CN207707616U - Band can folding back cushion sofa - Google Patents

Abstract

Band can folding back cushion sofa, including preposition back cushion, can folding support, locking device, control device, organ shield, the mounting of sofa, seat cushion and backrest.Preposition back cushion rear is equipped with two front mouldings.Front moulding be followed by two groups of diamond shape framves composition can stretch and close up can folding support.Support is mounted in organ shield.Empty storage library is made in sofa backrest.Two vertical rear mouldings are installed on storage library inner back wall plate.Diamond shape frame forward and backward side's stick lower end is hinged at forward and backward box lower end.The forward and backward side upper end of diamond shape frame is hinged at respectively in the sliding block above forward and backward box item.Ratchet bar is provided on the sliding block of rear, side is equipped with pawl.When back cushion to be pulled out, a handle is first reversed, back cushion is drawn to can be used to required position.When wanting folding back cushion, handle is reversely twisted, back cushion is promoted storage library.The sofa, which avoids back cushion and huddles, leaves about phenomenon, and it is clean and tidy to maintain sofa, and back cushion distance is adjustable.

Description

Band can folding back cushion sofa

Technical field

The utility model belong to sofa field, especially band can folding back cushion sofa.

Background technology

Existing sofa cushion is primarily used to pad the small of the back of the personnel on being sitting in sofa, reduces people's sitting posture state waist The fatigue of the back of the body, makes physical relaxation, feels comfortable.Especially household sofa, seat cushion is often wider, takes back cushion away, for people It lies on Sofa mattress and sleeps.Sofa cushion is all bigger and thick, and footprint is sufficiently bulky.Per it is secondary lie down rest when, The back cushion taken away will often be deposited into several places, and a place is gone back heap and failed to lay down.Especially child beats on sofa in family It plays, back cushion often lose west and fall, haphazardly by east, and parents will often put tidy up many times daily, time consuming, also take essence Power, it is very troublesome.The people's in the morning of working go out morning, get much time, and sofa cushion is also often to huddle to leave about, very untidy.

Invention content

The purpose of the utility model is to overcome the deficiency of existing sofa, provide a kind of band can folding back cushion sofa, with Lower abbreviation sofa.

The utility model is realized in this way：Band can folding back cushion sofa, including preposition back cushion, can folding support, lock Determine device, control device, organ shield, the mounting of sofa, seat cushion and backrest.Can folding support be made of two groups of diamond shape framves.It is husky Storage library is made in the backrest of hair.Preposition back cushion all corresponds to behind and on the rear wall plate in storage library is equipped with two erecting with sliding slot Straight moulding；The moulding of preposition back cushion back is front moulding, and the moulding stored on the rear wall plate in library is rear moulding.In front It is selected in moulding and rear moulding in the sliding slot of a box item and slim slide block is installed, short cunning is installed in the sliding slot of another party's moulding Block.The following two pieces of stick ends of the forward and backward side of diamond shape frame be hinged to moulding it is following；Two pieces of the top stick of one side of diamond shape frame End is hinged at pivot pin on slim slide block, and end and the short sliding block of the two pieces of sticks in another party top are hinged.Diamond shape frame is mounted on wind In qin shield.Locking device includes pawl, block, ratchet bar.Control device includes bracing wire, spool, handle.Ratchet bar setting exists On slim slide block.Pawl is installed beside ratchet bar.It bracing wire one end and is connect with the block that pawl is connected, the other end passes through It is connected below spool and handle.A side therein is equipped with handle on the storage library at the preposition back cushion in front and rear. Pawl is rack-mount, and holder is connected with moulding where slim slide block.Fabric in front of organ shield and on preposition back cushion Connection, rear are connect with the wallboard of storage library back.Positive and negative two extreme positions that handle is pulled are equipped with locating piece.It is preposition Laminating apparatus is installed between the substrate holder back side and storage library lining of back cushion.When back cushion folding, twisting handle pushes preposition Back cushion, diamond shape frame and all foldings of organ shield enter storage library；When preposition back cushion pulls out, handle is inverted, pulling out back cushion can make With.

It can folding support abbreviation support.Following carried back cushion is including preposition back cushion, support and organ shield General name.

The utility model has the advantage of：1, sofa backrest is made empty storage library, back cushion folding back pole-bracket part and Organ shield is pushed into storage library, that is, concedes the space on Sofa mattress.2, due to can folding support design diamondwise frame, folding It is convenient, reliable.3, be provided with locking device and handle, when can folding support be drawn out after, can lock automatically, people leans against in back cushion When upper, back cushion will not be returned.4, it is provided with organ shield, it is neat and artistic, it is neat after folding.

