CN2897040Y

CN2897040Y - Multifunctional chair

Info

Publication number: CN2897040Y
Application number: CN 200620100491
Authority: CN
Inventors: 胡听涛
Original assignee: SHENGE CHAIR IND CO Ltd NINGBO
Current assignee: SHENGE CHAIR IND CO Ltd NINGBO
Priority date: 2006-01-19
Filing date: 2006-01-19
Publication date: 2007-05-09
Anticipated expiration: 2016-01-19

Abstract

A multipurpose seat includes a seat body, which is characterized in that the back rest of the seat body can be divided into two parts: the upper part for turning back and the low part for installing back. Both sides of the lower end of the connecting rod are articulated at the middle and upper part of installing back and the upper end of the connecting rod is articulated at the low end of turning-back part. The fixed bolts in both sides of installing back inlay in the chutes with location holes are provided at the both sides of turning back, the fixed bolts are clearance fit with the runner. The back rest can be reversed as a desk. The seat has the advantages of simple and reasonable structure, convenient usage, proper cost and easy production.

Description

Multifunction seat

Technical field

The utility model relates to a kind of multifunction seat.

Background technology

Continuous progress along with science and technology, at present in various cinemas, theater or gymnasium, public places such as assembly hall use the seat that can overturn widely, when using, seat can erect and use, and obsolete the time, seat can use in overturning, reduce shared space, and be convenient to spectators and promptly evacuate, the patent No. is 98247270.6 Chinese patent " a kind of Electric turnover chair of automatic lock-bit ", its chair pin is fixed on the base and can rotates around its D place, bottom, bent connecting rod one end of one bending and chair pin are articulated in the A place, the other end and rotating plate are articulated in the C place, the other end B of rotating plate is then rotated by motor-driven, the Via connecting rod drives the rotation of chair pin digs chair, when chair dig put in place after, described bent connecting rod, rotating plate is spacing, this moment, described C crossed the extended line of described A B line, it can make falling of tipping-up chair, dig all and finish automatically, and it is dig back lock-bit automatically at chair, saved greatly manually, and simple for structure, convenient to use, the place of its blemish in an otherwise perfect thing is that the whole basically load-bearing of the weight of chair body are on the shaped steel of the heaviness of chair pin, and the seat form also is restricted, and simultaneously, makes the bedframe of tipping-up chair stressed on the whole balanced inadequately, and in the chair folding process, the chair body can not be out of shape, and overall volume is bigger than normal, and is highly higher, take up space more, be unfavorable for actual use; In folding process, line shaft does not have dynamic balance mechanism to help.So it is stressed very big, cause motor must adopt the motor of big moment to drive, influence manufacturing cost, also shorten the service life of motor, and obviously there is a common fault, be exactly that seat uses as just chair, can not use as other functions such as desks, limited promoting the use of of chair, particularly in public arenas such as gymnasium, assembly halls, sometimes also through being commonly used to meeting, need furnish desk in the front of seat chair, supply the user to make and be used for putting article, so, need us that seat is improved design.

Summary of the invention

Technical problem to be solved in the utility model provide a kind of chair back can overturning as desk use, multifunction seat simple and reasonable, easy to use.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of multifunction seat, it includes the chair body of seat, the chair back that it is characterized in that the chair body is divided into the two parts up and down that can fold, top is for turning over back portion and bottom for back portion is installed, the connecting rod lower end of both sides is to be hinged on the middle and upper part that back portion is installed rotationally, and the upper end of connecting rod also is to be hinged on the lower end of turning over back portion rotationally, and install the back portion both sides fixedly pin be to be plugged in the chute that turns over back portion both sides, band locating hole, fixedly pin is activity with chute and cooperates.

Described turning between back portion and the installation back portion is provided with locking device, locking device structure is that the downside that turns over back portion is provided with lockhole, be provided with and fixed sliding seat and back portion is installed, slide block is installed in the sliding seat, having inclined-plane and the slide opening of dead bolt lower end in the slide block carries out the inclined-plane and conflicts and cooperate, be supported with spring between slide block and the fixed head, the slide block inner end is carried out spacing with nut, simultaneously, install back portion by locating rack setting can telescopic movable dead bolt, it makes to turn over back portion and back portion is installed and locks, and avoids overturning, and is easy to use.

Described chute, lockhole are made on the slide assembly, and chute is distributed in both sides, and lockhole is arranged on the centre, and slide assembly is screwed and is connected on the backboard that turns over back portion, and convenient the manufacturing reduces cost.

Described sliding seat is arranged on the fixed head, and the fixed head setting is fixed between the dorsal column that back portion is installed, carry on the back the next plate and be fixedly connected on the outside of fixed head, the installing hole of sliding seat is just opened in the centre position of the next plate of the back of the body and with the through hole of fixed head and is communicated with, slide block is exposed just becomes button part, and its ease of assembly is made.

