JP2525176Y2 - Automotive sunroof drive - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial Application Field) The present invention relates to a driving device for a sunroof for an automobile.

(Prior Art) Generally, a sunroof for an automobile has a structure in which a tilt control in which a rear end side of a lid rises from a fully-closed state and a slide control in which the lid slides rearward from a fully-closed state are obtained by controlling a driving device. Has become.

(Problem to be Solved by the Invention) As described above, the driving device for a sunroof for an automobile is capable of tilt control and slide control.
It is a general practice to provide various functions, such as control to the completion of full opening by one-touch operation, or to stop in the middle of opening, and multi-function. However, the multifunctionality is convenient, but at the same time, leads to an increase in cost. In particular, it is difficult to absorb the cost particularly in a low-grade, low-cost model.

In view of the foregoing, an object of the present invention is to provide a driving apparatus for a sunroof for an automobile, which simplifies a circuit configuration and can be controlled by a one-touch operation until fully opened and fully closed.

[Structure of the invention] (Means for solving the problem) In order to achieve the above object, the invention provides a motor circuit having a drive motor capable of normal or reverse rotation, and a motor circuit that is turned on when a specified current value flows. And a first detection switch connected to the first and second relay coils and the first relay coil, which is normally located on the second contact side, and is capable of switching from the second contact to the first contact when the lid is fully opened. A second detection switch that is connected to the second relay coil and is normally located on the fourth contact side, and is capable of switching from the fourth contact to the third contact when the lid is tilted up; A relay circuit for rotating the drive motor forward or backward when the respective relay coils are on, a tilt operation switch connected to the second contact of the first detection switch and the third contact of the second detection switch, and a first detection switch, respectively. 1st contact of switch And a slide operation switch respectively connected to the fourth contact of the second detection switch and an operation circuit for turning on the first and second relay coils by operating each switch. A resistor forming a self-holding circuit for the first and second relay coils is provided on the second and fourth contact sides of the switch and the second detection switch.

(Operation) According to the driving device for a sunroof for an automobile, the self-holding circuit operates by one-touch operation of the tilt operation switch and the slide operation switch, and the driving motor rotates forward or reverse, thereby enabling the tilt control and the slide control of the sunroof. . During this operation, if a large current flows through the drive motor due to the load resistance at the end of the control, the value of the current flowing to the self-holding circuit via each relay coil becomes equal to or less than a specified value, and each relay coil is turned off. As a result, the rotation of the drive motor stops.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings of FIGS.

In FIG. 7, reference numeral 1 denotes a lid provided in a roof opening 3 for an automobile. A seal member 4 such as a weatherstrip is mounted on the outer peripheral edge of the lid 1 to resiliently contact the roof opening edge 3a when the lid 1 is fully closed to secure a seal. It is linked to the drive motor 7 via the drive wires 5,5.

The drive motor 7 is rotatable in the forward and reverse directions, is located inside the roof panel 9, and has the motor axis X arranged along the vehicle width direction, and includes first and second transmission gear systems 11 and 12 described below. It is fixed to a flange 15 of the main body 13 by a bolt 16.

The output shaft of the drive motor 7 has a worm as shown in FIG.
A driving gear 19 serving as a worm wheel meshes with the worm 17 at right angles to the axis X.

The driving gear 19 is loosely fitted to the main shaft 21, and the main shaft 21 is
Both ends are supported slidably in the direction of the axis W with the case body 13 via both ends, and both shaft ends are exposed to the outside. Drive gear
The driven gear 25 on the driven side facing the surface 19 is integrally fixed to the main shaft 21.

The first gear 37 at the head of the first transmission gear system 11 meshes with the drive gear 25. The first gear 37 is loosely fitted to the case body 13 and the first gear shaft 39 supported at both ends and meshes with the second gear 43 fixed to the second gear shaft 41, thereby affecting the shape of the drain gutter 9a. A secure meshing state is ensured.

The second gear shaft 41 is rotatably supported by the case body 13 via upper and lower bearing members 45, 45, and one shaft end protrudes outward from the case body 13. Projected second gear shaft 41
A third gear 47 that meshes with the gear portion of the drive wires 5, 5 is fixed to the shaft end of the drive wire 5, and the drive wires 5, 5 move by forward or reverse rotation of the third gear 47, and the drive wires 5, 5 Tilt control in which the rear end side of the lid 1 is raised by the movement
It is possible to perform a slide control of sliding in the direction of FIG.

On the other hand, a sub gear 49 is integrally provided below the drive gear 25 mounted on the main shaft 21, and the sub gear 49 has a second transmission gear system.
The first first gear 51 constituting 12 is meshed. First
The gear 51 is fixed to a first gear shaft 53 having a gear portion 57 supported on both ends of the case body 13, and the gear portion 57 is engaged with a rotating body drive gear 55. The rotator driving gear 55 is formed integrally with the rotator 59, and the rotating shaft 61 of the rotator 59 is supported by the case body 13 at both ends.

