CN2587255Y

CN2587255Y - Simplified structure for armrest of foldable chair

Info

Publication number: CN2587255Y
Application number: CN 02289151
Authority: CN
Inventors: 王腾毅; 吴昌益
Original assignee: SHEN-TAI INDUSTRIAL Co Ltd
Current assignee: SHEN-TAI INDUSTRIAL Co Ltd
Priority date: 2002-12-04
Filing date: 2002-12-04
Publication date: 2003-11-26
Anticipated expiration: 2012-12-04

Abstract

The utility model relates to a simplified structure for each armrest of a foldable chair. An armrest is formed into a U-shaped hollow cross-sectional shape in an integral injection molding mode by materials of plastic materials, etc., wherein the inner bottom surface of the armrest can be at least pre-molded with a central rib, and the end surface of the central rib is directly molded with a front pin joint piece and a back pin joint piece which are used for jointing front and back chair legs; the central rib is strengthened by a reinforcing structure which floats from the inner bottom surface of the armrest in integration mode. Thus, the improved armrest can be molded in an integral molding mode, the front and the back chair legs can be assembled without other fittings, and the armrests have the advantage of small volume after folding.

Description

Folding chair handrail simplified structure

Technical field

The utility model relates to a kind of folding chair handrail simplified structure, instigates the folding chair that is used for dwindling the volume of timber especially, for the structure of further simplifying this type of handrail.

Background technology

Traditional Chinese chair is fixed, and not only during manufacturing expenses, finished product also quite takes up space for it.In the industrial and commercial society that this kind seized every minute and second, conventional fixed formula seat no matter volume production manufacturing or packing transports and all is difficult to abreast of the times demand.

Therefore, but folding becomes the folding chair of small size is the general aspect that becomes general current version seat.This type of benefit of commonly using folding chair is made and is not used or when transporting, its folding can be become flat for convenient.Deposited with less space but a large amount of seats that are made as folding structure are convenient on the one hand, the aspect then is after manufacturer makes finished product in addition, can transport with the cost packing of less expensive.Because the size of the volume after folding chair folding decision manufacturer and associated inventory merchant's cost, how making its folding volume of timber with more miniaturization is to become an important design problem.

Be disclosed in United States Patent (USP) and be a wherein example for 6217111B1 number, it mainly is to become the staggered state that shakeouts when making the front and back chair pin folding of this type of folding chair, whole folding chair thereby can be folded into the smaller lateral width when a large amount of folding chairs are folded mutually, can effectively dwindle the volume of timber that transports of most folding chairs.Chair pin upper end is combined in the handrail of limited section width before and after the folding chair but make, and staggeredly will make before and after these folding of chair pin the time shakeouts and have enough structural strengths, but can make the armrest relative complexization, truly has necessity of being improved.

Summary of the invention

The purpose of this utility model is to provide a kind of folding chair handrail simplified structure, and it can further dwindle at this kind on the folding chair of the folding volume of timber simplifies armrest, makes its manufacturing more efficient and convenient, and reduces its cost of manufacture.

For reaching above-mentioned purpose, the utility model handrail can be an inverted U hollow section shapes with plastic cement and so on material one ejection formation, in above-mentioned handrail inner bottom surface moulding at least in advance one central rib, and directly mold in order to a pin-jointing piece before engaging one of front and back chair pin and a back pin-jointing piece at this central rib end face, and this central rib is strengthened with the reinforced structure that is floated by the inner bottom surface one.

This reinforced structure comprises the continuous intersection reinforcing chip of adjacent central rib both sides, and is positioned at the reinforcing chip in length and breadth of Inner Front End and the intersection reinforcing chip of rear end.And the side surface in addition that preceding pin-jointing piece and back pin-jointing piece do not engage front chair leg and back chair pin also adds extra reinforcing chip.

From the above mentioned, the utility model handrail is one-body molded by shoot mode, and almost need not under other accessories, chair pin before and after can assembling, and make it possess the advantage of small size after the folding, the manufacturing of folding chair element and assembling are also more efficient and convenient.

