CN220734905U - Backrest device and seat - Google Patents

Backrest device and seat Download PDF

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Publication number
CN220734905U
CN220734905U CN202322334213.5U CN202322334213U CN220734905U CN 220734905 U CN220734905 U CN 220734905U CN 202322334213 U CN202322334213 U CN 202322334213U CN 220734905 U CN220734905 U CN 220734905U
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CN
China
Prior art keywords
sliding
sliding sleeve
locking
piece
support
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Active
Application number
CN202322334213.5U
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Chinese (zh)
Inventor
尤兆根
韩建锐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Jingyi Furniture Co.,Ltd.
Original Assignee
Foshan Sitzone Furniture Co ltd
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
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Priority to CN202322334213.5U priority Critical patent/CN220734905U/en
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Publication of CN220734905U publication Critical patent/CN220734905U/en
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Abstract

The utility model discloses a backrest device and a seat, wherein the backrest device comprises: the support assembly comprises a chair back, and two sides of the middle part of the chair back are rotatably connected to the support; the adjusting component comprises a sliding sleeve, a sliding part and an elastic part, wherein the sliding sleeve is hinged to the support and is provided with an opening towards the chair back, one end of the sliding part is inserted into the sliding sleeve, the other end of the sliding part is hinged to the lower end of the chair back, the elastic part is arranged between the sliding sleeve and the sliding part, one end of the elastic part is connected with the sliding sleeve, the other end of the elastic part is connected with the sliding part, the elastic part is used for pushing the sliding part to enable the sliding part to move towards the direction deviating from the sliding sleeve, in the use process, the chair back can rotate on the support by taking the middle part as a rotating shaft, and the sliding part below the chair back also slides along the sliding sleeve, so that the chair is more attached to the back of a user, better supporting force can be provided, and the user experience is improved.

