CN116687159A

CN116687159A - Reciprocating sofa and framework thereof

Info

Publication number: CN116687159A
Application number: CN202310913866.0A
Authority: CN
Inventors: 沙剑波
Original assignee: Omega Smart Home Jiangsu Co ltd
Current assignee: Omega Smart Home Jiangsu Co ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2023-09-05

Abstract

The invention first provides a sofa frame unit movable between an upright position, a TV position and a lying position, comprising a linkage assembly; the backrest support assembly is connected with the connecting rod assembly through a backrest connecting rod, and the connecting rod assembly drives the backrest support assembly to incline backwards when the sofa framework unit is from an upright position to a TV position; the invention also provides a reciprocating sofa, which comprises a sofa framework unit and a driving heel unit. Through the linkage design of the leg connecting rod, the driving connecting rod and the backrest connecting rod, when the sofa is inclined, the footrest and the backrest can move relatively. And because the back support component and the leg component are in two sets of connection modes which are relatively independent, the leg component and the back support component can respectively move, so that when the sofa is in a TV position from an upright position, the back can be inclined backwards for a certain angle, and a user is in a relatively comfortable state.

Description

Reciprocating sofa and framework thereof

Technical Field

The invention relates to the technical field of sofas, in particular to a sofa capable of reciprocating movement and a framework thereof.

Background

The sofa is used as a main tool for work, rest and entertainment, can effectively relieve fatigue and relax mood, and is a necessity for daily life of people. With the progress of global science and technology and the improvement of consumer life quality, consumers have put higher demands on health and comfort, the requirements on sofa are not limited to being used as simple seats, and higher demands on sofa health, comfort and functionality are put forward.

The functional sofa meets the pursuit of consumers for comfort of the sofa. Compared with the traditional sofa, the functional sofa is designed according to human engineering, the built-in linear driver is used as a core power source, lifting, tilting and overturning of the sofa are controlled through the lifting and descending keys on the buttons, the most appropriate angles are provided for consumers, the head, the neck, the waist and the knees are in a completely relaxed state until the feet are in a completely relaxed state, the whole body of the consumers is supported, the blood circulation is promoted, and the sofa is beneficial to physical health. The realization of the functions of the functional sofa needs to depend on an internal linear driving system, and a single person functional sofa needs to be provided with at least two linear drivers and one set of linear driving system to provide power. The functional sofa fully embodies the comfort and health performance in daily life, and through years of development, the function of the functional sofa is continuously improved and enhanced, and the functional sofa is uniformly accepted by consumers.

Typically, a functional sofa will assume three tilt states: upright, TV, and lying. For example, U.S. patent publication No. US7997644B2 discloses a tiltable recliner with a powered actuator, specifically three reclined positions: (a) an upright position: in the upright position, the seat is generally horizontally disposed, the backrest is generally vertically disposed, and the footrest is generally vertically disposed and positioned below the seat; (b) TV position: in the TV position, the footrest is generally placed horizontally in front of the seat, the backrest and seat remaining in the same relationship as in the upright position; (c) a fully reclined position: in the fully reclined position, the angle between the back rest and the seat increases.

In a TV position, the seat and backrest remain upright, and the upper and lower body of the user are in a relatively right angle position, which is not a comfortable condition. Particularly, for a user of relatively fat body type, since the seat and the backrest are in the vertical position, the abdomen thereof is pressed, greatly affecting the comfort of the user.

In view of the foregoing, there is a need to design a new sofa that is most comfortable for the user when in an upright position, a TV position, and a lying position.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a reciprocating sofa.

