KR101743501B1 - Mesh back of a chair which is easily attachable and detachable - Google Patents

Abstract

The convenient detachable mesh back plate chair of the present invention has a back frame 14 in which a top engaging portion 11 is formed at an upper rear portion and a lower engaging portion 17 is formed at a lower portion, A pair of vertical frames 31 and 32 vertically arranged and a pair of vertical frames 31 and 32 extending upward and downward from the mesh backing plate 10, And a lower fixed frame (35) connecting lower parts of the pair of vertical frames (31, 32) to each other, and the backrest frame (30) And the lower fixing frame 35 of the backrest frame 30 is engaged with the upper surface of the mesh backing plate 10 The lower engaging portion 17 of the lower fixing frame 35 is positioned on the front surface of the lower fixing frame 35 It characterized in that the bent coupling piece.

Description

A convenient removable mesh backboard chair {Mesh back of a chair which is easily attachable and detachable}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a chair having a mesh back plate capable of being attached to and detached from a chair backrest frame, and more particularly, The mesh back plate is easily removed from the mesh back plate.

Generally, the chair has a basic configuration of a backrest, a seat, and a leg.

Among them, the backrest of the chair is generally constructed by connecting the back plate to the backrest frame. In recent years, the back plate is often formed of a mesh having good ventilation.

However, the mesh used for the conventional backing plate is mainly made of cloth. The backing plate made of such a cloth mesh is formed by preliminarily forming a backing frame, covering the mesh with the frame, and tightening the backing frame. Then, the chair is assembled by assembling and assembling the back plate of the mesh made by the above into the backrest frame of the chair by screws or the like.

In this manufacturing method, since the mesh cloth covered on the backing frame must be stitched in a state of being pulled tightly, the workability is bad and the defect rate is high.

In addition, when the tension of the mesh is loosened or damaged during the use of the chair, the mesh must be separated and replaced. As a result, it is difficult for unskilled persons to replace the chair entirely.

Korean Public Utility Model No. 20-2009-0013172

SUMMARY OF THE INVENTION The present invention provides a chair having a mesh back plate that can be directly fixed to a back frame without needing a back plate for fixing a mesh in forming a back of a chair.

Another object of the present invention is to provide a convenient removable mesh backboard chair which can be easily attached to or removed from a precise position of a seat frame even when the backrest frame is attached to or detached from a backrest frame, .

Another object of the present invention is to provide a removable mesh backboard chair which simplifies the joining components between the backrest frame of the chair and the mesh backing plate, simplifies the production process of the product,

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above-mentioned object, a convenient removable mesh back plate chair according to the present invention includes a back plate frame having a top engaging portion formed at an upper rear portion thereof and a lower engaging portion formed at a lower portion thereof, And a lower fixing frame connecting the lower portion of the pair of vertical frames and the upper connection frame connecting the upper portions of the pair of vertical frames, Wherein the backrest frame is coupled with the upper coupling portion formed on the back surface of the back plate of the mesh, and the lower fixing frame of the backrest frame is coupled with the lower coupling portion of the back plate, And is folded back to the rear of the lower fixed frame .

In addition, the present invention may further include an upper coupling hole as an intermediary for coupling the vertical frame top of the backrest frame and the upper coupling portion formed on the rear surface of the mesh backing plate.

According to an embodiment of the present invention, an upper end of the vertical frame of the backrest frame is provided with a fitting protrusion, and an upper coupling portion of the mesh backing plate is provided with a hook portion having an engagement hole. And a hooking portion coupled to the hook and the hook can be formed.

Further, in the present invention, a plurality of lower fixing rods are protruded from the lower fixing frame of the backrest frame, and a fixing bar through-hole is formed in the lower fitting portion of the mesh backing plate at a position corresponding to the lower fixing rods, And the lower fixing rod may pass through the fixing bar through-hole when the engaging part and the lower fixing frame are engaged with each other.

In addition, the present invention may further comprise a fixing base protruding from the vertical frame of the backrest frame, and a fixing base inserting portion formed at a position corresponding to the fixing base on the back frame of the mesh backing plate.

