CN201263519Y

CN201263519Y - Five-star revolving chair leg and five-star revolving chair

Info

Publication number: CN201263519Y
Application number: CNU200820112316XU
Authority: CN
Inventors: 许华荣
Original assignee: Anji Shidai Office Furniture Factory
Current assignee: Anji Shidai Office Furniture Factory
Priority date: 2008-08-20
Filing date: 2008-08-20
Publication date: 2009-07-01
Anticipated expiration: 2018-08-20

Abstract

The utility model relates to a five-star swivel chair leg and a five-star swivel chair which uses the five-star swivel chair leg. The five-star swivel chair leg comprises a base body, a base central post and five supporting legs, wherein the lower part of the base central post is fixed into the base body, the base central post is used for connecting a seat, the five supporting legs are evenly distributed and are fixed outside the base body, one end of each supporting leg is fixed on the side surface of the base body, the other end of each supporting leg is fixedly connected with a universal wheel mechanism, and the middle part of each supporting leg is raised upwards; the whole of the supporting leg has the structure that both ends of the supporting leg are lower, and the middle part of the supporting leg is higher. The five-star swivel chair breaks through the localization of the supporting leg state design of the prior swivel chair, maintains or reduces a barycenter position, improves the bearing mode of the swivel chair leg and improves the stability of the swivel chair.

Description

Five-pointed star swivel chair pin and five-pointed star swivel chair

Technical field

The utility model relates to a kind of swivel chair as office furniture, particularly a kind of five-pointed star swivel chair pin and use the structure of the five-pointed star swivel chair of this five-pointed star swivel chair pin.

Background technology

The feet of swivel chair pin is generally made five in the prior art, so be five-pointed star swivel chair pin, five feets are evenly distributed around the base body, are to extraradial structure.Every feet one end and base body are fixed, and the other end and universal wheel mechanism are fixedly connected.The swivel chair pin with promptly form a complete chair after seat support is connected.In the prior art feet of five-pointed star swivel chair pin generally be with the universal wheel connection place to the structure that increases gradually with base body bearing, because universal wheel lands, and for the consideration of swivel chair stability, described base body bearing also should design near ground, this structural limitations the design space of swivel chair pin, improved the center of gravity of chair to a certain extent, promptly reduced the stability of chair, particularly when swivel chair user improper use, be subjected to the swivel chair pin of flat design to be subjected to the influence of force mode, topple easily.

The utility model content

The technical problems to be solved in the utility model provides the existing swivel chair feet form design limitations of a kind of breakthrough, keep simultaneously even the position that lowers the center of gravity, improve the swivel chair pin and be subjected to force mode, improve the five-pointed star swivel chair pin of stability and use the five-pointed star swivel chair of this five-pointed star swivel chair pin.

The purpose of this utility model is achieved through the following technical solutions: this five-pointed star swivel chair pin comprises that base body, bottom are fixed in the base body in order to the base newel that connects seat support and evenly distribute and be fixed on five feets in the base body outside, one end of each feet is fixed on the side of base body, the other end and universal wheel mechanism are fixedly connected, every feet mid portion upwards swells, and integral body is the structure that two ends are lower, mid portion is higher.

Feet adopts the mid portion protuberance, after integral body is the structure that two ends are lower, mid portion is higher, can not only keep even reduce the position of centre of gravity of swivel chair, and, because feet is subjected to the change of force mode, make itself and use the swivel chair stability of this five-pointed star swivel chair pin to improve, the design of feet has broken through the just single-mode from reducing gradually to universal wheel with the base body of feet in the prior art simultaneously.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model.

Fig. 2 is an A-A part section structural representation among Fig. 1.

In institute's drawings attached, the corresponding relation of each parts and numbering is as follows: 1-base newel, the 2-feet is pounced on wood, 3-feet, 4-universal wheel, 5-base body, 6-dust cover.

