Head supporting device

Abstract

The utility model provides a head supporting device and a vehicle seat. The head supporting device comprises a fixing part, and the thickness direction of the fixing part is the first direction; the supporting shell is arranged outside the fixing part in a sleeving mode, the supporting shell can move relative to the fixing part in the first direction, at least one locking matching set is arranged on the inner wall of the supporting shell, and the locking matching set comprises a plurality of limiting parts which are sequentially arranged in the first direction; the locking assembly is arranged on the fixing part, the locking assembly at least comprises at least one locking part corresponding to the locking matching group, and when the supporting shell stops moving, the locking part can be clamped in any limiting part in the corresponding locking matching group. When rear-end collision or other collision events occur, and a human body falls backwards to press the head supporting device due to inertia, the locking part can be clamped in the limiting part at the corresponding position in the locking matching group, so that the stability is ensured, the head and the neck of a member are effectively protected, and the safety of the member is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle headrests, and in particular to a head support device. Background Art

[0002] In the design of modern cars, vehicle headrests play a vital role in ensuring the safety and comfort of passengers' necks. Adjustable headrests are introduced as an innovative design to provide occupants with more personalized and comfortable head support.

[0003] In the prior art, the adjustable head support device has the problem of shaking forward and backward, which is not only unstable but also produces abnormal noise during movement. Especially when a vehicle rear-ends, the human body will fall backward due to inertia. At this time, the pressure of vehicle acceleration or deceleration is concentrated on the fragile neck and head of the human body, while the headrest plays a buffering role to protect the human head. The instability of the headrest not only fails to protect the head and neck, but also causes more serious injuries to the human body. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a head support device and a vehicle seat.

[0005] In a first aspect, the present application provides a head support device, comprising:

[0006] A fixing portion, wherein a thickness direction of the fixing portion is a first direction;

[0007] A support shell, wherein the support shell is sleeved outside the fixing portion, the support shell can move relative to the fixing portion along the first direction, and at least one locking matching group is provided on the inner wall of the support shell, and the locking matching group includes a plurality of limiting portions arranged in sequence along the first direction;

[0008] A locking assembly is arranged on the fixing portion, and the locking assembly includes at least one locking portion corresponding to the locking matching group. When the support shell stops moving, the locking portion can be stuck in any one of the limiting portions in the corresponding locking matching group.

[0009] According to the technical solution provided in the embodiment of the present application, the support shell includes a detachably connected support shell and a support cover, the support shell and the support cover are arranged along the first direction, a second cavity is formed between the support shell and the support cover, and the second cavity is used to accommodate the fixing part; the support shell is provided with at least one guide rod extending in the first direction on the side close to the support cover, the guide rod passes through the fixing part, and the end of the guide rod away from the support shell is against the support cover.

[0010] According to the technical solution provided by the embodiment of the present application, the locking portion has a first state and a second state. In the first state, the locking portion is stuck in any one of the limiting portions, and the support housing is locked relative to the fixed portion. In the second state, the locking portion is not stuck in any one of the limiting portions, and the support housing can slide relative to the fixed portion along the first direction. The locking assembly further includes a driving element for driving the locking portion to switch between the first state and the second state.

[0011] According to the technical solution provided by the embodiment of the present application, a first cavity is provided in the fixed portion, and the locking assembly is disposed in the first cavity.

[0012] According to the technical solution provided by the embodiment of the present application, the bottom of the fixed portion has two second openings arranged along a second direction and communicating with the first cavity. The head support device further includes a headrest rod, and the headrest rod at least includes two headrest vertical rods arranged along the second direction. The two headrest vertical rods penetrate through the first cavity and extend out of the first cavity from the two second openings respectively. The second direction is the length direction of the fixed portion.

[0013] According to the technical solution provided by the embodiment of the present application, a first opening communicating with the first cavity is provided on the fixed portion away from the side of the second opening. A headrest cross bar is further provided between the two headrest vertical rods, and the headrest cross bar is disposed at the first opening.

