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Midsole for reducing load applied on knee

Inactive Publication Date: 2015-10-29
BLACK YAK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a midsole with a front and rear soft portion to allow for smooth movement of the inner knee, reducing impact and load on the joint. The midsole also includes inclined surfaces at the soft and hard portions to minimize inconvenience caused by hardness differences, and an arch shank to improve impact distribution and absorption. These features improve exercise capacity and reduce pain and discomfort during exercise.

Problems solved by technology

However, in the case of hiking boots, cushioning property and wearing comfort are emphasized because hiking causes more injury factors than other sports, but recently developed hiking boots rather increases a risk of injuries and are not helpful enough to improve exercise capacity.
However, the shocking thing is that most of the foot problems are caused by the shoes.
The shoes change bone structures of the feet, and result in pain in the knee and the waist.
In particular, in the case of hiking that Korean enjoys, because hiking requires a larger amount of exercise and causes more risks of injuries than any other sports, injury prevention systems need to be sufficiently adopted to the shoes.
It can be seen from the aforementioned results that men and women all choose shoes in consideration of style and design of the shoes instead of stability of the shoes, which causes the acquired injuries to the bones of the foot.
Impact is absorbed and thrusting force is created during a process in which a person steps on the ground from the heel to the big toe in accordance with movement of the foot, but in the case of the patients with injuries to the knee, particularly, arthritic patients, movement of adduction applied to an inner knee is increased, which causes damage to inner cartilages.
However, the aforementioned Korean Patent is excellent in terms of a function of absorbing impact, but does not present a technical configuration regarding a structure for reducing impact and load concentrated on the knee joints in consideration of movement characteristics of the knee joints.

Method used

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  • Midsole for reducing load applied on knee
  • Midsole for reducing load applied on knee
  • Midsole for reducing load applied on knee

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0065]Based on the foot arch inside the arch portion of the foot, the first soft portion was disposed at the front side, the second soft portion was disposed at the rear side, and the hard portion was disposed in the remaining region except for the first and second soft portions. Further, the midsole was manufactured by joining the first and second soft portions and the hard portion.

[0066]In this case, the first and second soft portions were made of soft EVA, the hard portion was made of hard EVA, and a hardness ratio of the soft portion to the hard portion was 1:1.2.

example 2

[0067]A midsole was manufactured by the same method as in Example 1, except that the hardness ratio of the soft portion to the hard portion was 1:1.3.

example 3

[0073]A midsole was manufactured by the same method as in Example 1, except that cross sections, which are inclined at 45°, were formed at the first and second soft portions and the hard portion, and then joined together.

[0074]In this case, the inclined cross section of the hard portion was disposed over the inclined cross sections of the soft portions.

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PUM

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Abstract

The present invention relates to a midsole which reduces a load applied to a knee, and more particularly, to a midsole which reduces a load applied to a knee, in which a first soft portion and a second soft portion are disposed at a front inner side and a rear inner side so as to allow an inner knee to relatively and smoothly move, thereby reducing impact and load concentrated on an inner knee joint, and expecting improved exercise capacity.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to and the benefit of Korean Patent Application No. 10-2014-0051293 filed in the Korean Intellectual Property Office on Apr. 29, 2014, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to a midsole which reduces a load applied to a knee, and more particularly, to a midsole which reduces a load applied to a knee, in which a first soft portion and a second soft portion are disposed at a front inner side and a rear inner side so as to allow an inner knee to relatively and smoothly move, thereby reducing impact and load concentrated on an inner knee joint, and expecting improved exercise capacity.BACKGROUND ART[0003]Recently, with a rise in living standard and customer's various needs, a number of types of shoes having various designs are being manufactured, and special shoes having various functions are also being released on the market.[0004]...

Claims

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Application Information

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IPC IPC(8): A43B13/38A43B7/18A43B13/40
CPCA43B13/383A43B7/18A43B13/40A43B13/125A43B13/186A43B13/41A43B13/141A43B13/16
Inventor KANG, TAE SUNPARK, SANG JUN
Owner BLACK YAK
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