JP2008017986A - Razor implement and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable even a young woman, who is not used to the use of a razor implement relatively or the like, to use it with the sense of security. <P>SOLUTION: For the razor implement 1, a safety guard 4 having a slit 6 for exposing the blade tip 3a of a blade at prescribed intervals and a bridge 7 for covering the blade tip at a plurality of parts is mounted on the blade 3 attached to the distal end of a handle 2. In the razor implement 1, a color precoated stainless steel sheet or aluminum sheet colored in a chromatic color or the synthetic resin of the chromatic color is used as the safety guard 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a razor tool and a manufacturing method thereof.

  In recent years, a razor tool suitable for use mainly when a woman shave hair on the face surface or prepares a line of eyebrows has been proposed (Patent Documents 1-3).

  FIG. 1 schematically shows the appearance of such a razor tool as a typical one.

  This type of razor tool 1 includes a handle 2 for a user to hold by hand and a blade 3 attached to the tip of the handle 2. A portion of the blade 3 having a width of about 2/3 to 3/4 is embedded in the tip of the handle 2 (generally formed of synthetic resin).

  Usually, in such a razor tool 1, even if a user accidentally operates the razor tool 1 in a direction along the blade edge 3a while applying the blade edge 3a to the skin, the blade edge 3a is not damaged. A member called a safety guard 4 is fixedly mounted and the razor tool 1 is configured.

  As shown in FIGS. 2 and 3, the safety guard 4 is provided with an elongated bridge 7 extending in the lateral width direction on a stainless steel sheet 5 having a length shorter than the length of the cutting edge 3 a and formed in a thin plate shape. A plurality of slits 6 are punched along the longitudinal direction so as to form a large number.

  When the safety guard 4 is fixed and attached to the blade edge 3a, for example, as shown in FIG. 3, the stainless steel sheet 5 is bent at the intermediate portion in the horizontal width direction, and the tip 3b of the blade edge 3a is moved. The blade edge 3a is covered so as to be exposed, and both end portions in the width direction of the stainless steel sheet 5 are spot welded to both side surfaces of the blade 3 and attached.

  As shown in FIGS. 1 to 3, the safety guard in such a razor tool has a semicircular arc on both sides of a portion parallel to a direction orthogonal to the blade edge direction. For example, the dimension is such that the width A of the slit 6 parallel to the longitudinal direction of the stainless steel sheet 5 is about 0.5 to 6 mm, and adjacent slits are formed. The width B of the bridge 7 between 6 and 6 is formed to be about 0.1 to 1.5 mm.

  As described above, the safety guard 4 prevents the blade edge 3a from slipping by the bridges 7. Further, the tip 3b of the blade edge 3a is exposed without being covered with the safety guard 4, and by using the tip 3b of the blade edge 3a, a delicate work such as adjusting the line of each eyebrow is performed. Have been able to.

  The presence of this safety guard allows the user to use the razor tool with a sense of security and safety even when the blade is applied to the skin. Nerves can concentrate on the work itself of preparing the eyebrow line and removing the vellus hair using various razor tools such as the part and the way of applying.

However, in order to enable young women who are relatively unfamiliar with the use of razor tools to use them with more peace of mind, there has been a demand for razor tools that can provide even safer use.
JP 2000-300787 A JP 2000-14945 A JP 2001-129273 A

  In view of the above-described points, an object of the present invention is to provide a razor tool that can be used with a stronger sense of security and safety even by a young woman who is relatively unfamiliar with the use of a razor tool. In particular, even when the eye is used in close proximity, such as using the upper eye, lower eye, and side eyes, or when the line of sight is concentrated on a shaved part reflected in the mirror surface. However, it is possible to appropriately place the blade surface of the razor tool, the presence of the cutting edge, its position, etc. in consciousness, which can contribute to safer use, and such a razor tool. It is intended to provide a method for manufacturing tools.

The razor tool of the present invention that achieves the above-described object has the following configuration (1).
(1) A razor tool in which a safety guard having a slit that exposes a blade edge of the blade at a predetermined interval and a bridge that covers the blade edge at a plurality of locations is attached to the blade attached to the tip of the handle, A razor tool characterized in that the safety guard is made of a chromatic colored material.

  Moreover, in the razor tool of this invention, More preferably, it consists of either of the following (2)-(10).

(2) The razor according to (1), wherein the safety guard is formed of a stainless steel sheet.

