JP2002316535A - Sun visor for vehicle, and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sun visor for vehicle which is free from wrinkles, slackness, etc., on a skin covered on a body surface, and excellent in design, and a manufacturing method thereof. SOLUTION: The sun visor 1 for vehicle comprises a sun visor body 2 and the skin 7 covered on an outer surface of the sun visor body 2. The sun visor body 2 comprises a pair of slightly rigid shape holding plates 8a and 8b obtained by foaming beads of polypropylene, and an elastic body 9 held between the pair of shape holding plates 8a and 8b. The elastic body 9 is formed of a slightly elastic material such as urethane foam, and the pair of shape holding plates 8a and 8b are energized toward an inner surface of the skin 7 by the repulsive force based on the elastic deformation of the elastic body 9.

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 a vehicle in which a surface of a sun visor body is covered with a skin and a method of manufacturing the sun visor.

[0002]

2. Description of the Related Art In the case of covering the main body of a sun visor for a vehicle with a skin made of woven or non-woven fabric, for example, cover the front and back surfaces of the sun visor main body with the outer skin of the sun visor main body. Is used. At this time, a gap may be formed between the welded portion of the skin and the outer periphery of the sun visor body, so that the sun visor body may not be covered with the skin tight. In this case, wrinkles, looseness, and the like occur in the skin, which impairs the appearance of the sun visor body and reduces the overall value of the vehicle sun visor. For this reason, conventionally, the outer skin is made of a stretchable material (for example, a sheet made of vinyl chloride), and the stretchable outer skin is covered with the outer surface of the sun visor body in close contact with the outer skin, so that wrinkles and slacks are formed. Techniques for preventing the occurrence of blemishes have been used.

[0003]

However, even if the sun visor body is covered with an elastic skin as in the prior art described above, the skin expands due to the heat of sunlight or the like, and locally expands. This is a problem because it may cause wrinkles and loosening. The present invention has been made in view of such a problem, and provides a sun visor for a vehicle which is excellent in design without causing wrinkles or looseness in the skin coated on the sun visor body and a method of manufacturing the sun visor. The task is to

[0004]

Means for Solving the Problems To solve the above problems, the invention described in each claim is constituted. Claim 1
The sun visor for a vehicle described in (1) includes a sun visor main body that is a part for blocking sunlight or the like that enters into the vehicle interior, and a skin that covers all or a part of an outer surface of the sun visor main body. The sun visor body is constituted by a rigid shape holding portion and a tension applying means for pressing the shape holding portion against the inside of the skin. `` Shape holder ''
Is formed so as to have a certain degree of rigidity by, for example, injection molding of a thermoplastic synthetic resin, and holds the shape of the sun visor body substantially constant by its own rigidity, and the sun visor body receives external force and the like. It plays a role in preventing deformation. When the shape holding section is pressed against the inside of the skin by the tension applying means, tension is continuously applied to the skin covered with the sun visor body, so that generation of wrinkles, loosening, and the like is effectively prevented.

[0005] In the vehicle sun visor according to the second aspect,
The tension applying means is constituted by an elastic body. The “elastic body” here is made of, for example, an elastic material such as urethane foam rubber or a metal spring, an elastic part, or the like. Press This makes it possible to apply a tension to the skin covered with the sun visor body by a simple mechanism, and it is possible to effectively prevent wrinkles, loosening, and the like.

According to a third aspect of the present invention, there is provided a sun visor for a vehicle.
The sun visor main body is constituted by a pair of shape holding plates constituting the front and back surfaces of the sun visor main body overlapping with an elastic body interposed therebetween. Here, the “shape holding plate” is a shape holding portion formed in a plate shape and corresponding to the shape of the sun visor body. According to the sun visor for a vehicle according to the third aspect, since the pair of rigid shape holding plates are arranged on the front side and the back side of the sun visor body, for example, the surface is depressed even when an external force or the like is applied to the sun visor body. The shape is maintained substantially constant without being deformed. In addition, since the sun visor main body is configured by overlapping the rigid plate-shaped members, it is possible to have a certain strength against bending deformation and torsional deformation.
Furthermore, a pair of shape holding plates constituting the front side and the back side of the sun visor body are pressed against the inside of the skin by the tension applying means, so that the entire surface of the skin is given tension and wrinkles and looseness are generated. Effectively prevented.

