CN101773341B

CN101773341B - Improved folding chair capable of transverse contracting

Info

Publication number: CN101773341B
Application number: CN2009101108991A
Authority: CN
Inventors: 陈德隆
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-14
Filing date: 2009-01-14
Publication date: 2012-05-09
Anticipated expiration: 2029-01-14
Also published as: CN101773341A

Abstract

The invention provides an improved folding chair capable of transverse contracting. The folding chair comprises two outer frames, two cross folding structures, two cushion support rods, a cushion, two backrest support rods and a backrest, wherein each outer frame is in a rectangular shape consisting of two horizontal rods and two vertical rods, each vertical rod is provided with a convex stop block; front moving components are sleeved on the two vertical rods which are positioned at the front side, and rear moving components are sleeved on the two vertical rods which are positioned at the rear side; the two cross folding structures are arranged between the two outer frames, the pivot end on each cross folding structure is pivoted with the two front moving components and the two rear moving components respectively, while the pivot end under each cross folding structure is pivoted with a position close to the lower end of each vertical rod correspondingly; two ends of each cushion support rod are connected to the front moving components and the rear moving components respectively; and the two backrest support rods are connected to the rear sides of the two outer frames respectively. The folding chair has the advantages of firm and simple structure, automatically and quickly contracted backrest support rods along with folding of the cross folding structure, body seat posture accordance and the like.

Description

A kind of improved folding seat that laterally folds

Technical field

The present invention relates to folding seat, specifically be meant a kind of improved folding seat that laterally folds.

Background technology

Referring to figs. 1 through Fig. 5; Be original folding chair structure that can laterally fold, mainly comprise two main frames 61, two inner frames 62 and four bow type shell fragments 63, wherein; These two main frames, 61 outward appearances are " mouth " word shape and vertically are arranged at the left and right sides; And two inner frames, 62 outward appearances are " ㄇ " word shape, and four longitudinal edges of this two inner frame 62 are staggered at angle each other in twos, and the appropriate location of its four longitudinal edges upper end flexibly connects through the position, stage casing of a bow type shell fragment 63 and two main frames, 61 4 longitudinal edges respectively; The lower end of two inner frames, 62 4 longitudinal edges then articulates with the bottom of two main frames, 61 4 longitudinal edges, and cushion 64 then directly is installed between two inner frames, the 62 top horizontal edges.

The above-mentioned folding seat that laterally folds has following shortcoming:

One, upon deployment,, and cooperate Fig. 3, Fig. 4 with reference to Fig. 1, Fig. 2; Must two hold the horizontal edge of inner frame 62 upper ends, the application of force presses down then, and the elastic displacement through bow type shell fragment 63 moves to displacement with the position of displacement point 1 and puts 2 72 position; When the position of displacement point 3 73 is arrived in the position of displacement point 2 72,, will move to the position of displacement point 73 moment because of the elasticity of bow type shell fragment 63; This moment bow type shell fragment 63 with inner frame 62 epimeres partly 74 of formed angles from large to small, this angle 74 will be for becoming the stealthy killer of pinch off finger, promptly in the time will strutting folding seat; When normal the use, two hands must be held two inner frames, 62 upper end horizontal edge centre and press down, so just can avoid the danger of angle 74 pinch ofves finger; The problem person of being to use might be held in the leading edge place of two inner frames, 62 upper end horizontal edges, and at this moment, partly finger will fall into 74 of this angles; So will cause fearful severed finger consequence, the project organization of this kind blemishes in fact is a disappearance greatly.

Two, when folding, with reference to Fig. 1, Fig. 2; And cooperate Fig. 3, Fig. 4, because of the relation of bow type shell fragment 63, put 2 72 position in order to let the position of displacement point 3 73 move to displacement; Therefore must come inwardly to fold inner frame 62 with sizable strength, must borrow bottom horizontal edge that foot bottom steps on main frame 61 as stable basis, to make things convenient for to two inner frames, the 62 inside application of forces; This folding is not only complicated, and when two held the horizontal edge of two inner frames, 62 upper ends, the back of the hand also can receive the collision of main frame 61; The application of force is limited in the time of will causing folding, and produces the situation such as difficulty that fold.

Three, when assembling, the two ends of four bow type shell fragments 63 articulate with main frame 61 and inner frame 62 respectively each other; What therefore the position of each pivoting point must be suitable is accurate; As long as there is the pivoting point of a bow type shell fragment 63 that error is arranged, will have influence on the running of other three bow type shell fragments 63, so accurately four bow type shell fragment 63 assembling requirements; Can cause production efficiency to reduce greatly, thereby influence the market competitiveness greatly.