Description of the drawings

Fig. 1 is back cushion installation situation figure on sofa.

Fig. 2 is support and connector construction profile.

Fig. 3 is the three-dimensional structure diagram of two groups of diamond shape frame composition supports.

Fig. 4 is laminating apparatus installation diagram.

In attached drawing：It is mounting 1, seat cushion 2, preposition back cushion 3, storage library 4, handle 5, organ shield 6, backrest 7, substrate holder 8, preceding Box item 9, wadding 10, fabric 11, pivot pin 12, short sliding block 13, stick 14, bracing wire 15, block 16, torsional spring 17, slim slide block 18, spine Rack 19, spool head 20, spool 21, holder 22, pawl 23, wallboard 24, rear moulding 25, stay 26, deflector roll 27, slideway mouth 28, jointing plate 29, velcro 30.

Specific implementation mode

It is back cushion installation situation figure on sofa in Fig. 1.Seat cushion 2 is on mounting 1.Backrest 7 is the back of the body of traditional sofa It leans on, shape is very thick and solid.In the present invention, a shell structure is made in tradition sofa backrest, back cushion is used as inside shell Storage library 4 after folding.Above storage library 4 and it is behind coverboard and sofa fabric.

Back cushion there are three being set in Fig. 1, on sofa.One, the right back cushion has been urged into storage library 4, only remains preposition back cushion A 3 outside parts seal the doorway in storage library 4, and at this moment back cushion has conceded the spatial position on seat cushion.In Fig. 1, the left side and centre Back cushion is the state being pulled out there are one each, and is locked.At this moment, people can be sitting on sofa, and back leans against on back cushion. Wadding in preposition back cushion is foam substance.What preposition back cushion 3 connected below is the shield of organ type, i.e. organ shield 6, wind Qin shield can folding.Handle 5 is installed, handle 5 is used for controlling locking device in backrest 7.

It is support and connector construction profile in Fig. 2.Organ shield is not drawn into Fig. 2.The left side is preposition leans in Fig. 2 Pad.Preposition back cushion is that the right is connected with support behind.Preposition back cushion top, front, that is, left, lower section are fabrics 11.In fabric 11 It is wadding 10,10 the right of wadding is substrate holder 8.Wadding 10 is foam elastic-like material.Support is made of two groups of diamond shape framves, Fig. 2 In it is seen that one group of side.Diamond shape frame structure itself is the prior art, is not described herein here.In front of diamond shape frame（That is the left side） With diamond shape frame rear（That is the right）Two mouldings with sliding slot are assembled with, the moulding in front is front moulding 9, the moulding at rear It is rear moulding 25.Two front mouldings 9 are mounted on 8 right side of substrate holder.Abutment wall after two rear mouldings are mounted in storage library On plate 24.Slim slide block 18 is installed in sliding slot above front moulding or rear moulding, front is mounted with, rear is just no longer pacified Dress.Here installation slim slide block 18 is described above box item after.Short sliding block 13 is installed in the sliding slot above the moulding of front. Slim slide block, short sliding block can above and below slide in sliding slot, cannot leave sliding slot.Before 14 lower end of stick in front of diamond shape frame is hinged at Below box item.14 upper end of stick is hinged on short sliding block 13 in front of diamond shape frame.After stick 14 lower end in diamond shape frame right is hinged at 25 lower section of box item.Diamond shape frame rear stick upper end pivot pin 12 is hinged at 18 top of slim slide block.It is provided with spine on slim slide block 18 Rack 19.19 left side of ratchet bar is equipped with pawl 23.Pawl 23 is mounted on holder 22.Holder 22 and 25 two sides of rear moulding It is connected.It is connected with block 16 above pawl.Torsional spring 17 is installed, torsional spring extension is pressed in the pawl back of the body on the installation pivot pin of pawl On, under the effect of torsion spring, pawl point is against on ratchet bar, and pawl, torsional spring, ratchet bar are prior art constructions, and torsional spring is by existing Technology is installed, and is not just described in detail here.In block direction roll on one side allowed partially to ratchet bar.In rear moulding side One spool head 20 is installed.Cable tube 21 is installed in spool head 20.Piece 15 one end of bracing wire is connect with block upper end, and one end passes through Spool simultaneously pulls out.Spool, bracing wire are the schematic diagrames drawn that fractures in Fig. 2.Spool, bracing wire fit structure and bicycle on brake Fare, spool are identical, but stretching resistance is much smaller.Therefore, spool wants much soft.Handle has above storage library or preposition leans on Pad two kinds of modes, before be mounted with, behind just no longer install.In Fig. 1, it is mounted on handle above the storage library of sofa backrest To be described.It is the case where handle is mounted on preposition back cushion side in Fig. 2.Handle handle is exposed at outside fabric, and handle turns Moving axis pierces into fabric, is mounted in preceding moulding.In Fig. 1, the control handle of each back cushion is mounted on above backrest 7.Under handle 5 Side passes through the shell in storage library 4.Rotary shaft end of the handle in shell is also connected with the block of section transverse direction, block end and line Bracing wire 15 in pipe connects.The positive and negative extreme position pulled of handle is both provided with limited block, is not drawn into limited block Fig. 2.

