CN2524588Y

CN2524588Y - Stackable chair

Info

Publication number: CN2524588Y
Application number: CN 01270703
Authority: CN
Inventors: 蔡秉成
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-14
Filing date: 2001-11-14
Publication date: 2002-12-11
Anticipated expiration: 2011-11-14

Abstract

The utility model discloses a stackable chair which consists of a chair leg, a chair back and a chair seat. The utility model is characterized in that a fixing device which protruds backwards when the chair is folded is provided on a back chair leg. With the fixing device, the utility model can safely and conveniently be used, be conveniently folded and reduce occupied space; meanwhile, the structure of the fixing device can stably fix the chairs stacked together, which offers the user to conveniently transport the stackable chairs and hence to has mass transportation in one time.

Description

A kind of chair that can pile up

Technical field

The utility model relates to foldable chair, the stacked folding seat of putting of specifically a kind of ergosphere.

Background technology

Folding seat mainly is that cushion part can upwards be overturn and folded, and mostly is used in family, office or holds movable public place temporarily; the outdoor meeting that picture is large and medium-sized; because chair has folding function, can arrange convenient in carrying temporarily; and do not take too much space; be subjected to very much popular welcome, but some chair is because weight concentrates on mainly on the cushion, the high and crank that causes of center of gravity appears in regular meeting; the situation that can turn down automatically is so patent 99214213 occurred.X, this patent is by the chair back, seat support and front and back chair pin are formed, the chair back links into an integrated entity with back chair pin, front chair leg part mat pole connects two front chair legs, seat support is a frame supported pedestal, the seat support surface is provided with elastic pad, back side front end two corner mats, one axostylus axostyle and the turn of front chair leg axle pivot, hold two edges to establish dovetail groove after the back side, at seat support, be provided with the bent mechanisms that three mutual pivots of support chip bar connect between the chair pin of front and back, the support chip bar locks respectively in front chair leg pole back, back chair pin medial surface and side inboard, the seat support back side, like this when opening chair, the bending mechanism of three support chip bar compositions just forms firm supporting construction, makes that chair can be owing to crank turns down.

Yet above-mentioned structure still has several shortcomings.The first can only be stacked side by side, can not stack layer by layer, and it two is that the supporting construction of chair only is adapted to the form that the chair leg is a vertical support, purposes is less relatively, its three be the chair back, chair leg of chair when folding, take corresponding space respectively, volume is still bigger when folding, it four is that preceding chair leg and seat support pivot connect, the steadiness that makes the chair leg support reduces, and pivot company headquarters position knows from experience generation with the people and directly contact, and is easy to clamp clothing, it five is that this chair can not be stacked in a large number, and transportation is inconvenient.

In addition, a kind of chair that can be layering is arranged, such as patent 95244578.6 description, or similar structure, be characterized in that the chair leg is a v-shaped structure, the chair back is curved slightly backward, and chair can be layering like this, it is comparatively convenient to transport, but its shortcoming is to fold, can only chair vertically on pile up, though can superpose, but can not reduce the shared space of single chair, in addition, the height that piles up is subjected to the influence of chair pin, the chair back, and De Taigao can not superpose, the chair that is stacked collapses easily, needs in addition fixedly chair during transportation.

So though above-mentioned chair has certain features, but because its structural deficiency, welcome at present, consumer generally accepted be the tubular steel chair that can fold seat support, the steel pipe that this chair is connected together by pivot constitutes the chair leg, in the circular arc that the chair leg upwards formed before the chair back was fixed on, chair leg pivot connects and is supporting seat support, and the bottom of two chair legs has transverse tube to support, with the structure of firm chair leg.This Chair structure is firm, and practical folding convenient can fold the back stacked in multi-layers, convenient transportation, when its shortcoming was the chair stacked in multi-layers, the position between the chair was staggered, can not firmly pile up, when being layering, the repeatability of chair is bad, and the chair that is superimposed has certain gradient, superposes highly more, the chair stability that is superposeed is poor more, overturning easily.Be limited, chair can not superpose very high; Tens chairs that generally can only superpose can not play the problem that minimizing effectively takes up room well, and simultaneously, main points are fixing in addition during the chair transportation of piling up, and a lot of work will be additionally paid in carrying or transportation in large quantities.

Summary of the invention

Therefore, the utility model improves its structure on the basis of above-mentioned chair, make it and to use on safe ready ground, be convenient to again fold, minimizing takes up room, and convenient simultaneously transportation can be carried once in a large number, and chair that can be when not piling up is too high and the phenomenon that occurs collapsing does not need other fixedly article to fix yet.

