JP2008231601A - Tabi socks - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pair of Tabi socks capable of reducing numbness of the feet and pain feeling such as compression pain when kneeling. <P>SOLUTION: This pair of Tabi socks has a cushion member 30 which has cushioning characteristics and elasticity of polyurethane foam and attached to a part corresponding to a scope extending from the external sphenoid bone 55c of the tarsal bone 50 of the front of the foot to the tarsal sinus 56 through the cuboid bone 54 when wearing the Tabi socks. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a socks, and more particularly to a socks structure that can relieve numbness and joint pain in a sitting position.

  The modern daily life is becoming more westernized, and the habit of sitting straight is decreasing. Therefore, even though it is Japanese, foreigners feel the pain of sitting correctly, and the number of people who are not good at sitting is increasing. On the other hand, in recent years, practice such as tea ceremony, flower arrangement, calligraphy, dance, and martial arts accompanied by a formal seat is also popular, and there are many requests for relieving the pain of the formal seat. However, as is generally known, sitting is painful. In general, if the sitting position is more than enough, many people suffer from numbness of the legs and numbness, and in severe cases, they cannot stand up easily. However, it is a reality that breaking the foot is forced to be difficult, not to be disrespected or obstructed when performing arts and prestige. For this reason, a small seat for sitting on the seat has been devised in the past, but this is not in a formal style and is inconvenient and not aesthetically pleasing to the behavior of traditional manners.

Patent Document 1 discloses that a soft pressure pad is attached to the upper surface of a foot of a Japanese-style tabi so as to reduce pain and numbness from the weight applied to the foot. Patent Document 2 discloses that a pad with cushioning is provided on the back of the socks to reduce foot pain and numbness.
JP 2002-173803 A JP-A-10-088404

  In these conventional techniques, a cushioning material is provided on the upper side (back) of the foot, and a new thickness is interposed between the back of the foot and the floor. Therefore, with the conventional technology, it is possible to relieve the pain on the surface of the instep, but on the other hand, as the surface rises, the action as a fulcrum or power point that supports the weight on the instep of the foot is emphasized. . As a result, an adverse effect (inverse effect) such as, for example, the reverse warping pressure applied to the ankle joint may be further increased. Therefore, it is not possible to prevent structural pains in the sitting position, in particular, numbness caused by blood flow inhibition or nerve compression.

  As a result of the inventor's research, it has been found that the main cause of the occurrence of numbness is the reverse warping of the ankle joint. Further, the reverse warp of the ankle joint is a factor that causes blood flow inhibition and numbness due to nerve compression and pain of the ankle joint itself. Therefore, in order to relieve the numbness of the foot due to sitting straight, it is necessary to reduce or eliminate the reverse warping of the ankle joint, and it is necessary to determine the mounting position of the cushion material on the socks in consideration of this point. This relaxation of the reverse warp is closely related to the movement of the fulcrum that supports the weight on the foot, and this movement of the fulcrum is also the movement of the compression part. And if this fulcrum can be moved to an appropriate position, it is thought that the reverse curvature of an ankle joint part can be reduced and the numbness of the foot resulting from reverse curvature can be reduced.

  Specifically, there are three possible causes of sitting pain: leg numbness (numbness), ankle (scientific name: Chopard joint) joint pain, and foot compression pain. First, foot numbness occurs when the knee joint is bent to the minimum, the ankle joint is warped to the limit, and nerve compression and leg blood circulation are inhibited by putting the total weight on it. To do. In addition, ankle joint pain is pain in the joint itself due to the forced reverse ankle warping for a long time. In addition, when the knee joint is bent, the upper back of the foot, that is, a series of bones from the wedge-shaped bone to the tibia (facing shin) is strongly pressed against the seat plane (floor, tatami mat, etc.). This is a local skin pain. These three elements occur in combination.

  In addition, there are various scenes such as sitting on a cushion, on a carpet, on a rug, on a tatami mat, or directly between boards. One of the hardest of these situations is when a so-called high-footed skeleton sits on a hard floor such as board or concrete. In such a case, pressure is concentrated on the upper part (wedge-like bone part), resulting in strong pain. Furthermore, when sitting straight, the ankle joint (Chopard joint) connecting the shin facing the upper part of the instep is strongly warped by the height of the upper part, and the occurrence of numbness becomes significant as described above.

