JPH02257986A - Replaceable blade for razor for hairdressing - Google Patents

Abstract

PURPOSE:To enable safe and easy of a razor even by an unskilled user by a method wherein blade bodies are arranged to both ends of a safety guard through cushioning sheets symmetrically about the safety guard, and the blade bodies on both sides are worked around the safety guide. CONSTITUTION:Cushioning sheets 3 and 3' and blade sheets 4 and 4' with down cutting edges 4E and 4'E are contained in a nipping groove 2 of a replaceable blade body in a state that they are aligned in a longitudinal direction on both sides in a longitudinal direction. The safety guard, the cushioning sheets, and blade sheets are engaged with each other through nipping protrusions 6, small nipping protrusions, nipping holes 7, 7', 8, 8', and 9, 10, and small nipping holes 12. In this case, the safety guard 5 and the blade sheets 4 and 4' are protruded from the lower edge of a replaceable blade body 1, and the cutting edges 4E and 4'E of the blade sheets have width in the direction of a lateral direction one or two millimeter shorter than that of the safety guard.

Description

Detailed Description of the Invention 40.Object of the Invention (Industrial Field of Application) The present invention relates to a replaceable blade for barber razors (hereinafter simply referred to as razor), and more specifically, a blade provided with a safety guard in the center, A ml plate and a blade plate are sequentially arranged on both sides,
This invention relates to a razor blade that is formed by being clamped and fitted into the clamping groove of the blade body, and which allows use on both sides without damaging the skin.

(Prior art) Replaceable blades like the one shown in Figure 6 have traditionally been widely used for razors used in barbers, and various razor heads for holding the replaceable blades have been developed and are now commercially available. has been done. The most advanced of this type is the
No. 3684゛, Jikko No. 56-10302, Special Publication No. 1983
-5 of the leather disclosed in Publication No. 15351 etc.-
Many have a structure in which a spare blade formed from a single piece of momme can be inserted and removed freely.

In general, experienced barbers are less likely to injure their skin with conventional Japanese razors and razors, but inexperienced barbers are more likely to injure their skin. Therefore, in order to prevent this, a safety guard was extended parallel to the blade edge, contributing to improved safety. However, since the direction of the razor blade is fixed in this method, there is the inconvenience of having to change the razor blade when the area to be shaved changes. Therefore, research and development has been carried out to solve this problem, for example,
The guard part proposed in Japanese Patent Publication No. 268585 is capable of swinging on both sides of the momme, and the guard part proposed in Japanese Patent Application Laid-Open No. 62-2685
As in Publication No. 86, a mechanism in which a blade plate is sandwiched between a guard body with a blade lever plate and rotatably attached to the tip of the handle has been developed and proposed for the purpose of safety and convenience. However, in any case, it consists of one guard body and one blade plate, and the structure is complicated and the manufacturing cost is high.In addition, when used, it is difficult to swing or rotate. These inconveniences have not yet been fully resolved.

As a countermeasure, no attention has yet been paid to improving the replaceable blade itself.

(Problems to be Solved by the Invention) In order to provide a leather that does not injure the skin of even unskilled users, a leather equipped with the above-mentioned safety guard body has been developed. However, as mentioned above, these proposals require high costs due to the complicated structure, and are still accompanied by inconvenience.

In order to eliminate the above-mentioned drawbacks, we have fundamentally improved the razor blade itself to provide a razor blade that is safe and easy to use even by inexperienced people, is inexpensive, and completely eliminates the above-mentioned inconveniences. It is an object of the present invention to do so.

Structure of the Invention (Means for Solving the Problems) The present invention fundamentally changes the replaceable blade itself used for leather,
As shown in FIGS. 3 and 4, the blades ta+41 are symmetrically and integrally arranged and extended on both sides of the safety guard (5) via buffer plates C3++3). This is formed by fitting into the clamping groove (2) provided in the center longitudinal direction in the replaceable blade body (1), and the safety guard (5) and blade plate +4) f4f are The blade edge (4E) of the blade plate protrudes downward from the lower edge of the blade body (1).
(4'E) is sandwiched in such a manner that the width in the transverse direction is narrower by 1 mm to 2 mm than the safety guard.

Provided for use.

(Function) To load the razor blade of the present invention into a razor head and use it, first place the lower edge of the safety guard (5) on the skin, and then tilt the razor at an appropriate angle. Blade edge (4E
) on the skin and shave.

For example, if you hold the razor in your right or left hand and shave your cheeks, then flip the razor and shave upwards.
The first blade edge (4E) and the opposite blade edge (4'E) will come into contact with the skin and cause shaving, so with the safety guard (5) inside, the blade plates on both sides +4) (6) will work. do.

Also, the blade plate (41 (45 tip or blade edge (4B) (4'E
) is in contact with the safety guard (5)K, it will no longer function as a blade and you will not be able to shave your beard.

Therefore, it is important to maintain an appropriate distance between the blade edge and the safety guard. Therefore, a buffer plate +3+ (ai) is provided between the safety guard and the blade plate, and the lower edge of the buffer plate is connected to the blade edge. It has been found that there is a subtle correlation in the interval between the two, which greatly affects the shaving effect.

As a result of the above, the present invention eliminates the trouble of swinging and rotating the guard part like the above-mentioned improved leather, and the safety guard (5)
Due to the presence of this product, even inexperienced users can easily use it without damaging the skin.

(Example) The configuration of the razor blade of the present invention will be explained in more detail based on the drawings.

1 and 2 are a perspective view and a front view showing the overall outline, and FIG. 3 shows an enlarged end surface of the A-A section, and
The figure is an exploded explanatory view of each part constituting the replaceable blade of the present invention.

