TWI607726B - Chair leg structure for chair - Google Patents

Description

Chair structure for chairs

The present invention relates to a chair foot structure for a chair, and more particularly to a chair foot structure capable of avoiding the breakage of the inclined wooden foot chair.

The general wooden chair gives a warm, soft texture. It is not like the hard and cold feeling of steel products. Therefore, the wooden chair still occupies a certain market and development space. At present, the manufacturing and assembly of wooden chairs will be cut into strips of wood. It is fixed by splicing or screwing, but it is nailed or screwed. However, under the constant force, the part of the chair script is easy to loose, making it sway and even loose when riding. Open, thus causing the wooden chair to have a short service life.

However, the chair script body of the current wooden chair is more inclined to the seat cushion, but if the wooden chair is made of wooden material, if it is only fixed by screwing or screwing, The inclined chair script experience is more stressed than the upright chair script body, so the way of splicing or screwing, the supporting force is insufficient, and the connection between the chair script body and the seat cushion will be broken or connected. The connector or the screw is broken, and once the connection or the connecting element is broken, the consumer will no longer be able to use the wooden chair. If the connecting component is directly broken in the chair script, the chair script body will not be reused. Therefore, consumers must re-purchase new chairs, which is very bad for consumers.

Therefore, in order to overcome the above problem, if the combination between the chair script body and the seat cushion can be used in a relatively stable manner, it is possible to more avoid the breakage caused by the large pressure of the tilting chair script body. An optimal solution.

In addition to solving the problem that the slanting chair is easily broken by the pressure, the assembly method of the script body and the fixing piece and the back of the seat cushion are modularized, and the chair script body is damaged or old or wants to change the shape. At the same time, the user can replace it by himself to highlight the user or store's self-style.

A chair foot structure for a chair is coupled under a seat cushion of a chair, and the seat cushion has at least one fixing hole under the chair cushion, and the leg structure comprises: a chair script body, which is made of wood material The chair script system has a chair body, a top end portion and a bottom end portion, and the chair script system has an inclined angle with the seat cushion, and the top end portion faces the seat cushion, and the top end portion is further Having at least one shaft hole and at least one first locking hole; a fixing piece having at least one second locking hole and a third locking hole, and at least one of the surface of the fixing piece extends a high-hardness shaft column, the high-hardness shaft column of the fixing piece can be inserted into the shaft hole of the chair script body, and the at least one first locking element passes through the second locking hole and is locked to the first lock In the fixing hole, the fixing piece can be firmly attached to the top end portion of the chair script body, and the high-hardness shaft column surface has a rough surface, and the high-hardness shaft column is inserted into the shaft hole of the chair script body. , capable of making the high hardness shaft surface and the shaft The inner wall surface is tightly coupled; and a second locking component is capable of passing through the third locking hole and locking in the fixing hole of the seat cushion, so that the fixing piece combined with the chair script body can be firmly attached Below the seat cushion of the chair, the chair script body can be disposed obliquely downward toward the seat cushion so that the chair script body can disperse downward pressure from the seat cushion downwardly.

More specifically, the aperture and depth of the shaft hole correspond to the diameter and length of the high-hardness shaft column so that the high-hardness shaft column can be in close contact with the shaft hole.

More specifically, the length of the high-hardness shaft column is greater than or equal to 2 cm.

More specifically, the rough surface is a thread.

More specifically, the aperture and depth of the first locking hole correspond to the diameter and length of the first locking component to enable the first locking component to be in close contact with the first locking hole.

More specifically, the first locking component is a screw, and the first locking hole is a screw hole, so that the first locking component can penetrate the second locking hole of the fixing piece, and the first locking hole The screws are screwed together to stably bond the fixing piece to the top end portion of the chair script body.

More specifically, the bottom end of the chair script body is a flat surface, a beveled surface, a circular surface or an irregularly shaped surface.

More specifically, the chair body of the chair script body is a cylinder, a square cylinder, a polygonal cylinder or an irregular cylinder.

More specifically, the structure of the fixing piece can be designed to have a shape having a specified direction.