According to the present invention, since the process of joining the backrest frame to the mesh backing plate does not require a complicated process such as stapling or screwing, it is possible to easily perform the operation, reduce the material cost, and shorten the working time Can be obtained.

Further, when the assembling between the parts is completed, the backrest frames are located at the correct positions with respect to each other on the mesh back plate, so that the non-expert can easily work and minimizes the difference in production quality between the workers.

In addition, when the mesh backing plate is dirty, it is convenient to remove and wash the backing plate. If the mesh backing plate is damaged unrecoverably, it can be easily removed and replaced, thereby achieving cost reduction and extending service life.

1 is a plan view of a back surface of a backrest according to the present invention
Fig. 2 is a back view of the back portion of the present invention
3 is an exploded perspective view showing the assembly structure of the present invention.
4 is an exploded perspective view showing the present invention in a cross-
Fig. 5 is a detailed view of the joining area between the mesh back plate and the upper coupling hole.
Fig. 6 is a detailed view of a joint portion between the backrest frame and the upper engagement hole
7 is a side view

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detachable mesh backboard chair according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the thicknesses of the lines, the sizes of the components, and the like shown in the drawings may be exaggerated or reduced for convenience in order to more clearly understand the structure of the present invention.

The terms used for describing the present invention are terms defined in consideration of the functions of the present invention. However, since these terms can be expressed in other terms depending on the intention or custom of the designer or the user, the definition of these terms used in the present invention should be made in consideration of the contents described throughout the specification.

It is to be understood that within the scope of the present invention, directional terms such as 'top', 'bottom', 'front', 'back', 'left', 'right', 'front', 'front', 'rear' Quot; is based on the orientation of the disclosed drawing (s). And since the elements of the embodiments of the present invention can be positioned in various orientations, the directional terminology is used for illustrative purposes and not limitation.

In the case where the constituent elements used in the present invention are referred to as being 'connected', 'coupled' or 'contracted', the 'connected', 'coupled' or 'contracted' As used herein.

In the following description, well-known functions or constructions are not described in detail since they would unnecessarily obscure the gist of the invention.

Referring to FIGS. 1 and 2, the detachable mesh backrest chair according to the embodiment of the present invention can be divided into a mesh backing plate 10 and a backrest frame 30. In addition, the configuration of the fixed band 50 can be further added.

Referring to FIG. 2, the mesh backing plate 10 is integrally formed with a backing frame 14 serving as a rim and a mesh portion 13 formed in a mesh shape inside the backing frame 14.

Since the mesh backing plate of the present invention is subject to bending deformation or stretching deformation when assembled, it is preferable that the mesh backing plate is integrally formed by injection molding using a synthetic resin having good elasticity, flexibility and stretchability. A representative synthetic resin having such properties is TPE (Thermoplastic Elastomer).

The mesh backing plate 10 has an upper joint portion 11 formed at an upper portion of the rear surface thereof and a lower joint portion 17 formed at a lower portion thereof.

Since the upper engaging portion 11 is slightly spaced from the surface of the mesh portion 13, a bag-like inner space is formed as shown in FIGS. At the free end of the upper engaging portion 11, a hook portion 12 is formed with an engaging hole 12a.

As shown in FIG. 3, a cut-out portion 18 is formed in the back plate frame 14 at the left and right sides of the lower fitting portion 17 of the mesh backing plate 10. The fixing frame insertion portion 15 is formed in the backing frame 14 on the side of the incision portion 18 and the fixing frame insertion hole 16 formed in the fixing frame insertion portion 15 with an opening toward the incision portion 18, .

4, the lower engaging portion 17 formed at the lower portion of the mesh backing plate 10 has an L-shaped cross-sectional structure and is a part of the backing frame 14.

Shaped band groove 19 is formed in the lower coupling portion 17 toward the bottom of the 'L' shape. A plurality of fixing bar through holes 20 are formed in the belt groove 19 have. Since the fixing bar through-holes 20 are formed at positions corresponding to the lower fixing rods 39 formed in the lower fixing frame 35 described later, the lower fixing frame 35 and the lower fixing frame 35 The lower fixing bar 39 passes through the fixing bar through-hole 20 and is exposed to the outside at a predetermined height.

