WO2020015638A1

WO2020015638A1 - Limb protector

Info

Publication number: WO2020015638A1
Application number: PCT/CN2019/096162
Authority: WO
Inventors: 张继川; 李亮亮; 张立群; 岳慧; 高瑞文
Original assignee: 北京化工大学; 山东贝隆控股集团有限公司
Priority date: 2018-07-18
Filing date: 2019-07-16
Publication date: 2020-01-23
Also published as: CN211097440U

Abstract

A limb protector, comprising a protector main board and connecting members, wherein the connecting members are arranged on two sides of the protector main board; the protector main board is in a planar layered structure; an upper end edge of the protector main board is parallel to a lower end edge thereof; and upper halves of edges on two sides of the protector main board are in an outwardly convex arc shape, and lower halves are in an inwardly concave arc shape, the two arcs being smoothly connected. A limb protector that is completely suitable for the curves of the arms and calves of an athlete may be produced according to the arc radian of the arms and calves of the athlete. In addition, the protector has a simple manufacturing process, which saves energy and reduces consumption.

Description

Protective gear for limbs

Technical field

The utility model belongs to the technical field of health care products, and particularly relates to a protective device for limbs.

Background technique

At present, there are many types of protective gear for limbs of football players on the market, with different grades. The leg shields sold on the domestic market are mainly made of polymer materials to protect the human body from external forces, and then lined with foam materials such as EVA, rubber, and polyurethane to dissipate energy and protect the human body from harm. According to the material and price difference, it can be divided into different grades. Lower grades are generally made of polyethylene, polypropylene, polyvinyl chloride and other plastics; medium grades are made of polyurethane and other materials; and high grades are made of carbon fiber materials. Regardless of high, medium and low gear, these leg guards have two common disadvantages that cannot be overcome:

One is that these limb protectors are all molded at one time, and the shape of the appearance cannot be changed after shaping. Therefore, they cannot adapt to the characteristics of different shapes of limbs of different groups, and this is especially important for young athletes, because young people have the fastest growth At this stage, as the teenagers continue to grow taller, the leg shape will also change significantly, so the leg shield has to be replaced many times to ensure comfortable wearing and improve protection;

Secondly, these materials are made of petroleum-based chemical raw materials and belong to non-renewable materials. Due to the different physiques of the users, they are allergic to some chemical components and may cause discomfort.

Utility model content

The purpose of this utility model is to solve the problems existing in the prior art mentioned above, to provide a protective device for limbs, which can be repeatedly shaped and fully fit the shape of the limbs of the wearer to ensure the wearing comfort of the athlete.

The utility model is realized through the following technical solutions:

A protective gear for limbs, comprising a protective gear main board and a connecting member, the connecting members are arranged on both sides of the protective gear main board;

The main board of the protective gear is a planar layered structure;

The upper end edge of the protector main board is parallel to the lower end edge;

The upper half of the edges on both sides of the main board of the protector is an outwardly convex arc shape, the lower half is an inwardly concave arc shape, and the two arcs are smoothly connected.

The main board of the protective gear includes three layers, which are: a surface decorative layer, a protective layer and a soft lining from the outside and the inside respectively;

The soft lining layer and the protective layer are integrated into a unified structure through heat bonding or co-vulcanization;

The protective layer is coated with the surface decoration layer.

The total thickness of the main board of the protective device is 1-10 mm, wherein the thickness of the soft underlayer is 0.5-9 mm, and the thickness of the protective layer is 2-8 mm.

The main board of the protective gear includes four layers, which are: a surface decoration layer, a protective layer, an adhesive layer and a soft lining from the outside and the inside respectively;

The protective layer and the soft underlayer are bonded together by an adhesive layer;

The surface decoration layer is coated on the outside of the protective layer.

The radius of the outwardly convex arc is 10-20 cm;

The radius of the inwardly recessed arc is 10-20 cm.

The connecting piece adopts a lace;

Holes are opened on both sides of the main board of the protective gear, and the tie is worn in each hole.

The connecting piece adopts a zipper;

Flexible soft rubber strips are respectively connected to both sides of the main board of the protective gear, and a zipper is embedded in the flexible soft rubber strips;

The elastic soft rubber strips are vulcanized and connected with both edges of the main board of the protective gear.

Holes are evenly distributed on the main board of the protective gear, and the diameter of the holes is 1-20 mm.

A diamond-shaped mesh is uniformly distributed on the main board of the protective gear, and the diameter of the diamond-shaped mesh is 2-20 mm.

Compared with the prior art, the beneficial effects of the present utility model are:

1) The raw materials of the utility model are derived from natural plants and belong to renewable resources. The products produced are green and environmentally friendly. After being discarded, they return to the atmosphere in the form of carbon dioxide, without generating additional carbon emissions, and have significant environmental benefits.

