JP2005169024A - Razor equipped with roller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a razor which prevents a roller from slipping, allows the roller to rotate, and facilitates the generation of minus ions from the roller or others. <P>SOLUTION: In the razor having a rotatable roller 7, recessed diameter reduced parts 21 are formed in an outer peripheral surface part 22, projecting parts 23 is integrally formed in the diameter reduced parts 21, a skin comes into contact with at least a part of the projecting parts at the time of the rotation of the roller. The projecting parts disposed in a axial direction are provided integrally with the diameter reduced parts, in the diameter reduced parts, the skin comes into contact with at least a part of the projecting portions at the time of the rotation of the roller, the roller bending receiving pushing and pressing force at the time of shaving is slidably held/supported by a receiving part 27 having a smooth face part of which at least a part of the outer peripheral part is arranged side by side with and near the roller. At least a surface side of the roller and/or the receiving part are made of a synthetic resin, and a minus ion generating agent for generating the minus ion such as a ceramics powder is blended in the surface side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The invention relates to razors, in particular razors such as safety razors with rollers.

  The technical idea of mounting a roller on a razor equipped with a roller, for example a safety razor, has been known for quite some time. Normally, shave is performed while moving the razor in a direction perpendicular to the longitudinal direction of the blade edge, but the roller disposed on the razor smoothes the operation of the razor and reduces shave resistance when shaving. It has excellent effects such as directing the direction of travel of the skin and giving a massage effect to the skin.

On the other hand, a razor equipped with a roller may be slightly warped by a pressing force applied during shaving, and smooth rotation of the roller may be hindered. Further, when shaving, a treatment for reducing friction with the skin is performed with a shaving foam, soap, etc., so that the roller becomes slippery and the smooth rotation of the roller may be hindered.
Japanese Patent Publication No. 2-23241 is a patent document.

When skin is in contact with the roller during shaving and rotating, the skin first touches the outer peripheral surface to promote smooth rotation of the roller, while the part of the protrusion provided on the reduced diameter portion and the skin Contact. The skin comes into contact with the protrusions with slight or slight rubbing, and a changeable massage is performed on the skin. Also, when friction reducing agents such as shaving foam, soap, and smoother are used, the frictional force generated by contact with a part of the protrusion prevents slipping on the skin surface of the roller. Rotate. Further, the outer peripheral surface portion of the roller that warps upon receiving a pressing force during shaving is slidably held / supported by a receiving portion arranged adjacent to the roller, and the warpage of the roller is limited within a certain range. . A negative ion generator such as ceramic powder is blended in the roller and the receiving portion, and negative ions are generated from the roller that comes into contact with the skin during shaving.

Problems to be solved by the invention

The problem to be solved by the present invention is to provide a razor that prevents the roller from sliding even when a treatment such as reducing friction with the skin is performed with a shaving foam or the like, and the roller rotates smoothly. Another problem to be solved is to provide a razor in which the roller rotates smoothly by performing effective regulation such as preventing or minimizing the warpage of the roller even when a pressing force is applied during shaving. Still another problem is to provide a razor that facilitates the generation of negative ions from a roller or the like during shaving. As used herein, “shaving” includes not only facial shaving but also whole body shaving. The razor may be used for any purpose such as hairdressing or general use, or any specific structure or type of razor as long as it is equipped with a rotatable roller.

Means for solving the problem

The present invention for solving the above-described problems comprises the following means. In a razor equipped with a rotatable roller, a reduced-diameter portion that is recessed in the outer peripheral surface portion is provided, and a protruding portion having a height that does not exceed the outer peripheral surface portions on both sides is provided integrally with the reduced-diameter portion. Sometimes skin contacts at least a part of the protrusion.

Also, a reduced diameter part that is recessed in the outer peripheral surface part is provided, and at the part of the reduced diameter part, at least a part of the upper edge exceeds the outer peripheral surface part on both sides is provided integrally with the reduced diameter part, and the protruding part is provided when the roller rotates. Skin contacts at least a part of

Also, a reduced diameter part that is recessed in the outer peripheral surface part is provided, and a protruding part arranged in the axial direction is provided integrally with the reduced diameter part in the reduced diameter part so that the skin contacts at least a part of the protruding part when the roller rotates. On the other hand, a roller that warps upon receiving a pressing force during shaving is slidably held / supported by a receiving portion having a smooth surface portion in which at least a part of the outer peripheral surface portion is arranged adjacent to the roller. And at least the surface side of a roller and / or a receiving part is made of synthetic wood, and a generator for generating negative ions such as ceramic powder is blended.