[0014] According to the technical solution provided by the embodiment of the present application, a first avoidance hole is provided on the headrest rod at a position corresponding to the locking portion. When the locking portion is in the first state, the locking portion penetrates through the first avoidance hole and is stuck in any one of the limiting portions.

[0015] According to the technical solution provided by the embodiment of the present application, a second avoidance hole is provided on the fixed portion at a position corresponding to the locking portion. When the locking portion is in the first state, the locking portion penetrates through the second avoidance hole and is stuck in any one of the limiting portions.

[0016] According to the technical solution provided by the embodiment of the present application, a first space is provided between the fixed portion and the support housing, and a second space is provided between the fixed portion and the support cover. At least one airbag is provided in each of the first space and the second space, and the inflation / deflation of the airbag is used to drive the movement of the support housing relative to the fixed portion along the first direction.

[0017] According to the technical solution provided by the embodiment of the present application, the fixing part has a first fixing hole, the locking assembly has a second fixing hole opposite to the first fixing hole, and a fixing element is provided in the first fixing hole and the second fixing hole. The fixing element is used to fix the locking assembly on the fixing part.

[0018] In summary, the present application proposes a head support device. The head support device includes a fixing part, and the thickness direction of the fixing part is the first direction; a support shell is sleeved outside the fixing part, and the support shell can move relative to the fixing part along the first direction. At least one locking cooperation group is provided on the inner wall of the support shell, and the locking cooperation group includes a plurality of limiting parts arranged in sequence along the first direction; a locking assembly is arranged on the fixing part, and the locking assembly includes at least one locking part corresponding to the locking cooperation group. When the movement of the support shell stops, the locking part can be stuck in any one of the limiting parts in the corresponding locking cooperation group.

[0019] Compared with the prior art, the beneficial effect of the present application is that: the head support device proposed by the present application has a locking assembly, which can cooperate with the locking cooperation group provided on the inner wall of the support shell to prevent the device from moving when, during daily use, a rear-end collision or other collision event occurs and the human body falls backward due to inertia and the head presses against the head support device. When the movement of the support shell stops, the locking part of the locking assembly will be stuck in the limiting part at the corresponding position in the locking cooperation group, ensuring the stability of the head support device, thereby effectively protecting the head and neck of the member and ensuring the safety of the member. Description of the Drawings

[0020] Figure 1 It is a schematic cross-sectional view of the head support device (the headrest rod only includes two headrest vertical rods) provided by the embodiment of the present application;

[0021] Figure 2 It is a schematic cross-sectional view of the head support device (the headrest rod includes two headrest vertical rods and a headrest cross rod) provided by the embodiment of the present application;

[0022] Figure 3 Provided by the embodiment of the present application Figure 1 Partial schematic view of part C (the locking part is in the first state) in the present application;

[0023] Figure 4 Provided by the embodiment of the present application Figure 1 Partial schematic view of part A (the locking part is in the first state) in the present application;

[0024] Figure 5 Partial schematic view of the limiting part being a circular tooth-shaped groove provided by the embodiment of the present application;

[0025] Figure 6 Provided by the embodiment of the present application Figure 1Partial schematic view of part B (the locking part is in the first state);

[0026] Figure 7 Exploded structural schematic diagram of the head support device provided by the embodiment of the present application (the headrest rod is a U-shaped rod and the locking assembly has two locking parts, upper and lower);

[0027] Figure 8 Exploded structural schematic diagram of the head support device provided by the embodiment of the present application (the headrest rod is two headrest vertical rods and the locking assembly has two locking parts, upper and lower);

[0028] Figure 9 Exploded structural schematic diagram of the head support device provided by the embodiment of the present application (the headrest rod is two headrest vertical rods and the locking assembly has two locking parts above and one locking part below).

[0029] The text markings in the figure are represented as:

[0030] 1. Fixing part; 11. First opening; 12. First through hole; 13. First fixing hole; 2. Headrest rod; 21. Headrest cross bar; 211. First avoidance hole; 212. Second avoidance hole; 22. Headrest vertical rod; 3. Support housing; 311. Guide rod; 31. Support outer shell; 32. Support cover; 4. Airbag; 5. Locking assembly; 51. Locking part; 52. Second fixing hole; 6. Locking cooperation group; 61. Limiting part. Detailed implementation manners

[0031] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings.

