JPH0228490B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a visor electric device in which a visor of a foldable mirror is rotated by a motor.

Door mirrors have recently become popular as rear-view mirrors for automobiles, but while they have the advantage of having a larger image that is easier to see than the conventional fender mirrors, they protrude more outward from the vehicle body and are narrower. When driving at a certain location or parking the vehicle in a garage, there is a high possibility of contact with other objects, which is rather inconvenient. As a countermeasure to this, retractable door mirrors that can be folded down along the vehicle body have been proposed, but the circuit configuration of the drive motor for rotating the visor tends to be complicated, making the entire device expensive. There was a problem with poor operability.

The present invention has focused on this point, and has been made for the purpose of providing a visor electric device for a folding mirror that has a relatively simple circuit configuration and has good operability. is rotatably attached to the rotating shaft of a stay provided on the outer surface of the vehicle body, and the visor is rotated by a drive motor fixed to the visor. A retractable side switch is provided near the rotating shaft between the visors and is turned on when the visor is between the upright position and the fully retracted position in response to the rotation of the visor relative to the stay, and a a rotation detection switch having a stand-up side switch that is turned on when the switch is between the stand-up position; and an operation switch provided in the vehicle interior for starting the drive motor; through the normally open side of the storage visor switch and the normally open side of the standing visor switch of the operation switch and the normally open side of the storing visor switch of the rotation detection switch and the normally closed side of the storing visor switch of the rotation detection switch and the operating switch. The feature is that each is connected to a power source via the normally open side of the stand-up visor switch.

Next, the present invention will be specifically explained with reference to an illustrated example of a door mirror.

In FIG. 1, 1 is a stay attached to the vehicle body (not shown), 2 is a visor, and 3 is a mirror. The visor 2 is rotatably attached to the stay 1 by fitting the shaft hole 6 of the visor 2 onto the rotating shaft 5, fitting the moderation plate 7 and moderation spring 8, and attaching the spring retainer 9. Further, the mirror 3 is held by a mirror holder 10, and the mirror holder 10 is attached to a support plate 11 attached to the visor 2 with a ball bearing part 12.
It is tiltably supported through the

15 is a fixed gear, 16 is a visor cover, 17
18 is the drive motor, and 18 is the output shaft 1 of the drive motor 17.
The output gear 19 is a rotor attached to the output gear 7a, the fixed gear 15 is coaxially fixed to the upper end of the rotating shaft 5, and the visor cover 16 forms a cylindrical convex surface with the rotating shaft 5 as the axis. The drive motor 17 is appropriately fixed to the visor cover 16 in such a way that its output shaft 17a is parallel to the rotating shaft 5 and the output gear 18 meshes with the fixed gear 15. fixed by means. Further, the rotor 19 is a cap-shaped member attached to the visor cover 16 by an attachment arm 19a, and is coaxially covered with the upper surface of the fixed gear 15, and together with the fixed gear 15 constitutes a rotation detection switch 20. .

The rotation detection switch 20 described above has the following structure. That is, fixed contacts 23 and 24 are provided on the upper surface of the fixed gear 15 and are urged upward by a contact spring 22, and correspondingly, a ring-shaped movable contact is provided on the inner surface of the rotor 19. 2
6, arc-shaped movable contacts 27 and 28 are provided,
As shown in FIG. 2, the fixed contact 23 is connected to the movable contact 2.
6 and the movable contact 27 and the storage side switch 29
The fixed contact 24 contacts the movable contact 26 and the movable contact 28 to form an upright switch 30. Each of the movable contacts 27 and 28 is provided over a range of about 90 degrees, but the position is just before the visor 2 moves from the upright position to the retracted position when the visor 2 rotates relative to the stay 1. The storage side switch 29 is set to be turned on when the visor 2 is between the retracted position and the raised position, and the raised side switch 30 is set to be turned on when the visor 2 is between the fully retracted position and the raised position. Reference numeral 31 denotes lead wires for the drive motor 17 and rotation detection switch 20, which are led out through the interior of the pipe-shaped rotating shaft 5 and connected to a power source and an operating switch as shown in FIG.

In the wiring diagram shown in Fig. 2, reference numeral 32 is an operation switch installed in the operation panel installed near the driver's seat, and is a single-pole double-throw storage visor switch 3.
3 and a visor switch 34 for standing up.
These visor switches 33, 34 are interlocked with each other, and normally closed contacts 33b, 34, respectively.
However, if the switch is switched to the normally closed contact 33a or 34a side by a switching operation, it will self-maintain in that state, and by switching the other switch to the normally open contact 34a or 33a side, one of the The switch is of a switching type that returns to the normally closed contact 33b or 34b side. The drive motor 17 is connected to the power supply battery 35 via the storage side switch 29 of the rotation detection switch 20, the normally closed contact 34b of the visor switch 34 for standing up, and the normally open contact 33a of the visor switch 33 for storage, and is also connected to the battery 35 for rotation. Detection switch 20
It is connected to a battery 35 through a normally closed contact 33b of a stand-up side switch 30, a normally closed contact 33b of a storage visor switch 33, and a normally open contact 34a of a stand-up visor switch 34.

