KR20110027315A - The mounting structure of mesh - Google Patents

Abstract

PURPOSE: A mesh fastening structure is provided to improve fastening force and tensile force of mesh by forming a wide area between a first frame and a second frame. CONSTITUTION: A mesh fastening structure comprises a first frame, a first fixing unit, a second fixing unit, a concave part(115), and a protrusion(215). The first fixing unit fixes the mesh(300) to the first frame. The second fixing unit fixes the mesh to the first frame and also fixes a second fame coupled to the first frame. The concave part and protrusion are formed at the part corresponding to the first and second frames and provides tension to the mesh.

Description

The mounting structure of mesh

The present invention relates to a mesh fastening structure, and more particularly, to a mesh fastening structure and a chair, a bed, and a stretcher using the same to improve the fastening force and tensile force of the mesh to improve durability and convenience.

In general, a chair is composed of a seat plate, a back plate and a leg supporting the seat plate.

These chairs are divided into various types according to their shape, structure, materials and processing techniques. Depending on the shape, there are chairs without a back, small chairs, armrest chairs, armchairs, sopas, rocking chairs, etc. Depending on the application, there are office, learning, dining, and meeting chairs. Haircuts, cosmetics, medical, theatre, and the like.

The structure of the chair is fixed, rotary, folding and combination, and the materials used include wooden chairs, metal chairs, plastic chairs, and the like.

When the user sits in a chair, the buttocks of the user come into contact with the seat plate and provide cushions to the seat plate and the back plate for the user's convenience.

Recently, mesh-type cushions have been attracting attention. In particular, a mesh chair with a well-ventilated and hygienic mesh cushion provides a great convenience for the user during summer, when the temperature and humidity are high.

The mesh mesh used for high-end office chairs has the advantage of distributing weight, reducing fatigue, being well ventilated, and preventing ticks from breeding.

The mesh fastening structure is very important for producing a mesh chair.

Conventionally, in order to fix the mesh member to the frame, the support member is fixed to the edge of the mesh member, and then the support member is temporarily bent to insert a support zone into the groove formed on the inner circumferential surface of the frame.

In addition, a method of screwing the intermediate member after fastening the mesh member to the intermediate member has also been proposed.

1 shows a conventional mesh fastening structure.

Conventional mesh fastening structure is provided between the frame 30 and the cover 40, the tension unit 50, which provides a tension force to the mesh member 10 when the frame 30 and the cover 40 are assembled with each other, the frame 30 and a fastening unit 60 for fastening the cover to each other.

In one example, the tension unit 50 is opposed to the cover portion 40 of the frame 30 to be fitted to the groove portion 51 formed on the surface of the cover 40 opposite the frame 30, and to the groove portion 51. It may include a protrusion 52 formed on the surface.

The fastening unit 60 includes a first through hole 61 formed in the frame 30, a second through hole 62 formed in the intermediate member 20 to correspond to the first through hole 61, and The screw groove 63 formed in the cover 40 to correspond to the two through holes 62, and the first through hole 61, the second through hole 62, and the screw groove 63 in sequence It may include a bolt 64 is fastened to.

On the other hand, after the mesh member 10 is connected to the intermediate member 20, the intermediate member 20 is fastened.

Accordingly, the second through hole 62 of the intermediate member 20 is positioned in the first through hole 61 of the frame 30, and the cover 40 is disposed in the second through hole 62 of the intermediate member 20. When the bolt groove 63 is positioned to fasten the bolt 64 to the first through hole 61, the second through hole 62, and the screw groove 63, the frame 30 and the intermediate member 20. And the cover 40 are fastened to each other.

However, such a conventional mesh fastening structure fixes the mesh member 10 between the frame 30 and the cover 40 through the intermediate member 20, so that the fastening strength of the mesh member 40 is weak, and the mesh member is used for a long time. Problem occurs.

In addition, since the bolt 64 is directly fastened to the cover 40, loosening of the bolt 64 is likely to occur. Since the cover 40 is usually made of a plastic material or the like, the thread is blunted when used for a long time.

