KR200191783Y1 - Fixture for backrest of chair - Google Patents

Abstract

The present invention relates to a chair back fastener that is attached to the back of the chair back.

Chair back fastener of the present invention is made of a high elastic material, the neck-shaped hinge body 13, 13 'extends from both sides of the center body 12, and formed at the end of each hinge body 13 (13') A fastener body 11 of one body to which the supports 14 and 14 'are integrally coupled, and a cover member 16 of a' ┗┛ 'type cross section surrounding the lower body 12 of the fastener body 11. And bolt fasteners 15 formed of protrusions 17 protruding upward from the bottom of the cover member 16 and having bolt holes 17a formed at the center thereof, and both supports 14 of the binding body 11. (14 ') is formed of a fixed bracket (18, 18') of the '┗┛' type cross section is provided with a bolt hole (18a, 18a ') in the center of the bottom surface.

At this time, the bolt fastener 15 and the cover member 18, 18 'is made of a hard synthetic resin or metal such as nylon or ABS resin.

The chair back fastener of the present invention simplifies the manufacturing process by unifying various complex bonding processes for fixing and fixing the body and each support by the hinge as in the prior art, as well as the body and the support made of a hard synthetic resin and the high elasticity as in the prior art. Since the hinge body of the material does not need to be bonded, there is an advantage that the color of the binder body can be realized in various ways by forming the binder body without removing carbon.

Description

Fixture for backrest of chair}

The present invention relates to a chair back fastener that is attached to the back of the chair back, more specifically, the body fixed to the back of the chair and the support attached to both ends is formed of a highly elastic rubber material integrally molded, It is a structure in which a rigid cover member is wrapped and contacted on the outer circumferential surface of the lower end of the body and both ends of the support body, and the body and the support body are composed of an integral elastic material, which is not only firm but also requires no additional bonding process. It is about a chair back fastener so that it can be simplified.

In general, the chair back is a general disadvantage that the user can not comfortably support the back according to the user's physical characteristics or sitting posture because it is coupled so that the user always leans backward only regardless of the angle or direction. have.

Therefore, problems such as office workers or students who sit for a long time easily feel fatigue and cause problems in the development of the spine in the growing students.

Due to the above problems, in recent years, when a user sits on a chair and leans on a backrest, predetermined elastic members are combined to allow the user to freely flow and flip in a corresponding direction according to an individual's physical characteristics or leaning angle and direction. It is used.

As one of the elastic members, a binding device manufactured by connecting a body made of a hard synthetic resin and a support of both ends with a high elastic rubber material is widely used, and the structure of the binding device will be described based on the drawings shown below. same.

First, Figure 1 is a perspective view of a conventional chair back restraint, Figure 2 is a cross-sectional view of the conventional back rest coupling.

As shown, the conventional chair back fastener 1 is a body (2) which is installed on the back support object of the chair, and the support (3a) attached to both ends of the body (2) attached to the chair back (B) (3b) and the highly elastic hinge bodies (4a) (4b) for integrally connecting the supports (3a) and (3b) to both ends of the body (2), respectively.

The body (2) and each support (3a, 3b) at both ends are made of a hard synthetic resin and the like, and bolt holes (5a) (5b) in the center to be fixed on the back support and back (B) back, respectively Formed.

In addition, the hinge body (4a) (4b) connecting the body (2) and each support (3a) (3b) is formed of a rubber material with high elasticity and both ends of each of the hinge (4a) (4b) It is a structure that is firmly adhesively fixed on one side of the body (2) and the support (3a, 3b).

In addition, the conventional chair back fastener 1 is installed on the chair back support BC of the chair by a bolt drawn through the bolt hole 2a in the center of the body 2, and the supports 3a and 3b. They are coupled on the back of the backrest B by bolts fastened through the respective bolt holes 5a and 5b.

The singer binding device 1 having such a structure is joined by hinges 4a and 4b adhesively fixed to both ends of the body 2, and the supports 3a and 3b fixed on the backrest B are By the action of the hinges (4a) (4b) bent by a constant pressure it is made of a structure that can flow in any direction.

