CN112244552A - Ottoman linkage device, frame body and seat - Google Patents
Ottoman linkage device, frame body and seat Download PDFInfo
- Publication number
- CN112244552A CN112244552A CN202011301484.5A CN202011301484A CN112244552A CN 112244552 A CN112244552 A CN 112244552A CN 202011301484 A CN202011301484 A CN 202011301484A CN 112244552 A CN112244552 A CN 112244552A
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- China
- Prior art keywords
- ottoman
- connecting rod
- link
- support
- hinged
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- Legal status (The legal status 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 status listed.)
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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
- 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
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Passenger Equipment (AREA)
Abstract
The invention discloses an ottoman linkage device, a frame body and a seat, and belongs to the technical field of seats. The invention discloses an ottoman linkage device which comprises an upper connecting rod, a lower connecting rod, a middle ottoman connecting rod, a first front ottoman connecting rod, a second front ottoman connecting rod, a first connecting rod, a second connecting rod, a front ottoman support and a middle ottoman support, wherein the upper connecting rod or the lower connecting rod can rotate under the driving of driving force so as to enable the ottoman linkage device to be unfolded or folded. Can adjust the drive power size of first connecting rod through the length that changes first connecting rod and second connecting rod, adopt split type first preceding ottoman connecting rod and the second preceding ottoman connecting rod, the length of ottoman connecting rod can increase before the second to connect the connecting rod cooperation with first connecting rod and second, make the small quadrangle deformation range bigger, still can not influence middle ottoman support action simultaneously, and then can increase the interval between preceding ottoman support and the middle ottoman support.
Description
Technical Field
The invention relates to the technical field of seats, in particular to an ottoman linkage device, a frame body and a seat.
Background
Many seats on the market at present include the telescopic pad of lying, and the pad of lying is expanded and can be supplied people to lie and take a rest, and the pad of lying is drawn in and can be used as normal seat. However, due to the structural limitation of these chairs, the distance between the footrest and the lying cushion is fixed, and thus these chairs are not suitable for people with different heights. And the driving force for unfolding the seats is fixed and cannot be adjusted, so that the problem that the lying cushion is not smoothly stretched frequently occurs.
Disclosure of Invention
A first object of the present invention is to provide an ottoman linkage that increases the distance between a front ottoman support and a middle ottoman support, and that allows the driving force for the front ottoman support and the middle ottoman support to expand to be adjusted.
The second objective of the present invention is to provide a frame body, which can be extended and retracted more smoothly by using the above ottoman linkage device, so as to expand the applicable scope of the frame body.
The third purpose of the invention is to provide a seat, which improves the comfort of use and enlarges the application range of the seat by applying the frame body.
In order to realize the purpose, the following technical scheme is provided:
in a first aspect, an ottoman linkage is provided, comprising an upper link, a lower link, a middle ottoman link, a first front ottoman link, a second front ottoman link, a first connecting link, a second connecting link, a front ottoman support, and a middle ottoman support, the lower connecting rod and the middle ottoman connecting rod are sequentially hinged with the middle ottoman support, the upper connecting rod and the first front ottoman connecting rod are sequentially hinged with the middle ottoman support, the middle ottoman connecting rod is hinged with the upper connecting rod, the second front ottoman connecting rod is hinged between the first front ottoman connecting rod and the front ottoman support, the first connecting rod is hinged with the second connecting rod, and the first connecting rod and the second connecting rod are respectively hinged with the front ottoman support and the first front ottoman connecting rod, and the middle ottoman support is hinged with the first connecting rod.
As a preferred aspect of the ottoman linkage, one end of the intermediate ottoman support is hinged to the first connecting link, and the other end is provided with a lying pad attachment platform.
Preferably, the front ottoman support is hinged at one end to the second front ottoman link and at the other end to a front ottoman pad attachment platform.
As a preferred version of the ottoman linkage, the recliner attachment platform is horizontally flush with the front ottoman pad attachment platform when the ottoman linkage is deployed;
when the ottoman linkage is closed, the recliner attachment platform is vertically flush with the front ottoman pad attachment platform.
