Headrest elongated hole shielding structure

Abstract

The present disclosure relates to a headrest elongated hole shielding structure, comprising headrest insertion rods, a headrest bottom cover, elastic pieces, shielding pieces, and shielding piece push rods, wherein the headrest insertion rods are fixedly mounted inside a vehicle; the headrest bottom cover is provided with via holes for the headrest insertion rods to pass through for clearance provision; the shielding pieces are movably mounted on the headrest bottom cover to cover the via holes; the shielding piece push rods are rotatably mounted on the headrest bottom cover; the elastic pieces are mounted on the headrest bottom cover in a hanging mode and are assembled with and connected to the shielding piece push rods; the shielding piece push rods are assembled with and connected to the shielding pieces. In the headrest elongated hole shielding structure of the present disclosure, the via holes are shielded by means of the shielding pieces, and in the whole process, the shielding pieces are in contact with the headrest insertion rods and slide, so that the shielding stroke can be up to 50 mm or more, and thus, the rotation angle of a headrest can be up to 90° or more.

Description

Headrest strip hole shielding structure The present application is based on the application with CN application number CN202421514604.3 and application date of June 28, 2024, and claims priority thereto, and the disclosure of the CN application is incorporated herein in its entirety. TECHNICAL FIELD

[0001] The present disclosure relates to a vehicle seat, and more particularly to a headrest strip hole shielding structure. BACKGROUND

[0002] Generally, a vehicle seat is provided with a headrest held on the upper end of a seat back. It is known that a long hole provided on the headrest to avoid a headrest insertion rod is closed by a plug, so that the structure inside the headrest cannot be observed through the long hole. However, during rotation of the headrest, since the plug cannot follow the rotation, a gap exists. SUMMARY

[0003] In order to solve the problem of poor plugging effect in the prior art, the present disclosure provides a headrest strip hole shielding structure.

[0004] The headrest strip hole shielding structure according to the present disclosure includes a headrest insertion rod, a headrest bottom cover, an elastic member, a shielding piece, and a shielding piece push rod, wherein the headrest insertion rod is fixedly installed inside a vehicle, the headrest bottom cover has a through hole for the headrest insertion rod to pass through, the shielding piece is movably installed on the headrest bottom cover to cover the through hole, the shielding piece push rod is rotatably installed on the headrest bottom cover, the elastic member is hingedly installed on the headrest bottom cover and connected with the shielding piece push rod, and the shielding piece push rod is connected with the shielding piece.

[0005] In some embodiments, the elastic member is a tension spring or a torsion spring or an elastomer element made of an elastomer.

[0006] In some embodiments, the headrest bottom cover has a sliding groove, and the shielding piece is slidably installed on the headrest bottom cover through the sliding groove.

[0007] In some embodiments, the shielding piece has a lateral protruding limiting portion, and the sliding groove has a stop portion, when the shielding piece is slidably assembled onto the headrest bottom cover, the limiting portion is deformed by being pressed by the stop portion and then rebounds to be assembled, and after assembly, the stop portion prevents the shielding piece from being pulled out of the sliding groove.

[0008] In some embodiments, the shielding piece has a first protrusion protruding in the thickness direction, the first protrusion cooperates with the outer side edge of the sliding groove, and / or has a second protrusion protruding in the lateral direction, the second protrusion cooperates with the lateral surface of the inner side of the sliding groove, to ensure the lateral stability of the shielding piece during sliding.

[0009] In some embodiments, the blocking piece has a protrusion configured to cooperate with the upper and / or lower surface of the inner side of the sliding groove in the sliding groove to ensure the longitudinal stability of the blocking piece during sliding.

[0010] In some embodiments, the blocking piece push rod has a mounting hole and the headrest bottom cover has a mounting column, the mounting hole being sleeved on the mounting column to achieve the rotatable mounting of the headrest push rod on the headrest bottom cover.

[0011] In some embodiments, the blocking piece push rod has a clamping hole, one end of the elastic member is hung on the hanging point of the headrest bottom cover, and the other end of the elastic member is hung on the clamping hole to exert a force on the blocking piece push rod.

[0012] In some embodiments, the blocking piece push rod has a cooperating hole, and the blocking piece has a hook inserted into the cooperating hole to slide and cooperate to exert a force on the blocking piece by the blocking piece push rod while preventing the blocking piece push rod from being separated from the blocking piece.

[0013] In some embodiments, the headrest bottom cover is mounted on the headrest front cover to provide a headrest structure, the headrest front cover is provided by a headrest front shell and a headrest middle shell, and the headrest front cover is rotatably mounted on the headrest insertion rod together with the headrest bottom cover.

