WO2016113413A1

WO2016113413A1 - Headrest device

Info

Publication number: WO2016113413A1
Application number: PCT/EP2016/050819
Authority: WO
Inventors: Thomas Dillinger
Original assignee: Johnson Controls Gmbh
Priority date: 2015-01-15
Filing date: 2016-01-15
Publication date: 2016-07-21
Also published as: DE102015200554A1; DE102015200554B4

Abstract

The invention relates to a headrest device (100), wherein said headrest device (100) comprises a plurality of planar pivoting bodies (102) which are arranged next to one another in a plane and are pivotable in different directions about different pivot axes (202, 204), wherein the different pivot axes (202, 204) all lie in the plane and the pivoting movements about the pivot axes (202, 204) of the plurality of planar pivoting bodies (102), which are arranged next to one another in a plane, are independent of each other.

Description

DESCRIPTION

Title Headrest device prior art

The present invention relates to a headrest device for a vehicle.

The prior art does not disclose a head restraint device for a vehicle that adapts to the particular anatomy of a human head and thereby meets safety standards for crash safety to prevent head trauma or neck fracture.

Disclosure of the invention

It is an object of the present invention to provide a headrest device which adapts to the individual anatomy of a human head while adhering to safety standards for preventing head trauma or neck fracture in the event of a crash.

The object of the present invention is achieved by a head restraint device in which the head restraint device has a plurality of planar pivot bodies arranged side by side in a plane, which are pivotable in different directions about different pivot axes, wherein the various pivot axes all lie in the plane and the pivots of a plurality of plane in the plane juxtaposed planar pivot body about the pivot axes are independent of each other.

Compared to the prior art, the headrest device according to the invention has the advantage that the headrest device can optimally adapt to the individual anatomy of a human head, without neglecting safety standards for the protection of the head and cervical spine of a vehicle occupant. By segmentation of the head support surface in mutually independent, pivotable in relation to the support surface, hard swivel body, which may consist of plastic, for example, not only a comfortable head rest surface is provided, but also the necessary Stable support in the event of a thrown back the head delivered in the event of a crash. The headrest device according to the present invention is in particular a motor vehicle headrest device. In a further embodiment, it is provided that the swivel bodies comprise at least three pads which can be mounted on a head of a user facing side of a headrest, wherein the headrest device further comprises at least three connecting elements, which are adapted to the at least three pads to make the swivels around the different pivot axes.

This has the advantage that a conventional headrest can be retrofitted at any time with the headrest device according to the invention, whereby a high degree of compatibility and individual adaptability is given. In a further embodiment, it is provided that the at least three pads are hollow cylinders, wherein the hollow cylinders have only on their side facing the user's head a closed end face, wherein the hollow cylinder axially each having an inner cylinder whose radius is smaller than that of the respective hollow cylinder is, wherein the respective axially disposed inner cylinder on the side remote from the head of the user has a groove which is adapted to receive a cylindrical structure of one of the at least three connecting elements.

As a result, the weight of the additional mountable headrest device is kept low in an advantageous manner.

In a further embodiment, the at least three connecting elements each have at one end of their axis the cylindrical structure, which is arranged perpendicular to the respective axis and adapted to be pivotally received in the groove of the respective pad, wherein a first pivoting of the swivels of respective pads around the cylindrical structure of the respective connecting element of the at least three connecting elements is made possible, wherein the cylindrical structure represents a first pivot axis.

Advantageously, the degree of freedom of movement of the support surface of the respective pad is thus increased by a simple plug connection by a pivoting movement about the cylindrical structure. In a further embodiment, the respective connecting element at the other end of the axle has an armature-like structure, which is designed to allow a second pivoting of the connecting element about a second pivot axis, wherein the second pivot axis lies in a plane formed by the headrest.

This advantageously achieves the fact that the respective pedestal can be fastened to a conventional headrest and at the same time the degree of freedom of movement of the support surface of the respective pad is again increased by a further degree of freedom with an additional pivotability orthogonal to the previous pivoting about the cylindrical structure.

