CN2426707Y

CN2426707Y - Lifting folding device for chair

Info

Publication number: CN2426707Y
Application number: CN 00242976
Authority: CN
Inventors: 庄美金
Original assignee: YIJUN INDUSTRIAL Co Ltd
Current assignee: YIJUN INDUSTRIAL Co Ltd
Priority date: 2000-07-10
Filing date: 2000-07-10
Publication date: 2001-04-18
Anticipated expiration: 2010-07-10

Abstract

The utility model relates to a lifting side table folding device for a chair. The tail ends of arms of the chair are assembled with an inner and an outer connecting element unit bodies which can be movably turned at 180 DEG. One end of an outer connecting element is assembled with a rod supporting element which is penetrated into a side table which is arranged casually. The turning points of both sides of a phi-shaped back foot rack of the chair are respectively sheathed with a connecting part which can be used for matching one end of a predetermined reinforcing part to be steadily bridged on the connecting part, and matching the other end of the predetermined reinforcing part to be inserted at the bottom side point of the inner connecting element. Therefore, the side table of the chair can be steadily extended and bridged in normal use. When not used, the side table can be folded below the arms of the chair, and the space which is occupied when the chair is not used can be saved.

Description

The lifting type side table folding mechanism of seat

The utility model relates to a kind of lifting type side table folding mechanism of seat, mainly be steadily to stretch can making normal levelness at ordinary times according to the side table of the arbitrary side handrail of seat effect end winding, when not using, then movable side table can be done a folding completely below armrest, make seat side table not use (or use) can do easy folding (or stretching, extension), and can save when not using in seat side table and to take up room.

The side that existing common people institute generally uses is extended with the seat of presetting appearance and wide cut area side table, forming at the framework of integral body roughly is to set up backrest section at the seat rear side of both establishing height, and extend the lateral support plate along a side of backrest section, the latter end by the lateral support plate of continuing forms one and had both established the side table of wide cut, this kind seat really can provide common people comfortable conduct seat and writing function at ordinary times, yet the side table of therefore planting seat when not using is directly to set firmly to extend in backrest one side, can't fold, so that most open seat when not using because of folding suitable taking up room, the weak point when this also is the use of this kind seat.

Main purpose of the present utility model provides a kind of lifting type side table folding mechanism of seat, do when it can make seat use to stretch stably set up, can be below armrest when not using with the complete folding of side table.

Another purpose of the present utility model provides a kind of lifting type side table folding mechanism of seat, its can make most seats of opening simple and direct, buckle under the binding stably, reach close seat and fasten function.

For achieving the above object, the utility model adopts following technical scheme: the lifting type side table folding mechanism of this seat, and it is that a side handrail end at seat is assembled with the side table; Complying with handrail in addition the side table assembled of end be to do movable stretching, extension or folding is at the side table parts composition of seat one side fully according to whether using, these side table parts include:

One group of inside and outside connecting piece, an end and the armrest latter end of connecting piece are positioned to one in being somebody's turn to do, and interior connecting piece and outer connecting piece bestowed be assembled into the activity folding group bodies that can make 180 degree mutually, continue and can supply the side table strut piece of sheathed usefulness by an end winding of outer connecting piece;

One side table, in default wide cut, table one end of size is provided with the hole that takes up of the suitable degree of depth, cooperating the extended strut piece of outer connecting piece can be close degree runs through and is one, tool takes up the bar groove that hole paragraph tube wall is opened about 90 degree in an end of side table in addition, can penetrate the strut piece bottom of also locating inside between its groove of side table by a bolting element, make the side table be level can be subjected to orientation boundary from bolting element to the following boundary end that sets up its groove, and the side table can up be pulled to move when not using and is vertically to setting up, the strut piece one end bolting element that sets up is therebetween being moved along its groove zone of side table, stop until the last boundary end of bar groove;

