JPH02185824A - Motor-driven sliding sun visor - Google Patents

Abstract

PURPOSE:To facilitate the retractility of a sun visor by installing an adjusting mechanism, enlarging an opening area at time of rising and setting of the sun visor, in a trim member, in a device which houses the sun visor retractably in a hollow part between the roof trim member and a roof panel. CONSTITUTION:When a sun visor body 15 in a state of being housed is delivered to a service position, if a motor 19 is driven, a wire 17 is moved to the front side, the sun visor body 15 is slidden to the front side as well, and an end part 15c at the front side is projected toward a front window panel 7 from an opening 13a of an on-off member 13. A pin 25a projectingly installed in the almost central part of a guide bar 25 is engaged with the inside of a long groove 15b formed on a side surface of the sun visor body 15, and when a rear side end 15a of the body 15 comes into a state of contacting with the pin 25a, the guide bar 25 is pressed and thereby rocked with a fulcrum part 25a as the center. With this constitution, the on-off member 13 is pushed downward, thus the opening 13a comes to be largely opened in consequence.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to a hollow space formed between a roof panel and an interior component mounted on the inside of a vehicle interior of a roof. The present invention relates to an electric sliding type sun visor that stores a sun visor that can freely extend and retract toward the front wind panel from an opening formed in the front wind panel.

Conventional technology Generally, a sun visor is installed on the roof side of a car above the driver's or passenger's seat to block direct sunlight from the front wind panel.
Normal sun visors are equipped with a hinge mechanism that allows the angle of installation on the roof to be varied.When not in use, the sun visor is folded toward the roof using the hinge mechanism, and when in use, it hangs down from the front of the single-room side of the front wind panel. It is normal for it to be cold.

On the other hand, for example, Japanese Patent Publication No. 45-31016 and Japanese Patent Publication No. 45-31017 disclose an electric sliding sun visor in a hollow space formed between a roof panel and an interior member attached to the interior side of the roof. A structure is disclosed in which the sun visor is stored and when the sun visor is used, the rotational force of the motor causes the sun visor to slide toward the front wind panel from an opening formed in the front of the interior member.

According to this configuration of the sun visor, since the sun visor is hidden behind the roof side by the interior member when not in use, there is an advantage that the interior of the vehicle becomes larger and the exterior appearance is improved.

Problems to be Solved by the Invention However, in the configuration of such a conventional electric sliding type sun visor, the sun visor and the sliding mechanism of the sun visor are housed in a narrow hollow space formed between an interior member and a roof panel. Therefore, the shape of the sun visor itself is limited, and various other limiting conditions are required such as the degree of inclination of the front wind panel, so there is a problem that the degree of freedom as a sun visor is small. Ta.

For example, if the shape of the sun visor itself is enlarged to increase the degree of light shielding, the sun visor may interfere with the front wind panel when the sun visor is slid toward the front wind panel from the opening formed in the front of the interior member. Therefore, it is necessary to take measures such as reducing the shape of the sun visor, making the opening in the interior member larger, or giving the sun visor a specific curvature.Furthermore, it is necessary to reduce the slope of the front wind panel. Design changes such as increasing the size are required.

Therefore, the present invention solves the problems that conventional electric sliding type sun visors have, does not impose any limiting conditions on the size and shape of the sun visor, and also allows the opening of the interior member to be simply The electric motor does not cause a deterioration in the quality of the appearance of interior components when the sun visor is retracted due to increasing its size, and the tip of the sun visor does not interfere with the front wind panel when the sun visor is slid toward the front. The purpose is to provide a sliding sun visor.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention uses the driving force of a motor to fill the hollow space formed between the interior member attached to the interior side of the roof and the roof panel. In an electric sliding sun visor configuration in which a sun visor is housed that can freely extend and retract toward the front wind panel from an opening formed in front of an interior member, the opening area when the sun visor is extended and retracted is defined as the opening area when the sun visor is retracted. The structure is equipped with an adjustment mechanism to make the area larger than the part area.

Function According to this configuration, when the sun visor is not in use, the sun visor is stored in the hollow space formed between the roof panel and the interior member attached to the interior side of the roof. As the area becomes wider, the appearance is improved.