According to the method for manufacturing a sun visor for a vehicle according to the fourth aspect, the elastic body disposed between the pair of shape holding plates is compressed while the elastic body disposed between the pair of shape holding plates is moved to the sun visor body. Of the epidermis is performed. Then, the pair of shape holding plates are pushed to both sides by the elastic body, and the skin is continuously in tension from the inside. In other words, the covering of the skin on the sun visor body and the application of tension to the skin are performed at the same time, so that the vehicle sun visor covered with the skin without wrinkles or slack can be easily manufactured.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle sun visor and a method of manufacturing the same according to an embodiment of the present invention will be described with reference to the drawings. [First Embodiment] A vehicle sun visor 1 according to a first embodiment of the present invention will be described below. As shown in FIG. 1, the vehicle sun visor 1 includes a sun visor main body 2 which is a part for blocking sunlight or the like inserted into the vehicle interior, and a substantially L
The support shaft 3 is shaped like a letter and has a rod shape, and the support shaft 4 is formed in a cylindrical shape. Support shaft 3
Has a vertical axis 3a and a horizontal axis 3b, and the vertical axis 3a
Is attached to a required position on the ceiling surface of the passenger compartment via a bracket 11. The horizontal shaft portion 3b of the support shaft 3 is rotatably fitted into a bearing hole of a bearing 5 provided in the sun visor body 2. As a result, the sun visor body 2 is connected to the ceiling surface of the passenger compartment and is rotated around the axis of the horizontal shaft portion 3b, so that the sun visor main body 2 is in a storage position along the passenger compartment ceiling surface and a light shielding position along the windshield. The arrangement is switched. Inside the sun visor body 2, a wire frame 6 is provided along the outer periphery thereof, and both ends of the wire frame 6 are fixed to bearings 5 provided at the upper right end of the sun visor body 2. . The wire frame 6 is formed by bending a thin wire-shaped metal member such as a wire corresponding to the shape of the sun visor main body 2 so that the sun visor main body 2 does not bend due to external pressure or the like. It has a role to reinforce it. A support shaft 4 is provided on the left end side of the upper end of the sun visor body 2 so as to be coaxially covered with the wire frame 6. The support shaft 4 is formed as a half-cylindrical body by injection molding of a thermoplastic synthetic resin. The support shaft 4 is hung on a hook 10 provided at a required position in the vehicle cabin, so that the sun visor body is formed. It has a role of holding one end of the second unit 2 in a rotatable state.

FIG. 2 is a cross-sectional view of the vehicle sun visor 1 shown in FIG. As shown in FIG. 2, the sun visor body 2 includes a pair of shape holding plates 8 a and 8 b formed of a foam obtained by foaming polypropylene beads.
And an elastic body 9 disposed between the pair of shape holding plates 8a and 8b. The pair of shape holding portion plates 8a and 8b are formed in a plate shape corresponding to the shape of the entire sun visor main body 2, and one shape holding plate 8a constitutes the front side of the sun visor main body 2 and the other side. The shape holding plate 8b forms the back side of the sun visor body 2. The outer surface of the sun visor main body 2 formed by overlapping the pair of shape holding plates 8a, 8b and the elastic body 9 is covered with a skin 7 formed in a sheet shape with an elastic material such as vinyl chloride. I have. Epidermis 7
Is fused and joined simultaneously by ultrasonic welding or high-frequency welding from the front and back surfaces along the outer peripheral edge of the sun visor body 2 to form a bag and cover the entire outer surface of the sun visor body 2 entirely. ing. The elastic body 9 is formed of a material having a required elasticity such as urethane foam, and the shape holding plates 8a and 8b are bonded to both surfaces of the front and back surfaces thereof with an adhesive, so that the elastic body 9 is integrated with the sun visor body 2 Is composed. The wire frame 6 provided along the outer periphery of the sun visor body 2 is embedded in the elastic body 9.

In the vehicle sun visor 1 shown in FIG. 2, the elastic body 9 sandwiched between the pair of shape holding plates 8a and 8b is in a compressed state, and the elastic body 9 is elastically deformed by the elastic body 9. The pair of shape holding plates 8a and 8b are pushed out in opposite directions by the force of action. As a result, the pair of shape holding plates 8a and 8b are pressed against the inside of the skin 7 in a planar manner, and wrinkles and looseness are generated by applying tension to the whole skin 7. Effectively prevented.

A pair of shape retaining plates 8a and 8b formed by foaming polypropylene beads have required rigidity, and retain their shapes so that the surface is not dented even when an external force is applied to the sun visor body 2. Has a role.
Further, by disposing a pair of rigid shape holding plates 8a and 8b on the front side and the back side of the sun visor main body 2, the elastic body 9 formed of a material which is easily elastically deformed such as urethane foam is exposed to the outside. Therefore, the outer shape of the sun visor main body 2 is more favorably held. Furthermore, a pair of rigid shape holding plates 8a, 8
Since the sun visor main body 2 is configured by b being stacked with the elastic body 9 interposed therebetween, the sun visor main body 2 has a certain strength against bending deformation, torsional deformation, and the like.