In order to achieve the above and other objects, the present invention is achieved by the following technical solutions: firstly, a sofa framework unit is provided, which can move among an upright position, a TV position and a lying position and is characterized by comprising a connecting rod assembly, wherein the connecting rod assembly is arranged on a base assembly through a seat plate fixing piece and comprises a leg connecting rod, a driving connecting rod, a backrest connecting rod, an upper swinging connecting rod and a lower swinging connecting rod, and the leg connecting rod and the backrest connecting rod are respectively arranged at two ends of the driving connecting rod; the lower end of the lower swing connecting rod is fixedly arranged at the rear end of the driving connection, and the upper end of the lower swing connecting rod is rotationally connected with the lower end of the upper swing connecting rod;

the front end of the backrest support assembly is provided with a first fixing hole, the rear end of the backrest support assembly is provided with a second fixing hole, the first fixing hole is fixedly connected with the backrest connecting rod, and the second fixing hole is fixedly connected with the upper end of the upper swing connecting rod;

when the sofa framework is from an upright position to a TV position, the leg connecting rods drive the driving connecting rods to displace forwards, drive the upper ends of the backrest connecting rods 7 to push upwards, the positions of the second fixing holes are fixed, the first fixing holes displace upwards, and push the front ends of the backrest supporting components to push upwards, so that the backrest supporting components are integrally inclined backwards by a certain angle.

In an embodiment, the upper swing link and the lower swing link drive the back support assembly to tilt rearward when the sofa frame unit is moved from a TV position to a lying position.

In an embodiment, a limit groove is formed at the rear end of the seat board fixing piece.

The invention also provides a sofa capable of reciprocating movement, which comprises a seat, a backrest, a footstool and armrests, wherein the seat is horizontally arranged, the backrest is installed on the seat, the footstool is arranged below the seat, and the armrests are installed on two sides of the seat;

when in an upright position, the seat is horizontally arranged, the backrest is vertically arranged on the seat, and the footstool is vertically arranged below the seat;

from an upright position to a TV position, the footrest extends forward to a horizontal position and the backrest tilts rearward;

from the TV position to the lying position, the position of the footrest remains unchanged and the backrest continues to tilt backwards.

In one embodiment, the front end of the driving unit is connected with the leg assembly, and the leg assembly is driven to stretch by the driving unit; the rear end of the driving unit is fixedly connected with the seat board fixing piece.

In one embodiment, the sofa further comprises a reciprocating member mounted below the linkage assembly to reciprocate the sofa.

In an embodiment, two limit posts are mounted at the rear end of the lower swing link, the two limit posts being used for limiting the sofa when reciprocating in the upright position and the TV position, respectively.

In an embodiment, the driving unit is a push rod motor.

The invention has the following beneficial effects:

through the linkage design of the leg connecting rod, the driving connecting rod and the backrest connecting rod, when the sofa is inclined, the footrest and the backrest can move relatively. And because the back support component and the leg component are in two sets of connection modes which are relatively independent, the leg component and the back support component can respectively move, so that when the sofa is in a TV position from an upright position, the back can be inclined backwards for a certain angle, and a user is in a relatively comfortable state.

Drawings

Fig. 1 is a schematic perspective view of a sofa with reciprocating motion according to the present invention.

Fig. 2 is a schematic structural view of the skeleton unit and the driving unit of the present invention.

Fig. 3 shows a top view of the backbone unit and the drive unit of the present invention.

Fig. 4 shows a schematic structural view of the framework unit of the present invention in an upright position.

Fig. 5 shows a schematic structural diagram of the framework unit in the TV position according to the invention.

Fig. 6 shows a schematic structural view of the framework unit in the lying position according to the invention.

Detailed Description

Please refer to fig. 1 to 6. Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. It should be understood that numerous specific details are set forth in the following description in order to provide a thorough understanding of the present invention, however, that the present invention may be practiced in other ways than as described herein, and that the scope of the invention is therefore not limited to the specific embodiments disclosed below. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the invention provides a sofa capable of reciprocating, comprising a seat 1, a backrest 2, a footrest 3 and two armrests 4, wherein when the sofa 1 is in an upright state, the backrest 2 is relatively vertical to the seat 1, the backrest 2 is in an upright position, and the seat 1 is in a horizontal position; the footstool 3 is installed below the seat 1, and the footstool 3 can be controlled to be extended and contracted; two armrests 4 are respectively arranged at two sides of the seat 1.