One reinforcement parts, it is respectively sheathed coupling component in turning point, the  of each seat shape rear leg both sides, the coupling component of both sides H shape bar flank by the perpendicular tool in upper end, cooperate the v notch v of falling ∪ of its lower end of reinforcement parts of a default form and length steadily to bridge therebetween, the depression place can be reserved in the corresponding bottom side that is plugged on interior connecting piece in its upper end of these reinforcement parts;

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model lifting type side desk member decomposing schematic representation

Fig. 2 is the member detail drawing of inside and outside connecting piece of lifting type side table and side table

Fig. 3 is the assembling detailed top plan view of inside and outside connecting piece of lifting type side table and side table

Fig. 4 is the assembling detailed side view of inside and outside connecting piece of lifting type side table and side table

Fig. 5 is up pulling the side table detail drawing that moves for lifting type side table

Fig. 6 is up pulling the side table front-view schematic diagram of moving for lifting type side table

Fig. 7 is a lifting type side table with the schematic diagram of side table folding backward below armrest

Fig. 8 is the member detail drawing of seat rear leg at sheathed coupling component

The outside drawing that Fig. 9 finishes for the seat overall package

Figure 10 is most schematic diagrames of opening the mutual connecting state of seat

The utility model seat lifting type side table folding mechanism as Fig. 1, Fig. 2, shown in Figure 8, is mainly linking inside and outside connecting

piece

2,3 groups of bodies, side table 4, coupling component 5, reinforcement parts 6 in regular turn by a side handrail 1 acting section of seat and is forming.

One group of inside and outside connecting

piece

2,3, an end and armrest 1 latter end by interior connecting piece 2 are positioned to one by bolting element (pressing down the rivet clasp element) 21, one side linking aspect of connecting piece in this 2 is occupied the protuberance 22 of tool through hole 23 in one section of the center of gravity place projection, and have a upper and lower

arc knee groove

24,25 in that the suitable spacing of periphery of interior connecting piece 2 central spud 22 is recessed; Externally a side linking aspect of connecting piece 3 is concaved with hole 31 in the place, centre between two parties in addition, be nested with mutually with the middle protuberance 22 of interior connecting piece 2, in addition outside the peripheral proper orientation of connecting piece 3 central aperture 31 prominent have deflection to two

projection sections

32,33, come corresponding cover be incorporated in 24,25 of connecting piece 2 its upper and lower arc knee grooves.

When this inside and outside connecting

piece

2,3 is mutual assembling (as shown in Figure 3, Figure 4), then can be nested with elastic washer 34 in the central aperture 31 of connecting piece 3 outside earlier, continuing makes inside and outside connecting

piece

2,3 be the corresponding integrator of cover mutually, relends to help bolting element 26 to be run through to come that to bestow suitable packing degree and lock with outer connecting piece 3 be one by through hole 23 places of interconnecting piece 2 one ends.

One side table 4, be in default wide cut, what table one end of size was provided with the suitable degree of depth takes up hole 41, cooperating outer connecting piece 3 to link extended strut piece 35 can be close degree and run through and be one (as shown in Figure 3), tool takes up the bar groove 42 that hole 41 paragraph tube walls are opened about 90 degree in an end of side table 4 in addition, inner strut piece 35 bottoms (as shown in Figure 5) are gone in 42 of the bar grooves and the location that can penetrate side table 4 by a bolting element 43, make side table 4 be level can be subjected to orientation boundary from bolting element 43 to the following boundary end 421 that sets up bar groove 42, and side table 4 can up be pulled to move when not using and is vertically to setting up (as the imaginary line orientation of Fig. 5), the strut piece 35 1 end bolting elements 43 that set up are therebetween moved in bar groove 42 zones along side table 4, stop until the last boundary end 422 of bar groove 42.

One reinforcement parts 6 (as shown in Figure 8), it is to locate sheathed coupling component 5 respectively in turning point, the  of each seat shape rear leg 7 both sides, coupling component 5 H shape bar flank 51 by the perpendicular tool in upper end, cooperate the v notch v of falling ∪ 61 of reinforcement parts 6 its lower ends of a default form and length steadily to bridge therebetween (as shown in Figure 9), the depression place was reserved in the bottom side of connecting piece 2 in these reinforcement parts 6 its upper ends can corresponding be plugged on.

