JPS62101528A - Pivoting device of opening and closing device for automobile - Google Patents

Abstract

PURPOSE:To maintain approximately constant the balance property over the pivotable range for smoothing the opening and closing when an opening and closing roof is opened and closed, by using a balance mechanism for changing the action point of tension balancing with the gravity of said roof according to the opening of said roof. CONSTITUTION:An end of a balance spring 25 is mounted on a base 25a incorporated pivotably adjustably in the lower portion of a base plate 20 mounted on a car body. And the other end is connected to a slide pin 25d in a slot 24e of an amplifying lever 24f through a reversing pulley 25c by a connecting wire. Further, the front end of an amplifying lever 24f is slided along a horizontal guide member 24a and the rear end is interlocked with the opening and closing of an opening and closing roof. Thus, the balance spring 25 is displaced according to the opening J0-J8 of said roof so that the balance property between the tension and gravity of said roof is maintained approximately constant over the pivotable range of said roof to smooth the opening and closing of said roof.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a rotation device for an opening/closing roof for a motor vehicle.

Some conventional automobiles have a retractable roof attached to a part of the vehicle body via a hinge, so that the retractable roof can be opened to create a so-called convertible car. .

Problems to be Solved by the Invention However, when a retractable roof is attached to an opening in the vehicle body via a hinge so that it can be opened and closed, and a balancer mechanism is attached to this retractable roof, the weight of the retractable roof acting on the balancer mechanism is affected by the degree of opening. It will change accordingly.

SUMMARY OF THE INVENTION Accordingly, the present invention provides a rotating device for a retractable roof for an automobile, which can set a substantially constant balance characteristic over the range of opening and closing of the retractable roof.

Means for Solving the Problems In the present invention, the opening/closing roof is attached to a vehicle body opening formed in the vehicle body roof portion through a hinge and is moved to open and close, and one end is attached to the vehicle body side. A balancing spring is attached to the other end of the balancing spring to apply tension to the opening/closing roof to balance the gravity of the opening/closing roof. The balancer mechanism includes a guide section that moves and guides the tension application point of the balancing spring to displace it.

Operation When the opening/closing roof is opened/closed by the rotation device with the hinge as the rotation center, the balancer mechanism sets a substantially constant balance characteristic over the rotation range of the opening/closing roof.