As shown in fig. 2, the sofa is internally provided with a framework unit 5 and a driving unit 6, the driving unit 6 is installed on the framework unit 5, and the driving unit 6 can drive the framework unit 5 to control the sofa to perform tilting movement, and the sofa is switched between three different states, namely an upright state, a TV state and a lying state.

The skeletal unit 5 is comprised of a plurality of connection assemblies including a base assembly 51, two sets of linkage assemblies 52, a back support assembly 53, and a leg assembly 54. Specifically, the two groups of link assemblies 52 are symmetrically disposed at two sides of the base assembly 51 to drive two sides of the sofa to incline synchronously, and the structures and functions of the two groups of link assemblies 52 are the same; the leg assembly 54 is mounted at the front end of the link assembly 52, and is used for driving the footstool 3 to extend and retract; the backrest support assembly 53 is mounted at the rear end of the link assembly 52 for driving the tilting and retracting of the backrest 2.

Referring to fig. 3 to 6, the base assembly 51 includes two first bottom mounting rods 511, two second bottom mounting rods 512, and a reciprocating member 513, wherein the two first bottom mounting rods 511 are disposed in parallel, the two second bottom mounting rods 512 are mounted between the two first bottom mounting rods 511, and the two second bottom mounting rods 512 are in a perpendicular relationship with the two first bottom mounting rods 511, so that the base assembly 51 has a substantially h-shaped structure, and the sofa is always stable; the reciprocating member 513 is mounted on the first bottom mounting bar 511 to reciprocate the sofa, and the reciprocating member 513 may be a sliding member, a swinging member, or other member capable of reciprocating the sofa.

In this embodiment, the reciprocating member 513 is a swing assembly, and may include a cam 5131 and a spring group 5132, wherein a lower surface of the cam 5131 is a cambered surface, and the cambered surface is mounted on the first bottom mounting rod 511; the link assembly 52 is mounted on the upper surface of the cam 5131; in addition, the lower end of the spring group 5132 is mounted on the second bottom mounting rod 512, and the upper end of the spring 5132 is connected to the convex portion of the upper end of the cam 5131, so that the link assembly 52 can perform a rocking (reciprocating) motion on the base assembly 51 by the cooperation of the cam 5131 and the spring 5132, thereby enabling the sofa to perform a rocking (reciprocating) motion.

Referring to fig. 3 to 6, two sets of link assemblies 52 are disposed on two sides above the base assembly 51 in a mirror image manner, and the two sets of link assemblies 51 have the same structure, and a left link assembly is taken as an example for description. The link assembly 52 includes a seat plate fixing member 521, a front support bar 522, a rear support bar 523, a seat frame mounting plate 524, a driving link 525, a leg link 526, a backrest link 527, a lower swing link 528, and an upper swing link 529. The link assembly 52 is fixedly mounted on the base assembly 51 through the seat plate fixing member 521, the seat frame mounting plate 524 is mounted on the seat plate fixing member 521 through the front support bar 522 and the rear support bar 523, so that the seat frame mounting plate 524, the seat plate fixing member 521, the front support bar 522 and the rear support bar 523 form a substantially parallelogram; the front support rod 522, the rear support rod 523, the seat plate fixing member 521 and the seat frame mounting plate 524 are all rotatably connected through rivets so as to drive the seat frame mounting plate 524 to move back and forth, and the middle part of the front support rod 522 and the middle part of the seat plate fixing member 521 are also connected with a resistance member 5221, and the resistance member 5221 generates certain resistance to reduce the speed of the sofa tilting when the sofa is from a TV position to a lying position and simultaneously provides certain pulling force when the sofa is retracted from the lying position to the TV position. In addition, a limit groove 5211 is further formed at the rear end of the seat plate fixing member 521, and the limit groove 5211 may be a sector. The rear support rod 523 is provided with a limit pin 5231 at a position corresponding to the limit groove 5211, and the rotation state and angle of the backrest support assembly 53 are limited by the cooperation of the limit pin 5231 and the limit groove 5211.

