JPH05270270A - Roof opening/closing device - Google Patents

Abstract

PURPOSE:To prevent shock at full opening or full closing, improve position accuracy, improve manufacturing efficiency, and reduce power consumption, while being favorable in weight and not prolonging an operation time by delaying the rotational moving speed only at beginning and stopping of operation to open/close a roof than the rotational moving speed in the middle territory, without setting a speed reducing mechanism or complicated sensors and control in addition. CONSTITUTION:Roofs 1 are rotationally movably supported with a vehicle body B through supporting members 3, the supporting members 3 and an output arm 8 are connected together through a link member 6, the length from a rotary shaft 8a to a second connecting part 12 is formed equal to 1/2 of the rectilinear distance L connecting the position of a first connecting part 11 at roof full closing and the position at roof full opening, the rotary shaft 8a is arranged on the extending line LL of the straight line, and the link member 6 is set so that the second connecting part 12 is on the extending line LL and the length is set so as to position the member between the first connecting part 11 and the rotary shaft 8a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof rotatably supported by a vehicle body in a range from a position where the roof covers the passenger compartment to a roof and a position where the roof is stored in a storage compartment behind the passenger compartment. The present invention relates to a device for opening and closing.

[0002]

2. Description of the Related Art As a conventional roof opening / closing device, for example, one disclosed in Japanese Patent Laid-Open No. 62-120218 is known.

In this conventional apparatus, a roof is rotatably supported by a vehicle body, one end of a link member is connected to a supporting member supporting the roof, and the other end of the link member is an arm which is rotated by a motor. Are connected. Therefore,
When the motor is driven, the roof can be rotated rearward and stored in the rear of the vehicle compartment, and can be moved forward from this stored state to a position where the vehicle compartment is covered.

[0004]

However, in the above-mentioned conventional roof opening / closing device, the arm that rotates by receiving the driving force from the motor rotates from the fully closed roof to the fully open roof. Is about 90 °, and the angle formed by the arm and the link member is close to 90 ° when fully opened, which causes the following problems.

That is, in the structure in which the angle formed by the arm and the link member is close to 90 ° when fully opened, the amount of vertical movement of the link member in the vicinity of fully opened becomes large, and the displacement amount and speed of the roof are increased. Is too fast. As a result, there arises a problem that a shock is increased when the roof comes into contact with the vehicle body and a problem that it is difficult to improve the positional accuracy when the movement of the roof is stopped. That is, as described above, when the amount of displacement at the time of full opening is large, the operation error on the motor side appears in the movement of the roof as it is, so it is necessary to make the assembly accuracy of all drive transmission systems including the motor side extremely high. , Not easy to manufacture.

Further, in order to solve the above-mentioned problem, when the reduction ratio by the gear between the motor and the arm is increased, the rotation speed of the roof becomes slow not only at the time of full opening but also at the whole operation. Therefore, there is a problem that the operating time becomes too long and a weight increases by the amount of the deceleration mechanism, and if the driving speed of the motor is slowed only near the fully open and fully closed positions, the Since it is necessary to detect the drive amount and control it at any time, there arises a problem that the sensor and the control content become complicated, resulting in a large cost increase.

In addition, in the structure of the conventional device, the direction in which the angle formed by the lever and the link is 90 ° is slightly smaller than 90 ° in the initial stage of the operation from the fully opened to the closed direction where the weight of the roof is greatest. Since the structure is driven in the above manner, the torque load on the motor becomes large and the motor becomes large in the initial stage of operation from the time of full opening, so that there is a problem that weight, space, and current consumption amount are large.

The present invention has been made in view of the above problems, and the rotational speed only when starting and stopping the operation of the roof opening and closing without additionally setting the speed reducing mechanism and the complicated sensor and control. Is slower than the rotation speed of the intermediate area, which is advantageous in terms of weight and prevents the shock from being fully opened / closed, and improves the position accuracy and production efficiency while not lengthening the operation time. It is an object of the present invention to provide a roof opening / closing device capable of improving and reducing power consumption.