Description

Backrest device and seat
Technical Field
The utility model relates to the technical field of seat manufacturing, in particular to a backrest device and a seat.
Background
In the related art, the chair back of the chair is usually fixed on the base, and when in-service use, a user lies down or stretches out of the waist, the position of the back of the human body can change, and the chair back fixed on the base can not realize very good support to the back of the user, so that user experience is affected.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the backrest device provided by the utility model has the advantages that the backrest can rotate on the support by taking the middle part as the rotating shaft, and the sliding piece below the backrest also slides along the sliding sleeve, so that the seat is more attached to the back of a user, better supporting force is provided, and the user experience is improved.
In a second aspect, the utility model also provides a seat using the backrest device.
An embodiment of the present utility model provides a backrest device including: the device comprises a bracket, a supporting component and an adjusting component; the support assembly comprises a chair back, and the middle part of the chair back is rotationally connected with the bracket; the adjusting assembly comprises a sliding sleeve, a sliding piece and an elastic piece, wherein the sliding sleeve is hinged to the support, one end of the sliding piece is inserted into the sliding sleeve, the other end of the sliding piece is hinged to the lower end of the chair back, the elastic piece is arranged between the sliding sleeve and the sliding piece, the sliding piece can move towards or away from the sliding sleeve, and the elastic piece is used for pushing the sliding piece to enable the sliding piece to move towards the direction away from the sliding sleeve.
The backrest device provided by the embodiment of the first aspect of the utility model has at least the following beneficial effects: when a user sitting on the seat lies down or stretches out to the waist, force acts on the chair back, the chair back can rotate on the support by taking the middle part as a rotating shaft, and the sliding piece below the chair back also slides along the sliding sleeve, so that the chair is more attached to the back of the user, and better supporting force is provided; when the user stands up, the elastic force of the elastic piece acts on the sliding piece, and the sliding piece can be pushed to move along the direction deviating from the sliding sleeve, so that the chair back is driven to reset, and the user experience is improved.
According to the backrest device provided by the embodiment of the first aspect of the utility model, the supporting component further comprises a waist rest and a connecting rod, the upper end of the waist rest is hinged to the bracket, one end of the connecting rod is hinged to the lower end of the waist rest, and the other end of the connecting rod is hinged to the lower end of the chair back.
According to an embodiment of the first aspect of the present utility model, the support includes two support arms arranged opposite to each other, and two sides of the lumbar support are hinged to the two support arms respectively.
According to the backrest device provided by the embodiment of the first aspect of the utility model, the two supporting arms are provided with the rotating grooves, the two sides of the middle part of the backrest are provided with the rotating shafts, the rotating shafts are inserted into the rotating grooves, and the supporting arms are connected with the limiting pieces so as to limit the rotating shafts in the rotating grooves.
According to an embodiment of the first aspect of the present utility model, the adjusting assembly includes two elastic members, and the two elastic members are disposed on two sides of the sliding sleeve.
According to the back rest device provided by the embodiment of the first aspect of the utility model, the elastic piece is a spring, the sliding sleeve and the sliding piece are provided with mounting columns, and two ends of the spring are respectively sleeved on the mounting columns.
According to the back rest device provided by the embodiment of the first aspect of the utility model, the locking assembly is located above the sliding sleeve and used for locking the sliding piece.
According to the back rest device provided by the embodiment of the first aspect of the utility model, the locking assembly comprises a locking seat, a locking piece and a control rod, a jack is arranged on the upper side of the sliding sleeve, the locking seat is connected to the sliding sleeve and is located above the jack, a slot communicated with the jack is arranged in the middle of the locking seat, the locking piece is installed in the slot, the control rod is connected to the locking seat and is used for driving the locking piece to be inserted into or separated from the jack, and when the locking piece is inserted into the jack, the locking piece is used for blocking the sliding piece to move towards the sliding sleeve.
According to the backrest device provided by the embodiment of the first aspect of the utility model, the middle part of the control rod is provided with the lower pressing block, the two ends of the control rod are provided with the grippers, the lower pressing block is abutted against the top of the locking piece, the control rod and the lower pressing block can be driven to rotate by rotating the grippers, and the locking piece is pressed into the jack by the lower pressing block.
According to a second aspect of the utility model there is provided a seat comprising a back rest arrangement according to an embodiment of the first aspect of the utility model.
The seat provided by the embodiment of the second aspect of the utility model has at least the following beneficial effects: when a user sitting on the chair lies down or stretches out of the waist, force acts on the chair back, the chair back can rotate on the support by taking the middle part as a rotating shaft, and the sliding piece below the chair back also slides along the sliding sleeve, so that the chair is more attached to the back of the user, and better supporting force is provided; when the user stands up, the elastic force of the elastic piece acts on the sliding piece, and the sliding piece can be pushed to move along the direction deviating from the sliding sleeve, so that the chair back is driven to reset, and the user experience is improved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
Additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of a backrest device according to an embodiment of a first aspect of the present utility model;
FIG. 2 is an exploded view of a back rest assembly according to an embodiment of the first aspect of the present utility model;
FIG. 3 is a cross-sectional view of a back rest device provided in accordance with an embodiment of the first aspect of the present utility model;
FIG. 4 is an enlarged schematic view of FIG. 3 at A;
FIG. 5 is a schematic structural view of an adjusting assembly and a locking assembly according to an embodiment of the first aspect of the present utility model;
fig. 6 is a schematic structural diagram of a sliding sleeve according to an embodiment of the first aspect of the present utility model.