As a preferred aspect of the ottoman linkage, the hinge point of the second front ottoman link with the front ottoman bracket is at a lower height than the top of the mattress attachment platform.
As a preferred embodiment of the ottoman linkage device, one end of the first front ottoman link is hinged to the upper link, the other end of the first front ottoman link is hinged to the middle ottoman support, and a hinge point of the second front ottoman link and the first front ottoman link is located between hinge points at two ends of the first front ottoman link.
As a preferred embodiment of the ottoman linkage device, one end of the first connecting link is hinged to the front ottoman support, the other end of the first connecting link is hinged to the second connecting link, and a hinge point of the middle ottoman support and the first connecting link is located between hinge points at two ends of the first connecting link.
As a preferred embodiment of the ottoman linkage device, the upper link or the lower link may be driven by a driving force to rotate and may drive the middle ottoman link, the first front ottoman link, the second front ottoman link, the first connecting link, the second connecting link, the front ottoman support, and the middle ottoman support to be linked, so that the ottoman linkage device is unfolded or folded.
In a second aspect, a frame is provided, comprising a fixed assembly, a movable link assembly and an ottoman linkage as described above, the movable link assembly being connected to the fixed assembly, the ottoman linkage being hinged to the movable link assembly.
In a third aspect, a seat is provided, which comprises the frame body as described above.
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses an ottoman linkage device which comprises an upper connecting rod, a lower connecting rod, a middle ottoman connecting rod, a first front ottoman connecting rod, a second front ottoman connecting rod, a first connecting rod, a second connecting rod, a front ottoman support and a middle ottoman support. Wherein the first preceding ottoman connecting rod, middle ottoman support, middle ottoman connecting rod and last connecting rod form big quadrangle, the ottoman connecting rod before the second, preceding ottoman support, first connecting rod and second are connected the connecting rod and are formed little quadrangle, when drive power passes through linkage connecting rod transmission to middle ottoman support, for middle ottoman support, the first preceding ottoman connecting rod is the driving part, and connect connecting rod and the linkage of first connecting rod through the second, thereby make first connecting rod become the driving part in the little quadrangle structure, the action of ottoman support before the drive, the ottoman connecting rod is the follower before the second, can adjust the drive power size of first connecting rod through the length that changes first connecting rod and second connecting rod, make the ottoman aggregate unit flexible more smooth and easy. Adopt split type bench connecting rod before first and bench connecting rod and the second, the length of bench connecting rod can increase before the second to connect the connecting rod cooperation with first connecting rod and second, make little tetragonal deformation range bigger, still can not influence middle bench support action simultaneously, and then can increase the interval between preceding bench support and the middle bench support, enlarge bench aggregate unit's application scope.
According to the frame body, the ottoman linkage device is applied, so that the frame body can stretch more smoothly, and the application range of the frame body is expanded.
According to the seat, by applying the frame body, the use comfort is improved, and the application range of the seat is expanded.
Drawings
FIG. 1 is a schematic illustration of an ottoman linkage according to an embodiment of the present invention;
FIG. 2 is a schematic view of the frame structure of the ottoman linkage in an extended configuration in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of the semi-extended frame of the ottoman linkage in accordance with an embodiment of the present invention;
fig. 4 is a frame structure of the ottoman linkage according to an embodiment of the present invention when collapsed.