The front end of the driving connecting rod 525 is rotatably connected with the front end of the seat frame mounting plate 524 through the leg connecting rod 526, the rear end of the driving connecting rod 525 is fixedly connected with the rear end of the seat frame mounting plate 524 through the backrest connecting rod 527, and the pedals 3 and the backrest 2 can move relatively when the sofa tilts through the linkage design of the leg connecting rod 526, the driving connecting rod 525 and the backrest connecting rod 527. And because the backrest support assembly 53 and the leg assembly 54 are connected in two sets which are independent, the leg assembly 54 and the backrest support assembly 53 can be respectively moved.

The lower swing link 528 is a movable hook-shaped member, the lower end of the lower swing link 528 is fixedly mounted at the rear end of the driving link 525, and the upper end of the lower swing link 528 is rotatably connected with the upper swing link 529; the upper swing link 529 is a substantially inverted "" shaped member, and includes a first transverse member 5291 located below, a second transverse member 5292 located above, and an axial member 5293 vertically connected to the first and second transverse members 5291, wherein a lower end of the axial member 5293 is rotatably connected to a rear end of the first transverse member 5291, and the axial member 5293 is rotatably connected to a rear end of the second transverse member 5292; the upper end of the lower swing link 528 is rotatably mounted at about the middle of the first cross member 5291, the front end of the first cross member 5291 is rotatably connected to the seat plate fixing member 521, and the upper end of the axial member 5293 is rotatably connected to the seat frame mounting plate 524. By the linkage design of the lower swing link 528 and the upper swing link 529, the backrest support assembly 53 is driven to perform tilting rotation, so that the backrest 2 of the sofa performs tilting rotation.

In addition, a first limit post 5281 and a second limit post 5282 are further mounted at the rear end of the lower swing link 528, and the first limit post 5281 and the second limit post 5282 are used for limiting the sofa when the sofa reciprocates in the upright position and the TV position, respectively. Specifically, in the upright position, the first limiting post 5281 is located below the second limiting post 5282, and when the sofa reciprocates, the first limiting post 5281 first collides against the upper surface of the first bottom mounting bar 511 so as to limit the reciprocating amplitude of the sofa; similarly, in the TV position, the second stopper 5282 is located below the first stopper 5281, and when the sofa reciprocates, the second stopper 5282 first collides against the upper surface of the first bottom mounting bar 511 to limit the reciprocating amplitude of the sofa.

The backrest support assembly 53 is generally L-shaped and includes a first fixing hole 531 and a second fixing hole 532, the first fixing hole 531 and the second fixing hole 532 are disposed in front and rear, the backrest assembly 53 is fixedly connected to the backrest connecting rod 527 through the first fixing hole 531, and the backrest assembly 53 is fixedly connected to the front end of the second shaft member 5292 through the second fixing hole 532. The backrest support 53 can be driven to perform two tilting rotations by the design of the first fixing hole 531 and the second fixing hole 532.

The leg assembly 54 includes a first upper leg link 541, a second upper leg link 542, a first lower leg link 543, a second lower leg link 544, and a first foot pedal bracket 545, the rear end of the first upper leg link 541 is rotatably mounted at the front end of the seat frame mounting plate 524, the front end of the first upper leg link 541 is connected with the rear end of the second upper leg link 542, and the front end of the second upper leg link 542 is rotatably mounted on the foot pedal bracket 545, and in addition, a second foot pedal bracket 546 is mounted in the middle of the second upper leg link 542. The rear end of the first lower leg link 543 is rotatably connected to the second leg link 526, the front end of the first lower leg link 543 is rotatably connected to the rear end of the second lower leg link 544, the front end of the second leg link 544 is rotatably connected to the first pedal bracket 545, and the second lower leg link 544 is rotatably connected to the first upper leg link 541 by a rivet, and the second lower leg link 544 is rotatably connected to the second pedal bracket 546. The foot peg 3 is extended forward and upward when the sofa is reclined by the ganged design of the first upper leg link 541, the second upper leg link 542, the first lower leg link 543, and the second lower leg link 544.

