This application claims priority to Netherlands Application No. 1036865, filed Apr. 14, 2009.
The present disclosure relates to seats for use by children in vehicles, and in particular, to juvenile vehicle seats including a headrest mounted for movement on a seat back. More particularly, the present disclosure relates to a juvenile vehicle seat including an apparatus for raising and lowering the headrest on the seat back.
According to the present disclosure, a juvenile vehicle seat includes a base providing a seat bottom, a backrest extending upwardly from the base, and a movable headrest. The headrest is mounted for up-and-down movement on the backrest.
In illustrative embodiments, the juvenile vehicle seat cooperates with an underlying seat support to form a child restraint. The juvenile vehicle seat includes a headrest-height controller configured to control the height of the movable headrest relative to the backrest.
In illustrative embodiments, the headrest-height controller includes a headrest lock and a headrest-lock release. The headrest lock includes a movable headrest-retainer rod that is spring-biased into rod-receiving notches formed in a pair of spaced-apart plates included in a rod receiver coupled to a rearward facing surface of the backrest. The headrest-lock release includes a release lever mounted for movement on the headrest at the option of a caregiver to urge the headrest-retainer rod away from the backrest and out of the rod-receiving notches against a biasing force provided by a return spring to free the headrest for up-and-down movement by the caregiver relative to the backrest. In an illustrative embodiment, the release lever is mounted to pivot about a horizontal pivot axis to move the headrest-retainer rod to a disengaged position separated from the rod-receiving notches whenever the caregiver desires to raise or lower the headrest to assume a new position on the backrest.
In illustrative embodiments, the return spring is coupled at a first end thereof to the release lever and at an opposite second end thereof to the headrest. The return spring is a coiled compression spring in an illustrative embodiment. The return spring is arranged to lie wholly within an interior chamber formed in the headrest in one illustrative embodiment. The return spring is arranged to engage a handle included in the release lever in another illustrative embodiment.
Additional features of the present disclosure will become apparent to those skilled in the art upon consideration of illustrative embodiments exemplifying the best mode of carrying out the disclosure as presently perceived.
The detailed description particularly refers to the accompanying figures in which:
Several views of a child vehicle seat 1 in accordance with the present disclosure are shown in
The headrest-height controller 20 is provided with two guide elements 9 being swivelable about a swivel axis 10 with respect to the headrest 4 (see
The headrest-height controller 20 is also provided with an operating member 12 that is pivotable about a pivot axis 13 with respect to the headrest 4 as suggested in
In the position of the headrest 4 and the operating member 12 as shown in
The child seat 1 is provided with a five-point safety belt system. Since such a five-point safety belt system is well known by child vehicle seats, only a portion of the shoulder belts 18 is shown in the figures. The shoulder belts 18 are being guided by the guide elements 9 from the rear side of the backrest 3 through the belt-receiving openings 5 to the front side of the backrest 3.
In the position of the headrest 4 and the operating member 12 as shown in
If a user wants to lower the headrest 4, he places his hand on the handle 14 and pulls the handle 14 towards the headrest 4 against the force of the spring 17. Due to said movement, the operating member 12 is being pivoted about the pivot axis 13 in the direction as indicated by arrow P1, whereby the rod 16 will be moved out of engagement with the recesses 8 and the guide elements 9 will be swiveled in the direction as indicated by arrow P2 (
This position of the headrest 4 and the operating member 12 is shown in
While maintaining the operating member 12 in the position as shown in
In
As soon as the headrest 4 is located at the desired height with respect to the seat part 2, the user removes his hand from the handle 14. Under influence of the spring force of spring 17, the operating member 12 will be pivoted in a direction indicated by arrow P4 being opposite to the direction as indicated by arrow P1 and the rod 16 will be brought into engagement with four aligned recesses 8 of the four tracks 7.
In
In illustrative embodiments, each of first and second shoulder belts 18, 18 is guided by means of a guide element 9 that is supported for up-and-down movement relative to backrest 3 by rod 16 as rod 16 is moved relative to backrest 3 by operating member 12. By moving rod 16 from one recess 8 to another recess 8, headrest 4 will be moved to another vertical position. Since guide elements 9 are being supported by rod 16, guide elements 9 and therefore both shoulder belts 18, 18 will be adjusted simultaneously with headrest 4.