The invention's effect

According to the present invention, even when soap or the like is used to reduce the friction with the skin, the roller is effectively prevented from slipping. In addition, even if a pressing force is applied during shaving, the roller maintains smooth rotation by a control such as minimizing the warping of the roller. Also, negative ions are easily generated near the skin when shaving. With these functions, smooth and comfortable shave can be performed.

The present invention. The best mode for carrying out the above will be described. The razor includes a razor head 1, and the razor head 1 includes a cap member 2, a blade body 5, a spacer 6, and a blade base 3, and a plurality of blade bodies 5 that are stacked one above the other are arranged between the cap member 2 and the blade base 3. It is integrated with being sandwiched between them. A spacer 6 is disposed between the blade bodies 5, and a predetermined gap is maintained between the upper and lower blade bodies 5. The razor head 1 is a three-blade razor comprising three upper, middle and lower blade bodies 5 (known structure), but a four-blade razor comprising four and five blade bodies. A 5-blade razor may also be used (not shown). The razor head 1 includes a roller 7 in front of the blade edge 9, and a roller 7 parallel to the blade edge 9 is disposed in the longitudinal direction of the blade edge. The roller 7 is rotatably supported through journals 20 at both ends. The razor head 1 is detachably mounted on a razor holder (not shown) having a handle, and is used as a razor. The razor may be integrated with the handle and the razor head (not shown), and the structure and form of the razor are not particularly limited. Reference numeral 14 denotes a smoother.

The roller 7 has a reduced diameter portion 21 that is recessed in the circumferential direction on the circumferential surface. The outer peripheral surface portion 22 is the outermost outer periphery (that is, the circumferential portion) of the roller, and the reduced diameter portion 21 is provided between the outer peripheral surface portion 22 and the outer peripheral surface portion 22. The roller 7 is provided with a plurality of reduced diameter portions 21 (9 pieces in the drawing) and a plurality of outer peripheral surface portions 22 (10 pieces in the drawing) at regular intervals. Since it should just be a fixed space | interval, it is not limited to an equal space | interval. Although the outer peripheral surface portion 22 and the reduced diameter portion 21 are disposed over almost the entire length of the roller 7, the outer peripheral surface portion 22 and the reduced diameter portion 21 may be provided only on a part of the roller 7 such as a central portion or both end portions. In order for the reduced diameter portion 21 and the outer peripheral surface portion 22 to fulfill their functions, it is only necessary to provide at least one reduced diameter portion and outer periodic portions on both sides thereof (not shown). The outer peripheral surface part 22 on both sides of the reduced diameter part 21 is a belt-like shape having an appropriate width in the circumferential direction, and the cross-sectional shape of the outer peripheral surface part 22 is circular. However, the outer peripheral surface portion can also be provided in a spiral shape continuous with the peripheral surface of the roller (not shown). The outer peripheral surface portion 22 and the reduced diameter portion 21 are arranged symmetrically with respect to the center line RR line at the center of the roller 7. In the case shown in the drawing, there is no outer peripheral surface portion in the central portion (on the line R-R), a pair of outer peripheral surface portions 22 are symmetrically arranged at positions near both sides of the central line, and another outer peripheral surface portion 22 is further outside. Are arranged symmetrically (see FIG. 6). As another structure, an outer peripheral surface portion may be provided in the central portion, and the other outer peripheral surface portions may be symmetrically arranged on both sides with respect to the outer peripheral surface portion of the central portion (not shown).

During shaving, the roller 7 rotates while the skin is in contact with the outer peripheral surface portion 22, and therefore it is preferable that all of the outer peripheral surface portions 22 (plurality) have the same height. However, when shaving, depending on the situation, there may be cases where all the outer peripheral surface portions are not contacted. The skin also contacts the reduced diameter portion in addition to the outer peripheral surface portion, which will be described later. In the present invention, the outer peripheral surface portion 22 is symmetrically arranged with respect to the central portion, and the roller smoothly rotates when the skin contacts the outer peripheral surface portion 22. That is, the operation of the razor during shave can be facilitated, and the traveling direction of the razor can be guided straight.

The reduced diameter portion 21 is gradually reduced in diameter toward the central portion of the reduced diameter portion that is recessed most deeply from the edge of the outer peripheral surface portion 22, and has an inclined surface 25 toward the central portion of the reduced diameter portion. As another structure of the recess, a concave reduced diameter portion that is recessed vertically from the both end edges of the outer peripheral surface portion into the center of the roller (not shown) may be used. The reduced diameter portion 21 is provided with a protrusion 23 integrally with the reduced diameter portion. In the reduced diameter portion 21, four projecting portions 23 are arranged at equal intervals of 90 degrees in the circumferential direction and project radially in the radial direction (see FIG. 7). The protrusion 23 may be inclined in another direction instead of the radial direction (not shown). Moreover, since it should just be arrange | positioned at equal intervals, you may arrange | position at intervals of 180 degree | times (not shown), for example. The nine protrusions are arranged in series in the direction of the axis (GG line in FIG. 6), but are not limited thereto.