The fixed band 50 shown in FIG. 2 and FIG. 3 has a long band-like structure that is manufactured to match the shape of the band groove 19. A band hole (51) penetrating the upper and lower surfaces is formed in the fixed band (50).

The band hole 51 is a hole through which the lower fixing bar 39 penetrates through the fixing bar through hole 20 and is exposed to the outside at a predetermined height. Position, size and number.

The fixing band 50 is inserted into the band groove 19 while the lower fixing bar 39 is inserted into the band hole 51. When a screw (not shown) or the like is inserted into the hollow portion formed in the lower fixing bar 39, the screw head pushes the fixing belt 50 around the lower fixing bar 39 together, so that the fixing belt 50 is peeled off .

1 and 2, the backrest frame 30 includes a pair of vertical frames 31 and 32 vertically installed and an upper connection frame (not shown) connecting the upper portions of the pair of vertical frames 31 and 32 33 and the lower fixed frame 35 connecting the lower parts of the pair of vertical frames 31, 32, so that the shape of the lower fixed frame 35 is similar to that of the "V".

4 and 6, a fitting protrusion 34 is formed in the shape of a hook at the upper end of the vertical frames 31 and 32 facing the upper engaging portion 11 of the mesh backing plate 10 And guide grooves 34a are formed on both sides of the fitting protrusions.

On the vertical frames (31, 32) of the backrest frame (30), a fixing base (36) in the form of a triangular blade is protruded. The shape of the fixing table can be variously changed into a rod shape or a rectangular shape.

The fixing frame 36 is formed at a position corresponding to the fixing frame insertion portion 15 formed on the backing frame 14 of the mesh backing plate 10. In the present invention, And is formed in the vicinity of the portion where it meets the stationary frame 35. 2, the vertical frame 32 is fitted to the cutout 18 of the mesh backing plate 10 at a portion where the lower fixed frames 35 meet with each other, This is because the fixing base insertion portion 15 is formed in the frame 14.

4, the lower fixing frame 35 of the backrest frame 30 includes a wide and long plate-like inner contact piece 37 extending obliquely toward the rear side and an inner contact piece 37 located below the inner contact piece 37 And a plurality of lower reinforcing fingers 38 projecting in a forward direction toward the front side and a protruding box shape, and the lower connecting pin 60 is inserted A lower connection portion 40 is formed.

The lower fixing frame 35 of the backrest frame 30 is joined to the inner surface of the lower joint portion 17 of the mesh backing plate 10 with a bent cross-sectional structure. The lower fixed frame 35 of the backrest frame 30 is formed so that the inner contact piece 37 of the lower fixed frame 35 is engaged with the inner side of the mesh backing plate 10 when the lower fitting portion 17 of the mesh backing plate 10 is assembled. The lower fixing rod 39 in the form of a hollow pipe is in contact with the inner surface of the lower engaging portion 17 and passes through the fixing rod through-hole 20.

The lower connector 60 is a component that connects the seat frame (not shown) of the chair and the back frame 30 to each other.

The upper coupling portion 11 formed on the upper end of the vertical frames 31 and 32 of the backrest frame 30 and the upper coupling portion 11 formed on the rear surface of the mesh backing plate 10, A sphere 25 is used.

The configuration and coupling relationship of the upper coupling hole 25 will be described in detail with reference to Figs. 5 to 7. Fig.

The upper coupling hole 25 is formed at its center with a projection insertion hole 29 into which the fitting projection 34 is inserted and a hook engagement portion 28 which is coupled to the hook portion 12.

7, an annular inserting portion 28a is formed between the annular engaging portion 28 and the engaging piece 26. The annular engaging portion 28a is formed in the annular groove 28, Or the like.

Therefore, when the upper engaging portion 25 is engaged with the upper engaging portion 11, the annular portion 12 is seated on the annular inserting portion 28a and hooked on the hook receiving portion 28, so that the annular portion 12 is not easily released.

