KR20160004165U - Collapsible chair made by synthetic resins - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a foldable chair, and more particularly, to a foldable chair which includes a rear frame having a vertical bent portion having a hinge coupling portion at both sides of a lower horizontal portion having at least two non- A front frame having a back plate formed at an upper end thereof, a central engaging portion formed at a center thereof so as to be rotatable with a hinge engaging portion, and a horizontal connecting portion formed at a lower end thereof; And a seat plate disposed on the inner side of the rear frame and the front frame and rotatably coupled to the coupling unit. The rear frame, the front frame, and the seat plate are made of a synthetic resin composition Lt; / RTI >
According to the present invention, it is possible to increase the strength and reduce the weight by forming the frame constituting the folding chair by injection molding with a synthetic resin composition, and to cut down the manufacturing time and manufacturing cost by omitting the cutting and bending process after manufacturing the conventional iron There is an effect that can be saved.

Description

{Collapsible chair made by synthetic resins}

The present invention relates to a folding chair, and more particularly, to a synthetic resin injection folding chair capable of increasing the strength while reducing weight by injection molding a frame constituting a chair with a synthetic resin composition.

Generally, chairs are widely used in everyday life, and chairs can be classified into chairs used in the classrooms of the elementary and middle schools or colleges, and chairs used temporarily in the outdoors.

 In addition, the chairs used at the school are to be kept at all times, so folding chairs are universally used. Folding chairs are often used for various occasions such as outdoor theaters and outdoor music venues.

Hereinafter, the folding chair will be described in more detail. The folding chair comprises a front and rear frame, a backrest mounted on the front frame for supporting the user's back, and a backrest rotatably mounted on the front and rear frames, .

However, conventional folding chairs are not only complicated in the manufacturing process, but also have difficulties in combining the products.

That is, the conventional folding chair is manufactured by manufacturing a long iron having a predetermined diameter and a length, cutting the iron according to the respective shapes, and then bending the iron, so that the manufacturing process is complicated, There is a problem that the product is defective or damaged during the process.

In addition, the conventional folding chair can be manufactured by forming the product in a synthetic resin or a metal material in accordance with the intended use (backrest, seat, finishing cap, sliding bearing) on the iron even after forming the frame through the long iron, There is a problem in that the manufacturing time is long and a large number of parts are required, thereby increasing the cost of the product.

In addition, since the conventional folding chair is formed of a structure in which various components are combined with iron, a plurality of parts are required, and a small-sized component is lost or damaged during assembly.

Korean Registered Utility Model No. 20-0389413 Korean Patent Laid-Open Publication No. 2013-0028631

It is an object of the present invention to provide a synthetic resin injection folding chair capable of increasing strength and reducing weight by injection molding a frame constituting a chair with a synthetic resin composition.

It is another object of the present invention to provide a synthetic resin injection folding chair which can firmly withstand a load of a user by forming a central coupling portion in which a high strength pipe is inserted into the center of a front frame coupled with a hinge coupling portion constituting a rear frame.

Also, it is an object of the present invention to provide a synthetic resin injection folding chair which is formed by bending a reinforcement frame connecting a front frame and an armrest so that the elbow can be comforted when the user seats with the seat.

In order to achieve the above object, the present invention provides a synthetic resin injection folding chair comprising: a rear frame having a vertical bent part formed at both sides of a lower horizontal part having at least two non-slip parts; A front frame having a back plate formed at an upper end thereof, a central engaging portion formed at a center thereof so as to be rotatable with a hinge engaging portion, and a horizontal connecting portion formed at a lower end thereof; And a seat plate disposed on the inner side of the rear frame and the front frame and pivotally coupled to the coupling unit. The rear frame, the front frame, and the seat plate are made of a synthetic resin composition Lt; / RTI >

In addition, a high strength pipe may be inserted into the central joint part of the front frame coupled with the hinge coupling part, and then injection molded using a synthetic resin composition.