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

In Figs. 1 to 8, A indicates the body of a three-box type vehicle, and the body consists of a trunk opening B and a roof opening extending from the trunk opening B to the middle part of the roof C of the vehicle body in the longitudinal direction. It has an opening E. F is a rear deck that is assembled to the front half of the trunk opening B so that it can be opened and closed via a tilt/slide device G, and H is assembled to the rear half of the trunk opening B so that it can be opened and closed via a hinge (not shown). This is the trunk lid. The vehicle body roof section C is formed separately into a front half section (2) and a rear half section J, and the roof front half section I is integrally assembled to a side section of the vehicle body via a front pillar K. The rear half part J of the roof has a pair of right and left roof pillar parts M integrally extending downward from the rear edge side part, and a rear waist part N is integrally horizontally suspended over the lower ends of the left and right pair of roof pillar parts M. The second half J and a pair of left and right nori capillas part M
A rear window glass P is tightly fitted to a rear window O surrounded by a rear waist part N and a rear waist part N, and the lower parts of both sides of the rear waist part N are separated from the sides of a trunk opening B in the side part of the vehicle body. It is pivotally attached to the waist portion of the vehicle body via a pair of left and right hinges S consisting of a bearing Q and a pivot R that is detachably fitted to the bearing Q, and is further assembled to the roof opening via a rotation device T so that it can be opened and closed. It consists of an attached retractable roof. U is a first sensor that detects the fully open position of the rear deck F, ■ a second sensor that detects the fully closed position of the rear deck F, W is a third sensor that detects the fully open position of the retractable roof J, and X is a sensor that detects the fully open position of the retractable roof J. This is the fourth sensor that detects the fully closed position. Based on these detection signals, when the operation switch Y located around the driver's seat is turned on to the roof open side or the roof closed side, the rear deck F is first turned on. After opening from the fully closed position indicated by the solid line in Fig. 2 to the fully open position indicated by the imaginary line and stopping at the fully open position, the opening/closing roof J is turned on by turning on either the roof oven or the roof close of the operation switch Y. Accordingly, the rear deck F is moved to open from the full open position shown by the solid line to the full open position shown by the imaginary line shown in FIG. 2, or to close from the full open position to the fully closed position, and then to close the rear deck F. Specifically, the opening/closing control of the rear deck F and the opening/closing roof J is as follows:
As shown in the flowchart in Figure S, when the operation switch Y located around the driver's seat is turned on, the tilt/slide device G is driven in section ■, and the rear deck F is moved to the fully closed position shown by the solid line in Figure 2. It opens from to the fully open position indicated by the imaginary line, and determines whether the first sensor U is on or off in section ■. If the first sensor U is off, it continues the processing in section ■, and turns the first sensor U on. In this case, the first sensor U
The drive of the tilt/slide device G is stopped by the detection signal of
Determine whether the on operation is for roof open or roof close, and if the roof is open, section ■
The rotating device T is driven to open the opening/closing roof J from the fully closed position shown by the solid line to the fully open position shown by the imaginary line shown in FIG. If the third sensor W is off, the processing in section (2) is continued; if the third sensor W is on, the drive of the rotation device T is stopped by the detection signal of the third sensor W, and the tilting is performed in section (2). - Drive the slide device G in the opposite direction to close the rear deck F from the fully open position to the fully closed position, determine whether the second sensor V is on or off in section ■, and if the second sensor V is off, continues processing section ■, and the second
When the senna V is on, stopping the backward drive of the tilt/slide device G based on the detection signal of the second sensor V;
After completing the series of operations by operating the roof opening operation switch Y, the opening/closing roof J is stored in the front part of the trunk room covered with the rear deck F that smoothly extends in front of the trunk lid H, and the roof is opened. On the other hand, if the judgment in section (2) is to close the roof, section (2) drives the rotating device T in the opposite direction to close the opening/closing roof J from the fully open position. Then, section ■ determines whether the fourth sensor X is on or off, and if the fourth sensor stops the reverse direction drive of the rotation device T, continues the processing of section (2) and the judgment of section (2), closes the rear deck F, completes the series of operations, and moves the opening/closing roof J to the front half of the vehicle body roof. The rear deck F smoothly connects to the rear of part (3) to close the roof opening, and the rear deck F smoothly connects to the rear of the closed roof J and the front of the trunk lid H to close the trunk opening B. It is configured to close the front half of the

Further, the tilt/slide device G has a base plate 1.
A pair of left and right vehicle body side slide rails 2 fixed on both sides of the base plate l, and a pair of left and right drive shoe mechanisms assembled to be able to slide and engage with the left and right pair of vehicle body side slide rails 2, respectively. 3, a pair of left and right driven shoe mechanisms 4 assembled so as to be able to slide and engage with the pair of left and right vehicle body side slide rails 2, the pair of left and right drive shoe mechanisms 3, and the pair of left and right driven shoe mechanisms 4. a pair of left and right engaging/disengaging mechanisms 5 connecting the left and right driven shoe mechanisms 4, a pair of left and right rear tilt channels 6 that move up and down in conjunction with the left and right pair of driven shoe mechanisms 4, and a pair of left and right rear tilt channels 6.
a pair of left and right rear tilt levers 7 attached to each, a pair of left and right rear regulating mechanisms 8 provided over the pair of left and right driven shoe mechanisms 4 and rear tilt channels 6, respectively;
A pair of left and right front tilt brackets 9 attached to both sides of the rear deck F, a pair of left and right deck side slide channels 10 attached to the rear of the front tilt brackets 9 on both sides of the rear deck F, and a substantially central portion of the base plate I. It includes a motor 11 fixed on the top, and a pair of left and right power transmission mechanisms 12 that transmit the power of the motor 11 to the pair of left and right drive shoe mechanisms 3, respectively.

On the other hand, the rotating device T includes a base plate 20 attached to the side of the vehicle body, and a guide attached to the base plate 20 to guide the opening/closing movement of the retractable roof J and prevent the retractable roof J from swinging sideways. The motor 22 is connected to the channel 21, the motor 22 attached to the base plate 20, and the reduction gear part assembled on the output side of the motor 22.
Power transmission mechanism 23 that transmits the opening/closing power to the opening/closing roof J
, an amplifying mechanism 24 that amplifies the opening/closing stroke amount of the power transmission mechanism 23, and a balancer mechanism 25 that balances the weight of the opening/closing roof J during opening/closing.

The base plate 20 is formed in a panel shape to be attached to a side portion of the vehicle body, and has a bearing Q mounting portion for a hinge S of a retractable roof J extending from the front upper part of the base plate 20.

