CN220662344U

CN220662344U - Automobile seat headrest

Info

Publication number: CN220662344U
Application number: CN202322414089.3U
Authority: CN
Inventors: 陈宗义
Original assignee: Shanghai Jifeng Seating Co ltd
Current assignee: Shanghai Jifeng Seating Co ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-03-26
Anticipated expiration: 2033-09-06

Abstract

The utility model relates to the technical field of automobile headrests, and discloses an automobile seat headrest, which comprises a supporting rod, wherein the automobile seat headrest is supported on an automobile seat through the supporting rod, and the automobile seat headrest further comprises: the headrest body is connected with the support rod or integrally formed, the headrest body comprises a headrest support, and a non-Newtonian fluid filling piece is arranged on one side, close to a passenger sitting on the automobile seat, of the headrest support; the non-newtonian fluid filling member can be pressed inwardly when the head of the occupant is supported on the headrest of the car seat. The utility model has the advantages that the non-Newtonian fluid filling piece is arranged in the headrest main body, the dual requirements of dynamic whipping detection and static resting of the head of a passenger for the seat headrest can be met by utilizing the characteristic that the non-Newtonian fluid is strong when the non-Newtonian fluid is weak when the non-Newtonian fluid is strong when the non-Newtonian fluid is weak, and the whole structure of the automobile seat headrest is simple.

Description

Automobile seat headrest

Technical Field

The utility model relates to the technical field of automobile headrests, in particular to an automobile seat headrest.

Background

At present, the types of automobile seat headrests on the market are many, and the comfort of the seat headrest and the whipping performance of the seat are two important design indexes when the seat headrest is designed, as shown in the attached drawing 1 of the specification, the distance (a backset value) between the A surface of the seat headrest and the head 3 of a dummy influences the comfort of the seat and the whipping performance of the seat, and the comfort of the seat headrest with a large backset value is relatively good, but is unfavorable for the whipping performance of the seat, whereas, the whipping performance of the seat is favorable for the small backset value, but the comfort is relatively poor.

In order to solve the above problems, four-way adjustment (up and down) and active headrest are generally adopted in the market at present to consider both the comfort and whipping performance of the headrest. However, the four-way adjustment headrest and the active headrest itself or the seat are complex in structure and high in cost.

Disclosure of Invention

Aiming at the defects existing in the prior art, the technical problems to be solved by the utility model are as follows: the automobile seat headrest not only can effectively meet the whipping performance of the seat, but also is high in comfort.

The technical scheme adopted for solving the technical problems is that the utility model provides an automobile seat headrest, which comprises a supporting rod, wherein the automobile seat headrest is supported on an automobile seat through the supporting rod, and the automobile seat headrest further comprises:

the headrest main body is connected with the supporting rod or integrally formed, the headrest main body comprises a headrest support, and a non-Newtonian fluid filling piece is arranged on one side, close to a passenger sitting on the automobile seat, of the headrest support;

the non-newtonian fluid filling member may be pressed inwardly when the head of the occupant is supported on the car seat headrest.

Further, the non-newtonian fluid filler is a non-newtonian fluid polyurethane.

Further, the headrest body further includes:

a headrest foam wrapping the headrest support or wrapping the headrest support and the non-newtonian fluid filler;

the headrest cover is coated on the outer side of the headrest foam, and the headrest support and the non-Newtonian fluid filling piece are both coated in the headrest cover.

Further, a distance between the headrest face cover and the non-newton fluid filling member is greater than or equal to 8 millimeters; or, the headrest face sleeve is attached to the non-Newtonian fluid filler.

Further, a mounting groove is formed in the headrest support and close to the non-Newtonian fluid filling member, and the non-Newtonian fluid filling member is arranged in the mounting groove.

Further, a circle of convex edges are arranged on the circumference of the mounting groove, and the non-Newtonian fluid filling piece is abutted against the circle of convex edges.

Further, the support rod, the headrest support and the non-Newtonian fluid filling piece are arranged behind the headrest face sleeve and are integrally foamed with the headrest for filling and forming.

Further, the headrest support is made of EPP material.

Further, a clamping groove is formed in one side, away from the non-Newtonian fluid filling piece, of the headrest support, and the support rod is clamped and fixed in the clamping groove.

Further, a plurality of clamping blocks are protruded from the side wall of the clamping groove;

the support rod comprises a first support rod, a connecting rod and a second support rod which are sequentially bent integrally, and the first support rod, the connecting rod and the second support rod are propped against the clamping block.

