JPH0523185Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention belongs to the field of cutting hand tools, and is mainly used as a razor-shaped double-edged hair shearing tool.

(Prior Art) Conventional razor-shaped hair shearing tools are dangerous and difficult to handle, so the applicant has developed a hair shearing tool in which the cutting edge is housed in a holder and exposed intermittently to improve safety. A hair cutting tool (Patent Application No. 55058 of 1988, hereinafter referred to as the "prior invention") was developed that improved the defects in the hair cutting part of the hair tool. The shape of the part and the cutting tool have been improved.

(Problems to be solved by the invention) The purpose of this invention is to prevent damage to unused blades in the cutting tool storage part of the prior invention, and to provide a hair shearing tool that can stably hold the cutting tools. It is.

(Means for solving the problem) This idea incorporates the cutting tool of the hair shearing tool into the holder.
A cutting section cut out at the lower end of the holder of a cutting hand tool in which the cutting edge is intermittently exposed within the cutting section has a longitudinally forward notch surface that is approximately perpendicular, and a rear notch surface that is approximately perpendicular to the vertical surface. The vertical surface has an inclined surface continuous from the upper end to the lower end at an angle of 45 degrees, and a guide surface formed by appropriately chamfering is provided around the front and rear periphery of the cutting part, and a thumb is placed on the upper front surface of the holder. In a hair cutting tool that has a recessed part sufficient for locking, and a suitable wave in the vertical direction below the grip part integrated in the holder, the upper part of the cutter storage part of the holder body is stepped from the lower part. The cutter is arranged to be lowered one step further, and blade retaining edges are arranged at both ends in the upper longitudinal direction, and the edge between the blade retaining edges is used as a relief edge, and a double-edged cutter with a mountain-shaped central portion is stored in the cutter storage part. be.

(Function) According to the above configuration, both ends of the unused blade of the cutter stored in the cutter storage part that are not used are locked to the blade retaining edge, and the part that is used is opposite to the relief edge. The cutting edge will not be damaged as there will be no contact between the cutting edge and the cutting edge itself.The cutting tool itself is formed into a chevron shape with internal stress applied, so when placed in the holder, the cutting tool will be stably held by the reaction force. .

(Example) To specifically explain this invention with an example,
As shown in FIG. 1, the upper cover 1 locks onto the holder body 2 so as to be movable up and down at the tip of the body 2, and has a recess 3 in the upper surface, and is inserted into the cutter storage part 4 of the holder body 2. At the bottom of the joint surface with the top cover 1, a hole 5 is made about the thickness of a double-edged tool, and at the top, a hole 6 is made one step deeper than the hole 5, and at the top edge, there is a hole 5 at both ends. A blade retaining edge 7 is disposed between the blade retaining edges 7, and a relief edge 8 is disposed between the blade retaining edges 7 so that the part used for unused blades does not come into contact with the upper cover 1. It is fixed by screwing and locking the head of the screw 9 into the notch 10 of the upper cover 1. Similar to the prior invention, the cutting portion 11 has a notch surface on the front side in the longitudinal direction as a substantially vertical surface 12, and a notch surface on the rear side as an angle of approximately 45° to the vertical surface 12, from the top end to the bottom end of the vertical surface 12. The cutting portion 11 has a continuous sloped surface 13, and a guide surface 14 formed by chamfering the front edge of the cutting portion 11 as appropriate. Appropriate waves 16 are disposed below in the vertical direction.

The hair shearing tool a constructed in this manner stores a double-edged cutter b whose center is bent upward in a chevron shape as shown in FIG. When being pressed, the double-edged cutter b is stably held in the cutter storage part 4 with a constant tension without slack, and when the double-edged cutter b moves upward due to the resistance applied to the blade in use. However, only the unused ends of the unused blade are locked to the blade retaining edge 7, and the relief edge 8 prevents the unused blade from coming into contact with the blade to prevent damage.

(Effects of the invention) As described above, according to this invention, the double-edged cutting tool b can be stored tightly in the holder without any play, and in addition to being effective in preventing damage to unused blades, the cutting tools that can be stored are not limited. , it has the feature of being able to use various cutting tools.

[Brief explanation of the drawing]

Figure 1 is a front view of the hair shearing tool according to this invention with the top lid open, Figure 2 is a vertical cross-sectional view of the double-edged blade stored in the holder, and Figure 3 is the double-edged blade that is a requirement of this invention. A perspective view of. In the figure, 1 is the top cover, 2 is the holder body, 4 is the cutter storage part, 5 and 6 are the digging parts, 7 is the blade retaining edge, 8 is the relief edge, 11 is the cutting part, 12 is the vertical surface, and 13 is the slope 14 is a guide surface, 15 is a grip portion, 16 is a wave, 17 is a bent portion, a is a hair cutting tool, and b is a double-edged cutting tool.

Claims (1)

[Scope of utility model registration request] A cutting part cut out at the lower end of the holder of a cutting hand tool, which has a hair shearing tool blade built into a boulder and whose cutting edge is intermittently exposed inside the cutting part, has a cutting part cut out at the lower end of the holder on the front side in the longitudinal direction, and the cutting part on the front side in the longitudinal direction is a nearly vertical plane, and the cutting part is cut out at the lower end of the holder. The side notch surface is an inclined surface continuous from the upper end to the lower end of the vertical surface at an angle of approximately 45° to the vertical surface, and a guide surface formed by chamfering the front and rear surfaces of the cut portion as appropriate. In a hair cutting tool consisting of a holder and a grip part, the upper part of the cutter storage part of the holder body is lowered by a step from the lower part, and blade retaining edges are arranged at both ends of the upper part in the longitudinal direction. A hair shearing tool comprising a double-edged tool having a chevron-shaped central portion and storing a double-edged tool with a chevron-shaped central portion in the cutting tool storage portion, with the edge between the blade retaining edges serving as a relief edge of the cutting tool.