CN2822368Y

CN2822368Y - Chair back device

Info

Publication number: CN2822368Y
Application number: CN 200520106585
Authority: CN
Inventors: 陈信华
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-29
Filing date: 2005-08-29
Publication date: 2006-10-04
Anticipated expiration: 2015-08-29

Abstract

The utility model relates to a chair back device. The utility model is at least provided with a frame, a frame cover, a net body and a support member, wherein a plurality of holes fixed by screws are arranged at the periphery of the frame; the net body is coated on the frame, is covered by the frame cover and is fixed on the frame through components fixed by screws. The utility model is characterized in that a plate body is arranged below the frame; the plate body is provided with a plurality of hollow holes to form reinforcing ribs; a member used for pushing a waist and the waist to lean on is arranged on the plate body. The utility model can ensure that the support member can not be deformed and ruptured; the support strength can be improved.

Description

Chair back device

[technical field]

The utility model relates to a kind of chair back device, refers to a kind of with the chair back device of dictyosome as the chair back especially.

[background technology]

Chair is the furniture of people's indispensability, and known chair has multiple different types, for promoting the comfortableness of chair air ventilation, so the chair that has is as the chair back with the breathable dictyosome.Known with the chair 1 of dictyosome as the chair back, as shown in Figure 1, 2, constituted by chair frame 11, seat support 12, the chair back 13.

Chair frame 11 is the support bodys 111 with radially, and terminally is provided with the convenient roller 112 that moves, and frame stands on ground and in order to support the seat support 12 and the chair back 13.

Seat support 12 is to be equipped with soft flexible member in the top of a base plate, and with one deck modification cloth it is coated, and makes us can reach comfortable purpose when taking.

The chair back 13, mainly be to comprise a framework 131, one dictyosome 132 and a waist lean structure 133, this framework 131 is to be the space that the chair back skeleton institute frame of suitable frame shape moulding crosses, be provided with the stay pipe 1311 that is the L type in framework 131 2 sides, stay pipe 1311 belows have a bending place, be fixedly arranged on the chair frame 11 for stay pipe 1311, this dictyosome 132 has suitable elasticity, and be fixedly arranged on the framework 131, respectively being provided with one in framework 131 2 sides adjusts elongated slot 1312 longitudinally in addition, coming to lean mechanism 133 for waist is embedded, it mainly is that front side at a body is in conjunction with the flexible back cushion 1331 of a tool that this waist leans mechanism 133, and respectively be connected with embedding in two sides of body and collude 1332, collude the adjustment elongated slot 1312 that 1332 hooks are lived framework 131 by this embedding, make waist lean mechanism 133 and can be fixed on the framework 131, and in the adjustment elongated slot 1312 of framework 131, following slippage is to adjust the position that this waist leans mechanism 133.

When occupant is on this chair 1, can adjust the position that this waist leans mechanism 133 earlier, back and the waist location with after this occupant that make are corresponding, can be more comfortable when reclining the chair back 13 to reach the occupant back.Yet, because the known chair back 13 is stay pipe 1311 and the 11 support bindings of chair frame by two side symmetries, this chair back 13 is easy to generate in group immediately and is difficult for symmetry, the shortcoming of alignment, cause 1 group of degree of difficulty immediately of chair to increase, there is no any fixed mechanism is set and this waist leans mechanism 133, after adjusting, this waist leans mechanism 133 and can't maintain required adjustment height really, and stay pipe 1311 has the two turning point a of place, this turning point a forms stress concentration point easily, when occupant's back forced in the chair back 13, the turning point a of stay pipe 1311 can concentrated the causing of easy stress fracture.

Be with, how to provide a kind of and can avoid above-mentioned disappearance and with the chair of dictyosome as the chair back, real be a big problem of furniture dealer utmost point desire solution.

Utility model people is the professional who is engaged in face furniture related industry exploitation, because that the combined method of known chair is not attained is perfect, with positive the studying of working experience all the year round, in that constantly test and improvement back are being obtained the utility model eventually.

[utility model content]

Main purpose of the present utility model in that a kind of chair back device is provided, can be coated supporting member, guaranteeing unlikely distortion of supporting member and fracture, and can increase the intensity of chair back device.

