JP3773582B2 - Headrest - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a headrest provided in a seat of an automobile or the like.
[0002]
[Prior art]
The headrest is originally intended to protect the driver's or passenger's head in the event of a collision, but it also has additional functions such as supporting the head and making it easier to relax when taking a nap or relaxing. ing.
[0003]
[Problems to be solved by the invention]
However, in the conventional headrest, no particular consideration is given to soundproofing, and there are cases where the user suffers from noise when taking a nap or relaxing in an automobile. Further, since the passenger's head is supported only from behind, the passengers in the passenger seat and the rear seat have a drawback that their heads are swung outward when they are traveling in a curve.
[0004]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a headrest having improved additional functions such as stable support of an occupant's head when driving on a curve and enhancing the soundproofing effect of relaxation time. .
[0005]
[Means for Solving the Problems]
In order to achieve the object, the gist of the invention described in claim 1 is that a central pad portion (H1) that supports the head and a pair of left and right pivots provided to be pivotable to the left and right of the central pad portion pad portion and (H2, H2), a headrest Ru comprising a central pad portion central core is embedded in the pad material and (H1), the whole in the approximately circular cross section is U-shaped, the upper falls the A stay ( 11 ) in which the central core is embedded in the pad material, a connecting member ( 12 ) rotatably attached to the base shaft portion of the stay, and a plurality of engagements formed at the upper and lower edges of the connecting member the recess (17), the connecting member insertion hole is provided to be inserted, and a U-shaped pair of rotating pad portions rotating core is embedded in the pad material with the (H2, H2), U engaging portion which is secured to the upper and lower inner edge shaped for該回Duasyn body (21), comprising a engaging convex portion is the engagement The rotating core by engaging in the recess so as to be fixed to the connecting member, the headrest which the rotating core is characterized by being pivotally connected to said central core member is there.
The invention of the headrest according to claim 2 is the invention according to claim 1, wherein the stay is made of a metal pipe, the semicircular ring portion ( 13a ) having a semicircular cross section formed on the base shaft portion of the stay, and the connecting member A cylindrical portion ( 14 ) formed by folding the metal plate along the base shaft portion so that the metal plate is attached to the base shaft portion, and a rotation in which a ring is recessed inwardly in a part of the cylindrical portion A range restricting portion (14a), and the rotation range restricting portion abuts on the semi-annular portion so that the connecting member is in a range of a predetermined turning angle with respect to the base shaft portion. It is characterized by only being rotatable.
[0006]
According to the invention of the headrest of the first aspect, since the rotation pad portions are provided on the left and right of the central pad portion, the left and right rotation pad portions are rotated forward, and the plan view is substantially U-shaped. The shape of the entire headrest can be changed so as to have a shape. As a result, when the driver or the passenger takes a nap or relaxes, the left and right rotating pad portions move to a position that covers the ears from both sides, thereby achieving sound insulation. In addition, the passengers in the passenger seat and the rear seat are stably supported from the left and right by the left and right pivot pads, so that the head can be prevented from being swung from side to side when driving on a curve. Comfort is improved.
Furthermore, since the connecting member is rotatably attached to the base shaft portion of the stay , and the rotating core body is attached to the connecting member, the rotating pad portion including the rotating core body and the central pad portion are separately formed. Can be assembled. Assembling of the center pad portion and the rotating pad portion is facilitated.
As in the second aspect of the invention, a semicircular ring portion ( 13a ) having a semicircular cross section formed in the base shaft portion of the stay and a metal plate on the base shaft portion so that the connecting member is attached to the base shaft portion. A rotation range when further including a cylindrical portion ( 14 ) formed so as to be folded along, and a rotation range restricting portion (14 a) in which a ring is recessed inwardly in a part of the cylindrical portion. When the restricting portion comes into contact with the semicircular ring portion, the connecting member can rotate only within a predetermined rotation angle (for example, 60 ° to 90 °) with respect to the base shaft portion.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail.
(1) Embodiment 1
1 to 6 show the first embodiment.
FIG. 1 shows the appearance of the headrest of the present invention.
In FIG. 1A, the headrest H is provided in the upper part of the seat back S and protects the driver's or passenger's head. The headrest H includes a central central pad portion H1 that supports the head and a pair of left and right rotating pad portions H2 and H2 provided on the left and right sides of the central pad portion H1. As shown in FIGS. 1A and 1B, the rotating pad portion H2 is provided so as to be rotatable with respect to the central pad portion H1, and the headrest H is as shown in FIG. The rotation pad part H2 is located on the left and right of the center pad part H1, and forms a continuous curved surface. As shown in FIG. 1B, the rotation pad part H2 is obliquely forward of the center pad part H1. And changes to a substantially U-shaped second state having a loose bend. When changing to the second state, in the present embodiment, the two rotating pad portions H1 and H2 rotate and move to an obliquely forward position while maintaining substantially the same plane state from the left and right positions of the central pad portion H1. is doing.