Operation principle：In Fig. 2, diamond shape frame is hinged together by the short identical stick intermediate interdigitated of two block lengths, then preceding The upper and lower except the outside end of two pieces of sticks is all hinged together successively per adjacent two pieces of stick ends afterwards.Before diamond shape frame, It is each that rear is hinged at the hinge point that two pieces of sticks in two ends and forward and backward side on forward and backward box item and in respective slide intersect Form a triangle.Therefore, as long as that triangular apex of forward and backward side wherein one is made to fix, then the item of all intersections Block is all fixed, i.e., all intersection sticks will not open again, will not close up again.Then, the utility model is using fixed diamond shape The lower extreme point for the stick that frame is one, and upper extreme point is arranged to movable, you can by changing the upper extreme point on the moulding of rear Upper and lower position, so that it may so that diamond shape frame stretches and closes up, and the diamond shape frame of pull-out is locked by pawl, ratchet bar. When back cushion is pulled out, first pulls and turn round the extreme position on that handle 5 to the left side corresponding in Fig. 1 and be blocked and stop.This When, handle makes the bracing wire 15 of 16 upper end of block in Fig. 2 loosen, and pawl 23 is made to turn to the pawl point of pawl under the effect of torsional spring 17 It is pressed on ratchet bar 19.Handle carries certain tightness, and non-artificial to pull handle, the torsional spring power on pawl is bracing wire cannot to be made to draw Handle rotation.For diamond shape frame in stretching, forward and backward side wants relatively close in two pieces of stick ends.Due to the forward and backward side's stick of diamond shape frame Lower end is fixed on forward and backward box item, and the end of the forward and backward box top of diamond shape frame is just forced to be moved down along sliding slot.At this moment, Slim slide block 18 on the right of Fig. 2 drives ratchet bar 19 to move down.Such case, exactly pawl can allow the side of ratchet bar downlink To then ratchet bar can move down.But at this moment it is the direction that pawl prevents ratchet bar uplink.It is current rest against pad move to it is required Position is stopped, and user can take sofa, lean against back cushion, such as the left side in Fig. 1 and intermediate back cushion.When back cushion to be collapsed, The first handle reversely pulled in torsion Fig. 1 is in place.At this moment, the following block rotation of handle, draws the block in Fig. 2 to rotate set angle, Pawl 23 is set to rotate, the pawl point of pawl leaves ratchet bar certain distance.The preposition back cushion of user's hand push.Slim slide block drives ratchet bar It moves up.At this moment, ratchet pawl point has left ratchet bar, and then ratchet bar can move up.User once can be diamond shape frame It is folded into storage library with the propulsion of organ shield.Such as one back cushion in the right in Fig. 1.

Pull-out back cushion turns round handle before, pushes away and turns round handle before receiving back cushion, is locked once because of ratchet bar, It pulls and turns round a handle, to unlock also to pull and turn round a handle.When original pull-out back cushion, no matter pawl is locked out or puts Loose state, ratchet bar moves down when pull-out, and ratchet bar can be transferred through.But previous propulsion folding back cushion has turned round hand Handle, pawl are pulled away from ratchet bar, have lost lock function, then this time making pawl if first do not turned round handle again Restore lock function, after this time pulling out back cushion, user takes sofa, when the back of the body pushes preposition back cushion, diamond shape frame It cannot lock, preposition back cushion will shrink back.Handle is turned round after back cushion can also be pulled out, is reversely turned round again after promoting back cushion Handle, but user is easy to forget.Therefore, in order to which user can facilitate memory operation, before simply allowing user to pull out back cushion Twisting handle is primary, and promoting back cushion, also turn-back handle is primary before.