The protrusion insertion hole 29 of the present invention is formed of a rectangular groove having a size such that when the insertion protrusion 34 is inserted, Therefore, when the fitting protrusion 34 is inserted into the protrusion insertion hole 29, the bent end of the hook-shaped fitting protrusion 34 passes through the protrusion insertion hole 29, It gets caught.

A lower end extending piece 27 is extended to the lower side of the hook fastening portion. A guide protrusion 27a is preferably protruded from both side surfaces of the lower end extending piece 27. [ The guide protrusion 27a is engaged with the guide groove 34a shown in FIG. 6, and functions to prevent the upper coupling hole 25 from swinging left and right.

The fitting piece 26 extending to the upper rear side of the hooking portion 28 is inserted into a bag-shaped inner space formed between the upper engaging portion 11 and the mesh portion 13. At this time, it is preferable that the shape of the fitting piece 26 is formed to be the same according to the shape of the inner space so that it can not move in the inner space after the coupling.

Hereinafter, a method for assembling the removable mesh back plate chair according to the embodiment of the present invention will be described.

First, as shown in FIG. 5, the upper coupling hole 25 is coupled to the upper coupling portion 11 formed at the rear upper surface of the mesh backing plate 10.

To this end, if the lower end extended piece 27 of the upper coupling hole 25 is first passed through from the inside to the inside of the coupling hole 12a and then the hooking portion 28 is pulled strongly, The hooking portion 28 is passed while the hooking portion 12 is stretched and then the hooking portion 12 is seated in such a manner that the hooking portion 28a is fitted into the hooking portion 28a.

As described above, since the mesh backing plate 10 of the present invention is injection-molded using synthetic resin having good elasticity, flexibility and stretchability, like TPE material, elastic expansion and contraction of the ring portion 12 is facilitated.

Then, the upper coupling hole 25 is rotated to adjust the fitting piece 26 so as to be properly positioned in the inner space of the upper coupling portion 11. In this manner, the upper coupling holes 25 are respectively coupled to the upper coupling portions 11 on both sides of the rear upper surface of the mesh backing plate 10.

Next, the upper end of the vertical frame (32) of the backrest frame is engaged with the upper coupling hole (25) coupled to the upper coupling portion (11).

5, the hook-shaped insertion protrusion 34 is passed through the insertion hole 29. At this time, the hook-like insertion protrusion 34 is inserted into the insertion hole 29 having the protrusion insertion hole 29 formed with the rectangular- Shaped end of the fitting protrusion 34 penetrating the protrusion insertion hole 29 is caught by the rear surface of the fitting piece 26. The hook protrusion 34 is formed to have the same size as the body portion of the fitting piece 26. [

In this state, since the guide protrusion 27a is fitted in the guide groove 34a, the upper end of the vertical frame 32 of the backrest frame and the upper engaging portion 11 are prevented from moving with respect to each other, do.

As a result of the assembling operation, the upper engaging portion 11 formed on the upper end of the vertical frames 31 and 32 of the backrest frame 30 and the upper surface of the mesh backing plate 10, And are firmly coupled to each other.

Next, as shown in Fig. 3, the fixing member 36 of the backrest frame 30 is inserted into the fixing member insertion portion 15 of the mesh backing plate 10. At this time, the lower engaging portion 17 of the mesh backing plate 10 is folded up to ride over the lower fixed frame of the backrest frame 30 and then to the rear face of the lower fixed frame, 20 are assembled by fitting the lower fixing rods 39 of the backrest frame 30 therebetween.

As a result of this assembly, the portion where the vertical frame 32 of the backrest frame 30 and the lower fixed frame 35 meet each other is fitted into the cutout portion 18 of the mesh backing plate 10.

As described above, since the mesh backing plate 10 is a highly flexible material, the lower joining portion 17 can be easily bent.