The horizontal connection part of the front frame may be connected to the lower end and the non-slip part may be formed at an interval.

Further, the upper end of the front frame may be rotatably mounted on the armrest toward the front, and the reinforcing frame may be rotatably mounted on the armrest and the hinge coupling portion.

In addition, a fitting groove is formed at the upper end of the vertical bent portion constituting the rear frame, and a buffer member having a fitting protrusion formed of any one of rubber, silicone, and synthetic resin is detachably attached to the fitting groove. have.

According to the present invention, it is possible to increase the strength and reduce the weight by forming the frame constituting the folding chair by injection molding with the synthetic resin composition, and to cut the manufacturing time and manufacturing cost by omitting the cutting and bending process after manufacturing the conventional iron There is an effect that can be saved.

In addition, it is possible to reduce the manufacturing time and cost of the parts while reducing the number of parts, as well as to prevent the parts from being damaged or damaged It is possible to replace only the corresponding parts at the time of breakage, thereby reducing the maintenance cost.

Further, a central joint portion is formed at the center of the front frame, which is coupled with the hinge coupling portion constituting the rear frame, into which a high-strength pipe is inserted, so that the user can bear the load and the load applied to the connection portion.

Further, the reinforcement frame connecting the front frame and the armrest is formed to be bent so that the elbow can be comfortably seated in the seat by the user.

1 is a perspective view showing a folding chair according to the present invention;
2 is a side view showing a folding chair according to the present invention;
Figs. 3 (a) and 3 (b) are partially enlarged views showing an embodiment of a rear frame constituting a folding chair according to the present invention; Fig.
Fig. 4 is an enlarged view showing a central engaging part of a front frame constituting a folding chair according to the present invention; Fig.
FIG. 5 is a perspective view showing another embodiment of a folding chair according to the present invention; FIG.
Figure 6 is a side view of Figure 5 according to the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Like parts are designated with like reference numerals throughout the specification.

FIG. 1 is a perspective view showing a folding chair according to the present invention, FIG. 2 is a side view showing a folding chair according to the present invention, and FIGS. 3 (a) and 3 Fig. 4 is an enlarged view showing a central engaging part of a front frame constituting a foldable chair according to the present invention. Fig. 4 is an enlarged view of a central engaging part of a folding chair according to the present invention. 5 is a perspective view showing another embodiment of the foldable chair according to the present invention, and Fig. 6 is a side view of Fig. 5 according to the present invention.

The foldable chair 10 designed in this embodiment is formed by injection molding a synthetic resin composition generally divided into a rear frame 20, a front frame 30, and a seat 40.

That is, the foldable chair 10 designed in the present invention is formed by injection-molding the rear frame 20, the front frame 30 and the seat 40 with a synthetic resin composition, thereby improving the strength while reducing the weight.

The rear frame 20 serves as a support at the rear of the foldable chair 10.

The vertical frame 22 is symmetrically formed on both sides of the rear frame 20 with respect to the lower horizontal portion 21 formed at the center of the frame 20, A hinge engaging portion 23 is formed to protrude from the upper end of the hinge portion.

That is, the rear frame 20 integrally injection-molds the vertical bent portions 22 having the hinge joint portions 23 at both ends of the lower horizontal portion 21 formed in a predetermined section.

At this time, the hinge coupling part 23 is formed with a hinge coupling hole 23a so as to be coupled to the front frame 30 and the seat 40 through fasteners such as bolts, screws, and the like.

In addition, the lower horizontal portion 21 is formed with a non-slip portion 24 at intervals so as to prevent slipping when contacting the ground.

At this time, since the nonslip part 24 is formed integrally with the rear frame 20 different from the conventional folding chair, it is possible to reduce the manufacturing cost while preventing the parts from being lost, It is possible to obtain an advantage that it can be formed by changing.

The buffer member 25 may be formed integrally with the upper end of the vertical bending portion 22 as shown in FIG. 3 (a) so as to cope with frequent friction and damage due to an external force.