[0032] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0033] Embodiment 1

[0034] As mentioned in the background art, in view of the problems in the prior art, the present application proposes a head support device. Please refer to Figure 1 as shown, including:

[0035] A fixing part 1, the thickness direction of the fixing part 1 is the first direction;

[0036] Specifically, the fixing part 1 is a plate-like structure similar to a cuboid.

[0037] Support housing 3, the support housing 3 is sleeved outside the fixing part 1, the support housing 3 can move relative to the fixing part 1 along the first direction, and at least one locking and mating group 6 is provided on the inner wall of the support housing 3. The locking and mating group 6 includes a plurality of limiting parts 61 arranged in sequence along the first direction;

[0038] Specifically, the limiting part 61 can be a limiting groove or a limiting hole. When the limiting part 61 is a limiting groove, the limiting groove can be a toothed groove (square, circular), a wavy groove, or a groove of other shapes.

[0039] Further, the support housing 3 includes a support outer shell 31 and a support cover 32 that are detachably connected. The support outer shell 31 and the support cover 32 are arranged along the first direction, and a second cavity is formed between the support outer shell 31 and the support cover 32 for accommodating the fixing part 1.

[0040] Specifically, the support outer shell 31 is a pentahedron structure lacking one side and is used in combination with the support cover 32. When the support cover 32 is installed on the support outer shell 31, the second cavity is formed between the support cover 32 and the support outer shell 31.

[0041] Further, at least one guide rod 311 with an extension direction of the first direction is provided on the side of the support outer shell 31 close to the support cover 32. The guide rod 311 penetrates the fixing part 1, and the end of the guide rod 311 away from the support outer shell 31 abuts against the support cover 32.

[0042] Specifically, two first through holes 12 are provided on the fixing part 1, and the extension direction of the first through holes 12 is the first direction. The guide rod 311 is arranged in the first through holes 12;

[0043] Locking assembly 5, the locking assembly 5 is arranged on the fixing part 1. The locking assembly 5 at least includes at least one locking part 51 corresponding to the locking and mating group 6. When the movement of the support housing 3 stops, the locking part 51 can be stuck in any one of the limiting parts 61 in the corresponding locking and mating group 6.

[0044] Specifically, the end of the locking part 51 facing the locking and mating group 6 can be parabolic.

[0045] Specifically, the preferred number of the locking and mating groups 6 is two or more to improve the locking stability. As Figure 8 shown, there is one locking part 51 above and below the locking assembly 5 respectively. Therefore, there are 2 locking and mating groups, which are respectively arranged on the upper inner wall and the lower inner wall of the support outer shell 31; as Figure 9As shown, there are two locking parts 51 above the locking assembly 5 and one locking part 51 below it. Therefore, there are 3 locking cooperation groups, 2 of which are arranged on the upper inner wall of the support housing 31 and 1 is arranged on the lower inner wall of the support housing 31.

[0046] Optionally, the locking assembly 5 can be a self - resetting cylinder. The self - resetting cylinder is supplied with air by an air pump to guide the piston to perform linear reciprocating motion in the cylinder.

[0047] Optionally, the locking assembly 5 can also be an ultra - thin lock core mechanism. When the locking assembly 5 is an ultra - thin lock core mechanism, the locking assembly 5 includes a locking housing. There is a locking cavity in the locking housing. There is one locking part 51 at each end of the locking housing. The locking part 51 includes a moving end placed inside the locking cavity and a locking end placed outside the locking cavity; the two moving ends at both ends can move in the locking cavity along the direction towards or away from the center of the locking cavity;

[0048] Furthermore, the limiting part 61 can be a limiting groove. Please refer to Figure 3 As shown, the limiting groove is a square - toothed groove. Please refer to Figure 5 As shown, the limiting groove is a round - toothed groove. The limiting part 61 can also be a limiting hole. Please refer to Figure 6 As shown; the locking part 51 has a first state and a second state. In the first state, the locking part 51 is stuck in any one of the limiting parts 61, and the support housing 3 is locked relative to the fixed part 1. In the second state, the locking part 51 is not stuck in any one of the limiting parts 61, and the support housing 3 can slide relative to the fixed part 1 along the first direction; the locking assembly 5 further includes a driving element, and the driving element is used to drive the locking part 51 to switch between the first state and the second state.

