JPH0316293B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a folding door mirror in which a mirror body is assembled to a mounting base that is attached to a vehicle door so that the mirror body can be raised and lowered.

[Conventional technology]

In general, car door mirrors protrude farther to the side from the car body than fender mirrors, so when entering a garage or multi-storey parking lot, for example, the door mirrors can get in the way and make it difficult to enter smoothly.
This may damage door mirrors or equipment in garages and multi-storey parking lots, so we have introduced foldable door mirrors that can lower the mirror body from its upright position to reduce the amount of protrusion if necessary. Various types have been developed in the past.

[Problem that the invention seeks to solve]

However, with conventional devices of this type, the mirror body must be directly held and operated when it is folded down or raised, so each time the mirror body needs to be held and operated, the user must either step out of the vehicle or open the window and reach out. This poses problems, such as the need to use the device, which is cumbersome to operate, and is particularly inconvenient to handle on rainy or snowy days or during cold seasons.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the conventional mirrors and to provide a foldable door mirror whose mirror body can be raised and lowered electrically from inside the vehicle.

[Means for solving problems]

In order to achieve the above object, the present invention provides a folding door mirror in which a mirror body is assembled to a mounting base attached to a vehicle door so that the mirror body can be raised and retracted; With the button switch; raise the mirror body.
an electric drive member for retracting; a first member for detecting when the mirror body is in the upright or retracted position;
a second limit switch; a relay for raising and storing that is connected in series with the first and second limit switches and activated separately when the push button switch is operated; relay and the first and second
a drive circuit that cooperates with a limit switch to drive the electric drive member in the upright or retracted direction; the first limit switch is open when the mirror body is in the upright position, and is normally closed otherwise; The limit switch is a three-terminal type, and when the mirror body is in the retracted position, it is on the open side and is placed in series with the first limit switch and the erecting relay, and when it is not in the retracted position, it is switched to the closed side and placed in series with the retracting relay. It is characterized in that it constitutes a storage priority circuit.

[Effect]

By adopting the above-mentioned means, the present invention allows the mirror body to be raised and retracted by the driving force of the electric drive member simply by operating an automatic return type push button switch provided in the vehicle interior. .
In particular, when the mirror body is in a position other than the storage position, the mirror body is preferentially rotated toward the storage side by operating the push button switch.

〔Example〕

Embodiments of the invention shown in the drawings will be described below.

FIG. 1 shows an embodiment of the present invention, in which an automobile 1
Mounting base 3R attached to door 2R on the right side of
A mirror body 5R is rotatably assembled around the shaft 4R via a shaft 4R, and a reversible motor MR is provided on the mounting base 3R or the mirror body 5R.
Through R, the mirror body 5R can be moved between an upright position N shown by a solid line and a folded position B, which is folded toward the rear of the vehicle and stored, or a forward folded position F, which is folded toward the front of the vehicle, as shown by a chain line. They are starting to move between them. The mounting base 3R also includes a first limit switch LSRN that detects when the mirror body 5R is in the upright position N, and a second limit switch LSRN that detects when the mirror body 5R is in the backward position B.
A limit switch LSRB is provided.
In the above description, the letter R refers to the right side, and although not shown, a similar folding door mirror is also attached to the left door 2L of the automobile 1.
Although not shown in FIG. 1, there is an automatic return type push button switch (second
- Indicated by BS in Figure 3. ) is provided that can be operated from the driver's seat, and a drive circuit (see Figs. 2 and 3) that raises and lowers both the right and left mirror bodies 5R and 5L by operating this push button switch.
Indicated by DC. ) is provided. In the following embodiments, a limit switch for detecting the forward folding position F will be omitted, and a case will be described in which the upright position of the mirror body and the rearward folding, that is, the storage position are detected.

FIG. 2 shows an embodiment of the drive circuit DC, in which the push button switch BS is of an automatic return type that closes the contacts only while being pressed. The first limit switch LSRN, LSLN is mirror body 5R,
Only when 5L is in the upright position N, this is detected and the contacts are opened, and otherwise the contacts are always closed. second limit switch
LSRB and LSLB are 3 terminal type with mirror body 5R,
Only when 5L is in the rearward position, that is, in the retracted position B, this is detected and switched to the NO contact side, and the NC contact is kept closed at all other times. Reversible motors MR and ML move mirror bodies 5R and 5L from upright position N to backward position B when current flows from terminal N to terminal B, and move mirror bodies 5R and 5L when current flows from terminal B to terminal N. ,5
L is moved from a reclined position B toward an upright position N.

In FIG. 2, XRN and XLN are relays connected in series to the first limit switches LSRN and LSLN, respectively, and XRB and XLB are relays connected in series to the second limit switches LSRB and LSLB, respectively. Also, XRN ₁ ~XRN ₄ , XLN ₁ ~
XLN ₄ , XRB ₁ to XRB ₄ , XLB ₁ to XLB ₄ are relay contacts, and among these, XRN ₁ , XLN ₁ ,
XRB ₂ and XLB ₂ are b contacts (break contacts), and the others are a contacts (make contacts).

