JPH09156365A - Automotive sun visor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost of an automotive sun visor having a sun visor core covered at its surface with a cover material and enhance its productivity by reducing the number of part items of the sun visor core, and reducing the number of its mounting man-hours. SOLUTION: A sun visor main body 20 comprises a sun visor core 30 covered at its surface with a cover material 31, the sun visor core 30 comprising a resin core 40, made of an injection molding of a synthetic resin, that is inserted into an expanded molding 50 such as an expanded bead molding. The resin core 40 has a reinforcing rib 42 extending at least lengthwise or crosswise and placed on the inner edge of a peripheral frame 41 extending along the outer form of the sun visor, and a bearing support 43 and an auxiliary knob 44 are molded integrally with each other to reduce the number of part items and that of mounting man-hours.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile sun visor, and more particularly to an automobile sun visor in which a resin core material made of a synthetic resin injection molded body is inserted.

[0002]

2. Description of the Related Art Usually, an automobile sun visor is installed above a front window in a vehicle compartment on the driver's seat side and an auxiliary seat side, respectively. We are trying to secure effectively.

The structure of a conventional automobile sun visor will be described with reference to FIG. 7. In the automobile sun visor 1, a sun visor body 2 having a desired light shielding area is rotated toward the ceiling by an L-shaped rotation shaft 1a. The sun visor body 2 covers the surface of the sun visor core 3 with the skin material 4, and the sun visor core 3 is formed inside the foam molded body 5 molded into the product shape of the sun visor 1. A wire frame 6 bent in a loop shape is inserted in.

Further, a bearing support 7 as a bearing portion of the rotating shaft 3 is fixed to the wire frame 6, and a cylindrical auxiliary knob 8 to be engaged with a holder (not shown) on the vehicle body side is attached to the wire frame 6. Has been.

Further, in order to increase the commercial value of the sun visor 1, many types have been proposed in which a vanity mirror or a lighting unit equipped with a vanity mirror is additionally provided. In such a case, in order to hold the mirror unit and the lighting unit. The support plate 9 is fixed to the wire frame 6 as shown in FIG.

[0006]

As described above, in the conventional automobile sun visor 1, the bearing support 7 and the auxiliary knob 8 must be attached to the wire frame 6 of the sun visor core 3, and the number of parts is large, and Since the number of man-hours for mounting is also large, it causes a cost increase and is a major factor of reducing productivity.

Further, when the sun visor body 2 is provided with a mirror unit, a lighting unit, etc., it is necessary to install a support plate 9 in addition to this, and it is pointed out that the cost and the productivity are lowered. Was there.

The present invention has been made in view of the above circumstances, and parts such as a bearing support for bearing a rotating shaft and an auxiliary knob for engaging a holder on the vehicle body can be eliminated, and the number of parts and the number of mounting steps can be reduced. The purpose of the present invention is to provide a sun visor for automobiles capable of achieving a significant reduction in

[0009]

In order to achieve the above object, the present invention relates to a sun visor for an automobile, in which a sun visor core is covered with a skin material to form a sun visor body. A resin core made of a synthetic resin injection molded body is inserted into the foam molded body that shapes the product shape of the sun visor, and this resin core material is integrally molded with reinforcing ribs extending in the vertical and horizontal directions at the inner edge of the peripheral frame along the peripheral edge of the product. In addition, the bearing support that holds the rotating shaft and the auxiliary knob that engages with the holder on the vehicle body side are integrally formed.

Here, the sun visor body is constructed by covering the surface of the sun visor core with a skin material, and further, the sun visor core has a resin core material made of a synthetic resin injection molded body inserted inside the foam molding. ing.

As the foamed molded article, a foamed beaded molded article obtained by beading foamed resin particles made of polystyrene or a molded foamed molded article obtained by molding a thermoplastic resin mixed with a foaming agent may be used. However, in consideration of weight reduction and impact resistance, the foamed bead molding is preferable.

Further, the resin core material is provided with reinforcing ribs extending at least in the vertical and horizontal directions on the inner edge of the peripheral frame along the outer shape of the sun visor, and the resin core material has a bearing support for bearing the rotating shaft. And an auxiliary knob that is engaged with a holder on the vehicle body side are integrally formed.

The reinforcing ribs provided on the resin core material may be formed in an oblique direction in addition to the vertical and horizontal directions, and rigidity is particularly required in the central portion for holding the mirror unit and the illumination unit. It is better to provide many intersections between the reinforcing ribs in the part.

On the other hand, as the skin material for enclosing the surface of the sun visor core, synthetic resin sheets such as vinyl chloride sheet or woven cloth,
A non-woven cloth material or the like may be used as appropriate, but when high-frequency welder welding is performed along the periphery of the sun visor, a vinyl chloride sheet excellent in high-frequency welder characteristics is preferable.

As is apparent from the above construction, in the sun visor core, a resin core material made of a synthetic resin injection molding is inserted into a foam molding molded into a desired shape, and a rotating shaft is attached to the resin core material. Since the bearing support for bearing and the auxiliary knob are integrally formed, it is not necessary to separately prepare the bearing support and the auxiliary knob, and the mounting work is also unnecessary.