The thickness of the next plate of the described back of the body is basic consistent with the back plate thickness of turning over back portion, open and install under the back portion fit-state turning over back portion, the backboard that turns over back portion is attached on the dorsal column that back portion is installed, and the backboard outer surface is with to carry on the back the next plate outer surface concordant, rational in infrastructure, flat appearance is attractive in appearance.

Described chair body has switching mechanism, switching mechanism is that frame base is fixed on the grandstand, the dorsal column lower end, both sides that back portion is installed is that rotating being movably hinged is connected with base, the middle and upper part of dorsal column is that rotating being movably hinged is connected with the rear end of arm-rest frame, the forward down position of arm-rest frame is that rotating being movably hinged is connected with the upper end of column separately, the lower end of column is that rotating being movably hinged is connected with base, make base, dorsal column, arm-rest frame, column has constituted movable quadric chain, the position, middle and lower part of column and an end of bent connecting rod adopt rotating being articulated and connected, the other end of bent connecting rod is movably hinged with an end of crank and is connected, the other end of crank is installed in the rotating shaft that is arranged in the base, makes column, base, crank, bent connecting rod has constituted another movable quadric chain.

The output of described rotating shaft and motor or the output of hand gear are to drive and are connected, and between rotating shaft and the base torsion spring are installed, and torsion spring is nested with in rotating shaft, and the strength that erects of its reduction seat is user-friendly to.

Described chair body is together in series in a row, and rotating shaft adopts a plurality of axles to couple together by adapter sleeve, is convenient to assembling and produces, and reduces cost.

Compared with prior art, advantage of the present utility model is: the chair back can use as desk in overturning, and is simple and reasonable, easy to use, cost is moderate, makes easily and produces, and is particularly suitable for using on movable stand, fold up, volume is little, reduces institute and takes up space.

Description of drawings

Fig. 1 is the back structure view of the utility model multifunction seat;

Fig. 2 is the chair back rearview of the utility model multifunction seat;

Fig. 3 is the latch-up structure cutaway view of the utility model multifunction seat;

Fig. 4 is the latch-up structure cutaway view of the utility model multifunction seat

Fig. 5 is the cutaway view of take-up housing of the present utility model;

Fig. 6 is a slide block cutaway view of the present utility model;

Fig. 7 is a fixed head cutaway view of the present utility model;

Fig. 8 is the side view that turns over back portion;

Fig. 9 is for installing the schematic diagram of back portion;

Figure 10 is the front view of slide assembly;

Figure 11 is the upward view of slide assembly;

Figure 12 is the side view of slide assembly;

Figure 13 turns over back portion to stir one of schematic diagram of process;

Figure 14 be turn over back portion stir process schematic diagram two;

Figure 15 be turn over back portion stir process schematic diagram three;

Figure 16 be turn over back portion stir process schematic diagram four;

Figure 17 is seat lower part schematic diagram under roll-over condition;

Figure 18 erects schematic diagram under the state for the seat lower part;

Figure 19 is a seat lower part syndeton schematic diagram;

Figure 20 is the schematic diagram of column;

Figure 21 is the schematic diagram of arm-rest frame;

Figure 22 is the schematic diagram of bent connecting rod;

Figure 23 is the schematic diagram of crank;

Figure 24 is the schematic diagram of dorsal column;

Figure 25 is the schematic diagram of base.

Figure 26 is one of user mode figure of multifunction seat;

Figure 27 be multifunction seat user mode figure two.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1,26 signals, this kind multifunction seat, it generally includes the chair body 1 of seat, and its inventive point is that the chair back of chair body 1 is divided into the two parts up and down that can fold, and top is for turning over back portion 2, and the bottom is for installing back portion 3.

Turn over back portion 2 and include parts such as backboard 5, slide assembly 6, back position sponge assembly 13, the inside of backboard 5 installs and fixes back position sponge assembly 13, simultaneously, be screwed upper hopper chute assembly 6, slide assembly 6 adopts metal material to make, and the both sides side plate of slide assembly 6 has the chute 8 of band locating hole 9, locating hole 9 is arranged on the lower end (being as the criterion to turn under the back portion open mode) of chute 8, be hook-type, lockhole 12 just is arranged on the centre position of slide assembly 6, sees Fig. 1,8,10,11.

Back portion 3 is installed includes fixed head 11, dorsal column 10, carry on the back the next sponge assembly 25 parts such as grade, be connected and fixed upper mounted plate 11 with screw between the dorsal column 10 of both sides, fixed head 11 the insides are provided with the fixing the next sponge assembly 25 of the back of the body of going up, connecting rod 4 upper ends of both sides are to be hinged on the lower end (being as the criterion to turn under the back portion open mode) of turning over back portion slide assembly 6 rotationally, connecting rod 4 lower ends also are to be hinged on dorsal column 10 middle and upper parts that back portion is installed rotationally, and back portion dorsal column 10 both sides are installed have fixedly pin 7, fixedly pin 7 is to be plugged on to turn over back portion 2 both sides, in the chute 8 of band locating hole, fixedly pin 7 and chute 8 are activity and cooperate.

