HEADREST FOR MOTOR VEHICLE SEATS

Abstract: Headrest for motor vehicle seats wherein the cushion (14) is connected to the support structure (12) so as to be able to assume, in use, a lowered position for relaxation in which one of its ends (14a, 14b) rests upon the upper zone of the surface of the backrest (S) against which the back of the user bears, starting from a normal erect position of use in which it is disposed above the backrest (S).

Description: "Headrest for motor vehicle seats" The present invention relates to headrests for motor vehicle seats, of the type comprising a support structure intended to be fitted to the top of the backrest of a seat and a soft cushion carried by the support structure. The headrest according to the invention is characterised in that the cushion is connected to the support structure so as to be capable of assuming a lowered position for relaxation in which one of its ends rests upon the upper zone of the surface of the backrest against which the back of the user bears, starting from a normal erect position of use in which it is disposed above the backrest. By virtue of this solution, the headrest according to the invention is more practical and comfortable in use, since, in addition to its normal protective function typical of headrests, it is also able to fulfil a new and original function of supporting the head of the user in a particularly comfortable condition of relaxation and rest. According to the invention the cushion has a substantially T-shape the head of which is defined by the end of the cushion itself which bears against the backrest in the lowered position of relaxation. This solution allows a further improvement in the degree of comfort of the head rest during its use with the cushion in its lowered position of relaxation. Further characteristics and advantages of the invention will become clear in the course of the detailed description which follows, with reference to the appended drawings, provided purely by way of non-limiting example, in which: Figure 1 is a schematic perspective view of a headrest for motor vehicle seats according to the invention, illustrated in a first condition of use; Figure 2 is a view similar to Figure 1 with the headrest in a second condition of use, Figure 3 is a perspective view of a detail of the headrest illustrated in Figures 1 and 2, Figure 4 is a schematic view in partial transverse section of a first variant of the headrest according to the invention, and Figure 5 is a view similar to Figure 4 illustrat ing a second variant of the headrest. Referring InItially to Figures l to 3, a headrest is generally indicated 10 and Is atta#hed to the top of the backrest S of a motor vehicle seat. The headrest 10 includes a support structure 12 and a cushion 14 articulated to the support structure 12. The support structure 12 has a generally inverted U-shape defined by a pair of rods 16 inserted in known manner in respective holes A formed in the upper end of the backrest S so as to be vertically adjustable therein, and a yoke 18 covered with a soft material, for example an expanded synthetic material. The cushion 14 includes a metal reinforcing frame 20 illustrated in detail in Figure 3 incorporated in a body of soft material having a generally inverted T-shape with rounded edges. In effect the lower part of the cushion 14 indicated 14a has a width greater than that of the supporting structure 12 while the upper part 14b is inserted within the yoke 18. From the sides of the upper part 14b there project two lateral pins 22 (Figure 3) which form part of the reinforcing frame 20 and rotatably engage respective plates 24 carried by the structure 12 beneath the yoke 18. Thus the cushion 14 is able to pivot relative to the support structure 12 between the retracted position of Figure 1 in which the lower part 14a rests against the rods 16 and a projecting position illustrated in Figure 2 in which this part 14a is spaced from the rods 16. At least one hairpin spring 26 wound on one of the pins 22 with one end anchored to the frame 20 and the other end anchored tc the corresponding plate 24 tends to retain the cushion 14 in the retracted position of Figure 1. In the position of Figure 1, the headrest fulfils its normal function of protecting the head and the neck of the user during movement of the vehicle. The position illustrated in Figure 2 corresponds, however, to the use of the headrest 10 for functions of rest and relaxation for the head of the user. In order to place the headrest 1O in this position, it suffices to press the support structure 12 downwardly, pushing the rods 1E into the respective holes A in the backrest S. Due to this lowering, the lower side of the cushion 14 is brought into contact with the top of the backrest S whereby the cushion itself rotates towards the position of Figure 2, being kept in contact with the upper zone of the surface of the backrest S against which the back of the user bears. In this position the cushion 14 thus provides a convenient and comfortable rest for the head of the user. In order to return the cushion 14 to the retracted position of Figure 1 it suffices to raise the support structure 12 up again until the part 14a disengages from the top of the backrest S, allowing the return spring or springs 26 to bring the part 14a back against the rods 16. Clearly the position and hence the angle of the cushion 12 in the projecting position of Figure 2 may be regulated in dependence on the requirements of the user sImply by eans of a vertical movement of the sup port structure 12. he variants of the headrest illustrated in r 1g;- ures ^ and S are generally similar to the embodiment cescr#bed abode, and only the differences Will be de scribe in detail, with the use of the same reference numerals for identical or similar parts. In the variant of Figure 4, the pins 22 for articulating the cushion 14 to the support structure 12 are replaced by a pair of lateral link rods one of which is indicated 28 each of which has one end ar articulated at 30 to a respective plate 24 and the other end articulated at 32 to the side of the upper part l4b of the cushion 14. The operation of the headrest according to this variant is entirely similar to that described previously and two different possible pos itions of the cushion 14 are indicated in continuous and in broken outline respectively in Figure 4. In the case of Figure 5, the cushion 14 is instead articulated to the support structure 12 in correspondence with its lower part 14a. In this case the movement from the normal position of use to the position of relaxation of the headrest is achieved simply by overturning of the cushion 14 from the raised position illustrated in continuous outline to the lowered position illustrated in broken outline in Figure 5. Clearly in the lowered position, it is the part 14b of the cushion 14 which rests on the upper surface of the backrest S against which the back of the user bears, in which respect it differs from the embodiment described previously. It is again possible to adjust the inclination of the cushion 14 in the lowered position of relaxation, in this case by simply varying the vertical position of the support structure 12 relative to the backrest S.