The reference numerals are as follows:
a bracket 100; a support arm 101; a rotating groove 102; a limit piece 103; chair back 110: a rotation shaft 111; a sliding sleeve 120; a mounting post 121; a slider 130; an elastic member 140; lumbar support 150; a connecting rod 160; a guide sleeve 170; a guide bar 180; a locking assembly 190; a locking seat 191; a locking member 192; a joystick 193; and a pressing block 194.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the related art, the chair back of the chair is usually fixed on the base, and when in-service use, a user lies down or stretches out of the waist, the position of the back of the human body can change, and the chair back fixed on the base can not realize very good support to the back of the user, so that user experience is affected.
In order to solve this problem, the embodiment of the first aspect of the present utility model provides a backrest device, in which the backrest 110 can rotate on the support 100 with the middle portion as the rotation axis 111, and the sliding member 130 under the backrest 110 also slides along the sliding sleeve 120, so that the seat is more attached to the back of the user, and a better supporting force can be provided, which is beneficial to improving the user experience.
Referring to fig. 1 to 5, a reclining device according to an embodiment of a first aspect of the present utility model includes: the support comprises a bracket 100, a support assembly and an adjusting assembly, wherein the support assembly comprises a chair back 110, and two sides of the middle part of the chair back 110 are rotatably connected to the bracket 100; the adjusting assembly comprises a sliding sleeve 120, a sliding piece 130 and an elastic piece 140, wherein the sliding sleeve 120 is hinged to the bracket 100, the opening faces the chair back 110, one end of the sliding piece 130 is inserted into the sliding sleeve 120, the other end of the sliding piece is hinged to the lower end of the chair back 110, the elastic piece 140 is arranged between the sliding sleeve 120 and the sliding piece 130, one end of the elastic piece 140 is connected with the sliding sleeve 120, the other end of the elastic piece 140 is connected with the sliding piece 130, and the elastic piece 140 is used for pushing the sliding piece 130 so as to enable the sliding piece 130 to move towards the direction deviating from the sliding sleeve 120.
When the backrest device provided by the embodiment of the first aspect of the present utility model is applied to a seat, the bracket 100 is connected with the chassis of the seat, and when a user sitting on the seat lies down or stretches out, a force acts on the backrest 110, the backrest 110 rotates on the bracket 100, and the sliding member 130 below the backrest 110 also slides along the sliding sleeve 120, so that the seat is more fitted to the back of the user, and a better supporting force is provided; when the user gets up, the elastic force of the elastic member 140 acts on the sliding member 130 to push the sliding member 130 to move along the direction away from the sliding sleeve 120, thereby driving the chair back 110 to reset, which is beneficial to improving the user experience.
It should be noted that, a guiding mechanism is further disposed between the sliding sleeve 120 and the sliding member 130, the guiding mechanism is used for guiding the sliding member 130 to move towards or away from the sliding sleeve 120, and under the guiding action of the guiding mechanism, the sliding member 130 below the chair back 110 is not easy to deviate along the moving track of the sliding member 130 in the sliding process of the sliding sleeve 120, and the sliding member 130 is not contacted with the sliding sleeve 120, so that noise generated in the sliding process is reduced.
Referring to fig. 3 to 6, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the guide mechanism includes a guide sleeve 170 and a guide rod 180, the guide sleeve 170 is connected to the sliding sleeve 120 and has an opening facing the sliding member 130, the guide sleeve 170 is located at the middle of the sliding sleeve 120, a gap is formed between the guide sleeve 170 and an inner wall of the sliding sleeve 120, one end of the guide rod 180 is connected to the sliding member 130, the other end of the guide rod 180 is inserted into the guide sleeve 170, the guide rod 180 is located at the middle of the sliding member 130, the seat back 110 rotates, the guide rod 180 stretches and contracts in the guide sleeve 170, and because the gap is formed between the guide sleeve 170 and the inner wall of the sliding sleeve 120, the guide rod 180 is located at the middle of the sliding member 130, and the sliding member 130 is not contacted with the sliding sleeve 120 during rotation of the seat back 110, so that noise generated due to contact friction between the sliding member 130 and the sliding sleeve 120 can be avoided.
It is understood that the guide sleeve 170 may be integrally injection molded with the sliding sleeve 120, and the guide rod 180 may be integrally injection molded with the sliding member 130; the positions of the guide sleeve 170 and the guide rod 180 can be exchanged, and the guiding effect can be achieved as well.
Referring to fig. 2 to 4, it should be noted that, when a user sitting on the seat lies down or leans on his/her waist, in the process that the seat back 110 rotates on the support 100 with the middle portion as the rotation axis 111, the elastic force of the elastic member 140 acts on the seat back 110 through the sliding member 130, so as to be converted into a thrust force against the seat back 110, so that the rotation speed of the seat back 110 can be slowed down, and discomfort caused by abrupt rotation of the seat back 110 is prevented; when the user lying down gets up, the reverse thrust of the elastic member 140 acting to the chair back 110 through the sliding member 130 can also play a role in assisting the user in getting up, since the user experience is improved.
Referring to fig. 2 to 4, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the support assembly further includes a lumbar support 150 and a connecting rod 160, the upper end of the lumbar support 150 is hinged to the support 100, one end of the connecting rod 160 is hinged to the lower end of the lumbar support 150, the other end of the connecting rod is hinged to the lower end of the backrest 110, the upper end of the lumbar support 150 can rotate, the lower end can also act along with the rotation of the backrest 110, when a user sits on the seat, the lumbar support 150 can provide a supporting force for the lumbar part of the user, and when the user lies down or stretches out of the waist, the forces of the back and the waist of the user are respectively applied to the backrest 110 and the lumbar support 150, and the lumbar support 150 can adjust an angle accordingly while the backrest 110 rotates on the support 100, so as to better fit the lumbar part of the user, provide a better supporting force for the lumbar part of the user, and is beneficial to improving the experience of the user.
Referring to fig. 2, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the support 100 includes two support arms 101 arranged oppositely, two sides of the lumbar support 150 are hinged to the two support arms 101 respectively, and the lumbar support 150 is connected to the support 100 in a stable and reliable manner.
