JPS62110524A - Sun visor - Google Patents

Abstract

PURPOSE:To aim at making improvements in outward showability and controllability, by holding a sun visor in the recess formed on a ceiling surface by a first thrust, while installing a lock mechanism releasing the retention so as to project the sun visor out of the recess by a second thrust. CONSTITUTION:In the state showing in illustration, rotational energizing force of a torsion spring 15 acts on the sun visor attached to a biaxial rotary shaft 11 via a housing 12a, and a pin 24 of another housing 12b is being stopped as pressed by a lock groove of a cam 16. Accordingly, the sun visor 27 is housed in a recess 28 and never exposed. On the other hand, when the sun visor 27 is taken out of the recess 28, it is pushed up. If so, these housings 12a and 12b rotate around the shaft 11, thereby the cam 16 is slidden to the left against a return spring 17. Therefore the pin 24 comes off the lock groove, while it is slides on a guide groove 21, rotating the housing 12b downward, so that the sun visor 27 is projected from the recess 28.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a sun visor that shields sunlight from entering through an automobile's fluorocarbons, windows, door windows, etc. to ensure safety when driving late.

<Prior art> Fig. 8 (7) Fig. 13 shows an example of a conventional sun visor.
FIG. 14 shows a separate case. These are all Freon)・
This is a sun visor that functions as a window, and the conventional example shown in FIGS. A light shielding plate 3 is attached to the. When the sun visor is not used, the light shielding plate 3 is located on the ceiling surface 1 as shown by the dashed line in FIGS. 8 and 10. When using the sun visor, the passenger rotates the light shielding plate 3 downward. Adjust the angle as shown by the solid lines in Figures 8 and 10, or
A biaxial rotating shaft 2 is rotated as shown by the arrow in the figure, and a light shielding plate 3 is positioned on the door window side, thereby blocking sunlight from entering through the window. FIG. 11 shows a mechanical part that performs such angle adjustment, in which a biaxial rotating shaft 2 is inserted into a clamping plate 4 mounted within a light shielding plate.

A notch t: parallel portion 5 is formed in the biaxial rotation shaft 2 in the axial direction, and a bifurcated leaf spring 6 is attached to the clamping plate 4 for applying a frictional force to the biaxial rotation shut. As shown in FIG. 12, when the leaf spring 6 is pressed against the parallel portion 5, the light shielding plate can be stopped on the ceiling side, and as shown in FIG. 13, when the arcuate portion is not pressed against it. With this, it is possible to stop the light shielding plate on the window side at a desired angle (Publication No. 55-62412 for Utility I).
.

In the conventional example shown in FIG. 14, a recess 7 is formed in the ceiling surface 1, and the light shielding plate 3 is housed in the recess 7 so that the light shielding plate 3 is not exposed.

<Problems to be Solved by the Invention> However, in the conventional examples shown in FIGS. 8 to 13 above, the light shielding plate is exposed below the ceiling surface even when not in use, which is not only unfavorable in terms of appearance but also obtrusive. It has become an existence. On the other hand, in the conventional example shown in FIG. 14, the light shielding plate is stored in the recess, so there is no such inconvenience, but it is difficult to take out the light shielding plate from the recess, and there are operational problems. 59-114126).

Means for Solving the Problems> The present invention solves the problems of the conventional example, and the light-shielding plate is not exposed when not in use, and the light-shielding plate can be easily taken out when in use. It provides a sun visor.

For this reason, the sun visor of the present invention is formed to have a size that substantially matches the recess formed in the ceiling surface, so that it can be stored in the recess, and it can be held in the recess by the first push. The device is characterized in that it is provided with a locking mechanism that operates to project out of the recessed portion by the second push, thereby improving operability.

<Example> Fig. 1 is a sectional view showing the operating state of the sun visor according to the present invention, Fig. 2 is a sectional view showing the mechanism part, and Fig. 3 is a side view thereof. The tip of the rotating shaft 11 is the housing 12 a, 12
It is inserted in b. Housing 12a, 12
b is a housing 12a which is installed in the light shielding plate, and is partially connected and integrated at the center as shown in FIG.

