Sunshade device

Abstract

To provide a sunshade device capable of restraining inward projection of an end part of a shade screen on a drawing side.SOLUTION: A sunshade device is equipped with a shade screen which is rolled up such that it is free to be drawn out, and includes: a bag-shaped part attached at an end part of the shade screen on a drawing side; a core material which is harder than the shade screen and the bag-shaped part and has a cylindrical part at an end part; and a cap member which is of a screw shape with a head part and a body part and has a plurality of ribs formed in parallel to a direction of insertion into the cylindrical part and projecting from the body part so as to interfere with an inner surface of the cylindrical part, the cap member being attached to an end part of the core material by insertion of the body part into the bag-shaped part. The core material with the cap member attached thereto is contained in the bag-shaped part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sunshade device for a vehicle. [Background technology]

[0002] Sunshade devices are installed on vehicle doors and other areas to block direct sunlight for glare prevention and to protect privacy inside the vehicle. In many sunshade devices, when not in use, the shade screen for blocking light is stored in a rolled state inside the door body. When in use, the shade screen is pulled upward along the window glass, and hooks or the like provided on the pull-out end of the shade screen engage with engagement parts on the door side, holding it in a predetermined usage position covering the window glass.

[0003] The configuration of a sunshade device is proposed, for example, in Patent Document 1. Patent Document 1 proposes a configuration for a winding device that winds up a shade screen, to prevent the pull-out side end of the shade screen from protruding from the winding device after the shade screen has been wound up. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6247152 Summary of the Invention [Problem to be solved by the invention]

[0005] In vehicles such as passenger cars, in order to protect occupants, restrictions are imposed on the amount of protrusion, radius of curvature, impact absorption capacity, etc., of protrusions inside the vehicle cabin (hereinafter referred to as "internal collisions"), etc. In other words, in vehicles such as passenger cars, it is desirable to prevent internal collisions inside the vehicle cabin as much as possible.

[0006] As described above, the above Patent Document 1 proposes a configuration in which the pull-out side end of the shade screen does not protrude from the winding device when the shade screen is stored in the winding device, and inward protrusion is suppressed when the shade screen is stored in the winding device.

[0007] However, Patent Document 1 does not disclose any configuration or shape for preventing inward collision when the shade screen is pulled out and held in the use position. In particular, since the pull-out end of the shade screen is often provided with a core material for maintaining the shape of the pull-out end, if, for example, the layout of the vehicle interior is such that there is a risk that the heads of occupants may come close to the core material in the event of a vehicle collision, measures must be taken to prevent the core material from impinging inward.

[0008] The present invention has been made to solve the problems of the background art as described above, and has an object to provide a sunshade device that can prevent the pull-out side end of the shade screen from protruding inward. [Means for solving the problem]

[0009] In order to achieve the above object, the sunshade device of the present invention is a sunshade device having a shade screen that is wound up so as to be freely pulled out, A member separate from the shade screen a bag-shaped portion attached to the pull-out end portion of the shade screen; a core material that is harder than the shade screen and the bag-shaped portion and has a cylindrical portion at an end; a cap member that is thread-shaped and has a head and a body, and has a plurality of ribs formed parallel to the insertion direction into the cylindrical portion and protruding from the body portion so as to interfere with the inner surface of the cylindrical portion, the body portion being inserted into the cylindrical portion and attached to the end of the core material; and The core material to which the cap member is attached is contained in the bag-shaped portion. 、 the length of the core member to which the cap member is attached is shorter than the width of the bag-shaped portion in the longitudinal direction; Both ends of the bag-shaped portion in the longitudinal direction are welded or bonded, and the bag-shaped portion seals the space containing the core material and the cap member. It is a composition. [Effects of the Invention]

[0010] According to the present invention, it is possible to prevent the pull-out side end of the shade screen in the sunshade device from protruding inward. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a schematic diagram showing an example of the configuration of a sunshade device of the present invention. [Figure 2] 2 is a plan view showing the bag-shaped portion shown in FIG. 1 attached to a shade screen. FIG. [Figure 3] 2 is a cross-sectional view showing an example of the relationship between the core material and the bag-shaped portion shown in FIG. 1. FIG. [Figure 4] 2 is a schematic diagram showing how a cap member is attached to the core material shown in FIG. 1. FIG. [Figure 5] 5 is a cross-sectional view showing an example of the relationship between the core material and the cap member shown in FIG. 4. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] Next, the present invention will be described with reference to the drawings.

