CN2371881Y - Modular chair board - Google Patents

Abstract

A combined chair plate comprises a chair back plate, a supporting rod, a nut and a bolt, wherein the nut and the bolt are used for combining the chair back plate with the supporting rod, the nut is provided with a nut body, internal threads are formed inside the nut body, the nut body penetrates through the chair back plate, one end of the nut is provided with a nut head, the other end of the nut is provided with a tightening part which is riveted and pressed on the other side surface of the chair back plate, the bolt is provided with external threads, and a fixing ring is arranged on the periphery of the tightening part of the nut in a ring mode, so that the tightening part can be completely and uniformly riveted and bent on the chair back plate, the plate surface of the chair back plate is not easy to crack, and the anti-loosening effect after the chair back plate is combined with.

Description

Modular chair board

The utility model relates to a combined chair board.

As shown in Figure 1-4, it is the combined structure of the chair board of Taiwan New Patent Announcement No. 267325. The chair board 2 is composed of a chair back board 21, a support rod 22, a nut 1 and bolts 3. When the chair board 2 is combined and installed, the tightening part 13 at one end of the nut 1 is passed through the seat back 21 provided with a hole 211, and then the nut body of the nut 1 in a quadrangular shape is made by using the impact force. 11 is stuffed in the hole 211 of the chair backboard 21, and the cap head 12 of the nut 1 can stop on one side of the chair backboard 21, and then, the tightening part 13 can be riveted on the The other side of the seat back plate 21, and complete the fixing operation of the nut 1, the support rod 22 is provided with a through hole 221 corresponding to the hole 211 of the seat back plate 21, by the bolt 3 and the nut 1 The inner thread 111 is screwed tightly, so that the chair backboard 21 and the support rod 22 complete the combined installation operation, but when the chair panel 2 is combined and installed, it still has the following disadvantages:

(1) The board surface of the chair back board is easy to crack:

As shown in Figure 2, because of the combined structure of the general chair board, the outer diameter of the nut body 11 of the nut 1 used in it is quadrangular, so the stamping area in contact with the chair back board 21 is large, therefore, when the nut 1 When the cap body 11 is to be filled in the hole 211 of the backboard 21, a relatively large impact force must be exerted to make the nut body 11 completely filled in the backboard 21. However, if the impact force is too large, it is easy to cause The seat back board 21 will crack, and the nut body 11 will be partially exposed as shown in FIG. 3 and cannot be completely filled in the chair back board 21 .

(2) The tightening part of the nut cannot be completely riveted and bent:

Due to the combined structure of the general chair board, the nut body 11 of the nut 1 used in it will be partially exposed and cannot be completely filled in the back board 21, so the tightening part 13 will not be able to protrude completely. The hole 211 is externally used for riveting and bending, so that after being riveted and bent, the tightening part 13 will be slightly inserted into the outer edge surface of the hole 211 as shown in FIG. Riveted and bent into shape.

(3) The tightening part of the nut is bent irregularly:

In the combination structure of the general chair board, when the tightening part 13 of the nut 1 used is riveting, because the tightening part 13 itself has no bending support point, the tightening part 13 will start to form a bend The places cannot be evenly formed at the same point, but as shown in FIG. 4 , the tightening portion 13 will be irregularly bent.

(4) The anti-loosening effect of the combination of the chair backboard and the support rod is not good:

Because of the combined structure of the general chair board, the outer diameter of the nut body 11 of the used nut 1 is quadrangular. When the nut body 11 is filled in the hole 211 of the seat back board 21, because the nut body 11 only conflicts with the inner ring surface of the hole 211 through four end faces, so the anti-loosening effect after the support rod 22 is combined with the seat back plate 21 by the bolt 3 is not good.

The purpose of the utility model is to provide a combined chair board which can effectively prevent the board surface of the chair back board from cracking, and the anti-loosening effect after the chair back board is combined with the support rod.

The combined chair board of the utility model comprises a chair back board, a support rod combined with the chair back board, and at least one nut and bolt combining the chair back board and the support rod, and at least one A fixing hole, the support rod is provided with at least one combination hole at the fixing hole on the corresponding seat back plate, the nut has a nut body with internal threads formed inside, the nut body passes through the fixing hole, the nut One end of the cap forms a cap head that is restrained on one side of the backboard, and the other end forms a tightening portion riveted on the other side of the backboard. The bolt has an internal thread that is screwed into the nut body. The outer thread of the tightening part of the nut is provided with a fixing ring on the peripheral ring, so that the nut body of the nut can be riveted by the tightening part, and the tightening part is bent with the end of the fixing ring as its support point, so that the tightening part can be completely and evenly riveted and bent on the backboard, so as to improve the quality of work, and can effectively achieve that the board surface of the backboard is not easy to crack, and has the backboard and the backboard Anti-loosening effect after the support rods are combined.

The combined chair board is characterized in that the nut body can be hexagonal, octagonal or dodecagonal.

The combined chair board is characterized in that: a tapered surface can be formed between the nut body and the cap head.

In summary, the advantages and effects of the combined chair panel of the present invention are as follows:

(1) The board surface of the chair back board is not easy to crack:

Because the nut body of the present invention is hexagonal, the stamping area in contact with the backboard is smaller than the impact area of the square nut body in the past, so when the nut body is intended to be filled in the fixing hole of the backboard , the nut body can be completely filled in the seat back board only by applying a small impact force, and because of the small impact force, the board surface of the chair back board is not easy to crack.