A method of manufacturing the vehicle sun visor 1 configured as described above will be described. FIG. 3 shows a sun visor 1 for a vehicle.
It is an explanatory view for explaining the manufacturing method. As shown in FIG. 3, first, a pair of shape holding plates 8a and 8b constituting the front and back surfaces of the sun visor body 2 are prepared. The pair of shape holding plates 8a and 8b are formed by foaming polypropylene beads as described above. Next, the pair of shape holding plates 8a and 8b are stacked with the elastic body 9 interposed therebetween. A pair of shape holding plates 8a and 8b and an elastic body 9
Are joined together by an adhesive or the like for bonding a synthetic resin to form a single body, and constitute the sun visor body 2. Then, two vinyl chloride sheets 7a and 7b having a size larger than the vertical and horizontal dimensions of the pair of shape holding plates 8a and 8b are prepared, and covered on the front side and the back side of the sun visor body 2. The sun visor body 2 is covered with two vinyl chloride sheets 7a and 7b in a downward direction (in a direction indicated by an arrow F in the figure).
The load is applied, and the elastic body 9 is compressed. At this time,
The thickness X of the sun visor body 1 in which the pair of shape holding plates 8a and 8b and the elastic body 9 are overlapped with each other is reduced from the thickness X which is the natural length before the load is applied and the elastic body 9 is compressed. The thickness is reduced to the thickness Xa after the state is reached. A load is applied to the sun visor body 2 to make the thickness Xa.
The two vinyl chloride sheets 7a and 7b are melted and joined along the outer peripheral edge of the sun visor body 2 by ultrasonic welding or high-frequency welding while being compressed. As a result, the sun visor body 2 is entirely covered with the skin 7 in a bag-like shape with its peripheral edge closed. Then, when the load applied to the sun visor body 2 is removed,
Since the outer skin 7 slightly extends under the elastic force of the elastic body 9, the sun visor body 2 is slightly released from the compressed state,
The thickness is restored from Xa to Xb. The thickness Xb of the sun visor main body 2 in a state where the skin 7 is covered is smaller than the thickness X of the natural length where no load is applied to the sun visor main body 2.
The outer skin 7 covered with the elastic member 9 receives a resilient force based on the elastic deformation of the elastic body 9 and is kept in a tensioned state.

According to the method of manufacturing the sun visor 1 for a vehicle described above, the sun visor body 2 is covered with the skin 7,
The tension is applied to the skin 7 at the same time, and the manufacturing process of the vehicle sun visor 1 is simplified as a whole. In addition, the sun visor 1 for a vehicle obtained in this manner has a very good appearance because the skin 7 is covered with no wrinkles or looseness.

[Second Embodiment] A vehicle sun visor 21 according to a second embodiment of the present invention will be described with reference to FIGS. Here, FIG. 4 is a perspective view showing a structure before assembling of the vehicle sun visor 21 according to the present embodiment, and FIG. 5 shows a completed state after assembling of the vehicle sun visor 21 according to the present embodiment. FIG. FIG. 6 shows the vehicle sun visor 2 shown in FIG.
1 is a sectional view taken along line BB of FIG.

As shown in FIGS. 4 and 5, a sun visor main body 22 of a vehicle sun visor 21 according to a second embodiment.
Is a first half-shell 22 substantially divided in the thickness direction.
a and the second half shell 22b are formed in a hollow shape. These first half-shell 22a and second half-shell 22b
Is provided with a flat portion and a peripheral wall portion which rises in a curved shape from the peripheral portion of the flat plate portion, and each is formed in a half shell shape by injection molding of a thermoplastic synthetic resin.
The first half-shell 22a and the second half-shell 22b constitute the front side and the back side of the sun visor body 22, respectively.
A hole 26 into which the horizontal shaft portion 23b of the support shaft 23 is rotatably inserted is half-divided into a peripheral wall at one corner of the first and second half-shells 22a and 22b, and each is integrally formed. Is formed. Further, the horizontal shaft portion 23b of the support shaft 23 is rotatably inserted into a bearing hole 25 of a bearing 24 fixed inside the second half shell 22b. The sun visor body 22 is the horizontal shaft 2
By rotating around the axis of 3b, the arrangement is switched between a storage position along the ceiling surface of the vehicle compartment and a light blocking position along the windshield.