3 (b), the vertical bending portion 22 is made of a rubber, a silicone, or a synthetic resin so as to cope with frequent frictional damage caused by an action of an external force, And can be mounted so as to be detachable.

A fitting protrusion 25a is formed at the lower end of the cushioning member 25 so as to be replaced according to the state of the cushioning member 25, So that it can be mounted.

The front frame 30 may be formed in various shapes depending on environment, purpose, and the like, and may be formed into a rectilinear shape or a straight or curved shape.

Here, the front frame 30 is formed so as to be bent so as to be directed downward at an upper portion thereof.

The front frame 30 is formed with a back plate 32 at an upper end 31 thereof and a central coupling portion 34 at a center thereof and a horizontal connection portion 36 at a lower end 35 thereof.

That is, the front frame 30 is formed by bending a frame formed in a rectangular solid shape or a hollow shape toward the bottom, and a back plate 32 And a central joint portion 34 is formed on both sides of the center at the center so as to be engaged with the hinge coupling portion 23 of the rear frame 20. The lower end portion 35 has a horizontal connection portion 36 for supporting the lower portion And is integrally molded.

A high strength pipe 37 is inserted into the central engaging portion 34 of the front frame 30 to be reinforced by the hinge engaging portion 23 of the rear frame 20.

That is, the high-strength pipe 37 is inserted into the central joint portion 34 and injected with the synthetic resin in case the hole is formed in the injection-molded product and the strength is weakened.

The high strength pipe 37 is mounted at the center of the hinge coupling part 23 of the rear frame 20 so as to be reinforced with the strength of the material and transmitted through the seat 40 So that the load and the load transmitted to the connecting portion can be firmly supported.

The horizontal connection portion 36 of the front frame 30 is connected to the lower end 35 and the lower end 35 of the front frame 30 as shown in FIG. And is formed between the lower end (35) and the lower end (35) of the front frame (30).

At this time, since the non-slip portion 38 is formed integrally with the front frame 30 differently from the conventional folding chair, it is possible to reduce the manufacturing cost while preventing the components from being lost, It is also possible to obtain an advantage that it can be formed by changing.

The seat 40 is rotatably mounted on the inside of the rear frame 20 and the front frame 30.

A through hole 42 is formed at a portion corresponding to the hinge coupling portion 23 and the central coupling portion 34 so as to be coupled with a fastener such as a bolt or a screw. do.

That is, the seat 40 is a part where the user seats, has a predetermined size, and is operated in conjunction with rotation of the frames 20, 30.

Here, the seat 40 is different from the conventional folding chair in that the frame and the seat supporting the seat 40 are injection-molded integrally with synthetic resin, so that it is possible to easily manufacture a desired shape while reducing the weight.

Next, an armrest 50 may be rotatably mounted on an upper end of the front frame 30 constituting the foldable chair 10.

At this time, it is preferable that a high-strength pipe is mounted on the connection part of the front frame 30 coupled with the armrest 50 so that holes are formed in the injection-molded product to prevent the strength from being weakened.

The armrest 50 has a predetermined width and a predetermined length. An arm-linkage hole 52 is formed at a portion of the armrest 50 to be coupled with the front frame 30 so as to be coupled with a fastener such as a bolt or a screw.

A reinforcing frame 54 is formed on the hinges 22 of the armrests 50 and the rear frame 20. The reinforcing frame 54 is made of a metal material As shown in Fig.

Here, the reinforcement frame 54 is formed by bending the seat plate 40 so as to comfortably hold the elbow when the user seated.

The folding chair constructed as described above will be described with reference to the following embodiments.

First, a vertical bending portion 22 is formed symmetrically on both sides of a lower horizontal portion 21 having a predetermined diameter or diameter and formed at the center, and the upper end of the vertical bending portion 22 is provided with a hinge- And a rear frame 20 having a non-slip portion 24 formed thereon is formed by injection molding using a synthetic resin composition.

