JP6467141B2 - Insole with rear foot slope area and multilayer insole with rear foot slope area - Google Patents

Description

  The present invention relates to an insole with a rear foot slope region in which a foot skeleton is trimmed and a load is not applied to a knee joint.

  In flat feet, the scaphoid bones fall and the medial longitudinal arch is low or missing, the ribs are varus and the entire foot falls.

  Further, the weight load increases on the inner arch, and the load concentrates on the first MP joint. At the same time, the lateral arch also collapses.

  In addition, the wedge boat joint and the Lisfranc joint (first metatarsal bone) are turned inward to become an open leg, but since the shoe is worn, the first MP joint is pushed by the shoe and is turned outward. For this reason, the mother's heel is internally rotated by the relationship between the attachment site of the mother's flexor muscle group and the travel of the tendon. This is called hallux valgus, and the merger rate with hallux valgus is high.

  On the other hand, the O leg is a state in which both knee joints are varus. For this reason, when an excessive load is applied to the inside of the knee joint, there is a possibility of progressing to knee osteoarthritis (knee pain) or the like.

  Furthermore, when it becomes an O-leg, every time it walks, the weight is applied to the outside of the sole and rolling occurs. In particular, it is said that when it is older, it can cause falls.

  For example, there is an insole for footwear of Patent Document 1 as a means for preventing the above-described flat feet and O-legs.

  In order to eliminate the flat foot, the insole for the footwear of Patent Document 1 is located from the vicinity of the first metatarsal head to the rear of the distance projection of the rib, centering on the scaphoid bone constituting the apex of the inner longitudinal arch. This is corrected or prevented by forming a bulge that supports it. Moreover, in order to prevent collapse of the skeleton of another part, the convex shape which arranges an outer side vertical arch is given.

  In addition, the insole for footwear of Patent Document 1 has an outer peripheral edge part in which the outer peripheral part of the rib is raised upward in order to correct the rear foot part from the middle foot part in order to eliminate the O leg. Is forming. For example, the inside of the rib has a high inclination of about 3 to 6 mm on the outside. Thereby, the knee joint can be guided in the valgus direction.

Japanese Patent No. 4163237

  However, as the aging progresses, the decline of the legs further progresses, and there is a tendency that the O-legs become knee pains.

  In addition, hallux valgus and flat feet tend to cause knee pain and complications.

  The present invention has been made in view of the above problems, and an object thereof is to obtain an insole corresponding to hallux valgus and flat feet by preventing knee pain even when the O-leg is advanced.

The insole with a hind leg inclined area according to the present invention is provided with an insole arch corresponding area (250), which is a convex part for adjusting the inner vertical arch (83), on the front surface side in contact with the back surface of the foot. An insole with a rear foot slope region in which a corner cup (240) raised from the back bottom surface that contacts these shoe soles is formed from the foot corresponding region (230) to the midfoot corresponding region (220). There,
The rear end of the middle foot portion corresponding region (220) of the corner cup portion (240 ') on the outer side of the foot of the lower edge (E) which is the boundary between the back surface and the back bottom surface of the corner cup (240) a straight line connecting the vicinity of a position and (221), of the back bottom surface, the position of the corner cup portion (240'') of the lower edge as the inboard leg of the heel portion (E) and up (231) ( From La)
The straight outer corner cup portion of the foot opposite the (La) inclined region (290) toward the range (E') of the lower edge (E) of the (240 ') is subjected,
The inclined region (290) is
The gist is that the thickness is gradually increased from the straight line (La) toward the range (E ′) .
The insole with a rear foot slope region of the multilayer of the present invention includes a front fabric (280) corresponding to the planar shape of the back surface of the foot, and a urethane insole body (270) which is a lower layer of the front fabric (280). And a lower insole (260) made of urethane which is a lower side of the insole (270) , and an insole with a multi-layer rear leg inclined region obtained by pressure molding,
Back surface of the lower insole (260),
The middle foot corresponding region (220) of the corner cup portion (240 ') on the outer side of the foot at the lower edge (E), which is the boundary between the back surface of the corner cup (240) and the bottom surface contacting the shoe sole. the vicinity of the rear end a position and (221), of the back bottom surface, the position of the lower edge of the inboard leg of the corner cup portion of the heel portion (240'') (E) and up (231) From the connecting straight line (La)
The straight outer corner cup portion of the foot opposite the (La) inclined region (290) toward the range (E') of the lower edge (E) of the (240 ') is subjected,
The inclined region (290) is
The gist is that the thickness is gradually increased from the straight line (La) toward the range (E ′).