Slide control in which the switch terminals S ₁ and S _{2 of} the first and second detection switches LS-1 and LS-2 contact the outer peripheral surface of the rotating body 59 which rotates in proportion to the amount of movement of the lid 1. Surface 59-A,
A switch 59-B is formed, and the switch terminals S ₁ and S ₂ are switched by the slide control surfaces 59-A and 59-B.

That is, the first switch terminal S _1, respectively switched to the second contact P _1, P _2, the switch terminal S ₂ to the third, fourth contact point P _3, P ₄
Respectively.

The first detection switch LS-1 is intended to perform sensing during the slide open from the fully closed during the slide control as shown in FIG. 8, the switch terminals S _1, the second contact from the fully closed when the slide open P ₂ from so mode changes to the first contact point P _1.

The second detection switch LS-2 is intended to perform the eighth detection when tilted up when the tilt control, as shown in FIG. (Detection at fully closed from the fully closed), the switch terminal S ₂ is first during tilt-up 4 consists contacts P ₄ to mode changes in the third contact P _3.

The first and second detection switches LS-1 and LS-2 are connected to bolts 73 through brackets 70 through through holes provided in the switch body.
Penetrates, and the screw portion of the bolt 73 is screwed into the case body 13. The mounting hole of the bracket 70 is loosely fitted to the rotating shaft 61.

FIG. 1 shows a control circuit having the first and second detection switches LS-1 and LS-2. In this control circuit, reference numeral 7 denotes a drive motor, and R1 and R2 denote first and second relay circuits LC. , Second
Are shown, respectively.

At the time of initial operation, the first relay coil R1 is turned on when a specified high current value is applied, and is turned on.
Even if the current flowing through the GL is a low current value or a holding current value, the ON state is ensured, and has a normally open relay contact R1-A and a normally closed relay contact R1-B. . One end of the relay coil R1 is a plus circuit BT as a power source side, and the other end is connected to the switch terminal S ₁ of the first detection switch LS-1, is energized by current flow specified in the relay coil R1 It turns on. As a result, one relay contact R1-A is switched from the open state to the closed state, and the other relay contact R1-B is switched from the closed state to the open state.

One end of the first relay coil R ₁ of relay contacts R1-A and R1-B is connected to the first terminal 7a of the drive motor 7 via a circuit breaker 75. The other end of the relay contact R1-A is connected to a positive circuit BT, and the other end of the relay contact R1-B is connected to a negative earth circuit G.

The circuit breaker 75 has a function of opening the motor circuit MC once and then closing the motor circuit MC again when a load exceeding the allowable range acts on the drive motor 7 for a predetermined time or more.

During the initial operation, the second relay coil R2 is turned on when a specified high current value is applied, and is turned on.
The on state is ensured even if the current flowing through the relay is a low current value or a holding current value, and has a normally open relay contact R2-A and a normally closed relay contact R2-B. One end of the relay coil R2 is a third detection switch
The contact NC of LS-3, the other end is connected to the switch terminal S ₂ of the second detection switch LS-2, a state of ON, which is energized by current flow specified in the relay coil R2. Thus, one relay contact R2-A is switched from the open state to the closed state, and the other relay contact R2-B is switched from the closed state to the open state.

The relay contacts R2-B and R2-A of the second relay coil R2 are connected to the second terminal 7b of the drive motor 7. The other end of the relay contact R2-A is a plus circuit BT, and furthermore, the relay contact R2
The other end of -B is connected to the earth circuit G, respectively.

Accordingly, the drive motor 7 changes the relay contact R1-A connected to the first terminal 7a from normally open to closed,
Is switched from normally closed to open, so that current flows from the first terminal 7a to the second terminal 7b, and R2-A connected to the second terminal 7b changes from normally open to closed, A2- By switching B from the normally closed state to the open state, a current flows from the second terminal 7b to the first terminal 7a, thereby enabling the forward or reverse rotation control of the drive motor 7.

On the other hand, the first contact point P ₁ of the first detection switch LS-1 is connected to the first switch contact SL ₁ of the slide operation switch SL constituting the operation circuit SC. The second contact P ₂ are connected respectively to the first switch contact TL ₁ of the tilt control switch TL.

The third contact point P ₃ of the second detection switch LS-2 and the second switch contact TL ₂ of the tilt control switch TL, fourth contact point P
₄ is connected respectively to the second switch contact SL ₂ of the slide operation switch SL, the operation switch TL · SL is connected to a ground circuit G.

Further, a second contact point P ₂ of the first detecting switch LS-1, second
Detecting switch LS-2 of the fourth contact P ₄ one end grounded circuit G and
, And the resistors W ₁ and W ₂ forming the self-holding circuit GL are connected to each other.

 Next, the operation will be described.

When the lid 1 is fully closed, the tilt operation switch TL and the slide operation switch SL are in the neutral position,
The switch terminals S ₁ and S ₂ of the first and second detection switches LS-1 and LS-2 are respectively located at the second and fourth contacts P ₂ and P ₄ .

