CN2917425Y

CN2917425Y - Two-purpose sofa bed

Info

Publication number: CN2917425Y
Application number: CN 200620034298
Authority: CN
Inventors: 赵云志
Original assignee: 王春
Priority date: 2006-05-24
Filing date: 2006-05-24
Publication date: 2007-07-04
Anticipated expiration: 2016-05-24

Abstract

The utility model discloses a sofa bed. The utility model is characterized in that an armrest framework may ascend or descend horizontally along with deflexion of a backrest framework, when the backrest framework undergoes a backward deflexion to a horizontal position, the armrest framework may descend to a position parallel to the surface of a bench hassock so that users may go onto and down the sofa bed with normal gestures, thereby effectively enhancing the use convenience of the dual-functional sofa bed. The utility model comprises a stationary framework (10), a backrest framework (11), an active framework (30), and two armrest frameworks (12); wherein, the backrest framework (11) is rotatably connected with the stationary framework (10); and the two armrest frameworks (12) are respectively fixed at the two sides of the stationary framework (10). The two armrest frameworks (12) are respectively articulated with two pieces of swing links (13, 14), the two armrest frameworks (12), the two swing links (13, 14) and the stationary framework (10) form a mechanism in parallelogram, and the backrest framework (11) is articulated with a swing link (13) positioned at the rear of the stationary framework (10).

Description

Two purpose sofas-beds

Technical field

The utility model relates to divan, particularly a kind of two purpose sofas-beds that is available as sofa, divan.

Background technology

Conversion between two purpose sofas-beds can be present, be crouched has characteristics in light weight, that easily move, for the layout in room has been brought convenience, has therefore entered increasing family.

Two purpose sofas-beds structurally is made up of backrest skeleton, support frame and the backing cushion made from high-elastic foam, seat cushion etc.Because backrest skeleton, support frame adopt hollow tube to make more.In order to form the sufficient length that couches for people, support frame is made of fixedly skeleton and movable skeleton, when as divan, and the expansion of movable skeleton relative fixed skeleton, and together form bed surface with the backrest skeleton of toppling over backward.For making the tilt adjustable of backrest skeleton, backrest skeleton and fixedly be provided with the governor motion of regulating backrest skeleton inclination angle between the skeleton is as ratchet, detent mechanism etc.Movable skeleton can adopt turnover type, be that movable skeleton is articulated in fixedly on the skeleton, movable skeleton can inwardly turn to the fixedly below of skeleton, perhaps outwards turn to horizontal level, but this mode is owing to be subjected to the fixedly restriction of skeleton terrain clearance, open or two purpose sofas-beds is turned over backward or to an inclination during folding movable skeleton, operation inconvenience, and effort.Therefore, preferred mode is movable skeleton to be designed to plug-type, and movable skeleton is concealed in fixedly below the skeleton at ordinary times, can outwards pull out easily.Fixedly the both sides of skeleton respectively are provided with a handrail skeleton, and the handrail skeleton forms handrail by coating high-elastic foam or flexible fabric, so that it is more comfortable to be used as the sofa time spent.In existing two purpose sofas-beds, the handrail skeletal fixation is arranged at the fixedly both sides of skeleton, when the backrest skeleton, fixedly skeleton, when movable skeleton is combined into bed surface, the handrail skeleton can't reduce with respect to the fixing height between the skeleton plane, because the handrail skeleton is positioned at the middle part of bed surface, and the highland projection, this has brought great inconvenience for people's use, be that the user can not get in and out of bed easily by normal attitude, health need be moved the position of movable skeleton when leaving the bed.In addition, existing spine frame incidence regulating mechanism is arranged at the backrest skeleton and fixedly on the skeleton point, owing to be subjected to the restriction of installing space, the size of this class incidence regulating mechanism is less, and its structural strength deficiency easily is damaged in use for some time.

The utility model content

Technical problem to be solved in the utility model provides a kind of two purpose sofas-beds, and its height of armrests decreases when as divan, so that the user can get in and out of bed easily by normal attitude.

The technical scheme that its technical problem that solves the utility model adopts is: two purpose sofas-beds of the present utility model, comprise fixedly skeleton, backrest skeleton, movable skeleton and two handrail skeletons, the backrest skeleton and fixedly skeleton be rotatably connected, two handrail skeletons lay respectively at the fixedly both sides of skeleton, it is characterized in that: respectively be hinged with two forks on described two handrail skeletons, handrail skeleton and two forks, bone fixation are configured to parallel-crank mechanism; Described backrest skeleton is hinged with the fork that is positioned at fixing skeleton rear portion.

As improvement of the technical scheme, can synchronization actions for making two handrail skeletons, described fixedly two the forks employing integrative-structures of skeleton both sides and rear portion that lay respectively at, promptly the lower end of two forks has below fixing skeleton across the fixing cross bar of skeleton; Described fixedly skeleton below is set with at least one riser, and described cross bar passes riser.