[0014] In some embodiments, the connection points of the elastic member and the blocking piece push rod and the connection points of the blocking piece and the blocking piece push rod are respectively located on both sides of the rotation axis of the blocking piece push rod.

[0015] In some embodiments, a deformation avoiding hole is arranged adjacent to the limiting portion in the blocking piece, and the deformation avoiding hole is configured to facilitate the deformation of the limiting portion of the blocking piece on the stop portion of the sliding groove via the deformation avoiding hole during the assembly of the blocking piece into the sliding groove.

[0016] In the headrest slot hole blocking structure according to the present disclosure, the through hole is blocked by the blocking piece, the blocking piece slides along the headrest insertion rod throughout, the shielding effect is good, the blocking stroke can reach more than 50 mm, and thus the overturning angle of the headrest can reach more than 90°. BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 is a rotating state schematic view of a headrest slot hole blocking structure according to one preferred embodiment of the present disclosure.

[0018] FIG. 2 is a cross-sectional view of FIG. 1.

[0019] FIG. 3 is a partial exploded view of the headrest slot hole blocking structure of FIG. 1.

[0020] FIG. 4 shows the mounting of the blocking piece of FIG. 3 on the headrest bottom cover.

[0021] FIG. 5 is a perspective schematic view of the blocking piece of FIG. 3.

[0022] Figure 6 is a front view of the shield of Figure 5 mounted on the headrest bottom cover.

[0023] Figure 7 is a side view of the shield of Figure 5 mounted on the headrest bottom cover.

[0024] Figure 8 is a perspective view of the shield push rod of Figure 3.

[0025] Figure 9 is a front view of the headrest strip hole shielding structure of Figure 3 in an open state.

[0026] Figure 10 is a partial enlarged view of the shield and the shield push rod of Figure 9.

[0027] Figure 11 is a front view of the headrest strip hole shielding structure of Figure 3 in a folded state. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0029] As shown in Figures 1-2, the headrest strip hole shielding structure according to one preferred embodiment of the present disclosure comprises a headrest bottom cover 1, a headrest insertion rod 5, a headrest front cover face sleeve 6, a headrest front shell 7 and a headrest middle shell 8, wherein the headrest front shell 7 and the headrest middle shell 8 are collectively referred to as a headrest front cover, the headrest front cover face sleeve 6 is wrapped on the headrest front cover, the headrest bottom cover 1 is buckled or mounted on the headrest middle shell 8 of the headrest front cover to provide a headrest structure, the headrest insertion rod 5 is fixedly mounted in the vehicle interior, and the headrest front cover together with the headrest bottom cover 1 is rotatably mounted on the headrest insertion rod 5, wherein the headrest bottom cover 1 has a through hole 11 for the headrest insertion rod 5 to pass through. In the open state of the left drawing, the headrest insertion rod 5 is located at the lower part of the through hole 11, and in the folded state of the right drawing, the headrest insertion rod 5 is located at the upper part of the through hole 11.

[0030] As shown in Figure 3, the headrest strip hole shielding structure according to one preferred embodiment of the present disclosure comprises a tension spring 2, a shield 3 and a shield push rod 4, wherein the tension spring 2, the shield 3 and the shield push rod 4 are respectively mounted on the headrest bottom cover 1, the shield push rod 4 is rotatably mounted on the headrest bottom cover 1 around a rotation axis, the tension spring 2 is assembled with the shield push rod 4, and the shield push rod 4 is assembled with the shield 3, wherein the connection points of the tension spring 2 and the shield push rod 4 and the connection points of the shield 3 and the shield push rod 4 are respectively located on both sides of the rotation axis. It should be understood that the mounting of the tension spring 2, the shield 3 and the shield push rod 4 on the headrest bottom cover 1 is only by way of example and not limitation, and the tension spring 2, the shield 3 and the shield push rod 4 can also be respectively mounted on the headrest front cover (see Figure 1). It should be understood that the tension spring 2 is only by way of example and not limitation, and for example, a torsion spring or an elastic element made of an elastomer, such as an elastic band, can also be used in the present disclosure.

[0031] As shown in Fig. 4, the headrest bottom cover 1 has a sliding groove 12, through which the shielding piece 3 is slidably mounted on the headrest bottom cover 1 to cover the through hole 11 as required. In Fig. 4, the assembly process of the shielding piece 3 on the headrest bottom cover 1 is shown, from which it can be seen that the shielding piece 3 can be inserted from above into the sliding groove 12 of the headrest bottom cover 1, and the details in the assembly process are further described below with the aid of Fig. 5.

