CN210139797U

CN210139797U - Headrest support, headrest for car seat and car seat

Info

Publication number: CN210139797U
Application number: CN201920955241.XU
Authority: CN
Inventors: 于涛
Original assignee: Langfang Dongping Automobile Parts Co ltd
Current assignee: Langfang Dongping Automobile Parts Co ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-03-13
Anticipated expiration: 2029-06-24

Abstract

The application discloses a headrest support, a headrest for an automobile seat and the automobile seat, wherein the headrest support can conveniently adjust the shape and comprises a main support and wing supports hinged to two sides of the main support; two inserting rods are rotatably fixed at the bottom of the main bracket; the bottom surface of the main bracket is provided with two arc-shaped grooves which are symmetrically designed and are concentric; the top ends of the two inserting rods are slidably clamped in the two arc-shaped grooves respectively. The wing support can rotate around the main support, namely the wing support of the headrest can be adjusted according to the sitting posture after the headrest using the headrest support leans on the head of a user, so that the headrest is more comfortable; the distance between the two inserted rods in the headrest support is adjustable, so that the headrest support can be suitable for automobile seats of different models and has universality; the whole headrest can also rotate at a certain angle at the circle center of the sliding groove, so that the use convenience of a user is further improved.

Description

Headrest support, headrest for car seat and car seat

Technical Field

The present disclosure relates generally to the technical field of automotive parts, and more particularly to the field of riding seat accessories, and more particularly to a headrest bracket, a headrest for an automobile seat, and an automobile seat.

Background

The top of a car seat is typically provided with a removable headrest for the driver or occupant to use in the pillow portion.

In the prior art, a vehicle type generally corresponds to a headrest of one type, and the headrest comprises a foaming structure, a headrest sleeve and an insertion rod (for inserting the top of a seat and fixedly connecting the seat) extending out of the bottom of the headrest sleeve; the structure of the headrest cover is fixed and is arranged to meet the requirement that the head of a driver or an occupant faces to the right front.

While in present cars more and more drivers will choose to take appropriate rests in the car, for example to sit aslant or otherwise, the slightly forward curved design of the headrest will cause inconvenience to the user, not facilitating the user to lean obliquely against the headrest.

Disclosure of Invention

Based on the defects of the headrest in the prior art, the headrest support, the headrest for the automobile seat and the automobile seat which can be conveniently adjusted in shape are provided.

In a first aspect, the present application provides a headrest bracket including a main bracket and wing brackets hinged to both sides of the main bracket; two inserting rods are rotatably fixed at the bottom of the main bracket; the bottom surface of the main bracket is provided with two arc-shaped grooves which are symmetrically designed and are concentric; the top ends of the two inserting rods are slidably clamped in the two arc-shaped grooves respectively.

According to the technical scheme provided by the embodiment of the application, the two inserted rods are also connected through an elastic structure;

the inserted link comprises a fixed link which can be slidably clamped in the arc-shaped groove and a rotating link which can be coaxially connected with the fixed link in a rotating way; the rotating rod is cylindrical, and the outer surface of the upper part of the rotating rod is provided with a plurality of annular grooves; the top of the rotating rod is sleeved with two symmetrically arranged adapter pieces; a plurality of circles of arc-shaped bulges which are meshed and connected with the annular groove are arranged on the inner side of the lower part of the adapter sheet; a connecting sheet extends downwards from the middle part of the bottom surface of the fixed rod; the upper part of the adapter plate is clamped at two sides of the connecting plate and is fixedly connected with the connecting plate through bolts;

the elastic structure comprises a spring, elastic annular clamping jaws connected to two ends of the spring and a telescopic decorative sleeve sleeved outside the spring;

the annular clamping jaw is provided with an opening; the inner surface of the annular clamping jaw is provided with an elliptical bulge; one the surface of the dead lever of inserted bar corresponds the arch is equipped with a plurality of rings of recesses, another the surface of the dwang of inserted bar corresponds the arch is equipped with a plurality of rings of recesses.