Reference numerals:
100. a frame body; 101. a fixing assembly; 102. a movable link assembly; 1. an upper connecting rod; 2. a lower connecting rod; 3. a middle ottoman link; 4. a first front ottoman link; 5. a second front ottoman link; 6. a first connecting link; 7. a second connecting link; 8. a front ottoman support; 81. a front ottoman pad attachment platform; 9. a middle ottoman support; 91. a mattress attachment platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1-4, the present embodiment provides an ottoman linkage device, including an upper link 1, a lower link 2, a middle ottoman link 3, a first front ottoman link 4, a second front ottoman link 5, a first connection link 6, a second connection link 7, a front ottoman support 8, and a middle ottoman support 9, where the lower link 2, the middle ottoman link 3 and the middle ottoman support 9 are sequentially hinged, the upper link 1, the first front ottoman link 4 and the middle ottoman support 9 are sequentially hinged, the middle ottoman link 3 is hinged to the upper link 1, the second front ottoman link 5 is hinged between the first front ottoman link 4 and the front ottoman support 8, the first connection link 6 is hinged to the second connection link 7, the first connecting rod 6 and the second connecting rod 7 are respectively hinged with the front ottoman support 8 and the first front ottoman connecting rod 4, and the middle ottoman support 9 is hinged with the first connecting rod 6; the upper link 1 or the lower link 2 can be driven by a driving force to rotate, and can drive the middle ottoman link 3, the first front ottoman link 4, the second front ottoman link 5, the first connecting link 6, the second connecting link 7, the front ottoman support 8 and the middle ottoman support 9 to be linked, so that the ottoman linkage device can be unfolded or folded.
Wherein, the one end of ottoman connecting rod 4 is articulated with last connecting rod 1 before first, and the other end is articulated with middle ottoman support 9, and the pin joint of ottoman connecting rod 5 before the second and first ottoman connecting rod 4 is located between the pin joint at the both ends of first preceding ottoman connecting rod 4. One end of the first connecting link 6 is hinged to the front ottoman support 8, the other end of the first connecting link is hinged to the second connecting link 7, and the hinge point of the middle ottoman support 9 and the first connecting link 6 is located between the hinge points at the two ends of the first connecting link 6.
Specifically, one end of the middle ottoman connecting rod 3 is hinged to the lower connecting rod 2 through a hinge point a, the other end of the middle ottoman connecting rod is hinged to the middle ottoman support 9 through a hinge point b, one end of the first front ottoman connecting rod 4 is hinged to the upper connecting rod 1 through a hinge point c, the other end of the first front ottoman connecting rod is hinged to the middle ottoman support 9 through a hinge point d, and the middle ottoman connecting rod 3 is further hinged to the upper connecting rod 1 through a hinge point e. One end of the second front ottoman connecting rod 5 is hinged to the first front ottoman connecting rod 4 through a hinge point f, and the other end of the second front ottoman connecting rod is hinged to the front ottoman support 8 through a hinge point g. One end of the first connecting rod 6 is hinged to the front ottoman support 8 through a hinge point h, the other end of the first connecting rod is hinged to one end of the second connecting rod 7 through a hinge point i, the other end of the second connecting rod 7 is hinged to the first front ottoman connecting rod 4 through a hinge point j, the hinge point f is located between a hinge point d and the hinge point j, one end of the middle ottoman support 9 is hinged to the first connecting rod 6 through a hinge point k, and the hinge point k is located between the hinge point h and the hinge point i. It will be appreciated that the articulation points between the links of the ottoman linkage may take various forms, such as, for example, pins, rivets, bearings, or bolt and nut combinations; any other suitable form of connection known in the furniture making industry may also be used.
Further, the first front ottoman link 4, the middle ottoman support 9, the middle ottoman link 3 and the upper link 1 form a large quadrilateral, and may also be understood as a four-link mechanism in which links between the hinge points b, d, c and e form a large quadrilateral structure, the second front ottoman link 5, the front ottoman support 8, the first connecting link 6 and the second connecting link 7 form a small quadrilateral, and may also be understood as a four-link mechanism in which links between the hinge points f, g, h and i form a small quadrilateral structure. In this embodiment, the driving part of big quadrangle structure is upper connecting rod 1, when drive power passes through linkage connecting rod transmission to middle ottoman support 9, for middle ottoman support 9, first preceding ottoman connecting rod 4 is the driving part, and link through second connecting rod 7 and first connecting rod 6, thereby make first connecting rod 6 become the driving part in the little quadrangle structure, ottoman support 8 moves before the drive, ottoman connecting rod 5 is the follower before the second, the drive power size of first connecting rod 6 can be adjusted through the length that changes first connecting rod 6 and second connecting rod 7, make the flexible more smooth and easy of ottoman aggregate unit. Adopt split type first preceding ottoman connecting rod 4 and the second preceding ottoman connecting rod 5, ottoman connecting rod 5's length can increase before the second to connect connecting rod 7 cooperation with first connecting rod 6 and second, make little quadrilateral structure's deformation range bigger, ottoman support 9 action in the middle of still can not influencing simultaneously, and then can increase preceding ottoman support 8 and the interval between the middle ottoman support 9, enlarge ottoman aggregate unit's application scope. Further, the hinge point of the second front ottoman link 5 with the front ottoman bracket 8 is at a lower height than the top of the mattress attachment platform 91. The highest point of the movement locus of the hinge point g cannot exceed the table top of the lying cushion attachment platform 91, so that the highest point of the movement locus of the hinge point g cannot interfere with the lying cushion attachment platform 91, and normal action of the ottoman linkage device is guaranteed.