According to a set side handrail 1 effect paragraph that inside and outside connecting

piece

2,3 and side table 4 is assembled in seat of the utility model, set up (state as shown in Figure 9) side table 4 can being made normal steadily levelness at ordinary times; In addition when not using (as Fig. 6, shown in Figure 7), then earlier side table 4 is up pulled to move and be vertically to state (as shown in Figure 6), continue and vertical side table 4 is begun to pull backwards to move (as shown in Figure 7) with hand, side table 4 strut piece 35 that runs through and the outer connecting piece 3 that is close to are do rotation backward synchronously in the lump, until the below of side table 4 complete foldings therebetween to armrest 1; According to this, can realize that seat side table 4 can do easy folding (or stretching, extension) when not using (or use), and save seat side table 4 taking up room when not using.

In addition seat 8 its seats 8 that also majority can be opened in use at ordinary times that the utility model used are bestowed mutual hasp and become connecting state (as shown in figure 10), this links setting is the coupling component 5 sheathed respectively in turning point, the  of each seat 8 shape rear leg 7 both sides, stretch out the pawl part 52 in the big footpath of latter end tool outwardly by the coupling component 5 of one side, coupling component 5 in other side then forms opening 54 clip portion 53 down outwardly, and the end layer wall of this clip portion 53 is provided with vertical notch 55, make most seats 8 of opening when doing to link mutually, one can be opened that the clip portion 53 of seat 8 one sides is corresponding to be close to pawl part 52 that another seat 8 tool of dashing forward goes out and to make the close one (as shown in figure 10) that is buckled into, the seat of majority being opened according to above-mentioned hasp mode 8 under simple and direct operation, can with whenever in twos 8 of seats be that tool is more certain to buckle binding stably.

The utility model has the advantage of: improved the drawback that has in the actual use of existing seat, past during use Pull outward move and be down level to placement, can obtain to set up stably, the function of tool folding can save greatly Province takes up room.

Claims

1, a kind of lifting type side table folding mechanism of seat, it is that a side handrail end at seat is assembled with the side table; It is characterized in that: complying with handrail in addition the side table assembled of end be to do movable stretching, extension or folding is at the side table parts composition of seat one side fully according to whether using, these side table parts include:

One reinforcement parts, it is respectively sheathed coupling component in turning point, the  of each seat shape rear leg both sides, the coupling component of both sides H shape bar flank by the perpendicular tool in upper end, cooperate the v notch v of falling ∪ of its lower end of reinforcement parts of a default form and length steadily to bridge therebetween, the depression place can be reserved in the corresponding bottom side that is plugged on interior connecting piece in its upper end of these reinforcement parts.

2, the lifting type side table folding mechanism of seat according to claim 1 is characterized in that:

A side linking aspect of connecting piece occupies the protuberance of tool through hole in one section of the center of gravity place projection in described, has a upper and lower arc knee groove in that the suitable spacing of the periphery of interior its central spud of connecting piece is recessed;

One side linking aspect of described outer connecting piece place, centre between two parties is concaved with the hole, be nested with mutually with the middle protuberance of interior connecting piece, in addition outside the peripheral proper orientation of its central aperture of connecting piece prominent have deflection to two projection sections, in corresponding cover is incorporated between its upper and lower arc knee groove of connecting piece;

Be nested with elastic washer in the central aperture of connecting piece outside, with bolting element by the through hole of interconnecting piece one end run through with outside the connecting piece locking shape of bestowing appropriate packing degree make inside and outside connecting piece be corresponding mutual cover integrator.

3, the lifting type side table folding mechanism of seat according to claim 1, it is characterized in that: wherein at the sheathed coupling component of turning point, the  of each seat shape rear leg both sides difference, the coupling component of one side stretches out the pawl part in the big footpath of latter end tool outwardly, coupling component in other side then forms downward opening clip portion outwardly, and the end layer wall of this clip portion is provided with vertical notch.