CN113147545B

CN113147545B - Headrest and automobile seat

Info

Publication number: CN113147545B
Application number: CN202110503966.7A
Authority: CN
Inventors: 唐友名; 孙冠豫; 王平; 张义; 谢祥键; 朱涛; 毛安莉
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2023-04-14
Anticipated expiration: 2041-05-10
Also published as: CN113147545A

Abstract

The invention provides a headrest and an automobile seat, relates to the technical field of automobile equipment, and comprises the following components: a main body having an accommodating space therein, and a swing member disposed in the accommodating space; the body is configured to be switched between a shielding state and a deployed state by the swing assembly; the swinging assembly is provided with a swinging plate, the swinging plate is in adaptive connection with the telescopic assembly, and when the control assembly drives the telescopic assembly to extend, the swinging plate swings forwards and inwards and is in a protection state corresponding to the main body protruding forwards and inwards; or when the telescopic assembly returns to the initial position, the swinging plate is unfolded backwards and outwards and is in an unfolded state corresponding to the main body. The main body has a protection state protruding forwards and inwards by controlling the swinging of the swinging plate, so that the problem that the existing headrest lacks lateral protection is solved.

Description

Headrest and automobile seat

Technical Field

The invention relates to the technical field of automobile equipment, in particular to a headrest and an automobile seat.

Background

Whiplash injury is bone or soft tissue injury caused by the acceleration and deceleration mechanism of the neck due to impact. Data statistics show that the incidence rate of whiplash injury and the incidence rate of road traffic injury are in positive correlation, and particularly, the rear-end collision accident is high. During a rear-end collision, at the moment of collision, the body has a forward acceleration, due to the obstruction of the backrest and the inertia of the head, the chest of the body moves forward and has a tendency to lift upwards, while the head moves horizontally backwards, resulting in the appearance of an inverse "S" shape with the lower part of the cervical vertebrae stretching and the upper part bending, after which the head continues to lean backwards, with the whole neck stretching. With the headrest, the head comes into contact with the headrest and continues to recline, but the presence of the headrest prevents this tendency from continuing, and the head begins to move forward under the rebound action of the headrest. Without the headrest, the head would recline further and neck extension reached a limit. And then reverse motion is initiated.

Therefore, the headrest is a protective article which gives consideration to both driving comfort and head safety of passengers. Although whiplash injury is not as fatal as head and chest injuries, complete healing is difficult, and serious sequelae are easily caused. Thus, a comfortable and safe headrest for vehicle seats is an integral part of a vehicle safety device. Most of the existing headrests protect the head of an occupant by longitudinal displacement according to the collision accident of an automobile. The method for using the active headrest for protecting the neck safety of the automobile passenger, disclosed in Chinese patent CN105346417A, comprises the following steps: firstly, directly communicating an electrically connected control module with an automobile safety system; when the distance between a vehicle behind the automobile and the automobile is within a dangerous value range, the control module directly transmits a command to the air cylinder, the output end of the air cylinder stretches to drive the head plate to move forwards, so that the head of a passenger on the supporting part of the headrest is close to the head of the passenger, the backward movement of the head of the passenger relative to the upper trunk during rear-end collision is limited in advance, and whiplash injury caused by untimely starting of the air cylinder during collision is avoided; when the distance between a vehicle behind the automobile and the automobile is within a safety value range, the control module directly controls the cylinder to retract, namely the output end of the cylinder drives the head plate to move backwards, so that the heads of passengers and the supporting part of the headrest are reset, manual operation is not needed, and the synchronization of headrest protection and an automobile safety system is realized. In the scheme, the head of the passenger is protected only through longitudinal displacement, and the protection in other directions is lacked, so that the safety protection effect cannot be achieved when a side impact occurs.

Disclosure of Invention

The invention discloses a headrest and an automobile seat, and aims to solve the problem that the existing headrest lacks lateral protection.