(3) The razor according to (1), wherein the safety guard is formed of an aluminum sheet.

(4) The razor according to (1), wherein the safety guard is formed from a stainless or aluminum sheet coated with a chromatic colored resin layer.

(5) The razor according to (1), wherein the safety guard is made of a synthetic resin.

(6) The razor tool according to any one of (1) to (5) above, wherein a thickness of the safety guard is in a range of 10 μm to 250 μm.

(7) The distance (width) W between the tip position on the blade surface side of the handle and the end position of the slit in the blade mounting portion is in the range of 0.1 mm to 2 mm. The razor tool according to any one of (6).

(8) The razor tool according to any one of (1) to (7), wherein the handle is made of a molded product of a transparent or translucent resin.

(9) The razor tool according to any one of (1) to (7), wherein the handle is made of an opaque resin molding.

(10) The above-mentioned resin molded product is a chromatic color and has the same color as the color of the safety guard and a color having a higher brightness than the color of the safety guard. The razor tool according to (8) or (9).

  Moreover, the manufacturing method of the razor tool of this invention which achieves the objective mentioned above consists of the structure of following (11).

(11) After punching slits in the color pre-coating / stainless steel sheet or aluminum sheet,
(A) Bending at the intermediate portion in the width direction of the sheet, fitting the blade edge so as to cover from the front end portion to the vicinity of the base end portion, and fixing and mounting by a spot welding method;
Or
(B) One side of the sheet in the width direction is first joined to the blade edge by spot welding, and then the stainless steel sheet or aluminum sheet is bent at an intermediate portion in the width direction of the sheet, and the other edge is cut by spot welding. Fixed and attached to the
The razor tool according to any one of the above (1) to (10), wherein the blade is attached to a handle.

  According to the first aspect of the present invention, there is provided a razor tool that can be used with a stronger sense of security and specific safety even by a young woman who is relatively unfamiliar with the use of the razor tool.

  In particular, even when using the naked eye, such as using the upper eye, lower eye, and horizontal eyes, where the focus is not close, or when the line of sight is concentrated on a shaved part reflected in the mirror surface. However, it was possible to appropriately place the razor tool blade surface, the presence of the blade edge, its position, etc. in the consciousness, which provided a razor tool that could contribute to safer use. .

  In addition, a razor tool using a colored safety guard can have various specific features and advantages at the time of use, compared to a conventional razor tool using an uncolored safety guard. Can be given an aesthetically pleasing accent, making it easy to see the position of the cutting edge during use, providing users with a sense of safety and security, and distinguishing and using each user according to color It is convenient because it can be used as a mark (marker) for distinguishing purposes.

  According to the present invention of claim 11, the razor tool according to the present invention described above can be manufactured with good process and workability and relatively easy management. is there.

Hereinafter, the razor tool of the present invention will be described in more detail.
In the razor tool of the present invention, a safety guard 4 having a slit 3 that exposes the blade edge 3a of the blade 3 at a predetermined interval and a bridge 7 that covers the blade edge 3a at a plurality of locations on a blade 3 attached to the tip of the handle. The safety guard 7 is an attached razor tool, and is formed from a material colored in a chromatic color.

  Normally, the cutting edge 3a to which the safety guard 4 is attached is not colored, but in particular, the safety guard 4 is visually recognized by attaching the colored safety guard 4 to the uncolored cutting edge 3a. Therefore, it is possible to easily recognize the cutting edge 3a and the safety guard 4, and to recognize the presence of the safety guard 4 and to recognize the position of the cutting edge 3a naturally, which is easy for the user to use. You will be able to feel it.

  That is, when the razor tool of the present invention is used, when such a razor tool is used for a person's face or the like, it is usually used with the naked eye that the upper eye, the lower eye, the side eye, etc. are not in close focus. Even if it is used in such a way that the line of sight goes to one point, such as a shaved part of the mirror surface, and the caution is not given to the blade surface / tip of the razor tool, This makes it possible to place the blade surface, the existence of the blade edge, and the position thereof in consciousness in real time, so that the desired shaving operation can be performed reliably with a sense of safety and security.

  In the razor tool of the present invention, the safety guard 4 is preferably formed of a stainless steel sheet or an aluminum sheet.

  There are no particular restrictions on the method of coloring the stainless steel or aluminum sheet metal sheet, and various methods can be used. In particular, the safety guard is coated with a chromatically colored resin layer. It is preferably formed from a stainless steel or aluminum sheet.

