A multi-gear adjustable headrest for a sofa

Abstract

This utility model relates to a multi-position adjustable headrest for sofas, comprising: a sofa backrest; a headrest disposed at the top of the sofa backrest; an L-shaped connector, one end of which is fixedly connected to the headrest; and a position adjustment mechanism disposed within the sofa backrest, with the other end of the L-shaped connector connected to the position adjustment mechanism. In the second working position, under the action of the L-shaped connector, the headrest is parallel to the side of the sofa backrest, with a certain gap between them. When the user sits back on the sofa with their head relatively forward, the headrest in the second working position can better conform to the human head. By being parallel to the side of the sofa backrest and maintaining a gap, the headrest can provide effective support for the head, creating a more relaxed and suitable support environment.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a multi-position adjustable headrest for sofas. Background Technology

[0002] In the current sofa design field, headrests are a crucial component for enhancing sofa comfort. With existing technology, most sofa headrests are hinged to the sofa back on one side, allowing the headrest to rotate. The initial intention behind this design was to allow the headrest to adjust to different sitting postures, providing better head support.

[0003] However, in actual use, it was found that this headrest structure has significant problems. Because there is a certain distance between the user's head and torso, headrests with only one side hinged are difficult to fully and flexibly adapt to various postures and head-body positions when adjusted. For example, when the user sits on the sofa at different angles or partially leans on or lies on the sofa, the existing single-sided hinged headrests often cannot be properly adjusted to a position and angle that can provide comfortable support for the head. This results in the head not receiving proper support, causing the neck and back to bear extra pressure, which can easily lead to fatigue and even discomfort in the body after prolonged use.

[0004] This non-ergonomic design not only limits the further improvement of sofa comfort and fails to meet the ever-increasing usage demands of consumers, but also prompts the industry to urgently develop a new, more ergonomic sofa headrest structure to solve the limitations of the existing headrest structure in actual use and provide users with a more comfortable support experience that conforms to the needs of the human body.

[0005] Existing sofa headrests are hinged to the sofa backrest on one side and rotate through the hinge point. However, there is a distance between the user's head and torso. If the headrest is only hinged to the sofa backrest on one side, it does not conform to ergonomics. Therefore, a multi-position adjustable sofa headrest is proposed. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a multi-position adjustable headrest for sofas, which solves the technical problem that existing headrests with single-sided edge hinges are difficult to fully and flexibly adapt to the head-body position relationship of the human body during adjustment.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0010] This utility model embodiment provides a multi-position adjustable headrest for sofas.

[0011] This utility model provides a multi-position adjustable headrest for sofas, comprising:

[0012] Sofa backrest;

[0013] A headrest is placed at the top of the sofa backrest;

[0014] The L-shaped connector is fixedly attached to the headrest at one end.

[0015] The gear adjustment mechanism is located inside the sofa back, and the other end of the L-shaped connector is connected to the gear adjustment mechanism.

[0016] The gear adjustment mechanism changes the working position of the headrest through an L-shaped connector. The first working position is when the top surface of the headrest and the sofa back are on the same plane, and the second working position is when the headrest and the side of the sofa back are parallel, and there is a gap between the headrest and the sofa back.

[0017] Optionally, the gear adjustment mechanism includes:

[0018] Support side panels are fixedly installed inside the sofa backrest;

[0019] The moving track is formed on the supporting side plate;

[0020] The movable rod is slidably installed in the movable track, and the L-shaped connector is fixedly connected to the movable rod.

[0021] A drive assembly, connected to the moving rod, is used to drive the moving rod to rotate after it moves upward.

[0022] Optionally, the moving track includes:

[0023] Vertical rails are installed vertically on the support side plates;

[0024] An arc-shaped track is installed on the supporting side plate, with the bottom end of the arc-shaped track connected to the vertical track, and the top end of the arc-shaped track and the top end of the vertical track on the same plane.

[0025] Optionally, the gear adjustment mechanism also includes:

[0026] The first roller, when the headrest is in the first working position, is rotatably mounted on the top of the moving rod and is rolled within the vertical track.

[0027] The second roller, when the headrest is in the first working position, is rotatably mounted on the bottom end of the moving rod. The second roller is rolled within the vertical and curved tracks.

[0028] When the second roller is within the arc-shaped track, the headrest is in the second working position.