A bifurcated leaf spring 14 is provided between 12b.

As shown in FIG. 5, this leaf spring 14 has a head 14a which is curved into a substantially daruma shape, and this head J4a presses against the biaxial rotating shaft 11 from both sides to apply a predetermined wll direction force. The intermediate portion of the biaxially rotating shaft 11 is also formed in the same shape in which a large diameter portion 11a and a small diameter portion 11b are connected.

A torsion spring 15 is attached to the biaxial rotating shaft 11 and housings 12 n and 12 b of the sun visor like O.
A cam 16 and a return spring 17 are provided to allow the light shielding plate to be stored in and taken out of the recess in the ceiling surface. The torsion spring 15 is disposed inside the left housing 12a, and its coil portion is fitted onto the tip of the biaxially rotating shaft 11, with a hook portion 15n at one end.
is pushed into the vertical groove 18 formed in the housing 12a, and the hook portion 15b at the other end engages with the biaxial rotating shaft 11 to rotate and urge the light shielding plate downward via the housing 12a. Here, a predetermined circumferential length 7 ft 19 is formed at the tip of the biaxially rotating shirt 1-11, and the hook portion 15b at the other end of the torsion spring 15 is engaged with this long groove 19. This prevents the hook portion 15b from sliding in the circumferential direction within the long groove 19 and generating torque on the torsion spring 15 when adjusting the angle of the light shielding plate. l1
The iJ cam 16 is formed into a cylindrical shape as shown in FIG. 4, and the biaxial rotating shaft 11 is inserted into the right housing 12b. This cylindrical cam 16 has a pair of lock grooves 20 and a pair of guide grooves 21 formed on its outer peripheral surface, and an elongated hole 22 in the axial direction. Here, the guide groove 21 is bored in the circumferential direction, and the lock groove 20 is connected to the end of the guide groove 21.
A cam surface 23 that is inclined with respect to the axial direction of the cam 16 is formed on the cam surface 23 .

As a result, a pair of arrow-shaped grooves are formed on the outer peripheral surface of the cam 16. This lock groove 20 and guide groove 2
A pin 24 that slides inside the housing 12b is attached to the housing 12b to constitute a locking mechanism, and the light shielding plate, which will be described later, can be operated.

Moreover, as shown in FIG.
Both ends of the cam 16 protrude into the elongated hole 22, and the cam 16 slides in the axial direction of the biaxial rotary shaft 1-11 within the length of the elongated hole 22. The Kuno spring 17 has the effect of pressing the cam 16 like the cam toward the base side (rightward in FIG. 2) of the biaxial rotating shaft 11, and in this embodiment, a compression spring is used. is disposed coaxially with the cam 16 inside the housing 12b in a state where it is externally inserted onto the biaxial rotating shaft 11.

FIG. 7 shows a ceiling surface 26 of a car to which the above-described sun visor is attached. Two-axis rotating shear y I-11
is attached to the front end of the ceiling surface 26 so as to be horizontally rotatable, and the light shielding plate 27 is attached to the above-mentioned mechanical part (dashed line part A in FIG. 7).
It is attached to the biaxial rotating shaft 11 via. A recess 28 is formed in the ceiling surface 26 to accommodate the light shielding plate 27. The recess 28 has a size that approximately matches the light shielding plate 27. When the light shielding plate 27 is stored in the recess 28, the light shielding plate 27 is not exposed. , which is pleasing in appearance and does not get in the way.

