JPS60142801A - Foot fixing anti-slip body of footwear - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention prevents the foot from sliding forward on the inner sole of the footwear while walking and putting pressure on the fingertips. This invention relates to anti-slip footwear for footwear that also has the function of adjusting the size.

BACKGROUND ART Hitherto, anti-slip foot fixing devices for this type of footwear have been known and used, which consist of protrusions that fit into recesses on the underside of the toes. However, with this conventional one-slip device, the foot easily climbs over the protrusion and moves forward while walking, and a sufficient anti-slip effect cannot be obtained.

The reason for this is thought to be as follows. The sole of the foot has the shape shown in FIG. 1, and concave portions 12 are arranged in an arc shape on the lower surface of the 100 toes of the foot. Further, the depth of the recess 12 is deepest at the center and shallowest at the first finger and the fifth finger. For this reason, the conventional protruding part extends across the width of the foot so that the planar shape is arcuate in accordance with the recessed part 12, and both ends are located at the rear and the height is reduced. When walking, the foot 10 applies a load to the heel 14, and then the small area 16 centered on the root joints of the third to fifth toes (metatarophalangeal joints) and the small area 16 centered on the root joint of the first toe. The load is transferred to the region 18, and the heel 14 is raised and the heel 14 is kicked against the ground by rolling forward while these small regions 16 and 18 touch the ground.At the time of kicking off, the small region 16
．． The ground contact area of 18 expands due to the large load, and the four parts 12
The planar shape of is deformed to become nearly a straight line, and the first and fifth fingers and their finger surfaces also move forward so as to roll. Therefore, at this time, the protrusion can be overcome very easily on the lower surfaces of the first and fifth fingers, and once it is overcome here, it smoothly spreads to the center and is overcome as a whole.

After understanding the process by which such a conventional protrusion is overcome, the inventor of the present invention further studied the movement of the sole surface of the foot in detail, and found that the l7iii12
It was noticed that 0 does not roll forward when kicking off, but simply slides forward along with the rolling motion of small areas 16, 18, etc. Therefore, when a protrusion was provided only at the front end of the root joint 20 of the second to fourth fingers to prevent this sliding, it was discovered that the foot could be held in place extremely well without being climbed over, and the present invention was developed based on this finding. I arrived at the eggplant.

That is, the present invention provides footwear comprising a protrusion that fits into the four parts of the toes of some or all of the other toes, excluding the first and fifth toes, and comes into contact with the front end of the base joint of the toe. Anti-slip for fixing feet.

Hereinafter, the present invention will be specifically explained with reference to illustrative examples.

Reference numeral 22 denotes a non-slip material, which is used by being bonded to the lower surface of the insole 26 of the shoe 24, on the midsole surface.

The entire anti-slip member 22 is integrally molded from a soft material such as urethane foam, and has a shape in which a protrusion 32 is provided at the front of a thin plate 30. The protrusion 32 has an arcuate planar shape,
When attached to the shoe 24, it fits into the recess 12 on the toe surface of the second to fourth toes of the foot 10, and comes into contact with the front end 20 of the root joint of the toe on the rear surface of this recess 12.

Note that this protruding portion 32 is formed so as not to come into contact with the upper surface and front surface of the recessed portion 12 so as not to cause pain or discomfort while walking. The protruding portion 32σ) The rear surface 34 is a gently curved surface along the sole surface of the foot, and the entire surface uniformly contacts the foot 10.

Since this anti-slip 22 has the above structure, when it is attached to the shoe U and used, the front ends 20 of the base joints of the second to fourth fingers fit into the arc-shaped protrusion 32 and come into contact with the rear surface 34. Since this protrusion 32 is missing the lower surface portions of the first and fifth fingers, the first protrusion 32 is
The foot does not go over the protrusion from the finger or the fifth toe, but simply comes into contact with the front end of the root joint of the finger that is about to slide forward, and the forward movement of the foot can be reliably stopped. In addition, in this embodiment, the rear surface 34 of the protrusion 32 is a curved surface that follows the sole surface of the foot, so that when force is applied, the force is widely dispersed, and the force that may occur when a protrusion with a simple chevron-shaped cross section is used is avoided. This prevents the feet from concentrating on one part, deforming the protrusions or the feet, and causing the feet to climb over the protrusions, thereby further securing the feet to the Buddha.

In this embodiment, the protrusions 32 are located on the lower surfaces of the second to fourth fingers, but not on all three fingers.
Or, even if there are only two on the bottom surface, the foot can be sufficiently locked and it can be used. Further, the rear surface 34 of the protrusion 32 may not be a curved surface along the sole surface of the foot, but may be simply a flat sloped surface. Furthermore, although the anti-slip 22 in this embodiment is provided at the bottom of the insole of the shoe,
It is possible to construct the insole in any other manner, for example, by forming a protrusion or the like on the insole itself.

As mentioned above, the anti-slip device of the present invention has no protrusions on the lower surfaces of the first and fifth fingers, so the foot does not climb over the protrusions, and the forward movement of the foot is reliably stopped. Can be done. Therefore, it can be used on all four types of kimono, such as sandals and shoes, to provide a comfortable feeling for the toes of the feet.In particular, when used on shoes, it can be used on all four types of kimono, such as sandals and shoes. Because it prevents this, you can also get the effect of adjusting the size of larger shoes to fit your feet. Furthermore, since the length of the protrusion in the anti-slip of the present invention is short, there is less influence from individual differences in foot shape, whereas conventional anti-slips that use protrusions that span the entire width of the foot can fit all people's feet. While it is necessary to prepare at least several types, it is possible to suit almost everyone by preparing only one type, which is extremely convenient in practice.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the sole of the foot, FIG. 2 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a side sectional view showing the same state of use.
FIG. 3 is a plan view showing the state of use. 10... Foot, 12-- Concavity on the underside of the finger, 20
......Front end of root joint of 2nd to 4th fingers, 22
・・・・・・Non-slip, 32 ・・・Protrusion,
34... Rear surface of the protrusion. Original Patent Applicant 1) Yasu Hiroshi Figure 1 8 6 Procedural Amendment (Method) April 76, 1980 Kazuo Wakasugi, Commissioner of the Patent Office 1, Indication of Case 1982 Patent Application No. 247798 2, Invention Name: Anti-slip 3 for fixing feet of footwear.Relationship with the amended case: Patent applicant 1 agent address: 6 Chikomori Building, 1 Kanda Izumi-cho, Chiyoda-ku, Tokyo
Number of inventions increased by amendment 7. Delete "This is a plan view" in line 5 of page 7 of the specification subject to amendment, and replace it with "Front sectional view, Figure 4 is a plan view showing the same state of use." .” is added. that's all

Claims (1)

[Claims] 1. Consisting of a protrusion that fits into the four parts of the phalanges of some or all of the other toes, excluding the first and fifth toes, and comes into contact with the front end of the finger base joint. Anti-slip for fixing footwear on footwear. 2. A non-slip foot fixing device for footwear as set forth in claim 1, wherein the rear surface of the protruding portion is a curved surface that follows the sole surface of the foot.