In another embodiment, the respective connecting element is pivotally mounted about its axis on the head of the user facing side of the headrest, wherein the axis represents a third pivot axis, which is perpendicular to the first and the second pivot axis.

As a result, a pivoting of the respective pads about its axis is realized in an advantageous manner in order to comprehend as far as possible upward and downward movements of a resting head.

In another embodiment, the respective hollow cylinder and the respective inner cylinder injection molded plastic parts.

As a result, the production process for producing the pads is advantageously simplified and cost-effective.

In a further embodiment, the plurality of flat pivot bodies arranged side by side in a plane are at least three polygonal elements embedded in a plane of an elastic material spaced apart from each other, the plane being framed by a support frame made of a high strength material.

This has the advantage that, while maintaining safety standards for protecting the cervical spine and the skull of a vehicle occupant in the event of a crash, the head rest can be adapted to the individual anatomy of the respective human head. In a further embodiment, the at least three polygonal elements are embedded in the plane in such a way that mutually facing edges of the at least three polygonal elements run parallel and, coming from the carrier frame, run towards the center of the plane without cutting.

This has the advantage that the individual headrest segments can be tilted simultaneously in the direction of the center of gravity of the headrest weight and, in the event of a crash, in the event of a backward spin of the head, impact energy can be optimally absorbed. At the same time the strongest curvature of the human occiput is usually taken into account.

In a further embodiment, each of the at least three polygonal elements is provided at its edges with an additional coating of the elastic material.

This prevents in an advantageous manner that in the event of a crash, the head support segments push each other, which could lead to significant head injury cuts.

In a further embodiment, the elastic material is a thermoplastic elastomer.

As a result, the emitted human body heat of the respective vehicle occupant can be utilized in an advantageous manner for optimum adaptation of the head support surface to the respective individual anatomy of the head.

In a further embodiment, each of the at least three polygonal elements and / or the support frame is in each case an injection-molded part made of plastic.

This advantageously simplifies the production process and enables a cost-effective production of the headrest device, even in large quantities.

In a further embodiment, the elastic material in the production of the injection molded parts can be injected into an original casting mold of the injection molded parts. This has the advantage that production processes can be saved. In a further embodiment, the at least three polygonal elements are each pivotally coupled in different directions to a support plate of the headrest by means of a universal joint. As a result, pivoting of the headrest segments are effectively supported by predefinable pivot axes.

In an alternative embodiment of the invention, the headrest device has at least one planar pivot body, which is pivotable about different pivot axes in different directions, the various pivot axes are all in at least one plane and the pivoting of the at least one planar pivot body about the pivot axes are independent. According to a first variant of such an embodiment, the headrest device thus comprises only a single pivoting body. Alternatively, however, according to a further variant, it is provided that the head restraint device has a plurality of pivot bodies, in particular two pivot bodies or three pivot bodies or four pivot bodies or fifth pivot bodies. In the event that a plurality of pivot bodies are provided, it is further preferred according to the invention that these pivot bodies lie on several levels.

In a further alternative embodiment of the invention, the at least one planar swivel body comprises at least one pedestal, which is mountable on one of the head of a user facing side of a headrest, wherein the headrest device further comprises at least one connecting element which is adapted to the at least one Päd the Swivels around the different pivot axes perform. This embodiment includes only a single large paed.

In a further alternative embodiment according to the invention, which has a plurality of swivel bodies, at least one connecting element per swivel body is provided. In a further alternative embodiment, at least one connecting element per person is provided.

In a further alternative embodiment, the at least one connecting element is integrated in the at least one pivoting body. In a further alternative embodiment, the at least one connecting element is integrated into the at least one pedestrian. Each of these alternative embodiments according to the invention can be combined with at least one of the other alternative embodiments according to the invention and / or with at least one of the other named embodiments according to the invention, at least insofar as not legally.

Further details, features and advantages of the invention will become apparent from the drawings, as well as from the following description of preferred embodiments with reference to the drawings. The drawings illustrate only exemplary embodiments of the invention, which do not limit the essential idea of the invention.

Brief description of the figures

Figure 1 shows a headrest device with three pads.

