JP6417294B2 - Protective sheet - Google Patents

Description

  The present invention relates to a protective sheet that is used to absorb the impact received on the lower part of the kneecap at the time of sitting straight and to suppress the darkening of the skin on the lower part of the kneecap.

  In Japan, in every scene, from traditional Japanese culture such as tea ceremony and flower arrangement, to calligraphy and koto, martial arts such as kendo and karate, and housework such as changing diapers for children and collapsing laundry. I often sit straight. However, when sitting on the floor or tatami, when sitting on the floor, the lower part of the kneecap is not only painful and painful, but also due to pressure and friction between the floor and tatami, dullness and pigmentation may occur. As a result, darkening occurs in the lower part of the kneecap. This darkening is considered to be caused mainly by activation of melanocytes due to excessive stimulation of the skin, and a large amount of melanin secretion in an attempt to guard the skin. In particular, since the lower part of the kneecap is exposed when a skirt is worn, there is a demand for avoiding the generation of such darkening as much as possible from the viewpoint of beauty.

  Until now, in order to avoid the impact received on the lower part of the kneecap and the darkening which arises, since there was no especially effective countermeasure, the supporter as disclosed, for example in patent document 1 has been used. As shown in FIG. 4, the supporter 100 of Patent Document 1 is formed in a cylindrical shape having an opening 101 at a position corresponding to the kneecap 102. When the supporter 100 is attached to the knee 103, the supporter 100 is removed from the back of the knee except for the kneecap 102. It is configured so as to cover the front of the knee and the lower part to the upper part of the kneecap 102.

JP 2003-227014 A

  However, since the supporter 100 of Patent Document 1 covers from the back of the knee to the front of the knee and from the lower part to the upper part of the kneecap, it is easily known to others that the supporter is worn from above the clothing. In particular, when a woman wears a kimono, the supporter 100 lifts the kimono, and when the kimono is thin, the supporter 100 can be seen through the kimono. Can not.

  The present invention has been made in view of the above-described problems. A protective sheet that absorbs the impact received on the lower part of the kneecap at the time of sitting straight and suppresses darkening on the skin on the lower part of the kneecap. The purpose is to provide.

  The protective sheet of the present invention is a protective sheet used for absorbing the impact received on the lower part of the kneecap at the time of sitting upright and suppressing the darkening of the skin on the lower part of the kneecap, The sheet includes a protective layer made of a soft resin that protects the lower part of the kneecap, and a pressure-sensitive adhesive portion for attaching the protective layer to the skin below the kneecap, and the protective layer includes A lower knee region comprising a first skin region corresponding to a rough surface of the tibial bone and a second skin region corresponding to both lateral sides of the rough surface of the tibial surface when attached to the skin of the lower portion of the knee head. It is characterized by being formed in a size that covers it.

  The protective layer has a central portion that covers the first skin region, and a pair of side portions that extend from the central portion and covers the second skin region, and the protective layer is attached to the lower kneecap region. When attached, the pair of side portions are formed so as to extend beyond end portions on the patella side of the center portion, and at the end portions on the patella side, outer edges of the center portion and the pair of side portions are formed. Further, it is preferable that a concave portion having a concave central portion is formed.

  In addition, it is preferable that the outer peripheral portion of the protective layer is formed in a tapered shape so that the thickness decreases toward the outer edge of the protective layer.

  Further, the adhesive portion is attached to the surface of the protective layer opposite to the surface in contact with the skin so as to protrude outward from the outer edge of the protective layer, and protrudes outward from the outer edge of the protective layer. It is preferable to be configured so that the cut portion is affixed to the skin.

  According to the present invention, it is possible to provide a protective sheet that can absorb the impact received on the lower part of the patella of the leg when sitting straight and suppress the darkening of the skin on the lower part of the patella.

(A) is a figure which shows typically the state by which the protective sheet which concerns on embodiment of this invention was affixed on the skin of the lower part of the kneecap of a leg, (b) is AA of (a). It is a figure showing a line section typically. (A) is a front view of the protective layer of the protective sheet of FIG. 1, (b) is a BB line sectional view of (a). It is a schematic diagram for demonstrating the usage method of the protective sheet of FIG. 1, (a) is a figure which shows the state which mounted the protective layer of the protective sheet on the skin of the lower part of a kneecap, (b) FIG. 4 is a view showing a state where an adhesive portion is pasted on the protective layer, (c) is a view showing a state where the user of the protective sheet is sitting upright, and (d) is a view where the user stands up. It is a figure which shows the state of the leg at the time. It is a figure which shows the conventional supporter.