The specific embodiment

Fig. 1, Fig. 2 show a preferred implementation of this five-pointed star swivel chair pin.This five-pointed star swivel chair pin pounces on wood 2 by base body 5, base newel 1, feet 3, universal wheel 4, feet and dust cover 6 is formed, wherein, base body 5 is the cylindrical of hollow, the cylindrical upper end opening of this hollow, and the bottom of confession base newel 1 is inserted and is fixing; Base newel 1 is divided into upper and lower two parts, and the bottom is fixed, and can stretch in the bottom in top, and the upper end of base newel 1 promptly forms a swivel chair after inserting the seat support support column; Periphery at base body 5, five feets 3 are being fixed in radial equably welding, feet 3 is made by rigid materials such as iron and steel, its outer end and universal wheel 4 mechanisms are fixedly connected, the special character of this feet 3 is upwards protuberance of its middle part, because the setting of this ridge structure, the position of centre of gravity of five-pointed star swivel chair script body is decreased, the more important thing is, because being applied to the skew force at universal wheel 4 mechanisms place, feet 3 constitutes by downward vertical stress component more, this also just means the power that is passed to the weld of base body 5 and feet 3 and base body 5 by base newel 1, also constitute by downward vertical stress component more, like this, with any one universal wheel 4 is fulcrum, when the user was sitting in the swivel chair, the moment values that described vertical stress component constitutes can be obviously greater than the situation on identical in the background technology or the similar sizes swivel chair pin, and therefore swivel chair is difficult to topple; Outside at feet 3, covering is installed with feet and pounces on wood 2, this feet is pounced on the wood 2 main decoration functions that rise, groove is arranged below it, the geomery of groove just in time fastens feet 3, feet is pounced on wood 2 and is therefore covered to the weld of feet 3 with base body 5 the inner, the outer end covers to the outermost end of feet 3, feet is pounced on wood 2 can be by plastics, metal, multiple material such as timber is made, also can be made into different shape, be included in the profile of protrusion, can make arc as shown in the figure, also can make the rib shape the same with the turning point of its lower support pin 3, feet is pounced between wood 2 and the feet 3 and can be used screw fastening, common feet is pounced on the wood 2 top and sides that only need cover feet 3 and is got final product, and exposes the following feet that can not influence of feet 3 and pounces on wooden 2 decorative effect; Because the base newel about in the of 1 between the parts flexible place dustproof and the needs that keep clean of base newel 1 top, feet 3 and feet pounce on wood 2 above, round base newel 1 circumference, dust cover 6 is being set, dust cover 6 is the cylindrical of hollow, exposes part outside this dust cover 6 tops and be the part of inserting seat support when base newel 1 is connected with seat support.

Obviously, the above-mentioned protuberance of feet 3 not necessarily will be arranged on the center position of feet 3, and promptly this protuberance both can be partial to base body 5 one sides, also can be partial to universal wheel 4 one sides.

Any five-pointed star swivel chair as long as its basic structure is made up of in conjunction with seat support described five-pointed star swivel chair pin, because that it has used described five-pointed star swivel chair pin to improve as base is whole the stability of swivel chair, so also falls into the protection domain of this patent.

Claims

1, a kind of five-pointed star swivel chair pin, comprise that base body (5), bottom are fixed in the base body (5) in order to the base newel (1) that connects seat support and evenly distribute and be fixed on five feets (3) outside the base body (5), one end of each feet (3) is fixed on the side of base body (5), the other end and universal wheel (4) mechanism is fixedly connected, it is characterized in that: every feet (3) mid portion is protuberance upwards, and integral body is the structure that two ends are lower, mid portion is higher.

2, five-pointed star swivel chair pin as claimed in claim 1 is characterized in that: described raised position goes up near its inner at described feet (3), promptly near itself and base body (5) fixed part bit position.

3, a kind of five-pointed star swivel chair is characterized in that: used five-pointed star swivel chair pin as claimed in claim 1 as its base.