[0009]

To achieve the above object, in the roof opening / closing device of the present invention, the roof is placed in a predetermined storage position with the vehicle compartment completely opened from the fully closed position covering the vehicle compartment. To the fully opened position, which is rotatably supported by the vehicle body by the support member within a range of a rotation angle not exceeding 180 °,
One end of the link member is rotatably connected to the support member at the first connecting portion, and the other end of the link member is provided with an output arm that is rotated by driving the actuator at the second connecting portion. The length from the rotation center of the output arm to the second connecting portion is equal to 1/2 of the straight line distance connecting the position of the first connecting portion when the roof is fully closed and the position where the roof is fully opened. The rotation center of the output arm is disposed on the extension line of the straight line, and the link member has the second connection portion on the extension line and the rotation center of the output arm when the roof is fully closed. The length is set to be between the two.

[0010]

When the roof is moved from the fully closed position to the fully open position, the actuator is driven by rotating the output arm by 180 °. In this case, the first connecting portion (the connecting portion between the link member and the support member), the second connecting portion (the connecting portion between the link member and the output arm), and the rotation center of the output arm are output in a state of being aligned with each other. Since the arm starts rotating, the moving direction of the second connecting portion at the tip of the output arm has a large component in the direction orthogonal to the straight line. Therefore, the vertical movement amount of the support member is small and the roof rotation amount is large. Is small. Therefore, the rotation speed of the roof is slow.

Moreover, since the angle formed by the output arm and the link member with the second connecting portion as the break point is approximately 180 °, the torque load applied to the actuator is the smallest.

After that, when the output arm rotates, the component of the change of the rotation angle of the output arm in the direction of rotating the support member downwardly increases, and the rotation amount and the rotation speed of the roof increase. When the output arm rotates 90 ° from the initial state of rotation, the rotation amount and rotation speed become maximum.

Then, when the rotation angle of the output arm passes through 90 ° and approaches 180 °, the component of the rotation angle component of the output arm for rotating the support member downwardly decreases again, As a result, the amount of rotation and the rotation speed of the roof become smaller. Immediately before the rotation angle of the output arm reaches 180 °, the rotation speed of the roof becomes the minimum, and when it reaches 180 °, the roof is in the fully open position and the driving of the actuator is stopped. At this time, the first connecting portion, the second connecting portion, and the rotation center of the output arm are again aligned substantially in line.

On the other hand, when returning the roof from the fully open position to the fully closed position, the actuator is driven in the same direction as described above, and the output arm is rotated again in the same direction. Then, the second connecting portion starts moving upward, and along with that, the first connecting portion and the supporting member move upward, and the roof starts rotating toward the fully closed position. Since the output arm rotates when the first connecting portion, the second connecting portion, and the rotation center of the output arm are aligned in a substantially straight line, there are few components that move the supporting member upward in the initial stage of rotation, and the amount of rotation of the roof is small. In addition, the rotation speed is low, and the torque load that acts on the actuator at the initial stage of driving is small.

After that, the rotation angle is 90 ° after the output arm starts rotating (the rotation angle is 2 when the roof is fully closed).
(70 °), the amount of rotation and the rotation speed of the roof increase, and reach the maximum around 90 °.

The rotation angle of the output arm is 180 °.
Then, again, the first connecting portion, the second connecting portion, and the rotation center of the output arm are aligned substantially in a straight line, and the rotation amount and the rotation speed of the roof are reduced, so that the output arm moves to 1
The roof reaches the fully closed position when it has rotated 80 °, and the drive of the actuator is stopped.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

First, the configuration of the embodiment will be described. 3A, 3 </ b> B, and 3 </ b> C are side views showing an automobile to which the embodiment apparatus is applied and a roof opening / closing operation,
In the figure, 1 indicates a roof. The roof 1 includes a front roof B2 connected to the front pillar B1 on the left and right and a rear roof (not shown) connected on the left and right to a rear pillar 2a.
It is formed in a shape to be disposed between and, and is rotatably supported by the vehicle body B by the support member 3.

A storage portion 4 is formed at a position behind the seat S of the vehicle body B. The storage portion 4 is a lid 2 formed integrally with the rear pillar 2a and the rear roof.
It is formed so that it can be opened and closed. Reference numeral 5 in the figure denotes a hydraulic actuator for opening and closing the lid 2.

