阅读说明：本技术 一种折叠沙发 (Folding sofa ) 是由 王小强 林付峰 林小群 庄阿忠 于 2020-05-19 设计创作，主要内容包括：本发明提供了一种折叠沙发,包括：支座、靠背框架和坐垫框架；所述靠背框架与支座转动连接,所述坐垫框架与支座滑动连接；所述靠背框架位于背靠位置时,所述靠背框架与坐垫框架沿着靠背转动的方向发生干涉；所述靠背从背靠位置向平躺位置转动时,所述靠背框架与坐垫框架之间产生的干涉力推动所述坐垫框架在支座上滑动,以在靠背框架和坐垫框架之间形成避让空间。上述的沙发,在作为沙发使用时占地面积小,展开作为床使用时又会有足够的平躺面积。(The invention provides a folding sofa, comprising: a support, a back frame and a cushion frame; the backrest frame is rotationally connected with the support, and the cushion frame is slidably connected with the support; when the backrest frame is positioned at the backrest position, the backrest frame and the cushion frame interfere with each other along the rotation direction of the backrest; when the backrest rotates from the backrest position to the lying position, the interference force generated between the backrest frame and the cushion frame pushes the cushion frame to slide on the support, so that an avoiding space is formed between the backrest frame and the cushion frame. The sofa occupies small area when being used as a sofa, and has enough lying area when being unfolded to be used as a bed.)

1. A folding sofa, characterized by comprising: a support, a back frame and a cushion frame;

the backrest frame is rotationally connected with the support, and the cushion frame is slidably connected with the support; when the backrest frame is positioned at the backrest position, the backrest frame and the cushion frame interfere with each other along the rotation direction of the backrest; when the backrest rotates from the backrest position to the lying position, the interference force generated between the backrest frame and the cushion frame pushes the cushion frame to slide on the support, so that an avoiding space is formed between the backrest frame and the cushion frame.

2. The folding sofa of claim 1, wherein: the backrest frame and the cushion frame are connected through a push-pull sheet; when the backrest frame rotates from the flat lying position to the backrest position, the push-pull sheet pulls the cushion frame to slide on the support so as to fill the avoiding space.

3. The folding sofa of claim 2, wherein: the push-pull piece is L-shaped, the tail end of the short side of the push-pull piece is connected with the backrest frame, and the tail end of the long side of the push-pull piece is connected with the cushion frame.

4. A folding sofa according to any of claims 1-3, characterised in that: the support comprises supporting legs on two sides and a supporting surface connected between the supporting legs.

5. The folding sofa of claim 4, wherein: the cushion frame is in sliding connection with the support surface.

6. The folding sofa of claim 5, wherein: two inner side surfaces of the cushion frame along the length direction are respectively provided with a slide rail extending along the width direction; the supporting surface is provided with a roller assembly, and the roller assembly extends into the cushion frame from the bottom of the cushion frame and is in sliding connection with the sliding rail.

7. The folding sofa of claim 4, wherein: the backrest frame is rotatably connected with the supporting legs.

8. The folding sofa of claim 7, wherein: the backrest frame is connected with the supporting legs in a positioning mode through positioning pieces; the positioning member secures the back frame in either the back position or the bed flat position.

9. The folding sofa of claim 8, wherein: the positioning piece comprises a positioning pin arranged on the backrest frame and a positioning pin hole arranged on the supporting leg; the locating pin is provided with two locating pin holes, and when the locating pin rotates to a position corresponding to one of the locating pin holes, the locating pin and the locating hole are in limit connection along the rotating direction.

10. The folding sofa of claim 9, wherein: the operation component is used for releasing the limit connection between the positioning pin and the positioning pin hole and is linked with the positioning pin through a guy cable; when the inhaul cable is pulled, the positioning pin moves towards the direction far away from the positioning pin hole.

Technical Field

The invention relates to furniture, in particular to a sofa.

Background

The sofa bed is multifunctional furniture which can realize dual purposes of a sofa and a bed, can meet various requirements of users, and improves the space utilization rate.

