CN111759120B - Sofa support structure and sofa - Google Patents

Sofa support structure and sofa Download PDF

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Publication number
CN111759120B
CN111759120B CN201910263301.6A CN201910263301A CN111759120B CN 111759120 B CN111759120 B CN 111759120B CN 201910263301 A CN201910263301 A CN 201910263301A CN 111759120 B CN111759120 B CN 111759120B
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CN
China
Prior art keywords
connecting rod
rod
sofa
group
support structure
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Active
Application number
CN201910263301.6A
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Chinese (zh)
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CN111759120A (en
Inventor
费忠强
孙夕启
费少强
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Haining Meihui Machinery LLC
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Haining Meihui Machinery LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Haining Meihui Machinery LLC filed Critical Haining Meihui Machinery LLC
Priority to CN201910263301.6A priority Critical patent/CN111759120B/en
Priority to DK19020405.7T priority patent/DK3718438T3/en
Priority to ES19020405T priority patent/ES2881348T3/en
Priority to HUE19020405A priority patent/HUE055486T2/en
Priority to EP19020405.7A priority patent/EP3718438B1/en
Priority to PL19020405T priority patent/PL3718438T3/en
Publication of CN111759120A publication Critical patent/CN111759120A/en
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Publication of CN111759120B publication Critical patent/CN111759120B/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/86—Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means

Abstract

The invention relates to a sofa support structure and a sofa, wherein the sofa support structure comprises a pedal rod group, a waist rest rod group, a transmission rod group and a cushion support, the pedal rod group, the waist rest rod group and the transmission rod group are all arranged on the cushion support, the waist rest rod group drives the waist rest rod group to fold and extend through the transmission rod group, the transmission rod group is a transmission rod, one end of the transmission rod is rotatably connected with the waist rest rod group, and the other end of the transmission rod is connected with the pedal rod group. The invention drives the transmission rod group through the pedal rod group and further drives the waist support rod group to rotate through the transmission rod group so as to adjust the sofa support structure into a folded state or an unfolded state; in addition, the lumbar support rod group only rotates correspondingly under the driving action of one driving rod, so that the driving process of the lumbar support rod group is effectively simplified, the structure of the sofa support is simplified, and the sofa support has better stability.

Description

Sofa support structure and sofa
Technical Field
The invention relates to the technical field of intelligent home furnishing, in particular to a sofa support structure and a sofa.
Background
In people's daily life, a sofa has become a very popular furniture, wherein an adjustable sofa can realize the adjustment of the self-inclination angle through an internal sofa support structure. But the inside sofa supporting structure of adjustable sofa relates to spare part more, and sofa supporting structure is comparatively complicated, and stability is relatively poor.
Disclosure of Invention
The invention aims to provide a sofa support structure aiming at the problems of complex structure and poor stability of the sofa support structure in the prior sofa.
In order to achieve the purpose, the invention provides a sofa support structure, which adopts the technical scheme that:
a sofa support structure comprises a pedal rod group, a waist rest rod group, a transmission rod group and a cushion support, wherein the pedal rod group, the waist rest rod group and the transmission rod group are all arranged on the cushion support, the waist rest rod group drives the waist rest rod group to be folded and extended through the transmission rod group, the transmission rod group is a transmission rod, one end of the transmission rod is rotatably connected to the waist rest rod group, and the other end of the transmission rod is connected to the pedal rod group.
In one embodiment, the lumbar support rod assembly includes a first link assembly, a second link assembly, a third link assembly and a lumbar support bracket, wherein the first link assembly is connected to the transmission rod and connected to the seat cushion bracket; the second connecting rod assembly is connected with the cushion bracket and is connected with the waist support bracket; the third link assembly is connected to the first link assembly and to the second link assembly.
In one embodiment, the first link assembly includes:
a second connecting rod, a first end of the second connecting rod being connected to the transmission rod;
a third link lever, a first end of which is connected to a first end of the second link lever, and a second end of which is connected to the seat cushion bracket; and
a fourth link, a first end of the fourth link being connected to a second end of the second link, and a second end of the fourth link being connected to the seat cushion bracket.