More specifically, the chair body of the chair script body can be designed to be upright, and the top end portion has an inclined surface to enable the chair script body to have an oblique angle with the seat cushion.

More specifically, the chair body of the chair script body can be designed to be obliquely shaped, and the top end portion has a plane so that the chair script body can have an oblique angle with the seat cushion.

1‧‧‧ Chair script body

11‧‧‧The body of the chair

12‧‧‧Top part

121‧‧‧Axis hole

122‧‧‧First locking hole

13‧‧‧ bottom end

2‧‧‧Fixed tablets

21‧‧‧Second locking hole

22‧‧‧ Third locking hole

23‧‧‧High hardness shaft column

3‧‧‧First locking element

4‧‧‧Second locking element

5‧‧‧ Chair

51‧‧‧ Chair cushion

511‧‧‧Fixed holes

[Fig. 1A] is a structural exploded view of the chair foot structure of the present invention.

[Fig. 1B] is a schematic view showing the structure of the chair and foot structure of the present invention.

[FIG. 1C] FIG. 1 is a cross-sectional view showing the structure of a chair foot structure of the present invention.

[Fig. 2A] is a structural exploded view of the first embodiment of the chair and foot structure of the present invention combined with a seat cushion.

[Fig. 2B] is a schematic view showing the structure of the first embodiment of the chair and foot structure of the present invention combined with the seat cushion.

[Fig. 2C] is a schematic cross-sectional view showing the structure of the first embodiment of the chair and foot structure of the present invention combined with the seat cushion.

[Fig. 2D] is a schematic view of the pressure bearing of the chair combined with the seat cushion in the first embodiment of the chair foot structure of the present invention.

[Fig. 3] is a schematic view showing the structure of the second embodiment of the chair and foot structure of the present invention combined with the seat cushion.

[Fig. 4] is a schematic view showing the structure of the third embodiment of the chair and foot structure of the present invention combined with the seat cushion.

Other details, features, and advantages of the present invention will be apparent from the following description of the preferred embodiments.

Please refer to FIGS. 1A-1C for a structural exploded view, a structural joint diagram, and a structural cross-sectional view of a chair foot structure for a chair according to the present invention. As shown in the figure, the chair foot structure includes a chair script body 1. a fixing piece 2, a first locking element 3, and a second locking element 4, wherein the chair script body 1 is made of a wooden material, wherein the chair script body 1 has a seat body 11 and a top end portion. 12 and one The bottom end portion 13 has at least one shaft hole 121 and at least one first locking hole 122; the fixing piece 2 has at least one second locking hole 21 and a third locking hole 22, The second locking hole 21 and the third locking hole 22 are all penetrating circular holes, and one of the surfaces of the fixing piece 2 extends at least one high-hardness shaft column 23, the fixing piece The high-hardness shaft column 23 can be inserted into the shaft hole 121 of the chair script body 1 , and the at least one first locking element 3 passes through the second locking hole 21 and is locked to the first locking hole 122 . Therefore, the fixing piece 2 can be firmly attached to the top end portion 12 of the chair script body 1; wherein the hole diameter and depth of the shaft hole 121 correspond to the diameter and length of the high-hardness shaft column 23, so that The high-hardness shaft column 23 can be closely adhered to the shaft hole 121, and the surface of the high-hardness shaft column 23 has a rough surface (the rough surface is a thread), so the chair body is inserted into the high-hardness shaft column 23. After the shaft hole 121 of the first hole 121, the surface of the high-hardness shaft column 23 can be tightly coupled with the inner wall surface of the shaft hole 121; wherein the first locking hole 122 The aperture and depth correspond to the diameter and length of the first locking component 3, so that the first locking component 3 can be in close contact with the first locking hole 122, wherein the surface of the first locking component 3 After the first locking component 3 is inserted into the first locking hole 122 of the chair script body 1, the surface of the first locking component 3 can be close to the inner wall surface of the first locking hole 122. Combine.