The existing sofa bed usually rotates the armrest and the backrest to the same plane to form a larger bed body through the rotation of the armrest and the backrest, so that the sofa bed is converted into a bed state, however, the switching process of the existing sofa bed between the bed state and the sofa state is troublesome. In addition, in order to increase the area of the sofa bed, the area of the backrest needs to be correspondingly increased, so that when the sofa bed is used as a sofa, the height of the backrest is very high, only the back of the traditional sofa is usually leaned on the sofa, and the head of a consumer can be leaned on the backrest by the sofa, which is very uncomfortable.

Disclosure of Invention

The invention aims to provide a sofa which has small floor area when used as a sofa and has enough lying area when being unfolded to be used as a bed.

In order to solve the above technical problem, the present invention provides a folding sofa, comprising: a support, a back frame and a cushion frame;

the backrest frame is rotationally connected with the support, and the cushion frame is slidably connected with the support; when the backrest frame is positioned at the backrest position, the backrest frame and the cushion frame interfere with each other along the rotation direction of the backrest; when the backrest rotates from the backrest position to the lying position, the interference force generated between the backrest frame and the cushion frame pushes the cushion frame to slide on the support, so that an avoiding space is formed between the backrest frame and the cushion frame.

In a preferred embodiment: the backrest frame and the cushion frame are connected through a push-pull sheet; when the backrest frame rotates from the flat lying position to the backrest position, the push-pull sheet pulls the cushion frame to slide on the support so as to fill the avoiding space.

In a preferred embodiment: the push-pull piece is L-shaped, the tail end of the short side of the push-pull piece is connected with the backrest frame, and the tail end of the long side of the push-pull piece is connected with the cushion frame.

In a preferred embodiment: the support comprises supporting legs on two sides and a supporting surface connected between the supporting legs.

In a preferred embodiment: the cushion frame is in sliding connection with the support surface.

In a preferred embodiment: two inner side surfaces of the cushion frame along the length direction are respectively provided with a slide rail extending along the width direction; the supporting surface is provided with a roller assembly, and the roller assembly extends into the cushion frame from the bottom of the cushion frame and is in sliding connection with the sliding rail.

In a preferred embodiment: the backrest frame is rotatably connected with the supporting legs.

In a preferred embodiment: the backrest frame is connected with the supporting legs in a positioning mode through positioning pieces; the positioning member secures the back frame in either the back position or the bed flat position.

In a preferred embodiment: the positioning piece comprises a positioning pin arranged on the backrest frame and a positioning pin hole arranged on the supporting leg; the locating pin is provided with two locating pin holes, and when the locating pin rotates to a position corresponding to one of the locating pin holes, the locating pin and the locating hole are in limit connection along the rotating direction.

In a preferred embodiment: the operation component is used for releasing the limit connection between the positioning pin and the positioning pin hole and is linked with the positioning pin through a guy cable; when the inhaul cable is pulled, the positioning pin moves towards the direction far away from the positioning pin hole.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

1. the invention provides a folding sofa, when a backrest frame is positioned at a backrest position, a part of the backrest frame is interfered with a cushion frame, namely, when viewed from the horizontal direction, a part of the backrest frame is shielded by the cushion frame. Therefore, the exposed backrest frame is less, the height of the backrest in the traditional sofa is smaller than the width of the cushion, and the sofa is more attractive visually. When the backrest is positioned at the lying position, the backrest frame can be horizontally moved, so that the part of the backrest frame shielded by the cushion frame can also be rotated to the lying position, the lying area is increased, and a user can feel more comfortable when lying.

2. The invention provides a folding sofa, wherein a backrest frame and a cushion frame are connected together through a push-pull sheet, when the backrest frame rotates from a flat lying position to a backrest position, the push-pull sheet can generate pulling force on the cushion frame to enable the cushion frame to move horizontally and reset towards the direction close to the backrest frame, a user does not need to manually reset the cushion frame, and the operation is simple.

3. The invention provides a folding sofa, wherein the backrest frame and the supporting legs are positioned by the positioning pieces, so that the backrest frame can be positioned at the backrest position and the lying position, and a user does not feel shaking when using the folding sofa. When the user rotates the backrest frame, the positioning of the positioning piece can be released only by pulling the operating component. Is very quick.

