TWM628092U - foot cushion - Google Patents

Abstract

A foot cushion, comprising a front plantar area, a midfoot area and a heel area, the upper part of the foot cushion is a soft elastic body, the midfoot area and the bottom surface of the soft elastic body at the heel area are combined with a hard elastic body , and the soft elastic body and the hard elastic body at the position of the midfoot area are formed to be arched upward; the soft elastic body in the heel area is formed as a concave area, and the opposite sides of the concave area respectively form inner arch concave The arc surface and the concave arc surface of the outer arch; the hard elastic body at the heel area is provided with a through hole, and part of the material of the soft elastic body is filled into the through hole to provide pedal buffering effect, the The outer sides of the opposite two sides of the hard elastic body respectively form a convex arc surface of an inner arch and a convex arc surface of the outer arch; the creation is suitable for being arranged in a shoe, and provides a more ergonomic and comfortable wearing.

Description

foot cushion

The present invention relates to a foot cushion for inserting inside a shoe, especially a foot cushion that has shock absorption, impact resistance, is more ergonomic and more comfortable when wearing, and can maintain a normal gait.

When a person walks, one foot will bear 0.8 to 1.2 times the body weight, and generate corresponding reaction force, especially the reaction force directly impacts the sole, knee, and spine, so it is best to use the insole in the shoe to absorb the impact, otherwise In the long run, it will cause many foot lesions.

The traditional flat insole made of leather only provides the function of padding in the shoe, and is not effective in absorbing shock and impact. The colloidal insole disclosed in US 7,140,126 is a choice that can improve the problem of traditional flat insole. It can be placed in the shoe at will, and the elasticity and softness of the colloidal material (such as silicone) itself can be used to absorb the shock and vibration generated when the body moves. Impact force, so as to achieve the effect of protecting the foot and obtain comfort. The reason why colloidal insoles are popular is that they can be made thin enough to be placed in shoes; for more comfortable wearing, a layer of moisture-absorbing and breathable cloth is usually combined on the upper surface of the colloidal insole.

However, due to the damping properties of the colloidal insole, it takes more effort to walk and the muscles are easily fatigued; in addition, the colloidal insole is too soft, resulting in poor elasticity and low impact resistance.

Furthermore, the inner side of the midfoot area of the sole of the human body is a concave and curved arch portion. When the sole walks and lands, there will be a height difference between the arch portion and the insole, and the conventional insole fails to provide a correct view of the arch. The structure of the external support, therefore, walking is more prone to fatigue.

On the other hand, the heel portion of the conventional insole is in a flat shape, so that it cannot provide a better support effect on the inner and outer arches of the heel, and is also less comfortable when walking.

The purpose of this creation is to provide a foot cushion that is more ergonomic and has better impact resistance and elasticity, so as to be more comfortable when wearing and walking, and can generate better elastic forward propulsion.

Another object of the present invention is to provide a foot cushion that can provide elastic support to the arch and heel of the sole of the foot when the foot is walking and landed, so as to reduce the fatigue of the sole of the foot.

The technical means of the foot cushion provided by this creation is to form the entire foot cushion into a shape corresponding to the inner bottom surface of the shoe and include a front plantar area, a midfoot area and a heel area, wherein the foot cushion includes: The soft elastic body is formed to be located above the foot cushion, and a concave area is formed above the position of the heel area, and the opposite sides of the concave area are respectively formed with an inner arch concave arc surface and an outer arch concave arc surface, The radius of the concave arc surface of the inner arch is 7.5mm~9.5mm, and the radius of the concave arc surface of the outer arch is 8.5mm~10.5mm; the hard elastic body is formed to be located under the foot cushion and combined with the middle The bottom surface of the soft elastic body in the foot area and the heel area, the hard elastic body corresponding to the position of the heel area is provided with a through hole, and part of the material of the soft elastic body is filled into the through hole, and the hard elastic body in the heel area is provided with a through hole. The outer sides of the opposite sides are respectively formed with an inner arch convex arc surface and an outer arch convex arc surface, the radius of the inner arch convex arc surface is 13.5mm~16mm, and the radius of the outer arch convex arc surface is 13.5mm ~15.5mm. The foot cushion of the structure can provide the wearer with a better ergonomic experience when it is disposed inside the shoe and worn.

Preferably, the upper surface of the concave area of the soft elastic body is formed as an upwardly convex arc surface. The structure can provide a good elastic support for the heel and reduce the impact when the heel falls.

Preferably, the soft elastic body and the hard elastic body in the midfoot region are formed into an upwardly protruding arch. With this structure, elastic support can be provided to the arch of the sole of the foot, which is more comfortable when wearing and walking, so as to reduce the fatigue of the sole of the foot when walking, and can generate a better elastic forward propulsion force.

Preferably, the upper surface of the soft elastic body can be combined with a cloth surface as the upper surface layer; or, the upper surface of the soft elastic body can be combined with a plastic material with patterns on the surface as the upper surface layer.

