A combination sofa

Abstract

This invention discloses a modular sofa, comprising a first module, two telescopic strips, a second module, and a third module. The second module is also fixedly connected to the second ends of the two telescopic strips and has two states: a first state where it is flush with the first module, or a separated state where it is separated from the first module. The third module's third backrest has two states: a first state where it is folded flat relative to the seat cushion, or a second state where it is tilted relative to the seat cushion. When the second module is in the first state, the third module is also in the first state, positioned in front of the first module and limited by a first connecting piece within the first frame and a second connecting piece within the second frame. When the second module is in the second state, the third module is also in the second state, positioned between the first and second modules and limited by the telescopic strips and a fourth groove on the third frame. The beneficial effect is that both different configurations limit the movement of the three modules, allowing for more stable maintenance of the configuration during use.

Description

Technical Field

[0001] This invention relates to sofas, and more particularly to a modular sofa. Background Technology

[0002] Sofas are a very common type of furniture. When choosing a sofa, it's generally necessary to consider the specific dimensions of the living room. To adapt to different living environments and needs, many sofas are now designed as modular units, combining several modules to create various sofa configurations. However, existing modular sofas still have a problem: the modules are simply placed directly in their respective positions, lacking connection between them. This makes them less stable during use, and their positions are prone to shifting. Summary of the Invention

[0003] This application provides a modular sofa that can solve the problems mentioned in the background art.

[0004] This application provides a modular sofa, including...

[0005] The first module has a handrail on the first side, but no handrail on the opposite second side.

[0006] Two telescopic bars are installed in the first frame of the first module, and the second end can extend out from the second side of the first module;

[0007] The second module has a handrail on its second side and no handrail on its opposite first side, and is fixedly connected to the second ends of the two telescopic strips; it has either a first state that is in contact with the first module or a separated state that is separated from the first module.

[0008] The third module has no armrests on either side, and the third backrest can be adjusted in angle and position. The third backrest has a first state where it is laid flat relative to the seat cushion or a second state where it is tilted relative to the seat cushion. When the second module is in the first state, the third module is also in the first state and is located in front of the first module to form a chaise lounge position. When the second module is in the second state, the third module is also in the second state and is located between the first module and the second module to increase the length.

[0009] Furthermore, the first module has a plurality of first slots on the front side of the first frame, and a movable first connecting piece is provided in the first frame for each first slot; the third module has a plurality of second slots on the front side of the third frame, and a movable second connecting piece is provided in the third frame for each second slot, which works in conjunction with the first connecting piece to fix the third frame.

[0010] Furthermore, all first connecting pieces are synchronously controlled by the telescopic strip on the front side, and all second connecting pieces are synchronously controlled by the third backrest of the third module.

[0011] Furthermore, the telescopic strip with all the first connecting pieces moves within the first frame; the third backrest with all the second connecting pieces extends and retracts from the second slot.

[0012] Furthermore, an elastic element is provided between the first frame of the first module and each first connecting piece. The elastic element ensures that the first connecting piece is in a first limit position that does not interfere with the second connecting piece extending from the second slot entering the first slot. The forward telescopic strip is also fixed with a stop portion corresponding to each first connecting piece, which enables it to overcome the movement of the elastic element and engage with the second connecting piece.

[0013] Furthermore, a connecting rod is provided between the third backrest and each of the second connecting pieces.

[0014] In summary, this application discloses a modular sofa comprising a first module, two telescopic strips, a second module, and a third module. The second module is also fixedly connected to the second ends of the two telescopic strips and has either a first state of being flush with the first module or a separated state of being separated from the first module. The third module's third backrest has either a first state of being flush with the seat cushion or a second state of being tilted relative to the seat cushion. When the second module is in the first state, the third module is also in the first state, positioned in front of the first module and limited by a first connecting piece within the first frame and a second connecting piece within the second frame. When the second module is in the second state, the third module is also in the second state, positioned between the first and second modules and limited by the telescopic strips and a fourth groove on the third frame. The beneficial effect is that both different configurations limit the movement of the three modules, allowing for more stable maintenance of the configuration during use. Attached Figure Description

[0015] To better illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0016] Figure 1 This is a top view of the second and third modules in their first state.

[0017] Figure 2 This is a top view when the second and third modules are in their second state.

[0018] Figure 3 A schematic diagram of the first, second, and third frames after the top has been removed;

[0019] Figure 4 for Figure 3 An enlarged schematic diagram of part A in the middle;

[0020] Figure 5 for Figure 3 Enlarged schematic diagram of part B;

[0021] Figure 6 for Figure 3 The first, second, and third frames correspond to Figure 2 A schematic diagram of the state in the middle;

[0022] Figure 7 for Figure 6 An enlarged schematic diagram of section C.

