JPH0121647Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to replaceable blade type scissors, and particularly relates to replaceable blade type scissors in which the replaceable blade attached to the body of the scissors can be easily peeled off.

(Prior art) Generally, hairdressing scissors have a movable blade with a handle ring for the thumb at one end and a stationary blade with a handle ring for the ring finger at one end, which intersect in an X shape, and the crossing position is pivoted. The movable blade and the static blade are intersected to trap and cut hair, etc.

With the conventional scissors mentioned above, if the blades are worn out or damaged due to long-term use, warpage of the blades, or if the blades come into contact with hard metal, etc., the blades become unusable and must be sharpened or , will require another pair of scissors.

(Problems with conventional technology) When using scissors, the blades may wear out,
If a part of the blade is damaged for some reason, it must be sharpened, but not only does this work require great skill and time, but it can also cause invisible damage to the blade. . For this reason,
When the movable blade and the static blade intersect, it has the disadvantage of generating an unpleasant noise, and furthermore, because the thickness of the blade increases due to sharpening, it lacks sharpness. For this purpose, a method for replacing blades has been considered.For example, in order to facilitate polishing, the backs of the blades of the two blade bodies that are inserted into the two pincer bodies are both formed into a flat shape, and the blades of the two blades are Japanese Patent Application Laid-open No. 173576/1983 describes a spare blade clip in which a gap is forcibly formed between the backs of the blades when the blade is attached, and further includes:
Some types of replaceable blade clips have protrusions on the clip body and cutouts that fit into the projections so that the blade body inserted into the clip body does not become disengaged. Although it is described in Patent No. 82392,
These conventional methods for replacing blades have not been widely used because it is not easy to attach or remove the blade, and it takes time to properly position the blade.

(Purpose of the invention) The object of the invention is to eliminate the above-mentioned conventional drawbacks and to provide scissors with replaceable blades that allow easy attachment and removal of replacement blades and easy positioning.

(Summary of the invention) The invention consists of a movable blade base with a finger handle ring on one end and a stationary blade base with a hand handle ring on one end, which are crossed in an X-shape. In the replaceable blade type scissors, in which the intersecting position is pivoted and the replaceable blades are attached to both of the bases, a finger handle ring is provided when viewed from the pivot point of the movable blade base and the stationary blade base. An adhesive part for pasting the replaceable blade is provided on the base on the opposite side, and a replaceable blade with an adhesive attached to the back side is pasted to the adhesive part, and the two bases are attached to each other. Provided are replaceable blade type scissors characterized in that a blade removal hole is provided in the attachment portion of the replaceable blade, passing through the base and through which a replaceable blade removal member is inserted.

(Example) Next, an example of the present invention will be described in detail using the drawings.

FIG. 1 is a perspective view showing one embodiment of the present invention, in which 1 is a movable blade base having a thumb handle ring 1a at one end, and 2 is a movable blade base having a ring finger handle ring 2a at one end. It is a base for static blades. Both bases 1 and 2 intersect in an X-shape, and the intersecting position is pivotally supported by a screw 3. Reference numeral 4 denotes a blade attachment portion of the movable blade base 1, and the blade attachment portion 4 is provided with a curvature on the inner surface toward the tip. Reference numeral 5 denotes a blade attachment portion provided on the stationary blade base 2, and the attachment portion 5 is also aligned inward toward the tip as described above. Then, a replaceable blade 10, which will be described later, is attached to the blade attachment parts 4 and 5.
Since they have the same structure, this embodiment will be explained using the movable blade base 1. A blade removal hole 20 is provided in the blade attachment part 5 near the screw 3 of the shaft support of the stationary blade base 2, and is drilled through the blade attachment part 5 from the outer surface to the inner surface. Although not shown, the moving blade base 1
Also in the blade attachment part 4, a hole having the same structure as the blade removal hole 20 is bored through. Reference numeral 30 denotes a screw hole provided on the handle ring side near the shaft support of the stationary blade base 2, into which a holder 31 for twisting, which will be described later, is screwed.