Four, with reference to Fig. 1 and Fig. 4, under using for a long time, its user's weight is leaned on the support of four bow type shell fragments 63 fully, and each bow type shell fragment 63 bears the power on the vertical direction with the mode of nearly level, and very easily distortion will cause the paralysis of entire mechanism.

Five; Cushion 64 directly is installed between two inner frames 62; Two inner frames 62 then are included in therebetween by two main frames 61, so its cushion area and length receives inner frame 62 restrictions, and can't extend out; Make occupant's both legs collide the front-end edge (as shown in Figure 5) of two inner frames 62 easily, and do not have comfort.

With reference to Fig. 6, Fig. 7, for the applicant in order to improve above-mentioned prior folding structure of chair, the novel patent " a kind of director's chair structure " that the Taiwan application case of before the application, being applied for is number No. 097211655; Its structure consists predominantly of bar 01, foot lever 02, guide rod 03, backrest support rods 04 and connecting plate 05; Wherein, bar 01 wears guide rod 03 with foot lever 02 through inside and connects, and each fixed cover is provided with a fixed cover 06 on bar 01 and foot lever 02 shaft; And connecting plate 05 interconnection in twos; And form U font and the staggered serial verb construction of inverted u-shaped, the two ends of this serial verb construction are connected on the fixed cover 06, when overall structure folds; Serial verb construction drives on the bar 01 and carries; The length that guide rod 03 promptly exposes and provides when folding to be risen makes bar 01 and foot lever 02 still keep connection status, and backrest support rods 04 is then accomplished on bar 01 through manual rotation closing and folded.

Yet the applicant thinks that said structure still fails to reach perfect, so the applicant has done further improvement to this scheme.

Summary of the invention

The present invention provides a kind of improved folding seat that laterally folds, and its main purpose is to overcome the various defectives of the above-mentioned folding chair structure that can laterally fold originally, and applicant's previous application case is improved.

The present invention adopts following technical scheme: a kind of improved folding seat that laterally folds; Comprise two outside frameworks, two cross folding structures, two cushions support bars and be connected in cushion, two backrest support rods between this two cushions support bar and be connected in backrest between this two backrest support rods; Each outside framework is formed a mouthful word shape by two horizon bars and two vertical rods respectively; Each vertical rod appropriate location all is provided with the limited block that protrudes out; Two vertical rods that are positioned at the front side are sheathed with preceding moving member slidably in corresponding limited block top, and two vertical rods that are positioned at rear side then are sheathed with the back moving member in corresponding limited block top slidably; Two cross folding structures are arranged between two outside frameworks, and each cross folding mechanism has two pairs of pivot ends up and down, moving member and two back moving members before top pivot end is articulated in two respectively, and following pivot end correspondence is articulated in the nearly bottom of each vertical rod; The two ends of each cushions support bar are connected on preceding moving member and the back moving member; Two backrest support rods are connected to two outside framework rear sides.

Said cross folding mechanism comprises four curved bars; Two chi structures arranging about these four curved bars form; Wherein, Two interconnected and links that lay respectively at curved bar in the different chi structures are bending, make the coupling part form fillet, form a U font and the structure that reverse U shape interlocks.

The leading section of said cushions support bar extends forward, and this extension forms a kink under oblique.

The nearly rear side corner, below of said each outside framework upper end horizon bar convexes with a backrest support rods contiguous block; Each backrest support rods comprises an erection seat and is connected on this erection seat and upwardly extending support bar, and this erection seat is provided with one and can be surrounded by half in the locating slot of the nearly upper end of corresponding vertical rod rear side and be positioned at these locating slot both sides and extends two swing arms that are connected with said backrest support rods contiguous block forward.

Two swing arms of said apparatus seat are connected with said backrest support rods contiguous block through a connection piece, and this connector is " Jiong " shape, and its both ends and said backrest support rods contiguous block articulate, and two swing arms of the two ends of intermediate portion and said erection seat articulate.

Two swing arms of said apparatus seat also can directly be articulated on the said backrest support rods contiguous block; Connect through a connecting rod between this erection seat and the corresponding back moving member; This connecting rod one end and erection seat articulate, and the other end also is connected with said back moving member is rotatable slidably.

The bottom surface of said apparatus seat and two swing arms thereof forms one by the inclined-plane of the back lower place towards the front upper place extension.

The position of the cross folding mechanism in the vertical direction of said front side is lower than the cross folding mechanism of rear side.

Can know that by above-mentioned description compare with prior art, the present invention has following advantage to structure of the present invention: one, outside framework of the present invention is one-body molded, and is comparatively firm; Two, of the present invention before moving member can directly slide up and down with the back moving member in vertical rod so that two cross folding mechanisms amount to, and do not need to establish in addition again guide rod, structure is simplified more; Three, folding seat of the present invention folds constantly, because of the rise inclined-plane of the erection seat touch back support bar bottom of back moving member, makes the back support bar rotate closing forward on outside framework, thereby can fold fast automatically; Four, the cross folding mechanism of rear side of the present invention is higher than the cross folding mechanism of front side, and forms low structure before the back height, meets human body to take posture, makes occupant's huckle below be difficult for the cross folding mechanism of collision front side and produces sense of discomfort.

