Headrest device of seat and seat

Abstract

The present invention relates to the technical field of seats, and more specifically, to a headrest device of a seat and a seat. The headrest device of the seat includes a headrest backboard, a bracket assembly, and a connector assembly, wherein the headrest backboard and the bracket assembly are connected via the connector assembly; the connector assembly includes a limiting elastic assembly and a connecting shell, wherein the limiting elastic assembly includes a positioning portion and two symmetrical curved elastic arms extending from the positioning portion, wherein the curved elastic arms include a bending portion and a connecting portion, wherein one end of the two connecting portions are respectively inserted into the headrest backboard, and at the same time, the limiting elastic assembly and the headrest backboard are movably connected to the connecting shell. The headrest device of the seat of the present invention adopts the above-mentioned structure, so that the headrest backboard can rotate within a preset angle range, so that the position of the headrest backboard can be flexibly adjusted according to the needs of the user, which greatly improves the user's comfort.

Description

Technical Field

[0001] The present invention relates to the technical field of seats, and in particular to a headrest device of a seat and the seat. Background Art

[0002] In a modern, fast-paced work environment, lunch breaks are extremely important for office workers, and most office workers take a break by leaning on a chair. However, the headrests of office chairs currently available on the market are fixed in position, and the angles are not easy to adjust, which makes it difficult for users to adjust their head positions during use. Therefore, during use, users may choose to lie on the table and sleep, which is not only uncomfortable but also unhealthy. In order to improve the quality of lunch breaks, some people choose to prepare a folding bed in the office, but the folding bed takes up space when in use, which is not conducive to its popular use in offices.

[0003] In summary, there is an urgent need to develop a new type of headrest device and seat for a seat, so that the headrest of the chair can flexibly adjust the angle to improve the user's comfort. Summary of the invention

[0004] In view of the above-mentioned problems, the purpose of the present invention is to provide a headrest device for a seat and a seat, so as to solve the problem in the prior art that the headrest of the seat is inconvenient to adjust the angle, which affects the user's comfort.

[0005] A headrest device for a seat, comprising a headrest backing plate, a bracket assembly, and a connector assembly, wherein the headrest backing plate and the bracket assembly are connected via the connector assembly;

[0006] The connecting member assembly includes a limiting elastic assembly and a connecting shell, and the limiting elastic assembly and the headrest back plate are movably connected to the connecting shell;

[0007] The limiting elastic component includes a positioning portion and two symmetrical curved elastic arms extending from the positioning portion, the curved elastic arm includes a bending portion and a connecting portion, the bending portion is connected between the positioning portion and the connecting portion, and one end of the two connecting portions is respectively inserted into the headrest backrest.

[0008] Preferably, the connector assembly further includes a rotating shaft, the headrest back plate includes a first through hole, the positioning portion includes a positioning hole, and the positioning hole and the first through hole are concentrically connected to the connecting shell via the rotating shaft.

[0009] Preferably, the bracket assembly comprises a bracket and a lifting unit, the bracket is clamped at one end of the connecting shell away from the headrest backboard, and the lifting unit is used to adjust and fix the height of the headrest backboard.

[0010] Preferably, the lifting unit comprises a headrest fastener and a positioning spring block, the positioning spring block is used to be clamped on the headrest fastener, and the headrest fastener is movably sleeved on the bracket. .

[0011] Preferably, the positioning spring block comprises a hook, a convex block and a curved surface support portion, the convex block is arranged on the curved surface support portion, and two hooks are symmetrically arranged on one side of the curved surface support portion;

[0012] The headrest fastener includes a clamping block, the positioning spring block is inserted into the headrest fastener, and the clamping hook is clamped on the clamping block.

[0013] Preferably, the bracket includes a slide groove, and the headrest fastener is provided with a slider matching the slide groove, and the slider can slide in the slide groove.

[0014] Preferably, the bracket is provided with a plurality of grooves spaced at preset distances, and the protrusions are clamped in the grooves to fix the height of the headrest backrest.

[0015] Preferably, it further comprises an elastic element, one end of the elastic element is arranged in the connecting shell, and the other end of the elastic element is arranged in the bracket.

[0016] Preferably, a second through hole is provided on the connecting shell, and the rotating shaft and the second through hole are clearance-fitted.