Optionally, one end of the intermediate ottoman support 9 is hinged with the first connecting link 6 and the other end is provided with a lying pad attachment platform 91. Further, one end of the front ottoman bracket 8 is hinged with the second front ottoman link 5, and the other end is provided with a front ottoman pad attachment platform 81. In the present embodiment, the intermediate ottoman support 9 and the front ottoman support 8 are both of a generally L-shaped configuration. In other embodiments, the middle ottoman support 9 and the front ottoman support 8 may also be in a V-shaped or arc-shaped configuration.
Further, when the ottoman linkage is in the deployed position, the lying pad attachment platform 91 is horizontally flush with the front ottoman pad attachment platform 81; the couch attachment platform 91 is vertically flush with the front ottoman pad attachment platform 81 when the ottoman linkage is in the stowed position. It will be understood that a horizontal direction is a direction parallel to the horizontal plane, and a vertical direction is a direction perpendicular to the horizontal direction.
The present embodiment also provides a frame, as shown in fig. 3-4, comprising a fixed assembly 101, a movable link assembly 102 and an ottoman linkage as described above, the movable link assembly 102 being connected to the fixed assembly 101, the ottoman linkage being hinged to the movable link assembly 102, i.e. by hinging the free ends of the upper and lower links 1, 2 to the movable link assembly 102. In this embodiment, the ottoman linkages are provided in two, generally side-to-side symmetrical arrangements to provide more stable support. In other embodiments, the ottoman linkage can be set to one, three, four or even more, and the specific number of applications can be selected according to requirements.
Specifically, when the ottoman linkage is in the deployed position, the lying pad attachment platform 91 is horizontally flush with the front ottoman pad attachment platform 81 to facilitate lying by the user; when the ottoman linkage is in the stowed position, the lounge pad attachment platform 91 is vertically flush with the front ottoman pad attachment platform 81 and abuts one side of the frame 100 to provide more room for the legs and feet.
In this embodiment, the structure of the frame 100 is not the main point of the present invention, and the frame 100 may be a frame 100 that is conventional in the art, and the structure thereof is not described herein again.
The embodiment also provides a seat, which comprises the frame body 100. In this embodiment, the frame 100 is applied to a seat, and the seat may be a sofa seat, a high-speed rail seat, or an airplane seat, which is applied to any suitable occasion. In other embodiments, the seat may also be a lounge chair or the like for resting.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An ottoman linkage device, characterized by comprising an upper connecting rod (1), a lower connecting rod (2), a middle ottoman connecting rod (3), a first front ottoman connecting rod (4), a second front ottoman connecting rod (5), a first connecting rod (6), a second connecting rod (7), a front ottoman support (8) and a middle ottoman support (9), wherein the lower connecting rod (2), the middle ottoman connecting rod (3) and the middle ottoman support (9) are sequentially hinged, the upper connecting rod (1), the first front ottoman connecting rod (4) and the middle ottoman support (9) are sequentially hinged, the middle ottoman connecting rod (3) is hinged with the upper connecting rod (1), the second front ottoman connecting rod (5) is hinged between the first front ottoman connecting rod (4) and the front ottoman support (8), the first connecting rod (6) is hinged with the second connecting rod (7), and first connecting rod (6) with second connecting rod (7) respectively with preceding ottoman support (8) with first preceding ottoman connecting rod (4) are articulated, middle ottoman support (9) with first connecting rod (6) are articulated.
