Patent Application
20230232986
The present invention relates to the field of furniture manufacturing, in particular to an extendable seating interconnected mechanism and seating supporting frame.
With the gradual improvement of people's living standards, intelligent furniture, including sofas, recliners, office chairs, theatre chairs, and other seats, become increasingly functional, which may not only meet the demand for different positions but also provide better relaxation for the body.
At present, the interconnected structure for adjusting the position of the seat in the prior art is generally complex, leading to a poor transformation of the position, a relatively high overall structure, a large volume, and a large space occupation of the seating supporting frame unit, which not only takes up space during transport and increases transport costs but is also bulky when in use, affecting the overall appearance and comfort of the sofa.
The purpose of the present invention is to overcome the complex structure, relatively high height, large size, and jamming and lagging seating position adjustment of the seating supporting frame in the prior art.
In order to realize the purpose mentioned above, an extendable seating interconnected mechanism is provided in the present invention, comprising an interconnected assembly, a seating frame, and a backrest mount, wherein the backrest mount is rotatably connected to the interconnected assembly and the seating frame, respectively; the interconnected assembly comprises a mounting plate and a driving link, wherein the mounting plate comprises a lateral-plate part and a supporting part; the driving link is rotatably connected between the seating frame and the lateral-plate part; an end of the supporting part is connected to the lateral-plate part; and an opposite end of the supporting part is rotatably connected to the backrest mount.
Further, the lateral-plate part is fixedly connected to the supporting part, or the lateral-plate part and the supporting part are integrally formed into an L-shape.
Further, an angle between the lateral-plate part and the supporting part is between 90 and 100 degrees.
Further, the backrest mount is bent and formed integrally into a first segment, a second segment, and a third segment; the first segment is rotatably connected to a side of the seating frame; the second segment is rotatably connected to the supporting part; and the third segment is connected to the backrest frame of the seat.
A seating supporting frame is further provided in the present invention, comprising an interconnected assembly, a seating frame, a backrest mount, and a first transmitting part, wherein the backrest mount is rotatably connected to the interconnected assembly and the seating frame, respectively; the interconnected assembly comprises a mounting plate and a driving link, wherein the mounting plate comprises a lateral-plate part and a supporting part; the driving link is rotatably connected between the seating frame and the lateral-plate part; an end of the supporting part is connected to the lateral-plate part; an opposite end of the supporting part is rotatably connected to the backrest mount; an end of the first transmitting part is connected to an extendable and retractable footrest mechanism of a seat; an opposite end of the first transmitting part is connected to the lateral-plate part; and the interconnected assembly transmits pull forces to an extendable and retractable footrest mechanism through the first transmitting part.
In addition, the seating supporting frame further comprises a second transmitting part, wherein the second transmitting part is obliquely provided between the seating frame and the lateral-plate part; an end of the second transmitting part is connected to a sidewall of the seating frame; and an opposite end of the second transmitting part is connected to an end, near the supporting part, of the lateral-plate part.
Further, a first hinge point and a second hinge point are provided on two ends of the lateral-plate part; the lateral-plate part is connected to the driving link through the first hinge point; and the lateral-plate part is connected to the supporting part through the second hinge point.
In addition, a first fixing part is further provided on the lateral-plate part, wherein a ratio of a distance between the first fixing part and the first hinge point to a distance between the first fixing part and the second hinge point is greater than one; and the first fixing part is connected to an end of the first transmitting part.
Further, a second fixing part is further provided on the lateral-plate part, wherein a ratio of a distance between the second fixing part and the first hinge point to a distance between the second fixing part and the second hinge point is greater than two; and the second fixing part is connected to an end of the second transmitting part.
Further, the first transmitting part and the second transmitting part are elastic connectors with elastic recovery.
In addition, the seating supporting frame further comprises an extendable and retractable footrest mechanism, wherein the extendable and retractable footrest mechanism comprises a link assembly, a main footrest part, and a sub-footrest part assembly; the link assembly is used for driving the main footrest part and the sub-footrest assembly to extend or retract relative to the seating frame; the link assembly comprises a first link, a second link, a third link, and a fourth link, wherein the first link is connected to the second link, and the third link is connected to the fourth link; a central part of the second link is crossly connected to a central part of the third link; the first link and the third link are connected to the seating frame, respectively; and the second link and the fourth link are connected to the main footrest part, respectively.
In addition, the extendable and retractable footrest mechanism further comprises a transmitting connecting part, wherein the transmitting connecting part is provided on a side where the extendable and retractable footrest mechanism is connected to the first transmitting part; an end of the transmitting connecting part is rotatably connected to the first link; and an opposite end of the transmitting connecting part is connected to the first transmitting part.
Further, oppositely provided on the seating supporting frame are two sets of the interconnected assembly, the seating frame, the backrest mount, the first transmitting part, and the extendable and retractable footrest mechanism.