[0008]
FIG. 2 is a perspective view showing a state before the headrest is assembled. The headrest H includes the bag-shaped skin L of FIG. 1 that covers the pad materials P1 and P2, and the bag-shaped skin L is formed in a bellows shape between the central pad portion H1 and the rotating pad portion H2. A bellows portion L1 is provided. Each pad material P1, P2 in FIG. 2 is formed of a foam, but it is more preferable to use a hard urethane resin or the like having a high soundproofing effect for the rotating pad portion H2 from the viewpoint of improving the soundproofing effect. A central core body 10 in FIG. 3 and a rotating core body 20 in FIG. 5 are embedded in the pad materials P1 and P2, respectively.
[0009]
3 shows the first insert 1 of the headrest H, and FIG. 4 shows a cross section taken along line 4-4 of FIG.
In the figure, the first insert 1 has a symmetrical structure with the center line C as the center, and the left half is not shown in this figure due to the space on the paper. The first insert 1, the whole shown in FIG. 2 and a connecting member 12 and the left and right away tape 11, such a U-shaped pipe. The upper portion of the stay 11 constitutes the central core body 10 embedded in the pad material P1 as shown in FIG. The stay 11 is inserted into a support hole (not shown) of the seat back S (FIG. 1) and fixed to the seat back S.
[0010]
The stay 11 in FIG. 3 is made of, for example, a metal pipe having a substantially circular cross section, and the connecting member 12 is attached to the base shaft portion 13 thereof. For example, the connecting member 12 forms a cylindrical portion 14 by folding a metal plate along the base shaft portion 13, and is attached around the base shaft portion 13 so as to be rotatable with moderation. Various structures such as a structure in which a small convex portion projecting inward is provided on the cylindrical portion 14 to generate a frictional force can be adopted as the structure having moderation. The flat plate portions 15 and 16 of the connecting member 12 are welded to each other.
[0011]
As shown in FIG. 4, the base shaft portion 13 of the stay 11 is formed with a semicircular semicircular ring portion 13 a having a semicircular cross section. A turning range restricting portion 14a recessed inward is formed. When the rotation range restricting portion 14a abuts on the semicircular ring portion 13a, the connecting member 12 rotates with respect to the base shaft portion 13 only within a predetermined rotation angle (for example, 60 ° to 90 °) A. It is possible.
Note that “can be rotated with moderation” does not require moderation over the entire range of the rotation angle A, and at least both ends of the rotation angle A have moderation, and the rotation pad portion H2 (FIG. 1). Should be in a stable state. However, it is more preferable that the rotation pad portion H2 can be positioned anywhere with a slight resistance over the entire range of the rotation angle A. It can be used for a wide range of head sizes of passengers (adults and children), or in some cases, with one rotating pad part H2 fixed at a predetermined angle for shading to block sunlight from the side. This is because there may be cases that you want. A plurality of engaging recesses 17 are formed on the upper and lower edges of the flat plate portion 15 of the connecting member 12 in FIG.
[0012]
FIG. 5 is a longitudinal sectional view of the rotating pad portion H2.
The rotating pad portion H2 includes a second insert 2 made of the U-shaped rotating core body 20 and a pad material P2 in which the second insert 2 is embedded. The rotating core body 20 is made of, for example, a metal pipe, and an engagement convex portion 21 made of a leaf spring is fixed to upper and lower inner edges. The engaging convex portion 21 engages with the engaging concave portion 17 of FIG. 3, and thereby the rotating core body 20 can be fixed to the connecting member 12 as shown in FIG. 6. Therefore, the rotating core body 20 is attached to the central core body 10 so as to be rotatable with a moderation along a horizontal plane.
Note that an insertion hole P2a into which the connecting member 12 (FIG. 6) is inserted is provided in the pad material P2 of the rotating pad portion H2 in FIG. Further, as shown in FIG. 4, the pad material P1 of the central pad portion H1 is provided with a notch P1a that allows the connecting member 12 to rotate. On the other hand, as shown in FIG. A gap Sp that allows the rotation of the rotation pad portion H2 is provided between P2. Of course, the gap Sp can be eliminated by adopting a different hardness pad with different hardness in the vicinity of the contact between the two pad materials for the pad materials P1 and P2, thereby softening the hardness of the portion and facilitating the deformation. You can also.
[0013]
The headrest configured in this manner is attached to the center pad portion H1 of FIG. 1 so that the rotation pad portion H2 is pivotable. Therefore, when the driver takes a nap, the headrest is pivoted. By rotating the pad portion H2 forward as shown in FIG. 1B to the second state, the soundproofing effect is enhanced and the comfort is pursued. Further, the heads of passengers in the passenger seat and the rear seat can be supported from the left and right sides to prevent the heads from swinging left and right during driving.
