JPS596775Y2 - grip scissors - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to replaceable blade type gripping scissors having a replaceable blade type scissors blade adjustment device.

Conventional gripping scissors are usually made as a single piece, and therefore have the disadvantage that the blades cannot be replaced as the blades wear out or depending on the intended use.

In view of these points, the present applicant previously filed an application for a proposal for replaceable blade type scissors in which the scissor blades can be easily attached and detached.

(Utility Application No. 56-173742) The present invention is equipped with an adjustment screw, and not only can the cutting edge be adjusted according to the wear of the blade, but also the cutting quality can always be adjusted according to the hardness of the material to be sheared. This allows it to retain its sharpness.

Hereinafter, the present invention will be described based on the accompanying drawings, which are examples.

As shown in Fig. 1, the scissors according to the present invention have a scissor blade at the tip.
The grip main bodies (hereinafter referred to as the main body) 2, 2, on which the grip body 2 is mounted, are pivoted 7 at the rear end portions, and can be opened and closed by interposing an arbitrary spring 5 between the main bodies 2, 2.

To attach the scissor blade 1 to the tip of the main body 2, follow the steps shown in Figures 2 and 3.
4, a U-shaped groove 6 is formed on the inner surface of the distal end of the main body 2, and a U-shaped groove 6 is formed continuously on the pivot 7 side of the main body 1 for positioning the base of the scissor blade 1. End (hereinafter referred to as localization end) A hole 2A into which 1A is inserted is bored.

The hole 2A is sized to allow the localization end IA to move slightly in the lateral direction (in the direction perpendicular to the shear plane of the blade).

In addition, a hole 2B having a slightly larger diameter than the outer diameter of the crimp spring 4 of the scissor blade 1 is bored in one side wall of the groove 6 on the tip side of the main body 2, and an adjustment screw is provided in the other side wall facing the hole 2B. A female screw 2C to be screwed into the scissor blade 1 is provided coaxially with the hole 2B, and the scissor blade 1 is fixed to the main body 2 by the adjustment screw 3 via the compression spring 4.

In the illustrated embodiment, the main body 2 is made of a composite or resin and is integrally molded, and the female screw 2C is inserted into the main body 2.

On the other hand, as shown in FIG. 5, the scissors blade 1 is provided with a hole 1B for fixing the scissors blade at the base of the blade, and an end 1A for base positioning is provided continuously to the base, so that the scissors blade 1 can be attached to the main body. 2, the hole 1B of the scissor blade 1 is inserted into the hole 2B of the side wall of the main body groove 6.
and is coaxial with the female screw 2C.

Therefore, in order to attach the scissor blade 1 to the main body 1, the positioning end 1A must be
After inserting into the hole 2A of the main body, the shaft of the adjustment screw 3 is inserted through the compression spring 4 and the hole 1B of the scissor blade 1, and the scissor blade 1 is tightened to the female thread 2C of the main body 2.

In this case, the localization end 1A of the scissor blade 1 can move slightly in the direction perpendicular to the shear plane within the hole 2A of the main body 2, so the scissor blade 1
The blade portion can similarly move against the pressure force of the pressure spring 4.

Note that the rear end portions of the grip main bodies 2, 2 are pivoted 7, and the main body 2
, 2 can be opened and closed by a spring 5 between the blades.In this case, it is of course necessary to provide an appropriate stopper on the main body 2 to prevent the blades from being too far apart, and in the case of a composite or resin type, the stopper can be easily integrated. It can be made into a certain type.

As is clear from the above, the contact pressure between the opposing scissor blades 1, 1 attached to the main bodies 2, 2 is determined by the adjustment screw 3.
, 3 can be arbitrarily selected.

Alternatively, one of the opposing blades may be integrated with the main body 2, and the above structure may be applied to only one side, and an arbitrary contact pressure may be selected using the adjustment screw 3.

In the embodiment, the attachment part of the adjustment screw part is formed into a U-shaped groove, but the present invention is not limited to this, and the length of the wall on one side of the female screw 2C may be used.

Therefore, according to the present invention, the contact pressure of the scissors blades 1, 1 can be arbitrarily selected very easily by operating the adjustment screw, and even if wear occurs due to the action of the compression spring, the scissors blades 1, 1 in the direction of closeness, it is possible to always maintain good cutting quality, and further, by adjusting the adjustment screw according to the hardness and softness of the material to be sheared, good cutting quality can always be maintained. There is an effect that can be achieved.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the gripping scissors of the present invention. Figure 1 is a front view of the entire body, Figure 2 is a plan view of only the tip of the grip body, and Figure 3 is a cross-sectional view of the line shown in Figure 1. A sectional view, FIG. 4 is a sectional view taken along the line II-II of the scissors blade base positioning end of the main body, and FIG.
The figure is a plan view of one of the scissor blades. DESCRIPTION OF SYMBOLS 1... Scissors blade, 2... Grip body, 2A... Hole in the grip body, 3... Adjustment screw, 4... Crimping spring.

Claims (1)

[Scope of utility model registration request] An end 1A for base positioning is provided continuously at the base of at least one of the scissors blades 1 of a pair of opposing scissors blades 1, 1, and a hole 1B for fixing the scissors blade is provided at the base of the blade. On the other hand, the scissors blade 1
A hole 2A into which the base positioning end 1A of the scissor blade is loosely fitted is bored in the pair of grip main bodies 2, 2 which are biased to be spaced apart from each other by a certain distance to fix the scissor blade. end 1 of
A into the hole 2A, and insert the threaded part of the adjustment screw 3 into the hole 2A of the scissor blade 1 so that the compression spring 4 is interposed between the back surface of the shearing surface of the scissor blade 1 and the head of the adjustment screw 3. A pair of gripping scissors characterized in that the gripping scissors 1B are passed through and screwed into the female thread 2C of the gripping body 2.