  In addition, even when sitting on the most comfortable cushion, the cushioning effect of the futon can relieve the pressure pain caused by the seating surface on the shin and the instep of the foot (wedge-shaped bone), but it can also prevent numbness and paralysis. The effect to reduce cannot be expected very much. The reason for this is that even when the cushion is on the cushion, the flexion of the knee joint and the reverse warping of the ankle portion are formed as in the case where the cushion is not used, so that blood flow inhibition and nerve compression still occur there.

  The present invention has been made in view of such problems. An object of the present invention is to provide a socks that can effectively reduce painful feelings such as foot numbness and pressure pain when sitting straight.

In order to achieve the above object, the tabi according to the present invention, when the socks are worn, on the part of the socks that covers the surface of the foot in the range from the outer wedge-shaped bone of the tarsal bone to the tarsal trunk through the cubic bone, A cushion member having cushioning properties and elasticity is mounted.
In addition, when the socks according to the present invention are put on the socks, the tabi covers the surface of the foot covering the range from the outer wedge-shaped bone of the tarsal bone to the external surface of the talus through the cubic bone and the tarsal trunk. A cushion member having cushioning properties and elasticity is mounted.

  ADVANTAGE OF THE INVENTION According to this invention, the socks which can reduce effectively painful feelings, such as a numbness of a leg and a compression pain when sitting upright, are provided.

  Embodiments of the present invention will be specifically described below with reference to the drawings. Note that the same reference numerals denote the same or corresponding parts throughout the drawings. FIG. 1 is a perspective view showing an ankle portion of a tabi according to an embodiment of the present invention. FIG. 2 is a perspective view showing the tabi of FIG. 1 as seen from another angle. FIG. 3 is a perspective view showing the state of the foot when the user stands in the standing posture while wearing the socks of FIG. FIG. 4 is a front view of FIG. FIG. 5 is a side view showing the state of the foot when sitting with the socks of FIG. FIG. 6 is a plan view of the foot skeleton as seen from above. FIG. 7 is a perspective view showing an outline of the leg and the skeleton of the leg as seen from the front.

  First, the foot skeleton will be described with reference to FIGS. 6 and 7. In FIG. 6, the skeleton of the foot is roughly composed of a tarsal bone 50, a metatarsal bone 60, and a phalange bone 70 from the ankle to the fingertip. The ankle-side tarsal bone 50 includes a rib 51, a rib protuberance 51a, a talus 52, a talus pulley 52a, a scaphoid bone 53, a cubic bone 54, an inner wedge bone 55a, an intermediate wedge bone 55b, an outer wedge bone 55c and a foot. The root cave 56 is configured. The rib 51, the rib protuberance 51a, the talus 52, the talus pulley 52a and the tarsal sinus 56, and the scaphoid 53 and the cubic bone 54 are connected by a Chopard joint (lateral tarsal joint) 57. Yes. The Chopard joint 57 is a main joint part constituting the ankle joint. Further, the inner wedge bone 55 a, the intermediate wedge bone 55 b, the outer wedge bone 55 c and the cubic bone 54 and the metatarsal bone 60 are connected by a Lisfranc joint (tarsal metatarsal joint) 58. In FIG. 7, the foot skeleton of FIG. 6 is connected from the tarsal bone 50 forming the ankle to the leg skeleton (tibia 80 and rib 90) via the ankle joint.

  1 to 7, the socks according to the present embodiment have a surface of the foot in a range from the outer wedge bone 55 c of the tarsal bone 50 to the tarsal trunk 56 through the cubic bone 54 when the socks 10 are worn. It is comprised so that the cushion member 30 which has buffer property and elasticity may be mounted | worn with the part of the socks 10 to cover. More preferably, when the socks 10 are worn, the socks 10 that cover the surface of the foot in the range from the outer wedge-shaped bone 55c of the tarsal bone 50 through the cubic bone 54 and the tarsal trunk 56 to the outer fruit surface 52b of the talus 52. The cushion member 30 having a cushioning property and elasticity is attached to the portion. In addition, the conventional tabi with a pad hits the instep B of the foot. A range B in FIGS. 3, 4, and 6 indicates the upper part of the foot. On the other hand, in the tabi according to the present embodiment, the cushion material 30 is attached to a portion corresponding to the ankle joint. A range A in FIGS. 3, 4 and 6 indicates an ankle joint.

