JPH03204336A - Controller for opening and closing of sunroof - Google Patents

Abstract

PURPOSE:To reduce the longitudinal size of a cam mechanism and prevent generation of a step between weather strips by providing the cam mechanism in such a manner as being vertically movable between the closing position and the tilt-up and tilt-down positions of a panel in association with a slider provided on a guide rail. CONSTITUTION:In order for a panel 13 for closing an opening 11 to tilt down from its tilt-up position B, a motor is rotated in normal direction by a controlling means and a slider 16 is allowed to slide along a guide rail 12. A cam mechanism 17 is actuated in such a manner as being vertically movable in association with movement of the slider 16 in the longitudinal direction so that the panel 13 is tilted down. Then the panel 13 is passed through a closing position A and is temporarily lowered to a position D below and near the position A and rotates the motor in reverse direction and controls the motor so as to stop at the closing position A. The panel 13 is thus moved vertically in association with the slider 16 and so the size of the cam mechanism 17 in the longitudinal direction can be reduced and also generation of a step between weather strips during closing is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a sunroof opening/closing control device for a vehicle such as an automobile.

(Prior art) For sunroofs of vehicles such as automobiles, a slider is moved back and forth along a guide rail by forward and reverse rotation of a motor, and in conjunction with the back and forth movement of the slider, a cam mechanism is used to move the panel into the opening of the roof. Some devices are designed to move up and down between a closed position and a tilt-up position and a tilt-down position above and below the closed position.

In this type of sunroof, when the panel 1 is tilted down from the tilt-up position to the closed position to close the opening 3 of the roof 2, the weather strip 4 on the outer periphery of the panel 1 is removed from the roof as shown in FIG. Due to the frictional resistance between the two peripheral edges, the weather strip 4 may not be fully fitted into the opening 3, and the weather strip 4 may protrude above the roof 2 and the panel 1, creating a step.

Therefore, as a measure to prevent the occurrence of such a level difference due to the weather strip 4, an improvement was made to the cam mechanism so that when the opening 3 is closed, the panel 1 is passed below the closed position. After that, raise panel 1 and open opening 2.
JP-A-59-20293 is designed to fit the
This is disclosed in Publication No. 4, etc.

(Problem to be solved by the invention) However, in the conventional device, the cam groove formed in the cam plate of the cam mechanism is of a two-stage type, so the cam plate becomes long in the front and rear direction, which creates an extra space in the front and rear direction. It was necessary to secure it.

SUMMARY OF THE INVENTION In view of these conventional problems, an object of the present invention is to reduce the dimension of the cam mechanism in the front-rear direction so as to prevent the occurrence of a step difference in the weather strip when the door is closed.

(Means for Solving the Problems) The present invention includes a panel 13 that has a weather strip 14 on its outer periphery and that opens and closes an opening 11 of a roof 10, and a motor 2.
The slider 16 is movable back and forth along the guide rail 12 by forward and reverse rotation of the slider 16, and in conjunction with the back and forth movement of the slider 16, there is a closed position A that closes the opening 11, and a tilt up position iB and a tilt down position above and below the slider 16. Panel 1 between position C
3, when the panel 13 is closed from the tilt-up position iB, the panel 13 descends to a passing position near the bottom of the closed position A, and then rises to the closed position A. A control means 50 is provided for controlling the motor 20 in forward and reverse directions so as to rotate the motor 20 in forward and reverse directions.

(Function) When tilting down the panel 13 from the tilt-up position B to close the opening 11, the control means 50 first rotates the motor 20 in the normal direction. Then, the slider 16 slides along the guide rail 12 and tilts down the panel 13 via the cam mechanism 17. At this time, the panel 13 passes through the closed position iA and descends to the passing position iD below it. When the passage position is reached, the control means 50 causes the motor 20 to reversely rotate, and the slider 16 slides in the opposite direction, so that the panel 13 rises. Panel 13 is in closed position A
When the motor 20 rises to this point, the motor 20 stops.

(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In Figures 4 and 5, 10 is the roof of the car, 11
is an opening 11 formed in the roof 10, and 12 is an opening 11 formed in the roof 10.
These are guide rails provided under the roof 10 on both left and right sides of the roof 10. A panel 13 opens and closes the opening 11, and has a weather strip 14 on its outer periphery. The front part of the panel 13 is supported by a shoe 15 that is slidable back and forth along the guide rail 12, and the rear part is supported by a slider 16 that is slidable along the guide rail 12, and a cam mechanism 17 that is interlocked with the slider 16.
Supported through. Each slider 16 is operatively connected to a motor 20 via a drive cable 18 and a gear 19, and is configured to move back and forth along the guide rail 12 by forward and reverse rotation of the motor 20.