  Hereinafter, a protective sheet according to an embodiment of the present invention will be described with reference to the drawings. However, the embodiment described below is merely an example, and the protective sheet of the present invention is not limited to the following embodiment.

  As shown in FIGS. 1A and 1B, a protective sheet 1 according to an embodiment of the present invention protects the lower part of the kneecap P, and is made of a soft resin protective layer 2 formed in a sheet shape. And an adhesive portion 3 for attaching the protective layer 2 to the skin below the kneecap P. The protective sheet 1 has a protective layer 2 attached to the skin below the kneecap P of the leg L by the adhesive portion 3, and absorbs the impact received on the lower part of the kneecap P of the leg L when sitting upright. Used to suppress darkening of the underlying skin.

  The protective layer 2 is formed in a sheet shape with a soft resin and is attached to the skin below the kneecap, so that it absorbs the impact received on the lower leg knee when sitting upright and darkens the skin below the kneecap. It is a member that suppresses the occurrence of As shown in FIG. 1A, the protective layer 2 is applied to the skin below the kneecap P, and the horizontal direction of the first skin region S1 corresponding to the tibial rough surface T and the tibial rough surface T is horizontal. It is formed in such a size as to cover the lower kneecap region S, which is composed of the second skin region S2 corresponding to both side surfaces. Here, the rough surface of the tibia is a region where the bone in the vicinity of the lower patella of the tibia is raised. It is the part which contacts. As shown in FIG. 1A, the first skin region S1 is located in a region extending along the extending direction of the leg L on and around the rough surface of the tibial bone T, and at least the kneecap P corresponding to the patella. The region of the skin located in the region below and above the intermediate height of the tibia (preferably above the height of the upper third to third of the tibia). The second skin region S2 is a region of skin extending from the first skin region S1 toward both sides in the horizontal direction of the leg L. From the both sides in the horizontal direction of the tibial rough surface T, that is, from the tibial rough surface T, It is the area of the skin located in the area (front half of the leg) up to both sides of the tibia in the horizontal direction at the maximum. In addition, the protective layer 2 is formed in a size that covers the lower knee region S, not only when the surface area of the protective layer 2 and the surface area of the lower knee region S completely match, The case where the surface area of the layer 2 is slightly smaller than the surface area of the lower kneecap region S (see FIG. 1A) and the case where the surface area of the protective layer 2 is slightly larger than the surface area of the lower kneecap region S is included. It is a concept. Specifically, when the protective layer 2 is affixed to the skin below the kneecap P, at least, the user who has the protective layer 2 affixed to the skin below the kneecap P is in a sitting posture. Even if the body is tilted back and forth and left and right, the skin around the tibial rough surface T is formed so as not to directly contact the seating surface such as tatami mats, floors, and carpets. A size that cannot be easily confirmed, for example, a height from the middle height of the shin (preferably the height of the upper tibia to the upper third to third quarter) to the kneecap P, from both sides of the shin to the front of the shin It is formed in the size of the width of the skin located in. More specifically, the protective layer 2 has a height of 2 cm or more and 12 cm or less, which is the maximum length in the extending direction of the leg L, when attached to the skin below the kneecap P, and the width direction of the leg L. The width, which is the maximum length, is formed in a size of 4 cm or more and 14 cm or less. If the height of the protective layer 2 is smaller than 2 cm and the width is smaller than 4 cm, the skin below the kneecap P cannot be sufficiently protected. On the other hand, when the protective layer 2 has a height greater than 12 cm and a width greater than 14 cm, the protective layer 2 is applied to the skin from the top of the clothing when applied to the skin, as will be described later. It will be easily known to others. From this viewpoint, the protective layer 2 is preferably formed to have a height of 4 cm or more and 10 cm or less, a width of 6 cm or more and 12 cm or less, a height of 6 cm or more and 8 cm or less, a width of 8 cm or more, More preferably, the size is 10 cm or less.