In one embodiment, the pedal lever set comprises:
a fifth connecting rod, a first end of which is connected to the cushion bracket and connected to the transmission rod;
a sixth connecting rod, a first end of the sixth connecting rod being connected to a second end of the fifth connecting rod;
a seventh connecting rod, a first end of which is connected to a second end of the sixth connecting rod;
an eighth connecting rod, a first end of which is connected to a second end of the seventh connecting rod;
a ninth link lever, a first end of which is connected to a second end of the eighth link lever, a second end of which is connected to the seat cushion bracket, and the ninth link lever being fixedly connected to an external driving device through a first fixing member;
a pedal bracket connected to the seventh connecting rod; and
a tenth connecting rod, a first end of which is connected to a first end of the eighth connecting rod, and a second end of which is connected to the pedal bracket.
In one embodiment, the second link assembly includes:
an eleventh connecting link, a first end of the eleventh connecting link being connected to the lumbar support;
a twelfth connecting rod, a first end of the twelfth connecting rod being connected to a second end of the eleventh connecting rod; and
a thirteenth link lever, a first end of the thirteenth link lever being connected to a second end of the twelfth link lever, a second end of the thirteenth link lever being connected to the seat cushion bracket, and a third end of the thirteenth link lever being connected to the lumbar support bracket.
In one embodiment, the lumbar support bracket is provided with a limiting member, and the limiting member is used for limiting the eleventh connecting rod.
In one embodiment, the third connecting rod assembly includes:
a fourteenth connecting rod, a first end of which is connected to a third end of the twelfth connecting rod;
a fifteenth connecting rod, a first end of which is connected to a second end of the fourteenth connecting rod;
a sixteenth connecting rod, a first end of the sixteenth connecting rod being connected to a second end of the fifteenth connecting rod;
a seventeenth connecting rod, a first end of the seventeenth connecting rod being connected to a second end of the sixteenth connecting rod;
an eighteenth connecting rod, a first end of which is connected to a second end of the seventeenth connecting rod;
a nineteenth connecting rod, a first end of which is connected to a second end of the eighteenth connecting rod, and a second end of which is connected to the fifteenth connecting rod;
a twentieth connection rod, a first end of which is connected to the eighteenth connection rod, and a second end of which is connected to the fifteenth connection rod; and
a twenty-first connecting rod, a first end of which is connected to the twentieth connecting rod, and a second end of which is connected to the seventeenth connecting rod.
In one embodiment, the sofa support structure further includes a second fixing member, and the second fixing member is mounted to the fifteenth connecting rod and fixedly connects the second fixing member to an external driving device.
In one embodiment, the first connecting rod assembly further comprises a twenty-second connecting rod, a first end of the twenty-second connecting rod is connected to the second connecting rod, and a second end of the twenty-second connecting rod is connected to the sixteenth connecting rod.
A sofa, which comprises the sofa support structure provided by the technical scheme.
The sofa support structure and the sofa provided by the technical scheme drive the transmission rod group through the pedal rod group, and further drive the waist rest rod group to rotate through the transmission rod group so as to adjust the sofa support structure to be in a folded state or an unfolded state; in addition, the lumbar support rod group only rotates correspondingly under the driving action of one driving rod, so that the driving process of the lumbar support rod group is effectively simplified, the structure of the sofa support is simplified, and the sofa support has better stability.
Drawings
FIG. 1 is a schematic view of a sofa support structure in an expanded state according to an embodiment of the invention;
FIG. 2 is a partial schematic structural view of the sofa support structure shown in FIG. 1;
FIG. 3 is a schematic illustration of the sofa support structure shown in FIG. 1 in a partially deployed configuration;
FIG. 4 is a schematic structural view of the sofa support structure shown in FIG. 1 in a collapsed state;
100. a sofa support structure; 10. a pedal lever group; 11. a fifth connecting rod; 12. a sixth connecting rod; 13. a seventh connecting rod; 14. an eighth connecting rod; 15. a ninth connecting rod; 16. a first fixing member; 17. a pedal support; 18. a tenth connecting rod; 20. a lumbar support rod group; 21. a first link assembly; 211. a second connecting rod; 212. a third connecting rod; 213. a fourth connecting rod; 214. a twenty-second connecting rod; 22. a second linkage assembly; 221. an eleventh connecting rod; 222. a twelfth connecting rod; 223. a thirteenth connecting rod; 23. a third link assembly; 231. a fourteenth connecting rod; 232. a fifteenth connecting rod; 233. a sixteenth connecting rod; 234. a seventeenth connecting rod; 235. an eighteenth connecting rod; 236. a nineteenth connecting rod; 237. a twentieth connecting rod; 238. a twenty-first connecting rod; 24. a lumbar support; 241. a limiting member; 30. a transmission rod; 40. a cushion bracket; 50. and a second fixing member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, in one embodiment of the present invention, a sofa support structure 100 is provided, the sofa support structure 100 is suitable for use in furniture products such as sofas and reclining chairs having similar structures.