  As described above, according to the present invention, the slope region (290) that gradually increases toward the corner cup portion (240) on the outer side of the foot of the rear foot corresponding region 230 is provided. ) Will tilt the foot axis inward. For this reason, even if it is O leg, since a leg becomes straight, a burden is not applied to a knee joint, and it leads to prevention of hallux valgus and a flat leg.

  In addition, for example, when an elderly person with reduced muscle strength walks in his / her shoes, he / she can walk with his / her legs extending straight, so that he / she can be prevented from falling.

It is a perspective view of the insole of this Embodiment. It is a top view-side view of insole 200 with a hind leg part inclination area of this embodiment. It is a reverse view of the insole 200 with a hind leg inclination area | region. It is a front view (I arrow) at the time of seeing the insole 200 with a hind leg part inclination area | region of this Embodiment in FIG. 2 from the toe side. It is a rear view (II arrow) at the time of seeing insole 200 with a hind leg part inclination area of this embodiment from the back side. It is sectional drawing of the insole 200 with a hind leg inclination area | region of FIG. It is explanatory drawing when it sees from the heel side back at the time of putting a leg | foot on the insole 200 with a hind leg part inclination area | region of this Embodiment. It is explanatory drawing of the effect of the insole 200 with a hind leg part inclination area | region of this Embodiment. It is a top view-side view of insole 200 with a hind leg inclination area of other embodiments.

  FIG. 1 is a perspective view of an insole according to the present embodiment. FIG. 1 shows the foot skeleton corresponding to the insole. FIG. 1A shows the skeleton of the foot, and FIG. 1B shows the insole of the present embodiment.

  The name of the foot before the insole of the present embodiment will be described with reference to FIG.

  As shown in FIG. 1A, the foot is composed of a front foot portion 20, a middle foot portion 22, and a rear foot portion 23.

  In the embodiment, the skeleton of the foot will be described using names used in the manufacturing industry for prosthetic orthoses and the like without using anatomical names.

  As shown in FIG. 1, the forefoot 20 includes a first distal phalanx 27, a second distal phalanx 28, a third distal phalanx 29, a fourth distal phalanx 30, a fifth distal phalanx 31, and a second middle phalanx. The phalanx 35, the third middle phalanx 36, the fourth middle phalanx 37, the fifth middle phalanx 38, the first base phalanx 41, the second base phalanx 42, and the third base phalanx 43, a fourth proximal phalanx 44, and a fifth proximal phalange 45.

  The metatarsal portion 22 includes a first metatarsal bone 51, a second metatarsal bone 52, a third metatarsal bone 53, a fourth metatarsal bone 54, a fifth metatarsal bone 55, and a first wedge bone. 61, a second wedge-shaped bone 62, a third wedge-shaped bone 63, a cubic bone 71, and a scaphoid bone 73. The front surface side of the foot of the middle foot portion 22 is the upper portion 25 of the foot.

  The above-mentioned connection between the forefoot portion 20 and the middle foot portion 22 is referred to as a stepping portion 26. As shown in FIG. 1, the stepping portion 26 includes a first basic phalanx 41, a second basic phalange 42, a third basic phalanx 43, a fourth basic phalanx 44, and a fifth basic phalange 45. It is a range composed of the vicinity of the bone bottom and the vicinity of the heads of the first metatarsal bone 51, the second metatarsal bone 52, the third metatarsal bone 53, the fourth metatarsal bone 54, and the fifth metatarsal bone 55. .

