JPH0135713Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Industrial application field) This invention creates a plow blade with a strong blade base and a large gap that can be created by compressing and forming machined comb teeth. This invention relates to plow scissors that can be formed with significantly higher productivity.

(Prior art) Conventionally, the plow blade for plow scissors is formed by cutting grooves with a cutter, so the shape of the plow blade is as shown in FIG. In addition, as shown in Fig. 9, the cutting edge body 16 with a ladder-shaped cutting groove formed thereon is installed as a replacement blade, but it is difficult to machine. This was time consuming and caused problems in productivity.

(Problems to be solved by the invention) This invention has been developed based on the problems of conventional plow shears, which has high productivity, strong plow blades, and a modern design that can meet the new needs of the times. I'm trying to get scissors.

[Structure of the idea]

(Means for Solving the Problems) In order to achieve the above-mentioned purpose, this invention is based on the end face of a fan-shaped wrinkle formed by compressing the end edge of the blade body with a concave curved backside in the longitudinal direction. A stationary blade body with a plow blade made of V-shaped grooves that can hold hair and arranged perpendicular to the joining surface for each wrinkle, and a movable blade body with a straight blade or plow blade that can be connected to this by being pivoted at a fulcrum. This relates to plow scissors consisting of a blade body.

In addition, a comb-shaped opening is formed in the blade of the plow blade by cutting a part of the fan-shaped wrinkle formed on the edge of the blade from the convexly curved surface of the blade diagonally to the direction of the blade. The grooves of the comb teeth are shallow, but the roots are strong, allowing a wide plow blade to be obtained.

(Function) In order to explain the function and effect of this invention, the cross-section of the static blade and the moving blade will be described by comparing the combination of the plow blade used in the static blade body constituting the plow scissors and the straight blade or plow blade used in the movable blade body connected to the plow blade. The explanation will be based on the action explanatory diagram.

Figure 7 A shows fan-shaped wrinkles 5 formed by compression molding.
This figure shows a combination of a plow blade 2 with a V-shaped groove 7 arranged side by side on the end face of the wrinkle as a static blade S, and a movable blade D having a straight blade 13 that can be joined to the plow blade 2. In this case, contact between the moving blade S and the moving blade D causes burrs to form on the cutting edge of the straight blade 13, causing local wear, so the joining point between the static blade and the moving blade can be made into a long hole to add a cutting action. If there is a possibility of configuring the blade, damage to the cutting edge can be prevented. In B, both the static blade S and the movable blade D use the plow blades 2 and 14 described above, and the plow blade 2 of the static blade S has a V-shaped groove, and the plow blade 14 on the movable blade side has no groove.

The hair can be combed through the gaps 10 between the fan-shaped wrinkles 5, and the hair held in the V-shaped groove 7 of the static blade S can be sheared by the plow blade 14 of the movable blade D. C is a comb-shaped opening in the blade body 3 of the plow blade by cutting a part of the fan-shaped wrinkle 5 formed on the blade tip edge diagonally to the joint surface from the convexly curved blade surface 9 of the blade body 3. It is a combination of a static blade S having a plow blade 12 with a cut plow blade 17 having a cut plow blade 17 without a V-groove and a plow blade 12 with a V-shaped groove 7 arranged in parallel at every crease 5 on the edge of the blade on which a portion 11 is formed. This shows plow scissors 1. The hair is formed diagonally on the side of the blade body 3. The upper static blade S can easily comb the hair that escapes diagonally through the comb-shaped opening 11 with a large gap.
The hair held in the V-shaped groove 7 can be sheared very easily by the plow blade 17 of the movable blade D. In addition, as shown in D, a combination of plow scissors may be used in which a linear blade 13 is used in place of the plow blade 17 of the movable blade D.

Therefore, the effect of the plow scissors of this invention is that the plow blades can be easily produced by squeeze molding, resulting in extremely high productivity, and the comb-shaped openings 11 formed are shallow and have high strength at the base. The blade is large and wide, making it easy to comb hair through the gap, making it a much improved tool compared to conventional plowshares, and its effectiveness is extremely large.

(Example) An example of this invention will be described below based on the drawings.