It is to be understood that the sofa support structure 100 provided in the embodiments is not limited to being installed in a sofa, and the sofa support structure 100 may be installed in a furniture product such as a lounge chair by a worker skilled in the art.
The sofa support structure 100 includes a pedal rod set 10, a lumbar rod set 20, a transmission rod set and a cushion support 40, wherein the pedal rod set 10, the lumbar rod set 20 and the transmission rod set are all disposed on the cushion support 40, and the lumbar rod set 20 drives the lumbar rod set 20 to fold and extend through the transmission rod set. The transmission rod assembly is a transmission rod 30, one end of the transmission rod 30 is rotatably connected to the lumbar support rod assembly 20, and the other end of the transmission rod 30 is connected to the pedal rod assembly 10. Wherein, an external driving device for providing a driving force is connected to the foot lever set 10 to drive the foot lever set 10.
When the sofa support structure 100 is initially in the folded state, the foot bar assembly 10 is extended by the driving of the external driving device (not shown), and further the driving rod 30 is driven by the foot bar assembly 10; the driving rod 30 is used as a driving rod to drive the lumbar support rod set 20 so as to extend the lumbar support rod set 20 from the folded state to the unfolded state. It should be noted that the lumbar support bar set 20 in the sofa support structure 100 is driven by only one driving member 30, which effectively simplifies the number of driving members required for the driving process of the lumbar support bar set 20, further simplifies the number of parts of the sofa support structure 100, and effectively improves the stability of the sofa support structure 100.
The lumbar support rod set 20 includes a first link assembly 21, a second link assembly 22, a third link assembly 23 and a lumbar support bracket 24, wherein the first link assembly 21 is connected to the transmission rod 30 and connected to the seat cushion bracket 40; the second link assembly 22 is connected to the seat cushion bracket 40 and to the lumbar support bracket 24; the third link assembly 23 is connected to the first link assembly 21 and to the second link assembly 22. The first link assembly 21 is driven by the pedal lever assembly 10 to move, and further the first link assembly 21 drives the third link assembly 23 and the second link assembly 22, so that the lumbar support 24 is driven by the second link assembly 22 to move, so that the posture states of the lumbar support, such as the unfolding angle, the height and the like, are changed, and the whole lumbar support lever assembly 20 is adjusted from the folded state to the unfolded state (or from the unfolded state to the folded state).
Wherein, the first link assembly 21 includes: a second connecting rod 211, a third connecting rod 212 and a fourth connecting rod 213, wherein a first end of the second connecting rod 211 is connected with the transmission rod 30; a first end of the second connecting link 211 is connected to a first end of a third connecting link 212, and a second end of the third connecting link 212 is connected to the seat cushion bracket 40; a first end of the fourth connecting rod 213 is connected to a second end of the second connecting rod 211, and a second end of the fourth connecting rod 213 is connected to the seat cushion bracket 40. Wherein the transmission rod 30 is used as a driving rod of the first link assembly 21, and the transmission rod 30 is driven by the pedal rod set 10 to move; further, under the driving action of the driving rod 30, the second connecting rod 211, the third connecting rod 212 and the fourth connecting rod 213 move accordingly, so that the first link assembly 20 is adjusted from the folded state to the unfolded state (or the first link assembly 21 is adjusted from the unfolded state to the folded state).
It should be noted that a plurality of through holes (not shown) are formed in the second connecting rod 212, so that a person skilled in the art can install other parts, such as a pipe, according to actual requirements; in addition, a part of the rod section of the transmission rod 30 is bent, one end of the transmission rod 30, which is bent, is connected to the second connecting rod 211, and one end of the transmission rod 30, which is bent, is connected to one third of the body of the second connecting rod 211, but those skilled in the art can connect the transmission rod 30 to other positions of the body of the second connecting rod 211 according to actual situations.