  The tabi 10 according to the present embodiment reduces the numbness and pressure pain of the foot in a long-term sitting position, so that a specific range of the ankle part of the socks 10, that is, a bent part of the ankle joint in front of the person wearing it (of the Chopard joint 57). Positioned in the range corresponding to the surface of the foot from the central part) to the vicinity of the outer ankle (external surface 52b) (range extending from the outer wedge-shaped bone 55c to the vicinity of the tarsal sinus 56 through the cubic bone 54), urethane foam, etc. A cushion member 30 having a shock-absorbing property and elasticity is mounted. As long as the cushion member 30 is within the above range, the cushion member 30 may be attached to any part between the back surface and the front surface, such as the inner surface, the outer surface, or the outer surface and the lining of the tabi 10.

  FIG. 8 is a schematic side view showing a state of reverse warping of the ankle joint when sitting on a conventional socks. FIG. 9 is a schematic side view showing the state of the ankle joint when the user sits down with the socks 10 according to the present invention. Next, with reference to FIG.8 and FIG.9, the effect of the cushioning material 30 when putting on the socks by this invention and sitting upright is demonstrated concretely. S in FIG.8 and FIG.9 shows the floor surface containing a board, a tatami mat, or a cushion. First, when a conventional socks are worn and seated on the floor surface S, as shown in FIG. 8, the ankle joint part composed of the lateral tarsal joint (Chopard joint) 57 has the ground contact parts A1 and A2 at the front and back as fulcrums. By the weight W, as shown by a two-dot chain line P, a reverse warping state is formed in a direction that protrudes downward.

  In this case, the fulcrum A1 is a part of the instep and the fulcrum A2 is a part of the knee from the tibia 80 (rib 90). The weight W acts on the rib 51 portion. Therefore, in the conventional socks, the weight W acting on the portion of the rib 51 is supported by the intermediate region between the fulcrums A1 and A2 on both sides thereof, and a large bending moment acts on the ankle joint including the Chopard joint 57. It becomes a state to do. Further, due to the reverse warp, strong pressure acts between the instep bone or the ankle joint bone and the floor surface S. Such joint pain associated with the reverse warping of the ankle joint, compression pain due to direct compression between the instep and the floor, and numbness caused by nerve compression or blood flow inhibition may occur.

  In contrast, when the user sits down with the socks 10 according to the above embodiment, as shown in FIG. 9, the ankle joint portion including the conventional Chopard joint to which stress due to reverse warping is applied is supported from below by the cushion member 30. be able to. For this reason, the fulcrum A1 of the instep portion of the conventional socks can be moved to the ankle joint portion (in the vicinity of the Chopard joint 57), and the weight W acting on the portion of the rib 51 becomes a region immediately below. It will be in the state supported by fulcrum A1. For this reason, the bending moment which acts on the ankle joint portion by the weight W can be eliminated or greatly reduced, and the ankle joint portion can be supported by almost normal force only. A curve R in FIG. 9 shows a state in which the reverse warp is released from the reverse warp curve P in FIG. Thereby, the reverse warp of the ankle joint described with reference to FIG. 8 can be almost eliminated, a gap is secured between the ankle joint and the floor surface S, and the portion is supported by the cushion member 30. As described above, in the present embodiment, the ankle joint portion that secures a clearance and eliminates the reverse warp is supported by the cushion member 30, so that the joint pain of the ankle joint and the numbness of the foot when the person sits down with the socks on are seated. It can be effectively eliminated or reduced. At the same time, the effect of relieving pressure pain equivalent to that of a cushion can be obtained.

  As described above, when sitting on a conventional socks, the ankle joint is warped or the ankle is directly compressed, causing ankle joint pain, nerve and muscle compression pain, blood flow inhibition, and the like. In this embodiment, in order to alleviate these three major factors, there is a certain effect even with a cushion member having a small thickness. In other words, the cushion member having a thickness of 5 mm to 40 mm as described above, instead of a large thickness as in the cushion, is made to have an appropriate width and shape and mounted in an appropriate range ((FIGS. 1 to 5)). The above-mentioned great relaxation effect can be realized.The difference between the cushion and the cushion is the part of the socks covering the surface of the foot corresponding to the range from the outer wedge bone 55c to the tarsal sinus 56 through the cubic bone 54 More preferably, the cushion member 30 is attached to a portion covering the surface of the foot corresponding to the range from the outer wedge bone 55c through the cubic bone 54 and the tarsal trunk 56 to the outer cavernous surface 52b of the talus 52.

