JPH11291760A - Sun visor for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sun visor for an automobile capable of enhancing attractiveness of outward appearance in a peripheral edge part, eliminating deficiency such as separation of a skin material and ensuring a good touch feeling, in the sun visor for an automobile with a forming molded body lightening weight and excellent in shock resistance serving as a sun visor core to be formed by coating with a sun visor skin. SOLUTION: In a sun visor coating an outer surface of a sun visor core 30 consisting of foaming molded body of beads, urethane, etc., with a sun visor skin 40 to be obtained by fusing work thereof along the product periphery, a cushion sheet 50 having elastic action and restoration action is interposition mounted along at least partly or the total periphery in a peripheral edge part of the sun visor, between the sun visor core 30 and the sun visor skin 40, so as to apply tension in an adhesion direction of the sun visor core 30 to a fusion part 41 of the sun visor skin 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sun visor for automobiles using a lightweight foam molded article having excellent impact resistance as a sun visor core, and more particularly to enhancing the appearance of a peripheral portion of the sun visor and feeling to the touch. In addition to improving the click action type sun visor,
The present invention relates to a sun visor for an automobile, which reduces a noise applied to a ceiling surface during storage.

[0002]

2. Description of the Related Art Usually, a sun visor for a vehicle is installed diagonally above a front passenger on the front seat side in a vehicle cabin so as to secure a driving view from sunlight or lights of an oncoming vehicle at night. As described above, in the sun visor 1 for a vehicle, the sun visor body 2 having a desired light shielding area is rotatably attached to the ceiling surface 4 via the rotation shaft 3.
The sun visor body 2 is configured by enclosing the outer surface of the sun visor core 5 with a sun visor skin 6.
As the sun visor core 5, a material having a lightweight and excellent impact strength tends to be preferred in consideration of operability and impact resistance.
Foamed molded articles such as bead foamed molded articles and PE bead foamed molded articles, and foamed molded articles such as urethane foam molded articles are frequently used, and the sun visor skin 6 is a sheet in which a PVC sheet is attached to a PVC sheet or a nonwoven fabric back surface. Is used.

Further, as a method for enclosing the sun visor skin 6 on the outer surface of the sun visor core 5, as shown in FIG. 6, a sheet of the sun visor skin 6 is placed on the upper and lower surfaces of the sun visor core 5 in welders 7 and 8, respectively. A high-frequency current is applied to the upper and lower electrodes 7a and 8a provided along the peripheral shape of the sun visor main body 2, and the sun visor outer skin 6 is welded and cut off to seal the sun visor main body 2. Has been completed.

[0004] When welding a PVC sheet material as the sun visor skin 6, a high frequency welder welding method is used. For a material having poor high frequency welder characteristics such as PET (polyester) cloth, ultrasonic welding is used. The outer surface of the sun visor core 5 is covered with the sun visor skin 6 according to the material of the sun visor skin 6, such as by using a processing method, and welding is performed along the peripheral edge 5a of the sun visor core 5.

[0005]

However, the sun visor core 5 using the foamed molded product is welded to the welder dies 7 and 8.
When the sun visor core 5 is welded along the peripheral edge portion 5a of the sun visor core 5 and the sun visor core 5 has no cushioning property and restoring property, the peripheral edge portion 5a of the sun visor core 5 and the welder welding portion w It is very difficult to adjust the clearance (indicated by the symbol d in FIG. 6). For example, if the clearance is too small, the desired welding strength cannot be obtained, and the welded portion w of the sun visor skin 6 is peeled off. If the clearance is too large, there is a problem that the sun visor skin 6 becomes loose and wrinkled, and in any case, there is a problem of poor appearance and poor molding.

A recent tendency is that a click action force is applied between the rotating shaft 3 and the sun visor body 2 so that the pivoting shaft 3 and the sun visor main body 2 are moved to the optimum position when retracted to the ceiling surface 4 or when deployed to the front window side. A structure in which a spring force is applied so as to be able to be automatically positioned is often used. However, in the case where a foam molded body is used as the sun visor core 5, when the sun visor body 2 is stored in the ceiling surface 4, Impact sound (hitting sound), giving the occupant a sense of discomfort.

The present invention has been made in view of such circumstances, and has an outer surface of a sun visor core using a foamed molded article covered with a sun visor skin, and the sun visor skin is welded along a peripheral portion of the sun visor core. In a fixed automotive sun visor, there are no wrinkles or the like on the peripheral edge, the peripheral edge is excellent in appearance, the processing accuracy of the welding die can be relatively rough, and in the click action type sun visor, It is an object of the present invention to provide a sun visor for an automobile in which the sound of collision with a ceiling surface is reduced.