Although the protrusion part 23 is a surface part whose upper part 26 is a rectangle, the whole shape, arrangement | positioning aspect, etc. of a protrusion part can be set variously. In other words, the upper portion 26 of the protruding portion is a straight line with the upper edge in the horizontal direction when viewed from the front of the roller (see FIG. 6), but the upper portion is uneven or corrugated (not shown), or is generally concave (not shown). ). FIG. 8 shows the entire upper part having a convex shape. The upper part may be a pointed tip (not shown) instead of a face part. The projecting portion 23 has a horizontally long shape extending in the axial direction and provided integrally with the reduced diameter portion. However, the projecting portion may be composed of a plurality of portions, and in this case, the plurality of portions have a height. It may be different (not shown).

The height of the protruding portion is basically arbitrary, but the height does not exceed the height of the outer peripheral surface portion 22 on both sides, that is, it is configured to be lower than the outer peripheral surface portion 22, while the height of the protruding portion 23 is Set skin to touch. That is, when the roller 7 rotates, the outer peripheral surface portion 22 that comes into contact with the skin receives a light pressing force, but in this case, the skin corresponding to the reduced diameter portion 23 is slightly bulged toward the reduced diameter portion 21. And at least a part of the protrusion 23 is in contact. Since it suffices to contact a part of the protruding part, it may contact not only the upper part 26 of the protruding part but also the front part. Further, the skin can also contact a part of the reduced diameter portion 21, for example, the inclined surface 25 in the reduced diameter portion 21, in particular, a portion close to the edge of the outer peripheral surface portion 22.

A massage effect on the skin can be obtained by contacting the protrusions so that the skin is lightly or slightly rubbed. The massage effect is mainly an effect such as lightly stimulating the skin and comfortable shaving. Although there is a massage effect due to contact with the outer peripheral surface portion 22, when the skin contacts the protruding portion 23, it is possible to give the skin a stimulus that cannot be obtained by contact with the outer peripheral surface portion 22. Furthermore, even when a friction reducing agent such as shaving foam, soap, or smoother is used, the frictional force generated by contact with the protrusion 23 prevents the roller 7 from sliding on the skin surface, and the roller 7 Rotation can be performed.

As another structure, at least a part of the protrusion 23, that is, a part of the upper part 26 has a height exceeding the outer peripheral surface parts on both sides, and the skin is in contact with at least a part of the upper part 26 of the protrusion when the roller 7 rotates. May be. FIG. 8 shows that the central portion of the upper portion 26 of the protruding portion is convex upward, for example, the skin contacts the convex upper end. Also in this case, when the skin comes into contact with a part of the protruding portion 23 beyond the outer peripheral surface portion 22, it is possible to give the skin an irritation different from the contact by the outer peripheral surface portion. Similarly, when a friction reducing agent such as a shaving foam is used, the frictional force generated by contact with one part of the projecting portion 23 prevents the roller 7 from sliding on the skin surface, and the roller 7 has a predetermined amount. Rotation can be performed.

The protrusion 23 further has a function of preventing or adjusting the warpage of the roller. Shaving is usually performed by lightly pressing the razor against the skin. In this case, the roller 7 may slightly warp due to the repulsive force from the skin, that is, the pressing force. When the roller is warped, a load is generated on the rotating shaft, and smooth rotation of the roller is hindered. Generally, a rigid metal roller is less likely to warp, but for example, a synthetic resin roller or the like is more likely to warp than a metal roller. In such a case, the protruding portion 23 functions as a reinforcing portion against the pressing force, and can prevent the roller from warping more than a certain level. The function as the reinforcing portion is related to the conditions such as the thickness and height of the protruding portion, but the protruding portion 23 provided integrally and continuously with the reduced diameter portion 21 has a large reinforcing force. The warp of the roller can be adjusted by the function as the reinforcing portion.

Further, by utilizing the property of a roller that warps upon receiving a pressing force during shaving, generation of negative ions from the roller or the like can be promoted or facilitated. That is, a receiving portion 27 is provided near the roller 7 and parallel to the longitudinal direction, and the receiving portion 27 has a smooth surface portion. The roller 7 and the receiving portion 27 are made of synthetic resin, and a negative ion generator such as ceramic powder is blended in the synthetic resin. Here, the term “made of synthetic resin” includes not only the case where the entire roller 7 and the receiving portion 27 are made of synthetic resin, but also the case where at least the surface side is made of synthetic resin (hereinafter the same). The roller 7 may be made of synthetic resin for the lateral journals 20 and / or bearings (not shown) of the lateral journals at both ends, and may be mixed with a negative ion generator such as ceramic powder. Since a negative ion generating agent is blended, negative ions are generated at the closest point to the skin by contact between the skin and the roller during shaving, particularly when the skin comes in contact with the protruding portion.