Since the leg structure is obliquely coupled under the seat cushion 51 of a chair 5, whether the seat body 11 itself is in a non-upright configuration or the top end portion 12 is not a horizontal surface, as shown in FIG. 1C, The first locking component 3, the second locking component 4 and the high-hardness shaft 23 are all inserted straight into the second locking hole 21 and the shaft hole 121, but the top end portion 12 is not a horizontal surface. Therefore, a beveled surface can be found in Figure 1C; In combination with the seat cushion 51 of the chair 5, as shown in FIGS. 2A-2C, the second locking component 4 must pass through the third locking hole 22 and be locked in the fixing hole 511 of the seat cushion 51. The fixing piece 2 combined with the chair script body can be firmly attached to the seat cushion 51 of the chair 5, and as shown in FIG. 2D, the chair script body 1 can be disposed obliquely downward toward the seat cushion 51, so the chair The chair body 11 of the script body 1 can be designed to be upright, but the top end portion 12 has an inclined surface so that the chair script body 1 can have an inclined angle with the seat cushion 51; or directly the chair script body 1 The chair body 11 is designed to be inclined, and the top end portion 12 has a flat surface, so that the chair script body 1 can have an inclined angle with the seat cushion 51; since the chair script body 1 can have the seat cushion 51 Since the chair script body 1 can disperse downward pressure from the seat cushion 51 obliquely downward, and since the high-hardness shaft column 23 is tightly coupled with the shaft hole 121, the chair script body 1 can be prevented from being inclined. The fracture generated when the pressure is dispersed below.

The high-hardness shaft column must have a certain length to prevent the support force from being insufficient. Therefore, the length 23 of the high-hardness shaft column must be greater than or equal to 1 cm or more, and in order to strengthen the support strength, the first locking member 3 is also There must be sufficient length, so the first locking element 3, the above dimensions are only preferred embodiments of the present invention, and are not intended to limit the scope of the patent application of the present invention.

The structure of the fixing piece 2 can be designed as a shape having a specified direction (the most protruding end), and since the third locking hole 22 of the fixing piece 2 is designed to correspond to the fixing hole 511 of the seat cushion 51, consumption The most prominent end can be used as a reference for assembly and can be assembled in a directional manner.

The bottom end portion 13 of the chair script body 1 can be a flat surface, a sloped surface, a circular surface or an irregular surface. As shown in FIG. 2D, the bottom end portion 13 of the chair script body 1 is a sloped surface. Further, as shown in Fig. 3, the bottom end portion 13 of the chair script body 1 is a circular surface.

As shown in FIG. 4, the chair body 11 of the chair script body 1 can be a cylinder or a square cylinder. The polygonal cylinder or the irregular cylinder, and depending on the shape of the seat body 11, can design the bottom end portion 13 as a flat surface, a bevel surface, a circular surface or an irregular surface.

The material of the above fixing piece and the high hardness shaft column may be one of metal, carbon fiber, high hardness plastic fiber or a combination thereof. Moreover, the fixing piece and the high-hardness shaft column can be made of the same or different materials, and the invention is not limited.

In order to highlight the difference between the present invention and the conventional technology, the comparison between the conventional product and the present invention is as follows:

(1) Conventional wooden sloping chairs are usually screw-locked. Usually, the strength of the screw structure is insufficient, and the strength of the human body sitting on the seat surface cannot be supported. Therefore, the screw breaks or the chair script body is separated from the back of the seat cushion. At present, no single foot is modularized and standardized. Therefore, in order to solve the problem of insufficient screw strength, the chair foot is usually nailed, but when the chair foot is nailed, the chair foot cannot be replaced, and when damaged, The chair must be discarded and it is difficult for the user to repair it by himself.

(2) In the present invention, a high-hardness shaft column is added to the fixing piece, and the shaft hole inserted into the top end portion of the chair script body is supported by the high hardness shaft, and the strength of the chair script body is reinforced by the high-hardness shaft column, and the first locking is shared. The pressure exerted by the components is combined in a relatively stable manner to avoid a greater degree of separation of the connecting surfaces of the legs and the seat cushions due to the large pressure exerted by the inclined chair script body, completely solving the current wooden inclined The problems encountered in the chair.