(2) The tightening part of the nut can be completely and evenly riveted and bent into shape:

Because the tightening portion of the nut of the present utility model is riveted, the end of the fixed ring on the periphery of the tightening portion is used as a supporting bending point, so that the tightening portion can be completely riveted on the other side of the backboard. On one side, in the state shown in Figures 7 and 8, the tightening portion can be completely and evenly riveted and bent.

(3) The anti-loosening effect of the combination of the chair backboard and the support rod is better:

Because the nut body of the present utility model is hexagonal, when the nut body is filled in the fixing hole of the backboard, because the nut body conflicts with the inner ring surface of the fixing hole through its six end faces The area is relatively wide, so the anti-loosening effect after the combination of the chair backboard and the support rod is better than before with only the four end faces and the inner ring surface of the hole.

The combined chair board of the present utility model is described in detail below through the best embodiment and accompanying drawings, in the accompanying drawings:

Fig. 1 is a three-dimensional exploded schematic view of the combination structure of conventional chair panels.

Fig. 2 is a three-dimensional schematic diagram of a nut body in a conventional combination structure of chair boards.

Fig. 3 is a combined cross-sectional view of a conventional chair panel combination structure.

Fig. 4 is a schematic rear view of the tightening portion of the nut body in the conventional chair board combination structure after being riveted.

Fig. 5 is a combined sectional schematic diagram of a better embodiment of the utility model.

Fig. 6 is a three-dimensional schematic view of the nut body of the above preferred embodiment of the present invention.

Fig. 7 is a schematic diagram of assembly of a better embodiment of the utility model.

FIG. 8 is a schematic rear view of the tightening part of the nut body of the above preferred embodiment of the present invention after being riveted.

As shown in FIGS. 5 and 6 , in the combined chair panel of the present invention, the chair panel 5 includes a seat back panel 51 , a support rod 52 , nuts 4 and bolts 6 . The seat back panel 51 defines a fixing hole 511 . The supporting rod 52 defines a coupling hole 521 corresponding to the fixing hole 511 of the seat back panel 51 . The nut 4 has a nut body 41, and an internal thread 411 is formed in the nut body 41, a cap head 42 is formed at one end of the nut 4, and a tightening portion 43 is formed at the other end, the tightening portion 43 peripheral rings are provided with a fixing ring 44, and the cap head 42 is made on one side of the backboard 51 after the nut body 41 passes through the fixing hole 511 on the backboard 51. The main body 41 passes through the fixing hole 511 on the seat back board 51 and is riveted to the other side of the seat back board 51 . The bolt 6 has an external thread 60 , and after the bolt 6 passes through the coupling hole 521 on the support rod 52 , the external thread 60 is screwed with the corresponding internal thread 411 of the nut body 41 . In addition, in this embodiment, the nut body 41 is hexagonal (or octagonal or dodecagonal), and a tapered surface 45 is formed between the nut body 41 and the cap head 42 .

As shown in Figures 5 and 6 and in conjunction with Figures 7 and 8, when the chair board 5 of this embodiment is installed in combination, the tightening part 43 of the nut 4 passes through the fixing hole 511 of the chair back board 51 , and using stamping technology to make the hexagonal nut body 41 extend into the fixing hole 511, and the cap head 42 stops on the side surface of the seat back panel 51. In addition, the tightening part 43 is riveted. Utilize the fixing ring 44 on the periphery of the tightening part 43, so that the tightening part 43 can be riveted on the other side of the seat back panel 51 with the end of the fixing ring 44 as the bending point. At this time, as In the state shown in Figures 7 and 8, the tightening portion 43 can be completely and evenly riveted and bent to complete the fixing function of the nut 4 on the seat back plate 51, and finally, it can be After the bolt 6 passes through the combination hole 521 of the seat back plate 52, it is then screwed on the internal thread 411 of the nut body 41 to complete the combination installation operation. Because, by the nut body 41 being hexagonal, the punching area of the fixing hole 511 between the nut body 41 and the seat back plate 51 is relatively small, and the nut body 41 can be applied with a small impact force. The main body 41 is placed in the fixing hole 511, therefore, the chair back plate 51 will not be cracked, and because the nut body 41 is increased from four end faces in the past to six end faces and the fixing hole 511 The inner edge surface conflicts, and then cooperates with the taper surface 45 between the nut body 41 and the screw head 42, so that the support rod 52 can effectively achieve a better anti-loosening effect after the bolt 6 is combined with the seat back plate 51 .

Claims (5)

1. combination type chair plate, comprise a chair back plate, one strut that combines with chair back plate, and at least one nut and bolt that this chair back plate is combined with strut, form at least one fixed hole on this chair back plate, the fixed hole place of this strut on corresponding chair back plate is provided with at least one joining hole, this nut has an inner nut body that forms internal thread, this nut body passes this fixed hole, this nut one end forms the cap head of a retaining system what chair back plate one side, and the other end forms one by the fastening portions of the another side of riveting what chair back plate, and this bolt has the outside thread that the internal thread with the nut body is screwed, and it is characterized in that:

The fastening portions periphery ring of this nut is provided with a retaining ring.

2. combination type chair plate as claimed in claim 1 is characterized in that:

This nut body is hexagon.

3. combination type chair plate as claimed in claim 1 is characterized in that:

This nut body is octagon.

4. combination type chair plate as claimed in claim 1 is characterized in that:

This nut body is dodecagon.

5. combination type chair plate as claimed in claim 1 is characterized in that:

Form a conical surface between this nut body and the cap head.

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