  According to such a configuration, by supporting the above-described ankle joint portion to which the reverse warp stress is applied from below and using this as a fulcrum A1 for receiving the weight, the reverse warp stress generated in the ankle joint portion is released. Become. Thereby, a space can be secured at the ankle joint. Conventionally, since the fulcrum A1 on one side is in the vicinity of the upper part of the foot, a reverse warping force acts on the ankle joint including the Chopard joint 57 in the middle of the knee that is the other fulcrum A2. It will be.

  That is, in the conventional socks, the fulcrum that supports the seat weight is in the instep portion. However, according to the present embodiment, the cushion member 30 is disposed at the above-described position. That is, it can be moved to an appropriate position at or near the ankle joint. Thereby, the reverse curvature of an ankle joint part can be reduced, and the pain (especially numbness of a leg) at the time of sitting can be relieved effectively. The appropriate position in this case is a position that is off the top of the instep of the foot, and corresponds to a position in the vicinity of the inner bend of the ankle. Moreover, this position is a position which does not protrude outside even if the cushion member 30 is mounted. For this reason, the tabi according to the present embodiment is 10, which is not inferior to the conventional normal socks.

  Such an effect can alleviate nerve compression and blood flow inhibition at the ankle joint portion, and at the same time, the cushioning effect of the cushion member 30 can also provide a relief effect of compression pain similar to a cushion. That is, the cushioning member 30 such as urethane foam is positioned and mounted in the above range, so that the above relaxation effect can be realized with a minimum size. In addition, since the cushion material 30 having a limited thickness is joined and attached to a specific region of the socks 10, it can be used in a form that is almost the same as an ordinary socks.

  That is, according to the socks 10 according to the above-described embodiment, it is possible to obtain an action effect of alleviating the reverse warping of the ankle joint portion (Chopard joint or lateral tarsal joint) 57 itself. Thereby, the effect of alleviating the reverse warp pain of the ankle joint, the effect of relaxing the nerve compression and blood flow inhibition of the ankle joint part, and the compression of the wedge-shaped bones 55a, 55b, 55c received by the instep and the floor surface Three actions and effects are obtained that relieve pain. The effects of relieving the three major causes of sitting pain can greatly reduce the sitting pain, but many times longer than usual. Sitting is possible.

  According to the inventor's research, the thickness of the cushion member 30 such as urethane foam is in the range of 5 mm to 40 mm when there is no sitting and is in the range of 2 mm to 30 mm when the seat is loaded. By adopting the configuration as described above, it was possible to efficiently reduce the sitting pain by giving an appropriate margin to the ankle joint. Further, the thickness of the cushion member 30 is selected to be in the range of 10 mm to 20 mm when no load is applied while not sitting, and to be in the range of 4 mm to 15 mm when the load is applied while sitting. It was possible to significantly reduce the sitting pain.

In addition, the elastic compression rate of the cushion member 30 is selected so that the thickness when a load of 500 g per 1 cm ² is applied is 20% to 80%, thereby giving an appropriate margin to the ankle joint. It was possible to reduce pain efficiently. Furthermore, the elastic compression rate of the cushion member 30 is selected so that the thickness when a load of 500 g per 1 cm ² is applied is 40% to 60%, thereby greatly effectively reducing the sitting pain. I was able to.

  In general, the socks are often worn in each scene of the conventional sitting, and the upper side of the opening of the socks covers a protection site that is effective in preventing the numbness specified in this embodiment. Therefore, when implementing the tabi according to the present invention, the cushion member 30 is attached to this portion. The same effect can be obtained even if it is attached to a sock. As a result, the appearance when wearing a socks can be almost the same as that of a normal socks, and the behavior is not affected by the wearing. Therefore, it can be used in any scene without worrying about rudeness or disgrace.

  The cushion member 30 such as urethane foam is not necessarily integrated with the tabi (adhering, bonding, sewing, etc.), and may be detachably mounted. For example, velcro tape is applied to the appropriate position on the inner surface of the tabi (the back of the foot slightly inside the upper end of the opening) and used in combination with a cushion member that can be attached to the velcro tape. May be. In this case, if the magic tape is fixed to an appropriate position, the cushion member 30 can be easily mounted at an accurate position. Moreover, since it becomes detachable, the cushion member 30 can be removed and it can also be used as a normal socks. Also, when the socks are washed, the cushion member 30 can be removed and washed as usual.

