Tandem sofa

By designing a limit slot structure that cooperates with the rotatable side armrests and the limit columns, the problem of body bending caused by the insufficient length of the double sofa is solved, and the user can maintain a straight posture on the sofa, thereby improving the user's rest comfort.

CN223415969UActive Publication Date: 2025-10-10ANHUI WILLSOON FURNITURE CO LTD
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Patent Information

Application Number
CN202422779919.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-10-10
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

The existing double sofas are limited in length, causing people to bend their bodies when lying down to rest, which is harmful to the health of the waist and cervical spine.

Method used

A double sofa is designed. By providing a rotatable side armrest and a limiting structure between the armrest and the sofa seat, the armrest can be switched between vertical and parallel states, thereby limiting the position of the armrest and the sofa seat and ensuring that the human body remains straight when lying down.

Benefits of technology

By switching the armrests between vertical and parallel positions, the human body can maintain an upright posture on the sofa, reducing pressure on the waist and cervical spine and improving rest comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a love seat which comprises a sofa seat, first bottom grooves are formed in the two sides of the top of the sofa seat, second bottom grooves are formed in the bottoms of the first bottom grooves, rotating shafts extending in the length direction of the sofa seat are rotationally connected into the first bottom grooves through rotating frames, side armrests are fixedly connected to the rotating shafts, and first limiting grooves are formed below the first bottom grooves. Limiting columns are connected to the side armrests in an inserted mode, when the side armrests are rotated to be perpendicular to the sofa seat, the side armrests and the first bottom grooves make contact with each other for limiting, one ends of the limiting columns can be inserted into the first limiting grooves so as to limit the connecting positions between the side armrests and the sofa seat in the horizontal direction, and when the side armrests are rotated to be parallel to the sofa seat, the limiting columns can be inserted into the first limiting grooves so as to limit the connecting positions between the side armrests and the sofa seat in the horizontal direction. The bottom end face of the side handrail makes contact with the bottom end face of the second bottom groove. According to the sofa, the side armrests are in a vertical or flattened state, so that the body of a person can be in a straight state when the person lies on the sofa seat, the rest of the person is facilitated, and the sofa is convenient to use.
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Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a double sofa. Background Art

[0002] A sofa is a type of upholstered furniture, a multi-seater chair with armrests. Sofas are categorized by size into single, double, and triple seats. A typical double sofa can seat three to four people, making it suitable for everyday home use.

[0003] Generally, the height of a normal person is longer than the length of a double sofa. When a person lies on the sofa to rest, due to its limited length, the person can only rest his head on the armrest on one side of the sofa and his feet on the armrest on the other side of the sofa, causing the person to bend in an arc shape as a whole. When a person maintains such a posture for a long time, it is very detrimental to the waist, spine and cervical spine, and seriously damages the person's health. Utility Model Content

[0004] The present invention aims to solve the problems in the prior art and provides a double sofa. The specific technical solution is as follows:

[0005] A double sofa includes a sofa seat, wherein both sides of the top of the sofa seat are provided with a first bottom groove, and the bottom of the first bottom groove is provided with a second bottom groove. A rotating shaft extending in the length direction of the sofa seat is rotatably connected in the first bottom groove through a rotating frame, and a side armrest is fixedly connected to the rotating shaft. A first limiting groove is provided below the first bottom groove, and a limiting column with an end adapted to the first limiting groove is inserted into the side armrest. When the side armrest is rotated to be perpendicular to the sofa seat, the side armrest and the first bottom groove contact and limit each other. One end of the limiting column can be inserted into the first limiting groove to limit the connection between the side armrest and the sofa seat in the horizontal direction. When the side armrest is rotated to be parallel to the sofa seat, the bottom end surface of the side armrest contacts the bottom end surface of the second bottom groove.

[0006] As an improvement of the above technical solution: a third bottom groove is provided below the second bottom groove, and a second limiting groove adapted to the limiting column is provided on the third bottom groove. When the side armrest is rotated to be parallel to the sofa seat, the other end of the limiting column can be inserted into the second limiting groove to limit the position between the side armrest and the sofa seat.