  The protective layer 2 is formed in a size so as to cover the lower knee region S, so that the user of the protective sheet 1 sits down when used by being attached to the skin below the kneecap P. It can absorb the shock when the knee is placed on the seating surface such as tatami mat, floor, carpet, etc. Even when tilted, the pressure and friction that the skin receives from the seating surface is relieved, so that darkening of the skin below the kneecap P can be suppressed. Furthermore, since the protective layer 2 is formed in a size that covers the lower kneecap region S, even if the protective layer 2 is affixed to the skin below the kneecap P, the protective layer 2 is applied from above the clothing. It is not easily known to others that it is stuck on the skin. That is, unlike the conventional supporter 100, the protective layer 2 does not cover a wide area from the lower part of the kneecap to the upper part and from the back of the knee to the front of the knee. Even when wearing the clothes, the clothes are not lifted, so that it is hardly noticed by others that the protective layer 2 is attached to the legs.

  The thickness of the protective layer 2 is not particularly limited as long as the protective layer 2 is formed in a sheet shape, and is appropriately set according to the type of molding material used and the required shock absorption capacity. Can do. However, the thickness of the protective layer 2 is such that when the protective layer 2 is affixed to the skin below the kneecap P, the clothing does not float and is not easily known from above the clothing. It is desirable to be. Accordingly, the protective layer 2 is formed to a thickness of, for example, 1 mm or more and 6 mm or less, preferably 1.5 mm or more and 5 mm or less, more preferably 2 mm or more and 4 mm or less.

  The soft resin used to form the protective layer 2 is soft and flexible so long as it can absorb the impact received by the lower part of the kneecap and suppress the darkening of the skin under the kneecap. There is no particular limitation, and any resin material can be used. For example, as a soft resin, a synthetic resin that deforms when an external force is applied in a fixed state but recovers to a fixed state when the external force disappears can be used. A styrene elastomer, an olefin elastomer, a vinyl chloride elastomer, a urethane Examples of such elastomers include amide elastomers, amide elastomers, silicone rubbers, and fluororubbers. Among them, a styrene elastomer synthesized transparently or translucently can be suitably used from the viewpoint of hardness and difficulty in conspicuous when attached.

  More specifically, as shown in FIG. 1A and FIG. 2A, the protective layer 2 of the present embodiment extends from the central portion 21 that covers the first skin region S1, and from the central portion 21. It has a pair of side part 22 which covers two skin area | regions S2. The central portion 21 covers the first skin region S1, and mainly absorbs the impact received from the seating surface when the user puts his knee on the seating surface in an attempt to sit upright, and from the seating surface when sitting upright. Relieve pressure and friction. The pair of side portions 22 covers the second skin region S2, and mainly reduces the pressure and friction received from the seating surface when the user collapses the normal sitting posture and tilts the body to the left and right. The protective layer 2 is formed such that when the protective layer 2 is affixed to the lower kneecap region S, the pair of side portions 22 extends beyond the end portion 21a of the central portion 21 on the kneecap P side. In the end portion 21a on the side, a concave portion 23 in which the central portion 21 side is recessed is formed on the outer edges of the central portion 21 and the pair of side portions 22. In other words, the protective layer 2 is formed between the end portion 21a on the kneecap P side of the central portion 21 and the portion of the pair of side portions 22 extending beyond the end portion 21a of the central portion 21 to the kneecap P side. A concave portion 23 that is indented when the protective layer 2 is viewed from the P side is formed, and is formed in a substantially heart shape in a front view. By forming the concave portion 23 in the protective layer 2 in this manner, as will be described later, the subcutaneous fat (including the skin) that hangs down from the kneecap P side when the user stands up from the sitting posture is included in the concave portion 23. In order to enter, it is suppressed that it is caught in the protective layer 2 and the protective layer 2 is peeled off or the user feels uncomfortable. Further, since the pair of side portions 22 are formed so as to extend beyond the end portion 21a on the kneecap P side of the central portion 21, for example, the user tilts the body obliquely forward from the sitting posture. Even if there is, it can protect the skin surface appropriately.

  In this embodiment, the protective layer 2 is formed in a substantially heart shape when viewed from the front. However, as long as the concave portion 23 is formed, the protective layer 2 does not necessarily have a substantially heart shape. For example, the concave portion 23 is formed. The outer edge opposite to the outer edge may be formed in a substantially linear shape extending in the width direction of the leg L, and the outer edge opposite to the outer edge on which the concave part 23 is formed is Similar recessed portions may be formed. Further, in the present embodiment, the central portion 21 and the pair of side portions 22 are continuously formed integrally with the same soft resin material, but may be formed continuously with different soft resin materials, Moreover, you may form discontinuously, such as providing a space between both.