The embodiments of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the invention accordingly after studying the description.

Since the cushioning pad for left foot and the cushioning pad for right foot are symmetrically designed, the following embodiments only take the cushioning pad for right foot as an example; For use with women's foot cushions. Among them, Figure 1 shows the top structure of the foot cushion of the present invention; Figure 2 and Figure 3 show the side view of the foot cushion and the side cross-sectional structure along the III-III direction; Figures 4 to 7 are respectively. 1 along the direction of IV-IV, V-V, VI-VI, VII-VII plane cross-sectional view; FIG. 8 is a perspective view showing an embodiment with an upper surface layer on the upper surface of the foot cushion.

Referring to Figure 1, Figure 2 and Figure 3, a preferred embodiment of the foot cushion of the present creation is shaped to correspond to the shape of the inner bottom surface of the shoe and can be arranged on the inner bottom surface of the shoe for contact with the sole of the foot that penetrates into the shoe, It includes a front plantar area A, a midfoot area B and a heel area C, and has a soft elastic body 1 located above the foot cushion and a hard elastic body 2 located below the foot cushion. Among them, the front plantar area A is the area for the forefoot palm of the foot to step on, the midfoot area B is the area for the middle part of the foot including the arch of the foot to contact, and the heel area C is for the heel of the foot to step on. Area.

The soft elastomer 1 can be made of thermoplastic rubber (Thermoplastic Rubber, TPR for short), thermoplastic elastomer (Thermoplastic Elastomer, TPE for short), thermoplastic polyurethane elastomer (Thermoplastic polyurethanes, TPU for short), silicone (Silicone), microcell polymerization Material (Porn), polyurethane (Polyurethane, PU for short), rubber foam material (EVA), sponge (SPONGE), rubber (RUBBER) and other materials are injection molded into the shape corresponding to the inner bottom of the shoe. From the overall point of view of the foot cushion, the edge of the soft elastic body 1 of the front plantar area A is designed according to the arc curve of the toes close together, and the entire foot cushion is from the edges of both sides of the rear section of the front plantar area A to the heel area. The direction of the edge of C is gradually thickened, so that the foot cushion is fitted and fixed in the shoe body by this thickness; in addition, the thickness of the heel area C is greater than the thickness of the front plantar area A, which is because when people walk or run, The heel of the foot will bear a large ground impact force, so the thickness of the heel area C is greater than the thickness of the front plantar area A. For example, the thickness of the front plantar area A is 2-3mm, and the thickness of the heel area C can be 7-8mm. Considering the comfort of wearing shoes, an upper surface layer 3 can be combined with the upper surface of the soft elastic body 1; for example, as shown in FIG. Set patterns, patterns, words or trademarks on it according to the needs of the design.

In the present invention, a concave area 11 for placing the heel of the foot is further formed on the upper surface of the soft elastic body 1 of the heel area C. As shown in FIG. 7 , the opposite sides of the concave area 11 have inner arch concave arcs The surface 111 and the outer arch concave arc surface 112, the preferred radius R1 of the inner arch concave arc surface 111 is 7.5mm~9.5mm, and the preferred radius R2 of the outer arch concave arc surface 112 is 8.5mm~10.5mm ; The bottom upper surface of the recessed area 11 is formed as an upwardly convex arc surface.

Since the soft elastic body 1 is relatively soft, in order to improve the strength and elasticity of the entire foot cushion, this creation further combines a hard elastic body 2 with a higher relative hardness than the soft elastic body 1 under the soft elastic body 1; in this creation In a preferred embodiment, the rigid elastomer 2 can be made of thermoplastic polymer materials ( A crylonitrile Butadiene S tyrene , referred to as ABS), polypropylene (Polypropylene, referred to as PP), polyethylene (Polyethylene, referred to as PE), thermoplastic polyurethane Elastomer rubber (TPU), nylon (NYLON) and other materials are injection-molded to be included in the aforementioned midfoot area B and heel area C, but not included in the aforementioned front plantar area, as well as the rigid elastomer in the heel area C 2. A through hole 21 of unlimited shape is formed; at the same time, the hard elastic body 2 of the midfoot region B is shaped into an arch shape that protrudes upward and has an appropriate arch radii R (as shown in FIG. 3 ). The inner arch convex surface 22 and the outer arch convex arc surface 23 are respectively formed on the opposite outer sides of the rigid elastic body 2 in the heel region C. The preferred radius R3 of the inner arch convex arc surface 22 is 13.5 mm~16mm, the preferred radius R4 of the outer arch convex surface 23 is 13.5mm~15.5mm. The foot cushion made by the radii R1 and R2 of the soft elastic body 1 and the radii R3 and R4 of the hard elastic body can provide the most ergonomic structure, so that the foot that penetrates into the shoe can be provided with the most ergonomic structure. For optimum comfort.