The right is 7 shell structure figure of sofa backrest in Fig. 2.There are one head covers above for backrest 7, and the right is wallboard 24.Backrest It is fabric 11 outside head cover and wallboard.The backrest left side is opened wide, some following place for not splitting of backrest, is backrest both sides It is taken up space outside face.Backrest inner space is used as storage library.It is stored in backrest shell after support and organ shield folding.Wind Qin shield is the prior art, is not described herein here.

It is the three-dimensional structure diagram of two groups of diamond shape frame composition supports in Fig. 3.Organ shield is not drawn into Fig. 3.Support both sides are each There is one group of diamond shape frame.Corresponding stick upper and lower side hinge position is all connected to one with a stay 26 among two groups of diamond shape framves It rises.The short sliding block installed in fig. 2 on the moulding of front can be changed to the structure in Fig. 3, function as short sliding block, but manufacture It is much simpler.The structure is to make slideway mouth 28 in the top break-through of front moulding two sides, and a section deflector roll is worn in slideway mouth 28 27.Stick upper end is connected among deflector roll 27 in front of diamond shape frame.The slideway mouth that front moulding two sides are stretched out at deflector roll both ends is suitable Work as length, is subject to and does not fall off.When diamond shape frame is stretched with collapsing, deflector roll slides up and down freely in slideway mouth.Rear moulding, The structures such as pawl, ratchet bar are identical with Fig. 2.In Fig. 3, ratchet bar, pawl, bracing wire, spool are fitted with after two on moulding Etc. structures, the bracing wire on both sides, spool all move the following block front end of handle to, two bracing wires are fixed in the block.

It is laminating apparatus installation diagram in Fig. 4.The holder of jointing plate 29 is mounted on storage library lining, jointing plate Outside is equipped with one piece of velcro 30.Relative to fitting Board position, there are also installed one block of nylon at the substrate holder back side of preposition back cushion Hasp.After back cushion folding, when preposition back cushion draws close storage library doorframe, two pieces of velcros are just bonded, and preposition back cushion is made to exist It will not be loosened naturally in the case of non-artificial pulling.Jointing plate can also be mounted on the substrate holder of preposition back cushion behind.

In addition to technical characteristic described in specification, remaining technical characteristic is technology known to those skilled in the art.

Claims (5)

1. band can folding back cushion sofa, it is characterised in that：

（1）, band can folding back cushion sofa, including preposition back cushion, can folding support, locking device, control device, organ shield Cover, the mounting of sofa, seat cushion and backrest；

（2）, can folding support be made of two groups of diamond shape framves；

（3）, sofa backrest be made storage library；

（4）, all correspondences are equipped with two vertical mouldings with sliding slot behind and on the rear wall plate in storage library for preposition back cushion；It is preposition The moulding of back cushion back is front moulding, and the moulding stored on the rear wall plate in library is rear moulding；

（5）, in front moulding and rear moulding select a box item sliding slot in slim slide block, the cunning of another party's moulding are installed Short sliding block is installed in slot；

（6）, the following two pieces of stick ends of the forward and backward side of diamond shape frame be hinged to moulding it is following；The top two of one side of diamond shape frame Block stick end is hinged at pivot pin on slim slide block, and end and the short sliding block of the two pieces of sticks in another party top are hinged；

（7）, diamond shape frame be mounted on organ shield in；

（8）, locking device include pawl, block, ratchet bar；

（9）, control device include bracing wire, spool, handle；

（10）, ratchet bar be arranged on slim slide block；

（11）, pawl is installed beside ratchet bar；

（12）, bracing wire one end and connect with the block that pawl is connected, the other end passes through spool to be connected with handle lower section；

（13）, a side therein is equipped with handle on the storage library at the preposition back cushion in front and rear.

2. band according to claim 1 can folding back cushion sofa, it is characterised in that：Pawl is rack-mount, holder It is connected with moulding where slim slide block.

3. band according to claim 1 can folding back cushion sofa, it is characterised in that：Organ shield front and preposition back cushion On fabric connection, rear with store library back wallboard connect.

4. band according to claim 1 can folding back cushion sofa, it is characterised in that：Positive and negative two pole that handle is pulled Extreme position is equipped with locating piece.

5. band according to claim 1 can folding back cushion sofa, it is characterised in that：The substrate holder back side of preposition back cushion with Laminating apparatus is installed between storage library lining.