Claims: CLAIMS: 1. Headrest for motor vehicle seats, of the type comprising a support structure for attachment to the top of the backrest of a seat and a cushion carried by the support structure, characterised in that the cushion (14) is connected to the support structure (12) so as to be able to assume, in use, a lowered position for relaxation in which one of its neds (14a, 14b) rests upon the upper zone of the surface of the backrest (S) against which the back of the user bears, starting from a normal erect position of use in which it is disposed above the backrest (SJ. 2. Headrest according to Claim 1, characterised in that the cushion is articulated at its upper end 114to) to the support structure (12) so as to be able to pivot between a retracted position and a position in which it projects out from the support structure (n2? and in that means are provided for varying the vertical position of the cushion (14) relative to the backrest (S) of the seat in use. 3. Headrest according to Claim 2, characterised in that there are further provided resilient means (26) resisting the pivoting movement of the cushion (14) from the retracted position to the projecting position. 4. Headrest according to Claim 2 or Claim 3, characterised in that the articulation of the cushion (14) to the support structure (12) is effected by means of a pair of lateral pins (22) carried by a reinforcing core t20) incorporated in the cushion (14). 5. Headrest according to Claim 2 or Claim 3, char acterised in that the articulation of the cushion (14) to the support structure (12) is achieved by means of a pair of lateral link rods (28) each having one end articulated to the cushion (14) and the other end articulated to the support structure (12). 6. Headrest according to any one of Claims 2 to 5, characterised in that the means for varying the vertical position of the cushion (14) relative to the backrest (S) of the seat include a pair of rods (16) forming part of the support structure (12) and arranged in known manner for insertion in corresponding receiving members known per se in the top of the backrest (S) so as to be adjustable in height. Headrest according to Claim 1, characterised in that the cusnion (14) is articulated at its lower end :I#al to the support structure (13) so as to be atle to overturn between the said erect pcsition, the normal position of use, and the said lowered position of relaxation. 8. Headrest according to Claim 1, characterised in that the cushion has a substantially T-shape the head of which is defined by the end (14a) of the cushion itself (14) arranged to bear, in the position of relaxation, against the backrest (S) of the seat. 9. Headrest according to any one of the preceding claims, characterised in that the support structure (12) has a generally inverted U-shape with the upper part (18) covered with soft material.

Inventors: EDEL, BRUNO
Applicants: FIAT AUTO S.P.A.
Application year: 1983
Main classification: B60N1
IPC codes: B60N2