[0032] As shown in Fig. 5, the middle part of the shielding piece 3 has a laterally protruding limiting part 31, and as shown in Fig. 6, the sliding groove 12 has a stop part 13, when the shielding piece 3 is slidably assembled on the headrest bottom cover 1, the limiting part 31 is deformed by the stop part 13 and then rebounds to be assembled, and after assembly, the stop part 13 prevents the shielding piece 3 from being pulled out of the sliding groove 12. It can be understood that in actual use, during the turning process of the headrest structure from the open state to the folded state, it is not desirable for the limiting part 31 of the shielding piece 3 to contact the stop part 13 of the sliding groove 12, otherwise it can cause the shielding piece 3 to be forced to abut against the stop part 13 of the sliding groove 12 during the turning process due to the pushing of the headrest insertion rod 5, and thus cause the shielding piece 3 to break at the limiting part 31. Therefore, in use, even in the folded state, the limiting part 31 of the shielding piece 3 is at least spaced apart from the stop part 13 of the sliding groove 12 by a distance or just contacts to a degree that does not cause the limiting part 31 of the shielding piece 3 to break. Therefore, the cooperation of the limiting part 31 and the stop part 13 is mainly to prevent the shielding piece 3 from being pulled out of the sliding groove 12 during the sliding assembly process. As can be seen from Fig. 5, a deformation avoidance hole 36 is provided in the shielding piece 3 adjacent to the limiting part 31, which is configured to facilitate the deformation of the limiting part 31 of the shielding piece 3 on the stop part 13 of the sliding groove 12, especially on the assembly inclined surface 16 of the stop part 13, via the deformation avoidance hole 36 during the assembly of the shielding piece 3 into the sliding groove 12, and thus to be assembled.

[0033] As shown in Fig. 5, the shielding piece 3 has four first protrusions 32, and as shown in Fig. 7, the first protrusions 32 protrude in the thickness direction and cooperate with the outer side edge 121 or outer side end surface of the sliding groove 12, ensuring the lateral stability of the shielding piece 3 during sliding. Alternatively or additionally, the shielding piece 3 can also have second protrusions protruding in the lateral direction, which cooperate with the lateral surface of the inner side of the sliding groove 12, ensuring the lateral stability of the shielding piece 3 during sliding.

[0034] As shown in Fig. 5, the shielding piece 3 has protrusions 33 protruding in opposite directions at the four corners, and as shown in Fig. 7, the protrusions 33 protrude in the thickness direction and are configured such that the protrusions 33 cooperate with the upper and / or lower surfaces 122 of the inner side of the sliding groove 12 within the sliding groove 12, ensuring the longitudinal stability of the shielding piece 3 during sliding. In addition, the protrusions 33 can also reduce the contact area with the inner side surface of the sliding groove during sliding and thus reduce the friction during sliding.

[0035] As shown in FIG. 8, the baffle push rod 4 has a mounting hole 41, as shown in FIG. 9, the headrest bottom cover 1 has a mounting column 14, the mounting hole 41 is sleeved on the mounting column 14 to realize the rotatable mounting of the baffle push rod 4 on the headrest bottom cover 1.

[0036] As shown in FIG. 8, the baffle push rod 4 has a clamping hole 42, as shown in FIG. 9, one end of the tension spring 2 is hung on the hanging point 15 of the headrest bottom cover 1, and the other end of the tension spring 2 is hung on the clamping hole 42 to exert a force on the baffle push rod 4.

[0037] As shown in FIG. 8, the baffle push rod 4 has a matching hole 43, as shown in FIG. 5, the baffle 3 has a hook 34, as shown in FIG. 9 and FIG. 10, the hook 34 is inserted into the matching hole 43 and is slidingly matched to exert a force on the baffle 3 through the baffle push rod 4 while preventing the baffle push rod 4 from being separated from the baffle 3.

[0038] In the open state shown in FIG. 9, the tension spring 2 exerts a force or pre-tightening force on the baffle push rod 4 to make it have a tendency to rotate counterclockwise, so that the baffle 3 completely covers the through hole 11, at this time, the arc-shaped edge 35 (see FIG. 5) at the bottom of the baffle 3 abuts against the headrest insertion rod 5. In the process of folding the headrest, the headrest insertion rod 5 moves in the through hole 11 and abuts against the baffle 3 through the arc-shaped edge 35 to make it move in the sliding groove 12, and the baffle push rod 4 rotates around the mounting column 14 until the folded state shown in FIG. 11.