Compared with the prior art, the utility model has at least the following beneficial effects:

according to the utility model, the non-Newtonian fluid filling piece is arranged on one side of the headrest main body, which is close to the head of a passenger, and when the seat performs a whipping experiment, the impact force rapidly acts on the headrest main body, so that the viscosity of the non-Newtonian fluid filling piece is increased, the non-Newtonian fluid filling piece is instantly hardened, and the non-Newtonian fluid filling piece has high hardness, and can effectively meet the whipping experiment requirement of the seat; when the head of the passenger leans against the headrest, the non-Newtonian fluid filling member has small viscosity, is very soft, has good shock absorption effect, and can effectively improve the comfort of the passenger. The dynamic whipping detection and static resting double requirements of the head of a passenger on the seat headrest can be met by utilizing the characteristics of strong and weak strength of the non-Newtonian fluid, and the whole structure of the automobile seat headrest is simple.

Drawings

FIG. 1 is a schematic diagram of a headrest and a dummy of an automobile seat during a test;

FIG. 2 is a schematic view of the structure of the headrest of the car seat according to the present utility model;

FIG. 3 is a schematic plan view of an automotive seat headrest;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic illustration of the assembly of the support bar, headrest support and non-Newtonian fluid filler;

fig. 6 is a schematic view of the structure of fig. 5 from another view angle.

In the figure:

1. a support rod; 11. a first stay; 12. a connecting rod; 13. a second stay bar;

2. a headrest body; 20. a headrest support; 201. a mounting groove; 202. a convex edge; 203. a clamping groove; 204. a clamping block; 21. a non-newtonian fluid filling member; 22. foaming the headrest; 23. a headrest cover;

3. and (5) a dummy.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The automobile seat whipping experiment is mainly used for reducing the injury of passengers as much as possible after the automobile is in rear-end collision, and when the score of the whipping experiment is higher, the protection effect on the passengers is better, and the protection effect is poorer as the score is lower.

As shown in fig. 2 to 4, a car seat headrest, which comprises a support rod 1, and is supported on a car seat by the support rod 1, further comprises: the headrest body 2 is connected with the support rod 1 or integrally formed, the headrest body 2 comprises a headrest support 20, and a non-newton fluid filling member 21 is arranged on one side of the headrest support 20, which is close to a passenger sitting on an automobile seat, specifically, the non-newton fluid filling member 21 of the embodiment can be but is not limited to non-newton fluid polyurethane, and the characteristics of excellent shock absorption performance under the action of slow impact force and instant hardening under the action of large impact force are utilized, so that the non-newton fluid filling member can meet various situations of the automobile seat headrest in whipping experiments and practical use of the passenger. When the head of the passenger is supported on the headrest of the car seat, the head of the passenger can directly or indirectly press the non-newton fluid filling member 21 inwards, and the non-newton fluid filling member 21 is soft at this time, so that the comfort of the passenger is high.

It should be noted that a non-newtonian fluid is a fluid that does not satisfy newtonian viscosity experimental law and that has a non-linear relationship between shear force and shear strain rate. That is, the non-newtonian fluid material is a material away from the anti-newtonian fluid, and changes its viscosity when the shear force acting on the non-newtonian fluid is changed. The relation between the impact force and the impact force acting on the impact force is that the impact force is strong when the impact force is weak, namely the impact force acting on the impact force is larger, and the strength of the impact force is higher; when the impact force is extremely strong, the non-Newtonian fluid temporarily becomes a solid, and the hardness of the non-Newtonian fluid is extremely high; the smaller the impact force acting on it, the less its strength. Therefore, by utilizing the special performance of the non-Newtonian fluid, the non-Newtonian fluid filling member 21 is arranged in the headrest main body 2 of the embodiment, so that the dual requirements of dynamic whipping detection and static resting of the head of a passenger for the seat headrest can be met, and the realization mode is simple.

In this embodiment, the headrest support 20 is made of EPP, i.e., polypropylene foam, which has a light specific gravity, good compression-resistant, buffering and heat-insulating properties, good mechanical strength, and recycling properties, and is widely used in automobiles, such as bumper cores, anti-collision blocks, and inner lining members of ceilings.

In this embodiment, the non-newton fluid filling member 21 is disposed on the side of the headrest main body 2 near the head of the passenger, and when the seat performs the whipping experiment, the impact force rapidly acts on the headrest main body 2, so that the viscosity of the non-newton fluid filling member 21 becomes large, and the non-newton fluid filling member is instantly hardened, has high hardness, and can effectively meet the whipping experiment requirement of the seat; when the head of the passenger leans against the headrest, the non-newtonian fluid filling member 21 is very soft and soft, and has a good shock absorbing effect, thereby effectively improving the comfort of the passenger. The dynamic whipping detection and static resting double requirements of the head of a passenger on the seat headrest can be met by utilizing the characteristics of strong and weak strength of the non-Newtonian fluid, and the whole structure of the automobile seat headrest is simple.

