JPH09156364A - Sun visor for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To significantly simplify installing work of a wiring harness, and enhance productivity by forming a harness housing groove part in which the wiring harness is pushed on one surface of a foaming core material of a sun visor in the sun visor where an illuminating unit is installed on the surface side of a sun visor main body. SOLUTION: In a sun visor main body, one end of an L-shaped rotary shaft is rotatably inserted into a holder 41 in the sun visor main body, and the other end of the shaft is rotatably inserted into a bracket. This sun visor main body is formed by covering and wrapping a surface of a foaming core material 21 with a skin material, and has a recessed part 23 to house an illuminating unit. In this case, in the foaming core material 21, the recessed part 23 to house the illuminating unit is arranged in a recessed shape in the almost center of one side surface, and at the same time, a harness housing groove part 24 to house a wiring harness is formed on the surface side of a fomaing base material 21. The wiring harness is pushed in this, and can be installed in the sun visor main body.

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 having an illumination unit, which facilitates assembly of wiring harnesses.

[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.

In recent years, many sun visors for automobiles have been proposed, especially for the sun visor on the auxiliary seat side, which are provided with a vanity mirror, a lighting unit and the like to enhance the commercial value.

For example, taking a conventional automobile sun visor provided with a lighting unit as an example, and referring to FIG. 7 and FIG. 8, the sun visor 1 is one end side of the sun visor body 2 having a desired area for shielding sunlight rays and the like. The rotating shaft 3 is rotatably inserted into the bracket 3, and the rotating shaft 3 is rotatably inserted into a bracket 3a attached to the vehicle body side.

An illumination unit 4 is attached to the center of the surface of the sun visor body 2.

The sun visor body 2 is constructed by covering the surface of a foamed core material 5 such as a foamed bead molding, which is lightweight and has excellent impact resistance, with a skin material 6.

FIGS. 9 and 10 show the structure of the foamed core material 5. The foamed core material 5 is preformed in the product shape of the sun visor 1, and a recess 5a for accommodating the lighting unit 4 is formed. In addition, a through hole 5b is formed in the foamed core material 5 in order to insert the wiring harness 7 that supplies a current to the lighting unit 4.

Therefore, in order to form the through hole 5b for inserting the wiring harness 7 in the foam core material 5, as shown in FIG. 11, the silicone tube 9 is inserted into the molding die 8 to form the foam core material. After molding 5, the silicone tube 9 is pulled out to form the through hole 5b for inserting the wiring harness 7 in the foam core material 5.

[0009]

As described above, in the conventional sun visor with a lighting unit, in order to assemble the wiring harness 7 to the sun riser main body 2, the silicone tube 9 is previously inserted into the molding die 8 to form the foam core. After the molding of the material 5, the silicone tube 9 is pulled out, and then the wiring harness 7 is inserted into the through hole 5b, which requires a lot of troublesome work, resulting in a significant reduction in production efficiency.

The present invention has been made in view of such circumstances, and an object thereof is to provide an automobile sun visor which can greatly simplify the work of assembling the wiring harness and improve the productivity.

[0011]

In order to achieve the above object, the present invention constitutes a sun visor body by covering a surface of a foamed core material with a skin material, and an illumination unit on the surface side of the sun visor body. In the sun visor for automobiles, the harness accommodating groove portion for pushing in the wiring harness connected to the lighting unit is formed on one surface of the foamed core material in the sun visor body.

Here, the sun visor body is constructed by covering the surface of a foamed core material with a skin material, and as the foamed core material, a foamed bead core material formed by bead molding of foamed resin particles of polystyrene, Although a molded core material formed by molding a thermoplastic resin mixed with a foaming agent may be used, a foamed bead core material is preferable in consideration of weight reduction and impact resistance.

A wire core material bent in a loop shape is inserted in the foam core material to enhance the shape retention.

As the skin material for covering the surface of the foamed core material, a synthetic resin sheet such as a vinyl chloride sheet or a cloth material such as a woven fabric or a non-woven fabric may be used as appropriate, but along the peripheral portion of the sun visor. In the case of high frequency welder joining, a vinyl chloride sheet having excellent high frequency welder characteristics is preferable.

Next, the harness accommodating groove portion formed in the foamed core material may be formed on one surface of the foamed core material in a shape such as a straight line or a curved shape so that the wiring harness can be easily attached, but if workability is taken into consideration. It is preferable to set a curved shape.