Conventional chair back fastener (1) having the structure as described above is the hinge body (4a) of the body 2 and the support body (3a) (3b) of the rectangular box formed of a separate member using a hard synthetic resin material (B) to make the rigid body (2) and the support (3a) and (3b) securely join at both ends of the hinges (4a) and (4b) of elastic material. Many problems in the process are pointed out.

In addition, the hinge bodies 4a and 4b, which are the constituent members of the fastener 1, have carbon inside thereof to facilitate adhesion of the hard body 2 and the support members 3a and 3b to both sides thereof. Because of the material contained, the color itself of the entire binding device 1 could only be composed of black.

Then, in order to simplify the complicated manufacturing process of the binding port 1 as described above, the body of the binding port 2 and each support (3a) (3b) composed of an integral elastic material to be made of a body by injection molding Although it can be manufactured, this may cause a disadvantage that the bolt hole is loosened when the fastener (1) is fixed to the back of the back, the bolt hole is loosened and the binding port is easily separated when moving the backrest left and right.

Therefore, the present invention has been devised to solve the above-mentioned disadvantages and problems pointed out in the conventional chair back fastener, and each support body is fixed by a hinge body to the body of the fastener and its both ends by one injection molding. A hard cover member having a bolt hole in the center and having a protrusion protruding upward is inserted through the insertion hole of the body of the center of the fastener, and is identical on the outer peripheral surface of the lower end of each support at both ends of the fastener. The cover member of the material is attached to simplify the complicated process such as the conventional high-frequency heating, and to provide a more robust chair back fasteners, the purpose of the present invention.

In addition, another object of the present invention is to not only need a separate process for bonding the support body by molding the hinge body for fixing the body and each support of both ends is molded into one body by injection using the same material of high elasticity Since the inclusion of carbon for adhesion is unnecessary, it is possible to improve the design aesthetics when combined with the back of the chair by configuring the binding itself in various colors.

1 is a perspective view of a conventional chair back fastener.

Figure 2 is a cross-sectional view at the back of the conventional binding.

Figure 3 is a perspective view of the combination chair backrest design of the present invention.

Figure 4 is a partial cutaway cross-sectional view of the chair back fastener of the present invention.

Figure 5 is a side cross-sectional view of the chair back fastener of the present invention.

Figure 6 is a perspective view of another embodiment of the chair back fastener of the present invention.

Figure 7 is a perspective view showing another embodiment of the chair back fastener of the present invention.

Figure 8 is a perspective view showing another embodiment of the chair back fastener of the present invention.

((Explanation of symbols for main parts of drawing))

11.Body Body 12.Body

13,13 '. Hinge 14,14 '. Support

15. Bolt Fasteners 17. Protrusions

18,18 '. Retention Bracket 18a, 18a '. Bolt ball

The object of the present invention is a hinge body and a support body coupled to the hinge and the backrest formed on both ends of the body and the body is installed on the back support object, and both sides cover on the outer peripheral surface of the body of the binder body Achieved by a structure consisting of a bolt fastener having a protrusion formed to protrude from the center of the bottom surface and a fixing bracket having a '┗┛' cross-sectional shape surrounding the lower outer circumferential surface of each support forming both ends of the fastener body do.

The chair back fastener of the present invention is simple without requiring separate bonding process of each member by making each member constituting the fastener main body are made of the same material with high elasticity and manufactured in a single process by injection molding. There is a technical feature in that it can be assembled and assembled over the chair back.

Chair back fastener of the present invention is made of a material such as a rubber body with a high elastic force to be molded integrally and the bolt fastener and '┗┛' cross-sectional shape coupled to the body and the support of the fastener body Since the cover member is made of hard synthetic resin or metal, the fastener body is configured to be tightly coupled to the back support and the back of the chair.

In addition, the bolt fastener made of hard synthetic resin or metal is provided with a protrusion formed to protrude at a right angle from the bottom to penetrate the body of the fastener body, the upper surface of the bolt insertion hole to achieve a solid coupling by a bolt, etc. in the back support object Formed.