  In particular, when a safety guard is manufactured using the above-described punching process, a sheet of so-called color precoat, stainless steel, or aluminum in which one surface is previously coated with a colored resin layer as a material sheet for punching. The method using is preferable.

Furthermore, when mounting a color precoat stainless steel or aluminum sheet on the blade edge, specifically, for example,
(A) A slit is punched into the color precoat / stainless steel sheet or aluminum sheet, and as will be described later, the stainless steel sheet or aluminum sheet from which a part of the color precoat layer has been peeled is bent at the intermediate portion in the lateral width direction to form a blade edge. Fitting so as to cover from the front end to the vicinity of the base end, and fixing and attaching the peeling treatment part by spot welding,
Or
(B) After punching slits in the color precoat / stainless steel sheet or aluminum sheet and joining one side of the color precoat / stainless steel sheet or aluminum sheet subjected to the same peeling treatment to the blade edge side by spot welding, Bend the stainless steel sheet or aluminum sheet in the middle in the width direction, and fix the other side to the cutting edge by spot welding,
Thus, a razor tool with a colored safety guard attached to the blade edge can be manufactured.

  In addition, when using a stainless steel sheet or an aluminum sheet coated with a colored coating layer as a material for the safety guard, it is generally necessary to perform a bending process when the stainless steel sheet or the aluminum sheet is attached to the blade edge. It is also important that the colored coating material is suitable for bending and has good adhesion to the stainless steel substrate.

  Further, since the safety guard is also used as a constituent material of a part of the razor tool, the safety guard material and the colored coating layer material are resistant to water and detergent. It is preferable to use those having chemical properties. Furthermore, the razor tool is to be used repeatedly for a long period of time, and because of the necessity for storage, the material of the safety guard and the material of the colored coating layer are weatherproof, It is preferable to have various properties such as durability, moisture resistance, and heat resistance.

  In particular, in the case of using a colored coating material for the purpose of obtaining a colored safety guard, from the viewpoint of satisfying the above-mentioned required characteristics, as the coating material, a thermosetting acrylic resin, a thermoplastic acrylic resin, a polyester resin, or It is preferable to use various coating materials such as polyurethane resin.

  The “color” to be colored is not particularly limited, but is preferably a chromatic color for ease of visual recognition. A black or gray achromatic color is not preferable as a colored color because the visibility is not good. The pigment for coloring is not particularly limited, and according to the knowledge of the present inventors, a pigment having a bright and clear hue, such as red, pink, green, yellow, blue, light blue, purple, etc. It is preferable to use it for improving visibility.

  The thickness of the safety guard can be said to be safer as it is thicker, but from the viewpoint of acting the cutting edge, if it is too thick, the shaving performance is not good, and according to the knowledge of the present inventors, the range of 10 μm to 250 μm. Is preferable, and more preferably 30 μm to 150 μm.

  Further, the width A of the slit 6 parallel to the longitudinal direction of the stainless steel sheet 5 and the width B of the bridge 7 between the adjacent slits 6 and 6 may be equivalent to the conventional one, respectively. The thickness of 0.5 to 6 mm and the latter B are preferably about 0.1 to 1.5 mm.

  According to various findings by the present inventors, for example, specifically, an SUS301 stainless sheet having a thickness of 50 μm is coated with an epoxy primer (primer) to a thickness of 2 μm, and then a polyester-based coating is applied thereon. The use of a colored pre-coated stainless steel sheet formed by coating a blue top coat layer made of resin to a thickness of 13 μm to a total thickness of about 65 μm as a safety guard has the above-mentioned various characteristics, and can be bent by bending. It is preferable because it hardly causes cracks and has good adhesion to the stainless steel base of the blade edge.

  In order to integrate the bent safety guard and the blade edge, it is preferable to use various welding methods or various bonding methods, and particularly preferably, spot welding.

  As the spot welding method, for example, the portion to be spot welded is covered with the primer layer or the colored top coat layer (colored) described above partially, for example, in a circular shape having a diameter of about 3 mm, and thereafter The electrode having a tip diameter of about 2 to 3 mm is pressed from both sides of the safety guard from which the coating has been peeled off, and the welding current is applied to the electrode for a time required for welding of about 0.01 to several seconds, By energizing, the metal base material of the blade and the safety guard is welded and can be joined.

