Swing device for sofa and sofa

Abstract

The utility model relates to the technical field of functional furniture, and particularly discloses a swinging device for a sofa and the sofa, and the swinging device for the sofa comprises a base, a driving part, a sliding part, a connecting piece and a stretching part. When the driving part drives the sliding part to move forwards, the sliding part drives the stretching part to swing through the connecting part, and when the sliding part moves to a first preset position, the driving part is closed, and when the stretching part and the sofa seat body enable the sliding part to move backwards to a second preset position under the action of gravity, the speed of the sliding part is 0; at the moment, the driving part can be started, the driving part is utilized to drive the sliding part to move forwards to the first preset position, and the process is repeated, so that the swinging function of the swinging device for the sofa can be smoothly realized, and the comfort of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of functional furniture, in particular to a swing device for a sofa and a sofa. Background Art

[0002] Currently, the functional frames with swing functions in sofas are usually manually swung and electrically swung. Among them, the manually swung functional frames can only be swung manually, which consumes physical strength. The electrically swung method is to drive the active part by a motor to make the active part perform circular motion. The active part drives the driven part to perform reciprocating swing motion through a connecting rod, and the driven part is connected to the functional iron frame, thereby driving the functional iron frame to swing. However, in the prior art, the smoothness of the electrically swung method during the swinging process is too rigid and the comfort is poor. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a swing device for a sofa and a sofa to solve the problem of poor comfort in the prior art of the electrically swung method.

[0004] On the one hand, the utility model provides a swing device for a sofa, which includes: a base; a driving part arranged on the base; a sliding part including a sliding seat and a sliding member, the sliding seat is arranged on the base, the sliding member is arranged on the sliding seat and is slidably matched with the sliding seat, and the driving part is drivingly connected to the sliding member to drive the sliding member to move; a connecting member, one end of the connecting member is rotatably connected to the sliding member; an extension part arranged on the base, the extension part is rotatably connected to the other end of the connecting member, the sliding part can drive the extension part to swing, and the extension part can be connected to the sofa seat body.

[0005] As a preferred technical solution of the swing device for a sofa, the driving part includes a driving motor and a transmission structure, the driving motor is arranged on the base, and the driving motor is connected to the sliding member through the transmission structure.

[0006] As a preferred technical solution of the swing device for a sofa, the transmission structure includes a transmission gear and a transmission rack, the transmission gear is connected to the output shaft of the driving motor, the transmission rack is connected to the sliding member, and the transmission gear meshes with the transmission rack.

[0007] As a preferred technical solution of the swing device for a sofa, the sliding seat includes a first seat body, a second seat body and a guide rod, the first seat body and the second seat body are arranged on the base at intervals, both ends of the guide rod are respectively connected to the first seat body and the second seat body, the sliding member is sleeved on the guide rod and is slidably matched with the guide rod.

[0008] As a preferred technical solution for the rocking device of a sofa, the first seat body includes a first plate body, a second plate body, and a reinforcing plate. The first plate body and the second plate body are vertically connected. The first plate body is connected to the base, the second plate body is connected to one end of the guide rod, one side of the reinforcing plate is connected to the first plate body, and the other side of the reinforcing plate is connected to the second plate body.

[0009] As a preferred technical solution for the rocking device of a sofa, the connecting member includes a first connecting plate and a second connecting plate. One end of the first connecting plate and one end of the second connecting plate are respectively hinged to both sides of the sliding member, and the other end of the first connecting plate and the other end of the second connecting plate are both hinged to the extension part.

[0010] As a preferred technical solution for the rocking device of a sofa, the extension part includes an extension bracket, an extension guide rod, and a swinging member. The extension bracket is arranged on the base. The extension guide rod is hinged to the other end of the connecting member and is connected to the swinging member. The swinging member is hinged to the extension bracket, and the swinging member can be connected to the sofa seat body.

[0011] As a preferred technical solution for the rocking device of a sofa, the swinging member includes a driving swinging rod, a connecting rod, a driven swinging rod, and a support rod group. The driving swinging rod has a first connection end, a second connection end, and a third connection end. The extension guide rod is connected to the first connection end. The second connection end is hinged to one end of the extension bracket. The third connection end is hinged to one end of the connecting rod. One end of the driven swinging rod is hinged to the other end of the extension bracket. The other end of the connecting rod is hinged to one end of the driven swinging rod. The support rod group is hinged to the connecting rod, and the support rod group can be connected to the sofa seat body.