As shown in fig. 4 to 6, the headrest body 2 includes, in addition to the headrest support 20 and the non-newtonian fluid filling member 21, the headrest body 2: a headrest foam 22 and a headrest cover 23, wherein the headrest foam 22 encapsulates the headrest support 20 or encapsulates the headrest support 20 and the non-newtonian fluid filler 21. The headrest cover 23 is wrapped around the outside of the headrest foam 22, and both the headrest support 20 and the non-newtonian fluid filler 21 are wrapped within the headrest cover 23. When the headrest foam 22 only wraps the headrest support 20 and does not wrap the non-Newtonian fluid filling member 21, the non-Newtonian fluid filling member 21 is directly attached to the headrest face cover 23; when the headrest foam 22 is wrapped around both the headrest support 20 and the non-newtonian fluid filler 21, then the headrest cover 23 is wrapped directly around the headrest foam 22. In this embodiment, the headrest foam 22 preferably wraps both the headrest support 20 and the non-newton fluid filling member 21, and the distance between the headrest cover 23 and the non-newton fluid filling member 21 is 8 mm or more, so that the process is easy to implement, and the molding quality is ensured.

In the actual manufacturing process, after the support rod 1, the headrest support 20 and the non-newton fluid filling member 21 are arranged in the headrest surface sleeve 23, the support rod is integrally foam-molded with the headrest foam 22, so that the overall consistency effect of the headrest of the automobile seat is ensured, and the effect of manually coating the headrest surface sleeve 23 in the later period is poor for some special-shaped headrest main bodies 2.

The non-newtonian fluid filler 21 is specifically mounted to the headrest support 20 in the following manner: a mounting groove 201 is provided on the headrest support 20 on the side close to the non-newtonian fluid filling member 21, and the non-newtonian fluid filling member 21 is provided in the mounting groove 201. And the circumference of mounting groove 201 is equipped with round protruding edge 202, and non-Newtonian fluid filling member 21 offsets with round protruding edge 202, and round protruding edge 202 limits the deformation scope of non-Newtonian fluid filling member 21, guarantees that passenger's head has fine comfort when leaning on headrest main part 2A face.

More specifically, a clamping groove 203 is formed in the side, away from the non-newtonian fluid filling member 21, of the headrest support 20, and the support rod 1 is clamped and fixed in the clamping groove 203. Wherein, a plurality of clamping blocks 204 are protruded on the side wall of the clamping groove 203, the supporting rod 1 comprises a first supporting rod 11, a connecting rod 12 and a second supporting rod 13 which are sequentially and integrally bent, and the clamping blocks 204 are propped against the first supporting rod 11, the connecting rod 12 and the second supporting rod 13. The support rod 1 and the seat support are simple to install and high in structural stability.

Claims

1. An automobile seat headrest comprising a support bar, and the automobile seat headrest is supported on an automobile seat by the support bar, characterized in that the automobile seat headrest further comprises:

when the head of the passenger is supported on the headrest of the automobile seat, the non-Newtonian fluid filling member can be pressed inwards;

the headrest support is provided with a mounting groove at the side close to the non-Newtonian fluid filling piece, and the non-Newtonian fluid filling piece is arranged in the mounting groove; and a circle of convex edges are arranged on the circumference of the mounting groove, and the non-Newtonian fluid filling piece is propped against the circle of convex edges.

2. The automotive seat headrest of claim 1, wherein the non-newtonian fluid filler is a non-newtonian fluid polyurethane.

3. The car seat headrest according to claim 1 or 2, characterized in that the headrest body further comprises:

4. The car seat headrest of claim 3, wherein a distance between the headrest face cover and the non-newtonian fluid filler is 8 millimeters or more; or, the headrest face sleeve is attached to the non-Newtonian fluid filler.

5. The car seat headrest of claim 3, wherein the support bar, the headrest support and the non-newtonian fluid filler are configured to foam integrally with the headrest after the headrest cover.

6. The car seat headrest of claim 1, wherein the headrest support is EPP material.

7. The car seat headrest of claim 1, wherein a side of the headrest support away from the non-newtonian fluid filling member is provided with a clamping groove, and the support rod is clamped and fixed in the clamping groove.

8. The car seat headrest according to claim 7, wherein a plurality of clamping blocks protrude from side walls of the clamping grooves;