CN2365977Y

CN2365977Y - Folding sofa bed

Info

Publication number: CN2365977Y
Application number: CN 99205447
Authority: CN
Inventors: 张长生
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-17
Filing date: 1999-03-17
Publication date: 2000-03-01
Anticipated expiration: 2009-03-17

Abstract

The utility model relates to a double folding sofa bed which can be turned over forwards and has a back rest. Bed plates of the utility model comprise a cushion bed plate and a back rest bed plate, wherein, the cushion bed plate is hinged with a right armrest and a left armrest, and the back rest bed plate is hinged with bed legs. The utility model is provided with two sets of symmetrical turnover mechanisms, each of which comprises a rocking rod and a connecting rod. One end of the rocking rod is hinged with the cushion bed plate, and the other end is hinged with the connecting rod and the back rest bed plate. The other end of the connecting rod is hinged with the bed legs. A locating device comprises convex blocks on the side edge of the back rest bed plate, two convex blocks on the rear extending end of the rocking rod and two right-angled blocks arranged in the corners of the armrests. The utility model has reasonable structure and can be turned over forwards to be folded and arranged. The turnover mechanisms are easily and quickly used, and are positioned reliably. The whole structure is stable and firm, and the appearance is beautiful.

Description

Before turn over backrest two folding divans

The utility model relates to the furniture of steel and wood in the daily necessities, and concrete is turns over backrest two folding divans before a kind of.

China is populous, everybody will sleep, but per-capita housing is less, therefore to bed accessory, particularly occupation of land province, sofa and bed accessory attractive in appearance, Energy and comfort are in great demand, in numerous furniture kinds, but the collapsible two purpose sofas-beds of double as sofa and bed accessory is to use kind widely, after being generally, prior art turns over the formula structure, the complex structure that has, and inconvenience is put in folding, exhibition; Though the structure that has is simple, positioning stablity is insecure, and prior art has further improvement, perfect necessity, increases new kind.

The purpose of this utility model provides turns over backrest two folding divans before a kind of, rational in infrastructure, turns over the formula folding before can carrying out and puts, and switching mechanism is easy to use, quick, and the location is reliable, overall structure is stable, firmly, good looking appearance.

The purpose of this utility model is achieved in that

Turn over backrest two folding divans before a kind of, mainly by bed board, cushion, handrail and switching mechanism, positioner is formed, and it is characterized in that:

Bed board comprises a cushion bed board and a backrest bed board, and plane is equiped with cushion respectively on it, and both sides, forward position, cushion bed board bottom surface are connected with bearing, this bearing support one rotating shaft, and these rotating shaft two ends are articulated in left and right handrail respectively; Each affixed bearing of both sides, forward position, backrest bed board bottom surface, this bearing have each hinged footpost of rotating shaft; When backrest bed board horizontal positioned, described cushion bed board is concordant with end face on the backrest bed board;

Switching mechanism has two symmetrical groups, respectively comprise a rocking bar and a connecting rod, position after the side middle part that this rocking bar one end is articulated in the cushion bed board is leaned on, rocking bar is held the rear end that is articulated in connecting rod in addition, position after the side middle part that its hinge pin is fixed in the backrest bed board is leaned on, this connecting rod end in addition are articulated in the upper side of described footpost; The length of described rocking bar, connecting rod suitably makes the backrest bed board maintain contacting of certain interval in its lower edge, front, upset back with cushion on the cushion bed board, and the seat cushion bed board, and the backrest bed board respectively becomes constant slope and constitutes sofa with ground;

Positioner comprises: projection F is equipped with in the side rear end at the backrest bed board, is equipped with two projection B and C on the section of stretching behind the rocking bar; When backrest bed board horizontal positioned, projection F places rocking bar top, and projection B and the C lower edge that contacts cushion bed board side is realized spacingly to the backrest bed board simultaneously, makes cushion bed board and backrest bed board maintenance level; Turn to when retreading the position at the backrest bed board, the rocking arm side contacts in the block D that is fixedly arranged on the handrail inwall and realizes the spacing of bed board obliquity;

End face and inwall corner at two handrails, the extreme position that close backrest bed board upwards overturns and tiltedly puts, respectively be provided with a square groove, the ccontaining square block A of this groove, this block A is articulated in the lower edge of handrail square groove with hinge, this link stopper A overturn downwards the back realize preventing the backrest bed board to revolution turn over spacing.