FIG. 2 shows a pedestrian in individual view with a view of the head support surface. FIG. 3 shows the pedestal from a perspective opposite the support surface.

FIG. 4 shows a connecting element. FIG. 5 shows an embodiment of the headrest device with a plurality of polygonal elements arranged next to one another in a plane.

Embodiments of the invention

FIG. 1 shows a headrest device 100 which has three pads 102 which can be mounted on a conventional headrest 104. An end user can mount these pads according to his individual preferences arranged arbitrarily on the headrests of his vehicle. When the head is placed on the pads, they automatically assume an optimally tilted position to match the anatomy of each human head. FIG. 2 shows a pedestal 102 in individual representation from the perspective of the side facing the head of a user. In the embodiment shown in Figure 2, the pedestal is flat-cylinder-like, with the head facing end face 206 of the flat cylinder is closed and represents a part of the support surface for a human head. In order that the bearing surface of the anatomy of the respective human head can be adapted, the support surface formed by the end face 206 is pivotable in different directions, wherein the pivot axes 202 and 204 in a plane, the support surface, and are mutually perpendicular. In the illustrated embodiment, the pedestal 102 is also pivotable about a further pivot axis 208 perpendicular to the pivot axes 202 and 204 to yield upward and downward movements of the human head, eg when driving over bumps on the road.

Figure 3 shows the pedestal 102 from a perspective away from the head support surface. The pedestal 102 consists of a flat hollow cylinder 302. Axially in the hollow cylinder 302, an inner cylinder 304 is arranged, on whose end remote from the head support surface there is a groove 306.

FIG. 4 shows a connecting element 400 whose cylindrical structure 402 can be inserted pivotably into the groove 305 of the pad 102. As a result, a pivoting of the pad 102 about the pivot axis 204 can be realized. At the other end of the axis 404 of the connecting element 400 is an armature-like structure 406, which can be pivotally anchored, for example, in a support plate of a headrest 104. As a result, a pivoting of the bearing surface formed by the end face 206 of the pad 102 around the pivot axis 202 is made possible. In a further embodiment, the connecting element 400 can be coupled pivotably about its axis 404 to a carrier plate of a headrest 104, whereby pivoting of the bearing surface of the pad 102 formed by the end face 206 about the pivot axis 208 can be realized.

FIG. 5 shows a further embodiment of the head restraint device 100, wherein the plurality of planar pivot bodies arranged next to one another in a plane are three polygonal elements 502a, 502b, 502c, for example made of plastic, which are embedded in a plane of an elastic material 508 spaced apart from one another and wherein the elastic plane is framed by a support frame 506 made of a high strength material, eg plastic. Like the pads described above, the three polygonal elements 502a, 502b, 502c are pivotally mounted about the pivot axes 202 and 204 in an analogous manner to conform to the individual anatomy of the human head as it rests against the headrest device. This is possible because the elastic material 508, in wel When the three polygonal elements 502a, 502b, 502c are embedded, it behaves like an expandable and contractible 'membrane' which allows for pivotal movements of the harder material polygonal elements 502a, 502b, 502c. The number of polygonal elements 502a, 502b, 502c is arbitrary. In a further embodiment, the polygonal elements can each be pivotally coupled in different directions to a support plate of the headrest 104 by means of a universal joint. When the polygonal elements are embedded in the elastic material such that facing edges 504a, 504b, 504c of the polygonal elements are parallel and, coming from the support frame 506, run toward the center of the support surface without intersecting, the polygonal elements tilted towards the center of the support surface at the same time, whereby the focus of the head weight and the anatomy of the human head can be taken into special account.

LIST OF REFERENCE NUMBERS

100 headrest device

102 Päd

202 pivot axis

204 pivot axis

206 face

208 pivot axis

302 hollow cylinder

304 inner cylinder

306 groove

400 connecting element

402 cylindrical structure

404 axis

406 anchor similar structure

502a, 502b, 502c polygonal elements

504a, 504b, 504c edges

506 support frame

508 elastic material

Claims

1 . Headrest device (100), characterized in that the head restraint device (100) comprises a plurality of planar pivot bodies juxtaposed in a plane which are pivotable in different directions about different pivot axes (202, 204), the various pivot axes (202, 204) all in lie the plane and the pivoting of the plurality of plane in the plane juxtaposed planar pivot body about the pivot axes (202, 204) are independent of each other.