[0029] Optionally, the driving component includes:

[0030] The drive shaft, connected to the motor, is rotatably mounted inside the sofa backrest.

[0031] The drive linkage is located between the drive shaft and the moving rod.

[0032] Optionally, it also includes:

[0033] A locking mechanism, located inside the support side plate, is used to fix the support side plate relative to the moving rod.

[0034] Optionally, the locking mechanism includes:

[0035] The locking plate is slidably installed inside the support side plate;

[0036] The driving component, connected to the locking plate, is used to control the movement of the locking plate toward or away from the moving track.

[0037] Optionally, the locking plate is located on one side of the arc-shaped track, and the drive unit controls the locking plate to move towards or away from the arc-shaped track.

[0038] Optionally, the gear adjustment mechanism includes two sets, which are located on both sides of the sofa back.

[0039] A connecting column is provided between the two gear adjustment mechanisms, and the connecting column is fixedly installed between the moving rods of the two gear adjustment mechanisms.

[0040] (III) Beneficial Effects

[0041] The beneficial effects of this utility model are as follows: The multi-position adjustable headrest for sofas provided in this application embodiment includes a sofa backrest, a headrest, a position adjustment mechanism, and an L-shaped connector. One end of the L-shaped connector is firmly fixed to the headrest, and the other end is connected to the position adjustment mechanism. The position adjustment mechanism can apply force to the headrest through the L-shaped connector, thereby changing the position of the headrest. The position adjustment mechanism is located inside the sofa backrest and, through its connection with the L-shaped connector, enables adjustment of the headrest's working position. The position adjustment mechanism allows the headrest to switch between different working positions. In the second working position... When the L-shaped connector is in place, the headrest is parallel to the side of the sofa backrest with a certain gap between them. When the user sits on the sofa with their head relatively forward, the headrest in the second working position can better fit the human head. By being parallel to the side of the sofa backrest and maintaining a gap, the headrest can provide effective support for the head, creating a more relaxed and suitable support environment. It effectively adapts to the positional differences of the human head and torso in different usage scenarios, solving the problems of inflexible adjustment and non-ergonomic design of existing sofa headrests, and greatly improving the overall comfort and user experience of the sofa product. Attached Figure Description

[0042] Figure 1 This is a three-dimensional sectional view of the second working position of the multi-position adjustable headrest of the sofa according to this utility model.

[0043] Figure 2 This is a three-dimensional structural diagram of the first working position of the multi-position adjustable headrest of the sofa according to this utility model;

[0044] Figure 3 This is a side sectional view of the first working position of the multi-position adjustable headrest of the sofa according to this utility model.

[0045] Figure 4 This is a cross-sectional structural diagram of the supporting side plate of this utility model.

[0046] [Explanation of Labels in the Attached Image]

[0047] 100-Sofa backrest, 200-Headrest, 300-Adjustment mechanism, 400-L-shaped connector, 500-Locking mechanism, 600-Connecting column;

[0048] 310-Support side plate, 320-Moving track, 330-Moving rod, 340-Drive assembly, 350-First roller, 360-Second roller;

[0049] 510 - Locking plate, 520 - Driving component;

[0050] 321 - Vertical track, 322 - Curved track;

[0051] 341 - Drive shaft, 342 - Drive connecting rod. Detailed Implementation

[0052] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper" and "lower" are used interchangeably with... Figure 1 The orientation is used as a reference.

[0053] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0054] like Figures 1 to 4 As shown, this embodiment proposes a multi-position adjustable headrest for a sofa, including: a sofa backrest 100; a headrest 200 disposed on the top of the sofa backrest 100; an L-shaped connector 400, one end of which is fixedly connected to the headrest 200; and a position adjustment mechanism 300 disposed within the sofa backrest 100, with the other end of the L-shaped connector 400 connected to the position adjustment mechanism 300. The position adjustment mechanism 300, through the L-shaped connector 400, changes the working position of the headrest 200. The first working position is when the headrest 200 and the top surface of the sofa backrest 100 are on the same plane; the second working position is when the headrest 200 and the side surface of the sofa backrest 100 are parallel, and a gap exists between the headrest 200 and the sofa backrest 100.