Drawings

FIG. 1 is a schematic view of a sofa in a back rest mode in accordance with a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the sofa in a lying mode in accordance with the preferred embodiment of the present invention;

FIG. 3 is a sectional view of the sofa in the back rest mode in accordance with the preferred embodiment of the present invention;

FIG. 4 is a sectional view of the sofa in an intermediate position in accordance with the preferred embodiment of the present invention;

FIG. 5 is a sectional view of the preferred embodiment of the sofa in a lie flat mode;

FIG. 6 is a schematic frame view of the sofa in the back rest mode in accordance with the preferred embodiment of the present invention;

FIG. 7 is a schematic view of the sofa frame in the flat-bed mode according to the preferred embodiment of the present invention;

fig. 8 is an exploded view of the preferred embodiment of the sofa frame in the lie flat mode.

Fig. 9 is a schematic diagram of the motion trajectory of the push-pull plate in the preferred embodiment of the invention.

Detailed Description

The technical solution of the present invention is further explained by the accompanying drawings and the specific embodiments.

Referring to fig. 1-8, the present invention provides a folding sofa comprising: a support 1, a backrest frame 2 and a cushion frame 3;

the backrest frame 2 is rotationally connected with the support 1, and the cushion frame 3 is slidably connected with the support 1; when the backrest frame 2 is located at the backrest position, the backrest frame 2 and the cushion frame 3 interfere with each other along the backrest rotation direction; when the backrest rotates from the backrest position to the lying position, the interference force generated between the backrest frame 2 and the cushion frame 3 pushes the cushion frame 3 to slide on the support 1, so that an avoiding space is formed between the backrest frame 2 and the cushion frame 3.

In the folding sofa, when the back frame 2 is located at the back-rest position, a part of the back frame 2 interferes with the seat cushion frame 3, that is, a part of the back frame 2 is shielded by the seat cushion frame 3 when viewed in a horizontal direction. Thus, the exposed backrest frame 2 is less, the height of the backrest in the traditional sofa is more consistent with the width of the seat cushion, and the sofa is more attractive visually. And when the back was located the position of lying, through the translation of cushion frame 3 for that a part back frame 2 that is sheltered from by cushion frame 3 also can rotate the position of lying, and this just increases the area of lying, lets the user more comfortable when lying.

In this embodiment, in order to allow the back frame 2 to rotate from the lying position to the back position, the cushion frame 3 can be moved back and forth, the structure is adopted: the backrest frame 2 and the cushion frame 3 are connected through a push-pull sheet 4; when the backrest frame 2 rotates from the lying position to the backrest position, the push-pull sheet 4 pulls the cushion frame 3 to slide on the support 1, so that the avoiding space is filled.

In this embodiment, the push-pull plate 4 is L-shaped, and the end of the short side thereof is connected to the back frame 2, and the end of the long side thereof is connected to the seat frame 3. Also, when the back frame 2 is positioned at the back-to-back position, the distal ends of the short sides are lower than the distal ends of the long sides in the height direction. When the back frame 2 is in the lying position, the end of the short side is higher than the end of the long side in the height direction. Thus, when the backrest frame 2 rotates from the lying position to the backrest position, before the end of the short side rotates to be at the same height as the end of the long side, the backrest frame 2 moves towards the direction close to the cushion frame 3, and at the same time, the cushion frame 3 moves towards the direction away from the backrest frame 2, so that the backrest frame 2 has enough rotating space, and when the backrest frame 2 rotates until the end of the short side is lower than the end of the long side, the backrest frame 2 moves towards the direction away from the cushion frame, so that the push-pull plate 4 pulls the cushion frame 3 to slide towards the direction close to the backrest frame 2 to fill the avoiding space, and the movement track of the push-pull plate 4 is shown in fig. 9, and it can be seen that when the backrest frame 2 rotates from the backrest position to the lying position, the connecting end of the push-pull plate 4 and the backrest frame 2 makes a circular movement around the rotating shaft of the backrest frame 2.