Wherein, the foot lever group 10 includes: a fifth connecting rod 11, a sixth connecting rod 12, a seventh connecting rod 13, an eighth connecting rod 14 and a ninth connecting rod 15, wherein the first end of the fifth connecting rod 11 is connected to the seat cushion bracket 40 and the first end of the fifth connecting rod 11 is connected to the transmission rod 30, the first end of the sixth connecting rod 12 is connected to the second end of the fifth connecting rod 11, the first end of the seventh connecting rod 13 is connected to the second end of the sixth connecting rod 12, the first end of the eighth connecting rod 14 is connected to the first end of the seventh connecting rod 13, the first end of the ninth connecting rod 15 is connected to the second end of the eighth connecting rod 14, and the second end of the ninth connecting rod 15 is connected to the seat cushion bracket 40.
In addition, the foot bar assembly 10 further includes a first fixing member 16, the first fixing member 16 is mounted on the ninth connecting rod 15, and the first fixing member 16 is used for connecting with an external driving device such as a motor, a pneumatic driving device, etc., so as to drive the first fixing member 16 to move through the external driving device. When the first fixing member 16 is driven, the fifth connecting rod 11, the sixth connecting rod 12, the seventh connecting rod 13, the eighth connecting rod 14 and the ninth connecting rod 15 will move correspondingly, and the pedal rod assembly 10 will be adjusted from the folded state to the unfolded state (or the pedal rod assembly 10 will be adjusted from the unfolded state to the folded state); on the basis that the fifth connecting rod 11 moves, the fifth connecting rod 11 drives the transmission rod 30 to move, and then the transmission rod 30 drives each connecting rod in the first connecting rod assembly 21 to move, so that the first connecting rod assembly 21 can be switched between a folded state and an unfolded state. It should be noted that the seventh connecting rod 13 is in a triangular structure.
In addition, the pedal rod set 10 further includes a pedal bracket 17 and a tenth connecting rod 18, the pedal bracket 17 is connected to the third end of the seventh connecting rod 13, the first end of the tenth connecting rod 18 is connected to the first end of the eighth connecting rod 14, and the second end of the tenth connecting rod 18 is connected to the pedal bracket 17. When a user uses the sofa with the sofa support structure 100, the user can place feet on the pedal support 17, and in addition, the pedal support 17 rotates under the synergistic action of the connecting rods in the pedal rod group 10, so that the unfolding angle of the pedal support 17 can be conveniently adjusted, and the comfort level of the user using the sofa with the sofa support structure 100 is effectively improved; and when the sofa support structure 100 is in the unfolding state, the connecting rods in the foot pedal set 10 cooperate with each other to support the foot pedal 17, so as to improve the stability of the foot pedal 17 during the use process.
Wherein the second link assembly 22 includes: an eleventh connecting rod 221, a twelfth connecting rod 222 and a thirteenth connecting rod 223, wherein a first end of the eleventh connecting rod 221 is connected to the lumbar support bracket 24, a first end of the twelfth connecting rod 222 is connected to a second end of the eleventh connecting rod 221, a first end of the thirteenth connecting rod 223 is connected to a second end of the twelfth connecting rod 222, a second end of the thirteenth connecting rod 223 is connected to the cushion bracket 40, and a third end of the thirteenth connecting rod 223 is connected to the lumbar support bracket 24. In addition, a stopper 241 is provided on the lumbar support bracket 24, and the stopper 241 is used for stopping the eleventh connecting rod 221, that is: when the second link assembly 22 is in the unfolded state, the movable range of the first end of the eleventh link 221 can be limited by the limiting member 241, so that the unfolding angle of the lumbar support bracket 24 is limited by the limiting member 241, and the lumbar support bracket 24 is kept stable by the cooperation of the limiting member 241 and the second link assembly 22.
It should be noted that the structure of the lumbar support bracket 24 is zigzag, so that the lumbar support bracket 24 is matched with the structure of the sofa backrest; in addition, the thirteenth connecting rod 223 is a "U" shaped structure, the first end and the second end of the thirteenth connecting rod 223 are respectively located at two ends of the "U" shaped structure, and a protrusion, that is, the third end of the thirteenth connecting rod 223 is formed at the bottom of the "U" shaped structure.