[0012] As a preferred technical solution for the rocking device of a sofa, the rocking device for a sofa further includes a controller and a distance sensor. The controller is installed on the base, and the distance sensor is installed on the sliding seat and can detect the moving distance of the sliding member. The driving part and the distance sensor are both electrically connected to the controller. The controller controls the driving part to work by receiving the information of the moving distance of the sliding member detected by the distance sensor.

[0013] On the other hand, the present utility model provides a sofa, which includes a sofa seat body and the rocking device for a sofa in any of the above solutions. The sofa seat body is installed on the rocking device for a sofa.

[0014] The beneficial effects of the present utility model are:

[0015] The present utility model provides a rocking device for a sofa. The rocking device for the sofa includes a base, a driving part, a sliding part, a connecting part and an extending part. Among them, the sliding part includes a sliding seat and a sliding member. By using the rocking device for the sofa provided by the present utility model, when rocking is needed, the driving part can be used to drive the sliding member so that the sliding member can move linearly along a preset track on the sliding seat. Since one end of the connecting part is rotatably connected to the sliding member and the extending part is rotatably connected to the other end of the connecting part, the sliding member can drive the extending part to swing through the connecting part, thereby achieving the purpose of driving the sofa seat body to swing; when the driving part drives the sliding member to move forward (as Figure 2 shown), the sliding member drives the extending part to swing through the connecting part. When the sliding member moves to the first preset position, the driving part is closed at this time. Due to the action of gravity, the extending part and the sofa seat body cause the sliding member to move backward until the second preset position, and the speed of the sliding member is 0 at this time. Then the driving part can be turned on again, and the driving part is used to drive the sliding member to move forward to the first preset position. In this way, by repeating the cycle, the rocking function of the rocking device for the sofa can be smoothly realized, and the comfort of the user is improved. By using the rocking device for the sofa of the present utility model, the problem that the comfort of the electric rocking method in the prior art is poor is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the rocking device for the sofa in an embodiment of the present utility model;

[0017] Figure 2 is a schematic diagram of a part of the structure of the rocking device for the sofa in an embodiment of the present utility model at a first angle;

[0018] Figure 3 is a schematic diagram of a part of the structure of the rocking device for the sofa in an embodiment of the present utility model at a second angle;

[0019] Figure 4 is a schematic diagram of a part of the structure of the rocking device for the sofa in an embodiment of the present utility model at a third angle;

[0020] Figure 5 is a schematic diagram of a part of the structure of the rocking device for the sofa in an embodiment of the present utility model at a fourth angle;

[0021] Figure 6 is a schematic diagram of a part of the structure of the rocking device for the sofa in an embodiment of the present utility model.

[0022] In the figure:

[0023] 1. Base;

[0024] 2. Driving part; 21. Driving motor; 22. Transmission structure; 221. Transmission gear; 222. Transmission rack;

[0025] 3. Sliding part; 31. Sliding seat; 311. First seat body; 3111. First plate body; 3112. Second plate body; 3113. Reinforcing plate; 312. Second seat body; 313. Guide rod; 32. Sliding member;

[0026] 4. Connecting part; 41. First connecting plate; 42. Second connecting plate;

[0027] 5. Extension part; 51. Extension bracket; 52. Extension guide rod; 53. Swing member; 531. Active swing rod; 532. Connecting rod; 533. Driven swing rod; 534. Support rod group;

[0028] 61. Controller; 62. Distance sensor. Detailed implementation manner

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0033] As Figures 1 to 6 shown, this embodiment provides a rocking device for a sofa. The rocking device for the sofa includes a base 1, a driving part 2, a sliding part 3, a connecting part 4, and an extending part 5. Among them, the sliding part 3 includes a sliding seat 31 and a sliding member 32. The sliding seat 31 is arranged on the base 1, the sliding member 32 is arranged on the sliding seat 31 and is in sliding cooperation with the sliding seat 31, and the driving part 2 and the sliding member 32 are drivingly connected. And one end of the connecting part 4 is rotatably connected to the sliding member 32; the extending part 5 is arranged on the base 1, and the extending part 5 and the other end of the connecting part 4 are rotatably connected.