In the above device, a storage priority circuit is formed by the first and second limit switches and relays XRN and XLN. That is, as mentioned above, when the second limit switches LSRB and LSLB are switched to the NO contact side, they are arranged in series with the first limit switches LSRN and LSLN, so in this state, that is, when the mirror body is in a position other than the retracted position, the push button switch Relay XRN, XLN by operating BS
is activated to drive motors MR and ML to preferentially retract and rotate the mirror body.

First, when mirror bodies 5R and 5L are in the upright position N, when pushbutton switch BS is pressed, relays XRB and XLB are activated via NC contacts of limit switches LSRB and LSLB _{and b} contacts of relays XRN and XLN. is energized, so the a contacts XRB ₁ and XLB ₁ are closed and the push button switch BS
are self-held, while the a contacts XRB ₃ , XRB ₄ ,
XLB ₃ and XLB ₄ are closed, and current flows from terminal N to terminal B of reversible motors MR and ML, whereby mirror bodies 5R and 5L are moved toward rearward position B. When mirror bodies 5R and 5L reach backward position B, limit switches LSRB and LSLB are activated.
Switching to the NO contact side, relays XRB and XLB are demagnetized, so the reversible motors MR and ML are de-energized, and the mirror bodies 5R and 5L stop moving.
It is held in the rearward position B by suitable mechanical means. In this process, if one of the mirror bodies (for example, 5R) reaches the backward position B first, the a contact XLB ₁ , the NO contact of the limit switch LSRB, and the contact of the limit switch LSRN, which are still closed, Although the circuit is closed, the b contact XLB ₂ of relay XLB, which is still energized, is open, so relay XRN is not energized, so the reversible motor MR is prevented from reversing, and the mirror body 5R is in the backward position B. The other mirror body 5L is moved to the backward position B while being stopped. The same applies when the mirror body 5L reaches the backward position B first.

Next, move the mirror bodies 5R and 5L to the backward position B.
When the pushbutton switch BS is pressed, the NO contacts of limit switches LSRB and LSLB, the contacts of limit switches LSRN and LSLN, and the relay
Relays XRN and XLN are energized through B contacts XLB ₂ and XRB ₂ of XLB and XRB, and therefore A contacts
XRN ₂ , XLN ₂ are closed and the NO contacts of the pushbutton switch BS and limit switches LSRB, LSLB are self-held, while the a contacts XRN ₃ , XRN ₄ ,
XLN ₃ and XLN ₄ are closed, and current flows from terminal B to terminal N in reversible motors MR and ML, whereby mirror bodies 5R and 5L are moved toward upright position N. When the mirror bodies 5R and 5L reach the standing position N, the contacts of the limit switches LSRN and LSLN are opened and the relays XRN and XLN are demagnetized, so the reversible motors MR and ML are de-energized and the mirror bodies 5R and 5L do not move. It is stopped and held in the upright position N by suitable mechanical means. In this process, even if push button switch BS is still pressed when relays XRN and XLN are energized and mirror bodies 5R and 5L begin to move and the NC contacts of limit switches LSRB and LSLB are closed,
Since the b contacts XRN ₁ and XLN ₁ of the relays XRN and XLN are open, the relays XRB and XLB are not excited, so the reversible motors MR and ML are prevented from reversing, and the mirror bodies 5R and 5L are directed toward the standing position N. It can be moved without any problem.

In addition, when at least one of the mirror bodies 5R, 5L is not in the rearward position B, including when the mirror bodies 5R, 5L are manually tilted to the forward position F, pressing the pushbutton switch BS will cause
Both mirror bodies 5R and 5L are brought to the rearward position B, that is, are preferentially stored.

FIG. 3 shows a second embodiment of the drive circuit DC,
Push button switch BS, 1st limit switch
LSRN, LSLN, second LSRB, LSLB, and reversible motors MR and ML are the same as those shown in FIG.
XRB, XLB, _XRN , XLN, _{XB , XN} are relays.
~XLB ₃ , XLN ₁ ~XLN ₄ , XN ₁ ~XN ₃ , XB ₁ ~
All XB ₃ are relay contacts.

This drive circuit DC operates as follows.