[0014]
On the other hand, if the rotating pad portion H2 is returned to the original first state as shown in FIG. 1A, the rotating pad portion H2 narrows the driver's field of view, or passengers in the rear seats have a conversation with each other. It will not get in the way.
[0015]
Further, in the present embodiment, since the rotating core body 20 is attached to the central core body 10 via the connecting member 12 of FIG. 6, the central pad portion H1 and the rotating pad portion H2 are separately formed. Can be assembled. Therefore, the center pad portion H1 and the rotating pad portion H2 can be easily assembled.
[0016]
Moreover, since the bag-shaped skin L of FIG. 1 is provided with the bellows portion L1, the gap between the two pad portions H1 and H2 cannot be seen from the outside, and the appearance is improved.
[0017]
(2) Embodiment 2
FIG. 7 is a longitudinal sectional view of the second embodiment. The connecting member 12 and the rotating core body 20 can be a synthetic resin molded product. In such a case, the engaging portion 21A and the engaged portion 17A can be engaged with each other by the elasticity of the synthetic resin. Here, the pad materials P1 and P2 of the pad portions H1 and H2 are covered with the bag-shaped skin L, and no bellows portion is provided in the gap Sp. The skin of the bellows portion L1 may be a separate structure and may be provided by being inserted into the connecting member 12.
The headrest configured as described above also obtains the same operations and effects as those of the first embodiment.
[0018]
The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the present invention depending on the purpose and application. For example, in each of the above embodiments, the center pad portion H1 is fixed to the seat back S in FIG. 1, but a structure in which the center pad portion H1 rotates about the horizontal axis with respect to the seat back S is added. May be. Moreover, you may attach the rotation core 20 to the center core 10 so that rotation is possible directly, without providing the connection member 12 of FIG. The stay 11 may be formed of a solid rod, and may be formed of a synthetic resin instead of a metal. Further, the rotation angle A of the rotation pad portion H2 may be 60 ° or less or 90 ° or more.
[0019]
【The invention's effect】
As described above, the headrest of the present invention not only has a function as a pillow part seen in a conventional product, but also a soundproofing effect by rotating forward the rotating pad parts provided on the left and right of the central pad part, It has excellent effects such as having a new advantage of preventing the head from being swung from side to side during curve driving.
[Brief description of the drawings]
FIG. 1 is a perspective view of a headrest according to a first embodiment.
FIG. 2 is a perspective view showing the disassembled state.
FIG. 3 is a perspective view showing a first insert.
4 is a cross-sectional view taken along line 4-4 of FIG.
FIG. 5 is a longitudinal sectional view showing a rotating pad portion.
FIG. 6 is a longitudinal sectional view of the headrest.
FIG. 7 is a longitudinal sectional view showing a part of a headrest according to a second embodiment.
[Explanation of symbols]
10 Central core
11 stays
12 connecting member 13 base shaft
17 Engaging recess 20 Rotating core
21 engaging convex part H headrest H1 center pad part H2 rotating pad part L epidermis
P1 pad material
P2 pad material
P2a insertion hole

Claims (2)

Central pad portion for supporting the head and (H1), rotatably left and right pair of rotating pad portion provided on the left and right of the center pad portion and (H2, H2), a headrest Ru provided with,
A central pad portion central core is embedded in the pad material (H1), in cross section shaped entirely U-shaped with a circular, a stay (11) said central core member corresponding to the upper is embedded in the pad material, the A connecting member ( 12 ) rotatably attached to the base shaft portion of the stay, a plurality of engaging recesses ( 17 ) formed at upper and lower edges of the connecting member, and an insertion hole into which the connecting member is inserted are provided. And a pair of rotating pad portions ( H2 , H2 ) in which a U-shaped rotating core body is embedded in a pad material, and an engagement fixed to upper and lower inner edges of the U-shaped rotating core body A convex portion ( 21 ) ,
The rotating core so as to be fixed to the connecting member by engagement convex portion is engaged with the engaging recesses, the rotation core is pivotably connected to said central core member Headrest characterized by that. The stay is made of a metal pipe, and a semicircular ring portion having a semicircular cross section formed on a base shaft portion of the stay ( 13a ) And a cylindrical portion formed by folding the metal plate along the base shaft portion so that the connecting member is attached to the base shaft portion. ( 14 ) And a rotation range restricting portion (14a) in which a ring is recessed inwardly in a part of the cylindrical portion, and the rotation range restricting portion abuts on the semi-annular portion. The headrest according to claim 1, wherein the connecting member is rotatable only within a predetermined rotation angle range with respect to the base shaft portion.

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