An of the present utility model purpose providing a kind of chair back device, leans member and micro-adjusting mechanism thereof by a waist is set, and waist leaned lock after member is adjusted to the appropriate location, can make when taking more comfortable.

A kind of chair back device of the present utility model, it has a framework, frame lid, a dictyosome and a supporting member at least, be provided with several screw fixed holes around this framework, this dictyosome is coated on the framework, and cover this dictyosome and be fixed on the framework with bolting element with this frame, it is characterized in that: this framework below has plate body, and this plate body is provided with several hollow holes to form reinforced ribs, and this plate body is provided with a waist and leans member.

Chair back device of the present utility model can be coated supporting member, guaranteeing unlikely distortion of supporting member and fracture, and can increase the intensity of chair back device.

Chair back device of the present utility model leans member and micro-adjusting mechanism thereof by a waist is set, and waist is leaned lock after member is adjusted to the appropriate location, can make when taking more comfortable.

[description of drawings]

Fig. 1 is known chair schematic rear view.

Fig. 2 is the schematic perspective view of the known chair chair back.

Fig. 3 A is the three-dimensional exploded view of the chair back of the present invention, and Fig. 3 B, Fig. 3 C are the partial enlarged drawings of Fig. 3 A.

Fig. 4 is the stereogram of the chair back of the present invention and chair frame.

Fig. 5 is the combination stereogram of the chair back of the present invention.

Fig. 6 is the side view cutaway drawing of the chair back of the present invention.

Fig. 7 is the vertical view cutaway drawing of the chair back of the present invention.

[specific embodiment]

Be the effect that can be easier to understand structure of the present utility model and can reach, cooperation now illustrates as follows:

At first, see also shown in Fig. 3 A, 3B, the 3C, chair back device of the present utility model has a framework 2, frame lid 3, one dictyosome 4, a waist leans a member 5 and a supporting member 6 at least.

Framework 2, has the curve that meets the human body back radian, around framework 2, be provided with several screw fixed holes 21, framework 2 belows have a plate body 22, this plate body 22 is to be convexly equipped with towards the rear of framework 2, and form an accommodation space P with the front-end edge of framework 2, plate body 22 is provided with several microscler hollow holes 221 and reinforced ribs 222, be provided with two dividing plates 223 in plate body 22 central authorities, these dividing plate 223 central authorities are provided with the micro-adjusting mechanism 224 of indentation, be provided with a junction surface 225 in micro-adjusting mechanism 224 belows, these 225 belows, junction surface are provided with a slotted eye 2251, are provided with symmetrical fixing hole 2252 on junction surface 225 in addition.

Frame lid 3 is the frameworks for a hollow, and the shape of this frame lid 3 is to be corresponding with framework 2, and the back side of frame lid 3 convexes with several double-screw bolts 31 corresponding to framework 2 screw fixed holes 21 places.

Dictyosome 4 is made with the flexible soft material of tool, and the curve of this dictyosome 4 is then defined by framework 2.

Waist leans member 5, have body 51 and back cushion 52, the rear of this body 51 has a protuberance 511, the width of this protuberance 511 is can insert just in the dividing plate 223 of framework 2, be provided with and framework 2 micro-adjusting mechanisms 224 corresponding and same saw-toothed micro-adjusting mechanisms 512 in protuberance 511 central authorities, respectively be provided with a screw 513 in micro-adjusting mechanism 512 2 sides, two sides in body 51 the place aheads then are provided with back cushion 52, this back cushion 52 is to be equipped with soft flexible member, and modify cloth with one deck it is coated, make occupant's waist when taking, can reach comfortable purpose.

Supporting member 6, be to be a L shaped plate, the vertical component effect 61 of this supporting member 6 is provided with and junction surface 225 fixing holes, 2252 corresponding holes 611, the horizontal part 62 of supporting member 6 then is provided with a screw fixed hole 621, the horizontal part 62 of this supporting member 6 is to be fixedly arranged on the connecting portion 71 of chair frame 7 tops, as shown in Figure 4 with lock member S.