First, when the mirror bodies 5R and 5L are in the upright position N, when pushbutton switch BS is pressed, the relay is activated via the NC contacts of limit switches LSRB and LSLB and the b contacts XN ₁ and XN ₂ of relay XN.
XRB and XLB are excited, so the a contact XRB ₂ ,
XRB ₃ , XLB ₂ , XLB ₃ are closed and reversible motor
Current flows from the terminal N to the terminal B in MR and ML, so that the mirror bodies 5R and 5L are moved toward the rearward position B while the pushbutton switch BS is pressed. When mirror bodies 5R and 5L reach backward position B, limit switches LSRB and LSLB are activated.
Switching to the NO contact side, relays XRB and XLB are demagnetized, so the reversible motors MR and ML are de-energized, and the mirror bodies 5R and 5L stop moving.
It is held in the rearward position B by suitable mechanical means. In this process, initially relay XRB,
When XLB is energized, A contacts XRB ₁ and XLB ₁ are closed, relay XB is energized, A contact XB ₃ is closed and self-maintained, and B contacts XB ₁ and XB ₂ are open. Limit switch LSRB,
Even if LSLB switches to NO contact side, relay XRN,
XLN is not energized, so the reversible motor MR,
ML is prevented from being reversed and has mirror bodies 5R and 5L.
is stopped at the rearward position B.

Next, move the mirror bodies 5R and 5L to the backward position B.
When the pushbutton switch BS is pressed, the NO contacts of limit switches LSRB and LSLB, the contacts of limit switches LSRN and LSLN, and the relay
Relay XRN via XB's b contacts XB ₁ and XB ₂ ,
XLN is energized, so the a contacts XRN ₁ , XLN ₁
is closed and limit switch LSRB, LSLB
While the NO contact is self-holding, the NO contact XRN ₃ ,
XRN ₄ , XLN ₃ , XLN ₄ are closed and reversible motor
Current flows from terminal B to terminal N in MR and ML, and as a result, mirror bodies 5R and 5L are moved toward the upright position N while pushbutton switch BS is pressed. When mirror bodies 5R and 5L reach the standing position N, the contacts of limit switches LSRN and LSLN are opened and relays XRN and XLN are demagnetized.
Therefore, the reversible motors MR and ML are de-energized,
The mirror bodies 5R, 5L stop moving and are held at the upright position N by appropriate mechanical means. In this process, when relays XRN and XLN are energized initially, a contacts XRN ₂ and XLN ₂ are closed, relay XN is energized, and a contact XN ₃ is closed and self-holding, while b contacts XN ₁ , Since XN ₂ is open, limit switches LSRB and LSLB are NC.
Even when switching to the contact side, the relays XRB and XLB are not excited, so the reversible motors MR and ML are prevented from reversing, and the mirror bodies 5R and 5L are moved toward the upright position N without any hindrance.

In addition, when at least one of the mirror bodies 5R and 5L is not in the rearward position B, including when the mirror bodies 5R and 5L are manually tilted to the forward position F, as long as the pushbutton switch BS is pressed, , both mirror bodies 5R and 5L are brought to the rearward position B.

In addition, in each of the above embodiments, the application is shown to be applied to a folding door mirror attached to the right door 2R and the left door 2L of the automobile 1, but the invention is not limited to this, and for example, it can be applied to the passenger side of the automobile 1. Of course, the present invention can also be applied only to the foldable door mirror attached to the (left) door 2L.

〔Effect of the invention〕

Since this invention is configured as described above, the raising and lowering of the mirror body can be electrically operated from inside the vehicle, so that, for example, the door mirror can be lowered before entering a garage or a multi-story parking lot, or after leaving the garage. When raising the door mirror, there is no need to go outside the vehicle or open the window and put your hand out each time, making it convenient to handle, especially on rainy or snowy days or during cold seasons. Moreover, since it is only necessary to provide a single operating member, an automatic return type push button switch, in the vehicle interior, it has excellent effects such as minimizing the installation space for the operating member. In particular, in the present invention, when the mirror body is in a position other than the storage position, the mirror body can be preferentially rotated toward the storage side by operating the push button switch,
The mirror body can be stored safely and reliably.

[Brief explanation of the drawing]

FIG. 1 is a plan view of essential parts showing one embodiment of the present invention, and FIGS. 2 and 3 are sequence diagrams showing different embodiments of the drive circuit. 1...Automobile, 2R...Door, 3R...Mounting base, 4R...Shaft, 5R...Mirror body, 6
R, 7R...gear, BS...push button switch,
LSRN, LSLN, LSRB, LSLB...Limit switch, MR, ML...Reversible motor, DC...Drive circuit.

Claims (1)

[Scope of Claims] 1. In a folding door mirror in which the mirror body is assembled to a mounting base attached to a vehicle door so that it can be raised and retracted, an automatic return type push button switch provided in a vehicle interior is provided. an electric drive member that raises and retracts the mirror body; first and second limit switches that detect when the mirror body is in the upright or retracted position; and in series with the first and second limit switches, respectively. a relay for raising and retracting that is connected and operates separately when the pushbutton switch is operated; The first limit switch is open when the mirror body is in the upright position and is always closed otherwise, and the second limit switch is of a three-terminal type and is a drive circuit that drives the member in the upright or retracted direction. When in the retracted position, the first
A folding door mirror characterized in that the folding door mirror is arranged in series with the limit switch and the erecting relay, and is switched to the closed side except in the retracted position to form a retractable priority circuit arranged in series with the retractable relay.