[0055] The multi-position adjustable headrest provided in this embodiment includes a sofa backrest 100, a headrest 200, a position adjustment mechanism 300, and an L-shaped connector 400. The sofa backrest 100 serves as the supporting foundation for the entire device, providing a basis for the installation and positioning of other components. It not only supports the headrest 200 but also comes into direct contact with the back of the user. The headrest 200 directly contacts the user's head, providing support. One end of the L-shaped connector 400 is firmly fixed to the headrest 200, and the other end is connected to the position adjustment mechanism 300. The position adjustment mechanism 300 can apply force to the headrest 200 through the L-shaped connector 400, thereby changing the position of the headrest 200. The position adjustment mechanism 300 is located inside the sofa backrest 100 and, through its connection with the L-shaped connector 400, enables the adjustment of the working position of the headrest 200. The position adjustment mechanism 300 allows the headrest 200 to switch between different working positions.

[0056] When the headrest 200 is in the first working position, it is on the same plane as the top surface of the sofa back 100. For example, when the user wants to sit upright on the sofa back, the headrest is flush with the top surface of the sofa back, without creating additional height obstruction. This provides a relatively flat backrest surface, giving the back and neck natural and continuous support, allowing the user's back to be stably supported in a more relaxed state.

[0057] In the second working position, the headrest 200 is parallel to the side of the sofa backrest 100, and there is a certain gap between them. When the user sits back on the sofa with their head relatively forward, the headrest 200 in the second working position can better fit the human head. By being parallel to the side of the sofa backrest and maintaining a gap, the headrest 200 can provide effective support for the head, creating a more relaxed and suitable support environment for the head. It effectively adapts to the positional differences of the human head and torso in different usage scenarios, solves the problems of inflexible adjustment and non-ergonomic design of existing sofa headrests, and greatly improves the overall comfort and user experience of the sofa product.

[0058] like Figure 1 , Figure 3 and Figure 4 As shown, in some examples, the gear adjustment mechanism 300 includes: a support side plate 310, fixedly installed inside the sofa back 100; a moving track 320, formed on the support side plate 310; a moving rod 330, slidably installed inside the moving track 320; an L-shaped connector 400 fixedly connected to the moving rod 330; and a drive assembly 340, connected to the moving rod 330, for driving the moving rod 330 to rotate after moving upward.

[0059] In this technical solution, the support side plate 310 is fixedly installed inside the sofa back 100, and the moving track 320 is formed on the support side plate 310. It is a path guide component for the sliding of the moving rod 330, making the movement of the moving rod 330 controllable and stable. The moving rod 330 is slidably installed inside the moving track 320 and is fixedly connected to the L-shaped connector 400. The sliding of the moving rod 330 is directly transmitted to the L-shaped connector 400, thereby driving the headrest 200 to change position. Under the constraint of the moving track 320, the moving rod 330 can slide precisely along the prescribed path to achieve smooth adjustment of the headrest position. When the moving rod 330 moves upward inside the moving track 320, it first drives the headrest 200 away from the top surface of the sofa back through the L-shaped connector 400. When the moving rod 330 rotates inside the moving track 320, it can drive the headrest 200 to different working positions, providing a power transmission basis for realizing multi-position adjustment of the headrest.

[0060] The drive assembly 340 is connected to the moving rod 330, which pushes the moving rod 330 to slide upward within the moving track 320. This upward movement changes the height position of the headrest 200, moving it away from the top surface of the sofa back 100. After moving to the appropriate position, the drive assembly 340 further functions, causing the moving rod 330 to rotate, which is transmitted to the headrest 200 through the L-shaped connector 400, thereby enabling the headrest 200 to reach a working position parallel to the side of the sofa back 100.

[0061] like Figures 1 to 4 As shown, in some examples, the moving track 320 includes: a vertical track 321, vertically mounted on the supporting side plate 310; and an arc-shaped track 322, mounted on the supporting side plate 310, with the bottom end of the arc-shaped track 322 connected to the vertical track 321 and the top end of the arc-shaped track 322 and the top end of the vertical track 321 on the same plane. The gear adjustment mechanism 300 also includes: a first roller 350, rotatably mounted on the top end of the moving rod 330 when the headrest 200 is in the first working position, and the first roller 350 is rolled within the vertical track 321; and a second roller 360, rotatably mounted on the bottom end of the moving rod 330 when the headrest 200 is in the first working position, and the second roller 360 is rolled within the vertical track 321 and the arc-shaped track 322, wherein when the second roller 360 is within the arc-shaped track 322, the headrest 200 is in the second working position.