  As shown in FIG. 1, the hind foot portion 23 is a range composed of a talus 75 and a rib 77.

  And it is important to keep firmly the 3 arch 88 of the foot | leg which consists of the horizontal arch 81 shown in FIG. 1, the inner side vertical arch 83, and the outer side vertical arch 86 shown in FIG.

  The lateral arch 81 is a rising line connecting the first metatarsal bone 51, the second metatarsal bone 52, the third metatarsal bone 53, the fourth metatarsal bone 54, and the fifth metatarsal bone 55.

  The medial longitudinal arch 83 is a raised line connecting the first metatarsal bone 51, the first wedge bone 61, the scaphoid bone 73, the talus 75, and the rib 77.

  The outer longitudinal arch 86 is a raised line connecting the fifth metatarsal bone 55, the cubic bone 71, and the rib 77.

  An insole 200 with a rear foot portion inclined region of the present embodiment will be described with reference to FIG. The following embodiment is an example for embodying the technical idea of the present invention, and the technical idea of the present invention is not limited to the following structure and arrangement.

  The technical idea of the present invention can be variously modified within the technical scope described in the claims. It should be noted that the drawings are schematic.

  As shown in FIG. 1B, in the insole 200 with a rear foot portion inclined region of the present embodiment, a range up to a tip 201 a including a region corresponding to the front foot portion 20 is referred to as a front side corresponding region 210. An area corresponding to the midfoot part 22 is referred to as a midfoot part corresponding area 220. Further, a region corresponding to the rear foot portion 23 is referred to as a rear foot portion corresponding region 230. The rear end of the rear foot corresponding region 230 is referred to as a rear foot rear end 201b.

  In addition, as shown in FIG. 1B, the insole 200 with the rear foot portion inclined region of the present embodiment is formed with a corner cup portion 240 around the rear foot portion corresponding region 230 to form the rear foot portion 23. It is supposed to wrap around. An area corresponding to an arch part described later is referred to as an insole arch corresponding area 250. The insole arch corresponding region 250 is raised to maintain the three arches 88.

  As shown in FIG. 1B, the insole 200 with the rear foot part inclined region is a multilayer in which a urethane insole body 270 is stacked on the lower insole 260 and a surface fabric 280 is stacked on the insole body 270. It is structured.

  The lower insole 260 described above is made of urethane, and an inclined region 290 is formed on the back side of the rear foot corresponding region 230 on the outer side of the foot.

  The inclined region 290 on the back side of the lower insole 260 is from a position 221 on the inner side surface of the foot, which is the rear end of the middle foot corresponding region 220, to a position 231 from the inner side of the foot, which is the rear end of the rear foot corresponding region 230. An inclined region 290 is provided in a range from the outer surface of the corner cup portion 240 of the hind foot corresponding region 230 facing the straight line La connecting the two to the outer surface of the foot. The inclined region 290 has a substantially triangular shape when viewed from the back side.

  FIG. 2 is a plan-side view of the insole 200 with the rear foot slope region of the present embodiment. FIG. 2 shows a 23 cm type insole.

  Fig.2 (a) shows the top view of the insole 200 with a back leg inclination area | region. In this plan view, an inclined region 290 provided on the back side is indicated by a point hatch. FIG.2 (b) shows the side view at the time of seeing from the outer side of the leg | foot of the insole 200 with a back leg inclination area | region. FIG. 2 (c) shows a side view of the insole 200 with the rear foot portion inclined region as viewed from the inside of the foot.

  Further, the side surface of the lower insole 260 when viewed from the outside of the foot of the insole 200 with the rear leg inclined region is referred to as a lower insole outer surface, and is viewed from the inner side of the foot of the insole 200 with the rear foot inclined region. A side surface of the lower insole 260 is referred to as a lower insole inner surface.