Then, as shown in Fig. 3, the fixed band 50 is attached to the band groove 19. The fixing band is for preventing the lower fixing rods 39 of the backrest frame 30 from escaping from the fixing rod through holes 20 of the lower fitting portion 17. [

More specifically, the entirety of the fixing band 50 is seated on the band groove 19 while the lower fixing bar 39 is fitted into the band hole 51 of the fixing band 50, A screw (not shown) or the like is forcibly inserted and tightened into a hollow portion formed in the rod 39.

The screw head thus tightly covers the fixing band 50 around the lower fixing bar 39 and presses the fixing belt 50 together. Thus, the fixing belt 50 is not peeled off, and the lower fixing bar 39 comes into contact with the fixing bar 50, (20) is prevented from escaping.

4, one end of the lower connector 60 is inserted into the lower connection portion 40 on the front side of the lower fixed frame 35 and the other end of the lower connector 60 is connected to the frame . By this connection operation, the backrest frame is raised and joined at one end of the seat.

When separating from the mesh backing plate 10 and the backrest frame 30, work in the reverse order of the above assembling procedure.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention should be understood only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention if they are apparent to those skilled in the art.

10: Mesh backing
11: upper coupling portion 12:
12a: latching hole 13: mesh portion
14: backing frame 15:
16: fixed base inserting hole 17:
18: incision section 19: belt groove
20: Fixing rod through-hole
25: upper coupling hole
26: fitting piece 27: lower end extending piece
27a: guide projection
28: Ring hook portion 28a: Ring hook portion
29: projection insertion hole 30: backrest frame
31, 32: vertical frame 33: upper connection frame
34: insertion protrusion 34a: guide groove
35: lower fixing frame 36:
37: inner contact piece 38: lower support
39: lower fixing rod 40: lower connection portion
50: fixed band 51: band hole
60: Lower connector

Claims (5)

And a mesh part 13 formed in a mesh shape inside the backing frame 14 is formed integrally with the backing frame 14. The backing frame 14 is formed with an upper joining part 11 at the rear upper part and a lower joining part 17 at the lower part, A mesh backing plate 10 formed of
An upper connection frame 33 connecting upper and lower portions of the pair of vertical frames 31 and 32 and an upper connection frame 33 connecting the upper portions of the pair of vertical frames 31 and 32, And a lower fixed frame (35) connecting the lower portion of the backrest frame (30)
The upper joining portion 11 formed on the back surface of the mesh backing plate 10 is coupled to the upper ends of the vertical frames 31 and 32 of the backrest frame 30 and the lower fixing frame 35 of the backrest frame 30 is coupled Wherein the lower engaging portion 17 is bent toward the back of the lower fixing frame 35 so as to be positioned on the front surface of the lower engaging portion 17 of the mesh backing plate 10.
The method according to claim 1,
And an upper coupling hole 25 as an intermediate medium for coupling the upper ends of the vertical frames 31 and 32 of the backrest frame 30 and the upper coupling portion 11 formed on the rear surface of the mesh backing plate 10 Convenient removable mesh backboard chair.
The method of claim 2,
A fitting protrusion 34 is formed on the upper ends of the vertical frames 31 and 32 of the backrest frame 30,
The upper joint portion 11 of the mesh backing plate 10 is formed with a hook 12 having an engagement hole 12a,
Wherein the upper engaging hole 25 is formed with a protrusion insertion hole 29 into which the fitting protrusion 34 is inserted and an annular fitting portion 28 coupled with the annular portion 12. [ Back chair.
The method according to claim 1,
The lower fixed frame 35 of the backrest frame 30 has a plurality of lower fixed rods 39 protruding therefrom,
The lower connecting portion 17 of the mesh backing plate 10 is provided with a fixing bar through hole 20 at a position corresponding to the lower fixing bar 39,
Wherein the lower fixing rod (39) penetrates through the fixing rod through-hole (20) when the lower engaging part (17) and the lower fixing frame (35) are engaged with each other.
The method according to claim 1,
(36) formed on the vertical frames (31, 32) of the backrest frame (30)
And a fixing table insertion part (15) formed at a position corresponding to the fixing table (36) on the backing frame (14) of the mesh backing plate (10).

Images