[0007] As an improvement of the above technical solution: the side armrest is provided with a limiting groove adapted to the limiting column, the two ends of the limiting groove respectively pass through the top and bottom of the side armrest, the limiting column passes through the limiting groove, and the top end of the limiting column extends to the top end of the side armrest, the bottom end of the limiting column extends to the bottom end of the side armrest, and an elastic material ring is provided between the limiting column and the limiting groove.

[0008] As an improvement to the above technical solution: cushions are provided on the inner sides of the two side armrests. When the side armrests are rotated to be parallel to the sofa seat, the top surface of the cushions is flush with the top surface of the sofa seat.

[0009] As an improvement to the above technical solution: a notch is provided on one side of the bottom of the side armrest close to the second bottom groove.

[0010] As an improvement to the above technical solution: the top back of the sofa seat has a backrest extending upward.

[0011] Beneficial effects of the utility model:

[0012] When the opposite side armrest is in a use state perpendicular to the sofa seat, the limiting column is moved so that one end of the limiting column is inserted into the first limiting groove, and the opposite side armrest and the sofa seat are limited and locked. When the opposite side armrest and the cushion are to be flattened, the limiting column is first pulled out of the first limiting groove, and then the opposite side armrest is flipped downward so that the side armrest is set parallel to the sofa seat, and the bottom end surface of the side armrest is in conflict with the bottom end surface of the second bottom groove, so that the opposite side armrest is limited on the sofa seat, so that the sofa seat is in a flattened state. By using the side armrest of the present application in a vertical or flattened state, a person can keep his body in a straight state when lying on the sofa seat, which is beneficial to the person's rest and convenient for the use of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the side armrest of the utility model in a flattened state;

[0014] Figure 2 This is a schematic structural diagram of the side armrest of the present invention in the unfolded state;

[0015] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0016] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0017] Figure numerals: 1, sofa seat; 100, first limiting groove; 101, first bottom groove; 102, second bottom groove; 103, third bottom groove; 104, second limiting groove; 105, notch; 2, side armrest; 20, limiting through groove; 200, rotating shaft; 201, rotating frame; 203, elastic material ring; 21, cushion; 3, backrest; 4, limiting column. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] Example

[0020] Please refer to Figures 1-4 , a double sofa comprises a sofa seat 1, and both sides of the top of the sofa seat 1 are provided with a first bottom groove 101, and the bottom of the first bottom groove 101 is provided with a second bottom groove 102, and the first bottom groove 101 is rotatably connected to a rotating shaft 200 extending in the length direction of the sofa seat 1 through a rotating frame 201, and a side armrest 2 is fixedly connected to the rotating shaft 200, and a first limiting groove 100 is provided below the first bottom groove 101, and a limiting column 4 with an end portion adapted to the first limiting groove 100 is inserted on the side armrest 2. When the side armrest 2 is rotated to be perpendicular to the sofa seat 1, the side armrest 2 and the first bottom groove 101 contact and limit each other, and one end of the limiting column 4 can be inserted into the first limiting groove 100 to limit the connection between the side armrest 2 and the sofa seat 1 in the horizontal direction. When the side armrest 2 is rotated to be parallel to the sofa seat 1, the bottom end surface of the side armrest 2 contacts the bottom end surface of the second bottom groove 102.

[0021] In an optional embodiment: a third bottom groove 103 is provided below the second bottom groove 102, and a second limiting groove 104 adapted to the limiting column 4 is provided on the third bottom groove 103. When the side armrest 2 is rotated to be parallel to the sofa seat 1, the other end of the limiting column 4 can be inserted into the second limiting groove 104 to limit the position between the side armrest 2 and the sofa seat 1. Specifically, the connection between the third bottom groove 103, the second bottom groove 102 and the first bottom groove 101 is trapezoidal as a whole.

[0022] In an optional embodiment: the side armrest 2 is provided with a limiting groove 20 adapted to the limiting column 4, and the two ends of the limiting groove 20 respectively pass through the top and bottom of the side armrest 2, the limiting column 4 passes through the limiting groove 20, and the top end of the limiting column 4 extends to the top end of the side armrest 2, and the bottom end of the limiting column 4 extends to the bottom end of the side armrest 2, and an elastic material ring 203 is provided between the limiting column 4 and the limiting groove 20, and the elastic material ring 203 prevents the limiting column 4 from easily slipping out of the limiting groove 20.