In Figures 2 and 3, the replaceable blade body +1+ is suitably made of synthetic resin with some degree of elasticity, and has a length of about 56 mm in the longitudinal direction, a width of about 7 mm in the transverse direction, and The thickness is preferably about 5 mm, and the molding is performed by dividing it into two parts symmetrically along the vertical center line.

At this time, a fitting groove a;n tt4 of approximately 1 mm width is provided in the longitudinal direction at the upper position of both sides in Fig. 3, and a fitting groove a; , a clamping groove (2 mm) with a width of 1 mm to 2.5 mm and a height of 4.7 mm to 4.8 mm.
) will be extended. Furthermore, on the inner surface of the clamping groove of the replaceable blade body half shown in the bottom row of FIG.
At the same time as setting up the clamping protrusion (5) of
Two to four small clamping holes a3 are bored at regular intervals.

Similarly, on the inner surface of the clamping groove of the other half of the uppermost replaceable blade body (!1), clamping holes α were bored at positions corresponding to the two to four clamping protrusions (5). At the same time, a small clamping protrusion aυ corresponding to the small clamping hole α is erected and formed on the combined surface a6.

Next, the safety guard (5) is made of metal or synthetic resin,
The length in the longitudinal direction is approximately 54 mm, the width in the short direction is approximately 10 mm, and the thickness is approximately 1 mm. A clamping hole (9) of the same diameter corresponding to the angle is drilled.

The buffer plate +31 +3'l is molded from the same material as the safety guard, but its length in the longitudinal direction is the same as that of the safety guard (5), the width in the transverse direction is approximately 4 mm, and the thickness is α25 mm to 113 mm.
A pinhole is used to pierce a clamping hole 171+75 similar to that of the safety guard.

The blade plate (4 and 4) is preferably made of steel, has the same length in the longitudinal direction as the safety guard (5), and a width in the width direction of 5 mm to 6 mm, and has a clamping hole like the buffer plate. +a+ta
After piercing the i and finishing the forming, the blade edge (4E) (4'E
) as usual.

It is necessary to finish each part shown in FIG. 4 as precisely as possible during processing. Each finished part has a buffer plate +3 on both sides in the longitudinal direction centering on the safety guard (5).
+ +33 and the blade plate +a +41 with the blade edges (4E) (4'E) facing downwards, align them in the longitudinal direction and insert them into the clamping groove (
2) K, the upper end of each part touches the ceiling of the clamping groove, the clamping protrusion (5), the small clamping protrusion U, the clamping hole (7)
1cy'+ +81 tai +9+ (Fit and clamp through 11 and the small clamping hole az. In this case, apply adhesive to the surface where each half of the replaceable blade body mo5 joins, that is, the mating surface aηα6, and join. It is good to do that, or as an alternative, blade plate + a
+4'r itself can be used as a spare blade, and the leather spare blade of the present invention can be reused. However, adhesives cannot be used in this case.

Next, the razor body for putting the razor blade of the present invention into practical use as shown in FIG. It is acceptable to use a material with a suitable shape and material.

Therefore, a guide structure (19) for fitting the razor shell spare blade of the present invention is prepared in the razor head, and is fitted into the fitting groove 03αj of the main body of the spare blade on both sides K in the longitudinal direction of the guide mechanism. Corresponding protrusions (0 or protrusions (not shown)) for
(not shown) may be formed in advance.

The handle part at9 of the razor preferably has an inclination of about 20 degrees with respect to the razor head, as shown in FIG. The effect is great.

Effects of the Invention Japanese razor leather is difficult for unskilled users to use and often damages the skin.

Replaceable blades have recently been adopted for razor blades, making them more convenient and economical. It has also been proposed that a safety guard be attached to the leather itself for inexperienced users, and this is expected to be effective.

However, there still remains some inconvenience in use, and the structure is inevitably expensive.

The hairdressing razor blade of the present invention eliminates all the drawbacks of the conventional ones, is easy to use even for inexperienced people, hardly damages the skin, is easy to manufacture, and can be mass-produced, so it can be supplied at a low price. be able to.

It greatly contributes to convenience, economy, and labor saving, and the effects are significant.

[Brief explanation of drawings]

FIG. 1 is a perspective view, FIG. 2 is a front view, FIG. 3 is an enlarged end view of an A-A section, FIG. 4 is an exploded explanatory view, and FIGS. 5 and 6 are perspective views. 1.1... Spare blade body 2... Clamping groove 3.3...
・Buffer plate 4.4'...Blade plate 5...Safety guard 6...Clip projections 7.7', 8.8', 9, I
Q...Pinching hole 11...Small clamping protrusion 12...
Small clamping hole 13.13...Fitting groove 14...Leather head battle 15...Guidance 16...Leather handle 17.1ge...
・Combined surface

Claims (1)

[Claims] A clamping groove (
In 2), the rectangular safety guard (5) is at the center, and the same rectangular buffer plates (3) (3') are placed on both sides of it.
), and the blade plate (4) with the blade edge (4E) (4'E) facing downward.
) (4') are successively clamped in parallel to the longitudinal direction with each upper end edge in contact with the upper surface of the clamping groove (2), and further the lower edges of the buffer plates (3) and (3') are clamped. extends into the clamping groove, and the blade plate (4
) (4') and the safety guard (5) are made to protrude outside the clamping groove, and the lower edge of the safety guard (5) is the blade edge (
4E) A replacement razor blade for barbers, characterized in that it extends at least one millimeter to two millimeters lower than (4'E).