The upper plate 31 is formed with a back plate 32 and the central joining portion 34 is formed at the center and the horizontal connection portion 34 is formed at the lower end 35 36 are formed by injection molding using a synthetic resin composition.

At this time, a high strength pipe 37 is inserted into the central joint portion 34 and injection molding is performed using a synthetic resin composition.

The seat 40 has a predetermined size and a through hole 42 is formed at a portion corresponding to the hinge coupling portion 23 and the central coupling portion 34 so as to be coupled with a fastener such as a bolt or a screw. Is injection-molded using a synthetic resin composition.

The armrest 50 having a predetermined width and length and having an armrest engaging hole 52 to be engaged with a fastener such as a bolt or a screw is coupled to the front frame 30 by injection molding using a synthetic resin composition, do.

Next, the front frame 30 is disposed in front of the rear frame 20 and then the seat 40 is disposed inside the frames 20 and 30. Then, the hinges 20 and 30, which constitute the frames 20 and 30, A fastener such as a screw or a bolt is fastened to the engaging part 23, the central engaging part 34 and the seat 40.

When the armrest 50 is mounted on the upper end of the front frame 30 and the reinforcing frame 54 bent in the hinge engaging portion 22 of the armrest 50 and the rear frame 20 is mounted, (10) is completed.

Herein, the assembly order of the folding chairs can be configured differently from the above.

At this time, a known spacing maintenance may be inserted into the connection space between the frames 20 and 30 and the seat 40, and a detailed description thereof will be omitted.

Next, when the foldable chair 10 is to be used, the front frame 30 is rotated around the hinge engaging portion 23 and the central engaging portion 34 constituting the frames 20 and 30 do.

At this time, the seat 40 located inside the frames 20 and 30 extends in the horizontal direction, and the upper end of the rear frame 20 supports the central rear surface of the front frame 30.

When the foldable chair 10 is to be stored, the frames 20 and 30 are moved toward the inside with the hinge engaging portion 23 and the central engaging portion 34 constituting the frames 20 and 30 as the center Turn it on.

At this time, the seat 40 located inside the frames 20 and 30 is folded in the vertical direction.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the present invention Should be interpreted as being included in.

10: folding chair, 20: rear frame,
21: lower horizontal portion, 22: vertical bent portion,
23: hinge engaging part, 24: non-slip part,
30: front frame, 31: upper,
32: back plate, 34: central coupling portion,
35: lower end, 36: horizontal connection portion,
37: high-strength pipe, 38: anti-slip part,
40: seat, 50: armrest.

Claims (5)

A rear frame having a vertical bent part formed at both sides of a lower horizontal part having at least two non-slip parts, the hinge having a hinge part;
A front frame having a back plate formed at an upper end thereof, a central engaging portion formed at a center thereof so as to be rotatable with a hinge engaging portion, and a horizontal connecting portion formed at a lower end thereof; And
And a seat plate disposed on the inner side of the rear frame and the front frame and rotatably coupled to the coupling unit,
Wherein the rear frame, the front frame, and the seat are injection-molded with a synthetic resin composition so as to increase the strength while reducing weight.
The method according to claim 1,
Wherein a high strength pipe is inserted into a central joint part of a front frame coupled to the hinge coupling part, and then injection molding is performed using a synthetic resin composition.
The method according to claim 1,
Wherein the horizontal connection part of the front frame is connected to the lower end, and the non-slip part is formed at an interval therebetween.
The method according to claim 1,
Wherein the upper end of the front frame is rotatably mounted on the armrest in a forward direction and the reinforcing frame is rotatably mounted on the armrest and the hinge coupling part.
The method according to claim 1,
A shock absorbing member having a fitting protrusion formed of any one of rubber, silicone, and synthetic resin is detachably mounted on the upper end of the vertical bent portion constituting the rear frame, Plastic injection folding chair.

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