The purpose of this utility model can also realize by following measure:

Described positioner also comprises: have a lockhole E on a side above the close footpost of backrest bed board, in the relevant position of a handrail one dead bolt is housed, suit one compression spring on the pull bar of this dead bolt, the rear end of this pull bar is installed with stay cord, turn to the position of retreading when making the sofa backrest and using at the backrest bed board, this dead bolt penetrates the lockhole of backrest bed board and realizes spacing.

The structure of described cushion bed board, backrest bed board is all identical with shape, and the angle steel that each is inwardly stood up by three limits and the square tube of a side are welded into framework, constitutes with the inside casing of flat braiding with the extension spring tension in the framework.

The utility model has following actively useful effect:

Before to turn over backrest two folding divans are a kind of novel furnitures, be a standard cushion double bed during expansion, be the couch identical during gathering with double bed length.Because of backrest is to be supported by the rocking bar that two energy rotate in certain angle, when rocking bar dumped forward, turned over forward on the backrest base, pull bar meeting automatic deploying and retracting foreleg; So characteristics such as simple to operate, reliable operation are arranged; And facial features are easily decorated before the sofa, do not see the vestige of bed; Be applicable to and be placed in the parlor, the bedroom; Need not to move the position when need launching, one draws promptly and opens, convenient and swift, the usefulness of the most suitable house and the lodging of detaining a guest.

Now in conjunction with the accompanying drawings with preferred embodiment:

Fig. 1 is that the utility model keeps flat the construction profile schematic diagram of making bed usefulness;

The same Fig. 1 of Fig. 2 is for tiltedly putting the construction profile schematic diagram of using as sofa with turning over before the backrest bed board;

The switching mechanism of Fig. 3 diagrammatic sketch 2 and positioner;

The position of switching mechanism in Fig. 4 diagrammatic sketch 1;

Fig. 5 shows that the backrest bed board is in upset;

Fig. 6 shows the structure that is arranged at the positive stop on the handrail;

Fig. 7 shows the structure of dead bolt position-limit mechanism;

Fig. 8 is the structure of the rotating shaft among Fig. 1;

Fig. 9 is a kind of structural representation of block D among Fig. 3;

Figure 10 is the local parting view of the A-A of handrail among Fig. 1;

Figure 11 is a kind of structural representation of the utility model bed board.

Accompanying drawing number:

1. cushion bed board 101. cushions 102. bearings

103. rotating shaft 104. angle steel 105. angle steel

106. angle steel 107. (steel) square tube 108. extension springs

109. inside casing 2. backrest bed boards 201. cushions

202. bearing 3A. handrail 3B. handrail

301. square groove 302. hinges

4A. footpost 4B. footpost

5. rocking bar 501. hinge pins 502. hinge pins

6. connecting rod 601. hinge pins

7. dead bolt 701. pull bars

702. spring 703. stay cords 8. stay cords

9. pull bar

A. block B. block C. block

D. block E. lockhole F. block

Please refer to Fig. 1 Fig. 2, turn over backrest two folding divans before of the present utility model, mainly by bed board, cushion, handrail and switching mechanism, positioner is formed;

Bed board comprises a cushion bed board 1 and a backrest bed board 2, plane is equiped with cushion 101,201 respectively on it, both sides, forward position, cushion bed board 1 bottom surface are connected with bearing 102, and Fig. 8 is seen in this bearing support one rotating shaft 103, and these rotating shaft two ends are articulated in left and

right handrail

3A, 3B respectively; Each affixed bearing 202 of the both sides, forward position, bottom surface of backrest bed board 2, this bearing have rotating shaft each a hinged footpost 4A, 4B; When backrest bed board 2 horizontal positioned, the concordant and maintenance level of last end face of described cushion bed board 1 and backrest bed board 2, be made for double bed and use this moment.