[0062] In this technical solution, the vertical track 321 is vertically mounted on the support side plate 310, providing a basic path for the movement of the moving rod 330 in the vertical direction. Within the vertical track 321, the moving rod 330 can slide in a straight line along the vertical direction. The arc track 322 is mounted on the support side plate 310, with its bottom end connected to the vertical track 321 and its top end on the same plane as the top end of the vertical track 321. After the moving rod 330 completes its upward movement along the vertical track 321, the second roller 360 enters the arc track 322 and can move along the arc path, thereby enabling the moving rod 330 to rotate, which in turn drives the headrest 200 to rotate.

[0063] The first roller 350 is rolled within the vertical track 321. When adjusting the headrest position, the first roller 350 rolls within the vertical track 321, driving the moving rod 330 to move vertically. The second roller 360 is rotatably mounted on the moving rod 330. The second roller 360 is rolled within both the vertical track 321 and the arc track 322. When adjustment begins, the second roller 360 works in conjunction with the first roller 350, both rolling within the vertical track 321 to assist the moving rod 330 in rising smoothly to the designated height. When the first roller 350 contacts the top of the vertical track 321, the drive assembly 340 continues to apply force to the moving rod 330, at which point the second roller 360 enters the arc track 322. When the headrest 200 rolls within the arc track 322, the moving rod 330 rotates around the center of the first roller 350, thereby causing the headrest 200 to rotate accordingly via the L-shaped connector 400. When the second roller 360 is at the top of the arc track 322, the headrest 200 is in the second working position, parallel to the side of the sofa back 100 and maintaining a certain gap. The gap is created by the L-shaped connector 400. The length of the L-shaped connector 400 allows the headrest 200 to extend out of the sofa back 100 and maintain a certain gap with the sofa back 100.

[0064] like Figure 1 and Figure 3 As shown, in some instances, the drive assembly 340 includes: a drive shaft 341, which is rotatably mounted within the sofa backrest 100 and connected to a motor; and a drive link 342, which is disposed between the drive shaft 341 and the moving rod 330.

[0065] In this technical solution, the drive shaft 341 motor is connected to and rotatably installed inside the sofa backrest 100. The drive linkage 342 is set between the drive shaft 341 and the moving rod 330, and plays the role of power transmission. One end is connected to the drive shaft 341 and the other end is connected to the moving rod 330, transmitting the rotational motion of the drive shaft 341 to the moving rod 330, and converting the rotational motion into the linear motion and rotational motion required by the moving rod 330.

[0066] When the drive shaft 341 starts to rotate under the drive of the motor, the drive linkage 342 connected to the drive shaft 341 will perform part of the circular motion. Since the other end of the drive linkage 342 is connected to the moving rod 330, it will push the moving rod 330 to move along the moving track 320.

[0067] like Figure 1 and Figure 4As shown, in some examples, it also includes: a locking mechanism 500, disposed within the support side plate 310, for fixing the moving rod 330 relative to the support side plate 310; the locking mechanism 500 includes: a locking piece 510, slidably mounted within the support side plate 310; a driving member 520, connected to the locking piece 510, for controlling the locking piece 510 to move towards or away from the moving track 320, the locking piece 510 being disposed on one side of the arc track 322, and the driving member 520 controlling the locking piece 510 to move towards or away from the arc track 322.

[0068] In this technical solution, the locking mechanism 500 is installed inside the support side plate 310. Its main function is to fix the moving rod 330 relative to the support side plate 310. After the headrest is adjusted to the required working position by the drive assembly 340, the position of the moving rod 330 is locked by the locking mechanism 500 to prevent it from moving accidentally due to external force during normal use of the sofa. This ensures that the headrest is always in the set working state and provides users with a reliable and stable support experience.

[0069] The locking plate 510 is slidably installed inside the support side plate 310 and is located on one side of the arc-shaped track 322. When the moving rod 330 moves to the required working position of the headrest in the arc-shaped track 322, the locking plate 510 extends into the arc-shaped track 322 and squeezes the second roller 360, thereby locking the position of the moving rod 330.

[0070] In some instances, the gear adjustment mechanism 300 includes two sets, which are located on both sides of the sofa backrest 100; a connecting post 600 is provided between the two sets of gear adjustment mechanisms 300, and the connecting post 600 is fixedly installed between the moving rods 330 of the two sets of gear adjustment mechanisms 300.