Next, the operation will be explained. The rotation detection switch 20 in FIG. 2 shows a state in which the visor 2 is in an upright state of use, and when the retractable visor switch 33 is operated to switch to the normally open contact 33a side,
The switch 33 is held in that state even if the hand is released, and the battery 35 - the storage side switch 29 - the normally closed contact 34b of the visor switch 34 for standing up - the drive motor 17 - the normally open contact 33a of the visor switch 33 for storage - the battery 35 A circuit is formed, and the drive motor 17 rotates the visor 2 in the retracting direction. When the visor 2 rotates to just before the storage position, the movable contact 27 of the storage side switch 29 separates from the fixed contact 23 and turns off, and the visor 2 rotates to the storage position by the inertia of the drive motor 17. Fixed contacts 23, 2 in this stored state
The position of 4 is indicated by a broken line. In addition, it is actually visor 2
The rotor 19 rotates with the rotation of the movable contact 2.
Although the contacts 6, 27, and 28 rotate, for convenience, FIG. 2 shows a state in which the fixed contacts 23 and 24 have moved relative to the movable contacts.

Next, when the visor switch 34 for raising the visor 2 is switched to the normally open contact 34a side, the visor switch 33 for retraction is switched to the normally closed contact 34a side.
Switched to the b side, the normally closed contacts 3 of the battery 35 - standing side switch 30 - storage visor switch 33
3b, the drive motor 17, the normally open contact 34a of the erecting visor switch 34, and the battery 35 form a circuit, and the drive motor 17 rotates in the direction in which the visor 2 is erected with the direction of current being reversed. Immediately before the standing position, the standing side switch 30 is turned off, and the visor 2 is moved by the drive motor 17 until it reaches the standing position.
It is rotated by the inertial force of , and is fixed in the upright state of use by the moderation action of the moderation plate and moderation spring 8.

The above explanation is for the case where there is only one drive motor 17, but if each mirror device installed on the left and right sides of the vehicle body is to be electrically controlled, the control circuits for the left and right sides should be separately configured. FIG. 3 is an example of a wiring diagram in this case. Basically, a circuit having the same configuration as that in FIG. 2 is provided in parallel to the battery 35, and L indicates a left control circuit and R indicates a right control circuit, respectively.

FIGS. 4a and 4b show an example of the arrangement of the operating parts of the operating switch 32 when control circuits are provided separately for the left and right sides. Reference numerals 32L and 32R represent the operation parts of the left and right operation switches, respectively, and depending on the type of the switch, a waveform operation knob or a push button is used. These operation parts 32L, 32R are
They are arranged in parallel relatively close to appropriate positions on the operation panel 37 and aligned in the same operating directions for retracting and raising. By arranging it in this way, the left and right operation parts 3
Of course, it is possible to operate 2L and 32R separately, but it is also possible to operate the left and right sides simultaneously with one operation, improving operability. In addition, 38 is an operation unit for adjusting the attitude of the mirror;
Reference numeral 39 denotes a left/right selection operation unit for switching the mirror for attitude adjustment, and is used when operating an attitude control mechanism (not shown) provided in the visor 2.

As is clear from the description of the embodiments above, the present invention provides a rotation detection switch having a storage side switch and an upright side switch that operate according to the rotation of the visor, and a storage visor switch that operates in conjunction with each other. By combining an operation switch with a visor switch for raising the visor, the drive motor is selectively rotated in a predetermined direction to raise and retract the visor, and the relatively simple circuit configuration makes it easy to operate. Therefore, a good visor electric device can be obtained.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of a door mirror according to an embodiment of the present invention, FIG. 2 is a wiring diagram of a control circuit,
Figure 3 is a wiring diagram of another example of the control circuit, Figure 4a,
b is a front view showing an example of the arrangement of the operation sections. 1... Stay, 2... Visor, 3... Mirror, 5... Rotating shaft, 15... Fixed gear, 17...
Drive motor, 18... Output gear, 19... Rotor, 20... Rotation detection switch, 29... Storage side switch, 30... Standing side switch, 32... Operation switch, 32L, 32R... Operation unit, 33...
... Visor switch for storage, 34... Visor switch for standing up, 33a, 34a... Normally open contact, 3
3b, 34b...Normally closed contact, 35...Battery,
37...Operation panel.

Claims (1)

[Claims] 1. A visor supporting a mirror is rotatably attached to a rotating shaft of a stay provided on the outer surface of the vehicle body, and the visor is rotated by a drive motor fixed to the visor. In this foldable mirror, it is provided near the rotating shaft between the stay and the visor, and is turned on when the visor is between the upright position and the retracted position, in response to the rotation of the visor with respect to the stay. A retractable switch that becomes
a rotation detection switch having a stand-up side switch that is turned on when the visor is between the completely retracted position and the stand-up position; and a rotation detection switch that is provided in the vehicle interior and is self-maintained by a switching operation to the normally open side. and an operation switch having a retractable visor switch and an upright visor switch that are interlocked with each other so that when the other switch is switched to the normally open side, one returns to the normally closed side, and the drive motor is rotated. Via the storage side switch of the detection switch, the normally closed side of the erecting visor switch of the operating switch, and the normally open side of the retracting visor switch, and the normally closed side of the erecting side switch of the rotation detection switch and the normally closed visor switch of the operating switch. Via the normally open side of the side and standing visor switch,
A visor electric device for folding mirrors, each of which is connected to a power source.