  Further, as shown in FIG. 1B and FIG. 2B, the protective layer 2 is tapered at the outer peripheral portion 2a of the protective layer 2 so that the thickness decreases toward the outer edge 2b of the protective layer 2. It is formed in a shape. Since the outer peripheral portion 2a of the protective layer 2 is formed in a taper shape, the step between the outer edge 2b of the protective layer 2 and the skin is reduced when the protective layer 2 is attached to the skin. Therefore, the step is not clearly lifted on the clothes, and it is difficult for others to know that the protective layer 2 is stuck on the clothes.

  The adhesive portion 3 is a member for attaching the protective layer 2 to the skin below the kneecap P. In this embodiment, as shown in FIGS. 1 (a) and 1 (b), the adhesive portion 3 has an outer edge 2b of the protective layer 2 on the surface of the protective layer 2 opposite to the surface in contact with the skin. The part which protruded outside from the outer edge 2b of the protective layer 2 is affixed on skin. More specifically, the adhesive portion 3 has a surface area larger than the surface area of the protective layer 2 and is formed in a substantially rectangular film shape with one surface having adhesive force, and through one surface having adhesive force. Then, it is attached to the skin so as to cover the entire surface of the protective layer 2. Thus, the adhesive part 3 is applied to the skin so as to cover the entire surface of the protective layer 2, particularly the outer peripheral part 2 a of the protective layer 2, so that the outer peripheral part 2 a of the protective layer 2 is pressed to the skin side, The level | step difference produced between the outer edge 2b of the protective layer 2 and skin becomes smaller. Therefore, even if the protective layer 2 is affixed to the skin below the kneecap P, the step does not rise clearly on the clothing, and it is difficult for others to know that the protective layer 2 is affixed from above the clothing. Become.

  However, the shape, material, arrangement, etc. of the adhesive part 3 are not particularly limited as long as the protective layer 2 can be attached to the skin, regardless of the above-described embodiment. For example, the adhesive part 3 may be formed in a ring shape that does not cover the central region of the protective layer 2 but covers only the outer peripheral part 2 a, or has a surface area smaller than the surface area of the protective layer 2 and adheres to both surfaces. It may have a force and may be disposed between the protective layer 2 and the skin. Moreover, the adhesive part 3 may be formed as an adhesive tape in which an adhesive such as an acrylic adhesive, a silicone adhesive, or a rubber adhesive is provided on a film-like support such as polyurethane, polyethylene, or polyester. It can also be configured as a viscous liquid consisting only of an adhesive. Further, the adhesive portion 3 may be formed as a separate body from the protective layer 2 as in this embodiment, or is formed integrally with the protective layer 2 as a portion having an adhesive function provided in the protective layer 2. May be.

  Below, with reference to Fig.3 (a)-(d), the effect | action and effect of the protection sheet 1 of this embodiment are demonstrated. However, the usage method of the protection sheet 1 demonstrated below is a mere example, and does not limit the structure and usage method of the protection sheet of this invention.

  First, as shown in FIG. 3A, the user of the protective sheet 1 puts the protective layer 2 on the kneecap so as to cover the lower kneecap region S below the kneecap P of the leg L before sitting straight. Place on the skin under P. Since the protective layer 2 exemplified here is formed of a styrene-based elastomer and has a weak adhesive force, the protective layer 2 can be easily attached to the skin and can be easily peeled off. Easy to adjust. At this time, the protective layer 2 is placed so that the side of the protective layer 2 on which the concave portion 23 is provided faces the kneecap P side.

  Next, as shown in FIG. 3B, the user attaches the adhesive portion 3 formed in a film shape from the surface of the protective layer 2 so as to cover the entire protective layer 2. Thereby, the attachment of the protective layer 2 is completed. Thereafter, the user wears the clothes, but the protective layer 2 is attached so as to cover the lower kneecap region S and does not cover a wide range of skin such as the kneecap, the upper side of the kneecap, and the back of the knee. It is not easily known by others that the protective layer 2 is attached. In addition, since the adhesion part 3 illustrated here is a polyurethane-made film in which an acrylic adhesive is provided on one side, which is formed transparently or translucently, the protective sheet 1 is formed transparently or translucently. The protective layer 2 and the adhesive part 3 are less conspicuous as a whole, and the color does not show through the clothing.