[0049] Specifically, the driving element is arranged in the locking cavity. The driving element can be an element required for electric drive. When the locking part 51 switches from the first state to the second state, the moving end moves along the direction towards the center of the locking cavity, and the locking end retracts and disengages from the currently stuck limiting part 61 to release the locked state, so that the support housing 3 can slide along the first direction. When the locking part 51 switches from the second state to the first state, the moving end moves along the direction away from the center of the locking cavity, and the locking end pops out and is stuck in the currently located limiting part 61 to achieve the locked state and lock the relative position of the support housing 3 and the fixed part 1, thereby ensuring the stability of the head support device.

[0050] Further, a first cavity is provided in the fixing portion 1, and the locking assembly 5 is arranged in the first cavity.

[0051] Further, the bottom of the fixing portion 1 has two second openings arranged along the second direction and communicating with the first cavity; the headrest support device further includes a headrest rod 2, and the headrest rod 2 at least includes two headrest vertical rods 22 arranged along the second direction. The two headrest vertical rods 22 penetrate through the first cavity and extend out of the first cavity from the two second openings respectively. Wherein, the second direction is the length direction of the fixing portion 1.

[0052] Optionally, please refer to Figure 1 、 Figure 3 、 Figure 8 and Figure 9 As shown in, the headrest rod 2 can be two independent vertical rods.

[0053] Further, a first opening 11 communicating with the first cavity is provided on the fixing portion 1 away from the side of the second opening; a headrest cross rod 21 is further arranged between the two headrest vertical rods 22, and the headrest cross rod 21 is placed at the first opening 11.

[0054] Optionally, please refer to Figure 2 、 Figure 4 、 Figure 7 As shown in, the headrest rod 2 can also be a U-shaped rod structure. The U-shaped rod structure is composed of two headrest vertical rods 22 and the headrest cross rod 21 between the two headrest vertical rods 22. During installation, the entire headrest rod 2 is inserted into the first cavity from the first opening 11, and the two headrest vertical rods 22 extend out of the first cavity from the corresponding second openings and are inserted on the vehicle seat backrest to fix the headrest support device on the entire vehicle seat, and the headrest cross rod 21 is placed at the first opening 11.

[0055] The first opening 11 is a long strip-shaped opening along the length direction of the fixing portion 1, and the width of the long strip-shaped opening is greater than the thickness of the first cavity along the first direction, so that the headrest cross rod 21 can be stuck in the first opening 11, and the second opening is a circular opening matching the size of the headrest vertical rod 22.

[0056] Specifically, on the support shell 31, two long strip-shaped third openings are provided on the support surface below the pentahedron structure. The extending direction of the third openings is the first direction, and the two third openings are also used to avoid the two headrest vertical rods 22 of the headrest rod 2. When the support shell 3 slides relative to the fixing portion 1, the two headrest vertical rods 22 slide in the third openings.

[0057] In a preferred embodiment, a first avoidance hole 211 is provided on the headrest rod 2 at a position corresponding to the locking portion 51. When the locking portion 51 is in the first state, the locking portion 51 passes through the first avoidance hole 211 and is stuck in any one of the limiting portions 61.

[0058] Optionally, the locking assembly 5 can be locked up and down (along the height direction of the fixing portion 1), or can be locked left and right (along the length direction of the fixing portion 1), or can be locked in any other direction.