  The insole 200 with the rear foot portion inclined region of the present embodiment shown in FIG. 2 is approximately on a straight line Lf from the rear foot rear end 201b of the lower insole outer surface to the front end 201a as shown in FIG. 2 (b). The height of the intersection 260b where the straight line Lg perpendicular to the position Mi of 25 mm (24 mm to 26 mm: preferably 25 mm) intersects the outer side surface of the lower insole on the corner cup portion 240 side is the lower side facing this intersection 260b It is about 19 mm (18 mm to 20 mm: preferably 19 mm) from the bottom surface of the insole outer surface.

  Further, as shown in FIG. 2C, the height of the intersection 260c where the straight line Lg intersects the inner surface of the lower insole on the corner cup portion 240 side is about the bottom surface of the outer surface of the lower insole facing the intersection 260c. 14 mm (13 mm to 15 mm: preferably 14 mm).

  In the case of the 23 cm type, as shown in FIG. 2A, the position 221 of the inner surface of the foot of the inclined region 290 is about 74 mm (73 mm to 75 mm: preferably 74 mm) from the rear foot rear end 201b. positioned.

  Further, as shown in FIG. 2A, the position 231 from the inner side of the foot at the rear end of the rear foot corresponding region 230 is the inner side of the foot with respect to the position 221 of the inner surface of the foot in the inclined region 290. At a position of about 50 mm (49 mm to 51 mm: preferably 50 mm).

  Further, as shown in FIG. 2B, the inclined region 290 protrudes about 5 mm (4 mm to 6 mm: preferably 5 mm) below at the maximum when viewed from the inner side surface of the lower insole.

  That is, in the rear foot corresponding region 230, the outer side surface of the foot is raised by 25% to 35% (preferably 30%) with respect to the inner side surface of the foot facing the outer side surface.

  FIG. 3 is a back view of the insole 200 with the hind leg inclined region. In FIG. 3, the skeleton of the sole is shown and described.

  As shown in FIG. 3, the distal end line LB of the lower insole 260 passes through the first metatarsal bone low 51b from the position 261 on the inner side of the foot facing the vicinity of the center of the first metatarsal 51, and the second It passes through the middle of the metatarsal bone 52 and the third metatarsal 53, passes through the fourth metatarsal bone base 54b, passes through the side of the fifth metatarsal bone base 55b on the inner side of the foot, and is cubic. It passes through the corner of the bone 71 and forms a tip line LB connecting the position 268 on the outer side of the foot facing the fifth metatarsal bone bottom 55b. For this reason, the fifth metatarsal 55 does not become painful with walking.

  Further, as shown in FIG. 3, the position 221 on the outside of the foot in the inclined region 290 is located on the outside of the foot facing the vicinity of the head 77 a of the rib 77. Further, the position 231 from the inside of the foot at the rear end of the rear foot corresponding region 230 is located in the vicinity of the corner 77 b that is the inside of the foot of the rib 77.

  FIG. 4 is a front view (I arrow) when the insole 200 with the hind leg inclined region in FIG. 2 is viewed from the toe side. FIG. 5 is a rear view (II arrow) when the insole 200 with the rear foot slope region of the present embodiment is viewed from the rear side.

  As shown in FIG. 4, when the insole 200 with the rear foot slope region of the present embodiment is viewed from the toe side, the slope region 290 provided in the rear foot corresponding region 230 is visible. And this inclination area | region 290 has the thickness of the outer side of a leg | foot, and is thinning linearly toward the inner side of a leg | foot.

  In addition, as shown in FIG. 5, when the insole 200 with the rear leg slope region of the present embodiment is viewed from the rear side, the slope region 290 is higher on the outer side of the foot and becomes thinner toward the inner side. Yes.

  Specifically, the inclined region 290 has a height of about 19 mm at the outer end of the foot and a height of about 14 mm at the inner end.