Therefore, in this embodiment, when the lid 2 is opened as shown in FIG. 3 (a) and the roof 1 is rotated backward, as shown in FIG. When the lid 3 is stored in the storage portion 4 and then the lid 2 is closed as shown in FIG. 3C, the roof 1 and the support member 3 are completely covered.

Next, the roof opening / closing device of the embodiment for rotating the roof 1 as described above will be explained.

FIG. 2 is a perspective view (a) and a sectional view (b) for showing a portion of the support structure of the roof 1 of the embodiment apparatus. As shown in the figure, the support member 3 has an upper portion and an intermediate portion. The portion is formed in a substantially L-shaped cross section, and the lower portion is formed in a substantially U-shaped cross section. And the support member 3
The lower end of is attached to the bracket B fixed to the vehicle body B so as to be rotatable around the pivot 3a. Further, one end of the link member 6 is rotatably connected to a connecting shaft 3b provided at a position slightly apart from the pivot 3a of the support member 3 to the upper side in the drawing. This connecting portion is referred to as a first connecting portion 11 in this specification. Further, the other end of the link member 6 is rotatably connected by a connecting shaft 3c to a tip of an output arm 8 which rotates about a rotating shaft 8a by driving a motor 7. This connecting portion is referred to as a second connecting portion 12 in this specification. Further, as shown in FIG. 2B, the output arm 8 is arranged offset to the outside of the vehicle body so as not to overlap the link member 6 and the support member 3 in the vertical direction. A regulator 9 for transmitting the rotation of the motor 7 to the rotating shaft 8a while decelerating the rotation is provided between the motor 7 and the rotating shaft 8a. Incidentally, the regulator 9 has the same structure as that used for moving the door glass up and down, for example.

Next, the relationship between the support member 3, the link member 6 and the output arm 8 will be described with reference to FIG. 1 showing the entire embodiment apparatus. The length of the output arm 8 (from the rotating shaft 8a to the second connecting portion) will be described. The length up to 12) is 1/2 the linear distance L connecting the position of the first connecting portion 11 when the roof is fully closed (shown by the solid line) and the position when the roof is fully opened (shown by the chain double-dashed line). Is formed in. The rotary shaft 8a is arranged on the straight extension line LL. Further, the link member 6 has such a length that the second connecting portion 12 is arranged on the extension line LL and between the first connecting portion 11 and the rotating shaft 8a (state shown in the drawing) when the roof is fully closed. It is set.

Further, on the vehicle body B in the vicinity of the support member 3, as shown by the solid line in the drawing, the fully closed switch 10 which is closed by the support member 3 when the roof 1 is fully closed.
a and a fully open switch 10b that is closed by the support member 3 when the roof 1 is in the fully open state as shown by the chain double-dashed line. That is, the motor 7 is controlled by the control circuit 1 based on the closing state of the switches 10a and 10b and the open / close operation switch 10e provided near the driver's seat (not shown) and having the open switch 10c and the close switch 10d.
Driving is controlled by 0.

The operation flow of the control circuit 10 will be described with reference to FIG. 4. Step 401 is a step of determining whether or not the opening switch 10c has been operated to be closed. If YES, the process proceeds to step 402, and if NO, the process proceeds to step 405. Step 402 is a step of driving the motor 7.
Step 403 is a step of determining whether or not the full-open switch 10b has been turned on. If YES, the process proceeds to step 404, and if NO, the process returns to step 402. Step 404
Is a step of stopping driving of the motor 7, and after this processing, returns to step 401. Step 405
Is a step of determining whether or not the closing switch 10d is operated to be closed. If YES, the process proceeds to step 406, and N
If O, the process returns to step 401. Step 406
Is a step of driving the motor 7. Step 4
Reference numeral 07 is a step for determining whether or not the fully closed switch 10a is turned on, and if YES, then the routine proceeds to step 404, and NO
Then, the process returns to step 406. Next, the operation of the embodiment will be described.

A) When the roof is opened When the roof 1 is moved from the fully closed position to the fully open position,
The opening switch 10c is turned on. Then, the drive of the motor 7 is started under the control of the control circuit 10 (step 401 → step 402).