Description of drawings

Fig. 1 is the utility model preferred embodiment stereogram;

Fig. 2 is the stereogram of bottom view of the 1st figure;

Fig. 3 is that the 1st figure is installed in the folding chair schematic diagram;

Fig. 4 is the side view of the 3rd figure of continuing;

Fig. 5 shows the wherein stereogram of bottom view of a side of the 3rd figure;

Fig. 6 shows the folded state diagram of the 3rd figure;

Fig. 7 is the side view of the 6th figure.

The specific embodiment

At first please join Fig. 1, Fig. 2, in illustrated embodiment, the utility model handrail 10 can be with plastic cement and so on material one ejection formation, and whole handrail 10 roughly is shaped to an inverted U hollow section shapes.

In above-mentioned handrail 10 inner bottom surface 11 moulding at least in advance one central rib 12, and directly a pin-jointing piece 13 and a back pin-jointing piece 14 before these central rib 12 end faces mold one, and this central rib 12 is strengthened with the reinforced structure that is floated by inner bottom surface 11 one.

In the diagram preferred embodiment, the reinforced structure of above-mentioned central rib 12 comprises the continuous intersection reinforcing chip 15,16 of adjacent central rib 12 both sides, and is positioned at the reinforcing chip in length and breadth 17 of Inner Front End and the intersection reinforcing chip 18 of rear end.This reinforced structure mode is also taken into account the force structure intensity of handrail 10 bodies and central rib 12 simultaneously except that being suitable for moulding.

As shown in Figure 3, Figure 4, the utility model articulates axis hole 19 thereafter to engage the chair back 20 according to above-mentioned improvement armrest except that seeing through, it more can connect the upper end of front chair leg 30 and back chair pin 40, and assembles a chair cushion 50 between two relative handrails 10, with the required folding chair of common formation.

Now please join Fig. 5, Fig. 6, Fig. 7, pin-jointing piece 13 and back pin-jointing piece 14 before the upper end of front chair leg 30 and back chair pin 40 can be articulated in respectively.In illustrated embodiment, front chair leg 30 upper ends are articulated in preceding pin-jointing piece 13 inboards, and then the upper end of chair pin 40 then is articulated in pin-jointing piece 14 outsides, back.A structural design thus, front chair leg 30 and back chair pin 40 as Fig. 6, folding state shown in Figure 7 under flush placement about being, but not fold mutually up and down, the lateral thickness (being that its side is wide) after whole folding chair folding diminishes, volume thereby can effectively be reduced.

In illustrated embodiment, the side surface in addition that preceding pin-jointing piece 13 and back pin-jointing piece 14 do not engage front chair leg 30 and back chair pin 40 also can add extra reinforcing chip 131 (consulting Fig. 5).

The utility model handrail thereby can be one-body molded, and almost need not under other accessories by shoot mode, chair pin before and after can assembling, and make it possess the advantage of small size after the folding, the manufacturing of folding chair element and assembling are also more efficient and convenient.

Above illustrated embodiment only with for conveniently illustrating, is not in a limitative way, not from this creation spirit category, be familiar with this industry skill personage various simple and easy distortion and the modification that can do, all must include in the application's claim.

Claims

1, a kind of folding chair handrail simplified structure, it is characterized in that: this handrail is one-body molded with plastic cement to be an inverted U-shaped hollow section shapes, in above-mentioned handrail inner bottom surface moulding at least in advance one central rib, and directly this central rib end face mold in order to chair pin before and after engaging one before a pin-jointing piece and a back pin-jointing piece, the one-body molded reinforced structure that the reinforcement central rib is arranged of handrail inner bottom surface.

2, folding chair handrail simplified structure according to claim 1, it is characterized in that: this reinforced structure comprises the continuous intersection reinforcing chip of adjacent central rib both sides, and is positioned at the reinforcing chip in length and breadth of Inner Front End and the intersection reinforcing chip of rear end.

3, as folding chair handrail simplified structure as described in the claim 2, it is characterized in that: the side surface in addition that preceding pin-jointing piece and back pin-jointing piece do not engage front chair leg and back chair pin adds extra reinforcing chip.