FIG. 2 is a plan view of the blade mounting portion 4 of the movable blade base 1, and FIG. 3 is a sectional view taken along the line -- in FIG. In the figure, 4a is a protrusion provided on the back of the blade attachment part 4, and the blade attachment part 4 is provided with a space on the side where the replaceable blade 10 is attached, as shown in FIG. It is formed. Reference numeral 4b indicates a rear end portion of the blade attachment portion 4, and reference numeral 4c indicates a blade base portion at the end of the blade attachment portion 4 in the shaft support direction.

Next, explaining the replaceable blade, FIG. 4 is a perspective view of the replaceable blade 10, and FIG. 5 is a sectional side view thereof. In the figure, the replaceable blade 10 is made of a thin steel material such as a steel plate or a stainless steel plate, 10a is a sharply polished blade portion, and 10b is a blade base portion in the axis direction of the scissors. 11 is a mount made of cardboard or synthetic resin, and has an adhesive material 11a from which the replaceable blade 10 can be peeled off.
The entire surface is attached with the edge portion aligned with the blade base portion 10b. In addition, on the upper surface of the mount 11, there is a contour line in the pivot direction from the cutting edge of the groove 4b of the blade attachment part 4 as the attachment position when the replaceable blade 10 is attached to the moving blade base 1 in the correct position. 12 is written on the mount 11. Next, 11b is an adhesive provided on the surface of the replaceable blade 10 except for the blade portion 11a, and the adhesive 11b is double-sided adhesive tape adhered to the surface of the replaceable blade 10, and 11c is the paper. .

Next, FIG. 6 is a sectional view taken along the line -- in FIG. 1, and parts similar to those in FIG. 1 are designated by the same reference numerals. Reference numeral 31 denotes a holder for storing and holding a contact member such as a ball, and a flange 32 is provided in the middle of the holder, and a male screw 3 is provided on the outer periphery of the upper and lower parts of the holder.
3 and 34 are formed, and the screw 34 is screwed into a screw hole 30 provided in the stationary blade base 2.
The holder 31 is hollow, and a ball retaining protrusion 35, which will be described later, is provided at its lower end.

A contact member 36 is housed in the holder 31 and comes into contact with the inner surface of the movable blade base 1, and in this embodiment, a steel ball is used.

Reference numeral 37 designates a lid portion that is attached to the upper end of the holder 31, and is provided with a female screw 38 that is screwed into the screw 33.
A groove 39 is provided on its upper surface, into which a driver or the like is engaged. 40 is the ball 36 and the lid part 37
The ball 36 is constantly pressed against the inner surface of the movable blade base 1 by a coil spring disposed between the ball 36 and the holder 31. It's summery.

The present invention is structured as described above, and then:
Replacement blade 10 on base 1 for moving blade or base 2 for static blade
To explain how to attach it, put adhesive material 1 on mount 11.
The paper 11c on the top of the replaceable blade 10 attached at point a is attached to the replaceable blade 1 as shown by the dashed line in FIG.
0 to expose the surface of the adhesive 11b. Next, the movable blade base 1 and the static blade base 2 are opened sufficiently so that the respective blade mounting portions 4 and 5 are at right angles.
Next, the inner surface of the base faces the replaceable blade 10 on the mount 11, and the blade attachment part 4 is aligned with the groove part 4b.
is positioned so as to match the outline 12 on the mount 11, and while the blade base 4c of the blade attachment part 4 is in contact with the blade base 10b of the replaceable blade 10, the mount 11 is inserted from the back side of the movable blade. Press it against the base 1. Next, mount 11
Gradually separate from the blade attachment part starting from the blade tip and remove the adhesive material 1.
Once 1a is peeled off, attachment of the replaceable blade 10 to the movable blade base 1 is completed.