  Further, according to various findings of the present inventors, the colored safety guard has a certain width or more in the length direction in order to more effectively exert the effect of using the colored safety guard of the present invention. It is preferable to be embedded in the handle so as to be exposed continuously. FIG. 4 illustrates this, and is a schematic model diagram showing an enlarged mounting portion of the blade, which is the tip of the razor tool of the present invention. The blade (safety guard portion) shown in FIG. )), The distance (width) W between the tip end position on the blade surface side of the handle and the end position of the slit is the width, and the width W is preferably 0.1 mm to 2 mm, more preferably 0.8 mm. It is preferable that the colored safety guard is exposed at 3 mm to 1.5 mm.

  In addition, when trying to integrate with an adhesive using an adhesive without welding, various adhesives are applied to the back side of the colored pre-coated stainless steel sheet, first joined on one side, and then bent. It is preferable to heat and cure as necessary after attaching and integrating the other side. However, when a third bonding material such as an adhesive is used, the entire thickness may be increased at the bonding location, so that the thickness does not hinder the attachment to the handle. It is important to pay attention to.

  As a material for the safety guard, a thin steel plate, a stainless steel wire, an aluminum wire, or the like can be used in addition to the stainless steel or aluminum thin plate described above. In addition to the metal material, for example, a synthetic resin material such as a synthetic resin sheet such as a colored plastic film or a colored synthetic resin molding can be used.

  The handle for attaching the blade is not particularly limited, but it is preferable to use a synthetic resin. Since the handle part usually has a part covering the blade, and eventually a part covering the safety guard, it is translucent or transparent so that the color of the safety guard part is not hidden. For example, it may be composed of a resin molding using a simple synthetic resin. However, the pattern may be formed of a molded product of an opaque synthetic resin for further design effect and ease of visual recognition.

  Furthermore, the resin molded product constituting the handle may be either a translucent or transparent synthetic resin or an opaque synthetic resin, or may be colored, and is particularly chromatic and has a safety guard. It is also preferable to use a resin molded product having the same color as the chromatic color and higher color.

  When the entire razor is colored with chromatic colors, it is easy to find the location where it is used when it is used in a bathroom or bathroom where the lighting is slightly dark, or when it is taken out from the storage such as a pouch. Therefore, it is possible to visually recognize the location, and the presence / absence is easily recognized, thereby improving safety and handling.

The manufacturing method of the razor tool of the present invention can be manufactured by various methods, and is not particularly limited, but typically, as described above, first, it was cut according to the dimensions of the safety guard. After punching a slit in a rectangular color precoat / stainless sheet piece or color precoat / aluminum sheet piece of width 4-8 mm × length 20-40 mm,
(A) Bending at the intermediate portion in the width direction of the sheet piece, fitting the blade edge so as to cover from the front end portion to the vicinity of the base end portion, and fixing and mounting by spot welding method;
Or
(B) After joining one side in the width direction of the sheet piece to the blade edge piece side by spot welding, the stainless steel sheet piece or aluminum sheet piece is bent at the intermediate portion in the transverse width direction of the sheet piece, and the other side is spotted Fixed to the cutting edge by welding method,
In addition, the method of manufacturing by attaching the blade to the handle is preferable because the process, workability, management thereof, and the like can be manufactured relatively easily.

  In addition, when attaching a safety guard to the blade using an adhesive, it is important to manufacture under conditions that take care not to peel off the safety guard at the end due to repeated use by the user. It is.

Hereinafter, based on an Example, the specific structure and effect of the razor tool of this invention are demonstrated.
Example 1
A razor tool according to the present invention having the structure schematically shown in FIG. 4 was prepared.

In preparation, the blade edge 3a length of the prepared blade is 34 mm.
The safety guard is a 50 μm thick SUS301 stainless steel sheet coated with an epoxy primer (primer) to a thickness of 2 μm, and a yellow topcoat layer made of polyester resin is coated on one side to a thickness of 13 μm. A precoated stainless steel sheet coated with a deep yellow color having a length of 30 mm and a width of 6 mm and having a total thickness of about 65 μm was used.

  2 where the pre-coated stainless steel sheet is bent in the middle in the width direction and spot-welded after the slit is punched in the slit shape shown schematically in FIG. The coating resin of the resin coating layer at each of the four places (two places on one side × front and back sides) was peeled off by a diameter of about 2.5 mm.