According to the technical scheme provided by the embodiment of the application, an auxiliary support frame is detachably fixed on one side of the main support close to the bottom; the auxiliary support frame comprises an L-shaped support rod and an arc-shaped metal sheet, wherein the top end of the L-shaped support rod is detachably connected with the main support, and the arc-shaped metal sheet is detachably connected to the other end of the L-shaped support rod; the middle part of the convex end of the metal sheet is welded with a clamping jaw; the end part of the horizontal part of the L-shaped supporting rod is welded with a clamping pipe which can be clamped into the clamping jaw.

In a second aspect, the present application provides a headrest for car seat, including foretell headrest support, be located the foaming structure of headrest support one side and will the foaming structure cup joints to be fixed headrest cover on the headrest support.

According to the technical scheme provided by the embodiment of the application, a bending edge is arranged at the position, corresponding to the hinge joint of the main bracket and the wing bracket, of the foaming structure; and a joint seam is arranged at the joint of the main bracket and the wing bracket corresponding to the headrest sleeve.

According to the technical scheme provided by the embodiment of the application, the edge of one side, away from the foaming structure, of the headrest support is provided with an inward-bent clamping hook; the edge of the headrest cover is provided with a clamping hole for being sleeved into the clamping hook.

According to the technical scheme provided by the embodiment of the application, a groove is formed in the edge of one side, far away from the foaming structure, of the headrest support; a clamping groove is formed in the side wall, close to the interior of the headrest support, of the groove;

a pressing strip is clamped in the groove and presses the edge of the headrest sleeve into the groove;

the lateral wall of the pressing strip is provided with a buckle clamped into the clamping groove.

In a third aspect, the present application provides a headrest for an automobile seat, including the headrest bracket, a foam structure located on one side of the headrest bracket, and a headrest cover for fixing the foam structure to the headrest bracket in a sleeved manner; the foaming structure is provided with a bending edge corresponding to the hinged part of the main bracket and the wing bracket; a seam is arranged at the joint of the main bracket and the wing bracket corresponding to the headrest sleeve;

the neck foaming part is sleeved on the metal sheet, the shape of the neck foaming part is consistent with that of the metal sheet, and the arc neck protecting sleeve wraps the metal sheet and the neck foaming part; the outer convex end of the neck protecting sleeve is provided with an opening for the horizontal end of the supporting rod to extend out.

In a fourth aspect, the application further provides a headrest for an automobile seat, which comprises the headrest support and a pillowcase body fixed on one side of the headrest support;

the pillowcase body comprises a closed integrated pillowcase and a foaming structure positioned in the integrated pillowcase;

one side of the integrated pillowcase close to the headrest support is provided with at least one plug-in sleeve with an opening at the bottom;

the bottoms of the main bracket and the wing bracket on one sides facing the pillowcase body are respectively provided with at least one insertion rod which extends outwards and upwards;

the inserting rods are respectively inserted into the corresponding inserting sleeves to fix the integrated pillow case on the headrest support.

In a fifth aspect, the present application provides a vehicle seat having the headrest described above mounted to a top end of a backrest of the vehicle seat.

According to the headrest support with the main support and the wing supports, the wing supports can rotate around the main support, namely the wing supports of the headrest can be adjusted according to the sitting posture after the headrest of the headrest support is used for leaning on the head of a user, so that the headrest is more comfortable, and fine adjustment can be performed according to the sitting posture; the distance between the two inserted rods in the headrest support is adjustable, so that the headrest support can be suitable for automobile seats of different models and has universality; because the sliding grooves of the inserted link are concentric arcs which are symmetrically designed, when the headrest is used, the whole headrest can rotate at a certain angle with the center of the sliding grooves, and the use convenience of a user is further improved.