[0034] When the rocking device for the sofa provided by the present utility model is adopted, when rocking is needed, the driving part 2 can be used to drive the sliding member 32, so that the sliding member 32 can perform a linear movement along a preset track on the sliding seat 31 from the initial position. Since one end of the connecting part 4 is rotatably connected to the sliding member 32, and the extending part 5 and the other end of the connecting part 4 are rotatably connected, in this way, the sliding member 32 can drive the extending part 5 to swing through the connecting part 4, so as to achieve the purpose of driving the sofa seat to swing; the movement process is as follows: when the driving part 2 drives the sliding member 32 to move forward (as Figure 2 shown), the sliding member 43 drives the extending part 5 to swing through the connecting part 4. When the sliding member 32 moves to the first preset position, at this time, the driving part 2 is turned off. Due to the action of gravity, the extending part 5 and the sofa seat cause the sliding member 32 to move backward until it reaches the second preset position, and the speed of the sliding member 32 is 0. At this time, the driving part 2 can be turned on again, and the driving part 2 is used to drive the sliding member 32 to move forward to the first preset position. In this way, by repeating the cycle, the rocking function of the rocking device for the sofa can be smoothly realized, and the comfort of the user is improved. By using the rocking device for the sofa of the present utility model, the problem that the comfort of the electric rocking method in the prior art is relatively poor is effectively solved. Among them, the sliding member 32 is a sliding block.

[0035] In this embodiment, the driving part 2 includes a driving motor 21 and a transmission structure 22. The driving motor 21 is arranged on the base 1, which ensures the stability of the driving motor 21 during operation. At the same time, the driving motor 21 is connected to the sliding member 32 through the transmission structure 22. The transmission structure 22 is provided to facilitate the connection with the sliding member 32 to achieve the purpose of driving the sliding member 32 to move.

[0036] Further, as Figure 2 , Figure 4 and Figure 6 shown, the transmission structure 22 includes a transmission gear 221 and a transmission rack 222. In this solution, the transmission gear 221 is connected to the output shaft of the driving motor 21, the transmission rack 222 is connected to the sliding member 32, and the transmission gear 221 meshes with the transmission rack 222. With this setting, the driving motor 21 can drive the transmission gear 221 to rotate. Since the transmission gear 221 meshes with the transmission rack 222, the transmission gear 221 can drive the transmission rack 222 to move linearly, thereby driving the sliding member 32 to move linearly.

[0037] Optionally, the transmission structure 22 includes but is not limited to a cam mechanism, a crank-slider mechanism, etc. Among them, when using a cam structure, the sliding member 32 can be pushed to achieve a predetermined linear reciprocating motion through the rotational motion of the cam. Similarly, when using a crank-slider mechanism, the sliding member 32 can be driven to move linearly along the guide rail through the rotational motion of the crank.

[0038] In this solution, as Figure 1 and Figure 4 shown, the sliding seat 31 includes a first seat body 311, a second seat body 312, and a guide rod 313. Among them, the first seat body 311 and the second seat body 312 are arranged at intervals on the base 1, and both ends of the guide rod 313 are respectively connected to the first seat body 311 and the second seat body 312. In this way, the sliding member 32 can be sleeved on the guide rod 313 and slidably cooperate with the guide rod 313, so that the sliding member 32 can reciprocate along the guide rod 313.

[0039] Further, the first seat body 311 includes a first plate body 3111, a second plate body 3112, and a reinforcing plate 3113. The first plate body 3111 and the second plate body 3112 are perpendicularly connected. The first plate body 3111 is connected to the base 1, and the second plate body 3112 is connected to one end of the guide rod 313. With this setting, it is convenient for the installation of the guide rod 313. At the same time, in order to strengthen the connection strength between the first plate body 3111 and the second plate body 3112, one side of the reinforcing plate 3113 is connected to the first plate body 3111, and the other side of the reinforcing plate 3113 is connected to the second plate body 3112. With this setting, the structural strength of the first sliding seat 31 is further improved.

[0040] Similarly, the structure of the second seat body 312 is the same as that of the first seat body 311.

[0041] As Figure 2 shown, the connecting member 4 includes a first connecting plate 41 and a second connecting plate 42. In this solution, one end of the first connecting plate 41 and one end of the second connecting plate 42 are respectively hinged to both sides of the sliding member 32, and the other end of the first connecting plate 41 and the other end of the second connecting plate 42 are both hinged to the extension part 5. With this setting, when the sliding member 32 moves, the first connecting plate 41 and the second connecting plate 42 can drive the extension part 5 to swing.

[0042] In this embodiment, the extension part 5 includes an extension bracket 51, an extension guide rod 52, and a swinging member 53. Among them, the extension bracket 51 is arranged on the base 1, the extension guide rod 52 is hinged to the other end of the connecting member 4 and is connected to the swinging member 53, and the swinging member 53 is hinged to the extension bracket 51, and the swinging member 53 can be connected to the sofa seat body. With this setting, the swinging member 53 can rotate around the extension bracket 51, and the extension guide rod 52 can connect the connecting member 4 and the swinging member 53.