[0013] Fig. 1 is a schematic diagram showing an example of the configuration of a sunshade device of the present invention, and Fig. 2 is a plan view showing the state in which the bag-shaped portion shown in Fig. 1 is attached to a shade screen. Fig. 3 is a cross-sectional view showing an example of the relationship between the core material and the bag-shaped portion shown in Fig. 1. Fig. 4 is a schematic diagram showing the state in which a cap member is attached to the core material shown in Fig. 1, and Fig. 5 is a cross-sectional view showing an example of the relationship between the core material and the cap member shown in Fig. 4.

[0014] Fig. 3 shows an example of a cross section seen from the direction of line A-A' shown in Fig. 2, and Fig. 5 shows an example of a cross section seen from the direction of line B-B' shown in Fig. 4. Figs. 1 to 5 are schematic illustrations of each component of the present invention, and do not accurately show the dimensions, shape, structure, position, etc. of each component.

[0015] As shown in Figure 1, the sunshade device of the present invention has a bag-shaped portion 2 attached to the pull-out side end 11 of the shade screen 1, a core material 3 that is harder than the shade screen 1 and the bag-shaped portion 2 and is contained in the bag-shaped portion 2, and a cap member 4 attached to the end of the core material 3.

[0016] FIG. 1 shows the shade screen 1 without the bag-shaped portion 2 attached to the pull-out end 11 in order to illustrate the core 3 and cap member 4 contained in the bag-shaped portion 2. The lever 5 shown in FIG. 1 is a component that is held by a passenger or the like when pulling out the shade screen 1 from a winding device (not shown). The lever 5 is rotatably attached to the core 3 exposed in a cutout portion 6 provided, for example, near the center of the length of the bag-shaped portion 2. The pulled-out shade screen 1 is held in a predetermined usage position covering the window glass by, for example, hooking the core 3 exposed in the cutout portion 6 provided near both ends of the length of the bag-shaped portion 2 onto a hook (not shown) provided on the door side. Any known configurations may be used for pulling out the shade screen 1 and for holding the pull-out end 11 in the predetermined usage position.

[0017] The shade screen 1 is formed using a flexible sheet-like member that blocks at least a portion of transmitted light. The shade screen 1 is freely retractable and wound up, and stored in a winding device (not shown) provided at the end opposite the retractable end 11. The shade screen 1 may be made of a mesh fabric with a mesh, a fabric without a mesh, or a cloth woven from synthetic fibers such as polyester fabric. The shade screen 1 may be made of a transparent sheet that blocks ultraviolet rays and the like, or a translucent sheet that provides a privacy effect by diffusing transmitted light.

[0018] The bag-shaped portion 2 is formed, for example, from a sheet-like member that is thicker than the shade screen 1. The bag-shaped portion 2 is folded in two at the pull-out side end 11 of the shade screen 1 and welded or glued with the end of the shade screen 1 sandwiched therebetween, thereby forming a bag-like shape having a space for containing the core material 3 and the cap member 4 (see FIG. 3).

[0019] The bag-shaped portion 2 is formed so that its width in the longitudinal direction is the same as or slightly larger than the width of the shade screen 1 at the drawer-side end 11. For example, synthetic leather with a thermoplastic resin layer can be used for the bag-shaped portion 2. If a material with a thermoplastic resin layer is used for the bag-shaped portion 2, the bag-shaped portion 2 can be easily welded to the shade screen 1. As will be described later, the length of the core material 3 to which the cap member 4 is attached is shorter than the width of the bag-shaped portion 2 in the longitudinal direction, so that the space containing the core material 3 and the cap member 4 is sealed by welding or bonding both ends of the longitudinal direction of the bag-shaped portion 2. Figure 2 shows the bag-shaped portion 2 attached to the drawer-side end 11 of the shade screen 1 shown in Figure 1.