The chair back of the present utility model is when implementing, be that the protuberance 511 that earlier waist is leaned member 5 is placed in the accommodation space P of framework 2 plate bodys 22 corresponding to dividing plate 223, the hollow hole 221 that passes framework 2 plate bodys 22 with bolting element S1 is screwed together in the screw 513 that waist leans member 5 again, waist is leaned member 5 to be fixed on the framework 2, then dictyosome 4 is placed on the framework 2 edge to be coated on the framework 2 with dictyosome 4, cover frame lid 3 again, be locked on the double-screw bolt 31 of frame lid 3 pass the screw fixed hole 21 of framework 2 with bolting element S2 after, the back cushion 52 that this moment, waist leaned member 5 can slightly protrude from the front-end edge of framework 2, at last the vertical component effect 61 of supporting member 6 slotted eye 2251 by framework 2 is inserted in the junction surface 225, and the horizontal part 62 of supporting member 6 is fixedly arranged on the connecting portion 71 of chair frame 7 tops with lock member S, the chair back after the combination is as shown in Figure 5.

Effect of the present utility model is, form a plate body 22 by below in framework 2, and this plate body 22 is to be convexly equipped with towards the rear of framework 2, and several microscler hollow holes 221 and reinforced ribs 222 be set on plate body 22, increase the intensity of framework 2, in addition the central authorities in plate body 22 establish a junction surface 225, and the vertical component effect 61 of L shaped supporting member 6 is coated in the junction surface 225, not only can increase the intensity of supporting member 6, more reach the effect of convenient combination; And the accommodation space P that framework 2 is defined by plate body 22, it is ccontaining to lean member 5 for waist, and micro-adjusting mechanism 224 set on framework 2 plate bodys 22 is for being meshed with the micro-adjusting mechanism 512 that waist leans member 5, as shown in Figure 6, when palpus adjustment waist leans the height of member 5, only need bolting element S1 is unclamped, and waist is leaned after member 5 is adjusted to the appropriate location by the rear of framework 2, just bolting element S1 locking gets final product again, if when needing to adjust slightly highly, equally bolting element S1 is unclamped a little, can utilize micro-adjusting mechanism 224,512 sawtooth is finely tuned, by this micro-adjusting mechanism 224,512 sawtooth is chimeric, time error is excessive in adjusting highly and need not worry to lean member 5 by waist, and by the accommodation space P that plate body 22 forms can make waist lean member 5 about the back cushion 52 of two sides slightly protrude from the front-end edge of framework 2, and chair back central authorities are slightly recessed kenel, as shown in Figure 7, and can make the occupant when taking, the vertebra at back can not oppressed, and then obtains good, comfortable support.

In sum, chair back device of the present utility model, not only simple in structure and can reach the effect of institute's demand really.

Claims

1. chair back device, it has a framework, frame lid, a dictyosome and a supporting member at least, be provided with several screw fixed holes around this framework, this dictyosome is coated on the framework, and cover this dictyosome and be fixed on the framework with bolting element with this frame, it is characterized in that: this framework below has plate body, and this plate body is provided with several hollow holes to form reinforced ribs, and this plate body is provided with a waist and leans member.

2. chair back device as claimed in claim 1 is characterized in that: this hollow hole is to be long shape hole.

3. chair back device as claimed in claim 1 is characterized in that: this plate body is provided with a junction surface, and this below, junction surface is provided with a slotted eye, passes this slotted eye locking for this supporting member.

4. chair back device as claimed in claim 1 is characterized in that: central authorities' two sides of this plate body are provided with dividing plate, are to be provided with micro-adjusting mechanism between this two dividing plate.

5. chair back device as claimed in claim 1 is characterized in that: the plate body of this framework is provided with a waist and leans member.

6. chair back device as claimed in claim 5 is characterized in that: the rear that this waist leans member has a protuberance, and this protuberance is provided with a micro-adjusting mechanism.

7. chair back device as claimed in claim 5 is characterized in that: body the place ahead two sides that this waist leans member are provided with back cushion.

8. chair back device as claimed in claim 1 is characterized in that: this supporting member is a L shaped plate.