FIG. 1 shows a first embodiment of a V-shaped grooved plow blade 2 used in the stationary blade body of the plow scissors 1 of this invention. The end edge 4 on the blade edge side of the strip-shaped blade body 3 is compressed and formed in the longitudinal direction to form a fan-shaped wrinkle 5 as shown in FIG. 2, and a V-shaped groove 7 perpendicular to the joint surface 6 of the blade edge.
are perforated in parallel to the end face of each fan-shaped wrinkle 5, and are formed to hold hair and enable the action of a plowshare. As shown in FIG. 3, the blade body 3 has a blade back 8 formed in a concave curved shape, and a fan-shaped wrinkle 5 formed by squeezing molding protrudes toward the blade surface 9 side of the blade tip edge 4. The hair can be combed through the creases 5 and 10 formed on the upper part of the hair. Note that the thickness of the blade body 3 may be approximately 2 mm. Next, a part of the fan-shaped crease 5 formed on the plow blade 2 shown in FIGS. 1 and 3 is enlarged and a fourth
As shown in FIG. As shown in FIG.
~50 degrees) fan-shaped wrinkles 5 formed on the blade tip edge 4
A comb-shaped opening 11 as shown in FIG. 6 is also formed on the side surface of the blade body 3 of the plow blade 2 by cutting a part of the V.
A second embodiment of the V-shaped grooved cutting plow blade 12 can be obtained in which a wide space is provided between the edges 4 of the fan-shaped wrinkles 5 in which the grooves 7 are formed.

The plow scissors 1 are the plows shown in Example 1 or 2, which have a straight blade 13 or a V-shaped groove on the movable blade body that can be joined to the static blade body having the plow blades 2 and 12 of the above-mentioned Examples 1 and 2. It is formed by combining the blades 14 and 17, and as already mentioned in the explanation of the operation and effect, four types of combinations can be implemented as shown in FIG. 7 A, B, C, and D.

[Effect of idea]

Since this invention has the above configuration, it has the following advantages.

(1) Since it is a comb-shaped plow blade formed by squeezing and shaping the blade and cutting the top obliquely, there is no need for machining with a cutter, and productivity is extremely high.

(2) Compared to conventional plow blades, which cut down to the base of the blade, the blade of this invention has greater strength at the base and has a larger gap so that hair can escape diagonally.

(3) Have a design that meets new modern needs.

(4) In the case of a straight blade combined with a plow blade, burrs appear and localized wear occurs, but by adding the structure of the cutting scissors to the joint, damage to the cutting edge can be reduced.

[Brief explanation of drawings]

Fig. 1 is a partial explanatory view (plan view) of Embodiment 1 of the V-shaped grooved plow blade used in the static blade body of the plow scissors of this invention, Fig. 2 is the same as above (side view), and Fig. 3 is the same as above. (Front view), Fig. 4 is an enlarged explanatory view (plan view) of a part of the plow blade shown in Fig. 1, and Fig. 5 shows a plow blade with fan-shaped wrinkles obtained by cutting the same plow blade diagonally to the joint surface. Enlarged explanatory view (side view), Figure 6 is the same as above (front view),
Figure 7 shows an explanatory cross-sectional diagram of the action of the combination of the static blade and the movable blade of the plow scissors of this invention, A is the combination of a V-shaped grooved plow blade and a straight blade, B is a combination of a V-shaped grooved plow blade and a straight blade. Combination with a grooveless plow blade, C is a combination of a cut plow blade with a V-shaped groove and a cut plow blade without a groove, D is a combination of a cut plow blade with a V-shaped groove and a straight blade, Fig. 8 9 is an overall explanatory view (parallel view) of a conventional plow scissors (straight blade body), and FIG. 9 is an overall explanatory view (plan view) of the same (echelon-shaped blade body). Explanation of the symbols of the main parts, 1... Plow scissors, 2...
V-shaped grooved plow blade, 3...Blade body, 4...Blade tip edge,
5... Fan-shaped wrinkles, 6... Joint surface, 7... V-shaped groove,
9... Blade surface, 11... Opening (cut diagonally), 12... Cut plow blade with V-shaped groove, 13...
...Straight blade, 14...Grooveless plow blade, 17...Grooveless cut plow blade.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) At the end edge 4 of the blade body 3, which has fan-shaped wrinkles 5 formed by squeeze molding in the longitudinal direction, a V-shaped groove 7 capable of holding hair is formed on the end surface of the wrinkle on the joint surface. 6
A plow characterized by a combination of a static blade body having plow blades 2 arranged perpendicularly to each wrinkle and a movable blade body having a straight blade 13 or plow blades 14, 17 that can be joined to the static blade body. scissors. (2) A comb-shaped opening 11 in the blade body 3 of the plow blade 17 formed by cutting a part of the fan-shaped wrinkle 5 formed on the blade tip edge from the surface 9 side of the blade body 3 diagonally to the joint surface 6. The plow scissors according to claim (1) of the utility model registration claim, characterized in that: