JP5903744B2 - Hair washing brush - Google Patents

Description

  The present invention relates to a hair washing brush.

  As this type of brush, there is known one in which a large number of massage protrusions having a tip portion with a slightly larger diameter are projected from the back surface of the base (Patent Document 1).

Shokai 60-79425

  In the brush of Patent Document 1, since the massage protrusions are formed of a single material (elastomer or the like), the touch at the time of washing the hair is uniform, and when the user's preference is not met, it has to be replaced. Also, if used for a long time, it will be worn out, or dirt due to water stains and soap scum will accumulate, making it unsanitary, but there are differences in wear and dirt depending on the frequency and usage of the user, so the replacement time can be seen Hateful.

  The first object of the present invention is to provide a hair washing brush in which the degree of wear of the massaging protrusions can be easily detected by tactile or visual sense. To provide different hair-washing brushes.

The first means is
A plurality of flexible massage protrusions 10 are suspended from the bottom plate 6 of the base 2,
Each of the massage projections 10 is composed of a hard core portion 12 that extends downward continuously from the bottom plate 6 and a covering 14 that covers the outer peripheral surface of the core portion 12 over the tip surface,
And the fixing plate 8 extending from the upper end of the covering 14 is attached to the lower surface of the bottom plate 6 of the base 2,
The covering body 14 and the fixing plate 8 are formed of an elastic material that is more flexible than the core portion 12, and further, a part of the covering end portion 16 on the lower end side of the covering body 14 is thickened to protrude downward. Formed on the friction projection 18
Each of the massage protrusions 10 is easily bent in the same horizontal first direction X, and is not easily bent in the horizontal second direction Y perpendicular thereto.
The core 12 is formed in a strip shape having a long cross section in the second direction Y,
Further, the thickness of the covering body 14 in the first direction X increases as it goes from the distal end to the proximal end of the core portion 12 .

  In this hair washing brush, the massage protrusion 10 is covered with a covering 14 with a friction convex portion 18 on the surface of the core 12, and the core 12 is made of a hard material and the covering 14 is made of a soft material. Propose to form. This changes the feel when touching the hair and skin and tells when to replace the brush.

In addition, this means proposes forming such that it is easily bent in the first direction X as shown in FIG. 1 and is not easily bent in the second direction Y orthogonal thereto. Thus, the brushing may be performed in the first direction when the user likes a soft touch, and in the second direction when the user likes a strong touch. As a method of forming the bending direction to be different depending on the direction, all or part of the core portion 12 in the vertical direction may be formed in a shape that is thinner in the first direction X than in the second direction. This will be described later. If the core 12 is simply thinned in the first direction X, it may be damaged when it is bent and deformed in that direction and may not be restored to its original state. Therefore, the core 12 is covered with an elastic covering 14. ing.
Moreover, in this means, the core part 12 is formed in the shape long in the 2nd direction Y, as shown in FIG. Thus, the structure is difficult to bend in the second direction Y (easy to bend in the first direction X).
Furthermore, in this means, as shown in FIG. 4A, the thickness of the covering body 14 in the first direction X is increased from the distal end of the core portion 12 toward the proximal end so that sufficient elastic force can be obtained. Yes.

The second means includes the first means, and the plurality of friction convex portions 18 are arranged along the longitudinal direction of the covering end portion 16.

In this section, it is arranged reasonably multiple friction projection 18 in the longitudinal direction of the covering end part 16. Further, the wear of the frictional projection 18 changes the shape of the massage protrusion 10 from the unused state shown in FIG. 5 (a) to the one shown in FIG. 7, so that the user can easily notice the wear.

The third means has the second means, and the covering 14 is made of an elastomer .

This means proposes a practical aspect of the second means. That is, an elastomer is used as a relatively inexpensive elastic material as the material of the covering 14 .

The fourth means includes the second means or the third means, and the covering body 14 is formed of a translucent material, and the core portion 12 is formed of a colored material different in color from the covering body. The coated end portion 16 with the friction convex portion 18 is formed in a wave shape when viewed from the second direction Y, and the state in which the coated end portion is worn by friction compared to the unused state is viewed from below. The covering end portion 16 is seen through, and the color of the core portion 12 is clearly visible.

  In this means, the covering 14 is made of a translucent material, the core 12 is made of a colored material, and the color of the covering 14 is lowered when the friction projection 18 is worn as shown in FIG. It is proposed to make it visible through. This makes it easy to know when to replace the brush.

According to the invention relating to the first means, since the core 12 of the massage projection 10 is made of a hard material and the covering body 14 is made of a soft material, the degree of wear can be determined by feel and the time for replacement of the brush can be known.
Further , according to the invention relating to the first means, the tactile sensation differs depending on the direction because the core portion 12 of the massage projection 10 is easily bent in the horizontal first direction X and hardly bent in the second direction Y orthogonal thereto. Since the fixing plate 8 obtained from the lower end of the covering body 14 that covers the core portion 12 is obtained and covered with the elastic covering body 14, even if the core portion 12 is tilted in a direction in which it is easily bent, the covering body is obtained. It will surely return to its original position due to the elastic force of 14.
Further, according to the invention relating to the first means, since the thickness of the covering body 14 in the second direction Y is provided so as to increase from the distal end of the massage projection 10 to the proximal end, a sufficient elastic force can be obtained. .
According to the invention relating to the second means, since the plurality of friction convex portions 18 are arranged along the longitudinal direction of the covering end portion 16, the wear of the friction convex portions 18 can be seen at a glance from the change in shape.
According to the third aspect of the invention, since the covering 14 is made of an elastomer, a sufficient elastic force can be obtained.
According to the fourth aspect of the invention, since the color of the core portion 12 can be seen through due to the wear of the friction convex portion 18, the time of replacement can be known.

It is a bottom view of the brush for hair washing which concerns on 1st Embodiment of this invention. FIG. 2 is a side view of the brush of FIG. 1 viewed from a second direction Y. FIG. 2 is a side view of the brush of FIG. 1 viewed from a first direction X. 4 is an enlarged cross-sectional view of the massage protrusion of the brush of FIG. 1, FIG. 4 (a) is a vertical cross-sectional view seen from the second direction Y, and FIG. 4 (b) is an AA direction of FIG. 4 (a). FIG. It is an expanded sectional view of the projection for massage of Drawing 4, Drawing 5 (a) is a longitudinal section seen from the BB direction of Drawing 4 (a), and Drawing 5 (b) is the bottom view. FIG. 6A is an explanatory diagram of the action of the massage protrusion in FIG. 4, FIG. 6A shows the bending state of the massage protrusion when moved in the first direction X, and FIG. 6B moves in the second direction Y. It shows the state of the bending of the massage projection. It is a figure which shows the state which the processus | protrusion for massage of FIG. 4 was abraded. It is the side view seen from the 1st direction X of the brush for hair washing concerning a 2nd embodiment of the present invention. FIG. 9A is an enlarged view of a main part of the brush of FIG. 8, FIG. 9A is a side view seen from the first direction X, and FIG. 9B is a bottom view thereof. FIG. 10A is a side view of the main part of FIG. 9 after wear, FIG. 10A is a side view seen from the first direction X, and FIG.

  1 to 7 show a hair washing brush according to a first embodiment of the present invention. This hair washing brush includes a base 2 and massage protrusions 10.

  The base 2 includes a main body 4, a bottom plate 6, and a fixed plate 8. The main body 4 is formed by hanging a peripheral wall 4b from a top plate 4a. The bottom plate 6 has a fitting cylinder 7 standing from its outer peripheral portion engaged with the lower inner surface of the peripheral wall 4b. The fixing plate 8 is attached so as to cover almost the entire bottom plate 6. The main body 4 may be provided with a handle (not shown).

  The massage protrusion 10 is formed of a vertically long core 12 and a covering 14. The illustrated massage protrusion 10 is formed in an elliptical shape as viewed from the lower side as shown in FIG. 5B, but its shape can be changed as appropriate.

  The core 12 hangs down from the plurality of locations of the bottom plate 6 through the fixed plate 8. The bottom plate 6 and the core 12 are preferably formed integrally with a hard material. A suitable material is a synthetic resin, such as polypropylene.

  The core 12 is formed so as to be easily bent in the first direction X and not easily bent in the second direction Y perpendicular thereto. In the present embodiment, the core 12 is formed as a strip having a cross-sectional shape that is long in the second direction Y, but this structure can be changed as appropriate. For example, an embodiment in which only the upper part (base part) of the core part 12 is formed into a thin plate shape is also included in the configuration of the core part 12 of the present application. By forming all the core parts 12 so as to be easily bent in the same first direction X and not easily bent in the same second direction Y, the feel to the skin when brushed in the first direction X becomes soft, and the second The feeling to the skin when brushing in the direction Y becomes stronger.

  In the illustrated example, the core 12 has a constant thickness in the vertical direction when viewed from the second direction Y as shown in FIG. 4A and from the first direction X as shown in FIG. And formed into a taper-shaped strip having a small width on the lower end side. However, the structure can be changed as appropriate.

  The covering body 14 covers the entire surface from the outer peripheral surface of the core portion 12 to the front end surface. The covering 14 and the fixing plate 8 are continuously formed integrally and are formed of a flexible elastic material, preferably an elastomer.

  The illustrated covering 14 has a constant width along the core 12 as shown in FIG. 5A when viewed from the first direction X, but when viewed from the second direction Y, the covering 14 shown in FIG. As shown, the width is gradually increased from the distal end (lower end) toward the proximal end (upper end). By making the base end side wide and continuously forming the fixing plate 8, a sufficient elastic restoring force can be exerted when the massage projection 10 is bent in the first direction X.

  The covering body 14 has a covering end portion 16 that covers the front end surface of the core portion 12, and a portion of the covering end portion 16 is provided thick so as to form a friction convex portion 18 that protrudes downward. Yes.

  The convex portion 18 for friction has a role of contacting the skin and producing a massage effect like the tip of the brush hair. Therefore, the frictional projection 18 is provided so as to be deformable by contact with the scalp so as not to damage the scalp S.

  In a preferred illustrated example, a part of the covering end portion 16 in the longitudinal direction (second direction Y) is formed on the friction convex portion 18 over a plurality of locations, and the covering end portion 16 with the friction convex portion 18 is shown in FIG. It is formed so as to have a substantially wave shape shown in FIG. This is because a massage effect corresponding to a plurality of brush hairs can be obtained with one massage protrusion 10. However, a structure in which each covering end portion 16 has one frictional convex portion 18 is not excluded from the scope of the present invention.

  Of the brush for hair washing of the present application, the portion excluding the main body 4 (the bottom plate 6 with the core 12 and the fixing plate 8 with the covering 14) is preferably formed integrally by insert molding or two-color molding. .

  According to the above configuration, as shown in FIG. 6A, when the hair washing brush is brushed in the direction indicated by the black arrow (the first direction X), the massage protrusion 10 including the core 12 is greatly bent. In other words, the massaging projection 10 is deformed so as to escape in the direction opposite to the direction in which the brush is moved, so that a small frictional force F acts on the scalp S as shown by white arrows in FIG. When the massage protrusion 10 is released from the scalp S, the massage protrusion 10 returns to the original vertical state by the elastic restoring force of the covering 14.

  Further, as shown in FIG. 6B, when the hair washing brush is brushed in the direction indicated by the black arrow (second direction Y), the core portion 12 hardly bends and the friction convex portion 18 remains slightly bent. In other words, since each massage projection 10 resists the force to move the brush, a large frictional force F acts on the scalp S as shown by white arrows in the figure. Therefore, the strength of the hair washing brush can be properly used by changing the brushing direction.

  When the hair washing brush is used for a long period of time, the coated end portion 16 is worn flat on the frictional convex portion 18 as shown in FIG. 7 and changes from the unused form of FIG. Since the change in shape is large compared to the case where normal brush hairs wear, the user is likely to notice the wear visually. Further, when the frictional projection 18 is worn as shown in FIG. 7, the feel to the scalp S changes. If the coated end portion 16 is further worn from the state shown in the figure, the hard core portion 12 is exposed, so that the feel further changes. As a result, the user can notice the wear by touch. Therefore, the user can recognize the brush replacement time visually or by touch.

  Hereinafter, another embodiment of the present invention will be described. In these descriptions, the description of the same structure as that of the first embodiment is omitted.

  8 to 10 show a hair washing brush according to a second embodiment of the present invention.

  In the present embodiment, the covering 14 is made of a translucent (preferably semi-transparent semitransparent) material, and the core 12 is made of a colored material different in color from the covering 14.

The thickness d ₁ of the covering end portion 16 excluding the frictional projection 18 is such that the color of the core 12 can be visually recognized from below with the frictional projection 18 being completely worn as shown in FIG. 10 (a). Set to.

The thickness d ₂ of the covering end part 16 including a friction projection 18, when viewed core 12 passes through the covering end portion 16 including the friction projection 18, the color of the core portion 12 The color of the core part 12 is set to such a degree that it cannot be visually recognized or is less visible than when the frictional projection 18 is worn.

  According to the above configuration, when the frictional projection 18 is worn as shown in FIG. 10 (a), the core 12 can be seen through the bottom surface of the massage projection 10 as shown in FIG. 10 (b). Know when to replace the massage brush.

2 ... Base 4 ... Body 4a ... Top plate 4b ... Peripheral wall 6 ... Bottom plate 7 ... Fitting cylinder 8 ... Fixed plate
10 ... Massage projection 12 ... Core 14 ... Cover 16 ... Cover end 18 ... Friction convex S ... Scalp

Claims (4)

A plurality of flexible massage projections (10) are suspended from the bottom plate (6) of the base (2),
Each of the massage projections (10) includes a hard core portion (12) extending continuously downward from the bottom plate (6), and a covering (14) covering the outer peripheral surface of the core portion (12) from the distal end surface. )
And the fixing plate (8) extending from the upper end of the covering (14) is attached to the lower surface of the bottom plate (6) of the base (2),
The covering (14) and the fixing plate (8) are formed of an elastic material that is more flexible than the core (12), and a part of the covering end (16) on the lower end side of the covering (14) Is formed into a plurality of downwardly projecting friction projections (18),
Each massage projection (10) is easily bent in the same horizontal first direction (X), and is not easily bent in the horizontal second direction (Y) perpendicular thereto.
The core (12) is formed in a strip shape having a long cross section in the second direction (Y),
The hair washing brush is characterized in that the thickness of the covering (14) in the first direction (X) increases from the distal end to the proximal end of the core portion (12) . 2. The hair washing brush according to claim 1, wherein the plurality of friction convex portions (18) are arranged along the longitudinal direction of the covering end portion (16). The covering body (14) is characterized by being formed of an elastomeric, hair brush of claim 2, wherein. The covering (14) is made of a translucent material, the core (12) is made of a colored material of a different color from the covering, and the covering end (16) with the frictional projection (18) is formed. ) In the second direction (Y), and the coated end is worn by friction compared to the unused state when viewed from the bottom through the coated end (16). The hair washing brush according to claim 2 or 3, wherein the color of the portion (12) is clearly visible.