The driving unit 6 is mounted on the framework unit 5 and is used for driving the framework unit 5 to correspondingly move so as to enable the sofa to be switched among three different states, namely an upright state, a TV state and a lying state. The driving unit 6 is installed between the two sets of connecting rod assemblies 52 in a substantially H shape, specifically, the driving unit 6 includes a front mounting rod 61, a rear mounting rod 62, and a driving member 63, the front mounting rod 61 is installed at the front end of the driving member 63, the rear mounting rod 62 is installed at the rear end of the driving member 63, and the front mounting rod 61 or the rear mounting rod 62 can be driven to move by the driving member 63.

The two ends of the front mounting rod 61 are fixedly connected with the two side first lower leg links 543, preferably, the two ends of the front mounting rod 61 may be fixedly mounted at the rear end positions of the two side first lower leg links 543; the two ends of the rear mounting rod 62 are fixedly connected with the seat plate fixing members 521 on both sides, and preferably, the two ends of the rear mounting rod 62 may be fixedly mounted at the rear end positions of the seat plate fixing members 521 on both sides, respectively. The front mounting rod 61 or the rear mounting rod 62 can be driven to move by the driving piece 63, so that the leg connecting rod 526 and the backrest connecting rod 527 can be driven to extend and retract, and the sofa can be switched between three different states, namely an upright state, a TV state and a lying state.

Preferably, in the present embodiment, the driving member 63 may be a push rod motor, the push rod motor includes a motor body 631, a shaft sleeve 632 and a push rod 633, the motor body 611 is fixedly installed at a middle position on the rear mounting rod 62, and a front end of the push rod 632 is fixedly connected with a middle position of the front mounting rod 61; the shaft sleeve 632 is sleeved on the outer periphery of the push rod 633, the rear end of the shaft sleeve 632 is fixedly connected with the motor body 631, and the push rod 633 is driven by the motor body 631 to perform telescopic motion in the shaft sleeve 632. Since the front end of the push rod 633 is fixedly connected to the front mounting rod 61 and the front mounting rod 61 is mounted on the first lower leg link 543, the push rod 633 may extend and retract the leg assembly 544 when being extended and retracted.

Referring again to fig. 4 and 5, when the user controls the driving unit 6 to tilt the sofa from the upright position shown in fig. 4 to the TV position shown in fig. 5, the driving member 63 first pushes the front mounting bar 61 to move forward, the front mounting bar 61 drives the first lower leg link 543 to extend forward, and the second lower leg link 543, the first upper leg link 541 and the second upper leg link 542 are linked and pivoted in such a manner that each of the second lower leg link 543, the first upper leg link 541 and the second upper leg link 542 can extend forward along with the first lower leg link 543 until the leg assembly 54 as a whole reaches the limit position; meanwhile, the driving connection rod 525 connected to the leg connection rod 526 is driven to move forward, so that the lower end of the backrest connection rod 527 fixedly installed at the rear end of the driving connection rod 525 moves forward, and thus the upper end of the backrest connection rod 527 is pushed upward, and since the backrest connection rod 527 is fixedly connected with the first fixing hole 531 located at the front end of the backrest support assembly 53, the front end of the backrest support assembly 53 is moved upward when the backrest connection rod 527 is pushed upward, and thus the backrest support assembly 53 is inclined backward by a certain angle as a whole. Thereby completing the tilting movement of the sofa from the upright to the TV state.