On the basis of above technical scheme, the utility model also to be used to regulate the backrest skeleton and fixedly between the skeleton installation site of the incidence regulating mechanism of angle and structure improve so that it has enough structural strengths, prolong its service life.Described cross bar and riser are provided with and are used to regulate backrest skeleton and the fixing incidence regulating mechanism of angle between the skeleton.Described incidence regulating mechanism comprises: ratchet is fixedly set on the cross bar; Ratchet is installed on the riser by bearing pin, and its front end matches with the ratchet profile of tooth, the rear end then be fixed on the riser extension spring and be connected; Limiting plate is installed on the riser by bearing pin, matches with ratchet to form the cam mechanism of restriction ratchet deflection angle and control ratchet rotation direction.

The beneficial effects of the utility model are, the handrail skeleton can level rise and descend in company with the deflection of backrest skeleton, when the backrest skeleton deflects to horizontal level backward, the handrail skeleton can drop to and concordant position, seat cushion surface, the user can get in and out of bed easily by normal attitude, has improved the ease of use of two purpose sofas-beds effectively.

Description of drawings

This specification comprises following five width of cloth accompanying drawings:

Fig. 1 is the left view of the utility model two purpose sofas-beds;

Fig. 2 is the longitudinal sectional view (removing backing cushion, seat cushion) of the utility model two purpose sofas-beds;

Fig. 3 is the longitudinal sectional view (remove backing cushion, seat cushion, movable skeleton is in the state of pulling out) of the utility model two purpose sofas-beds;

Fig. 4 is the vertical view (part) of movable skeleton and guide rail in the utility model two purpose sofas-beds;

Fig. 5 is a backrest angle adjusting device perspective view in the utility model two purpose sofas-beds.

Parts, position and numbering among the figure: fixedly skeleton 10, backrest skeleton 11, handrail skeleton 12, fork 13, fork 14, cross bar 15, riser 16, guide rail 17, seat cushion 20, movable seat cushion 21, armrest pad 22, backing cushion 23, movable skeleton 30, supporting leg 31, roller 32, roller 33, ratchet 40, spacer pin 41, ratchet 42, extension spring 43, limiting plate 44, pin 45, groove 46, torsion spring 47.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

With reference to Fig. 2, two purpose sofas-beds of the present utility model comprises fixedly skeleton 10, backrest skeleton 11, movable skeleton 30 and two handrail skeletons 12, and backrest skeleton 11 is rotatably connected with fixing skeleton 10, and two handrail skeletons 12 lay respectively at the fixedly both sides of skeleton 10.With reference to Fig. 1, be fixed with backing cushion 23 on the backrest skeleton 11, fixedly be fixed with seat cushion 20 on the skeleton 10, also be provided with the movable seat cushion 21 that is attached thereto on the seat cushion 20, after launching after fixedly skeleton 10 is drawn out, this movable seat cushion 21 can overturn forward and place on the movable skeleton 30.With reference to Fig. 2, respectively be hinged with two

forks

13,14 on described two handrail skeletons 12, handrail skeleton 12 and two

forks

13,14, fixedly skeleton 10 constitutes parallel-crank mechanisms.Described backrest skeleton 11 is hinged with the fork 13 that is positioned at fixing skeleton 10 rear portions.With reference to Fig. 3, handrail skeleton 12 can level rise and descend in company with the deflection of backrest skeleton 11, when backrest skeleton 11 deflects to horizontal level backward, handrail skeleton 12 can drop to the surperficial concordant position of basic and seat cushion 20, the user can get in and out of bed easily by normal attitude, has improved the ease of use of two purpose sofas-beds effectively.

With reference to Fig. 3, two handrail skeletons can synchronization actions, describedly lay respectively at fixedly that two forks 13 of skeleton 10 both sides and rear portion can preferably adopt integrative-structure, and promptly the lower end of two forks 13 has below fixing skeleton 10 across the fixing cross bar 15 of skeleton 10.Described fixedly skeleton 10 belows are set with at least one riser 16, and described cross bar 15 passes riser 16.