In addition, it is unreasonable in terms of productivity because it involves an additional step of fastening (coupling) the intermediate member to the mesh member.

In addition, the fastening structure as described above does not fasten the mesh member more strongly because the area that the mesh member is inserted between the frame 30 and the cover 40 is narrow.

Accordingly, a mesh fastening structure that can provide sufficient tensile force to the mesh and that the fastening strength of the mesh does not weaken even if the user uses it for a long time is reliable and its manufacturing method is simple.

The present invention devised to solve the problems of the prior art as described above is a mesh fastening which can improve the durability and reliability by improving the fastening force and tensile force of the mesh by double and triple mesh fastening structure and the contact area between the mesh and the frame The purpose is to provide a structure.

In addition, the purpose of the present invention is to provide a mesh fastening structure that can improve productivity by increasing the tensile force and fastening strength of the mesh, and the production method is simple.

The object of the present invention is a first frame; First fixing means for fixing the mesh to the first frame; Second fixing means for fixing the mesh to the first frame and simultaneously fixing the second frame to the first frame; And recesses and protrusions formed in corresponding portions of the first frame and the second frame to provide tensile force to the mesh.

On the other hand, the first fixing means may be takapin.

On the other hand, the second fixing means may be a bolt.

Meanwhile, the bolt may be fastened to an insert nut formed in the first frame.

The mesh may be fixed to the rear surface of the first frame by the first fixing means and the second fixing means, and may be disposed around the side of the first frame to be disposed at the front of the first frame.

Meanwhile, the first frame may be made of polypropylene.

On the other hand, the second frame may be made of a polyamide resin.

In addition, the object of the present invention is a first frame;

Takapin for fixing the mesh to the first frame; A bolt to fix the mesh to the first frame and to fix the second frame coupled to the first frame; And a chair, bed or stretcher having a mesh fastening structure comprising recesses and protrusions formed in corresponding portions of the first frame and the second frame to provide tension to the mesh.

Therefore, the mesh fastening structure of the present invention is the first fastening means by the Takapin, etc., the second fastening means by the insert nut and bolt, etc., the fixing and tensile force improvement by the corresponding recesses and protrusions of the first frame and the second frame, Through the mesh fastening structure by a larger area between the first frame and the second frame, etc., the fastening force and the tensile force of the mesh used for the chair, the bed, the stretcher, etc. can be improved, thereby improving durability and reliability.

In addition, the mesh fastening structure of the present invention has an effect that the fastening method is simple to greatly reduce the production cost of the chair, bed, stretcher, etc. having a mesh fastening structure.

The terms or words used in this specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 are perspective views of the first frame and the second frame of the mesh chair back portion according to an embodiment of the present invention.

Meanwhile, the mesh fastening structure of the present invention may be variously applied to a chair, a bed, or a stretcher, but will be described based on the back of the chair.

The front surface 102 of the first frame 100 in contact with the back of a person sitting in a chair may be smoothly processed, and the side surface 104 of the first frame may be determined in consideration of the thickness of the back of the chair. .

The edge portion of the mesh is fixed to the rear side 106 of the first frame, and the fixed mesh is positioned on the front side 102 of the first frame again by riding the side 104 of the first frame. Direct contact, which will be described later.

The second frame 200 is fastened to the first frame 100 and between the second frame front surface 202 and the second frame front surface 202 compressing the edges of the mesh therebetween, the first frame side 104 The second frame side 204, which compresses the riding mesh once again, forms a rear surface of the chair back and includes a second frame rear side 206 connected to the headrest or the main frame if necessary.

4 is a plan view of a rear surface of the first frame, and FIG. 5 is a cross-sectional view taken along line A-A 'of FIG.

4 and 5, a plurality of fastening grooves 120 for fastening with the second frame 200 are formed along the first frame rear surface 106 on the rear surface of the first frame.

Meanwhile, a nut for improving the fastening strength with the second frame 200 is formed in the fastening groove 120, and the nut is preferably an insert nut 150.

In other words, when a screw thread (nut) is formed directly on the frame of a chair made of a plastic material and fastened by bolts, the user is easily broken when the user continuously applies pressure.