(3) The present invention combines the fixing piece and the chair script body described in the above embodiments into one assembly module. Therefore, the assembly of the fixing piece and the chair script body can be first performed at the factory to simultaneously manufacture chairs of different shapes. The script body; since the fixing hole on the back of the seat cushion corresponds to the third locking hole on the fixing piece, no matter which shape of the chair is purchased by the user, the fixing piece can be assembled on the seat cushion by itself to enrich the chair. The overall shape can also be self-styled and can be changed at any time. The shape of the chair legs is designed to escape the current traditional chair foot.

(4) The present invention modularizes the legs of various shapes. Therefore, when any of the legs is damaged, the user can easily replace the chair script of the same shape or different shapes without discarding the entire chair. The new assembly concept that modularizes the legs is a sloping chair that has never been seen on the market.

The present invention has been disclosed above by the above embodiments, but is not intended to limit the present invention. Any person having ordinary skill in the art will be able to more clearly describe the present invention by the detailed description of the preferred embodiments. The invention is not limited by the specific embodiments disclosed herein. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.

1‧‧‧ Chair script body

11‧‧‧The body of the chair

12‧‧‧Top part

121‧‧‧Axis hole

122‧‧‧First locking hole

13‧‧‧ bottom end

2‧‧‧Fixed tablets

21‧‧‧Second locking hole

22‧‧‧ Third locking hole

23‧‧‧High hardness shaft column

3‧‧‧First locking element

Claims (7)

A chair foot structure for a chair is coupled under a seat cushion of a chair, and the seat cushion has at least one fixing hole under the chair cushion, and the leg structure comprises: a chair script body, which is made of wood material The chair script system has a chair body, a top end portion and a bottom end portion, and the chair script system has an inclined angle with the seat cushion, and the top end portion faces the seat cushion, and the top end portion is further Having at least one shaft hole and at least one first locking hole; a fixing piece having at least one second locking hole and a third locking hole, and at least one of the surface of the fixing piece extends a high-hardness shaft column, the high-hardness shaft column of the fixing piece can be inserted into the shaft hole of the chair script body, and the at least one first locking element passes through the second locking hole and is locked to the first lock In the fixing hole, the fixing piece can be firmly attached to the top end portion of the chair script body, and the high-hardness shaft column surface has a rough surface, and the high-hardness shaft column is inserted into the shaft hole of the chair script body. , capable of making the high hardness shaft surface and the shaft The inner wall surface is tightly coupled, and the structure of the fixing piece can be designed to have a shape with a specified direction; and a second locking element can pass through the third locking hole and be locked in the fixing hole of the seat cushion So that the fixing piece combined with the chair script body can be firmly attached under the seat cushion of the chair, and the chair script body can be disposed obliquely downward toward the seat cushion, so that the chair script body can be dispersed obliquely downward. The pressure of the seat cushion is downward. The chair foot structure for a chair according to claim 1, wherein the hole diameter and the depth of the shaft hole correspond to a diameter and a length of the high hardness shaft column, so that the high hardness shaft column can be densely coupled to the shaft hole. Hehe. A chair foot structure for a chair according to claim 1, wherein the rough surface is a thread. The foot structure for a chair according to claim 1, wherein an aperture and a depth of the first locking hole correspond to a diameter and a length of the first locking component, so that the first locking component can Adhering to the first locking hole. The chair foot structure for a chair according to claim 1, wherein the bottom end portion of the chair script body is a flat surface, a sloped surface, a circular surface or an irregular surface. The chair foot structure for a chair according to claim 1, wherein the chair body of the chair script body can be designed to be upright, and the top end portion has an inclined surface to enable the chair script body to be coupled with the seat cushion. Has a tilt angle. The chair foot structure for a chair according to claim 1, wherein the chair body of the chair script body can be designed to be inclined, and the top end portion has a plane to enable the chair script body to be coupled with the seat cushion. Has a tilt angle.