Description of drawings

Fig. 1 is the three-dimensional expanded view that laterally folds after chair is removed cushion and backrest of the prior art;

Fig. 2 laterally folds the solid that chair removes behind cushion and the backrest and folds figure for of the prior art;

Fig. 3 is the folding sketch map that laterally folds after chair is removed cushion and backrest of the prior art;

Fig. 4 is the expansion action sketch map that laterally folds after chair is removed cushion and backrest of the prior art;

Fig. 5 is the perspective view that laterally folds chair of the prior art;

Fig. 6 is the three-dimensional expanded view after applicant's previous Taiwan patent application case number No. 097211655 " a kind of director's chair structure " is removed the cushion and the chair back;

Fig. 7 is that applicant's previous Taiwan patent application case number No. 097211655 " a kind of director's chair structure " dismounting cushion and the solid behind the chair back fold figure;

Fig. 8 is the three-dimensional expanded view of the embodiment of the invention one;

Fig. 9 is the front view of the embodiment of the invention one;

Figure 10 is the perspective view after the embodiment of the invention one folds;

Figure 11 is the front view after the embodiment of the invention one folds;

Figure 12 is the partial sectional view that the embodiment of the invention one shows one of back support bar and outside framework annexation;

Figure 13 is two the partial sectional view that the embodiment of the invention one shows back support bar and outside framework annexation;

Figure 14 is the side view of the embodiment of the invention one;

Figure 15 folds the side view of process for the embodiment of the invention one;

Figure 16 is the three-dimensional exploded view of the embodiment of the invention one back support bar and outside framework;

Figure 17 is the perspective view behind the embodiment of the invention one assembling cushion and the chair back, and dotted line is the cushion and the chair back among the figure;

Figure 18 is the annexation schematic perspective view of the embodiment of the invention two back support bars and outside framework;

Figure 19 is the side view of the embodiment of the invention two;

Figure 20 is the side view of the embodiment of the invention two collapse states.

The specific embodiment

The specific embodiment of the present invention is described with reference to the accompanying drawings.

Embodiment one

A kind of improved folding seat that laterally folds; With reference to Fig. 8 and Figure 17; Comprise two outside frameworks 10, two

cross folding structures

21 and 22, two cushions support bars 30 and be connected in cushion, two backrest support rods 40 between this two cushions support bar 30 and be connected in backrest between this two backrest support rods 40 that this cushion and backrest are shown in the dotted line among Figure 17.

With reference to Fig. 8, Figure 10, Figure 14, Figure 15 and Figure 17; Each outside framework 10 is formed a mouthful word shape by upper and lower two

horizon bars

11 and 12 of front and back two vertical rods respectively; Each vertical rod 12 appropriate location all is provided with the limited block 121 that protrudes out; Be positioned at two vertical rods 12 moving member 13 before its limited block 121 tops are sheathed with slidably of front side; 12 of two vertical rods that are positioned at rear side are sheathed with back moving member 14 slidably in its limited block 121 tops, receive this limited block 121 restrictions, and preceding moving member 13 can only slide in the part of each vertical rod 12 above limited block 121 with back moving member 14.

With reference to Fig. 8, Fig. 9 and Figure 17; Two

cross folding structures

21,22 are arranged between two outside frameworks 10; Each

cross folding mechanism

21,22 all has upper and lower two pairs of pivot ends; Above pivot end be articulated in moving members 13 and two back moving members 14 before two respectively, following pivot end correspondence is articulated in each vertical rod 12 near bottom, before the forward and backward two ends of each cushions support bar 30 are connected to moving member 13 and after on the moving member 14.This

cross folding mechanism

21,22 comprises four curved bars 20 respectively; Two chi structures arranging about these four curved bars 20 form; Wherein, Two interconnected and links that lay respectively at the curved bar 20 in the different chi structures are bending, make the coupling part form fillet, form a U font and the structure that reverse U shape interlocks.The position of cross folding mechanism 21 in the vertical directions of front side is lower than the cross folding mechanism 22 of rear side.

With reference to Fig. 8 to Figure 11 and Figure 14, Figure 15 and Figure 17, the leading section of cushions support bar 30 extends forward, and this extension forms a kink under oblique.

