JPS63264091A - Razor apparatus - Google Patents

Abstract

A razor head (10) comprising a blade support (5), at least one blade (11, 13) disposed above the blade support (5) and a cap (20) disposed above the or each blade (11, 13). The cap (20) and blade support (5) are movable relative to each other between a first position in which the or each blade (11, 13) is exposed and a second position in which the or each blade (11, 13) is covered. A shaving aid (30) is provided which is disposed in a position for engaging a face when the cap (20) and support (5) are in the first position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disposable razor, and more particularly to a disposable razor having a blade protection cover with an area for receiving a facial treatment agent.

In recent years, disposable leathers have been produced in which the leather cap also serves as a protective cover for the blade.

This is done by moving the cap or the blade and the blade support relative to the cap, such that the cap or the blade support can be fixed in two positions.

The first of two positions places the cap in front of the blade to protect it when the razor is stored, and the second allows the cap to be retracted from the blade to expose the blade for shaving.

U.S. Patent Nos. 4,328,615 and 4,4
No. 43.938 describes a razor in which the cap moves relative to the blade supporting surface and is fixed in the blade exposed position as well as in the blade protected position. This is done by extending the cap side downwardly over the blade support and engaging the lugs projecting inwardly from the camp side with appropriate mating elements on the sides of the blade support.

One of the mating elements is a sliding surface that engages one of the lugs and defines a linear movement of the cap. Another lug engages a series of spaces defined by projections on the front side of the seat. The protrusion and the lug form two locking positions. One of the locking positions retracts the cap and secures it in the blade-exposing position, while the other position secures the cap in the blade-protecting position when the lug engages it. This configuration allows the cap to act as a protective cover, without requiring additional elements or major design changes to the disposable leather. However, problems arose in shaping the sides of the blade support, especially the side flanges.

British Patent Application No. 2,213,594 describes a razor having a handle and a pivoting blade support which is locked along the side of a single cap side. When the blade support pivots through its arc, it moves the blade forward to expose the blade in its extreme counterclockwise position and moves the blade backwards to expose the blade in its extreme clockwise position. to shield. A fastening device is provided by a finger extending outwardly from the rear of the blade support to engage either a mating groove in the cap or a downwardly extending lip of the cap.

The former position provides a locking catch that exposes the blade, and the latter position provides a locking catch that protects the blade. This centrally located finger tends to wear down during use, resulting in
The first, i.e. covered, fixation position causes distortion,
There is a tendency to lose secure positioning within the socket. Also,
As a result of the combination of the separate blade sections into a single cap/side/handle configuration, a pivoting motion occurs and the side of the platform inserted to engage the receiving groove on the side of the single unit configuration. Precise internal dimensions are required for the lugs.

These relatively small lugs can break due to the force required for insertion.

U.S. Pat. No. 4,464,835 describes a leather with a movable cap positioned by a central diagonal catch.

U.S. Pat. No. 4,170,821 discloses lubricating oil,
The use of shaving aids in the form of beard softening leather cleaners, chemicals, etc., and their addition to the leather are also described and oxidized polyethylene exuded from a microporous substrate used as part of the cap. Water-soluble lubricants such as

According to the invention, there is provided a razor device having a camp having a blade-protecting position and a blade-exposing position and including additional elements together with skin treatment components intended to be applied to the face during or after shaving. This is accomplished by placing a skin treatment agent at the face-engaging contact area when the razor is in the exposed position of the blade.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The movable cap device illustrated and described below is similar to that described in U.S. Pat. No. 4,464,935 and is an example of a razor having an exposed blade and blade shield configuration , is desirable because of its simplicity and ease of fabrication. For purposes of this invention, U.S. Pat.
No. 43,938, No. 4,328.615, and British Patent No. 2,113,594,
It goes without saying that any of the prior art razors that provide a re-securing form of blade shielding and blade exposure are also useful. Furthermore, according to the present invention, as an applicator for a skin treatment agent applied during shaving, and/or as an applicator for a skin treatment agent applied after shaving,
Disposable leather is generally used.