Further, when the mirror unit and the illumination unit are provided in the sun visor body, the resin core material can be provided with a support function for supporting these units, and the conventionally required support plate of the unit is unnecessary.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sun visor for an automobile according to an embodiment of the present invention.

FIGS. 1 to 4 show a first embodiment of the present invention. FIG. 1 is a front view of an automobile sun visor showing a state in which a skin material and a foamed molded body are partially cut away, and FIG. FIG. 3 is a sectional view showing the structure of the automobile sun visor, FIG. 3 is a front view showing an embodiment of a resin core material used in the automobile sun visor, and FIG. 4 is a process of molding a sun visor core of the automobile sun visor according to the present invention. It is sectional drawing shown.

5 and 6 show a second embodiment of the present invention. FIG. 5 is a front view of a sun visor with a mirror unit, and FIG. 6 is a sectional view showing a state in which the mirror unit is attached to the sun visor body. is there.

First, a first embodiment of the present invention will be described with reference to FIGS.

First, the overall structure of the automobile sun visor 10 will be described with reference to FIGS. 1 and 2. The automobile sun visor 10 has a sun basil main body 2 having a desired light shielding area.
0 and L that rotatably supports the sun visor body 20
The rotation shaft 21 is formed in a character shape, and the rotation shaft 21 is rotatably inserted in a bracket 22 fixed to the vehicle body side.

The sun visor body 20 is constructed by covering the surface of a sun visor core 30 with a skin material 31, and the sun visor core 30 has a resin core material 40 made of a synthetic resin injection molded body inside a foam molded body 50. It is configured by inserting.

More specifically, as the skin material 31, a synthetic resin sheet such as a vinyl chloride sheet or a cloth material such as a woven cloth or a non-woven cloth may be arbitrarily selected.

As the foam molded article 50, a foam bead molded article such as polystyrene beads, which is excellent in weight saving and impact resistance, is used in the present embodiment, but the foam molded article 50 is not limited to this, and the polyurethane foam molded article or It is also possible to use a thermoplastic resin foam molded product such as a polyolefin resin or a polyethylene resin mixed with a foaming agent.

By the way, the feature of the present invention lies in the structure in which the resin core material 40, which is an injection-molded body of synthetic resin, is inserted inside the seed foam molded body 50.

That is, as shown in FIG. 3, in the resin core material 40, reinforcing ribs 42 extending at least vertically and horizontally are provided on the inner edge of the peripheral frame 41 along the outer shape of the sun visor body 20 (this embodiment). In the embodiment, a reinforcing rib extending in an oblique direction is additionally provided), and a bearing support 43 for supporting the rotating shaft 21 and an auxiliary knob 44 are integrally formed on the resin core material 40.

As described above, since the resin core material 40 has the reinforcing ribs 42 extending in the vertical and horizontal directions, and if desired in the oblique directions, disposed on the inner peripheral edge, and the bearing support 43 and the auxiliary knob 44 are integrally formed. Compared to the conventional structure that uses a wire frame, the shape retention of the sun visor is superior, and it is not necessary to attach a bearing support or auxiliary knob separately, so it is possible to reduce the number of parts and the number of mounting steps. The production cost can be reduced and the productivity can be significantly increased.

For reference, the manufacturing process of the sun visor core 30 will be described with reference to FIG. 4. In the drawing, split molds 60 and 70 are used for molding the sun visor core 30, but one mold on one side is used. A bead supply feeder 80 for supplying polystyrene beads to the molding die 60 is provided.
Each of the molds 60, 70 has a steam supply pipe 62, 72 for supplying steam into the steam chamber 61, 71 and a steam chamber 61, 71.
Cooling water supply pipes 63 and 73 for supplying cooling water and drain pipes 64 and 74 for discharging the cooling water are provided therein.

Therefore, after the resin core 40 is set in the molding dies 60, 70, the molding dies 60, 70 are clamped,
After the styrene beads are filled and supplied from the bead supply feeder 80 into the cavity, steam is supplied into the steam chambers 61 and 71 to induce a foaming reaction, and then cooling water is supplied to the steam chamber 6.
The foamed molded body 50 into which the resin core material 40 is inserted can be molded into a required shape by supplying the resin core material 1 and 71 and hardening them.

Although not shown, the sheet-shaped skin material 31 is sandwiched between the front and back surfaces of the sun visor core 30 formed in this manner to form a sun visor 10.
The production of the sun visor body 20 is completed by applying high-frequency welder welding along the periphery of the product.

Next, FIGS. 5 and 6 show a second embodiment of the present invention, in which a mirror unit 90 is provided at the substantially central portion of the surface of the sun visor body 20.

In this mirror unit 90, a vanity mirror 92 is fixed substantially at the center of a unit base 91, and an opening / closing lid 93 is provided so as to cover the vanity mirror 92.