In addition, when the roller 7 slightly warps due to the pressing force, the roller, for example, the belt-like outer peripheral surface portion 22 having a certain width comes into light contact with the smooth surface of the receiving portion 27 and the roller 7 is on the smooth surface. A predetermined rotation is performed while sliding. The receiving portion 27 is disposed below the roller 7, and the receiving portion 27 has a concave curved surface whose upper surface corresponds to the outer peripheral surface portion 22 of the roller. Between the roller (outer peripheral surface portion 22) and the receiving portion 27, for example, approximately A slight gap of about 0.1 mm is provided, and the rotating roller is slidably held or supported by a receiving portion 27 to which the roller is fixed. The receiving portion 27 is not limited to a lower position as long as it is at a position facing the roller 7, and the receiving portion may be a receiving plate shape or a simple flat plate shape, and its structure is arbitrary. As described above, when one part of the roller, for example, the outer peripheral surface part 22 rotates while sliding lightly with the receiving part 27, negative ions are generated at a position very close to the skin when shaving. Similarly, as the roller 7 rotates, negative ions are also generated from the lateral journals 20 at the ends and / or bearings (not shown) of the lateral journals. Negative ions are known to have a relaxing effect, and it is useful that negative ions are generated near the skin.

As described above, the rigidity of the roller 7 can be enhanced by the reinforcing function of the protruding portion 23 provided in the reduced diameter portion 21 and the warpage of the roller can be limited. Regardless of the composition of the negative ion generator, the receiving portion 27 also functions as a warpage regulating device that limits the warpage of the roller 7 within a certain range. That is, when the roller 7 receives a pressing force when the roller 7 rotates and slightly warps the roller 7, the roller 7 rotates while sliding with at least a part, for example, the receiving portion 27 to which the outer peripheral surface portion 22 is fixed. In other words, the roller 7 receiving portion 27 is slidably held, and the warping of the roller can be restricted within a certain range. Since the roller warpage is slight and is within a range that does not hinder the smooth rotation of the roller, the roller 7 can perform a predetermined rotation while warping. The roller is likely to warp at the central portion, and usually the central portion or its vicinity and the receiving portion 27 slide in contact with each other. In this case, a pair of outer peripheral surface portions 22 and 22 are symmetrically disposed on both sides of the vicinity of the center line RR, and the warpage of the roller 7 can be effectively controlled. The protruding portion 23 may slide with the receiving portion 27, but when the outer peripheral surface portion 22 slides with the receiving portion 27, the height of the protruding portion 23 does not exceed the height of the outer peripheral surface portion 22, that is, a low configuration. It is good to do.

It is a top view of a razor head provided with the roller in the razor concerning this invention. It is a front view of the razor head. It is a bottom view of the razor head. It is a rear view of the razor head. It is an AA line expanded sectional view of the razor head of FIG. It is an enlarged front view of a roller. It is the RR sectional view taken on the line of the roller of FIG. It is a partially expanded front view of another roller.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Razor head 2 Cap member 3 Blade base 5 Blade body 7 Roller 21 Reduced diameter part 22 Outer peripheral surface part 23 Protrusion part 27 Receiving part

Claims (4)

In a razor equipped with a roller, a reduced diameter portion that is recessed in the outer peripheral surface portion is provided, and a protruding portion having a height that does not exceed the outer peripheral surface portions on both sides is provided integrally with the reduced diameter portion, and at least protrudes when the roller rotates. A razor with a roller that comes into contact with part of the skin. In a razor equipped with a rotatable roller, a reduced diameter portion is provided that is recessed in the outer peripheral surface portion, and at least a part of the upper edge of the reduced diameter portion exceeds the outer peripheral surface portions on both sides is integrated with the reduced diameter portion. A razor comprising a roller provided on the surface and in contact with at least a part of the protruding portion when the roller rotates. In a razor equipped with a rotatable roller, a reduced diameter portion that is recessed in the outer peripheral surface portion is provided, and a protruding portion disposed in the axial direction is provided integrally with the reduced diameter portion in the reduced diameter portion, and at least protrudes when the roller rotates. A roller that warps when pressed by shaving while part of the skin comes into contact with the skin can be slid by a receiving part having a smooth surface part in which at least a part of the outer peripheral surface part is arranged close to the roller. Razor with a roller that is held in The razor provided with the roller according to claim 3, wherein at least the roller and / or the receiving part is made of a synthetic resin and a negative ion generator such as ceramic powder is blended.

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