Referring to fig. 2, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the front sides of the two supporting arms 101 are provided with the rotating grooves 102, the two sides of the middle part of the backrest 110 are provided with the rotating shafts 111, the rotating shafts 111 are inserted into the rotating grooves 102, the supporting arms 101 are connected with the limiting pieces 103 to limit the rotating shafts 111 in the rotating grooves 102, and the backrest 110 and the supporting arms 101 are connected stably and reliably.
It should be noted that, during installation, the rotating shafts 111 on two sides of the chair back 110 are firstly clamped into the rotating groove 102 from the front side, and then the limiting piece 103 is fixed at the opening of the rotating groove 102 by using the fastener, so that the rotating shafts 111 on two sides of the chair back 110 are limited in the rotating groove 102 of the supporting arm 101, and the installation process is simple and quick.
Referring to fig. 5 and 6, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the adjusting assembly includes two elastic members 140, the two elastic members 140 are respectively disposed on two sides of the sliding sleeve 120, when a user sitting on the seat lies down or stretches out of the waist, the elastic force of the two elastic members 140 can act on the seat through the sliding member 130 at the same time, the rotating speed of the backrest 110 can be effectively slowed down, and the lying user rises, and the elastic force provided by the two elastic members 140 acts on the backrest 110 through the sliding member 130 at the same time, so that a larger thrust force can be provided, which is beneficial to assisting the user in rising.
By arranging the two elastic members 140 on both sides of the guide mechanism, the guide mechanism can guide the elastic members 140 while guiding the sliding member 130 to move toward or away from the sliding sleeve 120, so that the acting force of the elastic members 140 can act on the sliding member 130 well.
Referring to fig. 6, according to the back rest device provided by the embodiment of the first aspect of the present utility model, the elastic member 140 is a spring, the sliding sleeve 120 and the sliding member 130 are provided with mounting posts 121, two ends of the spring are respectively sleeved on the mounting posts 121, and when the chair back 110 rotates and stretches, two ends of the spring are not easy to fall off, and the installation of the spring is stable and reliable.
It should be noted that, the elastic member 140 may also be an elastic rubber sleeve, a torsion spring, etc., and when the elastic member 140 is a torsion spring, the connection between the elastic member 140 and the sliding sleeve 120 and the connection between the elastic member 140 and the sliding member 130 are technical means that can be used by those skilled in the art, and will not be described herein.
Referring to fig. 2, 4 and 5, the backrest device according to the first aspect of the present utility model further includes a locking assembly 190, where the locking assembly 190 is located above the sliding sleeve 120 to lock the sliding member 130, a user can control the locking assembly 190 to lock or unlock the sliding member 130, when the locking assembly 190 locks the sliding member 130, the sliding member 130 cannot slide toward the sliding sleeve 120, the backrest 110 is locked, and the backrest 110 is not rotated when the user leans against the backrest 110; when the locking assembly 190 releases the locking of the slider 130, the seat back 110 can normally rotate; the user can adjust the locking assembly 190 according to the use requirement, so that the use requirement of different scenes of the user can be met.
Referring to fig. 4 and 5, according to the back rest device provided by the embodiment of the first aspect of the present utility model, the locking assembly 190 includes a locking seat 191, a locking member 192 and a control lever 193, the upper side of the sliding sleeve 120 is provided with a jack, the locking seat 191 is connected to the sliding sleeve 120 and is located above the jack, the middle part of the locking seat 191 is provided with a slot communicating with the jack, the locking member 192 is installed in the slot, the control lever 193 is connected to the locking seat 191 and is used for driving the locking member 192 to insert into or leave the jack, when the locking member 192 is inserted into the jack, the locking member 192 can block the end of the sliding member 130 so as to block the sliding member 130 from moving towards the sliding sleeve 120, thereby realizing the function of locking the sliding member 130.
Referring to fig. 4 and 5, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the middle part of the control rod 193 is provided with the lower pressing block 194, the two ends are provided with the grippers, the lower pressing block 194 is abutted to the top of the locking member 192, the control rod 193 and the lower pressing block 194 can be driven to rotate by rotating the grippers, the locking member 192 is pressed into the jack by the lower pressing block 194, and in the use process of a user, the lower pressing block 194 can be driven to rotate only by rotating the grippers, so that the locking member 192 locks the sliding member 130, and the operation is simple and convenient.
It should be noted that, the pressing block 194 of the control rod 193 and the locking piece 192 may be fixedly connected, and the locking piece 192 may be directly driven to be inserted into or separated from the slot by the control rod 193; alternatively, the lower pressing block 194 of the control rod 193 and the locking piece 192 are two independent components, and a spring for pushing the locking piece 192 to leave the jack at the top of the sliding sleeve 120 is further arranged in the slot of the locking seat 191.
According to a second aspect of the utility model there is provided a seat comprising a back rest arrangement as in the first aspect of the utility model.
According to the seat provided by the embodiment of the second aspect of the present utility model, when a user sitting on the seat lies down or is out of waist, a force acts on the seat back 110, the seat back 110 can rotate on the support 100 with the middle portion as the rotation shaft 111, and the sliding member 130 under the seat back 110 also slides along the sliding sleeve 120, so that the seat is more fitted to the back of the user, and a better supporting force is provided; when the user gets up, the elastic force of the elastic member 140 acts on the sliding member 130 to push the sliding member 130 to move along the direction away from the sliding sleeve 120, thereby driving the chair back 110 to reset, which is beneficial to improving the user experience.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, and the embodiments are only for illustrating the technical scheme of the present utility model, but not for limiting the same, and the present utility model is not limited to the embodiments, and various changes can be made without departing from the spirit of the present utility model within the knowledge of those skilled in the art.