Wherein, this fourth link assembly 23 includes: a fourteenth connection rod 231, a fifteenth connection rod 232, a sixteenth connection rod 233, a seventeenth connection rod 234, an eighteenth connection rod 235, a nineteenth connection rod 236, a twentieth connection rod 237 and a twenty-first connection rod 238, wherein a first end of the fourteenth connection rod 231 is connected to a third end of the twelfth connection rod 222, a first end of the fifteenth connection rod 232 is connected to a second end of the fourteenth connection rod 231, a first end of the sixteenth connection rod 233 is connected to a second end of the fifteenth connection rod 232, a first end of the seventeenth connection rod 234 is connected to a second end of the sixteenth connection rod 233, a first end of the eighteenth connection rod 235 is connected to a second end of the seventeenth connection rod 234, a first end of the nineteenth connection rod 236 is connected to a second end of the eighteenth connection rod 235 and a second end of the nineteenth connection rod 236 is connected to the fifteenth connection rod 232, a first end of the twentieth connection rod 237 is connected to the eighteenth connection rod 235 and a second end of the twentieth connection rod 237 is connected to the fifteenth connection rod The rods 232 are connected; a first end of the twenty-first connecting link 238 is connected to the twentieth connecting link 237, and a second end of the twenty-first connecting link 238 is connected to the seventeenth connecting link 234. In addition, a second fixing member 50 is further installed on the fifth connecting rod 232, the second fixing member 50 is fixedly connected to an external driving device, and the first fixing member 16 and the second fixing member 50 are respectively connected to both ends of the external driving device.
The first link assembly 21 is further provided with a twenty-second link 214, a first end of the twenty-second link 214 is connected to the second link 211, and a second end of the twenty-second link 214 is connected to a sixteenth link 233 in the third link assembly 23, so that the twenty-second link 214 is driven by the second link 211 to drive the sixteenth link 233 to move, and further drive other links in the third link assembly 23 to move, so that the third link assembly 23 is adjusted from the folded state to the unfolded state (or the third link assembly 23 is adjusted from the unfolded state to the folded state). Thus, the third link assembly 23 is movable by the action of the twenty-second link 214 in the first link assembly 21, and cooperates with the second link assembly 22 to dynamically adjust the attitude of the lumbar support bracket 24.
It should be noted that, in the above embodiments, all the connecting rods may be connected by hinging, riveting, or the like.
The adjustment process of the sofa support structure 100 provided in the above embodiment is explained by taking the motor as an example of the external driving device installed on the first fixing member 16 and the second fixing member 50, and specifically, the following steps are performed:
when the sofa frame structure 100 is initially in the fully folded state, as shown in fig. 4, when the motor drives the first fixing member 16 so that the first fixing member 16 drives the ninth connecting rod 15, and the ninth connecting rod 15 is used as a driving rod to drive the fifth connecting rod 11, the sixth connecting rod 12, the seventh connecting rod 13, the eighth connecting rod 14 and the ninth connecting rod 15 in the pedal rod set 10, so that the pedal assembly 10 is adjusted from the fully folded state to the unfolded state; meanwhile, the pedal bracket 17 is driven by the fifth connecting rod 11, the sixth connecting rod 12, the seventh connecting rod 13, the eighth connecting rod 14, the ninth connecting rod 15 and the tenth connecting rod 18 to rotate, so that the pedal bracket 17 is adjusted from the folded state to the unfolded state, and the pedal bracket 17 moves away from the cushion bracket 40, as shown in fig. 3;
in addition, when the fifth connecting rod 11 is in the moving state, the fifth connecting rod 11 drives the transmission rod 30 to rotate, and the transmission rod 30 is used as a driving member to drive the second connecting rod 211, the third connecting rod 212, the fourth connecting rod 213 and the twenty-second connecting rod 214 to move, so that the first connecting rod assembly 21 is adjusted from the folded state to the unfolded state, as shown in fig. 4;
the twenty-second connecting rod 214 of the first connecting rod assembly 21 is connected to the sixteenth connecting rod 233 of the third connecting rod assembly 23, and when the twenty-second connecting rod 214 moves, the sixteenth connecting rod 233 also moves correspondingly, so that the sixteenth connecting rod 233 drives the fourteenth connecting rod 231, the fifteenth connecting rod 232, the seventeenth connecting rod 234, the eighteenth connecting rod 235, the nineteenth connecting rod 236, the twentieth connecting rod 237 and the twenty-first connecting rod 238 to move correspondingly, so that the third connecting rod assembly 23 is adjusted from the folded state to the unfolded state, as shown in fig. 1;
in addition, when the fourteenth connecting rod 231 in the third connecting rod assembly 23 is in a moving state, the fourteenth connecting rod 231 will drive the twelfth connecting rod 222 in the second connecting rod assembly 22 to move; furthermore, the twelfth connecting rod 222, as a driving rod in the second connecting rod assembly 22, drives the eleventh connecting rod 221 and the thirteenth connecting rod 223, so that the lumbar support 24 is driven by the eleventh connecting rod 221 and the thirteenth connecting rod 223 to adjust the unfolding angle, the height and other posture states; in addition, the rotation range of the eleventh connecting rod 221 is also limited by the limiting member 241, so as to support the lumbar support bracket 24 through a support framework formed between the connecting rods of the second connecting rod assembly 22 and the third connecting rod assembly 23, as shown in fig. 1.