  FIG. 6 is a cross-sectional view of the insole 200 with the rear leg slope region in FIG. 6A shows an AA section, FIG. 6B shows a BB section, and FIG. 6C shows a CC section.

  As shown in FIG. 6C, the CC cross section has a three-layer structure including a lower insole 260, an insole body 270, and a front fabric 280. And the inclination area | region 290 formed in the lower insole 260 is about 18 mm in height on the outer side of the foot, and gradually becomes thinner toward the inner side. That is, the portion on which the rear foot portion 23 is placed has a slope that is high on the outside and thins toward the inside.

  Further, as shown in FIG. 6B, in the BB cross section, the lower insole 260, the insole body 270, and the outer fabric 280 are formed in a three-layer structure, but the lower insole 260 is formed. The inclined region 290 has a height of about 10 mm on the outside of the foot. That is, the height of the outer side of the foot is thinner than the CC cross section.

  The inside of the foot is about 15 mm high. This is due to the uplift to maintain the three arches 88 in the insole arch corresponding area 250.

  Further, as shown in FIG. 6A, the lower insole 260 is eliminated in the AA cross section, and a two-layer structure including an insole body 270 and a front fabric 280 is formed.

  FIG. 7 is an explanatory view when the insole 200 with the rear foot portion inclined region of the present embodiment is viewed from the rear side of the heel when the foot is placed on the floor.

  As shown in FIG. 7, in the insole 200 with the hind leg inclined area of the present embodiment, the hind leg corresponding area 230 is provided with the inclined area 290 with the outside of the foot raised, so that the inclined area 290 is provided. If not, when the foot is placed on a general insole, the foot is inclined inward by a slight angle θ (indicated by a dotted line) with respect to the central axis hi. However, when the foot is tilted, it actually looks like a solid line because it tries to stand straight.

  For this reason, as shown in FIG. 8A, even if the muscular strength is reduced to become an O leg, the leg is normally straightened as shown in FIG. 8B. Therefore, knee pain can be prevented, falling can be prevented, and hallux valgus and flat feet can be prevented.

  In the above description, 23 cm is described as an example, but the range of the inclined region 290 differs depending on the size.

  For example, in the 25 cm type shown in FIG. 9, as shown in FIG. 9B, about 27 mm (26 mm to 28 mm: preferably on a straight line Lf from the rear foot rear end 201b of the lower insole outer side surface to the front end 201a. The height of the intersection 260b where the straight line Lg perpendicular to the position Mi of the position 27m intersects the lower insole outer surface on the corner cup portion 240 side is about 20 mm from the bottom surface of the lower insole outer surface facing the intersection 260b. (19 mm to 21 mm: preferably 20 mm).

  Further, as shown in FIG. 9C, the height of the intersection 260c where the straight line Lg intersects the inner surface of the lower insole on the corner cup portion 240 side is about the bottom of the outer surface of the lower insole facing the intersection 260c. It is 15 mm (14 mm to 16 mm: preferably 15 mm).

  In the case of the 25 cm type, as shown in FIG. 9A, the position 221 of the inner surface of the foot of the inclined region 290 is about 77 mm (76 mm to 78 mm: preferably 77 mm) from the rear end 201b of the rear foot. positioned.

  9A, the position 231 from the inner side of the foot at the rear end of the rear foot corresponding region 230 is the inner side of the foot when the position 221 on the inner side surface of the foot in the inclined region 290 is used as a reference. About 55 mm (54 mm to 55 mm: preferably 54 mm).

  Further, as shown in FIG. 9B, the inclined region 290 protrudes about 5.5 mm (4 mm to 6 mm: preferably 5.5 mm) below when viewed from the inner surface of the lower insole.

  That is, in the rear foot corresponding region 230, the outer side surface of the foot is raised by 25% to 35% (preferably 30%) with respect to the inner side surface of the foot facing the outer side surface.