Next, the operation of the sun visor configured as above will be explained. In the state shown in FIG. 2, the rotational force of the torsion spring 15 is acting on the "C" light shielding plate 27 via the housing 12a, and the pin 24 of the housing 12b is inserted into the locking groove of the cam 16.
It is pressed to 0 and stopped. In this state, the light shielding plate 27 is stored in the recess 28 in the ceiling surface and is not exposed, as shown by the solid line in FIGS. 1 and 7. When removing the light shielding plate 27 from the recess 28, the lower surface of the light shielding plate 27 is pressed upward with a finger or the like. Due to the oppression of Party B,
The housings 12a and 12b rotate around the biaxial rotating shaft, and the pin 24 of the housing 12b slides the cam 23 of the cam 16 in the direction of escape from the lock groove 20, making the cam 1
6 to the left in FIG. 2 against the biasing force of the return spring 17. Therefore, pin 24 is locked f
At the same time as leaving R20, the two-axis rotating shirt I・11
Since the small diameter portion 11b of the housing 12b is sandwiched between the leaf springs 14 and the frictional force is reduced, the housing 12b1, ie The light shielding plate 27 is rotated downward, and the light shielding plate 27 engages and protrudes from the inside of the recess 28 . As a result, the passenger can adjust the angle by appropriately rotating the light shielding plate 27, but when adjusting the angle, the hook portion 15b at the other end of the torsion spring 15 is connected to the biaxial rotating shaft. Since it slides in the long groove 19 of 1, no torque is generated in the torsion spring 15. Therefore, as shown by the two-point vA line in FIGS. 1 and 7, the light shielding plate 2 is
7 is angularly supported at any position. , In order to store the light shielding plate 27 in the recess 28 of the ceiling surface 26, the light shielding plate 27 is
The pin 24t of the housing 12b reaches the end of the guide groove 21 by pushing it up into the recess 28.

During this pushing up, the hook portion 15b at the other end of the torsion spring 15 slides in the opposite direction within the long groove 19 of the biaxial rotating shaft 11 and comes into contact with one end of the long groove 19, and is pushed up again. After some torque is generated in the torsion spring, when the pushing force is slowly released, the cam 16 slides to the right in FIG. is engaged. In other words, the pinot 24 is biased and engaged in the lock groove 20 of the cam 16 in the insertion direction, and the light shielding plate 27 is locked.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications are possible. For example, the selection spring 15 is mounted on the right housing 12b, the cam 16 and the return spring 1
7 may be arranged in the left housing 12a, the leaf spring 14 that adjusts the angle of the light shielding plate 27 may be bent into another shape, and the lock groove 20 of the cam 16 and the guide groove 2 may be bent into other shapes.
1 may be molded into other shapes.

<Effects of the Invention> According to the present invention as described above, when the sun visor is not in use, the light shielding plate is stored in the recess in the ceiling surface of the car, which is good for the appearance and does not get in the way. Since it can be taken out with a single touch, it has the advantage of being easy to operate.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the operating state of the sun visor according to the present invention, and FIG. 7 is a cross-sectional view taken along the line I-I, and FIGS. 2 and 3 are cross-sectional views and right side views showing the mechanical parts of the present invention. , Figure 4 is a perspective view of the cam, Figures 5 and 6 are the ■-V of Figure 2.
sectional views taken along lines and ■-■; FIG. 7 is a perspective view showing the operation;
8 and 9 are perspective views showing the operation of the conventional example;
Figure 0 is a cross-sectional view of the same, Figure 11 is an exploded perspective view of its mechanical parts, Figures 12 and 13 are cross-sectional views showing the relationship between the biaxial rotating shaft and the leaf spring, and Figure 14 is a conventional side-tilt view. FIG. 11 Biaxial rotating shaft, 14 Leaf spring, 15 Torsion spring, 16 Cam, 17 Return spring, 20 Lock groove, 21 Guide groove, 23 Cam west, 24 Pin patent applicant Nissan Motor Co., Ltd. Kasai Kogyo Co., Ltd. NHK Spring Co., Ltd.

Claims (1)

[Claims] A sun visor of a size that substantially matches a recess formed in a ceiling surface, the sun visor being held in the recess by a first push of the sun visor, and projected out of the recess by a second push. A sun visor comprising a locking mechanism for releasing the above-mentioned retention.