The invention adopts the following scheme:

a headrest, comprising: a main body having an accommodating space therein, and a swing member disposed in the accommodating space; the body is configured to be switched between a shielding state and a deployed state by the swing assembly;

the swinging assembly is provided with a swinging plate, the swinging plate is in adaptive connection with the telescopic assembly, and when the control assembly drives the telescopic assembly to extend, the swinging plate swings forwards and inwards and is in a protection state corresponding to the main body protruding forwards and inwards; or when the telescopic assembly returns to the initial position, the swinging plate is unfolded backwards and outwards and is in an unfolded state corresponding to the main body.

As a further improvement, the swinging assembly is symmetrically provided with two groups along the central line of the main body, and when the main body is in a protection state, the surface of the main body close to a user is in a U shape.

As a further improvement, a fixing plate is arranged on the side, close to the seat, of the main body, and the swinging plate is hinged to the fixing plate.

As a further improvement, the telescopic assembly comprises a working cylinder and a telescopic pipe sleeved inside the working cylinder, one end of the working cylinder is connected with the fixing plate in a matched mode, and the other end of the working cylinder is provided with a sliding block used for being abutted to the swinging plate.

As a further improvement, a sliding groove is formed on the side, close to the fixed plate, of the swinging plate, the sliding block is hinged with the telescopic pipe, and the sliding block is configured to move along the sliding groove through the telescopic pipe.

As a further improvement, an iron block is provided on the side of the telescopic tube close to the fixed plate, a partition plate is provided on the side of the operating cylinder close to the swinging plate, the telescopic tube is disposed through the partition plate, an electromagnetic coil winding is accommodated on the side of the partition plate away from the iron block, and the telescopic tube is configured to extend toward the side of the swinging plate along the axis of the operating cylinder when the electromagnetic coil winding is energized.

As a further improvement, an elastic piece is arranged between the iron block and the fixed plate, and when the electromagnetic coil winding is powered off, the telescopic pipe is driven to return to the initial position.

As a further improvement, the iron block is welded with the extension pipe, and the extension pipe is configured to have the longest length extending out of the working cylinder when the iron block abuts against the partition plate.

As a further improvement, the electromagnetic coil winding is electrically connected with the control component, and an impact signal is transmitted to the control component through an impact sensor so as to electrify the electromagnetic coil winding.

The automobile seat comprises a seat body and the headrest, wherein the headrest is arranged at a position, close to the head of a user, of the seat body.

By adopting the technical scheme, the invention can obtain the following technical effects:

the utility model provides a headrest through the swing of control swing board to make the main part have the bellied guard state of forward inside, when the emergence vehicle collision, can give user's head support from rear and side of head, thereby avoid when taking place vehicle side collision, do not have the side protection, lead to user's head to take place the displacement, cause to wave the whip injury. The advantages of the present application are apparent compared to the prior art.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a left side view of FIG. 2;

FIG. 5 is a schematic diagram of a structure of the invention after hiding a main body;

FIG. 6 is a partial cross-sectional view of one embodiment of the present invention;

FIG. 7 is an enlarged view of A in FIG. 6;

FIG. 8 is a schematic view of a telescoping tube of one embodiment of the invention in an initial position;

figure 9 is a schematic view of the telescopic tube of figure 8 in an extended state.

Icon: 100-a body; 110-a fixed plate; 200-a swing assembly; 210-a wobble plate; 211-a convex part; 212-a sliding groove; 300-a telescoping assembly; 310-a working cylinder; 311-a separator; 320-telescoping tube; 321-iron block; 330-a slide block; 340-electromagnetic coil windings; 350-elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Examples

With reference to fig. 1 to 9, the present embodiment provides a headrest including: the main body 100 has an accommodating space therein, a surface of the main body 100 is formed by sewing an elastic material, and a cavity between the accommodating space and the surface is filled with a sponge, but not limited thereto. The swing assembly 200 is disposed in the accommodation space, and the main body 100 is configured to be switched between the shielding state and the deployed state by the swing assembly 200.