[0043] Among them, as Figure 2 and Figure 5 shown, the swinging member 53 includes a driving swinging rod 531, a connecting rod 532, a driven swinging rod 533, and a support rod group 534. The driving swinging rod 531 has a first connection end, a second connection end, and a third connection end. The extension guide rod 52 is connected to the first connection end, so that the extension guide rod 52 can drive the driving swinging rod 531 to swing; at the same time, the second connection end is hinged to one end of the extension bracket 51, and the third connection end is hinged to one end of the connecting rod 532, so that the driving swinging rod 531 can swing around the extension bracket 51; and one end of the driven swinging rod 533 is hinged to the other end of the extension bracket 51, and the other end of the connecting rod 532 is hinged to one end of the driven swinging rod 533, and the connecting rod 532 can be used to drive the driven swinging rod 533 to swing. In addition, the support rod group 534 is hinged to the connecting rod 532, so that the support rod group 534 can be connected to the sofa seat body to drive the sofa seat body to swing.

[0044] Optionally, the support rod group 534 is a multi-link structure, and the driving swinging rod 531 and the driven swinging rod 533 can drive the support rod group 534 to swing.

[0045] Specifically, the rocking device for a sofa further includes a controller 61 and a distance sensor 62. The controller 61 is mounted on the base 1, and the distance sensor 62 is mounted on the first base 311 or the second base 312. The driver 2 and the distance sensor 62 are both electrically connected to the controller 61. With this arrangement, the controller 61 controls the operation of the driver 2 by receiving information about the movement distance of the slider 32 detected by the distance sensor 62. When the slider 32 moves forward to a first preset position set by the distance sensor 62, the distance sensor 62 transmits a distance signal to the controller 61, which in turn controls the driver 2 to turn off. When the slider 32 moves backward to a second preset position set by the distance sensor 62, the distance sensor 62 transmits a distance signal to the controller 61, which in turn controls the driver 2 to turn on.

[0046] It should be noted that when swinging is required, the drive motor 21 is driven counterclockwise, the transmission gear 221 and the transmission rack 222 are engaged, the transmission gear 221 drives the transmission rack 222, and the transmission rack 222 is fixedly matched with the sliding member 32, thereby driving the sliding member 32 to move forward (such as Figure 2 As shown in FIG, the connecting member 4 connected to the sliding member 32 is hinged to the extension guide rod 52, which causes the extension guide rod 52 to swing. At this time, the driving motor 21 cannot move continuously. Since the swinging motion of the extension part 5 is converted into linear motion, the swing amplitude of the extension part 5 can be converted into a measurable linear change value. Therefore, the distance sensor 62 is used to detect the change value, position and speed of the movement of the sliding member 32. When the driving motor 21 is running and drives the sliding member 32 to a certain position, the distance sensor 62 detects the corresponding position and transmits a signal to the controller 61, which controls The controller 61 controls the drive motor 21 to cut off the power. When the speed of the extension guide rod 52 swinging forward is equal to 0, the extension guide rod 52 moves backward due to the action of gravity, and the drive motor 21 is not powered at this time; when the extension guide rod 52 swings backward to a certain distance, the speed is 0 and it moves forward. At this time, after the distance sensor 62 detects a specific distance, it transmits a signal to the controller 61 to power on the drive motor 21. The drive motor 21 moves counterclockwise, driving the sliding member 32 to move, and repeats this step to swing back and forth to realize the swinging function; when the power is off, the extension guide rod 52 can still swing back and forth freely.

[0047] This embodiment further provides a sofa, which includes a sofa seat body and the above-mentioned rocking device for the sofa, and the sofa seat body is installed on the rocking device for the sofa. By using the sofa provided by the present utility model, when it is necessary to swing, the driving part 2 can be used to drive the sliding part 32, so that the sliding part 32 can move linearly along a preset track on the sliding seat 31. Since one end of the connecting part 4 is rotatably connected to the sliding part 32, and the extending part 5 is rotatably connected to the other end of the connecting part 4, the sliding part 32 can drive the extending part 5 to swing through the connecting part 4, thereby achieving the purpose of driving the sofa seat body to swing; the movement process is as follows: when the driving part 2 drives the sliding part 32 to move forward (as Figure 2 shown), the sliding part 43 drives the extending part 5 to swing through the connecting part 4. When the sliding part 32 moves to the first preset position, the driving part 2 is turned off at this time. Due to the action of gravity, the extending part 5 and the sofa seat body cause the sliding part 32 to move backward until it reaches the second preset position, and the speed of the sliding part 32 is 0 at this time. Then the driving part 2 can be turned on again, and the driving part 2 is used to drive the sliding part 32 to move forward to the first preset position. By repeating this cycle, the rocking function of the rocking device for the sofa can be smoothly realized, and the comfort of the user is improved. By using the sofa of the present utility model, the problem of poor comfort in the prior art of electric rocking is effectively solved.

