CN216494400U - Furniture with adjustable angle of backrest - Google Patents
Furniture with adjustable angle of backrest Download PDFInfo
- Publication number
- CN216494400U CN216494400U CN202123350135.5U CN202123350135U CN216494400U CN 216494400 U CN216494400 U CN 216494400U CN 202123350135 U CN202123350135 U CN 202123350135U CN 216494400 U CN216494400 U CN 216494400U
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- backrest
- angle
- furniture
- connecting portion
- adjustable
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- 230000001154 acute effect Effects 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000036544 posture Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of household articles, and particularly discloses furniture with an adjustable backrest angle, which comprises a sitting part, a backrest part and a hinge mechanism, wherein the backrest part comprises a backrest and a backrest seat; wherein the hinge mechanism is configured to: connecting the seating portion and the back portion such that the angle of inclination of the back portion is adjustable. The utility model provides furniture with an adjustable backrest angle, which can effectively solve the problem that the inclination angle of the traditional backrest part cannot be adjusted.
Description
Technical Field
The utility model relates to the technical field of household articles, in particular to furniture with an adjustable backrest angle.
Background
Common furniture such as bed frames, sofas or chairs are provided with a seating portion for seating a user and a backrest portion for a backrest of the user. The user is easy to feel tired after keeping one sitting posture for a long time, so that the user needs to change different sitting postures sometimes, theoretically, the backrest part should be correspondingly changed in angle so as to be perfectly attached to the back of the human body, and good support is further provided. In fact, the backrest portion is fixed to the seat portion and the inclination of the backrest portion cannot be adjusted.
Therefore, there is a need for an improved backrest furniture to solve the problem that the inclination angle of the backrest part cannot be adjusted.
The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is currently known to one of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
One object of the present invention is to provide a piece of furniture with an adjustable backrest angle, which can effectively solve the problem that the inclination angle of the traditional backrest part cannot be adjusted.
In order to achieve the above purposes, the utility model provides furniture with an adjustable backrest angle, which comprises a sitting part, a backrest part and a hinge mechanism; wherein,
the hinge mechanism is configured to: connecting the seating portion and the back portion such that the angle of inclination of the back portion is adjustable.
Optionally, the hinge mechanism includes a first connecting portion, a second connecting portion, a third connecting portion and a fourth connecting portion that are sequentially hinged and form a quadrilateral structure;
wherein the first connecting portion is fixedly connected to the seating portion, and the third connecting portion is fixedly connected to the backrest portion.
Optionally, a drawstring is arranged at the backrest part.
Optionally, when the backrest portion is in the folded extreme position, the third connecting portion and the fourth connecting portion are collinear, and the first connecting portion, the second connecting portion, the third connecting portion and the fourth connecting portion present a triangular structure.
Optionally, when the backrest portion is located at an extended limit position, an included angle between the first connecting portion and the second connecting portion is an acute angle, an included angle between the second connecting portion and the third connecting portion is an obtuse angle, an included angle between the third connecting portion and the fourth connecting portion is an acute angle, and an included angle between the fourth connecting portion and the first connecting portion is an obtuse angle.
Optionally, the first connecting portion is connected with a limiting portion protruding towards the inside of the quadrilateral structure;
when the backrest part is in the extended limit position, the limiting part is abutted against the second connecting part from inside to outside so as to limit the second connecting part to continue rotating towards the direction close to the first connecting part.
Optionally, two adjacent connecting portions of the first connecting portion, the second connecting portion, the third connecting portion, and the fourth connecting portion constitute a group of adjacent side assemblies, and an angle adjuster for maintaining the stability of the quadrilateral structure is arranged between the two connecting portions of at least one group of adjacent side assemblies.
Optionally, the angle adjuster is arranged between the first connecting portion and the fourth connecting portion.
Optionally, the plane connecting the seating portion and the backrest portion is an inclined plane inclined upward toward the back of the backrest portion.
Optionally, the furniture with the adjustable backrest angle is a bed frame, a sofa or a chair.
The utility model has the beneficial effects that: the furniture with the adjustable backrest angle is characterized in that a hinge mechanism is additionally arranged between a sitting part and a backrest part, so that the inclination angle of the backrest part is adjustable, and the problem that the inclination angle of the traditional backrest part cannot be adjusted is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of an embodiment of furniture having an adjustable backrest angle with a backrest portion in a closed extreme position;
FIG. 2 is a schematic structural view of the hinge mechanism of the back rest position in the closed extreme position according to the embodiment;
FIG. 3 is a schematic view of an embodiment of furniture with adjustable backrest angle provided in an extended extreme position of the backrest portion;
figure 4 is a schematic view of the hinge mechanism of the embodiment provided with the backrest part in the extended extreme position.