[0059] When the locking assembly 5 is locked up and down, the first avoidance hole 211 is provided on the headrest cross bar 21 (as Figure 7 shown). The number of the first avoidance holes 211 is the same as the number of the locking portions 51 above the locking assembly 5. If only one locking portion 51 is included above the locking assembly 5, the number of the first avoidance holes 211 is one. If multiple locking portions 51 are included above the locking assembly 5, the number of the first avoidance holes 211 is multiple;

[0060] When the locking assembly 5 is locked left and right, the first avoidance hole 211 is provided on the two headrest vertical rods 22, and the number of the first avoidance holes 211 on each headrest vertical rod 22 is the same as the number of the locking portions 51 on that side.

[0061] In a preferred embodiment, a second avoidance hole 212 is provided on the fixing portion 1 at a position corresponding to the locking portion 51. When the locking portion 51 is in the first state, the locking portion 51 passes through the second avoidance hole 212 and is stuck in any one of the limiting portions 61.

[0062] Specifically, when the locking assembly 5 is locked up and down, if the headrest rod 2 only includes two headrest vertical rods 22, then the fixing portion 1 may not need to be provided with the first opening 11. At this time, since the top of the fixing portion 1 is a closed structure, a second avoidance hole 212 needs to be opened at the top of the fixing portion 1, as Figure 8 shown as one second avoidance hole 212, as Figure 9 shown as two second avoidance holes 212; when the headrest rod 2 further includes the headrest cross bar 21, the fixing portion 1 has a first opening above, and the second avoidance hole 212 is provided on the plate surface below the fixing portion 1 along its height direction (since the fixing portion 1 has the first opening 11 above and can directly avoid the locking portion 51, there is no need to open an avoidance hole anymore);

[0063] When the locking assembly 5 is locked left and right, the second avoidance holes 212 are respectively provided on the two plate surfaces of the two fixing portions 1 along their length directions.

[0064] In a preferred embodiment, there is a first space between the fixing part 1 and the support housing 31, and a second space between the fixing part 1 and the support cover 32. At least one airbag 4 is provided in each of the first space and the second space. The inflation / deflation of the airbag 4 is used to drive the support housing 3 to move relative to the fixing part 1 in the first direction.

[0065] In a preferred embodiment, the fixing part 1 has a first fixing hole 13, and the locking assembly 5 has a second fixing hole 52 opposite to the first fixing hole 13. A fixing element is provided in the first fixing hole 13 and the second fixing hole 52, and the fixing element is used to fix the locking assembly 5 to the fixing part 1.

[0066] Optionally, the fixing element is a bolt, which can realize the fixed installation of the locking assembly 5 on the fixing part 1.

[0067] Embodiment 2

[0068] Based on Embodiment 1, this embodiment provides a vehicle seat, which includes the head support device as described in Embodiment 1.

[0069] The vehicle seat with the head support device proposed in the present application can significantly improve stability, specifically by effectively eliminating the problem of the front-back shaking of the support housing 3 during use. During vehicle driving, whether it is sudden braking, sudden acceleration or encountering bumpy road conditions, the passenger's head can be stably supported, greatly reducing the risk of neck injury caused by the shaking of the headrest. For example, in the case of emergency braking, the headrest can maintain a fixed position to prevent the head from tilting forward or backward due to inertia.

[0070] In addition, it can also enhance the riding comfort: during a long driving or riding process, passengers are no longer disturbed by the unstable shaking of the support housing 3 and can enjoy the journey more relaxedly and comfortably. This is of great significance for reducing fatigue and improving the riding experience.

[0071] Moreover, it can also be adjusted and fixed personalized: since the locking part 51 can be stuck in the limiting part 61 at any position, passengers can adjust the support housing 3 to the most comfortable position according to their own body types and preferences and lock it, meeting the personalized needs of different passengers.

[0072] In addition, it can also achieve more intelligent monitoring, and can monitor the air pressure in the airbag to realize regular air replenishment for the airbag.

[0073] In this article, specific examples are used to elaborate on the principles and implementation manners of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. The above is only the preferred implementation manner of this application. It should be noted that due to the limited nature of written expression and objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of this invention, several improvements, embellishments or changes can also be made, or the above technical features can be combined in an appropriate manner; these improvements, embellishments, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of this application.