Further, in order to prevent the wiring harness from coming off, it is preferable to set the opening of the harness accommodating groove portion in an undercut shape.

As is apparent from the above construction, since the harness accommodating groove portion for accommodating the harness when the foam core material is molded is integrally formed, the harness is accommodated in the sun visor body when the harness is assembled in the sun visor body. If you push it into the groove, you can easily assemble the harness.

Therefore, the conventional silicone tube to be inserted into the molding die is not required, and the troublesome work such as the inserting work of the silicone tube, the extracting work and the inserting work of the wiring harness can be eliminated.

[0019]

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.

FIG. 1 is a front view showing an embodiment of an automobile sun visor according to the present invention, FIG. 2 is a sectional view showing the structure of the automobile sun visor, and FIG. 3 is a foam used in the automobile sun visor according to the present invention. Front view of the core material, FIG. 4 is a cross-sectional view of the foamed core material, FIG. 5 is a cross-sectional view showing the configuration of a molding die for molding the foamed core material, and FIG. 6 is a front view of another embodiment of the foamed core material. It is a figure.

1 and 2, the overall structure of the automobile sun visor according to the present invention will be described. The automobile sun visor 10 includes a sun visor body 20 having a desired light-shielding area, and a surface of the sun visor body 20 substantially at the center. The lighting unit 30 to be attached is generally configured.

More specifically, the sun visor body 20 is L
One end of the character-shaped rotating shaft 40 has the sun visor body 2
0 is rotatably inserted into the holder 41, the other end of the shaft 40 is rotatably inserted into the bracket 42, and the bracket 42 is attached to the ceiling side, whereby the sun visor body 20 is rotated vertically and horizontally. It is possible and can take a rotational posture at an arbitrary position.

The sun visor body 20 includes a foam core material 21.
Is covered with a skin material 22, and a recess 23 for accommodating the lighting unit 30 is formed.

On the other hand, in the lighting unit 30, a vanity mirror 32 is attached to the surface of a unit frame 31, lighting lamps 33 are arranged on both sides of the unit frame 31, and a vanity mirror 32 and a lighting lamp 33 are provided by an opening / closing lid 34. Is a structure for covering.

Then, in order to supply a current to the lighting lamp 33 of the lighting unit 30, the wiring harness 50 is inserted into the rotating shaft 40, and the lighting unit 30
Is connected to a conductor (not shown) on the illumination lamp 33 side.

In the present embodiment, as the foamed core material 21 of the sun visor body 20, a foamed bead molding of polystyrene beads is used in consideration of weight reduction and impact resistance, and foamed into a desired shape. A skin material 22 made of a vinyl chloride sheet is sandwiched between the front and back surfaces of the core material 21 and subjected to high-frequency welder welding according to the product shape of the sun visor 10, whereby the front surface side of the foamed core material 21 is covered with the skin material 22. It is configured by being encapsulated by.

By the way, a feature of the present invention is that it is possible to provide the automobile sun visor 10 in which the wiring harness 50 can be easily and inexpensively assembled to the foamed core material 21 of the sun visor body 20.

That is, FIGS. 3 and 4 show the sun visor body 2
0 shows the shape of the foamed core material 21 in 0. The foamed core material 21 is molded into a required shape by bead molding described later so as to match the product shape of the sun visor 10, and the illumination light is formed at approximately the center of one surface. A recess 23 for accommodating the unit 30 is recessed, and a wire frame 43 bent in a loop shape and a holder 41 connected to the wire frame 43 are inserted therein.

Further, a harness accommodating groove portion 24 for accommodating the wiring harness 50 is formed on the surface side of the foamed base material 21, and the harness accommodating groove portion 24 has an opening 24a formed undercut. Harness 50
It has a structure that can prevent the falling off of as much as possible.

Therefore, when molding the foam core material 21 as in the conventional case, the silicone tube is inserted, the silicone tube is removed after the foam core material is molded, and then the wiring harness is inserted into the through hole. The wiring harness 50 can be easily assembled to the sun visor body 20 by pushing the wiring harness 50 into the harness accommodating groove portion 24 without requiring an operation or expensive equipment such as a silicone tube.

Next, a method of forming the harness accommodating groove portion 24 in the foamed core material 21 will be described with reference to FIG.