In illustrative embodiments, each guide element 9 is swivelable about a swivel axis 10 relative to headrest 4. Since each guide element 9 is swivelable with respect to headrest 4, each guide element 9 can be moved with respect to headrest 4 if rod 16 is pivoted about pivot axis 13.
In illustrative embodiments, backrest 3 is formed to include openings 5 and each guide element 9 is aligned with one of openings 5. In such a manner, shoulder belts 18, 18 can be guided easily through openings 5, 5 from the back side of backrest 3 to the front side of backrest 3.
In illustrative embodiments, along both sides of opening 5, a track 7 formed to include at least two recesses 8 is provided. By having more than one track 7 on backrest 3, rod 16 can be engaged in several recesses 8 at the same time to provide a reliable connection between rod 16 and backrest 3. Illustratively, tracks 7 extend parallel to one another.
In illustrative embodiments, at least one spring 17 is arranged to extend between headrest 4 and operating member 12 to urge rod 16 into engagement with one of the recesses 8. Due to spring 17, rod 16 will be kept in a recess 8 and only when a force is applied on rod 16 which will overcome spring 17 will rod 16 be moved out of recess 8.
A child restraint 1 in accordance with the present disclosure includes a seat shell 22, a headrest 4, and a headrest-height controller 20 as suggested in
Seat shell 22 includes a base 2 providing a seat bottom on which a child may sit and a backrest 3 extending upwardly from base 2 as suggested in
Headrest-height controller 20 includes a headrest lock 30 and a headrest-lock release 32 as suggested in
Headrest lock 30 includes a rod receiver 7 coupled to rear portion 28 of backrest 3 and arranged to extend away from front portion 24 of backrest 3 as suggested in
Headrest lock 30 also includes a headrest-retainer rod 16 as suggested in
Headrest-lock release 32 includes a release lever 15 and a return spring 17 as shown, for example, in
Return spring 17 is coupled at a first end thereof to headrest 4 and at an opposite second end thereof to release lever 15 as suggested in
Headrest 4 is hollow and formed to include an interior region 34 as shown, for example, in
Headrest 14 includes a front plate 36 and a rear plate 38 positioned to lie between front plate 36 and front portion 24 of backrest 3 as suggested in
Release lever 15 is mounted on front plate 36 for movement about horizontal pivot axis 13 in interior region 34 relative to front and rear plates 36, 38 as suggested in
Return spring 17 is arranged to lie in a space between horizontal pivot axis 13 and headrest-retainer rod 16 as suggested in
Release lever 15 includes a rod mover 151, pivot mount 152, and mover actuator 153 as suggested in
First end 171 of return spring 17 is coupled to rod mover 151 and the opposite second end 172 of return spring 17 is coupled to headrest 4 as suggested in
Pivot mount 152 includes a pivot post 40 as suggested in
Headrest 4 is formed to include a handle-receiving chamber 44 as suggested in
Headrest 4 includes a front plate 36 arranged to face toward a head of a child seated in seat shell 22 on the seat bottom and a rear plate 38 arranged to lie between front plate 36 and backrest 3 as suggested in
Handle 14 includes a finger-grip portion 14FG exposed in the rearward-facing aperture 38a to be gripped by a caregiver as suggested in
Rear plate 38 and front plate 36 cooperate to form an interior chamber 34 and a lower portion 153L of mover actuator 153 is arranged to extend between pivot mount 152 and handle 14 as suggested in
In illustrative embodiments, a first end 1171 of return spring 117 is coupled to headrest 4 and an opposite second end 1172 of return spring 117 is coupled to mover actuator 153 of release lever 15 as suggested in
A child-restraint harness 180 is also included in child restraint 1 and is coupled to seat shell 22 as suggested in
Backrest 3 is formed to include separate first and second belt-receiving channels 5, 5 as suggested in
Headrest-height controller 20 further includes a first guide element 9 and a first slidable block 21 as suggested in
Backrest 3 includes first and second flanges 6, 6 arranged to lie in spaced-apart relation to one another and to border first belt-receiving channel 5 formed in backrest 3 as suggested in
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