[0017] A seat comprises a seat body and a headrest device arranged on the seat body;

[0018] The headrest device comprises a headrest backing plate, a bracket assembly, and a connector assembly, wherein the headrest backing plate and the bracket assembly are connected via the connector assembly;

[0019] The connecting member assembly includes a limiting elastic assembly and a connecting shell, and the limiting elastic assembly and the headrest back plate are movably connected to the connecting shell;

[0020] The limiting elastic component includes a positioning portion and two symmetrical curved elastic arms extending from the positioning portion, the curved elastic arm includes a bending portion and a connecting portion, the bending portion is connected between the positioning portion and the connecting portion, and one end of the two connecting portions is respectively inserted into the headrest backrest.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The headrest device provided by the present invention includes a headrest backrest plate, a bracket assembly and a connecting member assembly, the connecting member assembly includes a limiting elastic assembly and a connecting shell, the limiting elastic assembly includes a positioning portion and two symmetrical curved elastic arms extending from the positioning portion, the curved elastic arms include a bending portion and a connecting portion, the two connecting portions are respectively inserted into the headrest backrest plate, and at the same time, the limiting elastic assembly and the headrest backrest plate are movably connected to the connecting shell, the limiting elastic assembly is used to drive the headrest backrest plate to rotate relative to the connecting shell, and the limiting elastic assembly enables the headrest backrest plate to rotate within a preset angle range, so that the position of the headrest backrest plate can be flexibly adjusted according to user needs, which greatly improves the user's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 The overall structure diagram of the headrest device of the seat provided by the embodiment of the present invention;

[0025] Figure 2 An exploded view of the headrest structure of a seat provided by an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the rotation principle of a headrest backboard in a headrest device for a seat provided by an embodiment of the present invention;

[0027] Figure 4 A partial schematic diagram of a bracket assembly in a headrest device of a seat provided by an embodiment of the present invention;

[0028] Figure 5 for Figure 4 A schematic cross-sectional view of the middle bracket assembly in the AA direction;

[0029] Figure 6 for Figure 4 Schematic cross-sectional view of the middle bracket assembly in the BB direction.

[0030] [Illustration]: rotating shaft 1, limiting elastic component 2, headrest backing plate 3, fastening screws 4, shielding cover 5, connecting shell 6, elastic element 7, bracket 8, headrest fastener 9, positioning spring block 10;

[0031] Positioning portion 21, curved elastic arm 22, connecting portion 221, curved portion 222, positioning hole 23, first through hole 31, second through hole 61, groove 81, hook 101, protrusion 102, curved support portion 103 DETAILED DESCRIPTION

[0032] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it is to be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally disposed component. When a component is considered to be "disposed on" another component, it may be directly disposed on the other component or there may be a centrally disposed component.

[0034] In addition, terms such as "long", "short", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific direction or operate with a specific direction structure, and should not be understood as a limitation of the present invention.

[0035] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0036] Embodiment 1

[0037] See also Figures 1 to 6 , a headrest device for a seat, comprising a headrest back plate 3, a bracket assembly, and a connector assembly, wherein the headrest back plate 3 and the bracket assembly are connected via the connector assembly;

[0038] The connector assembly includes a limit elastic assembly 2 and a connection shell 6, and the limit elastic assembly 2 and the headrest back plate 3 are movably connected to the connection shell 6;

[0039] The position limiting elastic component 2 includes a positioning portion 21 and two symmetrical curved elastic arms 22 extending from the positioning portion 21, the curved elastic arm 22 includes a curved portion 222 and a connecting portion 221, the curved portion 222 is connected between the positioning portion 21 and the connecting portion 221, and one end of the two connecting portions 221 is respectively inserted into the headrest back plate 3. Optionally, the position limiting elastic component 2 is integrally formed of a plastic material with resilience.

[0040] Specifically, the two connecting parts 221 of the limiting elastic component 2 support the two sides of the headrest back plate 3 respectively, and the two ends of the limiting elastic component 2 are respectively the A end and the B end. The headrest back plate 3 can rotate downwards under the force of the user, and then be released. Because the limiting elastic component 2 has resilience, the A end of the limiting elastic component 2 drives the limiting elastic component 2 to return to the initial position as a whole, and the limiting elastic component 2 drives the headrest back plate 3 to return to the initial position when rotating. Similarly, the headrest back plate 3 rotates upwards under the force of the user and then is released. The B end of the limiting elastic component 2 drives the limiting elastic component 2 to return to the initial position as a whole, and the limiting elastic component 2 drives the headrest back plate 3 to return to the initial position when rotating. At the same time, the limiting elastic component 2 is movably connected to the headrest back plate 3 on the connecting shell 6. The headrest device of the seat adopts the above structure, so that the headrest back plate 3 can be rotated within a preset angle range, and the position of the headrest back plate 3 can be flexibly adjusted according to the needs of the user, so it can greatly improve the user's comfort.

[0041] In an optional embodiment, the connector assembly further includes a rotating shaft 1 , the headrest back plate 3 includes a first through hole 31 , the positioning portion 21 includes a positioning hole 23 , and the positioning hole 23 is concentrically connected to the connecting shell 6 with the first through hole 31 via the rotating shaft 1 .

[0042] In order to further enhance the user's comfort, in an optional embodiment, the bracket assembly includes a bracket 8 and a lifting unit, wherein the lifting unit is used to adjust and fix the height of the headrest backboard 3, and the bracket 8 is clamped at one end of the connecting shell 6 away from the headrest backboard 3.