The cam mechanism 17 is for moving the rear side of the panel 13 up and down to the closed position ifA, the tilt-up position B, and the tilt-down position C in conjunction with the back-and-forth movement of the slider 16, and also to move it back and forth in the tilt-down state. . As shown in FIG. 6, the cam mechanism 17 includes a cam plate 22 attached to the panel 13 via a bracket 21, and a tilt link 2 pivoted to the slider 16 via a guide shaft 23.
4 are provided.

The tilt link 24 is provided with a cam pin 25 at its tip, and is also formed with a cam groove 28 consisting of a circular arc portion 26 and a linear open portion 27. A fixed racket 30 is attached to the rail 12 side. A cam groove 31 is formed in the cam plate 22, with which the cam pin 25 of the tilt link 24 engages. Note that the guide rail 1 is attached to the bracket 21.
A retaining portion 33 is provided that detachably engages with a stopper 32 provided on the bracket 30 of the two examples.

FIG. 3 shows a control circuit for the motor 20, in which a microcomputer equipped with a CPU 34 is used.

The CPU 34 includes an input circuit 35, a main switch 36, a door switch 37, and a chill door switch 38.
, a tilt-down switch 39, an open switch 40, and a close switch 41 are connected, a cam switch 43, 44, and a photo sensor 45 are connected via an input circuit 42, and a motor 20 is further connected via a drive circuit 46. There is. Switches 38 to 4I tilt up the panel 13;
This is for giving respective commands to the motor 20 during tilt-down, opening and closing. The cam switches 43 and 44 are provided on the fixed side so as to be operated by a cam plate 47 that is linked to the motor 20. The cam switch 43 is in an on state when the panel 13 is tilted down, and is turned off when the panel 13 is lowered to the closed position A. Further, as shown in FIG. 5, the cam switch 44 is turned on when the panel 13 descends to a passing position near the lower part of the closed position A, and is turned off when the panel 13 rises from this passing position iD to the closed position A. It is designed to give a stop command to the The photo sensor 45 is for generating pulses synchronized with the rotation of the motor 20, and the light emitting diode 4
A rotating disk 49 is provided on the fixed side in combination with the motor 20, and a rotating disk 49 that intermittently blocks light in synchronization with the rotation of the motor 20 is disposed between the two.

A control means 50 for tilt-down is connected to the drive circuit 46 of the motor 20 . As shown in FIG. 1, this control means 50 includes a tilt-down switch 39 that gives a normal rotation command to the motor 20, and a tilt-down switch 39 that controls when the panel 13 is lowered from the tilt-up position B to a passing position near the bottom of the closed position A. and a cam switch for detecting the closed position that detects that the panel 13 has risen from the passing position 1D to the closed position A and gives a stop command to the motor 20. 44.

As shown in FIG. 2, the passing position detection section 52 includes a counter section 53 that counts pulses from the photosensor 45 from the time when the cam switch 43 detects passage of the closed position A while the panel 13 is lowering. Setting section 5 for setting the number of pulses during which the panel 13 descends from the closed position A to the passing position
4, and a comparison section 55 that compares the set value and the count value and issues a reverse rotation command when the two match. Note that these are processed by a program in the CPU 34. 56 in FIG. 3 is a power supply circuit.

Next, the operation will be explained. Tilt up panel 13 IB
When it is set to 24, as shown in Figure 7,
The cam pin 25 engages with the front end of the cam groove 31 of the cam plate 22, and the fixed cam pin 29 is located near the rear end of the circular arc portion 26 of the cam groove 28 of the tilt link 24.
4 stands up and pushes up the rear end of the panel 13.

When tilting down the panel 13 from this tilt-up position B to close the opening 11, the tilt-down switch 39 is first turned on. Then, as shown in FIG. 8(I), a normal rotation command is input to the motor 20, and the motor 20 rotates in the normal direction, so that the slider 16 is moved backward (
Move to arrow a). When the slider 16 moves backward, since the cam pin 29 that engages with the arc portion 26 of the cam groove 28 is fixed, the tilt link 24 moves downward (b
direction) to tilt down the rear side of the panel 13 via the cam pin 25, cam plate 22, etc. Then, when the cam pin 29 reaches the open part 27 of the cam groove 28 and the tilt link 24 becomes horizontal, the engaging part 33 of the bracket 21 comes into contact with the stopper 32 and is regulated. The panel 13 slides in the cam groove 31 of the cam plate 22, and due to the cam action of the cam pin 25 and the cam groove 31, the panel 13 goes beyond the closed position A and tilts down downward (see @).