Referring to fig. 5 and 6 again, when the user controls the driving unit 6 to tilt the sofa from the TV position shown in fig. 5 to the lying position shown in fig. 6, the driving part 63 is continuously driven forward, the front mounting bar 61 is moved forward, the leg assembly 54 is not extended forward any more, at this time, the front mounting bar 61 drives the seat frame mounting plate 524 to move forward integrally through the leg connecting bar 526, the seat frame mounting plate 524 drives the upper ends of the front support bar 522 and the rear support bar 523 to move forward simultaneously, so that the seat plate fixing part 521 mounted on the lower ends of the front support bar 522 and the rear support bar 523 moves downward integrally, and the second fixing hole 532 located on the upper rear end of the back support assembly 53 is moved downward through the upper swing connecting bar ', so that the back support assembly 53 tilts backward by a certain angle again, and when the limit pin 5231 on the seat plate support bar 523 moves to the limit groove 521 stops moving upward, the upper edge of the limit groove 521, the tilting state of the sofa is completed from the lying state to the lying state.

Of course, the user can return the sofa from the lying position to the TV position and from the TV position to the upright position by actuating the actuator 63 to retract in opposite directions.

The above embodiment is only one specific embodiment of the present invention presented for illustrating the advantages and functions of the present invention, and those skilled in the art will recognize that other variations of the sofa may be made in connection with the present invention. For example, the driving unit 6 may be of another driving type, for example, a slider motor or another type of motor, or may be of a type in which the push rod 633 of the push rod motor is reversely mounted.

The foregoing is illustrative of the present invention and is not to be construed as limiting thereof. Although exemplary embodiments of this invention have been described, those skilled in the art will readily recognize that there could be variations made to the embodiments without materially departing from the novel teachings and advantages of this invention.

Claims

1. A sofa frame unit movable between an upright position, a TV position and a lying position, comprising

The connecting rod assembly is arranged on the base assembly through a seat plate fixing piece and comprises a leg connecting rod, a driving connecting rod, a backrest connecting rod, an upper swing connecting rod and a lower swing connecting rod, wherein the leg connecting rod and the backrest connecting rod are respectively arranged at two ends of the driving connecting rod; the lower end of the lower swing connecting rod is fixedly arranged at the rear end of the driving connection, and the upper end of the lower swing connecting rod is rotationally connected with the lower end of the upper swing connecting rod;

when the sofa framework is from an upright position to a TV position, the leg connecting rods drive the driving connecting rods to displace forwards, drive the upper ends of the backrest connecting rods to push upwards, the positions of the second fixing holes are fixed, the first fixing holes displace upwards, the front ends of the backrest supporting components are pushed to move upwards, and the backrest supporting components are enabled to incline backwards for a certain angle.

2. The sofa frame unit of claim 1, wherein said upper swing link and said lower swing link drive said back support assembly to tilt rearward when said sofa frame unit is in a reclined position from a TV position.

3. The sofa frame unit of claim 2, wherein the back end of the seat plate fixing member is provided with a limit groove.

4. A sofa for reciprocating movement comprising a seat, a backrest, a footrest and armrests, said seat being arranged horizontally, said backrest being mounted on said seat, said footrest being arranged below said seat, said armrests being mounted on both sides of said seat, characterized by comprising a sofa frame unit according to any one of claims 1-3, and

a driving unit mounted on the frame unit, the driving unit driving the frame unit to move between an upright position, a TV position, and a lying position;

5. The reciprocating sofa of claim 4 wherein said drive unit is connected at a front end to a leg assembly, said leg assembly being driven to extend by said drive unit; the rear end of the driving unit is fixedly connected with the seat board fixing piece.

6. The reciprocating sofa of claim 5 further comprising a reciprocating member mounted below the linkage assembly to reciprocate the sofa.

7. The reciprocating sofa of claim 6 wherein the rear end of the lower swing link is provided with two limit posts for limiting the reciprocating movement of the sofa in the upright and TV positions, respectively.

8. The reciprocating sofa of claim 7 wherein said drive unit is a push rod motor.