protruding dimension of the planer's cutting edge, and only years of experience can produce a precise planing finish. I had completed it.

In contrast, the present invention has an adjustable blade inserted into the inclined surface opposite the planer blade in the valley-shaped digging part of the planer stand, and the adjustable blade has a scooping surface on the cutting edge and a contact surface with a relief angle formed on the lower end. By replacing and using several types of adjustable blades formed with various clearance angles, the contact area of the lower end of the cutting edge with the workpiece surface can be adjusted. The gap between the cutting edge and the cutting edge can be freely adjusted using a wedge or a screw device, etc., making it easy to operate and has a backfill effect.It can also be adjusted to various clearance angles depending on the condition of the workpiece surface. To provide a planer capable of sharpening by replacing a formed adjustable blade, which has good bite, prevents cracking of material, prevents back-cutting, and generates chips with a uniform thickness comparable to that of an expert, even for beginners. It is something.

An embodiment of the present invention will be described below with reference to the drawings. In the planer table 1, an adjustable blade 5 is inserted into the inclined surface 4 facing the planer blade 3 of the valley-shaped digging part 2, and the adjustable blade 5 is attached to the cutting edge. It has a scooping surface 6 and a contact surface 7 with a relief angle θ formed at the lower end,
The inclined surface 4 is made to be able to slide up and down, and after adjusting the gap G between the cutting edge and the planer blade 3, a wedge 8 is stacked on the top surface of the adjusting blade 5, and the wedge 8 is fixed with a presser foot 9 inserted through the valley-shaped digging part 2. It consists of

The adjusting blade 5 may be adjusted by inserting it into the grooves on both sides like a screwdriver or a planer blade instead of using the wedge 8.

In the planer of the present invention constructed in this way, the adjustable blade 5 is connected to the cutting edge of the adjustable blade 5 by the wedge 8 and the presser foot 9.
The gap G between the blade and the blade is usually adjusted to about 0.1 to 1.0 m/m.

The scooping surface 6 is formed on the tip of the adjustable blade, making the tip of the adjustable blade sturdy and making it easy to adjust the gap between the blades.Also, a relief angle θ is formed at the lower end of the blade to adjust the angle to suit the workpiece material. By selecting the blade, the pressing force of the planer against the workpiece is partially concentrated on the cutting edge, smoothing out the unevenness of the workpiece surface, and further reducing the pressure caused by the biting of the cutting edge and the artificial pressure associated with cutting work. On the other hand, it exhibits the effect of forming a lower end contact surface with functions such as maintaining a proper contact surface and preventing knots, annual rings, etc. from floating on the finished surface.

Therefore, according to the present invention, it is an epoch-making planer that is effective in making it possible for even beginners to produce shavings of uniform thickness on a par with experts.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view showing a cross section of a partially cutout, FIG. 2 is a plan view of a partially cutout, and FIG. 3 is an enlarged sectional view of the tip of the adjustable blade. . 1... Planer stand, 2... Valley-shaped digging part, 3... Planer blade, 4... Inclined surface, 5
...Adjustable blade, 6...Scooping surface, 7...
...Contact surface, 8...Wedge, 9...
Presser foot, θ... Relief angle.

Claims (1)

[Scope of utility model registration request] An adjustable blade is inserted into a slope facing the planer blade in the valley-shaped digging part of the planer table, and the adjustment blade has a scooping surface at the cutting edge and a contact surface with a relief angle formed at the lower end, and A planer with an adjustable blade which can be slid up and down, and which is fixed with a presser foot or the like after adjusting the gap between the blade and the planer blade.