Turn over back portion 2 and install between the back portion 3 and also be provided with locking device, locking device structure is that the downside that turns over back portion 2 is provided with lockhole 12, be provided with and fixed sliding seat 15 and back portion 3 is installed, slide block 16 is installed in the sliding seat 15, slide block 16 has inclined-plane 18 in face, the perforate 19 that this inclined-plane 18 passes 15 li of sliding seats and the slide opening 23 of dead bolt 22 lower ends carry out the inclined-plane and conflict and cooperate, be supported with spring 17 between slide block 16 and the sliding seat 15, slide block 16 passes the inner end of sliding seat perforate 19 and carries out spacing with nut 20, simultaneously, install back portion 3 by locating rack 21 be provided with can telescopic movable dead bolt 22, dead bolt 22 carries out snap fit with lockhole 12.Sliding seat 15 is arranged on the fixed head 11, and fixed head 11 is fastened between the dorsal column 10 that back portion 3 is installed, carry on the back the next plate 14 and be fixedly connected on the outside of fixed head 11, the installing hole of sliding seat 15 is just opened in the centre position of the next plate 14 of the back of the body and with the through hole 24 of fixed head 11 and is communicated with, and slide block 16 is exposed just becomes button part.The thickness of carrying on the back the next plate 14 is basic consistent with the back plate thickness of turning over back portion 2, open and install under back portion 3 fit-states turning over back portion 2, the backboard 5 that turns over back portion 2 is attached on the dorsal column 10 that back portion is installed, and backboard 5 outer surfaces are concordant with the next plate 14 outer surfaces of the back of the body.

The chair body has switching mechanism, switching mechanism comprises frame base 28, column 27, arm-rest frame 26, dorsal column 10, crank 30, bent connecting rod 29 critical pieces such as grade, wherein frame base 28 is fixed on the grandstand 35, both sides dorsal column 10 lower ends that back portion 3 is installed are that rotating being movably hinged is connected with base 28, the middle and upper part of dorsal column 10 is that rotating being movably hinged is connected with the rear end of arm-rest frame 26, the forward down position of arm-rest frame 26 is that rotating being movably hinged is connected with the upper end of column 27 separately, the lower end of column 27 is that rotating being movably hinged is connected with base 28, make base 28, dorsal column 10, arm-rest frame 26, column 27 has constituted movable quadric chain, the position, middle and lower part of column 27 and an end of bent connecting rod 29 adopt rotating being articulated and connected, the other end of bent connecting rod 29 is movably hinged with an end of crank 30 and is connected, the other end of crank 30 is installed in the rotating shaft 31 that is arranged in the base, makes column 27, base 28, crank 30, bent connecting rod 29 has constituted another movable quadric chain.The output of rotating shaft 31 and motor or the output of hand gear are to drive and are connected.In order to improve the sensitivity of overturning, alleviate firmly, between rotating shaft 31 and the base 28 torsion spring 34 is installed, torsion spring 34 is nested with on the adapter sleeve of rotating shaft 31.Last chair body is together in series in a row, and rotating shaft 31 adopts a plurality of 32 to connect into a line shaft by adapter sleeve 33, sees Figure 17-19,21-25.

Its operation principle is such:

General seat of the present utility model is into two row's forms and is fixed on the ladder of movable stand 35, when seat will be transformed into the desk use, button is the end face of slide block 16 on the next plate 14 of the back of the body as long as press, make it movable downwards, inclined-plane 18 conflict compressings by slide block, dead bolt 22 21 li of fixed mounts is moved down, break away from the lockhole 12 that turns on back portion 2 slide assemblies, the back portion 2 of turning over that makes that seat upper portion divides goes out of lock with the installation back portion 3 of lower part and is connected, turning over back portion 2 under the effect of external force is the center of circle double mobile trend motion of doing that rotates with fixing pin 7, until setting level, and it is fixing to make fixedly pin 7 be limited in slide assembly upper hopper chute locating hole 9, seat just becomes a desk like this, sees Figure 13-16; When desk being transformed into the seat use, turn over back portion 2 as long as firmly lift, make the fixedly pin 7 that back portion 3 is installed break away from the locating hole 9 of chute, make and turn over back portion 3 and rotate and move around the fixedly pin 7 that back portion is installed, simultaneously, fixedly pin 7 cooperates at chute 8, makes to turn over back portion 2 and turn, and press close to install back portion 3, make the dead bolt 22 of mounting portion 3 be inserted into to lock in the lockhole 12 that turns over back portion 2 and get final product.