With reference to Figure 12, Figure 13 and Figure 16; The nearly rear side corner, below of the horizon bar 11 of said each outside framework 10 upper end convexes with a backrest support rods contiguous block 111; Each backrest support rods 40 comprises an erection seat 42 and is plugged on this erection seat 42 and upwardly extending support bar 41, and this erection seat 42 is provided with one and can be surrounded by half in the locating slot 420 of corresponding vertical rod 12 near upper end rear sides and be positioned at these locating slot 420 both sides and two swing arms 421 being connected with said backrest support rods contiguous block 111 of extension forward.Two swing arms 421 of this erection seat 42 are connected with said backrest support rods contiguous block 111 through a connection piece 43; This connector 43 is " Jiong " shape; Its both ends and said backrest support rods contiguous block 111 articulate, and two swing arms 421 of the two ends of intermediate portion and said erection seat 42 articulate.Figure 12, Figure 13 have shown the two states of back support bar 40, and Figure 12 has shown that back support bar 40 is in vertical state, and Figure 13 has shown that back support bar 40 is in sweptback state.

With reference to Figure 14, Figure 15 and Figure 10; The bottom surface of said erection seat 42 and two swing arms 421 thereof forms one by the inclined-plane of the back lower place towards the front upper place extension; In the process of folding; Back moving member 14 moves up, and rotates through this erection seat 42 of this pushed, back support bar 40 is rolled over forward be against outside framework 10 tops.

Embodiment two

The primary structure of present embodiment is identical with embodiment one, and its difference is the syndeton of back support bar 40 and outside framework 10.With reference to Figure 18; Two swing arms of erection seat 42 also directly are articulated on the said backrest support rods contiguous block 111; Connect through a connecting rod 50 between this erection seat 42 and the corresponding back moving member 14; These connecting rod 50 1 ends articulate through axis hole 51 and axis hole 422 on the erection seat 42, and the other end cooperates through bar hole 52 and nose bar 141 on the moving member 14 of said back to be realized rotatablely also slidably being connected.

When this folding seat folded, with reference to Figure 19, Figure 20, back moving member 14 moved up, and rotated forward through connecting rod 50 thrust unit seats 42, back support bar 40 is rolled over forward be against on the outside framework 10.

Above-mentionedly be merely the specific embodiment of the present invention, but design concept of the present invention is not limited thereto, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.

Claims

1. improved folding seat that laterally folds; Comprise two outside frameworks, two cross folding structures, two cushions support bars and be connected in cushion, two backrest support rods between this two cushions support bar and be connected in backrest between this two backrest support rods; It is characterized in that: each outside framework is formed a mouthful word shape by two horizon bars and two vertical rods respectively; Each vertical rod appropriate location all is provided with the limited block that protrudes out; Two vertical rods that are positioned at the front side are sheathed with preceding moving member slidably in corresponding limited block top, and two vertical rods that are positioned at rear side then are sheathed with the back moving member in corresponding limited block top slidably; Two cross folding structures are arranged between two outside frameworks, and each cross folding mechanism has two pairs of pivot ends up and down, moving member and two back moving members before top pivot end is articulated in two respectively, and following pivot end correspondence is articulated in the nearly bottom of each vertical rod; The two ends of each cushions support bar are connected on preceding moving member and the back moving member; Two backrest support rods are connected to two outside framework rear sides.

2. a kind of improved folding seat that laterally folds as claimed in claim 1; It is characterized in that: said cross folding mechanism comprises four curved bars; Two chi structures arranging about these four curved bars form, wherein, two interconnected and links that lay respectively at curved bar in the different chi structures are bending; Make the coupling part form fillet, form a U font and the structure that reverse U shape is staggered.

3. a kind of improved folding seat that laterally folds as claimed in claim 1 is characterized in that: the leading section of said cushions support bar extends to form a kink under oblique forward.

4. a kind of improved folding seat that laterally folds as claimed in claim 1; It is characterized in that: the nearly rear side corner, below of each outside framework upper end horizon bar convexes with a backrest support rods contiguous block; Each backrest support rods comprises an erection seat and is connected on this erection seat and upwardly extending support bar, and this erection seat is provided with one and can be surrounded by half in the locating slot of the nearly upper end of corresponding vertical rod rear side and be positioned at these locating slot both sides and extends two swing arms that are connected with said backrest support rods contiguous block forward.

5. a kind of improved folding seat that laterally folds as claimed in claim 4; It is characterized in that: two swing arms of said erection seat are connected with said backrest support rods contiguous block through a connection piece; This connector is " Jiong " shape; Its both ends and said backrest support rods contiguous block articulate, and two swing arms of the two ends of intermediate portion and said erection seat articulate.

6. a kind of improved folding seat that laterally folds as claimed in claim 4; It is characterized in that: two swing arms of said erection seat are articulated on the said backrest support rods contiguous block; Connect through a connecting rod between this erection seat and the corresponding back moving member; This connecting rod one end and erection seat articulate, and the other end also is connected with said back moving member is rotatable slidably.