The utility model is made up of chair leg, the chair back, seat support,

The chair leg: mutual pivot connects between two chair legs, and connects together preceding chair with the seat support pivot respectively

Between two forward foot in a step of leg, be provided with fixing between two rear feet of back leg

The cross bar of support;

The chair back: in the fixed frame that the chair leg upwards forms before being fixed on;

Seat support:, supported by preceding back leg for the platy structure of bracing frame is arranged;

The fixture of the chair that chucking piled up with it when its characteristics were that back leg is provided with chair and folds, this device is arranged on the both sides of chair back leg, stretches out backward when chair folds.

Described fixture is built up in the side of the back leg of chair, and outstanding backward, the rearwardly projecting part of fixture protrudes in the pipe face of chair leg, and preferably its outstanding length equals the axial width of chair leg, can block the chair chair leg on its top when piling up, prevent that chair from sliding.

Described fixture is the brace rearwardly projecting part that extends, brace is L shaped structure, on the chair leg, stretch out backward before one end activity of this structure is fixed on, its bending place is connected on the back leg, the end of the other end is outstanding, when chair was opened, outstanding end was near the chair leg, when folding, rearward stretch out outstanding end, preferably is vertical direction with the chair leg and stretches out.

Cross bar on the described back leg is bent to the rear of chair, and the front portion lengthening of seat support is so that seat support can be closely against the chair back when chair folds.

The structure of the cross bar of described back leg is a U-shaped, and the two ends of cross bar are fixed on two rear foot inboards of back leg, and stretch out to the rear of chair vertical bending back.

The cross bar of chair leg is the U-shaped structure before described, when chair folds before the cross bar of chair leg block the cross bar that back leg stretches out backward.

The chair back of the present utility model is to have certain radian to meet the structure that human body back leans on, and there is the outer rim in order to the enhancing chair back intensity its underpart,

Above-mentioned outer rim is outstanding to the rear of the chair back, and simultaneously, the chair back of chair makes the chair back can block the seat support of another chair when folding against the chair back.

The position that the top of the chair back is connected with fixed frame has in order to fold the hand-held hole of time transportation chair.

Therefore, the utility model improves its structure on the basis of above-mentioned chair, fixture is arranged, make it and to use on safe ready ground, be convenient to fold, minimizing takes up room, the while said structure is fixed overlay chair together firmly, and convenient transportation can be carried once in a large number, and chair that can be when not piling up is too high and the phenomenon that occurs collapsing does not need other fixedly article to fix yet.

The utility model can be by the fixing chair that piles up with it of four anchor points of correspondence, after chair folds, can firmly be stacked, be placed on the transport vehicle and transport, can not only reduce a large amount of folding seat takes up space, and convenient transportation, be particularly suitable for interim large and medium-sized public conference and a large amount of transportations of chair.

Description of drawings

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

Fig. 2 is the side view of the utility model embodiment,

State diagram when Fig. 3 folds for the utility model embodiment,

Fig. 4 is the structure chart of the utility model embodiment brace,

State diagram when Fig. 5 piles up for the utility model embodiment.

Among the figure, 1 is the chair back, and 2 is seat support, and 3 is preceding chair leg, and 4 is front rail, and 5 are the cover of binding foot, and 6 is hand-held hole, and 7 is fixed frame, and 8 is air-vent, and 9 is stator, and 10 is brace, and 11 is back leg, and 12 is rear transverse rod, and 13 is outer rim, and 14 is fixed head, and 15 is screw.

The specific embodiment

Shown in Figure 1, the utility model is made of the chair back 1, seat support 2, forward and backward chair leg (3,11), forward and backward cross bar (4,12) and brace 10, brace 10 pivots connect forward and backward chair leg (3,11), the pivot again of forward and backward chair leg connects seat support 2, in the inverted U-shaped fixed frame 7 that the chair leg upwards curved before the chair back 1 was fixed on, the chair leg is made by iron pipe, preceding chair leg is an inverted U-shaped, fixed frame 7 is formed at top, and the chair back is arranged with bolting, preceding chair leg 3 bottoms are fixed with front rail 4, and the end of preceding chair leg 3 is coated with the cover 5 of binding foot in order to prevent to wear and tear; The chair back 1 designs according to the human body back physiological structure, certain interior curved arc degree is arranged, so that the people can cosily lean on, form a hand-held hole 6 between its top and the fixed frame, to make things convenient for the transporter when folding chair, can be with portable this utility model, the lower end has in order to strengthen the outer rim of chair back intensity, simultaneously, also have even distribution and air-vent 8 on the chair back in order to breathe freely, two middle side parts of preceding back leg are provided with brace 10, back leg before the brace pivot connects, L-shaped structure, the front end pivot is connected on the preceding chair leg, the bending place pivot of L shaped structure is connected on the back leg, and the rear portion that pivot connects the place is a stator 9, so that chair fixing another chair that piles up with it when folding.Below preceding back leg and brace pivot company headquarters, preceding back leg connects with seat support 2 pivots again, and seat support 2 lengthenings make it can be against the chair back 1 when chair folds; The bottom of preceding chair leg 3 is fixed with front rail 4, front rail 4 is inverted U-shaped, its bending angle is 90 °, and be fixed on the branch cloth cover of two preceding chair legs, the bottom of back leg 11 is fixed with rear transverse rod 12, and the structure of rear transverse rod 12 is consistent with front rail, it and back leg 11 vertical fixing are together, so that chair is folding when piling up, rear transverse rod 11 can just pass and engage front rail, prevents the slip of chair.