Claims (10)

1. A reclining device, comprising:
a bracket;
the support assembly comprises a chair back, and the middle part of the chair back is rotationally connected with the bracket;
the adjusting assembly comprises a sliding sleeve, a sliding piece and an elastic piece, wherein the sliding sleeve is hinged to the support, one end of the sliding piece is inserted into the sliding sleeve, the other end of the sliding piece is hinged to the lower end of the chair back, the elastic piece is arranged between the sliding sleeve and the sliding piece, the sliding piece can move towards or away from the sliding sleeve, and the elastic piece is used for pushing the sliding piece to enable the sliding piece to move towards the direction away from the sliding sleeve.
2. The reclining device of claim 1, wherein the support assembly further comprises a lumbar support and a connecting rod, an upper end of the lumbar support being hinged to the bracket, one end of the connecting rod being hinged to a lower end of the lumbar support, and the other end being hinged to a lower end of the seatback.
3. The reclining device according to claim 2, wherein the bracket includes two support arms disposed opposite each other, and both sides of the lumbar support are hinged to the two support arms, respectively.
4. A backrest device according to claim 3, wherein two of the support arms are provided with a rotation groove, the two sides of the middle of the backrest are provided with rotating shafts, the rotating shafts are inserted into the rotation groove, and the support arms are connected with limiting pieces to limit the rotating shafts in the rotation groove.
5. The reclining device of claim 1, wherein said adjustment assembly includes two of said resilient members, said resilient members being disposed on opposite sides of said sliding sleeve.
6. The reclining device of claim 5, wherein the elastic member is a spring, the sliding sleeve and the sliding member are provided with mounting posts, and two ends of the spring are respectively sleeved on the mounting posts.
7. The reclining device of claim 1, further comprising a locking assembly located above the sliding sleeve for locking the slider.
8. The reclining device of claim 7, wherein the locking assembly comprises a locking seat, a locking member and a control rod, a jack is disposed on the upper side of the sliding sleeve, the locking seat is connected to the sliding sleeve and located above the jack, a slot communicating with the jack is disposed in the middle of the locking seat, the locking member is mounted in the slot, the control rod is connected to the locking seat and used for driving the locking member to insert into or leave from the jack, and when the locking member is inserted into the jack, the locking member is used for blocking the sliding member from moving towards the sliding sleeve.
9. The reclining device of claim 8, wherein a lower pressing block is disposed in the middle of the operating rod, two ends of the operating rod are provided with grippers, the lower pressing block abuts against the top of the locking piece, the operating rod and the lower pressing block can be driven to rotate by rotating the grippers, and the locking piece is pressed into the jack by the lower pressing block.
10. A seat comprising a backrest device as claimed in any one of claims 1 to 9.
CN202322334213.5U 2023-08-29 2023-08-29 Backrest device and seat Active CN220734905U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322334213.5U CN220734905U (en) 2023-08-29 2023-08-29 Backrest device and seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322334213.5U CN220734905U (en) 2023-08-29 2023-08-29 Backrest device and seat

Publications (1)

Publication Number Publication Date
CN220734905U true CN220734905U (en) 2024-04-09

Family

ID=90556808

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322334213.5U Active CN220734905U (en) 2023-08-29 2023-08-29 Backrest device and seat

Country Status (1)

Country Link
CN (1) CN220734905U (en)

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Address after: No. 3 Tandong Avenue, Dongyong Community, Longjiang Town, Shunde District, Foshan City, Guangdong Province (Jingyi Smart Home Industry Park)

Patentee after: Guangdong Jingyi Furniture Co.,Ltd.

Country or region after: China

Address before: 528318 Foshan, Shunde, Guangdong province Longjiang Town, 8 West Road.

Patentee before: FOSHAN SITZONE FURNITURE Co.,Ltd.

Country or region before: China

CP03 Change of name, title or address