In order to fix the push-pull plate 4, the backrest frame 2 and the cushion frame 3 are both provided with two lugs 21 and 31, an insertion groove for accommodating the push-pull plate 4 is formed between the lugs 21 and 31, the two lugs 21 and 31 are respectively provided with a fixing hole, and the long end or the short end of the push-pull plate 4 is inserted into the insertion groove and then connected with the fixing hole. The push-pull plate 4 is designed to be L-shaped, which mainly prevents the backrest frame 2 from interfering with the push-pull plate 4 during the rotation process and preventing the backrest frame from being unable to rotate normally, and the L-shaped push-pull plate can be also designed to be arc-shaped. Alternatively, in the case where the back frame 2 does not interfere with the push-pull plate 4 during rotation, it is also possible to design the push-pull plate 4 directly in a straight line, which is a simple alternative to the present embodiment.

In order to realize the rotation of the back frame 2 and the sliding of the seat cushion frame 3, in the present embodiment, the seat 1 includes support legs 11 on both sides and a support surface 12 connected between the support legs 11. The seat cushion frame 3 is slidably connected to the support surface 12. The support surface 12 thus serves both the purpose of supporting the cushion frame 3 and also allows the cushion frame 3 to slide relative to the support surface 12.

Specifically, the seat cushion frame 3 has slide rails 32 extending in the width direction on both inner side surfaces in the longitudinal direction; the supporting surface 12 is provided with a roller assembly 14, and the roller assembly 14 extends into the cushion frame 3 from the bottom of the cushion frame 3 and is slidably connected with the slide rail 32. The roller assembly 14 comprises an angle steel, one flat surface of which is fixed on the support surface 12, and the other flat surface is provided with two rollers. The rollers are incorporated in the slide rails 32, so that the purpose of the translational rolling of the seat cushion frame 3 relative to the support surface 12 is achieved. And because of the restriction of the push-pull sheet 4, when the backrest frame 2 does not rotate, the cushion frame 3 has no way to slide relative to the supporting surface 12, so that the position of the cushion frame 3 can be kept fixed, no shaking occurs, and the comfort of use is improved.

In this embodiment, the backrest frame 2 is rotatably connected to the support legs 11. Two side surfaces of the backrest frame 2 along the length direction are respectively provided with a rotating shaft hole 22, the inner side of the supporting leg 11 is provided with a rotating shaft 13, and the backrest frame 2 can be rotatably connected with the supporting leg 11 through the connection of the rotating shaft 13 and the rotating shaft holes 22.

In addition, in order to fix the backrest frame 2 in the backrest position or the lying position and enable a user to obtain a relatively stable use experience, the backrest frame 2 and the support legs 11 are also connected in a positioning manner through positioning pieces; the positioning element fixes the backrest frame 2 in the backrest position or the lying position.

In this embodiment, the positioning member includes a positioning pin provided on the back frame 2 and a positioning pin hole 15 provided on the support leg 11; the number of the positioning pin holes 15 is two, magnets are fixed in the positioning pin holes, and when the positioning pin 23 rotates to a position corresponding to one of the positioning pin holes 15, the positioning pin 23 is in limit connection with the positioning pin hole 15 along the rotation direction. Specifically, the positioning pin 23 and the positioning pin hole 15 are connected by means of magnetic attraction. In addition, in order to realize the positioning fit between the positioning pin 23 and the positioning pin hole 15, a relief hole 25 for exposing the positioning pin hole 15 needs to be further formed on the backrest frame 2.

Then, when the user rotates the backrest frame 2, the positioning relationship between the positioning pin 23 and the positioning pin hole 15 needs to be released, so the present embodiment further includes an operating member for releasing the limit connection between the positioning pin 23 and the positioning pin hole 15, and the operating member is linked with the positioning pin 23 through the cable 25; when the cable is pulled, the positioning pin 23 moves away from the positioning pin hole 15. In this embodiment, the operation member is a pull tab 24 provided on the backrest, and the user pulls the pull tab to release the positioning relationship between the positioning pin 23 and the positioning pin hole 15, which is very quick.

The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.