In an embodiment of the present invention, a sofa (not shown) is further provided, and the sofa is equipped with the sofa support structure 100 provided in the above embodiment.
In the sofa support structure 100 and the sofa provided in the above embodiments, the external driving device connected to the foot bar set 10 drives the foot bar set 10, and further drives the transmission rod 30, the first link assembly 21, the second link assembly 22, the third link assembly 23, the lumbar support 24 and other components to move through the foot bar set 10, so as to adjust the sofa support structure 100 to the folded state or the unfolded state; in addition, the first link assembly 21 only rotates correspondingly under the driving action of the driving rod 30, which effectively simplifies the driving process of the first link assembly 21 and simplifies the sofa support structure 100, thereby having better stability.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A sofa support structure (100) comprises a pedal rod group (10), a waist rest rod group (20), a transmission rod group and a cushion support (40), wherein the pedal rod group (10), the waist rest rod group (20) and the transmission rod group are all arranged on the cushion support (40), the waist rest rod group (20) drives the waist rest rod group (20) to be folded and extended through the transmission rod group, the sofa support structure is characterized in that the transmission rod group is a transmission rod (30), one end of the transmission rod (30) is rotatably connected to the waist rest rod group (20), and the other end of the transmission rod (30) is connected to the pedal rod group (10);
the pedal rod group (10) extends under the driving action of an external driving device, the transmission rod (30) is driven by the pedal rod group (10), and the transmission rod (30) drives the lumbar support rod group (20) to enable the lumbar support rod group (20) to extend from a folded state to an unfolded state.
2. The sofa support structure (100) according to claim 1, wherein the lumbar support bar set (20) comprises a first link assembly (21), a second link assembly (22), a third link assembly (23), and a lumbar support bracket (24), the first link assembly (21) being connected to the drive bar (30) and to the seat cushion bracket (40); the second connecting rod assembly (22) is connected to the cushion bracket (40) and is connected with the waist support bracket (24); the third connecting rod assembly (23) is connected to the first connecting rod assembly (21) and to the second connecting rod assembly (22).
3. The sofa support structure (100) according to claim 2, wherein the first link assembly (21) comprises:
a second connecting rod (211), a first end of the second connecting rod (211) being connected to the driving rod (30);
a third connecting rod (212), a first end of the third connecting rod (212) being connected to a first end of the second connecting rod (211), and a second end of the third connecting rod (212) being connected to the seat cushion bracket (40); and
a fourth connecting rod (213), a first end of the fourth connecting rod (213) is connected to a second end of the second connecting rod (211), and a second end of the fourth connecting rod (213) is connected to the seat cushion bracket (40).
4. The sofa support structure (100) according to claim 2, wherein the foot bar set (10) comprises:
a fifth connecting rod (11), a first end of the fifth connecting rod (11) is connected to the seat cushion bracket (40) and is connected with the transmission rod (30);
a sixth connecting rod (12), a first end of the sixth connecting rod (12) being connected to a second end of the fifth connecting rod (11);
a seventh connecting rod (13), a first end of the seventh connecting rod (13) being connected to a second end of the sixth connecting rod (12);
an eighth connecting rod (14), a first end of the eighth connecting rod (14) being connected to a second end of the seventh connecting rod (13);
a ninth connecting rod (15), wherein a first end of the ninth connecting rod (15) is connected to a second end of the eighth connecting rod (14), a second end of the ninth connecting rod (15) is connected to the seat cushion bracket (40), and the ninth connecting rod (15) is fixedly connected with an external driving device through a first fixing piece (16);
the pedal bracket (17), the pedal bracket (17) is connected with the seventh connecting rod (13); and
a tenth connecting rod (18), a first end of the tenth connecting rod (18) being connected to a first end of the eighth connecting rod (14), a second end of the tenth connecting rod (18) being connected to the pedal bracket (17).
