JP3041778U - Spare blade type scissors - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a replaceable blade type scissors that facilitates attachment / detachment of the cutting edge portion and the handle portion and enhances the bonding strength between the cutting edge portion and the handle portion. A taper surface is provided on a side surface 5 of a base portion 3 of a cutting edge portion 1, and a taper surface is provided on a side surface 9 of a groove portion 8 of a handle portion 2 so as to face the taper surface of a side surface 5 of the cutting edge portion 1. The pin 10 of the handle portion 2 is attached to the cutout portion 7 of the hole 6 of the cutting edge portion 1 to enhance the coupling between the cutting edge portion and the handle portion.

Description

[Detailed description of the invention]

[Field of Industrial Application] [0001] The present invention relates to a replaceable scissors suitable for professionals who frequently use scissors such as a barber and a hairdresser.

[Prior Art] Scissors have a moving blade composed of a blade tip portion and a handle portion, and a stationary blade, and both blades are integrated with a screw. The replaceable blade type scissors have a blade tip part and a handle part that are separate parts, and are configured to connect both companies with screws. When the sharpness of scissors deteriorates, only the cutting edge should be replaced with a new cutting edge.

The basic configuration of the replaceable blade type scissors is shown in Japanese Utility Model Publication No. Sho 49-12191. In this example, the connecting projection of the cutting edge is placed on the groove of the handle and both are fixed by the engagement of the hole and the projection. In this example, if looseness occurs in the engagement between the hole and the protrusion, the cutting edge vibrates with respect to the handle, and the function of the scissors is lost.

[Problems to be Solved by the Present Invention] The present invention has been made in order to overcome the above-mentioned drawbacks of the prior art. The purpose of the present invention is to facilitate replacement of the cutting edge portion and to remove the cutting edge portion from the handle portion. The aim is to provide stronger scissors and to provide scissors that make cutting work more comfortable.

[Means for Solving the Problems] The replaceable blade type scissors of the present invention that can solve the above problems basically have a tapered surface on the contact surface where the cutting edge portion and the handle portion engage with each other. Characterize. Specifically, it has a tapered surface on the side of the base of the cutting edge, and also has a tapered surface on the side of the groove on the handle that receives the cutting edge, facing the tapered surface of the base on the cutting edge. (EN) Provided is a replaceable blade type scissors characterized by having a hole provided in the hole and a protrusion engaging with the hole.

[Operation] Since the taper surface provided on the side surface of the base portion of the blade portion and the taper surface provided on the side surface of the groove of the handle portion are in contact with each other, there is no looseness of the blade portion with respect to the handle portion. In addition, the taper surface does not loosen the scissors when cutting. As a result, the run-out of the cutting edge with respect to the handle is eliminated. It is extremely easy to strengthen the connection between the cutting edge and the handle simply by mounting the protrusion of the handle groove into the hole in the base of the cutting edge.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a cutting edge part and 2 is a handle part. The cutting edge portion 1 has a taper surface on the side surface 5 of the base portion 3, the handle portion 2 has a groove 8 corresponding to the base portion 3 of the cutting edge portion 1, and the side surface 9 of the groove 8 has the cutting edge portion 1 Has a taper surface facing the side surface 5.

The cutting edge portion 1 has holes 4 and 6 for screws, and the groove portion 8 of the handle portion 2 has a hole 12, a disk 11 and a pin 10. A notch 7 is provided in the hole 6 of the cutting edge portion 1, and a pin 10 of the handle portion 2 is attached to the notch portion 7 to strengthen the connection between the cutting edge portion 1 and the handle portion 2.

Since the side surface 5 of the cutting edge portion 1 and the side surface 9 of the groove portion 8 of the handle portion 2 both have a tapered surface and face-to-face contact with each other, the cutting edge is not loosened and the cutting edge is not loosened. The swing of the handle portion 2 of the portion 1 does not occur. To replace a new cutting edge, the pin 10 of the handle portion 2 is removed from the notch portion 7 of the cutting edge portion 1 and the disc 11 is passed through the hole 6 to separate the cutting edge portion 1 and the handle portion 2.

FIG. 4 shows a cylinder 13 attached to the pin 13 of the handle portion 2. The cylinder 14 is made of a material for strengthening the connection between the pin 13 and the hole 15 of the cutting edge portion 1. By using a hard plastic, the degree of bond adhesion between the pin 13 and the hole 15 is increased. As shown in FIGS. 7 and 8, the cross-sectional shape of the cylinder 14 is such that the center is hollow and the outer surface is uneven.

The processing method for providing the pin 10 and the disk 11 in the groove 8 of the handle portion 2 shown in FIG. 1 can be carried out by the present caulking process, and the pin 13 and the cylinder 14 shown in FIG. It can be easily caulked and can be easily formed by precision casting.

[Effects of the Invention] The scissors according to the present invention make it extremely easy to attach and detach the blade tip and the handle portion by removing the screw, and to easily attach a new blade edge to the handle portion. Since the side surface of the tapered surface provided on the base of the cutting edge and the tapered surface provided on the groove of the handle come into face-to-face contact, the degree of attachment between the cutting edge and the handle is increased to allow cutting work. It does not loosen against the load of time, has the effect of eliminating the run-out of the cutting edge on the handle, and allows the scissors to perform its function comfortably.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cutting edge portion and a handle portion according to the present invention.

FIG. 2 is a plan view in which a cutting edge portion and a handle portion of FIG. 1 are combined.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view of a cutting edge portion and a handle portion according to the present invention.

5 is a plan view in which the cutting edge portion and the handle portion of FIG. 4 are combined.

FIG. 6 is a sectional view taken along line BB of FIG. 5;

7 is an external view of the cylinder 14 of FIG.

8 is another view of the outer shape of the cylinder 14 of FIG.

[Explanation of symbols]

 1 Blade Edge 2 Handle 3 Base 4 Hole 5 Side 6 Hole 7 Notch 8 Groove 9 Side 10 Pin 11 Disc 12 Hole 13 Pin 14 Cylindrical 15 Hole

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 24, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (3)

[Utility model registration claims] 1. A replaceable blade type scissors in which a removable blade tip portion and a handle portion are brought into contact with each other and integrated with a screw. The cutting edge has a flat base and the tapered surface of the base has a tapered surface, and the handle has a groove that is in contact with the tapered surface of the base of the cutting edge. A replaceable blade type scissors having a tapered surface and having screw holes in the cutting edge portion and the handle portion. 2. The replaceable scissors according to claim 1, wherein the groove portion of the handle portion has a protrusion portion, and the base portion of the blade tip portion has a hole and a notch facing the protrusion portion of the groove portion of the handle portion. . 3. The hairdressing and beauty cosmetics as claimed in claim 2, wherein the handle has a pin in the groove, a cylindrical member is provided on the outer surface of the pin, and the base of the cutting edge has a hole corresponding to the cylindrical member. Scissors.