[0023] In the picture,

[0024] 1. First module; 1a. First armrest; 1b. First backrest; 1c. First frame; 1c1. First groove; 1c2. First connecting piece; 1c3. Elastic element;

[0025] 2. Telescopic strip; 2a. Abutment part;

[0026] 3. Second module; 3a. Second armrest; 3b. Second backrest; 3c. Second frame;

[0027] 4. Third module; 4a. Third backrest; 4a1. Backrest connector; 4a2. Gas spring; 4b. Third frame; 4b1. Second slot; 4b2. Second connecting piece; 4b3. Fourth slot; 4b4. Connecting rod. Detailed Implementation

[0028] The following description, in conjunction with the accompanying drawings, provides further details. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0029] Please see Figure 1 and Figure 2 A modular sofa includes a first module 1, two telescopic strips 2, a second module 3, and a third module 4.

[0030] The first module 1 has an armrest on its first side (marked as first armrest 1a), while the opposite second side does not have an armrest. Naturally, as a sofa, the first module 1 also has a backrest (marked as first backrest 1b). That is, the first module 1 is constructed with reference to existing sofa construction, with a sponge layer covering the wooden first frame 1c, followed by an outer covering layer, and armrests and a backrest installed at the corresponding positions on the first frame 1c.

[0031] Two telescopic bars 2 are installed in the first frame 1c of the first module 1, and the second end can extend from the second side of the first module 1. Specifically, a ball bearing slide rail can be used as the telescopic bar 2, and a third groove for the telescopic bar 2 to extend is provided on the side plate of the second side of the first frame 1c.

[0032] The second module 3 has an armrest on its second side (labeled as second armrest 3a), while the opposite first side does not have an armrest. Naturally, as a sofa, the second module 3 also has a backrest (labeled as second backrest 3b). That is, the second module 3 is constructed according to existing sofa construction methods, with a sponge layer covering the wooden second frame 3c, followed by an outer covering layer, and armrests and a backrest installed in the corresponding positions on the second frame 3c.

[0033] The second module 3 is also fixedly connected to the second end of the two telescopic strips 2, and has: a first state that is attached to the first module 1 or a separated state that is separated from the first module 1.

[0034] The third module 4 has no armrests on either side, and the third backrest 4a can be adjusted in angle and position. Specifically, the third backrest 4a is not directly set on the third frame 4b of the third module 4, but is connected to the third frame 4b via a backrest connector 4a1. A gas spring 4a2 is also provided, with one end of the gas spring 4a2 hinged to the third frame 4b and the other end hinged to the backrest connector 4a1. The extension and retraction of the gas spring 4a2 causes the backrest connector 4a1 to swing.

[0035] The third backrest 4a has two states: a first state where it is laid flat relative to the seat cushion, and a second state where it is tilted relative to the seat cushion. Specifically, after the gas spring 4a2 is opened, it extends, causing the third backrest 4a to move towards the second state. Once the third backrest 4a reaches the second state, the gas spring 4a2 is closed and locked, and the third backrest 4a remains in the second state. Alternatively, after the gas spring 4a2 is opened, the pressure can be manually overcome to swing the third backrest 4a to the first state, and then the gas spring 4a2 is closed and locked, maintaining the third backrest 4a in the first state.

[0036] When the second module 3 is in the first state, the third module 4 is also in the first state and is set in front of the first module 1 to form a concubine position.

[0037] When the second module 3 is in the second state, the third module 4 is also in the second state, positioned between the first module 1 and the second module 3, increasing its length. That is, at the bottom of the third frame 4b of the third module 4, a fourth slot 4b3 is provided at the position corresponding to the two telescopic rods for the telescopic rods to enter.

[0038] Please see Figure 3 , Figure 5 , Figure 6 and Figure 7 Optionally, the front of the first frame 1c of the first module 1 is provided with multiple first slots 1c1, and a movable first connecting piece 1c2 is provided in each first slot 1c1 within the first frame 1c. All first connecting pieces 1c2 are synchronously controlled by the telescopic strip 2 on the front. The front of the third frame 4b of the third module 4 is provided with multiple second slots 4b1, and a movable second connecting piece 4b2 is provided in each second slot 4b1 within the third frame 4b. This second connecting piece 4b2 is used to fix the third frame 4b in conjunction with the first connecting piece 1c2. All second connecting pieces 4b2 are synchronously controlled by the third backrest 4a of the third module 4.