[0043] In an optional embodiment, the lifting unit includes a headrest fastener 9 and a positioning spring block 10 , the positioning spring block 10 is clamped on the headrest fastener 9 , and the headrest fastener 9 is movably mounted on the bracket 8 .

[0044] Optionally, the positioning spring block 10 includes a hook 101, a protrusion 102 and a curved support portion 103, the protrusion 102 is arranged on the curved support portion 103, and two hooks 101 are symmetrically arranged on one side of the curved support portion 103. The headrest fastener 9 includes a block, and after the positioning spring block 10 is inserted into the headrest fastener 9, the two hooks 101 are clamped on the block, so that the positioning spring block 10 is fixed to the headrest fastener 9 without loosening. Optionally, the bracket 8 includes a slide groove, and the headrest fastener 9 is provided with a slider matching the slide groove, and the slider can slide in the slide groove. Optionally, a plurality of grooves 81 spaced at a preset distance are provided on the bracket 8, and the protrusion 102 is clamped in the groove 81 to fix the height of the headrest back plate 3.

[0045] Specifically, when the height of the headrest backboard 3 needs to be adjusted, the headrest backboard 3 is pulled to drive the bracket 8 to move, the slider slides in the slide groove, and the protrusion 102 slides on the bracket 8 according to the height to be adjusted and is stuck in the new groove 81, thereby fixing the position of the headrest backboard 3.

[0046] Optionally, the positioning spring block 10 is made of polyformaldehyde material, which has high rigidity, high wear resistance, good elasticity and lubricity. Therefore, in the process of adjusting the height of the headrest backboard 3, the positioning is accurate, the pulling is smooth, and the sense of rhythm is strong, thereby giving the user a better use experience.

[0047] In an optional embodiment, the front and rear position of the headrest backboard 3 is changed by telescoping the headrest backboard 3, so that the headrest backboard 3 can provide a more comfortable support effect for the user's head. Specifically, the headrest device includes an elastic element 7, one end of the elastic element 7 is arranged in the connecting shell 6, and the other end of the elastic element 7 is arranged in the bracket 8. After the headrest backboard 3 is subjected to force, the force is applied to the connecting shell 6, and the connecting shell 6 slides back and forth on the bracket 8. Optionally, a limiting groove is provided on the outside of the bracket 8, and a protrusion is provided inside the connecting shell 6, and the protrusion slides in the limiting groove, thereby changing the front and rear position of the headrest backboard 3. Optionally, the elastic element 7 can be a spring or rubber or other elastic material.

[0048] In an optional embodiment, a second through hole 61 is provided on the connecting shell 6, and the rotating shaft 1 is clamped in the second through hole 61 by a clearance fit. One end of the rotating shaft 1 is fixed to the connecting shell 6 by a fastening screw 4. In order to improve the overall aesthetics of the headrest device, a shielding cover 5 is provided on the end surface of the fastening screw 4.

[0049] In summary, the headrest device of the seat of the present embodiment includes a headrest backboard 3, a bracket assembly, and a connector assembly. The headrest backboard 3 and the bracket assembly are connected by the connector assembly. The connector assembly includes a limit elastic assembly 2 and a connecting shell 6. The limit elastic assembly 2 includes a positioning portion 21 and two curved elastic arms 22. The curved elastic arms 22 include a bending portion 222 and a connecting portion 221. One end of the two connecting portions 221 is respectively inserted into the headrest backboard 3. The limit elastic assembly 2 and the headrest backboard 3 are movably connected to the connecting shell 6. Through such a structural setting, the headrest backboard 3 can be rotated within a preset angle range with the limit elastic assembly 2, and the position of the headrest backboard 3 can be flexibly adjusted according to the user's needs, which greatly improves the user's comfort. Furthermore, the headrest device is also provided with a lifting unit and an elastic element 7, so that the headrest backboard 3 can be extended and lifted. The multifunctional headrest device can meet the individual needs of most office workers.

[0050] Embodiment 2

[0051] A seat comprises a seat body and a headrest device arranged on the seat body;

[0052] The headrest device comprises a headrest back plate 3, a bracket assembly, and a connector assembly, wherein the headrest back plate 3 and the bracket assembly are connected via the connector assembly;

[0053] The connector assembly includes a limit elastic assembly 2 and a connection shell 6, and the limit elastic assembly 2 and the headrest back plate 3 are movably connected to the connection shell 6;

[0054] The limiting elastic component 2 includes a positioning portion 21 and two symmetrical curved elastic arms 22 extending from the positioning portion 21. The curved elastic arm 22 includes a bending portion 222 and a connecting portion 221. The bending portion 222 is connected between the positioning portion 21 and the connecting portion 221. One end of the two connecting portions 221 is respectively inserted into the headrest backboard 3.

