CN2374081Y - Folding dual-purpose bed - Google Patents

Abstract

The utility model provides a folding dual-purpose bed, which comprises a backrest, a bed frame and a bed mattress. The utility model is characterized in that the bed frame is composed of a front bed frame, a position folding bed frame and a rear bed frame which are hinged by hinges in sequence. Both sides of the lower ends of the front bed frame and the rear bed frame are respectively provided with a front foot frame and a rear foot frame. The backrest is hinged with the rear end of the rear bed frame through ratchet devices on both sides of the front end of the backrest, wherein, each ratchet device is composed of a ratchet, a hinge shaft, a bearing seat, a ratchet pawl and a ratchet restoring cam. The ratchet and the bearing seat are respectively hinged with the backrest and the rear bed frame by the hinge shafts. The interior of each ratchet device is also provided with the ratchet restoring cam. The utility model has the advantages of simple structure, convenient and reliable use, etc.

Description

Collapsible folding seat bed

The utility model belongs to furniture, particularly a kind of collapsible folding seat bed.

At present, normal couch that uses of people and bed, its structure is all fixed, function singleness, the effect of performance oneself separately, this is for the comparatively narrow family of some residential houses, place bed and just can't settle couch, placed couch and can not lay bed again, produced contradiction naturally, wish to have very much and a kind ofly after folding, can make couch usefulness, and can make the dual purpose furniture of a usefulness when launching.Draw cabinet type folding seat bed though in prior art, there is the people to design, owing to use inconvenience and structure firmly and not to be applied inadequately.

The purpose of this utility model is to provide a kind of novel structure, simple and reliable, easy to use, and the collapsible folding seat bed that couch can be united two into one newly designs.

Above-mentioned task realizes by this way: this folding seat bed includes backrest, bedstead and mattress, it is characterized in that bedstead is by front bedstead, folding position bedstead and back bedstead form by hinge is hinged successively, foot rest and rear leg before the both sides, lower end of front bedstead and back bedstead are respectively equipped with, backrest is hinged by the ratchet device and the after-frame rear end of front end both sides, this ratchet device is by ratchet, jointed shaft, bearing block, the pawl-and-gearing resetting cam is formed, ratchet is connected with back bedstead with backrest respectively with bearing block, hinged by jointed shaft, ratchet is arranged on the bearing block, the ratchet resetting cam also is socketed on the jointed shaft, the front upper part of this ratchet resetting cam and preceding bottom are respectively equipped with one and go up plush copper and following plush copper, have a pit that can allow the ratchet front end stretch at following plush copper front end, between pit and last plush copper, plush copper outside the arc is arranged, also be provided with the seaming chuck and the push-down head that can contact with following plush copper with last plush copper at the upper back and the rear lower of ratchet.

This folding seat bed is to use like this, do the couch time spent, the bed side arm is overturn backward, utilizing folding position bedstead to do the folding position folds on back bedstead, again backrest is dug, by ratchet device backrest is fixed on a certain suitable inclination angle and can constitutes a couch, its preceding foot rest can be made the handrail of couch.If need to do the bed time spent, front bedstead and folding position bedstead are turned back horizontal level, preceding foot rest lands.Then, backrest is continued upset forward, when the seaming chuck on the ratchet touches the last plush copper of ratchet resetting cam, also drive the ratchet resetting cam and rotate, plush copper is depressed ratchet outside its arc, after making it to break away from the ratchet of ratchet, outer plush copper of plush copper and arc is close to ratchet on it, and ratchet to the direction of the reaction force of ratchet resetting cam over against jointed shaft, produce the dead point, the ratchet resetting cam is stuck, and no longer rotates.At this moment, because ratchet is not subjected to the constraint of ratchet, backrest just can be freely toward the horizontal direction revolution, after the push-down head of ratchet touches the following plush copper of ratchet resetting cam, just promote the revolution of ratchet resetting cam, its down plush copper just promote the ratchet return, again with the ratchet engagement of ratchet, backrest just be returned to water level put constitute one can be for the bed of sleep.

From structure of the present utility model and operation principle as seen, the utility model both can have been made couch and use, and can make bed again and use, and have advantages such as simple in structure, easy to use and reliable.

Below in conjunction with accompanying drawing structure of the present utility model is further described.

Fig. 1 is the schematic side view that a kind of concrete structure of the utility model is done the bed time spent.

Fig. 2 is for removing the vertical view of mattress 1 among Fig. 1.

Fig. 3 makes the schematic side view of couch time spent for the utility model shown in Figure 1.

Fig. 4 is the amplification partial sectional view of ratchet device 6 among Fig. 1.

Fig. 5 is the vertical view of Fig. 4.

State diagram when Fig. 6 forwards maximum angle to for ratchet device 6 ratchets 10 shown in Figure 4.

Fig. 7 is the amplification oblique drawing of articulated elements 8 among Fig. 1.