2. The ottoman linkage according to claim 2, characterized in that the intermediate ottoman support (9) is hinged at one end to the first connecting link (6) and at the other end is provided with a lying pad attachment platform (91).
3. The ottoman linkage according to claim 2, characterized in that the front ottoman support (8) is hinged at one end to the second front ottoman link (5) and at the other end is provided with a front ottoman pad attachment platform (81).
4. The ottoman linkage according to claim 3, wherein the recliner attachment platform (91) is horizontally flush with the front ottoman pad attachment platform (81) when the ottoman linkage is deployed;
when the ottoman linkage is closed, the lounge pad attachment platform (91) is vertically flush with the front ottoman pad attachment platform (81).
5. The ottoman linkage according to claim 2, characterized in that the hinge point of the second front ottoman link (5) with the front ottoman bracket (8) is at a lower height than the top of the lying pad attachment platform (91).
6. The ottoman linkage according to claim 1, characterized in that the first front ottoman link (4) is articulated with the upper link (1) at one end and with the intermediate ottoman support (9) at the other end, and in that the articulation point of the second front ottoman link (5) with the first front ottoman link (4) is located between the articulation points of the two ends of the first front ottoman link (4).
7. The ottoman linkage according to claim 1, characterized in that the first connecting link (6) is articulated at one end to the front ottoman support (8) and at the other end to the second connecting link (7), the articulation point of the intermediate ottoman support (9) to the first connecting link (6) being located between the articulation points of the two ends of the first connecting link (6).
8. The ottoman linkage according to any one of claims 1 to 7, characterized in that the upper link (1) or the lower link (2) is rotatable under drive of a drive force and is capable of bringing the intermediate ottoman link (3), the first front ottoman link (4), the second front ottoman link (5), the first connecting link (6), the second connecting link (7), the front ottoman support (8) and the intermediate ottoman support (9) into linkage for unfolding or folding the ottoman linkage.
9. A frame, characterized by comprising a fixed assembly (101), a movable connecting-rod assembly (102) and an ottoman linkage according to any one of claims 1 to 8, the movable connecting-rod assembly (102) being connected to the fixed assembly (101), the ottoman linkage being hinged to the movable connecting-rod assembly (102).
10. A seat, comprising a frame (100) according to claim 9.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011301484.5A CN112244552A (en) | 2020-11-19 | 2020-11-19 | Ottoman linkage device, frame body and seat |
| PCT/CN2021/128839 WO2022105618A1 (en) | 2020-11-19 | 2021-11-05 | Ottoman linkage device, frame body, and seat |
| US18/034,148 US20230380597A1 (en) | 2020-11-19 | 2021-11-05 | Ottoman linkage device, frame body, and seat |
| EP21893765.4A EP4212067A4 (en) | 2020-11-19 | 2021-11-05 | Ottoman linkage device, frame body, and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011301484.5A CN112244552A (en) | 2020-11-19 | 2020-11-19 | Ottoman linkage device, frame body and seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112244552A true CN112244552A (en) | 2021-01-22 |
Family
ID=74266303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011301484.5A Pending CN112244552A (en) | 2020-11-19 | 2020-11-19 | Ottoman linkage device, frame body and seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112244552A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022105618A1 (en) * | 2020-11-19 | 2022-05-27 | 德沃康科技集团有限公司 | Ottoman linkage device, frame body, and seat |
| WO2022188631A1 (en) * | 2021-03-11 | 2022-09-15 | 德沃康科技集团有限公司 | Chair support for elderly and chair for elderly |
-
2020
- 2020-11-19 CN CN202011301484.5A patent/CN112244552A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022105618A1 (en) * | 2020-11-19 | 2022-05-27 | 德沃康科技集团有限公司 | Ottoman linkage device, frame body, and seat |
| WO2022188631A1 (en) * | 2021-03-11 | 2022-09-15 | 德沃康科技集团有限公司 | Chair support for elderly and chair for elderly |
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