Therefore, the first frame 100 and the second frame 200 can be fixed more strongly by inserting a nut made of a material having high strength such as metal and injecting the same when the injection molding of the first frame 100 is performed. Even if it is used for a long time, no failure occurs and it can give high reliability.

Looking at the cross section of the first frame, the first convex portion 111, the first frame recess 112, the second convex portion 113, the fastening groove 120, the recess 115 and the third from the inside of the first frame The convex portion 116 may be configured in the same shape, and the order thereof may be changed.

The recess 112 existing between the first convex portion 111 and the second convex portion 113 is concave because first fixing means (for example, tacapin) for attaching the mesh to the first frame 100 enters in the future. The concave portion 115 between the second convex portion 113 and the third convex portion 116 is in contact with the protrusion of the second frame 200 in order to give tension to the mesh in the future and to fix it more strongly. to be.

4 and 5 illustrate a state in which the recess 115 of the first frame is elongated without a short circuit along the rear surface of the first frame, but only in a portion contacting the protrusion 215 of the second frame 200. 115 may be formed.

Meanwhile, although the cross-sectional shape of the concave portion 115 is a triangle in FIG. 5, various shapes such as a polygon such as a semicircle, a semi-ellipse, and a quadrangle may be made in accordance with the shape of the protrusion 215 of the second frame 200.

FIG. 6 is a plan view of the front of a second frame according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along line BB ′ of FIG. 6.

Referring to FIGS. 6 and 7, a plurality of protrusions 215 are formed on the front surface of the second frame 200, and the cross-sectional shape of the second frame 200 is fitted with the recess 115 of the first frame. Provides a tensile force to the mesh fastened in between, and at the same time serves to fasten the mesh.

In addition, a plurality of fastening holes 220 are formed, and the first frame 100 and the second frame are fastened by inserting bolts through the fastening holes 220 and fastening the insert nuts 150 of the first frame 100. Strongly coupled 200.

A second frame recess 212 is present between the inner convex portion 211 and the outer convex portion 213 of the second frame 200, and a rear surface of the first frame is formed between the inner convex portion 211 and the outer cut portion 213. As the 106 is in contact with the mesh between them, the mesh is fastened in a larger area to increase the fastening strength of the mesh, which will be described later.

8 is a perspective view illustrating various embodiments of a second frame protrusion.

As shown in FIG. 8, the protrusion 215 of the second frame may have various shapes, such as pyramid form (FIG. 8 (a)), triangular pyramid form (FIG. 8 (b)), and convex hemisphere form (FIG. 8 ( c)), flat hemisphere shape (FIG. 8 (d)), and the like.

6 and 8 illustrate that a plurality of protrusions 215 are intermittently present in the second frame 200, the plurality of protrusions 215 may be connected to each other.

Meanwhile, as will be described later, the concave portion 115 of the first frame and the protrusion 215 of the second frame may be interchanged. That is, the protrusion may be formed in the first frame 100 and the recess may be formed in the second frame 200.

9A is a perspective view of a backrest showing a mesh fastening state according to an embodiment of the present invention, and FIG. 9B is a side view of FIG. 9A viewed from the X direction. 10 to 12 are cross-sectional views showing a method of fastening a mesh according to an embodiment of the present invention.

That is, FIGS. 10 to 12 show the part corresponding to the cross section of C-C 'of FIG. 9A according to the mesh fastening order.

Mesh fastening structure of the present invention may be configured to gradually move away from the first frame toward the center of the first frame from the side of the first frame 100, which is not a flat structure of the first frame 100 It is possible by having a structure.

That is, as shown in FIG. 9B, in the center, the first frame 100 and the mesh 300 may be spaced apart by a predetermined interval G, and the user may contact the mesh 300 without directly contacting the first frame 100. Because of this very cushioned mesh can have a very comfortable state.

Meanwhile, in FIG. 9A, the mesh 300 covers the entire surface of the first frame 100. However, the mesh 300 may cover only a partial surface of the first frame 100 without covering the entire surface of the first frame 100.