[0008]

According to a first aspect of the present invention, there is provided a sun visor for an automobile, wherein an outer surface of a sun visor core made of a foamed molded body is covered with a sun visor skin, and a peripheral portion of the sun visor core is provided. A sun visor body formed by welding a sun visor skin along a rotating shaft, a part of a peripheral portion of the sun visor core,
Alternatively, it is characterized in that a cushion sheet having elasticity and restoring property is interposed between the sun visor core and the sun visor skin along the entire circumference.

Further, the sun visor for an automobile according to the present invention is characterized in that the mounting position of the cushion sheet is a portion facing the ceiling surface on the open edge side of the sun visor body.

Here, the sun visor is configured such that a sun visor main body having a desired light shielding area is rotatably supported by a rotation shaft, and the rotation shaft is attached to a ceiling surface via a bracket, and the sun visor main body is It is vertically movable between a storage position on a ceiling surface (where a storage recess is formed) and a deployed position in which the storage position is turned downward and becomes substantially parallel to the front window, and By rotating the shaft around the bracket, the shaft can also be rotated toward the side window.

As the sun visor core, a bead foam molded article such as a PP bead foam molded article or a PE bead foam molded article or a urethane foam molded article can be used, and the moldability, impact resistance, cost and the like are taken into consideration. For example, a 20-fold expanded PP bead foam molded article is suitable.

As the sun visor skin, a PVC sheet, a composite sheet in which a PVC sheet is laminated on the back surface of a non-woven fabric, a cloth, or the like can be used. The welding is performed on the cloth or the like by ultrasonic welding.

The cushion sheet to be attached to the periphery of the sun visor core is not particularly limited as long as it has elasticity and resilience, but a soft foam sheet such as a polyurethane pad is suitable. In addition, the cushion sheet may be attached to the entire periphery of the sun visor core, or may be attached only to the open edge side of the sun visor, which is a place where the sun visor can be easily touched, when operating the sun visor. . Further, since the open edge side of the sun visor is a portion corresponding to the ceiling surface when the sun visor is stored, a click action type sun visor can prevent hitting sound.

As is apparent from the above configuration, the first aspect
According to the described invention, a part of the peripheral portion of the sun visor core,
Alternatively, since a cushion sheet having cushioning and restoring properties is interposed between the sun visor core and the sun visor skin along the entire circumference, when the sun visor skin is wrapped around the outer surface of the sun visor core and the sun visor skin is welded. Since the cushion sheet is compressed in a flat shape, not only does not hinder the welding process, but also after the welding process, the cushion sheet is restored, so that the cushion sheet is formed between the peripheral portion of the sun visor core and the sun visor skin welding portion. This can be eliminated by the restoring action of the cushion sheet.

Since the gap can be eliminated by restoring the cushion sheet, the clearance between the peripheral edge of the sun visor core and the welding point can be set relatively rough.

Further, according to the second aspect of the present invention, the cushion sheet is interposed between the sun visor core and the sun visor core along the open edge of the sun visor. In the sun visor of the click action type, even when the sun visor hits the ceiling surface during storage in the ceiling, the impact sound etc. can be reduced by the cushioning action of the cushion sheet when the sun visor of the click action type is it can.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sun visor for an automobile according to the present invention will be described below in detail with reference to FIGS.

FIG. 1 is an external view showing an embodiment of an automobile sun visor according to the present invention, FIG. 2 is a sectional view showing the automobile sun visor stored in a ceiling surface, and FIG. 3 is an automobile sun visor according to the present invention. FIG. 4 is a configuration explanatory view showing a high-frequency urulder mold of the sun visor skin in the sun visor, and FIG. 4 is a cross-sectional view showing a welding process of the sun visor skin by the high-frequency welder mold.

1 and 2, an automobile sun visor 10 according to the present invention has an L-shaped rotating shaft 11 inserted into one longitudinal end of a sun visor body 20 having a desired light shielding area. The sun visor body 20 is rotatably supported by the rotation shaft 11, and the rotation shaft 11 is fixed to the ceiling surface 13 via the bracket 12.

In the present embodiment, the sun visor body 20 is supported at two points, a rotating shaft 11 and an auxiliary knob 14, and the auxiliary knob 14 is fitted to a holder 15 provided on the ceiling surface 13 side. Be worn.