[0071] In this technical solution, there are two sets of adjustment mechanisms 300, which are respectively arranged on both sides of the sofa backrest 100. The symmetrically arranged adjustment mechanisms 300 on both sides can evenly distribute the external force borne by the headrest 200 during adjustment and use, ensuring that the headrest can maintain balance and stability in all positions. A connecting column 600 is provided between the two sets of adjustment mechanisms 300. The connecting column 600 is fixedly installed between the moving rods 330 of the two sets of adjustment mechanisms 300. When the moving rod 330 on one side moves under the action of the drive component 340, the moving rod 330 on the other side will be driven synchronously due to the connection of the connecting column 600, ensuring the consistency and continuity of adjustment on both sides.

[0072] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0073] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0074] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0075] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A multi-position adjustable headrest for sofas, characterized in that, include: Sofa backrest (100); A headrest (200) is provided at the top of the sofa backrest (100); The L-shaped connector (400) is fixedly connected at one end to the headrest (200). A gear adjustment mechanism (300) is disposed inside the sofa backrest (100), and the other end of the L-shaped connector (400) is connected to the gear adjustment mechanism (300); The gear adjustment mechanism (300) changes the working position of the headrest (200) through the L-shaped connector (400). The first working position is when the top surface of the headrest (200) and the sofa back (100) are on the same plane. The second working position is when the headrest (200) and the side of the sofa back (100) are parallel, and there is a gap between the headrest (200) and the sofa back (100).

2. The multi-position adjustable headrest for sofas as described in claim 1, characterized in that, The gear adjustment mechanism (300) includes: The supporting side panel (310) is fixedly installed inside the sofa backrest (100); A movable track (320) is formed on the supporting side plate (310); The movable rod (330) is slidably installed in the movable track (320), and the L-shaped connector (400) is fixedly connected to the movable rod (330); A drive assembly (340) is connected to the movable rod (330) and is used to drive the movable rod (330) to move upward and then rotate.

3. The multi-position adjustable headrest for sofas as described in claim 2, characterized in that, The moving track (320) includes: A vertical track (321) is vertically mounted on the supporting side plate (310); An arc-shaped track (322) is provided on the supporting side plate (310), and the bottom end of the arc-shaped track (322) is connected to the vertical track (321), and the top end of the arc-shaped track (322) is on the same plane as the top end of the vertical track (321).

4. The multi-position adjustable headrest for sofas as described in claim 3, characterized in that, The gear adjustment mechanism (300) also includes: The first roller (350) is rotatably mounted on the top of the moving rod (330) when the headrest (200) is in the first working position, and the first roller (350) is rolled in the vertical track (321); The second roller (360), when the headrest (200) is in the first working position, is rotatably mounted on the bottom end of the moving rod (330). The second roller (360) is rolled within the vertical track (321) and the arc track (322). When the second roller (350) is within the arc-shaped track (322), the headrest (200) is in the second working position.

5. The multi-position adjustable headrest for sofas as described in claim 2, characterized in that, The drive component (340) includes: The drive shaft (341) is rotatably mounted inside the sofa backrest (100) and connected to the motor; The drive link (342) is disposed between the drive shaft (341) and the moving rod (330).

6. The multi-position adjustable headrest for sofas as described in claim 4, characterized in that, Also includes: A locking mechanism (500) is provided inside the support side plate (310) for fixing relative to the support side plate (310) using the moving rod (330).

7. The multi-position adjustable headrest for sofas as described in claim 6, characterized in that, The locking mechanism (500) includes: The locking piece (510) is slidably installed inside the support side plate (310); A drive unit (520), connected to the locking piece (510), is used to control the locking piece (510) to move toward or away from the moving track (320).

8. The multi-position adjustable headrest for sofas as described in claim 7, characterized in that: The locking piece (510) is disposed on one side of the arc-shaped track (322), and the driving member (520) controls the locking piece (510) to move toward or away from the arc-shaped track (322).

9. The sofa multi-position adjustable headrest as described in claim 2, characterized in that: The gear adjustment mechanism (300) includes two sets, and the two sets of gear adjustment mechanisms (300) are arranged on both sides of the sofa back (100); A connecting column (600) is provided between the two sets of gear adjustment mechanisms (300), and the connecting column (600) is fixedly installed between the moving rods (330) of the two sets of gear adjustment mechanisms (300).

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