As shown in FIG. 1, the razor 0 has an upwardly extending handle 18 which connects to a razor head having a cap 20 and a blade support 5 (see also FIG. 3). (see ). Further, as can be seen with reference to Figures 1 and 8, the skin treatment agent is present on the handle in a face-engaging relationship so that when the blade is exposed for shaving, the skin treatment agent is present on the face. Contact.

As shown in FIG. 2, the blade support 5 includes an upwardly extending circular support surface 7 and a pin or peg 6 centrally located on the surface 7 and rising upwardly therefrom. pin 6
holds the upper blade 11, the lower blade 13, and the spacer 12 and defines a spatial relationship through the gaps on the right and left sides of the upper blade 11.

A corresponding groove should be present in the lower blade 13 and a hole corresponding to the size of the pin 6 should be found in the spacer 12. A pin extends upward from the lower surface of the lower blade 13, which is wider than the upper blade 11, and has a corresponding hole (not disclosed) in the spacer 12.
through which it is positioned to fit into the hole I5.19 of the upper blade 11.

As shown in FIG. 2, the guard par 17 is attached to the seat of the blade support by a rib 4 extending forward. The edge of guard par 17 is an I rising area (Fig. 2,
3 and 4) which shields the edge of the blade and also defines a front stop wall against sliding of the cap. As best seen in Figure 3, a projection 8 rising from the shelf 16 provides a rear stop for sliding of the cap.

As best seen in FIGS. 5, 6, 7, and 8, the side 26 of the cap 20 has a pair of inwardly extending flanges surrounding the blade support assembly 5. . The cap 20 is designed to reciprocate approximately linearly around the seat/blade subassembly. Inspector 2 extending to the rear
7 engages with the inclined portion 14 at the bottom of the downwardly extending inclined surface 14b, exposing the blade 11.13 (see FIG. 7). The cap has a series of recesses 23 corresponding to the upright pins 6 to provide clearance for movement.

When the guard section 27 of the cap is in the position shown by the chain line in FIG. By applying rearward pressure to the cap and the sides of the cap, the cap trough 27 can get over the upward surface 14a and the downward surface 14mi, and the blade is exposed.

As best seen in FIGS. 7 and 8, a strip of material is placed on top of the cap of the present invention, and the skin treatment agent 30 is retained by the front ridges 29 and rear wall 28. The strip of skin treatment agent is prevented from sliding laterally of the cap by the presence of fins 31. The wall 28 prevents the strip from moving rearwardly due to shaving forces applied to the strip.

Examples of skin treatment agents applied during shaving include U.S. Pat.
, 170,821, oxidized polyethylene, certain silicones, and other lubricants. These lubricants provide a shield between the blade and the face after the blade has made its initial movement to remove the shaving cream. The razor always shaves the same area of the face covered in soap suds repeatedly to pick up the hair left behind during the initial shaving. The concept of providing such a lubrication shield is broadly disclosed in the Booth patent. However, due to the fact that the laser of the present invention can be used as an applicator,
You can apply lubricant without your face coming into direct contact with the blade. This allows the user to apply a secondary coating of lubricant not only during the blade shearing motion, but also before the subsequent blade shearing motion. Other agents that may be added alone or in combination with lubricants include bacteriostatic agents and other antiseptics, such as para-aminozenzoic acid, benzoyl peroxide, tanning lotions, aftershaves, lotions, softeners, etc. agent and colon.

When lubricants such as oxidized polyethylene or other additives are used, such as emollients or skin conditioners, which it is desirable to add to the face during shaving, the lubricating strips are removed as shown in FIG. will be placed in Moreover, it is intended to be used in connection with the repeated shaving inherent in current blade technology, as described in US Pat. No. 4,170,821 or British Patent No.
A timely release characteristic such as that disclosed in US Pat. No. 4,270,184 is desirable. (Both of these patents are incorporated by reference). A preferred method for achieving timely release is that these materials, which must be water soluble in order to be released, are disclosed in U.S. Pat.
, 18L973, in a microporous strip. These patents disclose the concept of leaching water-soluble agents, particularly oxidized polyethylene, from a water-insoluble microporous matrix of a suitable thermoplastic such as polystyrene. The combination of oxidized polyethylene and polystyrene or other thermoplastics can be achieved by extruding the oxidized polyethylene and thermoplastic together or by
They can be molded either by injection molding them together into a strip. A suitable release amount for repeated sledding is when the weight ratio of polyethylene oxide to the mixture with thermoplastic is 30.
~80χ, typically about 40-70χ.