In the figure:
1. a seating portion; 101. an inclined surface;
2. a backrest portion; 201. pulling the belt;
3. a hinge mechanism;
301. a first connection portion;
302. a second connecting portion;
303. a third connecting portion;
304. a fourth connecting portion;
305. a fixing hole;
306. a limiting part;
307. an angle adjuster.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
The utility model provides furniture with an adjustable backrest angle, such as a bed frame, a sofa or a chair, and the furniture is additionally provided with a hinge mechanism between a sitting part and a backrest part, so that the inclination angle of the backrest part can be adjusted, and the problem that the inclination angle of the traditional backrest part cannot be adjusted is solved.
Referring to fig. 1 to 4, in the present embodiment, the furniture with an adjustable backrest angle includes a sitting portion 1, a backrest portion 2, and a hinge mechanism 3. Wherein the hinge mechanism 3 is configured to: the seat portion 1 and the backrest portion 2 are connected such that the inclination angle of the backrest portion 2 is adjustable.
Specifically, the hinge mechanism 3 includes a first connecting portion 301, a second connecting portion 302, a third connecting portion 303, and a fourth connecting portion 304 that are hinged in this order and form a quadrangular structure; the first connection portion 301 is fixedly connected to the seating portion 1, and the third connection portion 303 is fixedly connected to the backrest portion 2. Further, the first connecting portion 301 and the third connecting portion 303 are each provided at an intermediate position thereof with a fixing hole 305 through which a fastener such as a bolt or a staple is passed so as to fix the first connecting portion 301 to the seating portion 1 and the third connecting portion 303 to the backrest portion 2.
Optionally, the backrest region 2 is provided with a pull strap 201 to pull the backrest region 2 out of the folded position to the extended position. It should be noted that the closer the backrest 2 is to the extreme position of the folded state, the more the backrest 2 tends to be upright, and is suitable for a correct sitting posture; the closer the backrest portion 2 is to the extreme position of the extended state, the more the backrest portion 2 tends to be horizontal, suitable for a reclined sitting posture.
In this embodiment, the connection plane between the seat portion 1 and the backrest portion 2 is an inclined plane 101 inclined upward toward the back surface of the backrest portion 2, so that when the pull strap 201 is pulled out, the lower portion of the backrest portion 2 can be raised forward and upward (and the upper portion of the backrest portion 2 can be lowered backward and downward). When the folding state needs to be recovered, the backrest part 2 can be rotated to be abutted against the sitting part 1 by pressing down the pressing back part 2, and the folding state is presented.
Referring to figures 1 and 2, when the back portion 2 is in the closed extreme position, the third connecting portion 303 and the fourth connecting portion 304 are co-linear (in a straight line), and the first connecting portion 301, the second connecting portion 302, the third connecting portion 303 and the fourth connecting portion 304 present a triangular configuration. Further, the triangular structure is a right triangle, the first connection portion 301 and the second connection portion 302 are both right-angled sides, and the third connection portion 303 and the fourth connection portion 304 together form a hypotenuse.
Referring to fig. 3 and 4, when the backrest portion 2 is in the extended extreme position, the angle between the first connecting portion 301 and the second connecting portion 302 is acute, the angle between the second connecting portion 302 and the third connecting portion 303 is obtuse, the angle between the third connecting portion 303 and the fourth connecting portion 304 is acute, and the angle between the fourth connecting portion 304 and the first connecting portion 301 is obtuse. Optionally, the lengths of the first connection portion 301 and the second connection portion 302 are equal, the lengths of the third connection portion 303 and the fourth connection portion 304 are equal, and the length of the first connection portion 301 is longer than the length of the third connection portion 303.
Further, the first connecting portion 301 is connected with a limiting portion 306 protruding towards the inside of the quadrilateral structure; when the backrest portion 2 is in the extended limit position, the limiting portion 306 supports the second connecting portion 302 from inside to outside to limit the second connecting portion 302 from continuing to rotate in a direction close to the first connecting portion 301.
It should be noted that, when the backrest portion 2 is at the closed extreme position, the first connecting portion 301, the second connecting portion 302, the third connecting portion 303 and the fourth connecting portion 304 are in a right-angled triangle structure, at this time, the included angle between the first connecting portion 301 and the second connecting portion 302 is a right angle, when the pull belt 201 is pulled outwards, the included angle between the first connecting portion 301 and the second connecting portion 302 becomes smaller and becomes an acute angle, as the pull belt 201 is pulled continuously, the backrest portion 2 becomes flatter and flatter, the included angle between the first connecting portion 301 and the second connecting portion 302 also becomes smaller and smaller, in order to limit the backrest portion 2 to finally become a negative angle (i.e. the front of the backrest portion 2 faces towards the rear), the limiting portion 306 is provided, when the backrest portion 2 reaches a certain angle, the outward extending portion 306 supports the second connecting portion 302 from the inside to the outside, the included angle between the first connecting portion 301 and the second connecting portion 302 cannot become smaller (reaches the minimum), this is the extreme position in which the backrest region 2 protrudes outward.