Please be simultaneously with reference to Fig. 3 Fig. 4 Fig. 5, switching mechanism has two symmetrical groups, respectively comprise a rocking bar 5 and a connecting rod 6, position after the side middle part that these rocking bar 5 one ends are articulated in cushion bed board 1 is leaned on, rocking bar 5 is held the rear end that is articulated in connecting rod 6 in addition, position after the side middle part that its hinge pin 502 is fixed in backrest bed board 2 is leaned on, this connecting rod 6 end in addition are articulated in the upper side of described footpost 4A, 4B with hinge pin 601; Suitably (the design is the double rocker mechanism in " theory of mechanics " to the length of described rocking bar 5, connecting rod 6, the Design of length of its rocking bar, connecting rod is mechanician's a common sense, this specification is not given unnecessary details the long method for designing of bar), and make backrest bed board 2 maintain contacting of certain interval with cushion on the cushion bed board 1 in its lower edge, front, upset back; Each becomes seat cushion bed board 1 and backrest bed board 2 gradient (this gradient is identical with common sofa, and this specification does not limit) with ground and constitutes and sit, lean on comfortable sofa.

Positioner comprises: projection F is equipped with in the side rear end at backrest bed board 2, on the section of stretching behind the rocking bar 5, be equipped with two projection B and C, when backrest bed board 2 horizontal positioned, projection F places the top of rocking bar 5 just, projection B and C contact the side lower edge in cushion bed board 1 simultaneously, realize spacing to backrest bed board 2.Turn to when retreading the position at backrest bed board 2, the side of Rocker arm 5 contacts in the block D that is fixedly arranged on handrail 4A, 4B inwall and realizes the spacing of bed board obliquity;

Please be simultaneously with reference to Fig. 6, end face and inwall corner at two

handrail

3A, 3B, the extreme position that close backrest bed board upwards overturns and tiltedly puts, respectively be provided with a square groove 301, this groove 301 ccontaining square block A, this block A is connected to the lower edge of handrail square groove 301 with hinge 302 dumplings, this link stopper A overturn downwards the back realize preventing backrest bed board 2 to revolution turn over spacing.

The above is used for spacing projection, block A, B, C, D, E, F all symmetrical two.

Please be simultaneously with reference to Fig. 7, in preferred embodiment, described positioner also comprises: have a lockhole E on a side above the close footpost of backrest bed board 2, one dead bolt 7 is housed in the relevant position of a handrail 3A, suit one compression spring 702 on the pull bar 701 of this dead bolt, the rear end of this pull bar 701 is installed with stay cord 703, turn to the position of retreading when making the sofa backrest and using at backrest bed board 2, and the lockhole E that this dead bolt 7 penetrates backrest bed board 2 realizes spacing.

In the embodiment shown in fig. 11, the structure of described cushion bed board 1, backrest bed board 2 is all identical with shape, each forms three limits (a two ends horizontal edge and a longitudinal edge) by three angle steel that inwardly stand up 104,105,106, the square tube 107 of one side is another longitudinal edge, four side welds connect the formation framework, the inside casing of straining with flat braiding with extension spring 108 in the framework 109.

Fig. 9 shows a kind of structure embodiment of block D, and this block is fixed in the two ends of a pull bar 9, and block D is connected in the inboard of left and

right handrail

3A, 3B with screw, and this pull bar 9 plays the connection supporting role to two

side handrail

3A, 3B simultaneously.

Figure 10 shows a kind of embodiment of

handrail

3A, 3B, and this handrail connects the plank framework by steel square tube 107 and constitutes, and it is covered with decorates cushion course (accompanying drawing does not show).

Claims

1. turn over backrest two folding divans before one kind, mainly by bed board, cushion, handrail and switching mechanism, positioner is formed, and it is characterized in that:

2. turn over backrest two folding divans before as claimed in claim 1, it is characterized in that: described positioner also comprises: have a lockhole E on a side above the close footpost of backrest bed board, in the relevant position of a handrail one dead bolt is housed, suit one compression spring on the pull bar of this dead bolt, the rear end of this pull bar is installed with stay cord, turn to the position of retreading when making the sofa backrest and using at the backrest bed board, this dead bolt penetrates the lockhole of backrest bed board and realizes spacing.

3. turn over backrest two folding divans before as claimed in claim 1, it is characterized in that: the structure of described cushion bed board, backrest bed board is all identical with shape, the angle steel that each is inwardly stood up by three limits and the square tube of a side are welded into framework, constitute with the inside casing of flat braiding with the extension spring tension in the framework.