Claims

1. A head support device, characterized in that: include: A fixing portion (1), wherein a thickness direction of the fixing portion (1) is a first direction; A support shell (3), the support shell (3) being sleeved outside the fixing portion (1), the support shell (3) being movable relative to the fixing portion (1) along the first direction, at least one locking matching group (6) being provided on the inner wall of the support shell (3), the locking matching group (6) comprising a plurality of limiting portions (61) arranged in sequence along the first direction; A locking assembly (5), the locking assembly (5) being arranged on the fixing portion (1), the locking assembly (5) comprising at least one locking portion (51) corresponding to the locking matching group (6), and when the support shell (3) stops moving, the locking portion (51) can be stuck in any one of the limiting portions (61) in the corresponding locking matching group (6).

2. The head support device according to claim 1, characterized in that: The support shell (3) comprises a detachably connected support shell (31) and a support cover (32); the support shell (31) and the support cover (32) are arranged along the first direction; a second cavity is formed between the support shell (31) and the support cover (32); the second cavity is used to accommodate the fixing portion (1); the support shell (31) is provided with at least one guide rod (311) extending in the first direction on a side close to the support cover (32); the guide rod (311) passes through the fixing portion (1); and an end of the guide rod (311) away from the support shell (31) abuts against the support cover (32).

3. The head support device according to claim 1, characterized in that: The locking portion (51) has a first state and a second state. In the first state, the locking portion (51) is stuck in any one of the limiting portions (61), and the support shell (3) is locked relative to the fixing portion (1). In the second state, the locking portion (51) is not stuck in any one of the limiting portions (61), and the support shell (3) can slide relative to the fixing portion (1) along the first direction. The locking assembly (5) further comprises a driving element, which is used to drive the locking portion (51) to switch between the first state and the second state.

4. The head support device according to claim 3, characterized in that: The fixing portion (1) has a first cavity therein, and the locking assembly (5) is arranged in the first cavity.

5. The head support device according to claim 4, characterized in that: The fixing portion (1) has two second openings arranged along a second direction at the bottom thereof and communicating with the first cavity; the head support device further comprises a headrest rod (2), the headrest rod (2) comprising at least two headrest vertical rods (22) arranged along the second direction, the two headrest vertical rods (22) respectively extending into the first cavity from the two second openings and penetrating the first cavity, the second direction being the length direction of the fixing portion (1).

6. The head support device according to claim 5, characterized in that: A first opening (11) communicating with the first cavity is provided on the fixing portion (1) at a side away from the second opening; a headrest cross bar (21) is also provided between the two headrest vertical bars (22), and the headrest cross bar (21) is placed at the first opening (11).

7. The head support device according to claim 5 or 6, characterized in that: A first avoidance hole (211) is provided on the headrest rod (2) at a position corresponding to the locking portion (51); when the locking portion (51) is in the first state, the locking portion (51) passes through the first avoidance hole (211) and is stuck in any one of the limiting portions (61).

8. The head support device according to claim 4, characterized in that: A second avoidance hole (212) is provided on the fixing portion (1) at a position corresponding to the locking portion (51); when the locking portion (51) is in the first state, the locking portion (51) passes through the second avoidance hole (212) and is stuck in any one of the limiting portions (61).

9. The head support device according to claim 2, characterized in that: A first space is provided between the fixing portion (1) and the supporting shell (31), and a second space is provided between the fixing portion (1) and the supporting cover (32). At least one air bag (4) is provided in each of the first space and the second space. The inflation / deflation of the air bag (4) is used to drive the supporting shell (3) to move relative to the fixing portion (1) along the first direction.

10. The head support device according to claim 1, characterized in that: The fixing portion (1) has a first fixing hole (13), the locking assembly (5) has a second fixing hole (52) opposite to the first fixing hole (13), and fixing elements are provided in the first fixing hole (13) and the second fixing hole (52), the fixing elements being used to fix the locking assembly (5) to the fixing portion (1).

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