CN2887148Y - Office chair foot - Google Patents

Abstract

The chair leg of the office chair in the utility model which relates to the chair used in family and office, in particular to the rotatable office chair comprises a center seat, and more than three hollow support legs fixedly connected with the center seat, is characterized in that an area formed between the inner edge and outer edge of the center seat is provided with a plurality of hollow eyelets which are distributed evenly in the peripheral direction and have the same shape and size; the hollow support legs inside are provided with the molded reinforcing ribs which are parallel to the axis lines of the support legs; the terminal of the reinforcing ribs extend to the outer edge of the center seat. As the structure of the reinforcing ribs is changed, the structure overcomes the defects of the material to a certain extent, and can effectively enhance the strength of the chair leg, thereby prolonging the service life of the chair.

Description

Office chair chair pin

Technical field

The utility model office chair chair pin relates to family and office chair, especially rotating office chair.

Background technology

Office chair is one of requisite apparatus in all kinds of office spaces, and office chair itself also has polytype.Wherein, the rotating office chair of seat as shown in Figure 1 uses wider, the chair pin 01 of this office chair generally is a plastic material, adopt the mode of injection mo(u)lding to make, its structure roughly comprises the leg that a centre mount and several and centre mount are fixed with one, from the lower end look up, its centre mount, leg inside is hollow form, though can reach the purpose of saving material and weight reduction like this, but structurally be not optimization, this structure has weakened the intensity of leg to a certain extent, more because the defective of material, this structure makes leg do the time spent and bad phenomenon such as fracture occur easily being subjected to bigger external force, influences the service life of chair, even contingency occurs.

Summary of the invention

The purpose of this utility model provides a kind of office chair chair pin, and it has overcome the deficiencies in the prior art part, by structural improvement, overcomes the defective of material own, can increase the intensity of chair pin effectively, prolongs the service life of chair.

A kind of office chair chair of the utility model pin, comprise centre mount and the hollow feet that is fixed with one with centre mount more than three, the inner edge that it is characterized in that described centre mount and outer rim form zone several circumferential equally distributed shapes, hollow eyelet that size is identical; The reinforcement parallel with the leg axis of moulding arranged in the described hollow feet, and the end of this reinforcement extends on the outer rim of centre mount.

Above-mentioned office chair chair pin, the auxiliary stiffener that intersects with reinforcement and hollow feet inwall that moulding arranged in the described hollow feet.

Adopted above structure,, overcome the defective of material itself to a certain extent, can increase the intensity of chair pin effectively, prolonged the service life of chair owing to changed the structure of reinforcement.

Description of drawings

Fig. 1 is the schematic appearance of prior art office chair.

Fig. 2 is the upward view (after removing roller) of the utility model office chair chair pin.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

See shown in Figure 2, the utility model office chair chair pin comprises centre mount 10, there are several circumferential equally distributed shapes, equirotal hollow eyelet 14 in the zone 13 that is formed in the inner edge 11 and the outer rim 12 of centre mount 10, and is adjacent and occupy between the described hollow eyelet 14; The utility model office chair chair pin also comprises the hollow feet 20 that is fixed with one with centre mount 10 more than three, five pin have been shown among Fig. 2, the reinforcement 21 parallel with leg 20 axis of moulding arranged in the described hollow feet 20, and the end of this reinforcement 21 extends on the outer rim 12 of centre mount 10.When using chair, because each leg 20 suffered pressure is different, be unequal, especially chair is when the pressure that is happened suddenly, individual other leg 20 suffered pressure are huge, this structure shown in Figure 2 makes each leg 20 can power be transmitted on the whole centre mount 10 effectively when being subjected to immense pressure, but not on the point of a part of centre mount 10, thus service life of elongation center's seat 10 effectively.For the shortcoming that intensity is low, plasticity is big that overcomes plastic material, the auxiliary stiffener 22 that intersects with reinforcement 21 and hollow feet inwall 24 that can have additional moulding in the described hollow feet 20, so utilize the triangle fixation principle can reduce the defective of material itself effectively, change the plastic deformation of reinforcement 21, strengthen its structural strength, thereby improve the intensity of whole leg 20.

Claims (2)

1, office chair chair pin comprises centre mount and the hollow feet that is fixed with one with centre mount more than three, and the inner edge that it is characterized in that described centre mount and outer rim form zone several circumferential equally distributed shapes, hollow eyelet that size is identical; The reinforcement parallel with the leg axis of moulding arranged in the described hollow feet, and the end of this reinforcement extends on the outer rim of centre mount.

2, office chair chair pin according to claim 1, the auxiliary stiffener that intersects with reinforcement and hollow feet inwall that it is characterized in that having in the described hollow feet moulding.

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