Therefore, the chair back fastener of the present invention may be implemented in various colors because each component does not need a separate bonding process through a high frequency heating lamp and a mixture such as carbon for good adhesion is not added as in the prior art. .

Hereinafter, the description of the effect including the technical configuration for the above object of the chair back fastener of the present invention will be clearly understood by the following detailed description with reference to the drawings showing a preferred embodiment of the present invention.

First, Figure 3 is a combined perspective view of the chair backrest fastener of the present invention, Figure 4 is a partial cutaway sectional view of the chair backrest fastener of the present invention, Figure 5 is a side cross-sectional view of the chair backrest fastener of the present invention.

As shown, the chair back binding fasteners of the present invention is composed of a high elastic material, the neck-shaped hinge (13, 13 ') extending from both sides of the central body 12, each hinge 13, 13' A cover of a '┗┛'-shaped cross section surrounding the body of the fastener body 11 of one body in which the supports 14 and 14' are integrally coupled to the end of the body, and the lower body 12 of the fastener body 11. The bolt fastener 15 which consists of the member 16, the protrusion 17 which protrudes upward from the bottom face of the cover member 16, and the bolt hole 17a was formed in the center, and the quantity of the said fastener main body 11 It is composed of a fixing bracket (18, 18 ') of the' ┗┛'-shaped section wrapped around the bottom of the support (14, 14 ') and provided with bolt holes (18a, 18a') in the center of the bottom.

The fastener main body 11 is made of a material such as high elastic rubber and the like, and the support body 14 and 14 'including the body 12 and the hinge body 13 and 13' by injection are integrally molded. The central portion of the body 12 is a structure in which a rectangular through hole 12a penetrating the inside of the body 12 is formed.

Further, both ends of the support body 14 and 14 'of the fastener main body 11 have bolt holes 14a and 14a' formed at the lower end thereof, and the inside of the support body 14 and 14 'in the opposite direction is bolted. It will be desirable to make the empty space so that and the nut is easily coupled.

On the other hand, the bolt fastener 15 coupled to the outer peripheral surface of the lower end of the body 12 is made of a hard synthetic resin material made of nylon or ABS resin and the like in the bottom portion of the cover member 16 of the '┗┛' cross-sectional shape A protrusion 17 protruding vertically upward is formed, and a bolt insertion hole 17a is formed at a predetermined depth on an upper surface of the protrusion 17.

In addition, the '┗┛' shaped fixing brackets 18, 18 ′ tightly coupled to the lower outer circumferential surfaces of the supports 14, 14 ′ are made of the same material as the bolt fastener 15 and have a central bottom surface. The relatively shallow bolt holes 18a and 18a 'are formed.

Chair back fastener 10 of the present invention made of a structure as described above is a support body 14, 14 'and hinge body 13 which are attached to both ends of the body 12, as in the conventional fastener (1) ( 13 ') is not bonded in a complex process such as high-frequency heating, but the binder body 11 is formed of one body, the cover made of a hard synthetic resin at the lower end of the body 12 and each support 14, 14' The members 14a and 14a 'have a structure in which the members 14a and 14a' are simultaneously coupled to the backrest by a bolt or the like.

Next, Figure 6 is a perspective view of another embodiment of the chair back fastener of the present invention, as shown, the chair back fastener of the present embodiment is the body of the fastener main body 21 manufactured as one body by a single process such as injection molding ( 22 and the insertion grooves 22a, 23a, 23a 'in the form of a straight line are formed on both sides of the lower ends of the supports 23, 23' at both ends, and the insertion grooves 22a, 23a, 23a. ') Is provided with a bolt fastener 25 provided with a protrusion 27 and the' bracket '(26) (26') of the cross-sectional shape is inserted and fixed.

Chair back fastener of the present embodiment is so that the vertical bending surface of the bolt fastener 25 and the fixing brackets 26, 26 'is inserted into the interior of the fastener body, respectively, so that the fastener is not exposed to the outside when combined with the back of the fastener body. It is a fixed structure.

