JP3070040U - Chair legs - Google Patents

Abstract

(57) [Summary] [Problem] To provide a chair leg which is excellent in reinforcement effect, excellent in durability and long in life. SOLUTION: The chair leg is constituted by a supporting leg 12 which extends outward by a suitable amount around a fixed body 11 having an insertion hole 111, and an appropriate amount of a vertical bone 12 is provided inside the hollow supporting leg 12.
1, a lateral bone 122 and an oblique bone 123 are provided.
2 An appropriate amount of reinforcing bone 124 is provided on both inner surfaces, and the vertical bone 121 extends in the longitudinal direction inside the support leg 12, and the horizontal bone 122 is formed between the vertical bone 121 and the inner surface of the support leg 12. The oblique bone 123 is located between the vertical bone 121 between the two horizontal bones 122 and the inner side surface of the support leg 12, and thus the vertical bone 12
1. The lateral bones 122 and the oblique bones 123 are continuously arranged inside the support legs 12. Thereby, the reinforcing effect is excellent, the durability is excellent, the life is long, and it is effective for improving the conventional plastic chair legs.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a chair leg.

[0002]

[Prior art]

 At present, with the development of industrial and commercial, the supply and demand of office chairs is also greatly expanding, and prices are falling due to market competition, and consumers are demanding increasingly cheap and durable ones. At present, office chairs that meet the demands use a large amount of plastic materials, especially for chair legs. Plastic chair legs must be made of limited materials, which in principle save material, and must support a certain weight. Reinforced bones are provided to increase the strength of the chair legs, and the structure is stable even under heavy weight loading. Further, a chair leg conventionally seen is, for example, as shown in FIG. 3, in which a fixed body A1 is provided in the middle of the chair leg A, and a fixed leg A2 is formed on the fixed body A1 so as to extend radially outward. Reinforcing bone A3 in which V-shaped portions are slightly arranged continuously is integrally molded with the inner bottom of the supporting leg A2. FIG. 4 shows a related design of the reinforcing bone A3, which is obtained by molding the reinforcing bone A3 inside the supporting leg A2 in a cross-array system, and strengthening the strength of both sides of the supporting leg A2.

[0003]

[Problems to be solved by the invention]

 However, the above-mentioned structure still needs improvement. In particular, the above two structures use a plastic material for the reinforcing bone A3 to enhance the strength of the supporting leg A2. However, when the supporting leg A2 is pushed down by the weight of the user, the weight thereof lowers the fixed body A1 and the weight thereof lowers. Since the connecting legs A2 are also pressed, the legs are slightly extended and deformed, and if this gravitational action is frequent, the connecting portion between the fixed body A1 and the legs A2 becomes fatigued and causes cracks and cuts. . At the same time, the gravitational force applied to the plastic reinforcing bone A3 is very large, and there is a problem that if a person exceeding the weight sits down and the chair leg A is pressed, it cannot be supported.

[0004] An object of the present invention is to provide a chair leg which has an excellent reinforcing effect, excellent durability and a long life.

[0005]

[Means for Solving the Problems]

 In order to solve the above problem, a chair leg according to claim 1 of the present invention is constituted by a hollow support leg extending an appropriate amount outward around a fixed body having an insertion hole, and both inner surfaces of the support leg. Is characterized in that reinforcing bones are appropriately arranged.

A chair leg according to a second aspect of the present invention is the chair leg according to the first aspect, wherein the reinforcing bones are continuously arranged.

A chair leg according to a third aspect of the present invention is the chair leg according to the second aspect, wherein the reinforcing bones are arranged in a continuous wavy shape.

According to a fourth aspect of the present invention, there is provided a chair leg comprising the support leg which extends outward by a suitable amount around the fixed body having the insertion hole, and a vertical bone is provided inside the hollow support leg. , A horizontal bone and a diagonal bone are provided, and the vertical bone extends in the longitudinal direction inside the support leg. The horizontal bone partitions between the vertical bone and the inner side surface of the support leg. It is characterized in that the longitudinal bone, the lateral bone and the oblique bone are continuously arranged inside the support leg between the vertical bone and the inner surface of the support leg between two horizontal bones.

[0009]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the chair leg according to an embodiment of the present invention has a structure in which a plastic outer body 1 is integrally formed, and the outer body 1 has a fixing body 11 having an insertion hole 111. And a hollow support leg 12 which is extended outward by an appropriate amount around the periphery thereof, and the features thereof are as follows.

An appropriate amount of vertical bone 121, lateral bone 122 and oblique bone 123 are provided inside the support leg 12 of the outer body 1, and an appropriate amount of reinforcing bone 124 is provided on both inner surfaces of the support leg 12. The vertical bone 121 extends in the longitudinal direction inside the support leg 12, the horizontal bone 122 partitions between the vertical bone 121 and the inner surface of the support leg 12, and the oblique bone 123 connects the two horizontal bones 122. It is located between the vertical bone 121 and the inner surface of the support leg 12. Therefore, the vertical bones 121, the horizontal bones 122, and the oblique bones 123 are continuously arranged inside the support legs 12, and the reinforcing bones 124 are continuously arranged in a wavy shape.

The above design is as shown in FIG. 2, but when the chair leg receives the gravity of the upper stool portion, the fixed body 11 first supports the gravity, and then the gravity pressed downward is Although distributed to each support leg 12, the support leg 12 does not expand and bend or deform due to the vertical bone 121, the lateral bone 122, the oblique bone 123, and the reinforcing bone 124 reinforced in the support leg 12. The chair retains its original shape and has excellent resistance to pressure, so that each chair leg does not deform or crack.

[0013]

[Effect of the invention]

 As described above, the chair leg according to the present invention has structural features such as reinforced vertical bone, horizontal bone, oblique bone, and reinforcing bone. As a result, the reinforcing effect is outstanding, the durability is excellent, the life is long, and it is effective for improving the conventional plastic chair legs.

[Brief description of the drawings]

FIG. 1 is a sectional view illustrating a chair leg according to an embodiment of the present invention;

FIG. 2 is an elevation view showing a chair leg according to an embodiment of the present invention;

FIG. 3 is a structural sketch showing a conventional chair leg.

FIG. 4 is a perspective view showing another conventional reinforcing bone.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer body 11 Fixed body 111 Insertion hole 12 Support leg 121 Vertical bone 122 Horizontal bone 123 Oblique bone 124 Reinforcement bone A Chair leg A1 Fixed body A2 Support leg A3 Reinforcement bone

Claims (4)

[Utility model registration claims] 1. A fixed body having an insertion hole, a hollow leg extending outward around the fixed body, and reinforcing bones provided on both inner surfaces of the leg. Chair legs. 2. The chair leg according to claim 1, wherein the reinforcing bones are arranged continuously. 3. The chair leg according to claim 2, wherein the reinforcing bones are arranged in a continuous wave shape. 4. A fixed body having an insertion hole, a limb extending outward around the fixed body, and a vertical bone, a lateral bone and an oblique bone provided inside the limb, wherein the vertical bone is Extending in the longitudinal direction inside the support leg, the horizontal bone partitions between the vertical bone and the inner surface of the support leg, and the oblique bone is between the vertical bone and the inner surface of the support leg between the two horizontal bones. A chair leg, wherein the vertical bone, the horizontal bone, and the oblique bone are arranged continuously inside the support leg.