As shown in FIG. 4, storage cylinders 28a to 28d for storing four springs 27a to 27d are integrally provided on the inner surface of the second half shell 22b. The storage cylinders 28a to 28d include four springs 27a.
27d is a cylindrical body for accommodating one end of the second half-shell 22d therein and fixing the position thereof so as not to be displaced.
b is integrally molded at the same time as injection molding with a synthetic resin. The springs 27a to 27d whose one ends are fixed by the storage cylinders 28a to 28d are configured such that the first half shell 22a and the second half shell 22b are overlapped to form the sun visor body 22, and the other half is formed at the same time. Of the storage cylinder 29 provided on the inner surface of the first half shell 22a.
a to 29d. Thereby, the four springs 27a to 27d are connected to the hollow sun visor main body 2.
2 and without being displaced within the storage cylinder 28a.
28d and 29a to 29d in an axially elastically contractible and deformable state (see FIG. 6).

On the inner surface of the second half-shell 22b, four positioning insertion tubes 30a to 30d are provided integrally, and on the inner surface of the first half-shell 22a. , Receiving cylinders 31 at positions corresponding to the insertion cylinders 30a to 30d, respectively.
a to 31d are provided integrally. Receiving cylinders 31a-3
1d is formed as a cylindrical body having a diameter larger than the insertion cylinders 30a to 30d, and the first and second half shells 2 are formed.
At the same time that the sun visor main body 22 is formed by overlapping the 2a and 22b, the insertion tubes 30a to 30d are coaxially inserted into the receiving tubes 31a to 31d, respectively. By inserting the four insertion cylinders 30a to 30d into the receiving cylinders 31a to 31d, respectively, the first and second half shells 22a and 22b are attached to each other so as not to be displaced in directions other than the axial direction. It is fixed.

On the sun visor body 22 composed of the first and second half shells 22a and 22b overlapped, two vinyl chloride sheets covered from both front and back sides are blown / welded along the outer peripheral edge. Is done. As a result, the outer skin 32 whose peripheral portion is closed and formed into a bag-like shape is covered in a state of being in close contact with the outer surface of the sun visor body 22 (see FIG. 5). As shown in FIG. 6, both ends are accommodated in the storage tubes 28a to 28d and 29a to 2d.
Four springs 27a-27 held by 9d
d is in a state of being compressed from its natural length inside the sun visor body 22 covered with the skin 32, and the first and second half shells 22 are elastically deformed by the elastic force.
a and 22b are extruded in directions away from each other. Thereby, the first and second half shells 2 are provided inside the epidermis 32.
The tension is continuously applied by pressing the 2a and 22b, and the occurrence of wrinkles and loosening is effectively prevented.

A method of manufacturing the vehicle sun visor 21 according to the second embodiment will be described. First, a first half-shell 22a and a second half-shell for forming the front and back surfaces of the sun visor body 22 are described. Prepare 22b. This first
The second half shells 22a and 22b are formed by injection molding of a thermoplastic synthetic resin as described above. The first and second half-shells 22a and 22b are formed of a material having a certain degree of rigidity so that the outer shape of the sun visor main body 22 is not dented or deformed by the influence of external force or the like. Next, the sun visor main body 22 is formed by stacking the first and second half shells 22a and 22b while holding both ends of the four springs 27a to 27d by the storage cylinders 28a to 28d and 29a to 29d. . When the first and second half shells 22a and 22b are overlapped, the relative positioning of the two half shells can be performed by inserting the insertion cylinders 30a to 30d into the receiving cylinders 31a to 31d, respectively. , Easy to assemble. The two springs 27a to 27d were compressed by placing two sheets of vinyl chloride on the front and back surfaces of the sun visor body 22 and applying a load to the sun visor body 22 from above the covered vinyl chloride sheet. State. While the four springs 27a to 27d are in a compressed state, the two vinyl chloride sheets are blown / joined along the outer peripheral edge of the sun visor body 22 by ultrasonic waves or high frequency waves. Thus, the outer surface of the sun visor body 22 can be covered with the bag-shaped outer skin 32 whose peripheral edge is closed. In the vehicle sun visor 21 manufactured in this manner, the first and second half shells 22a and 22b are pushed out in directions away from each other by the resilience of the four springs 27a to 27d, and are continuously applied to the skin 32. Since tension is applied to the surface, generation of wrinkles and looseness is effectively prevented.

According to the manufacturing method of the vehicle sun visor 21 described above, the coating of the skin 32 on the sun visor main body 22 and the application of tension to the skin 32 are simultaneously performed, and the manufacturing process of the vehicle sun visor 21 is performed. Is simplified as a whole. In addition, the sun visor 21 for a vehicle obtained in this manner has a very good appearance because the skin 32 is covered with no wrinkles or looseness.