  Further, the socks for mounting the cushion member according to the present invention are not limited to the configuration in which the cushion member is fixedly or detachably attached to the socks, and only the cushion member 30 is attached to the appropriate position of the bare foot by sticking or the like, You may use also the aspect which wears a tabi or a sock on it. Further, in the case of a split-finger socks, etc., the cushion member 30 may be attached (attached) at an appropriate position, and this may be worn as underwear for socks. That is, the socks according to the present invention are not limited to the configuration in which the cushion member is directly attached to the socks, but the ankle supporter with the cushion member, the finger split socks with the cushion member, the back surface adhesive type cushion member, or the string tie It can be implemented in a manner such as a type of cushion member.

  By applying the cushion member according to the present embodiment to the socks, the above-described effect of alleviating nerve compression and blood flow inhibition at the ankle joint portion, and the reverse warping pain of the ankle joint (Chopard joint 57) itself are alleviated. The effect and the effect of relieving the pressure pain between the cuneiform bones 55a, 55b, 55c received by the instep and the floor surface can be achieved. Since the cushion member 30 has such an effect, the cushion member 30 is formed of a material having a cushioning property and elasticity such as foamed urethane, a member formed in the form of a small cotton quilt, or a specification of an air pillow. It can be configured in the form of, for example, one that is made compact and can be used in a manner that allows it to expand and contract according to the situation.

  According to the embodiment described above, when the socks 10 are worn, the range from the bent portion of the ankle front surface of the ankle to the outer ankle, that is, the range from the outer wedge-shaped bone 55c to the tarsal sinus 56 through the cubic bone 54. In addition, since the cushion member 30 having cushioning and elasticity is attached to the portion covering the surface of the foot corresponding to the range extending from the tarsal trunk 56 to the outer surface 52b of the talus 52, Relieve nerve compression and blood flow obstruction at the ankle joint, relieve back warping of the ankle joint (Chopard joint or lateral tarsal joint 57), or compression pain between the cuneiform bone and the floor surface that the instep of the foot receives Thus, there is provided a socks that can relieve pain and feel painful feelings such as numbness and pressure pain when sitting straight.

It is a perspective view which opens and shows the ankle part of the tabi which concerns on one Embodiment of this invention. It is a perspective view which shows the tabi of FIG. 1 seeing from another angle. It is a perspective view which shows the state of a leg | foot when putting on the tabi of FIG. 1 and taking the standing posture. FIG. 4 is a front view of FIG. 3. It is a side view which shows the state of a leg | foot when putting on the socks of FIG. 1 and sitting down. It is the top view which looked at the skeleton of the leg from the top. It is a perspective view which shows the outline of a leg and the skeleton of a leg from the front. It is a typical side view which shows the state of the reverse curvature of the ankle joint when putting on a conventional tabi and sitting upright. It is a typical side view which shows the state of the ankle joint when putting on the socks by this invention and sitting down.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Tabi 30 Cushion member 50 Tarsal bone 51 Rib 52 Talar 52b Outer surface 54 Cubic bone 55a Inner wedge bone 55b Intermediate wedge bone 55c Outer wedge bone 56 Tarsal sinus 57 Ankle joint (Chopard joint, lateral tarsal joint)
58 Lisfranc joint (tarsal metatarsal joint)
60 metatarsal bone 70 phalanx 80 tibia (far shin)
90 ribs

Claims (7)

  When the socks are worn, a cushioning member having cushioning and elasticity is attached to the part of the socks that covers the surface of the foot ranging from the outer cuneiform bone of the tarsal bone to the tarsal trunk through the cubic bone. Tabi characterized by that.   A cushion with cushioning and elasticity on the part of the sock that covers the surface of the foot ranging from the outer cuneiform bone of the tarsal bone to the external surface of the talus through the cubic bone and tarsal trunk when the socks are worn A tabi, wherein a member is mounted.   The thickness of the cushion member is in a range of 5 mm to 40 mm when no load is applied without sitting, and a thickness of 2 mm to 30 mm when sitting and applying weight. Tabi socks.   The thickness of the cushion member is more preferably in a range of 10 mm to 20 mm when no load is applied while not sitting, and in a range of 4 mm to 15 mm when a load is applied while sitting. Tabi as described in. The socks according to any one of claims 1 to 4, wherein the elastic member has an elastic compressibility of 20% to 80% when a load of 500 g per 1 cm ² is applied. The socks according to claim 5, wherein the cushion member has an elastic compressibility of 40% to 60% in thickness when a load of 500 g per 1 cm ² is applied.   The socks according to any one of claims 1 to 6, wherein the cushion member is urethane foam.

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