In the drawing, split molds 60, 7
0 is used, but a bead supply feeder 80 for supplying polystyrene beads to the molding die 60 on one side is provided, and the steam chambers 61, 7 are provided in each molding die 60, 70.
1, steam supply pipes 62 and 72 for supplying steam into the inside 1 and cooling water supply pipe 6 for supplying cooling water for cooling the steam chambers 61 and 71
3, 73, and drain pipes 64, 74 are respectively provided.

Further, the harness containing groove portion 2 is formed in the foam core material 21.
In order to form No. 4, the forming die 70 on the other side is provided with the ridges 75 shown.

Therefore, although not shown in the drawings, the wire frame 43 to which the holder 41 is attached is not shown.
After setting, the molds 60 and 70 are clamped, styrene beads are filled into the cavity from the bead supply feeder 80, steam is supplied into the steam chambers 61 and 71, and then cooling water is supplied to the steam chamber 61. , 71, and foamed and cured, the foamed core material 21 can be molded into a required shape, and the harness accommodating groove portion 24 can be easily integrally molded.

Next, FIG. 6 shows another embodiment of the foam core material 21 used in the present invention, in which the harness accommodating groove portion 24 of the foam core material 21 is formed in an arc shape instead of a straight shape. ing.

In this way, when the harness accommodating groove portion 24 is set in a non-linear shape such as an arc shape, the wiring harness 5
The pushing operation of 0 is easy to perform, the workability is improved, and the wiring harness 50 is less likely to drop from the harness accommodating groove portion 24, so that the wiring harness 50 can be reliably held.

In the embodiment described above, a bead foam molding such as styrene beads is applied as the foam core material 21, but a thermoplastic resin mixed with polyurethane foam or a foaming agent is filled in the mold foam molding die. It is also possible to apply a foamed molded article which is molded by the above method.

[0038]

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, when the wiring harness is assembled to the sun visor body, the wiring harness can be easily attached by pushing the wiring harness into the harness accommodating groove formed in the foamed core material. Since it is completed, the expensive silicone tube as in the past can be abolished, and the labor of inserting the silicone tube, removing the silicone tube, and inserting it into the through hole of the wiring harness is troublesome. It has an effect that the workability of assembling the wiring harness can be remarkably improved by eliminating unnecessary work.

(2) In the automobile sun visor according to the present invention, the wiring harness is easily assembled by simply pushing the wiring harness into the harness accommodating groove formed in the foam core material from the opening side of the groove. Therefore, when using a silicone tube as in the past,
Since the insertion route of the wiring harness is regulated in a straight line,
Although there are restrictions in molding such as the setting position of the wire frame so as to avoid this harness route, according to the present invention, since the setting line of the wiring harness can be set arbitrarily, the wire frame, the unit mounting plate, etc. can be set. Can be arbitrarily set, and has the effect of improving the degree of freedom in shaping the sun visor body.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of an automotive 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 foamed core material used in an automobile sun visor according to the present invention.

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

5 is a cross-sectional view showing the structure of a mold used for molding the foamed core material shown in FIG.

6 is a front view showing another embodiment of the foamed core material shown in FIG. 3. FIG.

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

FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7;

FIG. 9 is a front view showing a conventional foamed core material.

10 is a sectional view taken along line XX in FIG.

FIG. 11 is a cross-sectional view showing the configuration of a molding die used for molding a conventional foamed core material.

[Explanation of symbols]

 10 Automotive Sun Visor 20 Sun Visor Main Body 21 Foamed Core Material 22 Skin Material 24 Harness Storage Groove 30 Lighting Unit 50 Wiring Harness 60, 70 Mold

Claims (3)

[Claims] 1. A skin material (2) is formed on the surface of a foamed core material (21).
A sun visor for an automobile, which comprises a sun visor body (20) encapsulating 2) and an illumination unit (30) attached to the surface side of the sun visor body (20), wherein a foam core in the sun visor body (20) Material (21)
On one surface, the harness accommodating groove portion (2) for pushing in the wiring harness (50) connected to the lighting unit (30).
4) A sun visor for automobiles, characterized in that 2. The automobile core according to claim 1, wherein the foamed core material (21) is a foamed bead core material formed of beaded foamable beads, which is lightweight and has excellent impact resistance. Sun visor. 3. The sun visor for automobiles according to claim 1, wherein the opening (24a) of the harness accommodating groove (24) is formed in an undercut shape.