When wanting seat to turn over to erect to come, the rotating shaft 31 that motor or people's force mechanisms drive in the frame base 28 clockwise rotates, crank 30 also 31 is clockwise rotated around the shaft, by bent connecting rod 29 pullings, thereby drive column 27 upwards turns over and erects, in the following retrousse while of quadric chain, also driving quadric chain by column 27 constantly upwards turns over, and do accommodation, last column 27 erects fully, and at this moment, bent connecting rod 29 forwards the dead-centre position to, lock quadric chain, kept the stable of tipping-up chair; When wanting the overturning chair, the rotating shaft 31 that motor or people's force mechanisms drive in the framework rotates counterclockwise, crank 30 also 31 is rotated counterclockwise around the shaft, bent connecting rod 29 is rotated counterclockwise, removed the dead point, thereby promoting column 27 counterclockwise overturnings downwards comes, when quadric chain turns over downwards down, also drive quadric chain by column 27 constantly to turn over downwards, and do accommodation, last column 27 overturnings fall down to the ground tipping-up chair on the ground fully.Whole process torsion spring 34 plays the effect of balancing gravity, alleviates the load of motor or manpower, makes the tipping-up chair easy and flexible more that works together.

Claims

1, a kind of multifunction seat, it includes the chair body of seat, the chair back that it is characterized in that the chair body is divided into the two parts up and down that can fold, top is for turning over back portion and bottom for back portion is installed, the connecting rod lower end of both sides is to be hinged on the middle and upper part that back portion is installed rotationally, and the upper end of connecting rod also is to be hinged on the lower end of turning over back portion rotationally, and install the back portion both sides fixedly pin be to be plugged in the chute that turns over back portion both sides, band locating hole, fixedly pin is activity with chute and cooperates.

2, multifunction seat according to claim 1, it is characterized in that described turning between back portion and the installation back portion is provided with locking device, locking device structure is that the downside that turns over back portion is provided with lockhole, be provided with and fixed sliding seat and back portion is installed, slide block is installed in the sliding seat, have the inclined-plane in the slide block, the inclined-plane passes after the sliding seat perforate and to carry out the inclined-plane with the slide opening of dead bolt lower end and conflict and cooperate, be supported with spring between slide block and the sliding seat, the slide block inner end is carried out spacing with nut, simultaneously, install back portion by locating rack setting can telescopic movable dead bolt, dead bolt and lockhole are snap fit.

3, multifunction seat according to claim 2 is characterized in that described chute, lockhole are made on the slide assembly, and chute is distributed in both sides, and lockhole is arranged on the centre, and slide assembly is screwed and is connected on the backboard that turns over back portion.

4, multifunction seat according to claim 2, it is characterized in that described sliding seat is arranged on the fixed head, and the fixed head setting is fixed between the dorsal column that back portion is installed, carry on the back the next plate and be fixedly connected on the outside of fixed head, the installing hole of sliding seat is just opened in the centre position of the next plate of the back of the body and with the through hole of fixed head and is communicated with, and slide block is exposed just becomes button part.

5, multifunction seat according to claim 4, the thickness that it is characterized in that the next plate of the described back of the body is basic consistent with the back plate thickness of turning over back portion, open and install under the back portion fit-state turning over back portion, the backboard that turns over back portion is attached on the dorsal column that back portion is installed, and the backboard outer surface is concordant with the next plate outer surface of the back of the body.

6, according to described any one multifunction seat of claim 1 to 5, it is characterized in that described chair body has switching mechanism, switching mechanism is that frame base is fixed on the grandstand, the dorsal column lower end, both sides that back portion is installed is that rotating being movably hinged is connected with base, the middle and upper part of dorsal column is that rotating being movably hinged is connected with the rear end of arm-rest frame, the forward down position of arm-rest frame is that rotating being movably hinged is connected with the upper end of column separately, the lower end of column is that rotating being movably hinged is connected with base, make base, dorsal column, arm-rest frame, column has constituted movable quadric chain, the position, middle and lower part of column and an end of bent connecting rod adopt rotating being articulated and connected, the other end of bent connecting rod is movably hinged with an end of crank and is connected, the other end of crank is installed in the rotating shaft that is arranged in the base, makes column, base, crank, bent connecting rod has constituted another movable quadric chain.

7, multifunction seat according to claim 6, the output that it is characterized in that the output of described rotating shaft and motor or hand gear is to drive and is connected, and between rotating shaft and the base torsion spring is installed, and torsion spring is nested with in rotating shaft.

8, multifunction seat according to claim 7 is characterized in that described chair body is together in series in a row, and rotating shaft adopts a plurality of axles to couple together by adapter sleeve.