The utility model also to be used to regulate backrest skeleton 11 and fixedly between the skeleton 10 installation site of the incidence regulating mechanism of angle and structure improve so that it has enough structural strengths, prolong its service life.With reference to Fig. 5, described cross bar 15 and riser 16 are provided with and are used to regulate backrest skeleton 11 and the fixing incidence regulating mechanism of angle between the skeleton 10.Described incidence regulating mechanism comprises: ratchet 40 is fixedly set on the cross bar 15; Ratchet 42 is installed on the riser 16 by bearing pin, and its front end matches with ratchet 40 profiles of tooth, the rear end then be fixed on riser 16 extension springs 43 and be connected; Limiting plate 44 is installed on the riser 16 by bearing pin, matches with ratchet 42 to form the cam mechanism of restriction ratchet 42 deflection angles and control ratchet 40 rotation directions.In addition, on riser 16, also be provided with the spacer pin 41 that is used to limit ratchet 40 deflection angles.Show a kind of concrete form of described cam mechanism among Fig. 5 simultaneously, with reference to this figure, described cam mechanism is made of segmental arc on the pin 45 and ratchet 42 inclines that are fixed on the limiting plate 44 and the groove 46 that is opened in this segmental arc middle part, pin 45 is slidingly matched with this segmental arc and groove 46, and described riser 16 is provided with the torsion spring 47 that acts on the limiting plate (44).

Described movable skeleton 30 can preferably adopt plug-type, and with reference to Fig. 2, Fig. 3 and Fig. 4, described fixedly skeleton 10 down either side are provided with one group of guide rail 17 to the mobile formation guiding of movable skeleton 30.With reference to Fig. 3, the cross section of described guide rail 17 is the groove shape with interior side opening, and both sides, described movable skeleton 30 rear end are provided with roller 33, and roller 33 is positioned at the groove of guide rail 12.In addition, as a kind of typical collocation form, with reference to Fig. 3, its lateral separation, front end upper edge of described movable skeleton 30 is set with two supporting legs 31, the lower end of these two supporting legs 31 is provided with the roller 32 that contacts with ground, and the setting of roller 32 makes the push-and-pull of movable skeleton 30 more laborsaving.

It is pointed out that some principles of top described the utility model two purpose sofas-beds that just explains through diagrams.Because the those of ordinary skill to constructed field is easy to carry out on this basis some modifications and change, therefore this specification be not be the utility model two purpose sofas-beds to be confined to shown in and in the described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.

Claims

1, two purpose sofas-beds, comprise fixedly skeleton (10), backrest skeleton (11), movable skeleton (30) and two handrail skeletons (12), backrest skeleton (11) is rotatably connected with fixing skeleton (10), two handrail skeletons (12) lay respectively at the fixedly both sides of skeleton (10), it is characterized in that: respectively be hinged with two forks (13,14) on described two handrail skeletons (12), handrail skeleton (12) and two forks (13,14), fixing skeleton (10) formation parallel-crank mechanism; Described backrest skeleton (11) is hinged with the fork (13) that is positioned at fixing skeleton (10) rear portion.

2, two purpose sofas-beds as claimed in claim 1, it is characterized in that: describedly lay respectively at fixedly that two forks (13) of skeleton (10) both sides and rear portion adopt integrative-structure, promptly the lower end of two forks (13) has below fixing skeleton (10) across the fixing cross bar (15) of skeleton (10); Described fixedly skeleton (10) below is set with at least one riser (16), and described cross bar (15) passes riser (16).

3, two purpose sofas-beds as claimed in claim 2 is characterized in that: described cross bar (15) and riser (16) are provided with and are used to regulate backrest skeleton (11) and the fixing incidence regulating mechanism of angle between the skeleton (10).

4, two purpose sofas-beds as claimed in claim 3 is characterized in that described incidence regulating mechanism comprises:

A. ratchet (40) is fixedly set on the cross bar (15);

B. ratchet (42) is installed on the riser (16) by bearing pin, and its front end matches with ratchet (40) profile of tooth, the rear end then be fixed on riser (16) extension spring (43) and be connected;

C. limiting plate (44) is installed on the riser (16) by bearing pin, matches with ratchet (42) to form the cam mechanism of restriction ratchet (42) deflection angle and control ratchet (40) rotation direction.

5, two purpose sofas-beds as claimed in claim 4, it is characterized in that: described cam mechanism is made of segmental arc on the pin (45) and ratchet (42) incline that are fixed on the limiting plate (44), the groove (46) that is opened in this segmental arc middle part, and pin (45) is slidingly matched with this segmental arc and groove (46); Described riser (16) is provided with the torsion spring (47) that acts on the limiting plate (44).

6, two purpose sofas-beds as claimed in claim 1 is characterized in that: described movable skeleton (30) adopts plug-type, promptly is provided with one group of guide rail (17) to the mobile formation guiding of movable skeleton (30) in described fixedly skeleton (10) down either side.

7, two purpose sofas-beds as claimed in claim 6 is characterized in that: the cross section of described guide rail (17) is the groove shape with interior side opening, and described movable skeleton (30) both sides, rear end are provided with roller (33), and roller (33) is positioned at the groove of guide rail (12).

8, two purpose sofas-beds as claimed in claim 6 is characterized in that: its lateral separation, front end upper edge of described movable skeleton (30) is set with two supporting legs (31), and the lower end of these two supporting legs (31) is provided with the roller (32) that contacts with ground.