According to the technical scheme provided by the embodiment of the application, the bottom of the headrest support is also provided with an auxiliary support frame; the auxiliary support frame comprises an L-shaped support rod and an arc-shaped metal sheet, wherein the top end of the L-shaped support rod is detachably connected with the main support, and the arc-shaped metal sheet is detachably connected to the other end of the L-shaped support rod; the middle part of the convex end of the metal sheet is welded with a clamping jaw; the end part of the horizontal part of the L-shaped support rod is welded with a clamping pipe which can be clamped into the clamping jaw; the support frame can be used for installing the neck protection foaming piece and the neck protection sleeve, and the comfort of use is further improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of a headrest bracket according to a first embodiment of the present application;

FIG. 2 is a schematic bottom view of a main stand according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of the structure of the insertion rod of the present application;

FIG. 4 is a schematic view of a headrest bracket according to a second embodiment of the present application;

FIG. 5 is a schematic structural view of a spring structure 800 of the present application;

fig. 6 is a schematic structural view of a headrest bracket of a third embodiment of the present application;

FIG. 7 is a schematic structural view of the auxiliary supporting frame;

FIG. 8 is a schematic cross-sectional view of a headrest according to a fourth embodiment of the present application;

FIG. 9 is a schematic structural view of a foam structure of the present application;

fig. 10 is a schematic view of the structure of a headrest case of the present application;

FIG. 11 is another schematic view of the headrest cover fixedly connected to the headrest bracket according to the present application;

FIG. 12 is a schematic view of a neck pillow of the present application;

fig. 13 is a schematic cross-sectional view of a headrest according to a fifth embodiment of the present application.

100. A main support; 200. a wing bracket; 300. inserting a rod; 400. a foamed structure; 500. a headrest cover; 600. layering; 700. a pillowcase body; 800. an elastic structure; 900. an auxiliary support frame; 1000. a headrest bracket;

110. an arc-shaped slot; 210. a hook; 220. a groove; 221. a card slot; 310. fixing the rod; 320. Rotating the rod; 330. a patch; 311. connecting sheets; 410. bending the edge; 510. seaming;

610. buckling; 710. an integrated pillowcase; 711. a plug bush; 810. a spring; 820. an annular jaw; 830. a decorative sleeve; 910. a support bar; 920. a metal sheet; 930. a claw; 940. Clamping the connecting pipe; 950. a neck foam; 960. a neck protecting sleeve.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The first embodiment is as follows:

referring to fig. 1 and 2, there is shown a schematic structural view of a first embodiment of a headrest bracket according to the present application, including a main bracket 100 and wing brackets 200 hinged to both sides of the main bracket 100; two insertion rods 300 are rotatably fixed at the bottom of the main bracket 100; the bottom surface of the main bracket 100 is provided with two arc-shaped grooves 110 which are symmetrically designed, and the two arc-shaped grooves 110 are concentric; the top ends of the two inserting rods 300 are slidably clamped in the two arc-shaped grooves 110 respectively; in this embodiment, the mutual rotation between the main bracket 100 and the wing bracket 200 needs to overcome a certain resistance, and the specific resistance to be overcome can be set according to actual requirements, and is preferably greater than or equal to 0.5 of the rotational friction coefficient between the main bracket 100 and the wing bracket 200. Before the headrest bracket is installed, the installation position can be adjusted through the angle between the rotary wing bracket 200 and the main bracket 100, so that convenience is brought to headrest installation; after the headrest support is installed in the headrest, the side edge of the headrest can be integrally broken, so that the wing support 200 drives the edge of the headrest to rotate, the inclination angle of the edge of the headrest is adjusted, and the comfort of the headrest is improved; when the headrest is pressed laterally, for example, when the rider sleeps with his head being tilted, the wing brackets 200 are slightly rotated by the pressure, thereby reducing the pressure on the head of the rider and improving the riding comfort; when the whole position of sitting of the person of taking inclines, can wholly rotate the headrest for the headrest support rotates a little around the centre of a circle of arc groove 110, with the demand of further adaptation person of taking, further improves the travelling comfort of taking.

As shown in fig. 3, in the present embodiment, the insertion rod 300 includes a fixed rod 310 slidably engaged in the arc-shaped groove 110 and a rotating rod 320 rotatably connected coaxially with the fixed rod 310; the rotating rod 320 is cylindrical, and the outer surface of the upper part of the rotating rod is provided with a plurality of annular grooves; the top of the rotating rod 320 is sleeved with two adapter pieces 330 which are symmetrically arranged; the inner side of the lower part of the adapter sheet 330 is provided with a plurality of circles of arc-shaped bulges which are engaged and connected with the annular groove; a connecting sheet 311 extends downwards from the middle of the bottom surface of the fixing rod 310; the upper part of the adapter sheet 330 is clamped at two sides of the connecting sheet 311 and is fixedly connected with the connecting sheet 311 through bolts; when the entire headrest bracket is rotated about the center of the arc-shaped slot 110, the fixing lever 310 is also rotated about the rotating lever 320.

