Patent Application
20100071229
The present invention relates to a shoe insole with a reinforcement layer enclosed between a top layer and a base, and a method for making the insole with less number of procedures and suitable for mass production.
A conventional insole is put in the shoe and directly contact wearer's feet so that most of the insoles are made by flexible material and the insoles can be conveniently replaced and cleaned.
The conventional insoles are made by Ethylene Vinyl Acetate (EVA), Polyvinyl Chloride (PVC) or Polyethylene (PE). Some insoles include a surface material attached on the body of insole. However, the conventional insoles tend to be deformed permanently if the material is too soft or to be uncomfortable to the wearer if the material is too stiff.
Although some insoles include multiple layers which are laminated to each other, this type of insoles requires a lot of laboring hours to glue the layers one by one, and this does not meet requirement of mass production. Besides, the middle layer often protrudes from a periphery of the insole and is easily damaged by foreign objects.
The present invention intends to provide a shoe insole which improves the shortcomings of the conventional insoles and the middle layer is completely enclosed between the top layer and the base of the insole.
Furthermore, the present invention also provides a method for making the shoe insole and the procedures are simple and suitable for mass production.
The present invention relates to a method for making an insole and includes a step (1) for preparing a base, attaching at least two reinforcement layers on a top of the base and a top layer attached on the base and covering the at least two reinforcement layers, the respective peripheries of the reinforcement layers being attached to the base so as to form a combination unit, and a step (2) for pressing and cutting the combination unit to obtain insoles, the reinforcement layer being enclosed between the base and the top layer. The method is suitable for mass production of the insoles.
The top layer can be a piece of fabric or leather, or a piece of fabric or leather attached with a soft layer and the thickness of the soft layer can be varied according needs. The base can be made by thermoplastic material such as Ethylene Vinyl Acetate (EVA), Polyvinyl Chloride (PVC), or Polyethylene (PE). The reinforcement layer can be latex sponge, rubber sponge or Polyurethane (PU). The top layer can be a piece of fabric or leather.
The insole made by the method includes a base layer, a reinforcement layer attached on a top of the base layer, and a top layer attached on the reinforcement layer and a periphery of the top layer being directly attached to the base layer, the reinforcement layer being enclosed between the base layer and the top layer.
The periphery of the top layer is directly attached with the base layer so that the reinforcement layer which is enclosed between the base layer and the top layer. The reinforcement layer does not protrude or exposed from the insole so that it is well protected and not being damaged.
The top layer can be a piece of fabric or leather, or a piece of fabric or leather attached with a soft layer and the thickness of the soft layer can be varied according needs. The base layer can be made by thermoplastic material such as Ethylene Vinyl Acetate (EVA), Polyvinyl Chloride (PVC), or Polyethylene (PE). The reinforcement layer can be latex sponge, rubber sponge or Polyurethane (PU). The top layer can be a piece of fabric or leather.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
The base or base layer of the embodiment in the invention can be made by thermoplastic material such as Ethylene Vinyl Acetate (EVA), Polyvinyl Chloride (PVC), or Polyethylene (PE).
Referring to
a step (2): pressing and cutting the combination unit to obtain insoles 100, the reinforcement layer 20 being enclosed between the base 10 and the top layer 30.
The reinforcement layer 20 can be latex sponge, rubber sponge or Polyurethane (PU). The top layer 30 can be a piece of fabric or leather.
By the method, the insoles 100 can be made in mass production. The number of reinforcement layer 20 and/or top layer 30 can be varied according needs.
The method of the present invention is suitable for mass production without much laboring and therefore is benefit by increasing the manufacturing efficiency and the competitiveness in the market. The reinforcement layer 20 of the insole made by the method of the present invention does not protrude from the base layer 11 and the top layer 30 so that the reinforcement layer 20 is well protected and does not wear out. The combination of the base layer 11 and the reinforcement layer 20 provides proper flexibility and does not deform. The structure of the insole is simple and strong.
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/CN06/02346 | 9/11/2006 | WO | 00 | 1/10/2008 |