In addition, the seating supporting frame further comprises a transverse mounting link, a transverse driving link, and a driving mechanism, wherein two ends of the transverse mounting link are connected to two supporting parts, respectively; two ends of the transverse driving link are connected to a central part of two first links, respectively; and the driving mechanism is provided between the transverse driving link and the transverse mounting link, so as to enable the seating supporting frame to be switched between seated, extended, and reclined positions.
In comparison with the prior art, the present invention provides beneficial effects as follows: the structure of the extendable seating interconnected mechanism is optimized and simplified in the present invention, leading to a reduction of the manufacturing cost and a compression of the overall height of the seating supporting frame; a seat may be adjusted smoother during retracting from the reclined position by connecting the extendable and retractable footrest mechanism and the interconnected assembly through transmitting parts, which improves the comfort of the seat.
In order to illustrate more clearly the technical solutions in the embodiments of the present invention or in the prior art, provided hereinafter is a brief description of the attached drawings required for the description of the embodiments or of the prior art. Obviously, the attached drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained on the basis of these attached drawings without any inventive effort by those of ordinary skill in the art.
1: interconnected assembly; 2: first transmitting part; 22: second transmitting part; 10: mounting plate; 11: driving link; 12: lateral-plate part; 13: supporting part; 3: seating frame; 4: backrest mount; 5: extendable and retractable footrest mechanism; 121: first hinge point; 122: second hinge point; 123: first fixing part; 124: second fixing part; 41: first segment; 42: second segment; 43: third segment; 51: link assembly; 511: first link; 512: second link; 513: third link; 514: fourth link; 52: main footrest part; 53: sub-footrest part assembly; 531: sub-footrest part; 532: footrest link; 54: transmitting connecting part; 6: transverse mounting link; 7: transverse driving link; 200: armrest frame; 400: backrest frame.
In order to provide a better understanding of the purpose, technical solutions, and advantages of the present invention, the invention is described hereinafter with further details in conjunction with specific embodiments and with reference to the attached drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.
In the description of the invention, it is to be understood that ordinal terms such as “first”, “second” and “third” are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical feature. Thus, features identified with “first” and “second” may explicitly or implicitly include one or more of those features.
Furthermore, in the present invention, the terms “mount”, “connect”, etc., should be understood in a broad sense unless otherwise explicitly specified and limited. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium; and it may be a connection within two components. To those of ordinary skill in the art, the actual meaning of the above terms in the present invention may be understood according to the actual situation.
The extendable seating interconnected mechanism and the seating supporting frame in the present invention may be applied to sofas, office chairs, lounge chairs, and other seats, in which seated, extended, and reclined positions of seats may be realized. Further, in the seated position, the seating frame is in general horizontal and the backrest is substantially perpendicular to the seating frame; in the extended position, the extendable and retractable footrest mechanism extends forward; in the reclined position, the backrest and the backrest mount rotates backward relative to the seating frame on the basis of the extended position, so that a seat may be reclined.
As shown in
Specifically, the lateral-plate part 12 is fixedly connected to the supporting part 13, or the lateral-plate part 12 and the supporting part 13 are integrally formed into an L-shape. An angle between the lateral-plate part 12 and the supporting part 13 is between 90 and 100 degrees. The lateral-plate part 12 and the supporting part 13 may be two separate parts that are fixedly connected by fasteners, which may improve the utilization of the product during the manufacturing process. In some embodiments, the lateral-plate part 12 and the supporting part 13 may also be an integrally bent and formed L-shaped assembly, which may be integrally forged and leads to a reduction of manufacturing steps. In the embodiment of the present invention, the supporting part 13 extends in the direction of the lateral-plate part 12 to form a fixed connection close to the middle of the lateral-plate part 12, which forms a bent shape and may lead to an increase of the overall structural strength of the interconnected assembly 1.
Specifically, the backrest mount 4 is bent and formed integrally into a first segment 41, a second segment 42, and a third segment 43; the first segment 41 is rotatably connected to a side of the seating frame 3; the second segment 42 is rotatably connected to the supporting part 13; and the third segment 43 is connected to the backrest frame of the seat. Specifically, the third segment 43 of the backrest mount 4 may be a structure like an insertion piece connected to the backrest frame of a seat by inserting. The backrest mount 4 may also be bent to a mount like a Z-shape.
A seating supporting frame is further provided in the embodiment of the present invention, comprising an interconnected assembly 1, a seating frame 3, a backrest mount 4, and a first transmitting part 2, wherein the backrest mount 4 is rotatably connected to the interconnected assembly 1 and the seating frame 3, respectively; the interconnected assembly 1 comprises a mounting plate 10 and a driving link 11, wherein the mounting plate 10 comprises a lateral-plate part 12 and a supporting part 13; the driving link 11 is rotatably connected between the seating frame 3 and the lateral-plate part 12; an end of the supporting part 13 is connected to the lateral-plate part 12; an opposite end of the supporting part 13 is rotatably connected to the backrest mount 4.