[0020] 3, the core material 3 is inserted into the internal space of the bag-shaped portion 2 and is used to maintain the shape of the bag-shaped portion 2 (pull-out end portion 11). The length of the core material 3 is set to a length that allows both longitudinal ends of the bag-shaped portion 2 to be sealed when the cap member 4 is attached, and that allows the shapes of both longitudinal ends to be maintained.

[0021] The core material 3 is harder than the shade screen 1 and the bag-shaped portion 2, and has a cylindrical tubular portion 31 at at least one end. The core material 3 may be a solid rod-shaped member with a material such as resin filled inside. However, even when a rod-shaped member is used for the core material 3, the end of the core material 3 is provided with the above-mentioned tubular portion 31. As a cap member 4 made of a resin or the like is press-fitted into the end (tubular portion 31) as will be described later, it is preferable that the core material 3 be a cylindrical member made of a metal material, such as iron. The core material 3 may be made of, for example, a steel pipe conforming to the STKM standard.

[0022] As shown in Figure 4, the cap member 4 is a screw-like member having a body portion 41 and a head portion 42, and the body portion 41 is inserted into the end of the core material 3 (the above-mentioned cylindrical portion 31), and the head portion 42 closes the end. The cap member 4 is attached to close the end of the core material 3 to prevent the end from protruding inward, and therefore may be attached to a location where inward protrusion should be prevented depending on the layout of the vehicle interior, etc., and may be attached to at least one end of the core material 3. The core material 3 with the cap member 4 attached is enclosed in the bag-shaped portion 2 together with the cap member 4. The cap member 4 is formed using a resin such as polypropylene.

[0023] As shown in Figures 4 and 5, the cap member 4 has multiple ribs 43 formed parallel to the insertion direction of the core material 3 into the tubular portion 31 and protruding from the body portion 41 so as to interfere with the inner surface of the tubular portion 31. The cap member 4 is attached to the end of the core material 3 by press-fitting the body portion 41 into the tubular portion 31. At this time, in order for the inserted cap member 4 to be stably held by the core material 3, it is necessary for the tip of each rib 43 to apply pressure evenly to the inner surface of the core material 3. Therefore, it is preferable that the number of ribs 43 is three or more, and that the ribs 43 are formed on the body portion 41 at equal intervals. Note that, since the insertion load required for press-fitting increases as the number of ribs 43 increases, it is preferable that the number of ribs 43 is three.

[0024] The head 42 of the cap member 4 is formed so that its outer diameter is the same as the outer diameter of the cylindrical portion 31 at the portion in contact with the cylindrical portion 31. As shown in FIG. 4 , the head 42 of the cap member 4 is formed so that its outer diameter becomes smaller as it moves away from the body portion 41, forming a bowl shape. The body portion 41 of the cap member 4 may have a conical portion 44 having a generally conical shape whose outer diameter gradually decreases toward the insertion end, to facilitate insertion of the body portion 41 into the cylindrical portion 31. The rib 43 may have a portion whose protrusion gradually decreases toward the insertion end, to facilitate insertion of the body portion 41 into the cylindrical portion 31. Such a cap member 4 can be formed, for example, by injection molding.

[0025] Another possible method for attaching the cap member 4 to the end of the core material 3 is a claw-fitting structure, in which a claw is provided on the cap member 4 and a hole or the like is provided on the end of the core material 3 to fit into the claw. Alternatively, a terminal clamping structure is possible, in which an arc-shaped groove is provided in the head 42 of the cap member 4 to clamp the end of the core material 3. However, the claw-fitting structure requires additional processing (such as hole drilling) on ​​the core material 3, which increases the manufacturing cost of the sunshade device. On the other hand, the terminal clamping structure requires the outer diameter of the head of the cap member 4 to be larger than the outer diameter of the tubular portion 31 of the core material 3, resulting in a step at the contact point (boundary) between the core material 3 and the head 42 of the cap member 4. In this case, the step appears as an unevenness on the outer surface (design surface) of the bag-shaped portion 2 containing the core material 3 and the cap member 4. Furthermore, in the end clamping structure, the insertion load for press-fitting the groove of the cap member 4 into the end of the core member 3 becomes large, making the assembly work of the cap member 4 to the core member 3 difficult.