Hereinafter, a mesh fastening method will be described with reference to FIGS. 10 to 12.

First, as shown in FIG. 10, the edge portion of the mesh 300 is fixed to the rear surface 106 of the first frame by the first fixing means 400.

The mesh 300 has a structure of weaving or weaving a series of warp yarns and wefts crossing the same, and the material of the warp yarns and weft yarns is not limited, and the warp yarns and weft yarns may include elastic yarns and a plurality of chenille yarns. have.

For example, the warp may be made of polyester multifilament having approximately 500 denier, and the weft may be polyether-ester elastic spinning having 100 to 3000 denier.

Such a mesh is well-ventilated and does not take moisture, thereby preventing mites from inhabiting the chair, thereby providing a comfortable and hygienic chair.

10 to 12 illustrate a method of fixing with a tacho pin 400 using a tacho gun as an example of the first fixing means 400, but the present invention is not limited thereto. Means are also possible.

For example, a method of high frequency bonding, a method of using an adhesive, a method of using a wand, and the like may be used as examples of the first fixing means 400.

When using a Taka gun, it is possible to use an air tac or electric tac, and a straight or 'c' shaped pin may be used. 'C'-shaped pin is preferable for fixing the mesh, but is not limited thereto. Even other types of takapin may be sufficiently fixed since they have a double or triple fixing structure.

That is, when the edge of the mesh 300 is applied to the rear side 106 of the first frame and the takapin is fired with the tacho gun, the takapin 400 is formed of the first convex portion 111 and the second convex portion 113 of the first frame. While being stuck in the recess 112 existing therebetween, the mesh 300 is primarily fixed.

The edge of the mesh 300 is fixed to the recess 112 of the first frame by the takapin 400, and the side surface 104 of the first frame is turned to advance to the front surface 102 of the first frame. The tension of the mesh 300 is not sufficient.

Next, as shown in FIG. 11, the front surface 202 of the second frame is coupled to the rear surface 106 of the first frame.

At this time, since the projecting portion 215 of the second frame is inserted into the recess 115 of the first frame to compress the mesh 300, a tension is applied to the mesh 300 to make it taut. Since the 202 and the rear surface 106 of the first frame are in close contact with each other, the mesh 300 is firmly fixed.

Since the protrusion 215 of the second frame penetrates the hole of the mesh 300 and is fastened to the recess 115 of the first frame, the protrusion 215 of the second frame can be strongly fixed while providing a tensile force to the mesh 300.

Meanwhile, the recess 115 of the first frame and the protrusion 215 of the second frame may be interchanged. That is, the protrusion may be formed in the first frame 100 and the recess may be formed in the second frame.

In addition, the mesh 300 is compressed and fixed between the convex portion 113 of the first frame and the recess portion 212 of the second frame, and between the concave portion 115 of the first frame and the protrusion 215 of the second frame. Compression-fixed, and once again compression-fixed between the side 104 of the first frame and the inner surface 208 of the second frame can be very strong fastening strength of the mesh (300).

Next, as shown in Figure 12, while fastening the first frame and the second frame with the second fixing means 500 and at the same time to secure the mesh 300, as an example of the second fixing means fastening using a bolt The method of fastening, the method of fastening using a screw, etc. are possible.

12 illustrates a case in which the first frame 100 and the second frame 200 are fastened by using the bolt 500, and the bolt 500 is the first frame 100 and the second frame 200. At the same time as fastening the mesh 300 is also fixed, so that the mesh can be strongly fixed once again.

The insert nut 150 may be formed in the fastening groove 120 of the first frame by insert molding technology, and since the bolt 150 is strongly coupled to the nut 150, the first frame 100 and the second frame. The fastening strength of the 200 can be increased.

The material of the first frame 100 may include at least one of polypropylene (PP), polyvinyl chloride (PVC), polyethylene (PE: polyethylene), polystyrene (PS), and the like.

In addition, it may be manufactured by injection molding, and as described above, in order to improve the fastening strength and durability of the first frame 100 and the second frame 200, nuts of different materials such as metals are put in an injection mold and injected together. The insert nut 150 may be formed through an insert molding method.