The method of combining the hard elastic body 2 with the soft elastic body 1 in the present invention is to form the hard elastic body 2 with a predetermined shape first, and then put the hard elastic body 2 into a mold for forming the soft elastic body 1 , and then use injection molding technology to inject molten TPR, TPE, TPU, Silicone, Poron, PU, EVA, SPONGE or RUBBER into the mold and stick to the rigid elastomer 2; They are different materials, which may cause false bonding and easy to disengage. Therefore, in this creation, the soft elastomer 1 is subjected to secondary processing when the hot viscosity after injection molding is still at a high temperature of 80~230 degrees, so that the soft elastomer 1 and the hard elastic body 2 are completely adhered and firmly attached without false joints. After cooling and demoulding, the soft elastic body 1 and the hard elastic body 2 are combined with each other to form a full-foot cushion, and part of the soft elastic body 1 is filled with the material. inside the through hole 21 of the hard elastic body 2 . The aforementioned secondary processing refers to applying appropriate pressure to the soft elastic body 1 and the hard elastic body 2 to make the two fit each other better.

With the aforementioned foot cushion structure of the present invention, when it is installed in a shoe and is worn, the arch of the sole of the foot can be elastically supported by the arch shape of the midfoot region B, so as to avoid walking fatigue; The recessed area 11 located in the heel portion C covers the circumference of the heel, and the soft elastic body located in the area of the through hole 21 provides a more ergonomic foot cushion structure, in addition to effectively cushioning the impact force when the heel falls on the ground In addition, it also provides a more comfortable feeling for the wearer.

The above descriptions are only used to explain the preferred embodiments of this creation, and are not intended to limit this creation in any form. Therefore, any modifications or changes to this creation are made in the same creative spirit. , should still be included in the scope of protection intended for this creation.

1: Soft Elastomer 11: Depressed area 111: Inner arch concave arc 112: Outer arch concave arc 2: Hard elastomer 21: Through hole 22: Convex curved surface of inner arch 23: Outer arch convex surface 3: Upper surface layer A: Anterior plantar area B: Midfoot area C: heel area R: arch radius R1: radius of inner arch concave arc R2: radius of concave arc of outer arch R3: The radius of the convex arc of the inner arch R4: The radius of the convex arc surface of the outer arch

1 is a schematic front plan view showing an embodiment of a foot cushion of the present invention; FIG. 2 is a schematic plan view showing the side view of an embodiment of the foot cushion of the present invention; FIG. 3 is a plan cross-sectional view showing the foot cushion of the present invention along the direction III-III of FIG. 1; FIG. 4 is a plan cross-sectional view showing the cushioning pad for feet of the present invention along the direction of IV-IV of FIG. 1; Fig. 5 is a plane sectional view showing the cushioning pad for foot of the present invention along the direction V-V of Fig. 1; FIG. 6 is a plane cross-sectional view showing the foot cushion of the present invention along the VI-VI direction of FIG. 1; FIG. 7 is a plan cross-sectional view showing the foot cushion of the present invention along the direction VII-VII of FIG. 1; and FIG. 8 is a perspective view showing an embodiment of the present invention where an upper surface layer is provided on the upper surface of the foot cushion.

1: Soft Elastomer

11: Depressed area

2: Hard elastomer

21: Through hole

A: Anterior plantar area

B: Midfoot area

C: heel area

R: arch radius

Claims (5)

A foot cushion, which is shaped to correspond to the shape of the inner bottom surface of a shoe and includes a front plantar area, a midfoot area and a heel area, characterized in that: This foot cushion includes: A soft elastic body is formed to be located above the foot cushion, and a concave area is formed on the upper surface of the heel area. The opposite sides of the concave area are respectively formed with an inner arch concave arc and an outer foot Concave arc surface, the radius of the inner arch concave arc surface is 7.5mm~9.5mm, and the radius of the outer arch concave arc surface is 8.5mm~10.5mm; A hard elastic body is formed to be located under the foot cushion and combined with the bottom surface of the soft elastic body in the midfoot area and the heel area, and the hard elastic body at the position of the heel area is provided with a pass through A part of the material of the soft elastic body is filled into the through hole, and an inner arch convex surface and an outer arch convex surface are respectively formed on the opposite sides of the hard elastic body in the heel area. The radius of the convex arc surface of the arch is 13.5mm~16mm, and the radius of the convex arc surface of the outer arch is 13.5mm~15.5mm. The foot cushion according to claim 1, wherein the upper surface of the concave area of the soft elastic body is formed as an upwardly convex arc surface. The foot cushion according to claim 2, wherein the soft elastic body and the hard elastic body in the midfoot region are formed in an upwardly protruding arch. The foot cushion according to claim 3, wherein the upper surface of the soft elastic body is combined with a cloth surface as the upper surface layer. The foot cushion according to claim 3, wherein the upper surface of the soft elastic body is combined with a plastic material with patterns on the surface as the upper surface layer.

Images