[0039] Unlike the conventional plug cover, the present disclosure shields the through hole 11 by the baffle 3, which slides throughout the headrest insertion rod 5 to avoid the problem of pinching the fingers in the slot hole during operation, thereby protecting the safety of the fingers of the passengers, and the shielding effect of the baffle 3 is good, whether from the side or the back, and the appearance is flat without pits, and it is safe and reliable during use. By means of the setting of the baffle push rod 4, the shielding stroke of the baffle 3 can reach more than 50 mm, so that the turning angle of the headrest can reach more than 90°, thereby covering the shielding problem of the headrest rod avoidance slot hole of most current folding headrests, and solving the long-stroke shielding problem that cannot be achieved by the torsional spring baffle structure. No matter what state the headrest is in, the present disclosure can effectively shield the through hole 11 by the baffle 3, and the automatic sliding reset of the baffle 3 can be realized by the tension spring 2, thereby solving the appearance problems of incomplete shielding, uneven appearance, etc. of the fixed plug cover on the market. In short, the headrest slot shielding structure of the present disclosure occupies a small space, is suitable for most high and bottom folding headrests, and is simple and convenient to assemble, has strong part universality, and has a high baffle platform.

[0040] The above merely describes preferred embodiments of the present disclosure, and is not intended to limit the scope of the present disclosure. The above-described embodiments of the present disclosure can be variously changed. That is, simple, equivalent changes and modifications made in accordance with the content of the claims and the specification of the present disclosure are all intended to fall within the scope of the present disclosure. The present disclosure does not describe all of the details of the conventional technology.

Claims

1. A headrest strip hole blocking structure, characterized in that, The headrest hole covering structure includes a headrest insert rod, a headrest bottom cover, an elastic element, a covering plate, and a blocking plate push rod. The headrest insert rod is fixedly installed inside the vehicle. The headrest bottom cover has a through hole for the headrest insert rod to pass through and avoid. The covering plate is movably installed on the headrest bottom cover to cover the through hole. The blocking plate push rod is rotatably installed on the headrest bottom cover. The elastic element is hooked onto the headrest bottom cover and assembled with the blocking plate push rod. The blocking plate push rod is assembled with the covering plate.

2. The headrest strip hole blocking structure according to claim 1, characterized in that, The elastic element is a tension spring or torsion spring or an elastic element made of an elastomer.

3. The headrest perforation blocking structure according to claim 1, characterized in that, The headrest base cover has a sliding groove, through which the cover plate can be slidably mounted on the headrest base cover.

4. The headrest strip hole blocking structure according to claim 3, characterized in that, The shield has a laterally extending limiting part, and the slide has a stop part. When the shield is slidably assembled onto the headrest bottom cover, the limiting part is squeezed and deformed by the stop part and then springs back into place. After being installed, the stop part prevents the shield from coming out of the slide.

5. The headrest strip hole blocking structure according to claim 3, characterized in that, The shield has a first protrusion extending in the thickness direction, which engages with the outer edge of the groove and / or a second protrusion extending in the lateral direction, which engages with the lateral surface of the inner side of the groove, to ensure the lateral stability of the shield during sliding.

6. The headrest strip hole blocking structure according to claim 3, characterized in that, The baffle has a boss, which is constructed to fit within the groove and onto the upper and / or lower surface of the inner side of the groove, thereby ensuring the longitudinal stability of the baffle during sliding.

7. The headrest perforation blocking structure according to claim 1, characterized in that, The baffle push rod has a mounting hole, and the headrest bottom cover has a mounting post. The mounting hole is fitted onto the mounting post to allow the headrest push rod to be rotatably mounted onto the headrest bottom cover.

8. The headrest perforation blocking structure according to claim 1, characterized in that, The baffle push rod has a snap-fit ​​hole. One end of the elastic element is attached to the hook point on the headrest bottom cover, and the other end of the elastic element is attached to the snap-fit ​​hole to apply force to the baffle push rod.

9. The headrest perforation blocking structure according to claim 1, characterized in that, The baffle push rod has a mating hole, and the baffle plate has a hook. The hook is inserted into the mating hole and slides to apply force to the baffle plate through the baffle push rod while preventing the baffle push rod from disengaging from the baffle plate.

10. The headrest perforation blocking structure according to claim 1, characterized in that, The headrest bottom cover is mounted on the headrest front cover to provide the headrest structure. The headrest front cover is provided by the headrest front shell and the headrest middle shell. The headrest front cover, together with the headrest bottom cover, is rotatably mounted on the headrest insert.

11. The headrest perforation blocking structure according to claim 1, characterized in that, The connection points between the elastic element and the baffle push rod, and the connection points between the baffle and the baffle push rod, are located on both sides of the rotation axis of the baffle push rod.

12. The headrest perforation blocking structure according to claim 4, characterized in that, A deformation clearance hole is provided in the shielding plate near the limiting part. The deformation clearance hole is designed to facilitate the deformation of the limiting part of the shielding plate on the stop part of the slide groove during the assembly process of the shielding plate being installed into the slide groove, thereby allowing it to be installed.

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