JPS6013710B2 - disposable razor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to razors, and more particularly to disposable razors that are not reusable.

The razor typically has a substantially rectangular head and a handle coupled to the head, and a razor blade is attached to the head such that its edge extends along one longitudinal side of the head. installed.

In older razors, the handle was usually attached to the head, essentially in the center of one of the two major surfaces of the head, whereas in newer razors, the handle was attached to the active edge of the razor blade. Attached to the head near the opposite longitudinal sides of the head.

In both cases, the traction forces applied to the handle when using the razor affect the head at a considerable distance from the razor blade blade.

This results in a torque or rotational lag around the edge of the razor blade acting on the skin, in addition to the traction forces experienced by the head and therefore the razor blade when shaving. As is generally known, in order to achieve an efficient and pleasant shave, it is necessary for the razor blade to form a certain suitable angle with the skin. It is impossible to keep this most favorable angle between the razor blade and the skin constant due to the rotational or oblique moments and also especially the friction between the razor blade blade and the skin. If the resistance suddenly increases, there is a significant risk that the razor head to which the razor blade is attached will tilt or rotate around the edge of the razor blade, causing the edge to cut the skin. In view of the above circumstances, it is an object of the present invention to provide an improved razor in which the above-mentioned disadvantages are eliminated or at least substantially reduced.

Another object of this invention is that it is particularly suitable for disposable razors.
The object of the present invention is to provide an improved razor in a mold that is simple and inexpensive to manufacture and requires little space for packaging. Another object of the invention is to provide a disposable razor of the type described above, which is constructed so that the risk of cutting oneself during shaving is reduced.

The most important feature of the razor according to the invention is that the handle is attached to the head proximate said longitudinal side thereof adjacent to the edge of the razor blade, and the longitudinal axis of the handle is at least approximately parallel to the edge of the razor blade. It's about intersecting.

Due to this structure of the razor ~ the traction forces acting on the handle during shaving have an effect on the head of the razor and therefore also on the razor blade attached to the head, or in any case at the edge of the razor blade. Affects areas very close to the blade.

Therefore, there is no rotational or pivoting movement around the blade of the razor blade, which makes it very easy for the user to maintain the most favorable angle between the razor blade and the skin. do. The razor head and handle are aligned in such a way that the handle is oriented as closely as possible in the direction of the desired traction, while at the same time obtaining the most favorable angle between the razor blade and the skin for efficient and comfortable shaving. The angle between them is obtuse.

Disposable razors that are simple and inexpensive to manufacture are obtained with a configuration in which the head and handle are formed in a substantially flat, substantially plate-like, angled body of plastic, with the head and handle formed on one side of the top of the body. A first portion provided forms the head and a second portion provided on the other side of the top forms the handle.

The invention will now be described in more detail with reference to the accompanying drawings, which show schematically and by way of non-limiting example some preferred embodiments of the invention.

The disposable razor according to the invention, shown by way of example in FIGS. The other handle lb is bent at a certain angle along the dashed-dotted line 2 in FIG. 1 so as to form a handle on the side of the dashed-dotted line 2.

Where the head la is connected to the handle lb, a longitudinal through slot 3 is provided substantially parallel to the dash-dotted line or bend line 2. Razor blade 4 is that 4 blade green 4
a is arranged on one of the main faces of the head la in such a way that it lies within the slot 3 and extends substantially parallel to the bend line 2.
The edge 4a of the razor blade 4 is arranged in its entirety close to the outer surface of the handle lb, i.e. the surface facing away from the razor head la.

In other words, the blade green 4a of the razor blade 4 is located at the corner formed by the outer surface of the razor head la and the handle lb. According to this razor design, arrow 5 in FIG.
Advantageously, the traction force acting on the handle lb in the direction indicated by affects the head la in the immediate vicinity of the edge 4a of the razor blade 4 and thus also the razor blade 4 attached to the head la. You can get the following effect.

The razor blade 4 is thus subjected to a true traction force substantially parallel to the skin, but is not subjected to any rotational or rotational movement that would tend to rotate or tilt the razor blade 4 about its edge 4a. Advantageously, the head la and the handle lb can form an obtuse angle with each other, as shown most clearly in FIG. 2, so that when the user holds the handle lb and pulls the razor parallel to the skin; It is possible to obtain the most suitable angle between the razor blade 4 and the skin for shaving efficiently and comfortably. Razor blade 4 blade green 4a
The sides of the slots 3 opposite the slots 3 are formed with small parallel grooves 6, which are inserted into the razor blade 4 in a known manner.
It is useful for attaching the skin vertically in front of the blade edge 4a. Alternatively, one side of the slot 3 can be provided with teeth 7 in a known manner, as in the embodiment shown schematically in FIG.

In the razor shown by way of example in FIGS. 1 and 2, the razor blade 4 is attached to one major surface of the head la by a projection 8, said projection 8 being integral with the head la, 4 and is further pressed into a head-like shape by heat and pressure on the outside of the razor blade 4.

However, it is clear that the razor blade 4 can be attached to the razor head la in many other ways, for example by gluing. It will be appreciated that a disposable razor of the type described and illustrated above is very simple to manufacture and inexpensive. The plastic body 1 can therefore be easily produced in a suitable molding or pressing operation, after which the razor blade 4 is fitted in the appropriate position. The razor blade 4 may optionally be placed in the appropriate position simultaneously with the manufacture of the plastic body. Additional benefits are also obtained with the illustrated configuration of the plastic body i in the form of a substantially flat angled plate.

That is, a large number of razors can be stacked closely together during packaging, which means that large quantities of razors can be packaged in a very small volume. As shown in FIG. 1, the handle lb can be provided with a pattern of recesses or through-holes, which partly improve the user's grip and partly serve decorative purposes; The purpose is to be used for advertising purposes.

Thus, a company name or a trade name can be embossed or formed on the handle b, for example.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a disposable razor constructed in accordance with the present invention and shown as an example, and FIG. 2 is a partial sectional view of the razor taken along the 0-RO line of FIG. and the third
The figure is a perspective view of a slightly modified embodiment of the razor according to the invention. Ware...Razor, la...Head, lb...Handle, 4...Razor blade, 4a...Edge of the razor blade. Circle G3F! G. 2 F amount G3

Claims (1)

[Claims] 1 A plastic material having a substantially rectangular plate-shaped first part 1a constituting a razor head to which the razor blade 4 is attached, and a substantially flat plate-shaped second part 1b constituting a handle of the razor. It comprises a body 1 molded in one piece, with the handle 1b coupled to the head along one longitudinal side edge 2 of the head 1a, the axis of the handle being on the longitudinal side of the head. An elongated penetration is formed in the plastic body 1 at a right angle to the edge, the angle between the surface of the handle and the surface of the head being an obtuse angle, and at the longitudinal side edge 2 between the head 1a and the handle 1b. A slot 3 is provided extending parallel to the longitudinal side edge 2 of the head 1a, a razor blade 4 is attached to the side of the head 1a facing the handle 1b, and the edge 4a of the razor blade 4 is attached to the side of the head 1a facing the handle 1b. protrudes through the slot 3, and the blade edge 4a is attached to the handle 1.
A disposable razor, characterized in that it is located on a substantial extension of the plane of b.