[0055] Specifically, the seat body includes a backrest and a base, the base is connected to the backrest, the backrest and the base are used to support the user's back and buttocks respectively, the headrest device is arranged on the backrest, and optionally, the bracket 8 is fixedly connected to the backrest.

[0056] Optionally, a retractable plate is provided on the lower side of the base. A receiving cavity may be provided on the lower side of the base, and when the user uses the device, the retractable plate is pulled out of the receiving cavity and unfolded to support the user's leg position.

[0057] In summary, the seat of this embodiment includes a seat body and a headrest device, wherein the headrest device includes a headrest backboard 3, a bracket assembly, and a connector assembly, the connector assembly includes a limiting elastic assembly 2 and a connecting shell 6, the headrest backboard 3 can be rotated within a preset angle range along with the limiting elastic assembly 2, and the position of the headrest backboard 3 can be flexibly adjusted according to user needs, which greatly improves the user's comfort.

[0058] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A headrest device for a seat, characterized in that: It comprises a headrest backing plate (3), a bracket assembly, and a connector assembly, wherein the headrest backing plate (3) and the bracket assembly are connected via the connector assembly; The connector assembly comprises a position-limiting elastic assembly (2) and a connecting shell (6), wherein the position-limiting elastic assembly (2) and the headrest back plate (3) are movably connected to the connecting shell (6); The position-limiting elastic component (2) comprises a positioning portion (21) and two symmetrical curved elastic arms (22) extending from the positioning portion (21); the curved elastic arm (22) comprises a bent portion (222) and a connecting portion (221); the bent portion (222) is connected between the positioning portion (21) and the connecting portion (221); one end of the two connecting portions (221) is respectively inserted into the headrest backrest plate (3).

2. The headrest device of a seat according to claim 1, characterized in that: The connecting member assembly also includes a rotating shaft (1), the headrest back plate (3) includes a first through hole (31), the positioning portion (21) includes a positioning hole (23), and the positioning hole (23) and the first through hole (31) are coaxially connected to the connecting shell (6) through the rotating shaft (1).

3. The headrest device of a seat according to claim 1, characterized in that: The bracket assembly comprises a bracket (8) and a lifting unit, wherein the bracket (8) is clamped at one end of the connecting shell (6) away from the headrest backboard (3), and the lifting unit is used to adjust and fix the height of the headrest backboard (3).

4. The headrest device of a seat according to claim 3, characterized in that: The lifting unit comprises a headrest fastener (9) and a positioning spring block (10), wherein the positioning spring block (10) is used to be clamped on the headrest fastener (9), and the headrest fastener (9) is movably sleeved on the bracket (8).

5. The headrest device for a seat according to claim 4, characterized in that: The positioning spring block (10) comprises a hook (101), a convex block (102) and a curved surface support portion (103); the convex block (102) is arranged on the curved surface support portion (103); and the two hooks (101) are symmetrically arranged on one side of the curved surface support portion (103); The headrest fastener (9) includes a clamping block, the positioning spring block (10) is inserted into the headrest fastener (9), and the clamping hook (101) is clamped on the clamping block.

6. The headrest device for a seat according to claim 4, characterized in that: The bracket (8) includes a slide groove, and the headrest buckle (9) is provided with a sliding block matching the slide groove, and the sliding block can slide in the slide groove.

7. The headrest device for a seat according to claim 5, characterized in that: The bracket (8) is provided with a plurality of grooves (81) spaced at a preset distance, and the protrusion (102) is clamped in the groove (81) to fix the height of the headrest backboard (3).

8. The headrest device for a seat according to claim 3, characterized in that: It also comprises an elastic element (7), one end of the elastic element (7) being arranged in the connecting shell (6), and the other end of the elastic element (7) being arranged in the bracket (8).

9. The headrest device for a seat according to claim 2, characterized in that: The connecting shell (6) is provided with a second through hole (61), and the rotating shaft (1) is clearance-matched with the second through hole (61).

10. A seat, characterized in that: It comprises a seat body and a headrest device arranged on the seat body; The headrest device comprises a headrest backing plate (3), a bracket assembly, and a connector assembly, wherein the headrest backing plate (3) and the bracket assembly are connected via the connector assembly; The connector assembly comprises a position-limiting elastic assembly (2) and a connecting shell (6), wherein the position-limiting elastic assembly (2) and the headrest back plate (3) are movably connected to the connecting shell (6); The position-limiting elastic component (2) comprises a positioning portion (21) and two symmetrical curved elastic arms (22) extending from the positioning portion (21); the curved elastic arm (22) comprises a bent portion (222) and a connecting portion (221); the bent portion (222) is connected between the positioning portion (21) and the connecting portion (221); one end of the two connecting portions (221) is respectively inserted into the headrest backrest plate (3).

Images