  A user who has applied the protective layer 2 to the skin below the kneecap P first puts his knee on the seating surface C such as a tatami mat, and then puts his buttocks in a state where the soles are substantially perpendicular to the seating surface C. 3 is placed on the heel, and finally, the feet are stretched so that the soles of the feet approach substantially parallel to the seating surface C (Fig. 3 (c)). State). At this time, when the user puts the knee on the seating surface C, the user receives a large impact on the rough surface of the tibia below the kneecap P, but the central portion 21 of the protective layer 2 provided below the kneecap P is affected by this impact. So that the pain caused by this shock can be avoided. Furthermore, from the time when the knee is put on to the sitting posture through the sitting posture, the lower part of the kneecap P is subjected to compression and friction by the seating surface C. Friction is relieved. Further, when the user maintains the sitting posture for a long time, the lower part of the kneecap P receives great pressure from the seating surface C due to his / her body weight, but the pressure is relieved by the central portion 21 of the protective layer 2. Further, since the user feels numbness when the sitting posture is maintained for a long time, in order to remove the numbness, the user may perform an operation of shifting the center of gravity by moving the buttocks to the left and right. Further, in the manner of tea, the user may perform an action (knee row) of moving around while keeping the weight on the arm while keeping the knee on the seating surface C. In this way, the user may collapse the sitting posture and tilt his / her body forward / backward / left / right. However, even in such a case, the skin around the tibial rough surface T is the central portion 21 and the side portion of the protective layer 2. The pressure and friction received from the seating surface C are reduced. Therefore, the user can avoid the pain caused by the impact received by the lower skin of the kneecap P when using the protective sheet 1 and avoid the darkening of the lower skin of the kneecap P. Can do.

  Finally, when the user stands up from the sitting position (the state shown in FIG. 3 (d)), the subcutaneous fat F (including the skin) around the kneecap P, which is in a fully seated posture, extends from the kneecap P periphery. It hangs down vertically. At this time, since the concave portion 23 is provided on the kneecap P side in the protective layer 2, the subcutaneous fat F falls into the concave portion 23. If the concave portion 23 is not provided in the protective layer 2 and the central portion 21 has the same height as the pair of side portions 22, the drooping subcutaneous fat F will fall on the upper end of the protective layer 2 ( 3D, the protective layer 2 is peeled off or the user feels uncomfortable. However, since the concave portion 23 is provided in the protective layer 2 of the present embodiment, the subcutaneous fat F that hangs down does not fall into the concave portion 23 and get caught by the protective layer 2, so that the protective layer 2 is peeled off. And it does not make the user feel uncomfortable.

DESCRIPTION OF SYMBOLS 1 Protective sheet 2 Protective layer 2a Outer peripheral part 2b Outer edge 21 Central part 21a End part 22 Side part 23 Concave part 3 Adhesive part C Seating surface F Subcutaneous fat L Leg P Knee head S Knee head lower area S1 First skin area S2 Second skin area T tibial rough surface

Claims (4)

Wherein absorbing the impact applied to the lower portion of the skin of the kneecap of the leg abutting the seating surface, a protective sheet for inhibiting the darkening occurs in the skin of the lower part of the kneecap when the sit on seating surface,
The lower skin of the kneecap includes a lower knee region comprising a first skin region corresponding to the tibial rough surface and a second skin region corresponding to both lateral sides of the tibial rough surface;
The protective sheet is
A protective layer made of a soft resin formed in a sheet shape, which is attached to the lower kneecap region and absorbs an impact received from the seating surface when the lower kneecap region contacts the seating surface ;
An adhesive portion for attaching the protective layer to the lower kneecap region ;
The protective layer is, the when the kneecap affixed to the lower region, is formed on the knee cap sized to cover the lower area of the protective sheet. The protective layer has a central portion that covers the first skin region, and a pair of side portions that extend from the central portion and cover the second skin region,
When the protective layer is attached to the lower kneecap region,
The pair of side portions are formed so as to extend beyond an end portion on the patella side of the center portion, and at the end portion on the patella side, the center portion side is on an outer edge of the center portion and the pair of side portions. The protective sheet according to claim 1, wherein a concave concave portion is formed. 3. The protective sheet according to claim 1, wherein the protective sheet is formed in a tapered shape so as to become thinner toward an outer edge of the protective layer at an outer peripheral portion of the protective layer. The adhesive portion is attached to the surface of the protective layer opposite to the surface in contact with the skin so as to protrude outward from the outer edge of the protective layer, and the portion protruding outward from the outer edge of the protective layer The protective sheet according to claim 1, wherein the protective sheet is configured to be attached to the skin.

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