Furthermore, when the sun visor is used, when the sun visor is slid toward the front wind panel by the driving force of the motor, the area of the opening formed in front of the interior member becomes larger than the area of the opening when it is retracted. Interference with the front wind panel is prevented, and the degree of freedom in the shape of the sun visor itself is increased.

Embodiments Hereinafter, specific embodiments of the electric slide device for a sun visor according to the present invention will be described in detail based on the drawings.

FIG. 1 is a sectional view of a main part showing a first embodiment of the present invention,
In the figure, 1 is a roof outer panel, 3 is a roof inner panel, and both panels 1.3 form a roof panel 4. Flange portions 1a, 3 of both panels 1.3 above
a is the engagement groove 5 on one side of the window weather strip 5
The upper end 7a of the front wind panel 7 is fitted and fixed to the engagement groove 5b on the other side of the window weather strip 5.

9 is an interior member lined on the interior side of the roof;
A hollow portion 10 is formed between the interior member 9 and the roof panel 4, and an electric sliding type sun visor, which will be described later, is housed within the hollow portion 10.

Further, an opening/closing member 13 is attached to the front side of the interior member 9 via a shaft 1l. This opening/closing member 13 is made of the same material as the interior member 9, and is made of the same material as the shaft body 11.
It is rotatably attached to the interior member 9 about the center of rotation. An opening 13a is formed at the front end of the opening/closing member 13.

On the other hand, a hook 21 is fixed to the lower part of the front side of the roof inner panel 2 and close to the window weather strip 5, and the periphery of the opening 13a formed in the opening/closing member 13 It is in contact with the lower end surface.

The configuration of the electric sliding sun visor will be described below. That is, 15 is a sun visor body made of a plate-shaped body, and a long groove 15b is dug in the side surface of the sun visor body 15 on the blade side.
A wire 17 is connected to the rear end portion 15a of.

Reference numeral 19 denotes a motor disposed within the hollow portion 10 as a driving source for the wire 17.

Furthermore, inside the opening/closing member 13, there is a long hole 2 extending in the front-rear direction.
A guide member 23 having a groove 3a formed thereon is fixed, and a guide bar 25 is disposed between the guide member 23 and the hook 21.

That is, the pin 2 protruding from the approximate center of the guide bar 25
5a is inserted into the long groove 15b dug in the side surface of the sun visor body 15, and the front end of the guide bar 25 is rotatably supported by the hook 21 by the shaft support 25b. A pin 25C protruding from the rear end of the guide member 23 is inserted into the elongated hole 23 of the guide member 23.
It is slidably inserted into the inside of a.

The guide member 23 and the guide bar 25 constitute an adjustment mechanism 26 for freely changing the opening area of the opening 13a formed in the opening/closing member 13.

Although a specific structural example of the motor 19 will be described later, a thin ultrasonic motor that can directly drive the wire 17 can be used.

The operation of the first embodiment of the sun visor electric slide device having such a configuration is as follows.

First, when the motor 19 is started from the state shown in FIG.
is pushed by the wire 17 and slides to the front side,
A front end 15c of the sun visor body 15 projects from the opening 13a of the opening/closing member 13 toward the front wind panel 7. At this time, since the pin 25a protruding from the approximate center of the guide bar 25 is inserted into the long groove 15b dug in the side surface of the sun visor body 15, the sun visor body 15 is moved forward using the pin 25a as a guide. Move smoothly in the direction.

Due to this movement, the rear end 15a of the sun visor body 15 reaches the pin 25a, and when the sun visor body 15 continues to slide toward the front side, the rear end 15a of the sun visor body 15 reaches the pin 25a. 2
5a is pushed toward the front side, and accordingly, the guide bar 25 to which this pin 25a is connected starts rotating clockwise in the drawing about the shaft support 25b. Then, the pin 25c protruding from the rear end of the guide bar 25 moves toward the front side while sliding inside the elongated hole 23a of the guide member 23, and at the same time, the opening/closing member 13 is moved by the rotational force of the guide bar 25. acts to push downward. Due to the downward pushing force of this guide bar 25,
As shown in FIG. 2, since the opening/closing member 13 rotates counterclockwise around the shaft 11, the opening area of the opening 13a formed at the front end of the opening/closing member 13 is substantially reduced. It will be in a state where it is greatly expanded. Therefore, the sliding direction of the sun visor body 15 is diagonally downward on the front side (this means that the sun visor body 15 and the front panel 7 do not interfere with each other).