The sun visor body 20 is mounted on the ceiling surface 13.
Can be moved up and down around the rotation shaft 11 between the storage position stored in the front window and the deployed position that is substantially parallel to the front window, and the rotation shaft 11 is rotated around the bracket 12. Thus, the operation on the side window side is also possible. Note that a recess 16 slightly larger than the sun visor body 20 is formed in the ceiling surface 13, and the sun visor body 20 is stored in the storage recess 16 as shown in FIG. 2.

Next, the configuration of the sun visor body 20 will be described. The sun visor body 20 includes a sun visor core 30 forming a core, a sun visor skin 40 enclosing the outer surface of the sun visor core 30, and a sun visor body 20.
And a cushion sheet 50 interposed between the sun visor core 30 and the sun visor skin 40 so as to face the ceiling surface 13 along the open edge a of the vehicle.

More specifically, the sun visor core 30
Is a 20-fold foamed PP bead foam, a PVC sheet is used for the sun visor skin, and a polyurethane sheet having a thickness of about 2 mm is used for the cushion sheet 50. As a guideline of the density, it is sufficient that the density is about 0.02 g / cm ^3. If the density is higher than necessary, a step appears on the surface of the product. And no effective tapping sound absorption is performed.

In addition, as a material for the sun visor core 30, a PE bead foamed molded article or a polyurethane foamed molded article can be used. The features of the sun visor core 30 are light weight, excellent impact resistance, and moldability. A PP bead foam molded article is preferred because it is good and inexpensive.

Further, as the sun visor skin 40, PV
In addition to the C sheet, it is possible to use a composite sheet material or cloth having a nonwoven fabric lined with a PVC sheet, and the cushion sheet 50 may be a polyurethane sheet other than a polyurethane sheet as long as it has cushioning and restoring properties. A general-purpose foamed resin sheet can be used.

Next, FIG. 3 is a schematic view showing a configuration of a high frequency welder mold used when integrating the sun visor core 30 and the sun visor skin 40, and FIG. 4 is a schematic view showing a sun visor core using the high frequency welder mold. It is explanatory drawing which shows the integration process of 30 and the sun visor skin 40.

First, as shown in FIG. 3, the high-frequency welder mold 60 is composed of an upper and lower mold of a lower welder mold 61 and an upper welder mold 62. The lower welder mold 61 has a lower electrode 63 and a welder. The upper die 62 is provided with an upper electrode 64 corresponding thereto, and a high-frequency oscillator 65 is provided between the upper and lower electrodes 63 and 64.

The tip of the upper electrode 64 is formed to be sharp so that the cutting process can be performed simultaneously with the welding process.

Then, the sun visor core 30 and the sun visor skin 40 are set on the welder lower mold 61. At this time, the sheet-like sun visor skin 40 is positioned on the upper and lower surfaces of the sun visor core 30 and the upper and lower welders 61 and 62 are clamped as shown in the figure, and then the high-frequency oscillator 65 is passed between the lower electrode 63 and the upper electrode 64. By energizing, the sun visor skin 40 is welded along the peripheral edge 30a of the sun visor core 30. At this time, the material is pressed down along the product shape of the sun visor body 20 by the welder upper and lower dies 61 and 62, but the cushion sheet 50 interposed at a predetermined position between the sun visor core 30 and the sun visor skin 40 is As shown in FIG. 4 (a), this pressure causes a flat compression.

After the sun visor skin 40 is welded, the upper and lower weld dies 61 and 62 are opened, and the sun visor body 20 taken out of the high frequency welder mold 60 is opened.
In FIG. 4B, since the cushion sheet 50 has a restoring property, tension is applied to the sun visor skin 40 in a direction in which a gap between the peripheral portion 30a of the sun visor core 30 and the welded portion 41 of the sun visor skin 40 is eliminated. As shown in (1), the welded portion 41 of the sun visor skin 40 comes into close contact with the sun visor core 30, and wrinkles and the like do not occur, and a good appearance can be maintained.

Therefore, the peripheral portion 30 of the sun visor core 30
Because clearance does not occur wrinkles even if large set (shown in Figure 3 reference numeral d ₁₎ between the welding portion 41 a and sun visor skin 40, as in the prior art the adjustment of the clearance d ₁ Strict precision is not required,
There is an advantage that the accuracy of the mold and the accuracy of the alignment during the welding process can be roughly performed, and the management can be easily performed.