[0048] Obviously, the above-mentioned embodiments of the present utility model are only examples for clearly explaining the present utility model, and are not intended to limit the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A rocking device for a sofa, characterized in that, Comprising: Base (1); Drive part (2), arranged on the base (1); Sliding part (3), including a sliding seat (31) and a sliding member (32), the sliding seat (31) is arranged on the base (1), the sliding member (32) is arranged on the sliding seat (31) and is in sliding fit with the sliding seat (31), the drive part (2) and the sliding member (32) are drivingly connected to drive the sliding member (32) to move; Connecting member (4), one end of the connecting member (4) is rotatably connected to the sliding member (32); Extension part (5), arranged on the base (1), the extension part (5) is rotatably connected to the other end of the connecting member (4), the sliding member (32) can drive the extension part (5) to swing, and the extension part (5) can be connected to the sofa seat body.

2. The rocking device for a sofa according to claim 1, characterized in that, The drive part (2) includes a drive motor (21) and a transmission structure (22), the drive motor (21) is arranged on the base (1), and the drive motor (21) is connected to the sliding member (32) through the transmission structure (22).

3. The rocking device for a sofa according to claim 2, characterized in that, The transmission structure (22) includes a transmission gear (221) and a transmission rack (222), the transmission gear (221) is connected to the output shaft of the drive motor (21), the transmission rack (222) is connected to the sliding member (32), and the transmission gear (221) and the transmission rack (222) are engaged.

4. The rocking device for a sofa according to claim 1, characterized in that, The sliding seat (31) includes a first seat body (311), a second seat body (312) and a guide rod (313), the first seat body (311) and the second seat body (312) are arranged on the base (1) at intervals, both ends of the guide rod (313) are respectively connected to the first seat body (311) and the second seat body (312), the sliding member (32) is sleeved on the guide rod (313) and is in sliding fit with the guide rod (313).

5. The rocking device for a sofa according to claim 4, characterized in that, The first seat body (311) includes a first plate body (3111), a second plate body (3112) and a reinforcing plate (3113), the first plate body (3111) and the second plate body (3112) are perpendicularly connected, the first plate body (3111) is connected to the base (1), the second plate body (3112) is connected to one end of the guide rod (313), one side of the reinforcing plate (3113) is connected to the first plate body (3111), and the other side of the reinforcing plate (3113) is connected to the second plate body (3112).

6. The rocking device for a sofa according to claim 1, characterized in that, The connecting member (4) includes a first connecting plate (41) and a second connecting plate (42), one end of the first connecting plate (41) and one end of the second connecting plate (42) are respectively hinged to both sides of the sliding member (32), and the other end of the first connecting plate (41) and the other end of the second connecting plate (42) are both hinged to the extension part (5).

7. The rocking device for a sofa according to claim 1, characterized in that, The stretching part (5) includes a stretching bracket (51), a stretching guide rod (52) and a swinging member (53). The stretching bracket (51) is arranged on the base (1). The stretching guide rod (52) is hinged to the other end of the connecting member (4) and is connected to the swinging member (53). The swinging member (53) is hinged to the stretching bracket (51), and the swinging member (53) can be connected to the sofa seat body.

8. The rocking device for a sofa according to claim 7, characterized in that, The swinging member (53) includes a driving swinging rod (531), a connecting rod (532), a driven swinging rod (533) and a support rod group (534). The driving swinging rod (531) has a first connection end, a second connection end and a third connection end. The stretching guide rod (52) is connected to the first connection end. The second connection end is hinged to one end of the stretching bracket (51). The third connection end is hinged to one end of the connecting rod (532). One end of the driven swinging rod (533) is hinged to the other end of the stretching bracket (51). The other end of the connecting rod (532) is hinged to one end of the driven swinging rod (533). The support rod group (534) is hinged to the connecting rod (532), and the support rod group (534) can be connected to the sofa seat body.

9. The rocking device for a sofa according to any one of claims 1-8, characterized in that, The rocking device for a sofa further includes a controller (61) and a distance sensor (62). The controller (61) is installed on the base (1). The distance sensor (62) is installed on the sliding seat (31) and can detect the moving distance of the sliding member (32). The driving part (2) and the distance sensor (62) are both electrically connected to the controller (61). The controller (61) controls the driving part (2) to work by receiving the information of the moving distance of the sliding member (32) detected by the distance sensor (62).

10. A sofa, characterized in that, It includes a sofa seat body and the rocking device for a sofa according to any one of claims 1-9, and the sofa seat body is installed on the rocking device for a sofa.

Images