JPH0723162Y2 - Jig for plane sharpening - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose] (Industrial field of application) The present invention relates to a jig used for sharpening a plane blade.

(Prior art) In order to always use a plane in a good condition, it is necessary to constantly sharpen the plane blade, but when performing such a blade sharpening work, It is necessary to slide back and forth on the surface of the grindstone with the plane blade always maintaining a constant angle. However, the work of reciprocating with the plane blade always kept at a constant angle with respect to the grindstone surface is a work with considerable skill,
For amateurs, the reality is that it is difficult to perform accurate blade sharpening work.

In view of this point, recently, by attaching a roller to the rear part of the base plate that fixes the plane blade, and moving the roller portion while keeping it in contact with the surface of the grindstone, the angle of the plane blade with respect to the surface of the grindstone is increased. A jig has been devised so that it can be kept at a constant angle.

(Problems to be solved by the invention) However, such a jig generally used conventionally
The shape is focused on maintaining the angle, and when using the jig body, it is configured to be used with both left and right ends held by both hands, and the force applied by the left and right hands. There is a risk that the cutting edge may be bent into a bow shape due to the imbalance in the above. When a plane blade in such a finished state is attached to a plane, the blades in the central part have a large degree of protrusion, and the blades at both left and right ends have a small degree of protrusion. It lacks uniformity and can also significantly impair the performance of planes.

This invention is intended to eliminate the above-mentioned drawbacks of the conventional structure.

〔Constitution〕

(Means and Actions for Solving Problems) In this invention, a base plate is attached to the tip of a handle in a diagonally downward direction, and a fastening tool for fixing a plane blade is arranged on the base plate. With this configuration, it is intended to maintain an accurate angle to the grindstone surface and to balance the forces applied to the left and right.

(Embodiment) The construction of a plane sharpening jig according to the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the jig body 1 has a handle 2 formed in an elongated shape. A base plate 4 having a plate portion slightly wider than the width of the plane blade 3 and a mounting portion 6 to the handle 2, and the plate portion being bent about 30 degrees with respect to the mounting portion 6, It is configured with a tightening tool 5 which is a combination of a support metal fitting 7 for supporting the plane blade 4 in a state of being superposed on the base plate 4 and a clamp 8 for fixing in the supported state, and to the handle 2. At the time of attaching the base plate 4, the base plate 4 is arranged at the lower end of the tip, and then the holes 9 formed in the handle 2 and the holes 10 formed in the attaching part 6
・ This is done by matching 10 and inserting pins 11 and 11 into both holes and pressing and deforming the lower part.

〔effect〕

(Effects of the Invention) The plane sharpening jig according to the present invention has the above-mentioned configuration, and can maintain the accurate angle of the plane blade with respect to the grindstone surface, and at the same time, make it uniform over the entire plane blade. As a result, it is possible to prevent the distortion of the cutting edge from occurring, which is an advantage.

That is, when using the jig according to the present invention, the back of the handle is supported by one hand, and the other hand is applied to the front part of the handle to apply a downward force. , If the rear part of the handle 2 is constantly moved in the horizontal direction, the angle of the plane blade can be maintained, and if the front part of the pattern 2 is always pushed downward, the force is uniform over the whole plane blade. Therefore, it is possible to perform accurate blade sharpening work, and it is possible to suppress the occurrence of distortion of the grindstone surface as a result of applying a uniform force over the entire grindstone surface.

[Brief description of drawings]

The accompanying drawings show an embodiment of the present invention,
FIG. 1 is a perspective view showing the entire jig main body, FIG. 2 is a perspective view showing the usage of the jig main body, and FIG. 3 is an exploded perspective view showing each component of the jig main body. 1 ... jig body, 2 ... handle, 3 ... plane blade, 4 ... base plate,
5 ... Tightening tool

Claims (1)

[Scope of utility model registration request] 1. A handle 2 and a wide base plate 4 having a mounting portion 6 attached to the handle 2, the mounting portion 6 being in a substantially horizontal state, and further from a central portion of a horizontal width of the base plate 4. In order to arrange the base plate 4 in a state of extending to the rear side, bend the base plate 4 with respect to the mounting portion 6 in a front obliquely downward direction, and fix the plane blade 2 to the base plate 4. A jig for plane sharpening, characterized in that the tightening tool 5 of 1.