Next, when storing the sun visor body 15 to its original state, by rotating the motor 19 in the reverse direction from the state shown in FIG. 2, a tensile force is generated in the wire 17. After the long groove 15b dug in the side surface of the sun visor body 15 reaches the pin 25a protruding from the approximate center of the guide bar 25, the pin 25
a to the rear side, so that the guide bar 25
Rotate counterclockwise around 5b.

This rotational force generates an upward force on the pin 25G, and this upward force causes the opening/closing member 13 to rotate clockwise around the shaft body 11, so that the opening/closing member 13 returns to the state shown in FIG. is stored in the hollow part 10.

FIG. 3 is a sectional view of main parts showing a second embodiment of the present invention,
Components that are the same as those in the first embodiment are designated by the same reference numerals. That is, in the case of the second embodiment, a bracket 27 is disposed inside the opening/closing member 13, and a bi-folding link 29 is provided between the bracket 27 and the hook 21.
The link 29
The central portion 29C of the sun visor body 15 is pivotally supported at the rear end portion of the sun visor body 15. That is, this bi-folding link 29 corresponds to the adjustment mechanism 26 in the first embodiment. The other main components are the first embodiment and the road.
It is.

According to the second embodiment, when the motor 19 is started from the state shown in FIG. When pushed by the wire 17 and slid to the front side, the bi-folding link 29
Since the opening/closing member 13 is opened to the state shown in FIG.
The area of the opening a is substantially expanded. Furthermore, when the sun visor body 15 has finished sliding toward the front side, the bi-folding link 29 closes in the opposite direction to that shown in FIG. 3, as shown in FIG. Based on this, the opening/closing member 13 rotates clockwise about the shaft body 11, and the opening area of the opening 13a is reduced to its original state.

Next, when storing the sun visor body 15 to its original state, by rotating the motor 19 in the reverse direction from the state shown in FIG. 4, a tensile force is generated in the wire 17. The opening/closing member 13 once rotates to the state shown in FIG. 4 based on the opening action of the link 29, and then the sun visor body 15
By sliding toward the rear side, the opening/closing member 13 returns to the state shown in FIG. 3.

That is, in the case of the second embodiment, an operating mode is obtained in which the opening/closing member 13 rotates about the shaft body 11 only when the sun visor body 15 slides in the front-back direction, and the area of the opening taa becomes larger.

A specific example of the ultrasonic motor M as an example of the motor 19 disposed within the hollow portion 10 will be explained with reference to FIGS. 6 to 8. That is, on the shaft 33 inserted and fixed to the interior member 9,
An annular stator 35 is fixed as a vibrating body,
A substantially annular rotor 37 is mounted on the upper surface of the stator 35 on the shaft 3.
It is rotatably supported around 3 as a rotation center. A peripheral edge 37a of the rotor 37 is pressed against a peripheral edge of the stator 35.

Furthermore, as shown in FIG. 7, a circumferential groove 37b is formed on the upper surface of the rotor 37.
A plurality of balls 39.39 are arranged within. or,
As shown in FIG. 8, deep groove portions 37c are formed in the circumferential groove 37b, in which the balls 39, 39 are arranged at regular intervals.

Reference numeral 41 denotes a gear, and a toothed portion 41a is carved on the peripheral edge thereof, and a similar deep groove portion 41C is formed on the lower surface of the gear 41 at a portion corresponding to the deep groove portion 37c formed on the rotor 37. ing.

That is, the balls 39 are sandwiched between the deep groove portion 37c on the rotor 37 side and the deep groove portion 41c on the gear 41 side.

In the illustrated example, the balls 39, 39 are simply fitted into the deep grooves 41c of the gear 41;
9.39 may be welded within the deep groove portion 41C.

Incidentally, it is also possible to form the above-mentioned circumferential groove 37b on the gear 41 side instead of the rotor 37 side, and in this case, the balls 39, 39 are welded into the deep groove portion 37c on the rotor 37 side. It's okay.

The above rotor 37. The gear 41 and the balls 39 constitute a clutch mechanism for transmitting the rotational force of the rotor 37 to the wire 17 side.