2. headrest device (100) according to claim 1, characterized in that the

Swivel bodies comprise at least three pads (102) mountable on one of the head of a user facing side of a headrest (104), the headrest apparatus (100) further comprising at least three connecting elements (400) formed thereon, the at least three Pads (102) to make the pivoting about the various pivot axes (202, 204).

3. headrest device (100) according to any one of the preceding claims, characterized in that the at least three pads (102) are hollow cylinder (302), wherein the hollow cylinder (302) only at its the user's head side facing a closed end face (206) wherein the hollow cylinder (302) axially each have an inner cylinder (304) whose radius is smaller than that of the respective hollow cylinder (302), wherein the respective axially disposed inner cylinder (304) on the side facing away from the user's head a groove ( 306) adapted to receive a cylindrical structure (402) of one of the at least three connecting elements (400).

4. Headrest device (100) according to any one of the preceding claims, characterized in that the at least three connecting elements (400) at one end of its axis (404) each have the cylindrical structure (402) which is arranged perpendicular to the respective axis (404) and adapted to be pivotably received in the groove (306) of the respective pad (102), wherein a first pivoting of the pivots of the respective pad (102) about the cylindrical structure (402) of the respective connecting element (400) of the at least three Connecting elements (400) is possible, wherein the cylindrical structure (402) is a first pivot axis (204).

5. headrest device (100) according to any one of the preceding claims, characterized in that the respective connecting element (400) at the other end of the axle (404) has an armature-like structure (406) which is adapted to a second pivoting of the connecting element (40) 400) to enable a second pivot axis (202), the second pivot axis (202) lying in a plane formed by the headrest (104).

6. headrest device (100) according to any one of the preceding claims, characterized in that the respective connecting element (400) is pivotally mounted about its axis (404) on the head of the user facing side of the headrest, wherein the axis of a third pivot axis ( 208) which is perpendicular to the first and second pivot axes (202, 204).

7. headrest device (100) according to any one of the preceding claims, characterized in that the respective hollow cylinder (302) and the respective inner cylinder (306) are injection molded parts made of plastic.

8. headrest device (100) according to any one of the preceding claims, characterized in that the connecting element (400) is designed as a universal joint.

9. headrest device (100) according to any one of the preceding claims, characterized in that the plurality of juxtaposed in a plane planar pivot body at least three polygonal elements (502a, 502b, 502c), which in a plane of an elastic material (508) from each other are spaced apart, wherein the plane is framed by a support frame made of a material with high strength.

10. headrest device (100) according to any one of the preceding claims, characterized in that the at least three polygonal elements (502a, 502b, 502c) are embedded in the plane such that facing edges (504a, 504b, 504c) of the at least three polygonal Elements (502a, 502b, 502c) are parallel and - coming from the support frame (506) - run towards the center of the plane without intersecting.

1 1. Headrest device (100) according to one of the preceding claims, characterized in that each of the at least three polygonal elements (502a, 502b, 502c) is provided at its edges (504a, 504b, 504c) with an additional coating from the elastic table material (508).

12. Headrest device (100) according to any one of the preceding claims, characterized in that the elastic material (508) is a thermoplastic elastomer.

13. Headrest device (100) according to any one of the preceding claims, characterized in that each of the at least three polygonal elements (502a, 502b, 502c) and / or the support frame (506) is in each case an injection molded part made of plastic.

14. Headrest device (100) according to any one of the preceding claims, characterized in that the elastic material (508) in the production of the injection molded parts can be injected into an original mold of the injection molded parts.

15. headrest device (100) according to any one of the preceding claims 9-14, characterized in that the at least three polygonal elements (502a, 502b, 502c) are each coupled by means of a universal joint pivotally in different directions to a support plate of the headrest (104).