In the second embodiment described above, 4
The first and second springs 27a to 27d correspond to "tension applying means" or "elastic body" in the present invention.
Half shells 22a and 22b correspond to the "shape holding portion" or "a pair of shape holding plates" in the present invention.

The present invention is not limited to the above embodiment. In the first and second embodiments, the example in which the “tension applying unit” is configured by an elastic body (spring) has been described, but the present invention is not limited to this. The tension applying means may be any means capable of applying tension by pressing the shape holding portion against the inside of the skin,
For example, a tension applying means can be configured by sealing a gas between a pair of shape holding portions and providing a mechanism for pressing the shape holding portion against the inside of the skin by the gas pressure.

Although an example in which the "elastic body" is constituted by a urethane foam or a spring has been described, the present invention is not limited to such an embodiment. For the "elastic body", for example, a rubber other than urethane (for example, general-purpose rubber such as butadiene rubber), a spring member other than a spring (for example, a leaf spring, etc.), or a shape retaining portion that can be extruded by elastic force based on elastic deformation can be used. Any member can be used.

The example in which the sun visor body is formed by bead foam molding of polypropylene or injection molding of a thermoplastic synthetic resin has been described, but the present invention is not limited to such an embodiment. The present invention is applicable to a sun visor body that has a required rigidity and can hold its own shape, more preferably a plate-shaped member, regardless of the configuration. obtain. For example, the present invention can be applied even when the sun visor main body is configured by a pair of shape holding plates formed of wood.

Although an example is shown in which the skin is made of a vinyl chloride sheet, the invention is not limited to this. In the epidermis,
The present invention can be applied even when various materials such as thermoplastic synthetic resins other than vinyl chloride (for example, resin materials of polyolefins in general) and natural fiber materials such as cotton and wool are used. Further, the present invention can be applied regardless of whether the skin is made of a material having elasticity or a material that can be subjected to processing such as fusing / welding.

[0026]

As described above, according to the present invention,
The sun visor body is covered with the skin without generating wrinkles, loosening, and the like, and a sun visor for a vehicle excellent in design can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating an appearance of a vehicle sun visor according to a first embodiment.

FIG. 2 is a cross-sectional view taken along line AA of the vehicle sun visor 1 in FIG.

FIG. 3 is an explanatory diagram illustrating a method for manufacturing the vehicle sun visor according to the first embodiment.

FIG. 4 is a perspective view showing a structure before assembly of a vehicle sun visor according to a second embodiment.

FIG. 5 is a perspective view showing a completed state of a vehicle sun visor according to a second embodiment.

6 is a sectional view of the vehicle sun visor in FIG. 5 taken along line BB.

[Explanation of symbols]

1, 21 ... sun visor for vehicle 2, 22 ... sun visor body 3, 23 ... support shaft 4 ... support shaft 5, 24 ... bearing 6 ... wire frame 7 ... skin 8a, 8b ... shape holding plate 9 ... elastic body 10 ... support hook 22a: first half-shell 22b: second half-shell 27a, 27b, 27c, 27d: spring 28a, 28b, 28c, 28d, 29a, 29b, 2
9c, 29d ... storage tube 30a, 30b, 30c, 30d ... insertion tube 31a, 31b, 31c, 31d ... receiving tube

Claims (4)

[Claims] 1. A sun visor for a vehicle, comprising: a sun visor main body; and a skin covering the sun visor main body, wherein the sun visor main body includes a rigid shape holding part, and the shape holding part inside the skin. A sun visor for a vehicle, comprising: tension applying means for applying tension to the skin by pressing. 2. The sun visor for a vehicle according to claim 1, wherein the tension applying means is constituted by an elastic body, and the shape retaining portion is pressed against the inside of the skin by the elastic force of the elastic body. A sun visor for vehicles. 3. The sun visor for a vehicle according to claim 1, wherein the sun visor main body has a pair of shape holding plates constituting the front and rear surfaces of the sun visor main body with tension applying means interposed therebetween. A sun visor for a vehicle, wherein the sun visor is configured to overlap in a state where the sun visor overlaps. 4. A method of manufacturing a sun visor for a vehicle in which a sun visor body is covered with a skin, wherein: a step of preparing a pair of rigid shape holding plates; and overlapping the pair of shape holding plates with each other. Covering the outer skin with the sun visor body while compressing an elastic body disposed between the pair of shape holding plates while configuring the front and back surfaces of the vehicle. Method.