Specifically, an end of the first transmitting part 2 is connected to an extendable and retractable footrest mechanism 5 of a seat; an opposite end of the first transmitting part 2 is connected to the lateral-plate part 12; the interconnected assembly 1 transmits pull forces to an extendable and retractable footrest mechanism 5 through the first transmitting part 2; and the first transmitting part 2 is extended as the extendable and retractable footrest mechanism 5 is extended forward. Specifically, the first transmitting part 2 may be an elastic connector with elastic recovery. In the present embodiment, the first transmitting part 2 may be a spring with hooks or rings at both ends, or a structure such as an elastic cord or an elastic zip in some other embodiments.
Specifically, as shown in
Specifically, as shown in
Specifically, a first fixing part 123 is further provided on the lateral-plate part 12, wherein a ratio of a distance between the first fixing part 123 and the first hinge point 121 to a distance between the first fixing part 123 and the second hinge point 122 is greater than one; and the first fixing part 123 is connected to an end of the first transmitting part 2. A second fixing part 124 is further provided on the lateral-plate part 12, wherein a ratio of a distance between the second fixing part 124 and the first hinge point 121 to a distance between the second fixing part 124 and the second hinge point 122 is greater than two; and the second fixing part 124 is connected to an end of the second transmitting part 22. Specifically, the second fixing part 124 is closer to the second hinge point 122 than the first hinge point 121, and the fixing position of the second fixing part 124 is close to the lower edge of the lateral-plate part 12. The first fixing part 123 and the second fixing part 124 may be fixing screws, hooks, pins, or other parts with a fixing or hooking function.
Specifically, in the present embodiment, the interconnected assembly 1 is provided between the seating frame 3 and the backrest mount 4, which is used for supporting and driving the backrest mount 4 to rotate relative to the seating frame 3 during the adjustment of the seating position.
During extension, the seating frame 3 is rotated upwards at an inclined angle by the extendable and retractable footrest mechanism 5, which is tightened by the first transmitting part 2. When the seat is retracted from the reclined position, the seating frame 3 is smoothly rotated and retracted by the elastic force for restoring the second transmitting part 22 and by its gravity.
Specifically, the seating supporting frame further comprises an extendable and retractable footrest mechanism 5, as shown in
Specifically, the sub-footrest assembly 53 comprises sub-footrest part 531 and footrest link 532, wherein the sub-footrest part 531 is connected to the main footrest part 52, wherein the sub-footrest part 531 is connected to the fourth link 514 through the footrest link 532. In the present embodiment, the main footrest part 52 and the sub-footrest part 531 are used to mount a main footrest and a sub-footrest, respectively. In some embodiments, the extendable and retractable footrest mechanism 5 may comprise a different quantity of footrests, such as one, two, or three; the extended length of the extendable and retractable footrest mechanism 5 also varies.
Specifically, the extendable and retractable footrest mechanism 5 further comprises a transmitting connecting part 54, wherein the transmitting connecting part 54 is provided on a side where the extendable and retractable footrest mechanism 5 is connected to the first transmitting part 2; an end of the transmitting connecting part 54 is rotatably connected to the first link 511; and an opposite end of the transmitting connecting part 54 is connected to the first transmitting part 2.
Specifically, oppositely provided on the seating supporting frame in the present embodiment are two sets of the interconnected assembly 1, the seating frame 3, the backrest mount 4, the first transmitting part 2, and the extendable and retractable footrest mechanism 5.
Specifically, the seating supporting frame further comprises a transverse mounting link 6, a transverse driving link 7, and a driving mechanism, wherein two ends of the transverse mounting link 6 are connected to two supporting parts 13, respectively; two ends of the transverse driving link 7 are connected to a central part of two first links 511, respectively; and the driving mechanism is provided between the transverse driving link 7 and the transverse mounting link 6, so as to enable the seating supporting frame to be switched between seated, extended, and reclined positions. Specifically, the driving mechanism is a linear drive, which may be a pusher motor; only one pusher motor is required to realize the seating adjustment between three positions in the present embodiment. The side near the motor of the driving mechanism is connected to the transverse mounting link 6 through a mounting part; the side near the pusher of the driving mechanism is connected to the transverse driving link 7 through a mounting part.
Specifically,
Specifically, as shown in
As shown in
| Number | Date | Country | Kind |
|---|---|---|---|
| 202011069268.2 | Sep 2020 | CN | national |
| 202011069718.8 | Sep 2020 | CN | national |
The present application is a Continuation Application of PCT Application No. PCT/CN2021/121427 filed on Sep. 28, 2021, which claims the benefit of Chinese Patent Application Nos. 202011069718.8 and 202011069268.2 filed on Sep. 30, 2020. All the above are hereby incorporated by reference in their entirety.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2021/121427 | Sep 2021 | US |
| Child | 18128303 | US |