Preferably, as shown in fig. 4, two insertion rods 300 are further connected with each other through an elastic structure 800; as shown in fig. 5, the elastic structure 800 includes a spring 810, elastic ring-shaped claws 820 connected to both ends of the spring 810, and a retractable decorative sleeve 830 sleeved outside the spring 810;

the annular jaw 820 is provided with an opening; the inner surface of the annular clamping jaw 820 is provided with an elliptical bulge; the outer surface of the fixing rod 310 of one of the insertion rods 300 corresponds to the protrusion and is provided with a plurality of grooves, and the outer surface of the rotating rod 320 of the other of the insertion rods 300 corresponds to the protrusion and is provided with a plurality of grooves. That is, one end of the elastic structure 800 is fixed on the fixing rod 310 of one insert rod 300, and the other end is fixed on the rotating rod 320 of the other insert rod, when the headrest drives the headrest bracket to integrally rotate, the spring 810 will be stretched or compressed (depending on the rotating direction), and when the pressure of the integral rotation disappears, the position between the insert rods 300 can be restored to the middle position of the seat by the restoring force of the spring 810.

Example two:

on the basis of the first embodiment, the headrest bracket provided by the embodiment; as shown in fig. 6, an auxiliary support frame 900 is detachably fixed to one side of the main support 100 near the bottom; the auxiliary supporting frame 900 comprises an L-shaped supporting rod 910 detachably connected to the main support 100 at the top end thereof, and an arc-shaped metal sheet 920 detachably connected to the other end of the L-shaped supporting rod 910; the metal sheet may be made of iron sheet or aluminum alloy, for example, and the arc-shaped metal sheet 920 has certain elasticity, so as to facilitate deformation and restoration; as shown in fig. 7, a claw 930 is welded to the middle of the convex end of the metal sheet 920; the end of the horizontal part of the L-shaped support bar 910 is welded with a clamping pipe 940 which can be clamped into the jaws 930. The top end of the vertical portion of the L-shaped support rod 910 may be fastened to the bottom surface of the main support 100 by means of a snap.

Example three:

as shown in fig. 8, the present embodiment provides a headrest for an automobile seat, including a headrest bracket 1000 according to the first embodiment, a foam structure 400 located on one side of the headrest bracket 1000, and a headrest cover 500 for fixing the foam structure 400 to the headrest bracket 1000 in a sleeved manner.

As shown in fig. 9, the foaming structure 400 is provided with a bending edge 410 corresponding to the hinge joint of the main bracket 100 and the wing bracket 200; as shown in fig. 10, the headrest case 500 is provided with a seam 510 corresponding to the hinge of the main support 100 and the wing supports 200.

As shown in fig. 8, the edge of the headrest bracket 1000 away from the foaming structure 400 is provided with an inward-bent hook 210; the edge of the headrest cover 500 is provided with a clamping hole for being sleeved into the clamping hook. The headrest cover 500, the foaming structure 400 and the headrest support 1000 are connected into a whole by combining the tension of the foaming structure 400 in a wrapping manner, and the edges of the headrest cover 500 are connected in a hanging and buckling manner by the hooks 210, so that the connection firmness is further improved.

In other embodiments, as shown in fig. 11, the headrest cover 500 may be fixedly connected to the headrest bracket 1000 in the following manner; a groove 220 is formed in the edge of one side of the headrest bracket 1000, which is far away from the foaming structure 400; a clamping groove 221 is formed in the side wall of the groove 220, which is close to the interior of the headrest bracket 1000;

a pressing strip 600 is clamped in the groove, and the edge of the headrest sleeve 500 is pressed into the groove by the pressing strip 600;

the side wall of the pressing bar 600 is provided with a buckle 610 clamped into the clamping groove; the compression beads 600 are snapped into the grooves 200 and snap-fit into the side walls of the grooves 200, thereby serving to fixedly couple the headrest cover 500 and the headrest bracket 1000 together.