The structure of the sun visor body 20 to which the mirror unit 90 is attached is basically the same as the structure of the sun visor body 20 shown in FIGS. 1 to 4, but only different points will be described. Then, the sun visor body 20 is formed with a recess 23 for accommodating the mirror unit 90, and as shown in FIG.
The dimension height of the reinforcing ribs 42a of the resin core 40 in the recess 23 is set to be small, and the reinforcing ribs 42a in the recess 23 are arranged between the ribs 42a in order to enhance the mounting strength of the mirror unit 90, that is, the support function. Many intersections are set and the reinforcement function is strengthened.

The bearing holder 43 and the auxiliary knob 44 are integrally formed on the resin core material 40 in the same manner as in the above-described embodiment, and ultrasonic vibration is applied to the mirror unit 90 and it is fixed to the sun visor body 20. .

Therefore, according to this embodiment, a support plate for supporting the mirror unit 90 is not required, and there is an advantage that the mirror unit 90 can be firmly supported by the reinforcing ribs 42a of the resin core material 40.

Further, instead of the mirror unit 90, an illumination unit provided with lamps can be installed.

[0037]

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

(1) In the automobile sun visor according to the present invention, a resin core material made of a synthetic resin injection-molded body is inserted into a foam molded body as a structure of a sun visor core, and a bearing support and an auxiliary member are attached to the resin core material. Since the knob is integrally molded, there is no need to separately attach a bearing support or an auxiliary knob to the wire frame as in the past, reducing the number of parts and the mounting man-hours, which leads to a significant cost reduction. This has the effect of significantly increasing productivity.

(2) In the sun visor for automobiles according to the present invention, a resin core material made of a synthetic resin injection molded body is inserted as a sun visor core into the foamed molded body, and the resin core material is provided along the inner edge of the peripheral frame. Since reinforcing ribs that run in the vertical and horizontal directions, and diagonally if desired, are provided, shape retention is enhanced not only at the peripheral portion but also at the central portion compared to conventional wireframes, and it does not sag It has an effect that the shape can be maintained for a long time.

(3) According to the second aspect of the invention, the mirror unit and the lighting unit are mounted on the sun visor body, and the unit is supported by the reinforcing rib of the resin core material inserted into the foamed molded body as the sun visor core. Since the support is provided, it is not necessary to fix the support plate to the wire frame by welding or the like as in the conventional case, and various units can be attached to the sun visor body at low cost.

(4) According to the third aspect of the present invention, since the resin core material having the reinforcing function, which is an injection-molded product of synthetic resin, is inserted into the foamed bead molding as the sun visor core, the foaming is performed. By taking advantage of the lightweight and excellent impact resistance of the bead molding, it is possible to promote the weight reduction of the automobile sun visor and to ensure the excellent impact absorption performance.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of an automobile sun visor according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a front view showing an embodiment of a resin core material used in the automobile sun visor shown in FIG.

4 is a cross-sectional view showing a molding process of a sun visor core in the automobile sun visor shown in FIG.

FIG. 5 is a front view showing a second embodiment of an automobile sun visor according to the present invention.

6 is a cross-sectional view showing a mounted state of the unit in the automobile sun visor shown in FIG.

FIG. 7 is a partially cutaway front view showing a conventional automobile sun visor.

FIG. 8 is a front view showing a modified example of a sun visor core in a conventional automobile sun visor.

[Explanation of symbols]

 10 Sun visor for automobile 20 Sun visor body 23 Recessed portion 30 Sun visor core 31 Skin material 40 Resin core material 41 Peripheral frame 42 Reinforcing rib 43 Bearing support 44 Auxiliary knob 50 Foam molding 60, 70 Mold 90 Mirror unit

Claims (3)

[Claims] 1. A sun visor for an automobile, comprising a surface of a sun visor core (30) covered with a skin material (31) to form a sun visor body (20), wherein the sun visor core (30) is a product shape of the sun visor. A resin core material (40) made of an injection-molded body of synthetic resin is inserted into a foam molding body (50) that forms a frame, and the resin core material (40) has a peripheral frame (4) along the periphery of the product.
1) Reinforcing ribs (42) extending in the vertical and horizontal directions are integrally formed on the inner edge, and a bearing support (43) for holding a rotating shaft and an auxiliary knob (44) for engaging a holder on the vehicle body side are integrally formed. A sun visor for automobiles characterized by 2. A surface of a sun visor core (30) is covered with a skin material (31) to form a sun visor body (20), and a mirror unit is provided in a recess (23) on the front side of the sun visor body (20). In the automotive sun visor having (90) attached, the sun visor core (30) has a resin core material (40) made of a synthetic resin injection molded body inserted inside a foam molded body (50) for shaping a product shape, This resin core material (40)
A reinforcing rib (42) extending in the vertical and horizontal directions is integrally formed on the inner edge of the peripheral frame (41) along the peripheral edge of the product, and is engaged with the bearing support (43) for bearing the rotating shaft (21) and the holder on the vehicle body side. The sun visor for automobiles, characterized in that the auxiliary knob (44) is integrally molded, and the rib size of the reinforcing rib (42a) in the recess (23) for accommodating the unit (90) is set small. 3. The automobile sun visor according to claim 1, wherein the foam molded body (50) of the sun visor core (30) is formed of a foam bead molded body.