[0026] In the present invention, a rib 43 that interferes with the inner surface of the tubular portion 31 of the core material 3 is provided on the body portion 41 of the cap member 4, and the cap member 4 is press-fitted from the end of the tubular portion 31 to be held by the core material 3. This simple structure eliminates the need for additional processing, such as drilling holes in the core material 3. This allows the cap member 4 to be attached to the core material 3 while suppressing increases in manufacturing costs. Furthermore, by adjusting the pressure of the rib 43 against the inner surface of the tubular portion 31 by changing the amount of protrusion of the rib from the body portion 41, the insertion load required to press-fit the cap member 4 into the core material 3 can be made relatively small. This makes it possible to manually assemble the cap member 4 to the core material 3. Furthermore, providing the rib 43 on the body portion 41 of the cap member 4 prevents the cap member 4 from falling off due to vehicle vibrations or deterioration over time.

[0027] Furthermore, the cap member 4 can be formed so that the outer diameter of the head 42 is the same as the outer diameter of the tubular portion 31 at the contact point between the tubular portion 31 and the head 42, so that no irregularities appear on the design surface of the bag-like portion 2 that contains the core material 3 and the cap member 4. Furthermore, by making the cap member 4 bowl-shaped so that the outer diameter of the head 42 becomes smaller the further it is from the body portion 41, the end of the core material 3 can be terminated without any sharp angles.

[0028] According to the present invention, the core material 3, the ends of which are closed by the cap members 4, is contained within the bag-shaped portion 2, so that the entire core material 3, including the cap members 4, is covered by the bag-shaped portion 2. Furthermore, by providing the body portion 41 of the cap member 4 with the rib 43, the cap member 4 is prevented from falling off due to vehicle vibrations or deterioration over time. This prevents the ends of the core material 3 from protruding inward. This therefore prevents the pull-out side end of the shade screen 1 from protruding inward.

[0029] Furthermore, since the outer diameter of the cylindrical portion 31, which is the end of the core material 3, and the outer diameter of the head 42 of the cap member 4 at the portion in contact with the cylindrical portion 31 can be formed to be the same, no irregularities appear on the design surface of the bag-shaped portion 2 at the end of the core material 3 to which the cap member 4 is attached. Furthermore, by making the head 42 of the cap member 4 bowl-shaped, the end of the core material 3 to which the cap member 4 is attached can be terminated without having any sharp angles. Therefore, deterioration in the appearance of the design surface of the bag-shaped portion 2 is also suppressed. [Explanation of symbols]

[0030] 1 shade screen 2 pouch 3 Core material 4 Cap member 5 Lever 6 Cutout 11 Pull-out end 31 Cylindrical part 41 Torso 42 Head 43 Ribs 44 Cone section

Claims

1. A sunshade device having a shade screen that is wound up so as to be freely drawn out, a bag-shaped portion that is a separate member from the shade screen and is attached to the pull-out side end of the shade screen; a core material that is harder than the shade screen and the bag-shaped portion and has a cylindrical portion at an end; a cap member that is thread-shaped and has a head and a body, and has a plurality of ribs formed parallel to the insertion direction into the cylindrical portion and protruding from the body portion so as to interfere with the inner surface of the cylindrical portion, the body portion being inserted into the cylindrical portion and attached to the end of the core material; and the core material to which the cap member is attached is contained in the bag-shaped portion, the length of the core member to which the cap member is attached is shorter than the width of the bag-shaped portion in the longitudinal direction; The sunshade device has both longitudinal ends of the bag-shaped portion welded or bonded together, and the bag-shaped portion seals a space containing the core material and the cap member.

2. 2. The sunshade device according to claim 1, wherein the number of said ribs is three, and said ribs are formed at equal intervals on said body portion.

3. The sunshade device according to claim 1 or 2, wherein the outer diameter of the head at the portion in contact with the cylindrical portion is the same as the outer diameter of the cylindrical portion, and the outer diameter of the head is bowl-shaped and becomes smaller as it moves away from the body portion.

4. 4. The sunshade device according to claim 1, wherein the core material is made of metal and the cap member is made of resin.

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