5. The sofa support structure (100) according to claim 3, wherein the second linkage assembly (22) comprises:
an eleventh connecting rod (221), a first end of the eleventh connecting rod (221) being connected to the lumbar support bracket (24);
a twelfth connecting rod (222), a first end of the twelfth connecting rod (222) being connected to a second end of the eleventh connecting rod (221); and
a thirteenth connecting rod (223), a first end of the thirteenth connecting rod (223) is connected to a second end of the twelfth connecting rod (222), a second end of the thirteenth connecting rod (223) is connected to the cushion bracket (40), and a third end of the thirteenth connecting rod (223) is connected to the lumbar support bracket (24).
6. The sofa support structure (100) according to claim 5, wherein a stop (241) is disposed on the lumbar support (24), the stop (241) being configured to stop the eleventh connecting rod (221).
7. The sofa support structure (100) according to claim 5, wherein the third connecting-rod assembly (23) comprises:
a fourteenth connecting rod (231), wherein a first end of the fourteenth connecting rod (231) is connected to a third end of the twelfth connecting rod (222);
a fifteenth connecting rod (232), a first end of the fifteenth connecting rod (232) being connected to a second end of the fourteenth connecting rod (231);
a sixteenth connecting rod (233), wherein a first end of the sixteenth connecting rod (233) is connected to a second end of the fifteenth connecting rod (232);
a seventeenth connecting rod (234), a first end of the seventeenth connecting rod (234) being connected to a second end of the sixteenth connecting rod (233);
an eighteenth connecting rod (235), a first end of the eighteenth connecting rod (235) being connected to a second end of the seventeenth connecting rod (234);
a nineteenth connecting rod (236), a first end of the nineteenth connecting rod (236) being connected to a second end of the eighteenth connecting rod (235), a second end of the nineteenth connecting rod (236) being connected to the fifteenth connecting rod (232);
a twentieth connecting rod (237), a first end of the twentieth connecting rod (237) being connected to the eighteenth connecting rod (235), a second end of the twentieth connecting rod (237) being connected to the fifteenth connecting rod (232); and
a twenty-first connecting rod (238), a first end of the twenty-first connecting rod (238) being connected to the twentieth connecting rod (237), a second end of the twenty-first connecting rod (238) being connected to the seventeenth connecting rod (234).
8. The sofa support structure (100) according to claim 7, wherein the sofa support structure (100) further comprises a second fastener (50), the second fastener (50) being mounted to the fifteenth connecting rod (232) and fixedly connecting the second fastener (50) to an external driving device.
9. The sofa support structure (100) according to claim 7, wherein the first linkage assembly (21) further includes a twenty-second linkage (214), the twenty-second linkage (214) having a first end connected to the second linkage (211), the twenty-second linkage (214) having a second end connected to the sixteenth linkage (233).
10. A sofa comprising the sofa support structure (100) according to any one of claims 1-9.
CN201910263301.6A 2019-04-02 2019-04-02 Sofa support structure and sofa Active CN111759120B (en)

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CN201910263301.6A CN111759120B (en) 2019-04-02 2019-04-02 Sofa support structure and sofa
DK19020405.7T DK3718438T3 (en) 2019-04-02 2019-06-26 SOFA SUPPORT CONSTRUCTION AND SOFA THEREOF
ES19020405T ES2881348T3 (en) 2019-04-02 2019-06-26 Sofa and sofa support structure for the same
HUE19020405A HUE055486T2 (en) 2019-04-02 2019-06-26 Sofa support structure and sofa thereof
EP19020405.7A EP3718438B1 (en) 2019-04-02 2019-06-26 Sofa support structure and sofa thereof
PL19020405T PL3718438T3 (en) 2019-04-02 2019-06-26 Sofa support structure and sofa thereof

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CN214258669U (en) 2021-01-19 2021-09-24 德沃康科技集团有限公司 Adjustable support and high-foot sofa

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CN102133006A (en) * 2010-01-25 2011-07-27 L&P产权管理公司 Zero-wall-clearance linkage mechanism for a high-leg seating unit
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ES2881348T3 (en) 2021-11-29
PL3718438T3 (en) 2021-12-06
EP3718438B1 (en) 2021-06-02
DK3718438T3 (en) 2021-08-16
EP3718438A1 (en) 2020-10-07
CN111759120A (en) 2020-10-13

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