The open end a of the sun visor body 20 is used to rotate the sun visor body 20 up and down.
Since it is a part to be touched by the hand, a good touch feeling can be maintained due to the cushioning property of the cushion sheet 50, and particularly, the rotating shaft 11 is connected to the sun visor body 2.
In the sun visor of a so-called click action type in which a spring force is applied by a leaf spring (not shown) housed in the housing 0, when the sun visor body 20 shown in FIG.
The click action force tends to generate an impact sound when the sun visor body 20 collides with the ceiling surface 13, but the cushioning action of the cushion sheet 50 can mitigate the impact sound and discomfort when the sun visor 20 is stored. And there is an advantage that operability is improved.

In this embodiment, the cushion sheet 50 is provided only on the side of the open edge a of the sun visor body 20. However, the cushion sheet 50 may be provided on the entire circumference depending on the specification. The thickness dimension of the long side edge portion of the cushion sheet 50 may be gradually changed so as not to cause the problem.

In the present embodiment, the sun visor skin 40
Although a high frequency welder mold 60 was used to use a PVC sheet as the material, when a cloth is used as the sun visor skin 40, the welding process of the sun visor skin 40 may be performed using an ultrasonic welding horn. The invention is not limited to the embodiments described above.

[0035]

As described above, the automotive sun visor according to the present invention has the following special effects.

(1) According to the first aspect of the present invention, since the cushion sheet is interposed between the sun visor core and the sun visor skin around a part or the entire periphery of the sun visor core. After covering the outer surface of the sun visor core with the sun visor skin, and welding the sun visor skin, the restoring action of the cushioning sheet eliminates the gap between the sun visor core and the sun visor skin along the periphery of the sun visor body. Therefore, the sun visor core and the sun visor skin are brought into close contact with each other, which has the effect of significantly improving the appearance of the peripheral portion.

(2) According to the first aspect of the present invention, the cushion sheet is interposed between the sun visor core and the sun visor skin around a part of or the entire periphery of the sun visor core. Since the clearance between the peripheral portion of the sun visor core and the welded portion of the sun visor skin can be set relatively large, the puncture defect in which the welded portion of the sun visor skin is peeled can be reliably prevented, and the clearance adjustment work can be simplified. This has the effect of reducing processing accuracy during die processing.

(3) According to the second aspect of the present invention, since the cushion sheet having elasticity and restoring property is arranged along the open edge side of the sun visor body, the cushion of this cushion sheet is provided. By virtue of this property, when the sun visor is rotated, a good feeling of touch is obtained, and there is an effect that the rotation operability can be improved.

(4) According to the second aspect of the present invention, since the cushion sheet having elasticity and restoring property is arranged along the open edge side of the sun visor main body, especially the sun visor main body is provided. When the sun visor is retracted and unfolded, a click action force is applied when the sun visor is retracted and deployed. It can be absorbed by the action and does not give an uncomfortable feeling when the sun visor is stored, which also has an effect that good operability can be secured.

[Brief description of the drawings]

FIG. 1 is an external view showing an embodiment of an automotive sun visor according to the present invention.

FIG. 2 is a sectional view showing a state in which the automobile sun visor shown in FIG. 1 is stored on a ceiling surface.

FIG. 3 is a schematic diagram showing the configuration of a high-frequency welder mold used for welding the sun visor skin in the automotive sun visor shown in FIG. 1;

FIGS. 4A and 4B are explanatory views showing a configuration in which a sun visor skin is integrated with an outer periphery of a sun visor core in the automotive sun visor shown in FIG. 1, wherein FIG.

FIG. 5 is a partially cutaway front view showing a conventional sun visor for an automobile.

FIG. 6 is an explanatory view showing a step of welding a sun visor skin in a conventional automobile sun visor.

[Explanation of symbols]

Reference Signs List 10 Sun visor for automobile 11 Rotating shaft 13 Ceiling surface 16 Storage recess 20 Sun visor main body 30 Sun visor core 30a Peripheral edge 40 Sun visor skin 41 Welding part 50 Cushion sheet 60 High frequency welder mold 61 Welder lower mold 62 Welder upper mold 63 Lower electrode 64 Upper part Electrode 65 High frequency oscillator a Open edge d ₁ Clearance

Claims (2)

[Claims] 1. A sun visor core (3) made of a foam molded article.
0) encapsulating the outer surface with sun visor epidermis (40),
A sun visor for automobiles, wherein a sun visor body (20) formed by welding a sun visor skin (40) along a peripheral portion of the sun visor core (30) is supported by a rotating shaft (11). It is assumed that a cushion sheet (50) having elasticity and restoring property is interposed between the sun visor core (30) and the sun visor skin (40) along a part or the entire periphery of (30). A sun visor for automobiles. 2. The installation position of the cushion seat (50) is a portion facing the ceiling surface (13) on the open edge (a) side of the sun visor body (20). Automotive sun visor.