Example four

The embodiment provides a headrest for an automobile seat, which further comprises a headrest bracket 1000 described in the second embodiment on the basis of the third embodiment;

accordingly, as shown in fig. 12, the headrest for a vehicle seat in this embodiment further includes an arc-shaped neck foaming member 950 covering the metal sheet 920 and conforming to the shape of the metal sheet 920, and an arc-shaped neck protecting cover 960 covering the metal sheet 920 and the neck foaming member 950; the outer convex end of the neck protecting sleeve 960 is provided with an opening for the horizontal end of the supporting rod 910 to extend out. In the present embodiment, the auxiliary supporting frame 900 and its related structure constitute a neck protection structure, so that no additional neck protection pillow is needed during the sitting process; in addition, since the auxiliary supporting frame 900 of the neck guard structure in this embodiment is a detachable structure, the user can detach and mount the neck guard structure as required; the use is convenient and free; meanwhile, because the metal sheet 920 has certain elasticity, the neck guard structure can deform according to the posture of the user during use, so as to improve the riding comfort.

EXAMPLE five

As shown in fig. 13, the present embodiment provides a headrest for an automobile seat, including a headrest bracket 1000 according to the first embodiment, and a headrest case body 700 fixed on one side of the headrest bracket 1000;

the pillow case body 700 comprises a closed integrated pillow case 710 and a foaming structure 400 positioned in the integrated pillow case 710;

at least 3 insertion sleeves 711 with openings at the bottom are arranged on one side, close to the headrest support 1000, of the integrated pillow case 710;

the bottom parts of the sides of the main bracket 100 and the wing brackets 200 facing the pillow case body 700 are respectively provided with at least one insertion rod 230 which extends outwards and upwards;

the insertion rods 230 are respectively inserted into the corresponding insertion sleeves 711, so as to fix the integrated pillow case 710 on the headrest bracket 1000.

In this embodiment, different from the third embodiment, the pillow case body 700 is an integrated structure, that is, the integrated pillow case 710 covers the headrest bracket 1000 and the foam structure in the inner cavity thereof, so that the overall feeling of the headrest is stronger and more beautiful.

Example six: the embodiment provides an automobile seat, and the headrest of the third embodiment, the fourth embodiment or the fifth embodiment is installed at the top end of a backrest of the automobile seat.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A headrest bracket, characterized by comprising a main bracket (100) and wing brackets (200) hinged at both sides of the main bracket (100); two inserting rods (300) are rotatably fixed at the bottom of the main bracket (100); the bottom surface of the main bracket (100) is provided with two arc-shaped grooves (110) which are symmetrically designed, and the two arc-shaped grooves (110) are concentric; the top ends of the two inserting rods (300) are respectively clamped in the two arc-shaped grooves (110) in a sliding manner.

2. The headrest bracket as claimed in claim 1, wherein two of said insertion rods (300) are connected by an elastic structure (800);

the inserted link (300) comprises a fixed link (310) which can be slidably clamped in the arc-shaped groove (110) and a rotating rod (320) which can be rotatably and coaxially connected with the fixed link (310); the rotating rod (320) is cylindrical, and the outer surface of the upper part of the rotating rod is provided with a plurality of annular grooves; the top of the rotating rod (320) is sleeved with two adapter pieces (330) which are symmetrically arranged; the inner side of the lower part of the adapter sheet (330) is provided with a plurality of circles of arc-shaped bulges which are meshed and connected with the annular groove; a connecting sheet (311) extends downwards from the middle part of the bottom surface of the fixing rod (310); the upper part of the adapter sheet (330) is clamped at two sides of the connecting sheet (311) and is fixedly connected with the connecting sheet (311) through bolts;

the elastic structure (800) comprises a spring (810), elastic annular claws (820) connected to two ends of the spring (810) and a telescopic decorative sleeve (830) sleeved outside the spring (810);

the annular clamping jaw (820) is provided with an opening; the inner surface of the annular clamping jaw (820) is provided with an elliptical bulge; the outer surface of the fixing rod (310) of the inserted bar (300) corresponds to the bulge, a plurality of grooves are formed in the bulge, and the outer surface of the rotating rod (320) of the inserted bar (300) corresponds to the bulge, and a plurality of grooves are formed in the circle.