43 is a disc spring for pressing the gear 41 against the rotor 37WI. Further, a side portion of the wire 17 is meshed with a tooth portion 41a carved in the peripheral portion of the gear 41. That is, the wire 17 is preliminarily provided with rack-shaped teeth that can engage with the teeth 41a along the longitudinal direction.

According to the configuration of the ultrasonic motor M, the stator 3 is driven using a drive voltage of a predetermined frequency obtained from a drive power source (not shown).
By exciting the stator 5, bending vibration is caused in the stator 35, and this bending vibration causes the rotor 3 to vibrate.
7 starts rotating in either direction. This rotor 3
7 is transmitted to the gear 41 via the balls 39, 39 and rotates the gear 41, so that the wire 17 meshed with the teeth 41a of the gear 41 starts to slide. By sliding this wire 17, the sun visor body 15 can be moved in and out as described in the above embodiment.

When an excessive force is applied to the gear 41 from the outside when driving the ultrasonic motor M, the deep groove portion 41 of the gear 4I
The ball 39.39 fitted in G deviates from the deep groove part 37c of the rotor 37, moves on the circumferential groove 37b formed on the rotor 37, and moves to another adjacent deep groove part 37c. , is again fitted and disposed within this deep groove portion 37c.

Further, the rotation direction of the rotor 37 can be freely changed by changing the excitation frequency applied to the stator 35.

In the above embodiments, a rotary type ultrasonic motor was used as the motor 19, but the motor used in the present invention is not limited to this, and a general electric motor may be used. Wire 1 using an ultrasonic motor
7 may be driven.

Effects of the Invention As explained in detail above, according to the structure of the electric sliding sun visor according to the present invention, the motor is installed in the hollow space formed between the roof panel and the interior member attached to the interior side of the roof. In an electric sliding sun visor configuration in which a sun visor is retracted and retracted from an opening formed in the front of the interior member toward the front wind panel by a driving force of Since the configuration includes an adjustment mechanism for making the opening area larger than the opening area when stored, the following effects are brought about. That is, when the sun visor is not in use, the sun visor is attached to the roof on the inside of the vehicle and is housed in the hollow space formed between the upholstery and the roof panel, making the interior of the vehicle larger and improving the exterior appearance. On the other hand, when the sun visor is used, the sun visor is slid toward the front wind panel by the driving force of the motor, so that the opening area formed in front of the interior member becomes larger than the opening area when it is stored. , the sun visor can be made to appear and disappear without interference between the sun visor and the front wind panel.

In addition, there are no restrictions on the size and shape of the sun visor itself or the degree of inclination of the front wind panel, so for example, it is possible to increase the shape of the sun visor itself in order to increase the degree of light shielding. It has the advantage of increasing the degree of freedom as a sun visor.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the main parts showing a first embodiment of the electric sliding type sun visor according to the present invention, FIG. 2 is a cross-sectional view of the main parts showing the state during the same operation, and FIG. FIG. 4 and FIG. 5 are cross-sectional views of the main parts showing the same operation state, and FIG. 6 is one of the ultrasonic motors used in this example.
A cross-sectional view showing an example, FIG. 7 is a cross-sectional view of the rotor 37 of the ultrasonic motor taken along the line ■-■ in FIG. 6, and FIG. 8 is a cross-sectional view taken along the line ■-■ in FIG. be. 1... Roof outer panel, 2... Roof inner panel, 5... Window weather strip, 7...
Front wind panel, 9...Interior parts, 10...
・Hollow part, 11... Shaft body, 13... Opening/closing member, 13
a... opening, 15... sun visor body, 17...
・Wire, 19...Motor, 21...Hook, 23
... Guide member, 25 ... Guide bar 26 ... Adjustment mechanism, 29 ... Link (bifold type), 33 ... Shaft body, 35 ... Stator, 37 ... Rotor, 37b・・・
・(Circumferential) groove, 37c, 41c... deep groove part, 39
... Ball, 41 ... Gear, 43 ... Belleville spring, No. 6

Claims (1)

[Claims] (1) In the hollow space formed between the roof panel and the interior member attached to the interior side of the roof, the driving force of the motor extends from the opening formed in front of the interior member toward the front wind panel. In the electric sliding sun visor configuration in which a retractable sun visor is retracted, the interior member is provided with an adjustment mechanism for making the opening area when the sun visor extends or retracts larger than the opening area when the sun visor is retracted. Electric sliding sun visor.