JPS6055Y2 - Blade attachment structure for scissors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for attaching a ceramic blade to a scissor body made of other metal or plastic.

Conventionally, when attaching a blade with different properties to the main body of scissors, a method was used in which a recess was formed inside the working end of the main body and the blade was adhered thereto.

This method has the disadvantage that the mutual positioning of the blade and the cutting portion of the main body cannot be performed accurately, and that it is not always possible to obtain a satisfactory level of accuracy.

The present invention is an attempt to improve this conventional method, and its specific structure is such that a ceramic blade is attached to the blade of the scissors body, and the blade is shaped in a short cross-section along the longitudinal direction. The formed protruding engaging portion is fitted into a concave engaging portion formed along the longitudinal direction of the blade portion of the main body, and both bonding surfaces are bonded together using an adhesive.

The present invention will be explained in detail below based on the illustrated embodiments.

In the drawings, reference numeral 1 indicates an example of scissors to which the present invention is applied, which is a so-called intermediate fulcrum type scissor.

Since the present invention is originally related to a structure for attaching blades with different properties to the blade portion 4 of the main body 2, it is not limited to such intermediate fulcrum type scissors, but also scissors having a rear end fulcrum type. There is no problem in applying it to

Reference numeral 2 denotes a main body, and a pair of these bodies are rotatably combined on a support shaft 3 to form the scissors.

The main body 2 is made of a plastic material such as acrylic, by way of example, but it is also possible to use metal, ceramic, or the like.

The main body 2 has a blade section 4 at its front end and an annular grip section 5 at its rear end.

A ceramic acid blade 6 having different properties is attached to this blade portion 4, and the structure of this attachment will be explained below.

First, the blade 6 is in the shape of a tapered rod with a substantially cross-sectional shape, and one angular ridge portion serves as a blade portion 7.

On the other hand, a convex engagement portion 8 is provided at a position substantially facing the cutting edge 7 along its longitudinal direction.

On the other hand, the cross-sectional shapes of the blade parts 4 in the main body 2 are different from each other.
The blade 6 is received at the end edge on the intersecting surface side to form a part 9, and a long groove-like groove engaging part 10 is formed in the inner part of the part 9 in the longitudinal direction. It is formed along the

That is, this grooved engagement portion 10 and the protrusion engagement portion 8 of the blade 6 are formed at corresponding positions.

Both the blade portion 4 and the blade 6 in the main body 2 are connected to the groove engagement portion 10 in the main body 2.
The protruding engagement portion 8 is fitted into the contact surface, and the contact surface thereof is fixed with an adhesive.

As described above, in the present invention, when attaching the blade 6 to the main body 2, the attachment is not limited to simply setting it in the part 9, but a concave engagement part 10 is carved in the deep part of the part 9, and the blade 6 is By making the cross-sectional shape approximately L-shaped, the protruding engagement portion 8 is provided and the two are bonded together so that they fit together, so that the attachment can be performed firmly and accurately.

Furthermore, since the contact area between the two can be increased, a high adhesive strength can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of scissors to which the present invention is applied, Fig. 2 is an exploded perspective view of the same as above, Fig. 3 is an exploded perspective view showing the working end and blade of the scissors, and Fig. 4 is an exploded perspective view of the working end of the scissors. FIG. 5 is an exploded cross-sectional view showing the front blade body and the blade in the same state as above. 1: Scissors, 2: Main body, 4: Blade portion, 6: Blade, 8: Convex engagement portion, 9: Attachment portion, 10: Concave engagement portion.

Claims (1)

[Scope of utility model registration request] In scissors with a ceramic blade attached to the blade part of the main body, the blade is approximately cut in cross-section to form a protruding engaging part along the longitudinal direction, and the protruding engaging part is attached to the blade part of the main body in the longitudinal direction. The attachment structure of the blade of the scissors is characterized in that the blade is fitted into a concave engaging portion formed along the blade, and the blade and the blade portion of the main body are bonded.