[0039] The first connecting piece 1c2 and the second connecting piece 4b2 fix the third frame 4b in the following way: one of the first connecting piece 1c2 and the second connecting piece 4b2 can extend out from the corresponding frame, while the other can move within the corresponding frame; the extended one can enter the frame of the other, and the other, through movement, can make the matching protrusions and notches on the first connecting piece 1c2 and the second connecting piece 4b2 engage.

[0040] Furthermore, the telescopic bar 2, with all the first connecting pieces 1c2, moves within the first frame 1c, while the third backrest 4a, with all the second connecting pieces 4b2, extends and retracts from the second slot 4b1. This is more reasonable and facilitates the subsequent linkage between the telescopic bar 2 and the first connecting pieces 1c2, as well as between the third backrest 4a and the second connecting pieces 4b2.

[0041] Please see Figure 5An elastic element 1c3 is provided between the first frame 1c of the first module 1 and each first connecting piece 1c2. The elastic element 1c3 keeps the first connecting piece 1c2 in a first limiting position. When in the first limiting position, the first connecting element does not interfere with the second connecting piece 4b2 extending from the second slot 4b1 into the first slot 1c1. Specifically, the elastic element 1c3 can be a torsion spring, and the first connecting piece 1c2 is hinged to the first frame 1c. The forward telescopic bar 2 is also fixed with a stop portion 2a corresponding to each first connecting piece 1c2, which can overcome the movement of the elastic element 1c3 and engage with the second connecting piece 4b2. That is, the top of the stop portion 2a is used to contact the second connecting piece 4b2, and can be in the shape of a crest. During the back-and-forth sliding of the telescopic bar 2, the stop portion 2a can pass under the first connecting piece 1c2. When the second module 3 is in the first state, the crest of the abutting part 2a abuts against the first connecting piece 1c2, overcoming the torsion spring and causing the first connecting piece 1c2 to swing to the second limit position where it engages with the second connecting piece 4b2. When the second module 3 is in the second state, the abutting part 2a and the first connecting piece 1c2 are misaligned, and the first connecting piece 1c2 returns to the first limit position.

[0042] Please see Figure 4 and Figure 7 A connecting rod 4b4 is provided between the third backrest 4a and each of the second connecting pieces 4b2. That is, through the connecting rod 4b4, the swing of the third backrest 4a causes the second connecting piece 4b2 to slide horizontally.

Claims

1. A modular sofa, characterized in that, Comprising The first module (1) has a handrail on the first side and no handrail on the opposite second side; the front side of the first frame (1c) is provided with a plurality of first slots (1c1), and the first frame (1c) is provided with a movable first connecting piece (1c2) corresponding to each first slot (1c1); Two telescopic bars (2) are arranged in the first frame (1c) of the first module (1), and the second end can be extended from the second side of the first module (1); all the first connecting pieces (1c2) are synchronously controlled by the telescopic bars (2) in front; The second module (3) has a handrail on the second side and no handrail on the opposite first side, and is fixedly connected to the second ends of the two telescopic bars (2); it has a first state of being attached to the first module (1) or a separation state of being separated from the first module (1); The third module (4) has no handrail on both sides; the front side of the third frame (4b) is provided with a plurality of second slots (4b1) corresponding to each second slot (4b1), and the third frame (4b) is provided with a movable second connecting piece (4b2) corresponding to each second slot (4b1) and cooperating with the first connecting piece (1c2) to fix the third frame (4b); the third backrest (4a) can adjust the angle position, and has a first state of being flat relative to the cushion or a second state of being inclined relative to the cushion; all the second connecting pieces (4b2) are synchronously controlled by the third backrest (4a); When the second module (3) is in the first state, the third module (4) is also in the first state and is arranged in the front of the first module (1) to form a concubine position; when the second module (3) is in the second state, the third module (4) is also in the second state and is arranged between the first module (1) and the second module (3) to increase the length.

2. A combination sofa as defined in claim 1, wherein The telescopic bars (2) have all the first connecting pieces (1c2) moving in the first frame (1c); the third backrest (4a) has all the second connecting pieces (4b2) telescoping from the second slots (4b1).

3. A combination sofa as defined in claim 2, wherein, The first frame (1c) of the first module (1) and each first connecting piece (1c2) are provided with an elastic member (1c3), which makes the first connecting piece (1c2) not interfere with the second connecting piece (4b2) extending from the second slot (4b1) into the first slot (1c1); the front telescopic bar (2) is further provided with a resisting part (2a) corresponding to each first connecting piece (1c2), which can make it overcome the elastic member (1c3) to cooperate with the second connecting piece (4b2).

4. A combination sofa as defined in claim 2, wherein, The third backrest (4a) and each second connecting piece (4b2) are provided with a connecting rod (4b4).

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