When chair is opened, brace 10 in opened condition, the stator 9 on the brace drew in also and pressed close to back leg this moment, can not stretch out backward, prevented scratch or caught on other objects, the rear portion of chair leg pipe before withstand the upper end of back leg 11.

As shown in Figure 2, the lower end outer rim 13 of the chair back 1 is outstanding backward, in the intensity that strengthens the chair back simultaneously, can engage the chair back and the seat support of the chair that piles up with it when folding, stator 10 is the part of brace, its direction along back leg when chair is opened stretches, and stretch out at the rear portion to back leg when chair folds, 11 one-tenth 90 ° of angles of rear transverse rod 12 and back leg.

Above-mentioned stator 10 also can be taked other mode, as independent setting.

Above-mentioned rear transverse rod 12 also can take other angle to cooperate with front rail 4.

Shown in Figure 3, the stator 9 of brace one end protruded in back leg 11 when chair folded, its outstanding length preferably with the consistency of thickness of preceding chair leg, behind seat support 2 lengthenings, just align with the outer rim 13 of the chair back 1, make it when folding, to block the seat support 2 of a chair.

The chair back 1 is provided with outstanding fixed head 14, fixed head 14 be distributed in the chair back around, just corresponding, and the chair back is fixed on the frame structure by screw 15 with fixed frame 7.

Shown in Figure 4, brace 10 is an overall structure with stator, and they are L-shaped, and the two ends of brace 10 are provided with connecting hole, and pivot connects forward and backward chair leg respectively, and stator 9 is a short-movie, stretches out from the brace 10 and the junction of back leg 11.

Shown in Figure 5, when two chairs piled up, next outer rim 13, stator 9, rear transverse rod 12 of opening the chair back of chair blocked the seat support 2 of a last chair, preceding chair leg 3, front rail 4 respectively from four orientation, fix tightly.

Claims

1, a kind of chair that can pile up, the utility model is made up of chair leg, the chair back, seat support,

The chair leg: between two chair legs mutually pivot connect, and connect together with the seat support pivot respectively, between two forward foot in a step of preceding chair leg, be provided with the cross bar of fixed support between two rear feet of back leg;

2, according to the described chair that can pile up of claim 1, it is characterized in that fixture is built up in the side of the back leg of chair, and it is outstanding backward, the rearwardly projecting part of fixture protrudes in the pipe face of chair leg, the axial width that its outstanding length equals the chair leg can block the chair chair leg on its top when piling up.

3, according to the described chair that can pile up of claim 2, it is characterized in that described fixture is the brace rearwardly projecting part that extends, brace is L shaped structure, on the chair leg, stretches out the bending place backward and is connected on the back leg before an end activity of this structure is fixed on, the end of the other end is outstanding, when chair was opened, outstanding end was near the chair leg, when folding, rearward stretch out outstanding end, and be vertical direction with the chair leg and stretch out.

4, according to the described chair that can pile up of claim 1, it is characterized in that the cross bar on the described back leg is bent to the rear of chair, the front portion lengthening of seat support is so that seat support can be closely against the chair back when chair folds.

5, according to the described chair that can pile up of claim 4, the structure that it is characterized in that the cross bar of back leg is a U-shaped, and the two ends of cross bar are fixed on two rear foot inboards of back leg, and stretch out to the rear of chair vertical bending back.

6, according to claim 1 or the 5 described chairs that can pile up, it is characterized in that described before the cross bar of chair leg be the U-shaped structure, when chair folds before the cross bar of chair leg block the cross bar that back leg stretches out backward.

7, according to the described chair that can pile up of claim 1, it is characterized in that the chair back is to have certain radian to meet the structure that human body back leans on, there is the outer rim in order to the enhancing chair back intensity its underpart,

8, according to the described chair that can pile up of claim 7, it is characterized in that above-mentioned outer rim is outstanding to the rear of the chair back, simultaneously, the chair back of chair makes the chair back can block the seat support of another chair when folding against the chair back.

9,, it is characterized in that position that the top of the chair back is connected with fixed frame has the hand-held hole of transportation chair when folding according to the described chair that can pile up of claim 1.