On the other hand, when the motor 20 rotates forward and the panel 13 descends to the closed position iA, the cam switch 43 is switched from on to off, the pulse from the photosensor 45 enters the counter section 53, and the counter section 53 receives the pulse. Count. When the panel 13 reaches the passing position, the count value of the counter section 53 matches the set value, so the comparison section 5
5 outputs a reverse rotation command to reverse the motor 20. Therefore, the slider 16 moves forward (in the direction of arrow A), and the cam pin 25 of the tilt link 24 slides forward in the cam groove 31, so that the panel 13 is tilted backward from the passing position due to this cam action. (See Figure 8 (1) and ■).

The cam switch 44 is turned on when the panel 13 is tilted down to the passing position. Then, when the panel 13 rises to the closed position A, the cam switch 44 is switched from on to off, and the motor 20 is stopped.

Therefore, the panel 13 stops at the closed position A at the same height as the roof 10, and the weather strip 14, after the panel 13 once lowers to the passing position, rises to the closed position A and stops. As shown in FIG. 6, there is no need to protrude upward and create a step unlike in the conventional case.

In addition, when opening from the closed position A, if the open switch 40 is pressed, the motor 20 rotates forward and the slider 16 moves backward, so the panel 13 is moved to the tilt-down position C by the cam action of the cam bin 25 and the cam groove 31. descend to. Then, since the retaining portion 33 is released downward from the stopper 32, the panel 13 slides rearward in conjunction with the rearward movement of the slider 16, opening the opening 11.

In the embodiment, the passing position detection section 52 uses a pulse counting method, and the detection of the closed position is performed using the cam switch 44, but the present invention is not limited to this. For example, the former may be a one-timer type, or both may be configured with a cam switch or a proximity switch. Furthermore, a pulse count method and a cam switch may be used together.

(Effect of the invention) According to the invention, the panel 13 from the tilt-up position B
When the panel 13 is closed, the control means 50 is provided to control the motor 20 in forward and reverse rotation so that the panel 13 descends to a passing position near the lower part of the closed position 7A and then rises to the closed position A. There is no need to lengthen the cam groove of the cam mechanism 17 in the front and back to create a two-stage structure. Therefore, the dimension of the cam mechanism 17 in the front and back direction can be reduced, and the occurrence of a step in the weather strip 14 when closed can be prevented. .

[Brief explanation of drawings]

1 to 8 show an embodiment of the present invention, FIGS. 1 and 2 are block diagrams of control means, etc., FIG. 3 is an electric circuit diagram, and FIG. 4 is a schematic plan view of the sunroof. FIG. 5 is a schematic sectional view of the same, FIG. 6 is a side sectional view of the cam mechanism, FIG. 7 is a side sectional view when tilted up, and FIG. 8 is an explanatory diagram of the operation. FIG. 9 is a sectional view of the weather strip section. DESCRIPTION OF SYMBOLS 10... Roof, 11... Opening, 12... Guide rail, 131 2... Panel, 14... Weather strip, 16...
...Slider, 17...Cam mechanism, 20...Motor, 5o...Control means, A...Closed position, B...Tilt up position, C...Tilt down position, D... - Passing position. Size (: 9,... JP-A-3 204336 (5) JP-A-3 204336 (6)

Claims (1)

[Claims] (1) A panel (13) that has a weather strip (14) on its outer periphery and opens and closes the opening (11) of the roof (10)
The guide rail (12) is rotated by the forward and reverse rotation of the motor (20).
), a closed position (A) that closes the opening (11) in conjunction with the back and forth movement of the slider (16), and a tilt-up position (
Panel (13) between B) and tilt-down position (C)
In a sunroof equipped with a cam mechanism (17) that moves the panel (13) up and down from the tilt-up position (B),
control means for controlling the motor (20) in forward and reverse rotation so that when the panel (13) is closed, the panel (13) descends to a passing position (D) near the lower part of the closed position (A) and then rises to the closed position (A). (50) A sunroof opening/closing control device, characterized in that it is provided with (50).