2) Once the protective gear is shaped, if you feel uncomfortable, you can change the shape many times under the condition of heating above 60 degrees. The entire operation process is simple and convenient, so athletes can prepare protective gear that is fully suitable for the curve of their arms and calves according to the curve of their arms and calves;

3) The protective gear of the utility model is completely a flat plate product, the manufacturing process of the factory is simple, and the energy saving is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention

Figure 2 Schematic diagram of the main board of the protective gear with zipper

Figure 3 Schematic diagram of the three-layer structure in Embodiment 1 of the present invention

Figure 4 Schematic diagram of the four-layer structure in Embodiment 2 of the present invention

FIG. 5 is a schematic view of holes uniformly distributed on the main board of the protective gear

FIG. 6 is a schematic diagram of a diamond-shaped mesh opening on the main board of the protective gear.

detailed description

The following further describes the present invention in detail with reference to the drawings:

As shown in FIG. 1 to FIG. 2, a protective device for limbs includes a protective device main board and a connecting member, and the connecting members are disposed on both sides of the protective device main board;

The main board of the protective gear is a planar layered structure;

The upper half of the edges on both sides of the main board of the protector is an outwardly convex arc with a radius of 10-20 cm, and the lower half is an inwardly-recessed arc with an arc radius of 10-20 cm , The two arcs are smoothly connected. This edge shape is adopted to adapt to the characteristics of human limbs, so that the protective gear completely covers the limbs without gaps.

The connecting piece adopts a tie. As shown in FIG. 1, holes are opened on both sides of the main board of the protector, and the tie is penetrated in each hole.

The connecting member may also be a zipper; as shown in FIG. 2, elastic soft rubber strips are respectively connected to both sides of the main board of the protector, and a zipper is embedded in the elastic soft rubber strip. The two edges of the protector main board are vulcanized to join.

In order to increase the air permeability, as shown in FIG. 5, uniform holes may be opened on the main board of the protective gear, and the diameter of the holes is 1-20 mm. Alternatively, as shown in FIG. 6, a uniformly distributed diamond mesh is opened on the main board of the protective gear, and the diameter of the diamond mesh is 2-20 mm.

The main board of the protective gear is made of a composite material with a shape memory function, as follows:

Embodiment 1: As shown in FIG. 3, the main board of the protective gear includes three layers, from the outside and the inside, respectively: a surface decoration layer 1, a protective layer 2 and a soft lining layer 3; the soft lining layer and the protective layer pass through heat Laminate or co-vulcanize to form an integrated structure, and the surface of the protective layer is coated with a surface decorative layer.

Embodiment 2: As shown in FIG. 4, the main board of the protective gear includes four layers, which are: a surface decoration layer 1, a protective layer 2, an adhesive layer 4 and a soft lining layer 3 from the outside and the inside, respectively. After mixing and vulcanization, after the soft lining is mixed and vulcanized or foamed, the protective layer and the soft lining are bonded together by an adhesive layer.

In the two embodiments, the surface decoration layer is a coating layer, and the surface decoration layer is a polyurethane-based coating; the protective layer is made of plastic, and the plastic is eucommia gum, Gutapo gum, balata gum, peach One or a combination of euonymus gum, synthetic trans-1,4-polyisoprene, and polycaprolactone; the soft underlayer is foamed polyurethane, rubber, or foamed rubber; the rubber is natural rubber One or a combination of styrene-butadiene rubber, butadiene rubber, EPDM rubber, silicone rubber, fluorine rubber, neoprene, nitrile rubber, butyl rubber, acrylate rubber, and chlorosulfonated polyethylene; The foam rubber is made of natural rubber, styrene butadiene rubber, butadiene rubber, ethylene propylene diene rubber, silicone rubber, fluorine rubber, neoprene, nitrile rubber, butyl rubber, acrylate rubber, and chlorosulfonated polyethylene. One or a combination of foamed rubbers prepared from raw materials; the foamed plastics are polyethylene foamed material, polypropylene foamed material, polystyrene foamed material, EVA foamed material, and polyvinyl chloride foamed material Or a combination of polyurethane foam materials; said Layer is a rubber series adhesive, a polyurethane adhesive and an epoxy resin series adhesive.