[0023] In an optional embodiment: a soft cushion 21 is provided on the inner side of each of the two side armrests 2. When the side armrests 2 are rotated to be parallel to the sofa seat 1, the top surface of the soft cushion 21 is flush with the top surface of the sofa seat 1. By flattening the side armrests 2, the soft cushion 21 can facilitate the user to lie down and rest on the top surface of the sofa seat 1 and the side armrests 2.

[0024] In an optional embodiment, a notch 105 is provided on one side of the bottom of the side armrest 2 close to the second bottom groove 102 , and the notch 105 can ensure normal rotation of the side armrest 2 .

[0025] In an optional embodiment, the top back of the sofa seat 1 has a backrest 3 extending upward, which facilitates the user to lean back.

[0026] Specifically, when the opposite side armrest 2 is in a use state perpendicular to the sofa seat 1, the limiting column 4 is moved so that one end of the limiting column 4 is inserted into the first limiting groove 100, and the opposite side armrest 2 and the sofa seat 1 are limited and locked. When the opposite side armrest 2 and the cushion 21 are to be flattened, the limiting column 4 is first pulled out of the first limiting groove 100, and then the opposite side armrest 2 is flipped downward so that the side armrest 2 is set parallel to the sofa seat 1, and the bottom end surface of the side armrest 2 is in conflict with the bottom end surface of the second bottom groove 102, so that the opposite side armrest 2 is limited on the sofa seat 1, so that the sofa seat 1 is in a flattened state. Therefore, by the side armrest 2 of this application being in a vertical or flattened state, a person can keep his body in a straight state when lying on the sofa seat 1, which is beneficial to the person's rest and convenient for the use of this application.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Double sofa, characterized by: The sofa seat (1) comprises a sofa seat (1), wherein first bottom grooves (101) are provided on both sides of the top of the sofa seat (1), a second bottom groove (102) is provided at the bottom of the first bottom groove (101), a rotating shaft (200) extending in the length direction of the sofa seat (1) is rotatably connected in the first bottom groove (101) via a rotating frame (201), a side armrest (2) is fixedly connected to the rotating shaft (200), a first limiting groove (100) is provided below the first bottom groove (101), and a limiting column (4) whose end portion is adapted to the first limiting groove (100) is plugged into the side armrest (2); When the side armrest (2) is rotated to be perpendicular to the sofa seat (1), the side armrest (2) and the first bottom groove (101) contact each other to limit the position, and one end of the limiting column (4) can be inserted into the first limiting groove (100) to limit the connection between the side armrest (2) and the sofa seat (1) in the horizontal direction. When the side armrest (2) is rotated to be parallel to the sofa seat (1), the bottom end surface of the side armrest (2) and the bottom end surface of the second bottom groove (102) contact each other.

2. The double sofa according to claim 1, characterized in that: A third bottom groove (103) is provided below the second bottom groove (102), and a second limiting groove (104) adapted to the limiting column (4) is provided on the third bottom groove (103). When the side armrest (2) is rotated to be parallel to the sofa seat (1), the other end of the limiting column (4) can be inserted into the second limiting groove (104) to limit the position between the side armrest (2) and the sofa seat (1).

3. The double sofa according to claim 2, characterized in that: The side armrest (2) is provided with a limiting groove (20) adapted to the limiting column (4), the two ends of the limiting groove (20) respectively pass through the top and bottom of the side armrest (2), the limiting column (4) passes through the limiting groove (20), and the top end of the limiting column (4) extends to the top end of the side armrest (2), and the bottom end of the limiting column (4) extends to the bottom end of the side armrest (2), and an elastic material ring (203) is provided between the limiting column (4) and the limiting groove (20).

4. The double sofa according to claim 3, characterized in that: The inner sides of the two side armrests (2) are both provided with soft pads (21); when the side armrests (2) are rotated to be parallel to the sofa seat (1), the top end surfaces of the soft pads (21) are flush with the top end surface of the sofa seat (1).

5. The double sofa according to claim 4, characterized in that: A notch (105) is provided on one side of the bottom of the side armrest (2) close to the second bottom groove (102).

6. The double sofa according to claim 5, characterized in that: The top back of the sofa seat (1) is provided with a backrest (3) extending upward.