JPH0529927Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mounting structure for an automobile sunshade.

[Prior art] A sunshade is often installed under the sunroof of an automobile (Utility Model 1989-
(See Publication No. 110424). As a conventional mounting structure for an automotive sunshade, for example, the one shown in FIG. 3 has been adopted. In FIG. 3, a sunshade 11 made of a material with a relatively large coefficient of thermal expansion, such as polypropylene resin or polyamide resin, is slidably supported on both sides by rails 12 attached to the roof panel. ing.

[Problems to be solved by the invention] However, since the sunshade is installed directly under the sunroof in a location where temperature changes are large, the conventional mounting structure does not allow for the size of the sunshade made of a material with a large coefficient of thermal expansion as described above. The change is large, and there is a risk of rattling in the direction perpendicular to the sliding direction or falling off.

For example, in FIG. 4 showing the side view of the conventional sunshade mounting structure, in the case of the sunshade 11 made of polypropylene resin whose dimension l is 1000 mm at a temperature of 20°C, in order to reduce the wobbling of the sunshade 11, If the gap (dimension a) between 11 and rail 12 is 1 to 4 mm,
When the temperature of the sunshade 11 rises to 45 to 120°C, the dimension a becomes almost 0 due to thermal expansion, making it impossible to slide. On the other hand, if dimension a is set to 6 mm at 20°C so that sliding is possible even at high temperatures, dimension a will be 2 mm and sliding will be possible even at 120°C, but when the temperature decreases to -30°C, dimension l will change. is approximately 996mm,
Dimension a is approximately 8mm, and the width of the rail (dimension b) is
If it is about 15 mm, the sun shade 11 will fall off if it leans toward one of the rails 12.

The present invention was made in order to solve the above problem, and provides a sunshade mounting structure that prevents the sunshade from rattling or falling off due to temperature changes, even when using a sunshade made of a material with a high coefficient of thermal expansion. The purpose is to provide.

[Means for Solving the Problems] The present invention consists of a sunshade, a rail for guiding the sliding movement of the sunshade, and a material made of a material having a coefficient of thermal expansion smaller than that of the material of the sunshade in a direction substantially perpendicular to the sliding direction. It consists of a plurality of rod-shaped reinforcing members that are arranged in a row and attached to the sunshade, and a sliding member that is attached to both ends of the reinforcing member and is slidably supported by a rail, and the length of the reinforcing member and the sunshade is equal to the length of the reinforcing member. The sliding member has a main body having a U-shaped cross section, and a front end of the reinforcing member provided inside the main body. The present invention relates to a mounting structure for an automobile sunshield, which includes a fitting part that fits together, and spring parts made of curved leaf spring material provided on the top, bottom, and side surfaces of the main body, respectively.

[Function] In the automotive sunshade mounting structure of the present invention, the sunshade is supported via a rod-shaped reinforcing member made of a material with a small coefficient of thermal expansion and sliding members attached to both ends of the rod-shaped reinforcement member, and its sliding movement is guided. Therefore, even if the sunshade is made of a material with a large coefficient of thermal expansion, the sunshade is prevented from rattling or falling off due to temperature changes.

[Example] As the material of the sunshade used in the present invention, conventionally used resin materials having a large coefficient of thermal expansion, such as polypropylene resin and polyamide resin, can be used.

The sunshade is made of a material with a relatively small coefficient of thermal expansion, such as aluminum, stainless steel,
Multiple rod-shaped reinforcing members made of metal such as plated steel plates,
They are arranged substantially perpendicular to the sliding direction and are fixed. The above-mentioned fixing is carried out only at approximately the center of the length direction of the reinforcing member and at the center of the width direction of the sun shade in order to evenly release the difference in thermal expansion and contraction amount due to the difference in the coefficient of thermal expansion between the sun shade and the reinforcing member to both sides. is fixed.

Sliding members are provided on both sides of the reinforcing member, and the sliding members are slidably supported by the rails, so that the sliding of the sun shade is caused by the rails via the reinforcing members and the sliding members. You will be guided there.

FIG. 1 is a perspective view showing an embodiment of the sunshade mounting structure of the present invention, and FIG. 2 is a side view of the sunshade mounting structure shown in FIG. 1.

In Figures 1 and 2, 1 is a sunshade made of a resin flat plate and a square corrugated plate, and is dimensioned so that it has a width wider than the distance between rails 2a and 2b even at the lowest temperature during use. . A reinforcing member 3 made of a metal round bar is inserted into each peak or a specific peak of the sunshade 1, and displacement of the reinforcing member 3 in directions other than the axial direction is restrained.

The reinforcing member 3 has a size suitable for being inserted between the rails 2a and 2b after the sliding members 4 are attached to both ends, and has a lengthwise central portion and a widthwise central portion of the sunshade 1. is fixed point 5
It is fixed by.

The sliding member 4 consists of a main body with a U-shaped cross section, and has a fitting part 6 provided inside the main body that fits with the reinforcing member 3, and a curved part to prevent wobbling within the rails 2a and 2b. It has a spring portion 7 made of a leaf spring material.

In such a sunshade mounting structure, even if the sunshade 1 expands or contracts due to a temperature change, the amount of expansion or contraction of the reinforcing member 3 is small, so that the sunshade is prevented from rattling or falling off.

[Effects of the invention] The automotive sunshield mounting structure of the present invention prevents rattling between the rails of the sunshade even when the sunshade expands or contracts due to temperature changes due to solar heat or changes in outside temperature. It has the effect of preventing it from falling off the rail.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the sunshade mounting structure of the present invention, Fig. 2 is a side view of the sunshade mounting structure shown in Fig. 1, and Fig. 3 is a conventional sunshade mounting structure. The perspective view and FIG. 4 are side views of the conventional sunshade mounting structure shown in FIG. 3. Main symbols in the drawings: 1... Sunshade, 2a,
2b...Rail, 3...Reinforcing member, 4...Sliding member.

Claims (1)

[Scope of utility model registration request] a sunshade, a rail that guides the sliding movement of the sunshade, and a plurality of rod-shaped reinforcing members that are made of a material having a coefficient of thermal expansion smaller than that of the material of the sunshade and that are arranged in a direction substantially perpendicular to the sliding direction and that are attached to the sunshade. , a sliding member attached to both ends of a reinforcing member and slidably supported by a rail, and the reinforcing member and the sunshade are arranged at a longitudinal center portion of the reinforcing member and a widthwise center portion of the sunshade. are mutually fixed only at
The sliding member has a main body having a U-shaped cross section, a fitting part provided inside the main body into which the front end of the reinforcing member fits, and curves provided on the top, bottom and side surfaces of the main body, respectively. A mounting structure for an automotive sunshade consisting of a spring part made of a flat spring material.