The utility model is prepared from a polymer composite material with shape memory. First, it has a low softening point (above 60 degrees) and can be shaped freely. The crystal at room temperature is fixed in a deformed shape. Therefore, it can be fitted to the limbs. Using the special properties of shape memory of eucommia gum, a personalized protective gear that can be repeatedly shaped is prepared. In this way, football players, especially young football players, can easily adjust the shape of the protective gear according to their limbs or body shape changes brought about by growth, so that they fit perfectly with the limbs and integrate with the limbs, thereby maximizing Limits are protective. In addition, eucommia gum has a crystalline melting point of about 60 ° C and is a poor conductor of heat, so it will not burn the human body during the operation of softening plasticity. The natural polymer eucommia gum and other materials used by the utility model are green, environmentally friendly and renewable materials, and there are basically no three waste emissions during the preparation process, which meet the requirements of national energy conservation and emission reduction, development of green, low carbon, and circular economy.

The above technical solution is only one embodiment of the present invention. For those skilled in the art, based on the principles disclosed in the present utility model, it is easy to make various types of improvements or deformations, not limited to the present invention. The structure described in the above specific embodiments of the utility model, therefore, the foregoing description is only preferred, and not restrictive.

Claims

A protective gear for limbs, characterized in that the protective gear for limbs comprises a main board of a protective gear and a connecting member, and the connecting members are arranged on both sides of the main board of the protective gear;

The main board of the protective gear is a planar layered structure;

The upper end edge of the protector main board is parallel to the lower end edge;

The upper half of the edges on both sides of the main board of the protector is an outwardly convex arc shape, the lower half is an inwardly concave arc shape, and the two arcs are smoothly connected.
The protective device for limbs according to claim 1, characterized in that: the main board of the protective device comprises three layers, from the outside and the inside, respectively: a surface decoration layer, a protective layer and a soft lining layer;

The soft lining layer and the protective layer are integrated into a unified structure through heat bonding or co-vulcanization;

The protective layer is coated with the surface decoration layer.
The protective device for limbs according to claim 2, wherein the total thickness of the main board of the protective device is 1 to 10 mm, wherein the thickness of the soft lining layer is 0.5 to 9 mm, and the thickness of the protective layer is 2 to 8 mm.
The protective device for limbs according to claim 1, characterized in that the main board of the protective device comprises four layers, from the outside and the inside, respectively: a surface decoration layer, a protective layer, an adhesive layer and a soft lining layer;

The protective layer and the soft underlayer are bonded together by an adhesive layer;

The surface decoration layer is coated on the outside of the protective layer.
The protective device for limbs according to claim 4, wherein the total thickness of the main board of the protective device is 1 to 10 mm, wherein the thickness of the soft lining layer is 0.5 to 9 mm, and the thickness of the protective layer is 2 to 8 mm.
The protective device for limbs according to claim 2 or 4, characterized in that the radius of the outwardly protruding arc is 10-20 cm;

The radius of the inwardly recessed arc is 10-20 cm.
The protective device for limbs according to claim 1, characterized in that: the connecting member is a tie;

Holes are opened on both sides of the main board of the protective gear, and the tie is worn in each hole.
The protective device for limbs according to claim 1, wherein the connecting member is a zipper;

Flexible soft rubber strips are respectively connected to both sides of the main board of the protective gear, and a zipper is embedded in the flexible soft rubber strips;

The elastic soft rubber strips are vulcanized and connected with both edges of the main board of the protective gear.
The protective device for limbs according to claim 1, wherein a uniformly distributed hole is formed on the main board of the protective device, and the diameter of the hole is 1-20 mm.
The protective device for limbs according to claim 1, characterized in that a diamond-shaped mesh hole is evenly distributed on the main board of the protective device, and the diameter of the diamond-shaped mesh is 2-20 mm.
The protective device for limbs according to claim 2 or 4, wherein:

The surface decoration layer is a polyurethane series coating;

The protective layer is made of plastic, and the plastic is one of eucommia gum, gutta-percha gum, balata gum, Eucalyptus esculenta, synthetic trans-1,4-polyisoprene, and polycaprolactone. Or combination

The soft underlayer is foamed plastic rubber or foamed rubber; preferably, the rubber is natural rubber, styrene-butadiene rubber, butadiene rubber, EPDM rubber, silicone rubber, fluorine rubber, neoprene rubber, butadiene rubber One or a combination of nitrile rubber, butyl rubber, acrylate rubber, and chlorosulfonated polyethylene; preferably, the foamed rubber is natural rubber, styrene-butadiene rubber, butadiene rubber, EPDM rubber, One or a combination of silicone rubber, fluororubber, neoprene, nitrile rubber, butyl rubber, acrylate rubber, and chlorosulfonated polyethylene as foamed rubber; preferably, the foamed plastic is One or a combination of polyethylene foam material, polypropylene foam material, polystyrene foam material, EVA foam material, polyvinyl chloride foam material, and polyurethane foam material.
The protective device for limbs according to claim 4, characterized in that:

The adhesive layer is a rubber series, a polyurethane series and an epoxy series.