In addition, since the fastener main body 21 is made of a material such as rubber having high elasticity, the size of the insertion grooves 22a, 23a, and 23a 'of the straight shape is determined by the bolt fastener 25 and the cover member 26. If formed smaller than the end of each of the vertical bending surface (26 ') and combined by the interference fit will be firmly fixed by the elasticity of the binding body (21).

On the other hand, Figure 7 is a perspective view showing another embodiment of the chair back fasteners of the present invention, as shown in the backrest fasteners 30 of the present embodiment hinges 33a to 33d on each side of the fastener main body 31, respectively. And bolt fasteners 35 in which support bodies 34a to 34d are formed to extend and bolt holes 37a are formed in the center of the fastener main body 31, and hard synthetic resins are disposed below the support bodies 34a to 34d. It consists of a structure in which the fixing bracket (38a to 38d) of the '┗┛' section made of adhesive.

In the backrest binding device 30 of the present embodiment, each hinge body 33a to 33d and the support body 34a to 34d including the binding body 32 are integrally formed of an elastic material such as rubber, so as to be in up, down, left, and right directions. It is also configured to move freely.

In addition, Figure 8 is a perspective view showing another embodiment of the backrest fastener of the present invention, as shown in the backrest fastener 40 of the present embodiment the shape of the cross shape as shown in the embodiment shown in FIG. The fixing brackets 48a to 48d configured to be coupled to each of the supports 44a to 44d may be formed in the form of the coupling of the fixing bracket shown in FIG.

As described above, the chair back fastener of the present invention is made of a material such as rubber of high elasticity material such that the body is composed of one body by a molding method such as injection and the like on the lower end of the body and both ends of the support. The bolt fastener made of synthetic resin or metal and the fixing bracket are combined to simplify the manufacturing process by unifying various complicated bonding processes for fixing and fixing the body and each support by the hinge as in the prior art. Since there is no need to bond the body and the support and the hinge body made of a high elastic material made of a hard synthetic resin, there is an advantage that the color of the binder body can be realized in various ways by molding the body of the body without carbon.

Claims (4)

It is made of a highly elastic material and extends from each side of the center body 12 to form a neck-shaped hinge body 13, 13 'and supports 14, 14' at the ends of each hinge body 13, 13 '. And a cover member 16 having a '┗┛'-shaped cross-section surrounding the lower body 12 of the body in which the body is integrally coupled, the lower body 12 of the fastener body 11, and the cover member 16. A bolt fastener 15 consisting of a protrusion 17 formed upwardly from the bottom of the bottom and having a bolt hole 17a formed at the center thereof, and surrounding both lower portions of the support bodies 14 and 14 'of the binding body 11. Chair back fasteners, characterized in that consisting of a fixed bracket (18, 18 ') of the' ┗┛ 'type cross section provided with a bolt hole (18a) (18a') in the center. According to claim 1, The fastener body 11 is made of a material such as rubber having a high elastic force and the bolt fastener 15 and the cover member (18) (18) coupled to the fastener body (11) ') Is a chair back fastener, characterized in that made of hard synthetic resin or metal such as nylon or ABS resin. The method according to claim 1, wherein both sides of the body 22 and the end supports 23, 23 'of the fastener body 21 are formed in one body by a single process such as injection molding. Insertion grooves 22a, 23a and 23a 'are formed, and bolt fasteners 25 having a protrusion 27 on the insertion grooves 22a, 23a and 23a' and a '┗┛' cross section. The seat back binding device characterized in that the cover member (26) (26 ') of the shape is made of a fixed structure. According to claim 1, wherein each of the hinge body (33a ~ 33d) and the support body (34a ~ 34d) integrally formed on both sides of the cover body 32 is formed in a cross shape around the cover body 32 and the cover body A bolt fastener 35 having a bolt hole 37a is inserted in the center of the 32, and the '┗┛' type fixing brackets 38a to 38d are fixed to the lower portions of the supports 34a to 34d. Chair back fasteners characterized in that the structure.