  The pre-coated stainless steel sheet was placed on the cutting edge, and a spot weld electrode having a diameter of 2 mm was energized for about 1 second while being pressed from both sides, and a safety guard was spot-welded to the cutting edge and fixedly mounted.

  The obtained blade was attached and fixed to a handle molded with a transparent resin. The shape of the handle was formed so that the width of W shown in FIG. 4 was W = 1.1 mm.

  The razor tool according to the present invention thus obtained was prepared for a panel of five young women, and the eyebrows were prepared in a slightly dark toilet, which is common for the lighting of the toilet, and the eyebrows around the eyebrows and the eyes. We had you use for removal.

  We asked five panelists about their feelings of using the razor of the present invention. As a result, they were able to confirm the position of the cutting edge throughout the work, without worrying about safety despite using an unfamiliar blade. It was popular that it could be used.

Comparative Example 1
A razor tool was manufactured in the same manner as in Example 1 except that a stainless steel sheet not colored was used as a safety guard (Comparative Example 1).

  Similar to Example 1, the same five panelists were asked about their feelings of use of the razor tool of Comparative Example 1. When removing vellus hair, the same level of usability as that of Example 1 was obtained. I was able to use it, but when I used it to shape the eyebrows, there was a point that it was difficult to recognize the position clearly even if I wanted to pay attention to the position of the blade edge. It was an evaluation that it had to be a little messy, and with that, it was an evaluation that it felt a little anxious about safety.

FIG. 1 is a side view illustrating a schematic structure of a razor tool that has been conventionally used and can also be used in the present invention. FIG. 2 is a plan view showing an example of a safety guard used in a razor tool that is conventionally used and can also be used in the present invention, and illustrates an unfolded state before being attached to the razor tool. It is. FIG. 3 is a side view illustrating a part of a razor tool that has been conventionally used and that can also be used in the present invention, and illustrates a state where the safety guard illustrated in FIG. It is. FIG. 4 is an enlarged schematic model diagram showing a portion where a blade which is a tip of the razor tool of the present invention is mounted.

Explanation of symbols

1: Razor tool 2: Handle 3: Blade 3a: Cutting edge 3b: Tip portion 4: Safety guard 5: Stainless steel sheet 6: Slit 7: Bridge A: Width of slit 6 parallel to longitudinal direction of stainless steel sheet 5 B: Slit 6 , The width of the bridge 7 between 6 W: distance (width) between the tip position on the blade surface side of the handle and the end position of the slit in the blade (safety guard portion) mounting portion

Claims (11)

  A razor tool in which a safety guard having a slit that exposes the blade edge of the blade at predetermined intervals and a bridge that covers the blade edge at a plurality of locations is attached to a blade attached to the tip of the handle, A razor tool characterized by being formed from a chromatic colored material.   The razor tool according to claim 1, wherein the safety guard is formed of a stainless steel sheet.   The razor tool according to claim 1, wherein the safety guard is formed of an aluminum sheet.   The razor tool according to claim 1, wherein the safety guard is formed of a sheet made of stainless steel or aluminum coated with a chromatic colored resin layer.   The razor tool according to claim 1, wherein the safety guard is made of a synthetic resin.   The razor tool according to any one of claims 1 to 5, wherein a thickness of the safety guard is in a range of 10 µm to 250 µm.   The distance (width) W between the tip position on the blade surface side of the handle and the end position of the slit in the blade mounting portion is in the range of 0.1 mm to 2 mm. The razor tool described in 1.   The razor tool according to any one of claims 1 to 7, wherein the handle is made of a molded product of a transparent or translucent resin.   The razor tool according to any one of claims 1 to 7, wherein the handle is made of an opaque resin molding.   The resin molded product is a chromatic color and has the same color as the color of the safety guard and a color having a higher brightness than the color of the safety guard. The razor tool according to claim 9. After punching slits in the color precoat, stainless steel sheet or aluminum sheet,
(A) Bending at the intermediate portion in the width direction of the sheet, fitting the blade edge so as to cover from the front end portion to the vicinity of the base end portion, and fixing and mounting by a spot welding method;
Or
(B) After joining one side in the width direction of the sheet to the blade edge side by spot welding, the stainless sheet or aluminum sheet is bent at an intermediate portion in the width direction of the sheet, and the other side is made into a blade edge by spot welding. Fixing and wearing,
The razor tool according to claim 1, further comprising attaching the blade to a handle.

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