Further, the current from the battery circuit BT flows through the first and second relay coils R ₁ and R ₂ via the self-holding circuits GL and GL. Is secured.

In this state, the tilt-up, when the first switch contact TL ₁ and a one-touch operation by the tilt operation switch TL in a closed, large current flows. Thereby, after the first relay coil R1 is excited, the ON state is secured by the holding current value flowing through the self-holding circuit GL.

Therefore, the drive motor 7 is connected from the first terminal 7a to the second terminal
A current flows through 7b to perform normal rotation, and a tilt-up state of the lid 1 is obtained. When tilt-up is completed, the second detection switch LS
The switch terminal S ₂ -2 switched to the third contact point P ₃ side. At the same time, to flow a load current to the motor circuit MC, the first relay coil R ₁ is a drive motor 7 turns off the self-holding circuit GL is a holding current value or less of the current is stopped.

Next, the tilting down from the state of the tilt-up, a large current flows when the touch operation to the second closing switch contacts TL ₂ by the tilt operation switch TL. This excites the second relay coil R2. Accordingly, the drive motor 7 is reversed by the current flowing from the second terminal 7b to the first terminal 7a, and the lid 1 is lowered from the tilt-up state to the fully closed state. Switch terminal S ₂ of the fully closed at the same time as the second detection switch LS-2 is returned to the fourth contact point P _4, the second
The relay coil R ₂ Since R2-A of the relay contact in a non-excited state returns to R2-B is closed back to open, the driving motor 7 is stopped.

Then, to the slide open, a large current flows when the slide operation switch SL second switch contact SL ₂ is operated to close. Thus, after the second relay coil R2 is excited, the ON state is secured by the holding current value flowing through the self-holding circuit GL. Accordingly, the drive motor 7 is reversed by the current flowing from the second terminal 7b to the first terminal 7a, and a slide open state in which the lid 1 is opened by a predetermined amount as shown in FIG. 7 is obtained. At this time, the first
Switch terminal S1 of the detection switch LS-1 is switched from the second contact point P ₂ to the first contact point P _1. At the same time since the motor circuit MC flows the load current, self-holding circuit GL second relay coil R ₂ is a drive motor 7 turned off becomes holding current value or less of the current is stopped.

Next, to fully close the slide open state,
The slide operation switch SL to a one-touch operation to the first closed switch contact SL ₁ when a large current flows. As a result, the first relay coil R1 is excited and the drive motor 7
Is normally rotated by the current flowing from the first terminal 7a to the second terminal 7b, so that the fully closed state of the lid 1 can be obtained.

The switch terminal S _{2 of} the second detection switch LS-2 at the same time when it is fully closed
It is returned to the fourth contact P _4. Also, the first relay coil R ₁
Is turned off, R1-A among the relay contacts returns to open, and R1-B returns to close, so that the drive motor 7 stops.

[Effects of the Invention] As described above, according to the driving device of the invention, the self-holding circuit employing the resistor can simplify the circuit and can perform the tilt control or the slide control by one-touch operation. .

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram of the drive device of the present invention, FIG. 2 is a schematic plan view of an automobile showing a fully closed state of a lid implementing the present invention, FIG. 3 is an enlarged plan view of a drive motor, and FIG. Is a cross-sectional view taken along the line IV-IV in FIG. 3, FIG. 5 is a cross-sectional view taken along the line VV in FIG. 3, and FIG. 6 is an explanatory diagram showing a mounting state of the slide control surface and the first and second detection switches. , FIG. 7 is a schematic plan view similar to FIG. 2 showing a slide open state, and FIG. 8 is an explanatory diagram of the operation of each switch. 1 lid 7 drive motor R ₁ first relay coil R ₂ second relay coil LS-1 first detection switch LS-2 second detection switch LC relay circuit MC motor circuit SC Operation circuit GL Self-holding circuit P ₁ First contact P ₂ Second contact P ₃ Third contact P ₄ Fourth contact

Claims (1)

(57) [Scope of request for utility model registration] 1. A motor circuit having a drive motor capable of rotating forward or reverse, and a motor circuit turned on when a specified current value flows.
1, connected to the second relay coil and the first relay coil, always located on the second contact side, the second relay coil when the lid is fully opened
It is connected to the first detection switch and the second relay coil that can be switched from the contact to the first contact, and is always located on the fourth contact side, and can be switched from the fourth contact to the third contact when the lid is tilted up. A relay circuit for rotating the drive motor forward or backward when the first and second relay coils are on, respectively, and a second contact of the first detection switch and a second contact of the second detection switch. A tilt operation switch connected to each of the three contacts; a slide operation switch connected to each of the first contact of the first detection switch and the fourth contact of the second detection switch; An operation circuit for turning on the two relay coils respectively, and a self-holding circuit for the first and second relay coils is formed on the second and fourth contact sides of the first detection switch and the second detection switch. Drive apparatus for an automobile sunroof, characterized in that a anti.