A particularly preferred method for joining the strip to the cap is to
By continuous molding, the injection molded cap is formed with appropriate recessed areas covered by appropriate portions of the mold. The shielding portion is pulled out and the mating strip is formed into position in the mold, typically attached by suitable grooves formed in the recessed areas. The miso engages a mating anchor extending downwardly from the strip when forming in place is performed.

The recess provides a rear stop to create a shaving force, as in the case of a structure in which the straps are added and held in place by the wall 2B.

After molding the cap, a second molding step occurs, generally at a lower temperature than the first molding step, in which the cap is used as a substrate for a moldable mixture of thermoplastic and skin treatment agent, such as polyethylene oxide. A second molding step is then performed to mold the mixture into a solid that fits and fits into the recesses and grooves of the cap formed during the first molding.

For the purposes of this invention, the term "skin treatment ingredient" refers to
or limited to ingredients used later.

This definition also applies to microporous strips or U.S. Pat.
Also included are component release devices, such as microencapsulated, as disclosed in US Pat. No. 0,821. The use of complex ejection devices, such as those required for shaving creams or spasms, is particularly advantageous since the ejection device is small, self-contained, and desirably a process suitable for manufacturers of disposable plastics and leather. Excluded from scope.

With a release device such as a microporous water-insoluble strip, the release device can be continuously cast into or attached to the cap and disposable razors can be made with minimal increase in cost. When a large amount of material should be added to the face, such as when adding shaving cream or soap,
This is not possible.

When the band is intended to contact the face, it is particularly desirable to position the band so that it has minimal effect on the shaving geometry. The strip should therefore be placed in the recess of the cap so that only the surface is exposed, or the surface should be raised slightly above the cap. This limits the size and capacity of the dispensing device, so there is no possibility of dispensing shaving cream or soap in this manner.Also, the plane of the strip is substantially equal to the plane of the cap, or instead It is desirable that the rear part be higher than the front part.Due to the fact that the strip itself is water-insoluble, repeated use of this leather does not change the geometry of the shaver.

[Brief explanation of drawings]

Fig. 1 is a side view of the razor of the present invention, Fig. 2 is a plan view of the blade support part combined with the handle used in the razor of the present invention, Fig. 3 is a side view with the sliding cap removed, and Fig. 4 is a side view of the razor of the present invention. The figures are a plan view of the subassembly shown in Figure 3, Figure 5 is a front view of the cap, Figure 6 is a bottom view of the cap, Figure 7 is a sectional view of the leather head of the leather of the present invention, Figure 8 The figure is a plan view of the laser of the present invention. 10...Leather 20...Cap 30
...Skin treatment materials (four others)

Claims (7)

[Claims] (1) At least one blade, a cap that covers the blade, and a blade support disposed below the at least one blade, wherein the blade and the support are actuated. The cap and the support are freely interconnected, and the cap and the support are movable relative to each other between a first position in which the blade is exposed and a second position in which the blade is shielded. ,
A razor device, wherein the cap includes a skin treatment component that is in face-engaging relationship when the device is in the exposed blade position. (2) The laser device according to claim (1), wherein the skin treatment component is a facial lubricant. (3) The laser device of claim (1), wherein the skin treatment agent comprises polyethylene oxide. 4. The laser device of claim 1, wherein the skin treatment agent is exuded from an insoluble microporous carrier strip attached to the cap. (5) Tabs arranged along the periphery of the strip
4. A razor device as claimed in claim 4, wherein the strip is held in place by. (6) the microporous strip is molded on the cap;
A laser device according to claim (4). (7) The skin treatment agent is at least one ingredient selected from the group consisting of an emollient, an antiseptic astrinzene, an acne treatment agent, a solution containing sunscreen, and a solution containing perfume. ) or paragraph (4)
The laser device described in Section.