The operation at this time is schematically shown in the operation explanatory view of FIG. 5, in which the link member 6 and the output arm 8 are solid lines when the roof is open and broken lines when the roof is closed. It shows with. In this figure, as shown in (a) and (b), the first connecting portion 11 (the connecting portion between the link member and the supporting member), the second connecting portion 12 (the connecting portion between the link member and the output arm), and the output arm. The output arm 8 starts rotating in the clockwise direction in the figure from the state where the rotary shaft 8a of 8 is aligned with the straight line, and the second connecting portion 12 moves from the position a in the figure to b in the figure.
Move to. Therefore, in such an initial stage of operation, the moving direction of the second connecting portion 12 at the tip of the output arm 8 has a large component in the direction orthogonal to the straight line,
The vertical movement amount of the support member 3 is small, and the rotation amount of the roof 1 is small. Therefore, the rotation speed of the roof 1 is also slow.

In addition, in the states (a) and (b), the angles θ ₁ and θ ₂ formed by the output arm 8 and the link member 6 about the second connecting portion 12 are 180 ° or close thereto. The torque load applied to the motor 7 is the smallest (see FIG. 6).

Thereafter, as the output arm 8 rotates, the second connecting portion 12 moves to c, d, and e in the figure as shown in FIGS. Among the components of the change of the rotation angle, the component in the direction of rotating the support member 3 downward is increased, the rotation amount and the rotation speed of the roof 1 are increased, and the output arm 8 moves from the initial rotation state to 90 °.
The rotation amount and rotation speed are maximized in the rotated (d) state.

When the rotation angle of the output arm 8 approaches 180 ° and the second connecting portion 12 moves f and g in the figure, as shown in FIGS. A component of the rotation angle component of the output arm 8 for rotating the support member 3 downward is reduced, whereby the rotation amount and the rotation speed of the roof 1 are reduced.

The rotation angle of the output arm 8 is 180
The rotation speed of the roof 1 becomes the lowest just before reaching 0 °, and then the roof 1 is in the fully open position in the state of FIG. The driving is stopped (step 403 → step 404). Further, at this time, the first connecting portion 11, the link member 6, the second connecting portion 12, and the rotary shaft 8a of the output arm 8 are aligned again.

B) When the roof is closed When the roof 1 is returned from the fully open position to the fully closed position, the closing switch 10d is closed. Then, the control circuit 10
The driving of the motor 7 is started by the control of (step 4
01 → step 405 → step 406).

As a result, the output arm 8 rotates in the clockwise direction as when the roof is opened, and the second connecting portion 12 starts to move from the direction g to the direction h in the figure.
The connecting portion 11 and the supporting member 3 move upward, and the roof 1
Starts to rotate toward the fully closed position, but in this case as well, the first
Rotating shaft 8 of connecting portion 11, second connecting portion 12, and output arm 8
The output arm 8 rotates in a state where a and a are aligned, and the angle θ ₃ formed by the output arm 8 and the link member 6 is a very small angle. Therefore, the support member 3 is moved upward in the initial stage of rotation. The components are small, the rotation amount and the rotation speed of the roof 1 are small, and the torque load acting on the motor 7 at the initial stage of driving is small.

After that, in the figure, (f) → (e) →
The output arm 8 rotates as shown in (d) → (c), and along with that, the second connecting portion 12 moves h → i → j → k. In this case as well, the output arm 8 The rotation amount and the rotation speed of the roof 1 increase as the rotation angle after starting to rotate approaches 90 ° (270 ° in the rotation angle from the time when the roof is fully closed), and becomes the maximum around 90 °.

Then, as shown in (b) → (a), the rotation angle of the output arm 8 approaches 180 °, and again,
When the state in which the first connecting portion 11, the second connecting portion 12, and the rotating shaft 8a of the output arm 8 are aligned in a substantially straight line is approached, the roof 1
When the output arm 8 rotates 180 ° after the rotation of the output arm 8 decreases, the roof 1 reaches the fully closed position and the driving of the motor 7 stops (step 406 → step). 407 → step 404).

The torque fluctuation characteristics from the fully closed state to the fully opened state and from the fully opened state to the fully closed state described above are shown in FIG. As shown in this figure, the driving torque becomes the minimum in the initial stage of driving from the fully closed and fully opened states, although the roof weight is large. In addition, the point shown by UP in the drawing is the roof 1
Shows the state in which the center of gravity of is located directly above the pivot 3a.