Shown in Fig. 1～3, after all using shaped steel (first steel or angle steel) bending, front bedstead 2, folding position bedstead 3 and back bedstead 4 and backrest 5 be welded into the frame shape, more some longitudinal and transverse steel of welding and making in its frame.Hinge 8 preferably is installed on the both sides of each bedstead hinged place, and totally four make it stressed evenly, also are convenient to assembling.Preceding foot rest 9 and rear leg are loaded on the lower end, both sides of front bedstead 2 and back bedstead 4 respectively.Backrest 5 is hinged with back bedstead 4 by the ratchet device 6 of its front end both sides.Mattress 1 directly is layered on front bedstead 2, folding position bedstead 3, back bedstead 4 and backrest 5 tops.Described ratchet device 6 is by ratchet 10, and jointed shaft 11, bearing block 12, ratchet 13 and ratchet resetting cam 14 constitute.The ratchet 10 of ratchet device 6 preferably adopts the dicycly structure, its preceding semicircle has ratchet, the rear end links together, bearing block 12 is a fork structure, by jointed shaft 11 ratchet 10 is loaded in its prong, ratchet resetting cam 14 is socketed on the jointed shaft 11 between ratchet 10 two-wheels, and the ratchet that cooperates with ratchet 10 is installed in the prong of bearing block 11.Adopt dicycly ratchet 10 can increase the width of ratchet 10, improve job stability, also be convenient to ratchet resetting cam 14 is loaded in it.This ratchet 10 can adopt steel plate to stamp out its expansion shape, and then the bending form, its seaming chuck 15 and push-down head 16 can moulding in punching press and bending process.Bearing block 11 also adopts steel plate to stamp out its expansion shape, and then bending forms.Ratchet resetting cam 14 also is stamped to form with steel plate, plush copper 17 on it, down the outer plush copper 20 of plush copper 18, inside recess 19 and arc directly when stamping-out punching press come out.Can make couch handrail usefulness for foot rest 9 before making after front bedstead 2 upsets, its shape is preferably the type of falling .Described hinged 8 are made of preceding hinge page or leaf 21 back hinge pages or leaves 22 and jointed shaft 23, and preceding hinge page or leaf 21 and back hinge page or leaf 22 are connected with adjacent bedstead respectively, and back hinge page or leaf 22 be a fork structure, cut with scissors after preceding hinge page or leaf 21 front ends place in pages 22 the fork, are articulated with jointed shaft 23.In order to make front bedstead 2, a folding position bedstead 3 can accurately turn over to horizontal level and upturned position, is equipped with the level that can contact mutually spacing 24,25 and overturn spacing 26,27 on preceding hinge page or leaf 21 back hinges pages 22.

The utility model is particularly suitable for the less family in room and uses.

Claims (4)

1, a kind of collapsible folding seat bed, comprise mattress (1), bedstead and backrest (5), it is characterized in that bedstead is by front bedstead (2), folding position bedstead (3) and back bedstead (4) are successively by hinged the forming of hinge (8), be respectively equipped with preceding foot rest (9) and rear leg (7) in the both sides, lower end of front bedstead (2) and back bedstead (4), backrest (5) is hinged with back bedstead (4) rear end by the ratchet device (6) of front end both sides, this ratchet device (6) is by ratchet (10), jointed shaft (11), bearing block (12), ratchet (13) and ratchet resetting cam (14) are formed, ratchet (10) is connected with back bedstead (4) with backrest (5) respectively with bearing block (12), hinged by jointed shaft (11), ratchet (13) is arranged on the bearing block (12), ratchet resetting cam (14) also is socketed on the jointed shaft (11), the front upper part of this ratchet resetting cam (14) and preceding bottom are respectively equipped with one and go up plush copper (17) and following plush copper (18), have a hole that can allow the ratchet front end stretch into (19) at following plush copper (18) front end, between pit (19) and last plush copper (17), plush copper outside the arc (20) is arranged, also be provided with the seaming chuck (15) and the push-down head (16) that can contact with following plush copper (18) with last plush copper (17) at the upper back and the rear lower of ratchet (10).

2, folding seat bed according to claim 1, the ratchet (10) that it is characterized in that ratchet device (6) is the dicycly structure, its preceding semicircle has ratchet, the rear end links together, its bearing block (12) is a fork structure, by jointed shaft (11) ratchet (10) is loaded in its prong, ratchet resetting cam (14) is socketed on the jointed shaft (11) between ratchet (10) two-wheel, and the ratchet (13) that cooperates with ratchet (10) is installed in the prong of bearing block (12).

3, folding seat bed according to claim 1 is characterized in that preceding foot rest (9) is the reverse mould structure.

4, folding seat bed according to claim 1, it is characterized in that hinge (8) is to be made of preceding hinge page or leaf (21), back hinge page or leaf (22) and jointed shaft (23), back hinge page or leaf (22) is a fork structure, the front end of preceding hinge page or leaf (21) places in the fork of back hinge page (22), hinged with jointed shaft (23), on preceding hinge page (21) and back hinge page or leaf (22), be equipped with the spacing head of the level that can contact mutually (24,25) and the spacing head (26,27) that overturns.

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