JPS5929511A - Light shielding device for automobile - Google Patents

Abstract

PURPOSE:To make it possible to automatically carry out the vertical adjustment of the titled device wherein the shielding of light of two windows of which heights differ from each other is selectively performed by one sun visor by providing a drive means in a mounting bracket fixed to the ceiling of an automobile. CONSTITUTION:The base 5a of a shaft 5 is inserted into and supported by a bracket 4A fixed to a roof trim 8, etc. At the middle part of the base 5a located inside the bracket 4A, thread ridges 11 of which pitch coincides with spiral groove 10 inside the bracket are provided. The pitch of this tread ridge 11 may be such that it causes the shaft 5 to move upward or downward by a diatane of H, difference in elevation, while the shaft 5 is rotated by such an angle (about 90 deg.) from a front window 1 to a side window 2. By this arrangement, the vertical movement of the shaft is automatically carried out by simply setting a sun visor at a desired position, and the overall area of the sun visor can be effectively utilized.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shading device for an automobile, and more particularly to a shading device that blocks light from two adjacent windows with a single sun visor.

As is well known, the relationship between a front window 1 and a side window 2 in a recent automobile is configured as shown in the first diagram, and the upper edge 1a of the front window 1 is located at a higher position than the upper i1a of the side window 2. It is in.

By the way, these windows 1.2 are usually constructed so that light can be selectively blocked by a sun visor 6, which has a base 5a of a shaft 5 pivoted to a mounting bracket 4 installed on the ceiling near the top of the front pillar 3. . However, the shaft 5 in the conventional light shielding device can only rotate about the base 5a extending in the vertical direction as a fulcrum, so when the shaft 5 is rotated to the side window 2 (11), the door rush 7 of the side window 2 and the sun visor When the sun visors 6 partially overlap, the effective area of the sun visor 6 is reduced by the height difference I between the upper edge 1a of the front window l and the upper edge 2a of the side window 2.

In order to solve this problem, conventionally, a light shielding device was developed in 1987-5552 that had a structure in which the base of the shaft could be inserted into and removed from the mounting bracket, and the shaft was held at any desired insertion and removal position using frictional force. "This was proposed in Publication No. 4. However, with this structure of the light shielding device, the user has to take the trouble of inserting and removing the shaft every time the sun visor is operated, and the sun visor is held by friction. Since this is done by force, there is a possibility that the sun visor may fall down unexpectedly, which poses problems in terms of durability and practicality.

In view of the above-mentioned circumstances, the present invention aims to provide a light shielding device that can shield side windows from light without reducing the effective area of the sun visor, is simple to operate, and is durable. It is proposed to provide a driving means between the bases of the shaft for moving the shaft in the vertical direction by rotation of the shaft.

Embodiments of the present invention will now be described in detail with reference to FIGS. 2 and 3.

Figure 2 shows the first part of the vehicle interior equipped with the light shielding device according to the present invention.
This figure corresponds to the figure, and the same reference numerals are used for the same 1'i parts as in Fig. 1. What should be noted in FIG. 2 is that when the shaft 5 is rotated toward the side window 2, the sun visor 6 automatically lowers as shown by the imaginary line compared to the front window 1.

This characteristic effect according to the invention is achieved by the drive means structure shown in the third figure. That is, although the mounting racket 4A is fixed to the roof trim 8 etc. with the mounting screws 9 (in which the base 5a of the shaft 5 is inserted and supported), the middle part of the base 5a located inside the supplementary issue bracket 4A is The mounting bracket is provided with threads 11 of a pitch that are screwed into the inner thread grooves 10 of the mounting bracket. To be more specific, the screw thread 11 of
The thread pitch is the angle y (approximately 9
0°), and the shaft 5 may be lowered by the height difference I (as described above) between the upper edges.

In addition, in the illustrated embodiment, a pair of stoppers 14 and 15 are provided on the base 5a of the shaft 5 to be received in the upper hole 12 and lower hole 13 of the mounting platen 4A depending on the vertical position of the shaft 5, and these stoppers Elastic protrusions 36, 17 are provided on the inner peripheral surface of the holes to allow the stoppers 14, 15 to swing when the stoppers 14, 15 are completely received in the upper holes 12 and lower holes 13. Therefore, when the sun visor 6 is in the light shielding position, the shaft 5 is completely prevented from swinging. Sweet, ~The area around the lower hole 13 of the mounting bracket 4A is extended downward and the protective wall 1 is installed.
8, by providing such a protective wall 18, even if the shaft 5 is lowered to the position shown by the imaginary line, the unsightly screw thread 11 will not be visible.

In addition, in the above embodiment, the screw thread 1 is used as the driving means.
1 and a cotton wire groove 1O are illustrated, but the present invention is not limited to the configuration of 1 and 2, and includes, for example, a pin and a cotton wire groove that penetrates the shaft base in the diametrical direction, and a cam means provided between the mounting bracket and the shaft base. etc. can be substituted.

After all, according to the present invention, by simply setting the sun visor at the required position, the vertical movement of the shaft is automatically performed, and the entire area of the sun visor can be effectively utilized. Since the sun visor is highly stable at each light-shielding position, there are no accidents such as the sun visor unexpectedly lowering or staying in the same position as before.

[Brief explanation of the drawing]

Fig. 1 is an explanatory perspective view showing the relationship between the conventional front door, inlet and side window as seen from the interior of the vehicle, and Fig. 2 is a perspective view similar to Fig. 1 of the interior of the vehicle equipped with the light shielding device of the present invention. 3 are enlarged sectional views showing the relationship between the mounting bracket of FIG. 2 and the shaft base. l...Front window, 1a...Top edge (of the front window), 2...Side window, 2a...Top edge (of the side window), 4.4A...
・Mounting bracket, 5...shaft, 5a...
Base (of the shaft), 10... cotton wire groove (driving means), 11... screw thread (driving means).

Claims (1)

[Claims] l) Shading of two adjacent windows with different upper edge heights,
In an automotive shading system that selectively uses a single sun visor with the base of the shaft pivoted on the ceiling, a mounting bracket fixed to the ceiling is placed between the base of the shaft to prevent the shaft from moving vertically when the shaft is rotated. A shading device for an automobile, characterized in that it is provided with a driving means for moving mh to mh.