As described above, in the roof opening / closing apparatus of this embodiment, the supporting member 3, the link member 6, the output arm and the output member are controlled without performing variable control of the driving force of the reduction mechanism or the motor 7. The rotation speed of the roof 1 is set to be slow only near the fully closed position and near the fully closed position and fast at the middle position based on the simple configuration of only the size and the arrangement with respect to 8. Therefore, the effects listed below can be obtained. ..

A shock generated when the roof 1 and the vehicle body B collide can be suppressed.

It is advantageous in terms of weight and cost.

The movement from the fully open / fully closed position is smooth and the operation feel is good.

It is easy to obtain accuracy at the fully open and fully closed positions. In particular, the "variation" of the stop position on the drive mechanism side such as the motor 7 and the regulator 9 hardly appears on the stop position side of the roof, and the manufacturing efficiency can be improved.

The time required for opening and closing the roof 1 does not become extremely long. That is, the speed is reduced near the fully open position and the fully closed position, and the middle of the rotation is swiftly rotated, so that the operation time can be shortened as compared with the case where the speed is reduced over the entire operation range.

Further, in the embodiment, since the angle formed by the output arm 8 and the link member 6 is 0 or 180 ° at the start of driving from the fully open / fully closed state, the torque characteristic diagram of FIG. 6 is obtained. As shown, the torque at the beginning of driving is small, the output of the motor 7 is small,
The effect is that it consumes less power.

[0044]

As described above, in the roof opening / closing device of the present invention, when the roof is rotated, the rotation amount and the rotation speed are small near the fully closed position and near the fully opened position. , The effect of preventing a shock from occurring when the roof and the vehicle body come into contact with each other, the effect of improving the positional accuracy, and the effect of facilitating the position adjustment and improving the manufacturing efficiency. The effect that the operating time can be shortened is obtained at the same time as compared with the case where the speed is slowed over the operating range.

Further, in obtaining the above effects, the driving force and driving speed of the actuator are made variable, and a damping mechanism is added, on the basis of the dimensional relationship and arrangement of the support member, the link member and the output arm. Since it is carried out without the use, there is an advantage that it is advantageous in terms of weight and cost.

Further, from the fully closed position of the roof in the opening direction,
Also, when moving from the fully open position to the closing direction, the angle formed by the output arm and the link member is 0 ° or 18 °.
Since the torque load is close to 0 °, the load on the actuator at the time of start-up is reduced, the actuator can be downsized, and the power consumption can be reduced when the actuator is driven by electric power.

[Brief description of drawings]

FIG. 1 is an overall view showing a roof opening / closing device of the present invention.

FIG. 2 is a perspective view (a) and a cross-sectional view (b) showing the roof support structure of the embodiment apparatus.

FIG. 3 is a side view showing an opening / closing operation of a vehicle and a roof to which the embodiment apparatus is applied.

FIG. 4 is a flowchart showing an operation flow of a control circuit used in the apparatus of the embodiment.

FIG. 5 is an operation explanatory view showing an operation of a main part of the embodiment apparatus.

FIG. 6 is a torque fluctuation characteristic diagram from a fully closed state of the roof to a fully opened state and from a fully opened state of the roof to a fully closed state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 roof 3 support member 6 link member 7 motor (actuator) 8 output arm 8a rotating shaft (rotation center) 11 first connecting portion 12 second connecting portion B vehicle body LL extension line

Claims (1)

[Claims] 1. A support member in which a roof has a rotation angle that does not exceed 180 ° from a fully closed position that covers a vehicle interior to a fully open position where the vehicle interior is completely opened and placed in a predetermined storage position. Is rotatably supported by the vehicle body, and one end of the link member is rotatably connected to the support member by the first connecting portion, while the other end of the link member is rotated by the drive of an actuator. Is rotatably connected by a second connecting portion, and the length from the rotation center of the output arm to the second connecting portion connects the position of the first connecting portion when the roof is fully closed and the position where the roof is fully opened. It is formed to be equal to 1/2 of the straight line distance, the center of rotation of the output arm is arranged on the extension line of the straight line, and the link member has the second connecting portion on the extension line when the roof is fully closed. 1 Placed between the connecting part and the center of rotation of the output arm Roof opening and closing device, characterized in that it is set to a length that.