  Although not shown in FIG. 9, the position 221 on the inner side of the foot of the inclined region 290 is located on the outer side of the foot facing the vicinity of the head 77 a of the rib 77, and the foot at the rear end of the rear foot corresponding region 230. The position 231 from the inner side is located in the inner corner of the foot of the rear bottom 77b of the rib 77.

  The surface fabric 280 is preferably a raised material (suede) for elderly people, but may be suede-like natural leather, artificial leather, or synthetic leather.

20 Forefoot part 22 Middle foot part 23 Rear foot part 210 Front side corresponding area 220 Region is middle foot corresponding area 230 Rear foot corresponding area 240 Corner cup part 260 Lower insole 290 Inclined area

Claims (4)

An insole arch corresponding region (250), which is a convex portion for adjusting the inner vertical arch (83), is provided on the front surface side contacting the back surface of the foot, and the rear foot corresponding region (230) to the middle foot corresponding region ( 220) , an insole with a rear foot slope region in which a corner cup (240) raised from the back bottom surface in contact with these shoe soles is formed,
The rear end of the middle foot portion corresponding region (220) of the corner cup portion (240 ') on the outer side of the foot of the lower edge (E) which is the boundary between the back surface and the back bottom surface of the corner cup (240) a straight line connecting the vicinity of a position and (221), of the back bottom surface, the position of the corner cup portion (240'') of the lower edge as the inboard leg of the heel portion (E) and up (231) ( From La)
The straight outer corner cup portion of the foot opposite the (La) inclined region (290) toward the range (E') of the lower edge (E) of the (240 ') is subjected,
The inclined region (290) is
An insole with a rear foot portion inclined region, characterized in that the thickness is gradually increased from the straight line (La) toward the range (E ') . The tip line (LB) of the insole arch middle foot corresponding region (220) is:
The first metatarsal bone (51) passes from the position (221) on the inner side of the foot facing the vicinity of the center of the first metatarsal bone (51) through the first metatarsal bone low (51b), and the second metatarsal bone (52) and the third middle Around the center of the foot bone (53)
Through the fourth metatarsal bone base (54b), except for the fifth metatarsal bone (55),
Position (268) on the outside of the foot through the corner of (71) and facing the fifth metatarsal bone base (55b)
The insole with a hind leg inclined region according to claim 1, wherein the insole is a curve connecting the two . A front fabric (280) corresponding to the planar shape of the back surface of the foot, a urethane insole body (270) as a lower layer of the front fabric (280), and a urethane bottom under the insole (270) A multi-layered insole with a rear foot portion that is pressure-molded with a side insole (260),
Back surface of the lower insole (260),
The middle foot corresponding region (220) of the corner cup portion (240 ') on the outer side of the foot at the lower edge (E), which is the boundary between the back surface of the corner cup (240) and the bottom surface contacting the shoe sole. the vicinity of the rear end a position and (221), of the back bottom surface, the position of the lower edge of the inboard leg of the corner cup portion of the heel portion (240'') (E) and up (231) From the connecting straight line (La)
The straight outer corner cup portion of the foot opposite the (La) inclined region (290) toward the range (E') of the lower edge (E) of the (240 ') is subjected,
The inclined region (290) is
A multi-layered insole with a hind leg inclined region, wherein the thickness is gradually increased from the straight line (La) toward the range (E ') . The lower insole (260)
The first metatarsal bone (51) passes from the position (221) on the inner side of the foot facing the vicinity of the center of the first metatarsal bone (51) through the first metatarsal bone low (51b), and the second metatarsal bone (52) and the third middle Around the center of the foot bone (53)
Through the fourth metatarsal bone base (54b), except for the fifth metatarsal bone (55),
Position (268) on the outside of the foot through the corner of (71) and facing the fifth metatarsal bone base (55b)
The insole with a multi-layered hind leg inclined region according to claim 3, wherein the insole is a curved line connecting the two.

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