The swing assembly 200 has a swing plate 210, the swing plate 210 is connected to the telescopic assembly 300 in a fitting manner, when the control assembly (not shown) drives the telescopic assembly 300 to extend, the swing plate 210 swings forward and inward (with the direction close to the user side as the front), at this time, the main body 100 is in a protection state, when the main body 100 protrudes forward and inward along with the swing plate 210 or when the telescopic assembly 300 returns to the initial position, the swing plate 210 unfolds backward (with the direction away from the user side as the rear), at this time, the main body 100 is in an unfolded state.

It should be noted that, in the present embodiment, by controlling the swinging of the swinging plate 210, the main body 100 has a protection state of protruding forward and inward, and when a vehicle collision occurs, the head can be supported by the user from the rear and the side of the head, so as to avoid that the head of the user is displaced and whiplash injury is caused due to no side protection when the vehicle side collision occurs.

Specifically, the swing assemblies 200 are symmetrically arranged in two groups along the central line of the main body 100, and when the main body 100 is in the protection state, the surface of the main body 100 close to the user is U-shaped. The head of the user can be arranged in the U-shaped structure, so that the rear part and the side surface of the head are limited, and the head cannot be greatly displaced to cause injury to a human body. When in the unfolding state, the middle part of the body is slightly concave, which accords with human engineering and is beneficial to the relaxation of the neck of a human body,

on the basis of the above embodiments, in an alternative embodiment of the present invention, the main body 100 is provided with a fixed plate 110 (a flat plate disposed to follow the outer periphery of the main body) near the seat side, the swing plate 210 is hinged to the fixed plate 110, and the angle between the swing plate 210 and the fixed plate 110 is controlled by the telescopic assembly 300. In which a rigid plate is used for both the fixed plate 110 and the swing plate 210 to ensure stability of the swing plate 210 during swinging. In another embodiment, the swing plate 210 is provided with a plurality of protrusions 211 protruding uniformly and having a hemispherical cross section near the user side to increase the friction between the swing plate 210 and the filled sponge in the body 100, so that the sponge moves in a desired direction.

In another embodiment, the telescopic assembly 300 comprises a cylinder 310 and a telescopic tube 320 sleeved inside the cylinder 310, wherein one end of the cylinder 310 is connected to the fixed plate 110, and the other end is configured with a sliding block 330 for abutting against the swing plate 210. The swing plate 210 has a slide groove 212 formed on a side thereof adjacent to the fixed plate 110, a slider 330 is hinged to the telescopic tube 320, and the slider 330 is configured to move along the slide groove 212 via the telescopic tube 320. In this embodiment, the cylinder 310 is fixedly connected to the fixed plate 110 by a bolt, so that the extension and retraction direction of the extension tube 320 is determined, and when the extension tube 320 extends to the outside of the cylinder 310, the slider 330 moves along the sliding groove 212 and swings forward and inward while abutting against the swing plate 210; when the bellows 320 returns to the initial position, the slider 330 exerts a pulling force on the swing plate 210 to swing the swing plate 210 rearward and outward.

In the present embodiment, the slider 330 is provided with a flange, the sliding groove 212 is a T-shaped groove, and the flange of the slider 330 is fittingly engaged with the T-shaped groove so that the slider 330 can swing in contact with the swing plate 210 when the telescopic tube 320 is extended. In the process of returning the bellows 320 to the initial position, the slider 330 can apply a force to the swing plate 210, so that the swing plate 210 is reset.

Preferably, referring to fig. 7, an iron block 321 is provided on the extension tube 320 near the fixed plate 110, a partition 311 is provided on the cylinder 310 near the swing plate 210, the extension tube 320 is disposed through the partition 311, an electromagnetic coil winding 340 is accommodated on the partition 311 far from the iron block 321, and the extension tube 320 is configured to extend toward the swing plate 210 along the axis of the cylinder 310 when the electromagnetic coil winding 340 is energized. When the electromagnetic coil winding group is energized, an electromagnetic force is generated, and the attraction iron block 321 moves in the direction of the electromagnetic coil winding group. In this embodiment, the extension tube 320 is an aluminum tube, the iron block 321 is welded to the extension tube 320, and the extension tube 320 is extended to the outside of the cylinder 310 when the iron block 321 is moved in the direction of the solenoid winding group.