In this embodiment, two adjacent connection portions of the first connection portion 301, the second connection portion 302, the third connection portion 303, and the fourth connection portion 304 form a group of adjacent side assemblies, an angle adjustment for maintaining the stability of the quadrilateral structure is provided between two connection portions of at least one group of adjacent side assemblies, and after the angle adjuster 307 is provided, a plurality of angles between the minimum value and 90 ° of an included angle between the first connection portion 301 and the second connection portion 302 can be kept stable, so as to increase the adjustable angle of the backrest portion 2.
The angle adjuster 307 may be provided between the first connection portion 301 and the fourth connection portion 304. Of course, the angle adjuster 307 may be provided at other adjacent edge components or the angle adjuster 307 may be provided at a plurality of adjacent edge components, which is not limited by the present invention. It should be noted that the angle adjuster 307 may be a commercially available product, and the specific structure thereof is not the focus of this embodiment, and therefore will not be described herein.
When the seat is installed, a lower nut can be embedded in the inner side of the armrest of the sitting part 1, and then the first connecting part 301 of the hinge mechanism 3 is fixed at the lower nut through a lower bolt and other fasteners;
then, an upper nut is embedded in the side surface of the backrest 2 close to the armrest, and the third connecting part 303 of the hinge mechanism 3 is fixed to the upper nut by a fastening member such as an upper bolt.
So set up and to hide hinge mechanism 3 between handrail and back position 2, when back position 2 was in the extreme position that draws in, with unable hinge mechanism 3 of seeing, and then avoid the impaired problem of the product aesthetic property that hinge mechanism 3 leaks outward and leads to.
The furniture with the adjustable backrest angle provided by the embodiment has the following advantages:
the inclination of the backrest part is adjustable, so that diversified requirements of users can be met, and the user experience is improved;
secondly, a draw belt is arranged, so that the backrest part can be conveniently pulled out;
the backrest part is adjustable in multiple angles between a folded limit position and an extended limit position so as to meet more user requirements;
the hidden design of the hinge mechanism does not influence the appearance of the product.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. Furniture with an adjustable backrest angle is characterized by comprising a sitting part, a backrest part and a hinge mechanism; wherein,
the hinge mechanism is configured to: connecting the seating portion and the back portion such that the angle of inclination of the back portion is adjustable.
2. The furniture with the adjustable backrest angle according to claim 1, wherein the hinge mechanism comprises a first connecting part, a second connecting part, a third connecting part and a fourth connecting part which are hinged in sequence and form a quadrilateral structure;
wherein the first connecting portion is fixedly connected to the seating portion, and the third connecting portion is fixedly connected to the backrest portion.
3. Furniture piece according to claim 2, characterized in that the backrest region is provided with a drawstring.
4. A furniture item according to claim 2 or claim 3, wherein the third and fourth links are co-linear when the backrest region is in the closed extreme position, the first, second, third and fourth links assuming a triangular configuration.
5. A piece of furniture with adjustable backrest angle according to claim 2 or 3, characterized in that when the backrest portion is in the extended extreme position, the angle between the first and second connecting portions is acute, the angle between the second and third connecting portions is obtuse, the angle between the third and fourth connecting portions is acute, and the angle between the fourth and first connecting portions is obtuse.
6. The furniture with the adjustable backrest angle according to claim 5, characterized in that the first connecting part is connected with a limiting part protruding toward the inside of the quadrangular structure;
when the backrest part is in the extended limit position, the limiting part is abutted against the second connecting part from inside to outside so as to limit the second connecting part to continue rotating towards the direction close to the first connecting part.
7. The furniture with the adjustable backrest angle according to claim 2, wherein two adjacent connecting portions of the first connecting portion, the second connecting portion, the third connecting portion and the fourth connecting portion constitute a group of adjacent side assemblies, and an angle adjuster for maintaining the stability of the quadrilateral structure is arranged between the two connecting portions of at least one group of adjacent side assemblies.
8. The furniture piece with the adjustable backrest angle according to claim 7, characterized in that the angle adjuster is provided between the first connecting portion and the fourth connecting portion.
9. The piece of furniture with an adjustable backrest angle of claim 1, wherein the connection plane of the seating portion and the backrest portion is an inclined plane inclined upward toward the back of the backrest portion.
10. Furniture with adjustable backrest angle according to claim 1, characterized in that the furniture with adjustable backrest angle is a bed frame, a sofa or a chair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123350135.5U CN216494400U (en) | 2021-12-28 | 2021-12-28 | Furniture with adjustable angle of backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123350135.5U CN216494400U (en) | 2021-12-28 | 2021-12-28 | Furniture with adjustable angle of backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216494400U true CN216494400U (en) | 2022-05-13 |
Family
ID=81505446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123350135.5U Ceased CN216494400U (en) | 2021-12-28 | 2021-12-28 | Furniture with adjustable angle of backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216494400U (en) |
-
2021
- 2021-12-28 CN CN202123350135.5U patent/CN216494400U/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20230506 Decision number of declaring invalidation: 561336 Granted publication date: 20220513 |
|
| IW01 | Full invalidation of patent right |