The material of the second frame 200 may be the same as or different from the first frame 100. For example, a polyamide resin may be used as the material of the second frame 200, such as nylon-6, nylon-66, nylon-610, nylon, nylon-612, nylon-11, nylon-12, or the like. Single polyamides and copolymers thereof or mixtures thereof, and depending on the application, addition of fibrous reinforcing agents, inorganic fillers, antioxidants, thermal stabilizers and antistatic agents is possible.

On the other hand, the above-described example has been described a case where the mesh fastening structure of the present invention is applied to the backrest, it can be applied to the seat plate, of course, can be applied to various fields having a mesh fastening structure such as a bed, stretcher as well as a chair. have.

As described above, the mesh chair of the present invention includes a first fixing means for fixing the mesh to the first frame and a second frame for fixing the mesh to the first frame and at the same time to fix the mesh to the first frame. 2 When the fixing means and the mesh fastening, the projection of the second frame is inserted into the concave portion of the first frame, thereby fixing the mesh and giving tension to the mesh, so that the mesh can be more firmly fixed and the mesh can be kept taut.

In addition, since the area of the mesh compressed between the first frame and the second frame is large, it is possible to fix the mesh more strongly.

In addition, the mesh chair of the present invention can increase the fastening force of the mesh by a simple mesh fastening structure to improve the durability and reliability, the simple fastening method has the effect of reducing the production cost, such as labor costs of the mesh chair. .

Although the present invention has been shown and described with reference to the preferred embodiments as described above, it is not limited to the above embodiments and those skilled in the art without departing from the spirit of the present invention. Various changes and modifications will be possible.

1 is a cross-sectional view showing a conventional mesh fastening structure.

2 and 3 are perspective views of the first frame and the second frame of the mesh chair back portion according to an embodiment of the present invention.

4 is a plan view of a rear surface of the first frame, and FIG. 5 is a cross-sectional view taken along line A-A 'of FIG.

FIG. 6 is a plan view of the front of a second frame according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along line BB ′ of FIG. 6.

8 is a perspective view illustrating various embodiments of a second frame protrusion.

Figure 9a is a perspective view of the backrest showing the mesh fastening state according to an embodiment of the present invention.

FIG. 9B is a side view of FIG. 9A viewed in the X direction. FIG.

10 to 12 are cross-sectional views showing a method of fastening a mesh according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: first frame 102: front of first frame

104: side of the first frame 106: rear of the first frame

111: first convex part 112: first frame main part

113: second convex portion 115: recessed portion

116: third iron 120: fastening groove

150: insert nut 200: second frame

202: front of the second frame 204: side of the second frame

206: rear of the second frame 211: inner convex portion

212: second frame recess 213: outer convex portion

215: protrusion 300: mesh

500: Bolt

Claims (8)

A first frame; First fixing means for fixing the mesh to the first frame; Second fixing means for fixing the mesh to the first frame and simultaneously fixing the second frame to the first frame; And Recesses and protrusions formed in corresponding portions of the first frame and the second frame to provide tension to the mesh Mesh fastening structure comprising a. The method of claim 1, The first fastening means is a mesh fastening structure, characterized in that takapin. The method of claim 1, The second fastening means is a mesh fastening structure, characterized in that the bolt. The method of claim 3, The bolt is a mesh fastening structure, characterized in that fastening to the insert nut formed in the first frame. The method of claim 1, The mesh is fixed to the back of the first frame by the first fixing means and the second fixing means, the mesh fastening structure, characterized in that the wrapping around the side of the first frame is disposed in front of the first frame. The method of claim 1, The first frame is a mesh fastening structure, characterized in that made of polypropylene. The method of claim 1, The second frame is a mesh fastening structure, characterized in that made of polyamide resin. A first frame; Takapin for fixing the mesh to the first frame; A bolt to fix the mesh to the first frame and to fix the second frame coupled to the first frame; And A chair, bed or stretcher having a mesh fastening structure comprising recesses and protrusions formed in corresponding portions of the first frame and the second frame to provide tension to the mesh.

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