3. The headrest bracket as claimed in claim 1, wherein an auxiliary support bracket (900) is detachably fixed to one side of said main bracket (100) near a bottom thereof; the auxiliary supporting frame (900) comprises an L-shaped supporting rod (910) the top end of which is detachably connected with the main support (100), and an arc-shaped metal sheet (920) which is detachably connected with the other end of the L-shaped supporting rod (910); the middle part of the convex end of the metal sheet (920) is welded with a claw (930); the end part of the horizontal part of the L-shaped supporting rod (910) is welded with a clamping pipe (940) which can be clamped into the clamping jaw (930).

4. A headrest for a vehicle seat, comprising a headrest support (1000) according to any one of claims 1 to 2, a foam structure (400) located on one side of the headrest support (1000), and a headrest cover (500) for fixing the foam structure (400) to the headrest support (1000) by fitting.

5. The headrest for vehicle seats according to claim 4, characterized in that the foam structure (400) is provided with a folded edge (410) corresponding to the hinge joint of the main bracket (100) and the wing bracket (200); the headrest cover (500) is provided with a seam (510) corresponding to the hinged part of the main bracket (100) and the wing bracket (200).

6. The headrest for automobile seats according to claim 4 or 5, characterized in that the edge of the headrest bracket (1000) far from the side of the foaming structure (400) is provided with an inward bent hook (210); the edge of the headrest cover (500) is provided with a clamping hole for being sleeved into the clamping hook.

7. The headrest for the automobile seat according to claim 4 or 5, characterized in that a groove (220) is formed in the edge of one side of the headrest bracket (1000) far away from the foaming structure (400); a clamping groove (221) is formed in the side wall, close to the interior of the headrest support (1000), of the groove (220);

a pressing strip (600) is clamped in the groove, and the edge of the headrest cover (500) is pressed into the groove by the pressing strip (600);

the lateral wall of layering (600) is equipped with the card and goes into buckle (610) of draw-in groove.

8. A headrest for a vehicle seat, comprising the headrest bracket (1000) of claim 3, a foam structure (400) located on one side of the headrest bracket (1000), and a headrest cover (500) for fixing the foam structure (400) to the headrest bracket (1000); the foaming structure (400) is provided with a bent edge (410) corresponding to the hinged part of the main bracket (100) and the wing bracket (200); seams (510) are arranged at the joint of the headrest sleeve (500) corresponding to the main bracket (100) and the wing bracket (200);

the neck foaming piece (950) is sleeved on the metal sheet (920) and is in an arc shape consistent with the shape of the metal sheet (920), and the arc neck protecting sleeve (960) wraps the metal sheet (920) and the neck foaming piece (950); the outer convex end of the neck protecting sleeve (960) is provided with an opening for the horizontal end of the supporting rod (910) to extend out.

9. A headrest for an automobile seat, comprising a headrest bracket (1000) according to any one of claims 1 to 2, and a pillowcase body (700) fixed to one side of the headrest bracket (1000);

the pillow case body (700) comprises a closed integrated pillow case (710) and a foaming structure (400) positioned in the integrated pillow case (710);

one side of the integrated pillow case (710) close to the headrest support (1000) is provided with at least 3 plug-in sleeves (711) with openings at the bottoms;

the bottoms of the main bracket (100) and the wing bracket (200) facing to one side of the pillowcase body (700) are respectively provided with at least one insertion rod (230) which extends outwards and upwards;

the inserting rods (230) are respectively inserted into the corresponding inserting sleeves (711), and the integrated pillow cover (710) is fixed on the headrest support (1000).

10. A car seat, characterized in that the headrest of any one of claims 4 to 9 is mounted on the top end of the backrest of the car seat.