Next, regarding the removal of the replaceable blade 10 in the event that the sharpness of the replaceable blade 10 deteriorates or the blade is spilled for some reason, the movable blade base 1 and the static blade base 2 are attached to each other. Open sufficiently so that parts 4 and 5 are at right angles. For the part of the replaceable blade 10 that is visible at the back of the blade removal hole 20 provided in the blade attachment parts 4 and 5,
If the tip of a replaceable blade removal member made of a rod-like member such as a screwdriver is inserted into the blade removal hole 20 from the outside of the base and the replaceable blade 10 is pressed with the tip, the replaceable blade 10 will be removed from the blade base 10b side. After that, insert the tip of the screwdriver into the gap between the blade attachment part 4 or 5 and the replacement blade 10 that has started to peel off, and gradually advance the driver toward the blade tip to complete the removal of the replacement blade 10. Become.

Next, to explain the operation of the twisting device shown in FIG. , a repulsive force acts against each other on the handle ring side than the shaft part,
In the direction of the cutting edge from the screw 3, an action such that the movable blade and the static blade intersect, that is, a twisting action is given. Therefore, the user only has to use his or her fingers to open and close the bases of both the movable blade and the static blade, and a twisting operation is added, resulting in scissors with good sharpness. Also, when cutting with the moving and static blades wide open,
Since a twisting action is provided, cutting with a twisting action is possible even near the blade base portion 10b, the range of use of the blade is expanded, and the life of the scissors can be extended.

In this embodiment, the twisting device is provided on the stationary blade base 2, but even if it is provided on the moving blade base 1, the twisting operation cannot be added between the two bases. The same is true.

Further, although the present invention has been described based on the illustrated embodiment, the present invention is not limited to only what is shown in the embodiment. For example, although a steel ball is used as a contact member, it is not necessarily the case that the steel ball It is not necessary that the structure is the same, and the other components can be modified in various ways according to the gist of the present invention, so that similar effects can be obtained by sliding them using a material with a small coefficient of friction.

(Effects of the invention) As explained in detail above, in the present invention, a blade removal hole is provided in the attachment part of the replaceable blade of the base of the movable blade and the stationary blade, through which the replaceable blade removal member is inserted. By inserting the tip of the replaceable blade removal member, which is a rod-shaped member such as a screwdriver, into the blade removal hole and pressing the back of the replaceable blade, part of the adhesive on the replaceable blade will peel off, and the entire blade will be removed. This provides a tight grip for removing the spare blade, making the task of removing the spare blade easy.

[Brief explanation of the drawing]

Figure 1 is a perspective view of replaceable blade scissors according to the present invention;
Fig. 2 is a plan view of the blade attachment part, Fig. 3 is a cross-sectional view taken along the - line in Fig. 2, Fig. 4 is a perspective view of the replaceable blade, Fig. 5 is a sectional view thereof, and Fig. 6 is a sectional view taken along the - line in Fig. 1. −
FIG. 1...Base for moving blade, 1a...Handle ring for thumb, 2...
...Base for stationary blade, 2a...Handle ring for ring finger, 3...Screw, 4...Blade mounting part, 5...Blade mounting part, 10...
Spare blade, 11... Mounting paper, 11a... Adhesive material, 11b
... Adhesive material, 11c ... Rikei paper, 20 ... Blade removal hole, 31 ... Holder, 36 ... Ball, 37
...Lid, 40...Coil spring.

Claims (1)

[Scope of utility model registration request] A movable blade base provided with a handle ring for fingers at one end and a base for a stationary blade provided with a handle ring for fingers at one end are crossed in an X shape, and the intersecting position is pivoted and the base is In a pair of replaceable blade scissors in which replaceable blades are attached to both sides of the base, the replaceable blade is attached to the base on the side opposite to the side where the finger handle ring is provided, when viewed from the pivot points of the movable blade base and the stationary blade base. An adhesive part for attaching the blade is provided, and a replacement blade with an adhesive attached to the back side is attached to the adhesive part, and the replacement blade attachment part of the two bases is provided with an adhesive part. Replaceable blade type scissors characterized by having a blade removal hole that penetrates these bases and into which a blade removal member is inserted.