JPH0818493B2 - Sun visor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a visor that blocks sunlight from the front and side windows of an automobile.

<Prior Art> As shown in FIGS. 7 and 8, a conventional general visor has a vertical axis portion 1a of a support shaft 1 bent in an L shape around a vertical axis line around a bearing 2 fixed to a body. It is rotatably supported,
This is a structure in which the light shielding plate 6 is attached to the horizontal axis portion 1b. The seventh
In the figure, 3 is a spring receiver, 4 is a nut, and 5 is a spring.

<Problems to be Solved by the Invention> In the above-described conventional visor, when the light shield plate 6 is changed from the front window use position to the side window use position and vice versa, the light shield plate 6 has the same structure as in FIGS. As shown in FIG. 9, it has a horizontal turning locus. Therefore, since the occupant's face or head is hit in the middle of the turning trajectory, the occupant must tilt the upper body and the head to avoid this. This is a nuisance and neglects the forward warning while driving.

<Means for Solving the Problem> The present invention provides a sun visor that solves the above-mentioned conventional problems, and its characteristic configuration is that the vertical axis portion of the support shaft bent in an L shape is a body. In a sun visor, which is rotatably supported around a fixed bearing about a vertical axis and has a light shielding plate attached to a horizontal axis, the vertical axis of the support shaft is swingably supported by the bearing, and A cam mechanism for tilting the vertical axis portion to move the horizontal axis portion upward is provided between the vertical axis portion and the bearing during the turning motion between the window use position and the side window use position.

<Operation> With the above configuration, the light shielding plate that swivels between the front window use position and the side window use position moves upward in the vicinity of the occupant's head,
Turn around the occupant's head.

<Examples> Examples of the present invention will be described below with reference to the drawings. First
In FIG. 2 and FIG. 2, 1 is a support shaft, which is an L-shaped shaft formed of a vertical axis portion 1a and a horizontal axis portion 1b. The vertical axis portion 1a is supported on the bearing 2 by a spherical bearing portion 7 so as to be rotatable and swingable about the vertical axis line. Further, a light shielding plate 6 is attached to the horizontal axis portion 1b as shown in FIG.

A spring receiver 3 is fixed to the vertical axis portion 1a, a compression spring 5 is interposed between the spring receiver 3 and a bearing, and the vertical axis portion 1a is always biased to be a vertical axis line.

A cam plate 8 having a radius a from the center of the vertical axis to the cam top is fixed to the vertical axis 1a above the spring receiver 3 in the same phase as the direction of the horizontal axis 1b. It is in contact with the inner wall of 2.

Further, the bearing 2 with which the cam top of the cam plate 8 abuts
As shown in FIG. 2, a cam surface 9 having a radius b smaller than the radius length a of the cam plate 8 is formed on the inner wall of the cam plate 8 in a predetermined range D. In addition, 4 shows a nut.

Next, the operation of the above configuration will be described. In FIG. 5, the b position of the light shielding plate 6 is the front window use position, and the b position is the side window use position. Further, in FIG. 2, the cam plate 8
The position a is the position of the light shielding plate 6, and the position b of the cam plate 8 corresponds to the position b of the light shielding plate 6.

At the positions a and b of the cam plate 8, the axis of the vertical axis portion 1a of the support shaft 1 is a vertical axis line that is the same as the bearing 2, and the light shielding plate 6 attached to the horizontal axis portion 1b is in a normal use state. Is held.

When the light-shielding plate 6 is turned to change the light-shielding plate 6 from the position a in the front window use position to the position b in the side window use position, the vertical axis portion
1a rotates around its axis, and the cam plate 8 also rotates integrally.
The cam top of the cam plate 8 contacts and slides on the cam surface 9 of the inner wall of the bearing 2. Since the cam surface 9 has a radius b that is smaller than the radius length a of the cam plate 8, the vertical axis portion 1a tilts at an inclination angle of α ¹ with the spherical bearing portion 7 as a fulcrum, as shown in FIG. . As a result, the horizontal shaft portion 1b moves upward at an ascending angle of α ² as shown by the turning locus B in FIG. return.
The same operation as described above is performed when the light shielding plate 6 is turned from the side window use position to the front window use position. As a result, as shown in FIG. 6, when the light blocking plate 6 turns around the head of the occupant, the light blocking plate 6 moves upward to avoid the occupant's face and head.

In the above embodiment, the cam mechanism for tilting the vertical axis portion 1a has a structure in which the cam plate 8 fixed to the vertical axis portion 1a is brought into contact with the cam surface 9 provided on the inner wall of the bearing 2. The same operation can be obtained by providing a convex cam surface on the upper end surface of 2 and fixing a plate contacting the upper end surface of the bearing 2 to the vertical axis portion 1a.

<Effects of the Invention> As described above, according to the present invention, the vertical axis portion of the support shaft to which the shading plate is attached is tilted by the cam mechanism during the turning motion of the shading plate between the front window use position and the side window use position. The light-shielding plate is configured so as to move upward, so that the light-shielding plate avoids the occupant's face and head and makes a turning pass, eliminating the annoyance of tilting the upper body and head as in the past, and driving It does not impair your attention. In addition, the structure is simple, and the operation can be obtained in the same manner as the conventional one.

[Brief description of drawings]

FIG. 1 is a sectional view of a bearing of a support shaft showing an embodiment of the present invention, FIG. 2 is a sectional view of the bearing shown in FIG. 1 II, FIG. 3 is a sectional view of the bearing showing an operating state, and FIG. 4 is an exploded view. FIG. 5 is an inclined view, FIG. 5 and FIG. 6 are views showing a turning trajectory of the light shielding plate, FIG. 7 is a sectional view of a conventional bearing portion, and FIGS. 8 and 9 are views showing a turning trajectory of the conventional light shielding plate. is there. 1 ... Support shaft, 1a ... Vertical axis part, 1b ... Horizontal shaft part, 2 ... Bearing, 6 ... Shading plate, 7 ... Spherical shaft bearing part, 8 ... Cam plate,
9 …… Cam surface.

Claims (1)

[Claims] Claim: What is claimed is: 1. A support shaft bent in an L-shape is supported by a bearing fixed to a body so as to be rotatable about the vertical axis.
In a sun visor having a light shield plate attached to a horizontal shaft portion, the vertical shaft portion of the support shaft is swingably supported by a bearing, and the light shield plate is swung between a front window use position and a side window use position during swing movement. A sun visor characterized in that a cam mechanism for tilting the vertical axis portion and raising the horizontal axis portion is provided between the vertical axis portion and a bearing.