Preferably, an elastic member 350 (e.g., a spring) is disposed between the iron block 321 and the fixing plate 110, and drives the telescopic tube 320 to return to the initial position when the electromagnetic coil winding 340 is de-energized. For example, when the electromagnetic coil winding 340 is energized, the iron block 321 moves toward the electromagnetic coil winding 340 against the elastic force of the elastic member 350; when the solenoid winding 340 is de-energized, the resilient member 350 provides a restoring force to pull the iron 321 back to the original position.

It should be noted that the bellows 320 is configured such that when the iron block 321 abuts the partition 311, the length of the bellows 320 extending out of the cylinder 310 is the longest. It is easily understood that, in the present embodiment, the moving distance of the bellows 320 is limited by the arrangement of the partition 311, thereby controlling the angle of swing of the swing plate 210.

In an alternative embodiment of the present invention based on the above embodiment, the electromagnetic coil winding 340 is electrically connected to a control component (e.g., a PCB board), and an impact signal is transmitted to the control component through an impact sensor to energize the electromagnetic coil winding 340. The working principle of the collision sensor is the prior art, and is not described herein again.

Another embodiment provides an automobile seat, which includes a seat body and the headrest as described above, wherein the headrest is disposed at a position of the seat body close to the head of the user.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention.

Claims

1. A headrest, comprising: a main body having an accommodating space therein, and a swing member disposed in the accommodating space; the body is configured to be switched between a shielding state and a deployed state by the swing assembly;

the swinging assembly is provided with a swinging plate, the swinging plate is in adaptive connection with the telescopic assembly, and when the control assembly drives the telescopic assembly to extend, the swinging plate swings forwards and inwards and is in a protection state corresponding to the main body protruding forwards and inwards; or when the telescopic assembly returns to the initial position, the swinging plate is unfolded backwards and outwards and is in an unfolded state corresponding to the main body;

the main body is provided with a fixed plate close to the seat side, and the swinging plate is hinged with the fixed plate; the telescopic assembly comprises a working cylinder and a telescopic pipe sleeved in the working cylinder, one end of the working cylinder is connected with the fixed plate in a matched mode, and the other end of the working cylinder is provided with a sliding block used for abutting against the swinging plate; the swing plate is provided with a sliding groove close to the fixed plate side, the sliding block is hinged with the telescopic pipe, and the sliding block is configured to move along the sliding groove through the telescopic pipe; an iron block is arranged on the side, close to the fixed plate, of the telescopic pipe, a partition plate is arranged on the side, close to the swing plate, of the working cylinder, the telescopic pipe is arranged through the partition plate, electromagnetic coil windings are accommodated on the side, far away from the iron block, of the partition plate, and the telescopic pipe is configured to extend towards the side, close to the swing plate, of the axial line of the working cylinder when the electromagnetic coil windings are electrified; the electromagnetic coil winding is electrically connected with the control assembly, and a collision signal is transmitted to the control assembly through a collision sensor so as to electrify the electromagnetic coil winding.

2. The headrest of claim 1, wherein the two sets of the swing assemblies are symmetrically arranged along a center line of the main body, and a surface of the main body adjacent to a user is U-shaped when the main body is in a protection state.

3. The headrest of claim 1, wherein an elastic member is disposed between the iron block and the fixing plate, and when the electromagnetic coil winding is de-energized, the telescopic tube is driven to return to an initial position.

4. The headrest according to claim 3, wherein the iron block is welded to the telescopic tube, and the telescopic tube is configured such that a length of the telescopic tube extending out of the operating cylinder is longest when the iron block abuts against the diaphragm.

5. A car seat comprising a seat body and a headrest according to any one of claims 1 to 4, the headrest being disposed at a position where the seat body is close to the head of a user.