During the rotation of the hinge S, the guide channel 21 is formed into a guide groove 1' with a cross section shaped like an arc centered on the center.
1a, and upper, middle, and lower brackets 21b.

21c and 21d are fixed and attached to the base plate 20 with screws 26. A stopper member 21e for preventing slippage is fixed to the lower end of the guide groove 21a.

The power transmission mechanism 23 includes a wire member 23a that is connected to a reduction gear portion of a motor 22 fixed to the lower part of the base plate 20 and moves forward and backward in a straight line according to the rotation of the output gear of the reduction gear portion, and a bearing Q of the base plate 20. It slides into and engages with an arc-shaped guide member 23b fixed to a portion between the arrangement part and the guide channel 21 arrangement part, and a guide groove 23c having a substantially C-shaped cross section formed in this guide member 23b. The wire member 23 includes a guided member 23d and a wire guide tube 23e that guides the wire member 23a.
a from the wire guide tube 23e to the guide groove 2.
3c to the guided member 23d.

The amplification mechanism 24 includes a horizontal guide member 24a extending in the front-rear direction at the rear upper part of the base plate 20, and a guide groove 24h having a letter-shaped cross section formed in the horizontal guide member 24a.
At the same time, the carriage roller 24c protruding from the rear part is brought into contact and engaged, and the front part is rotatably attached to the front support shaft 24e of the bracket 24d fixed to the side part of the opening/closing roof J to open/close the opening/closing roof J. An amplification lever 24f that constitutes an operating lever is provided.

A guided member 23d of the power transmission mechanism 23 is rotatably mounted near the front of the intermediate portion of the amplification lever 24f via a bearing hole 24g.

The balancer mechanism 25 includes a base part 25a attached to the lower part of the base plate 20 so as to be rotatably adjustable, and one end of which is attached to the tip of the base part 25a to apply tension to balance the gravity of the retractable roof J to the retractable roof J. A balancing spring 25b applied to J, a slide pin 25d as a sliding member attached to the other end of the Lansinge spring 25b via a connecting wire 25f, and a sliding pin provided on the opening/closing lever (amplifying lever 24f). The pin 25d is provided with an elongated hole 25e that constitutes a guide portion that slides and guides the pin 25d according to the degree of opening of the opening/closing roof to displace the tension application point of the balancing spring 25b.One end of the connecting wire 25f is connected to the balancing spring 25b. The other end is connected to the reversing pulley 25c attached to the part between the guide member 23b and horizontal guide member 24a of the base plate 20, and the other end is connected to the slide pin 25b. This slide pin 25d is connected to a long hole 25e formed between the bearing hole 24g of the amplification lever 24f and the carriage roller 24c.
sliding contact and engagement. A roller 24h protruding from the rear of the bracket 24d of the retractable roof J is fitted into the guide groove 21a of the guide channel 21 so as to be able to slide into and engage with the guide groove 21a.

According to the above embodiment structure, when the operation switch Y is turned on to the roof oven side or to the roof close side, the rear deck F first opens and stops at its fully open position, and then the opening/closing roof J is turned on by the operation switch Y. When either the roof oven or roof close switch is turned on, the roof oven moves from the fully closed position to the fully open position, or closes from the fully open position to the fully closed position, and then the rear deck F moves to close. However, in the rotating device T of the opening/closing roof J, the wire member 23a moves backward due to the forward rotation of the motor 11, and as the wire member 23a moves backward, the front part of the amplifying lever 24f moves toward the horizontal guide member 24a. The carriage roller 24c, which is active along Ratio CQ, /Q, of distance e from roller 24c to guided member 23e and distance 12t from carriage roller 24c to front support shaft 24e:
The opening/closing roof J is opened with the hinge S as the center of rotation while receiving the amount of rotation amplified by the required ratio) and the balancing action by the balancer mechanism 24, and the opening/closing roof J is stored in the front part of the trunk room as shown in FIG. 4(B). be done. At this time, the slide pin 25d is inserted into the elongated hole 2 according to the opening degree of the retractable roof J.
Slide 5e. That is, FIG. 6 shows the amplification lever 24f, elongated hole 24e, and slide pin 25d with imaginary lines when the door of the retractable roof J is in the fully closed state, and the amplification lever 24f, the elongated hole 24e, and the slide when the retractable roof J is in the fully open state. pin 25d
is shown by a solid line, and the opening degree from the fully closed door to the fully open door of the retractable roof J is divided into 8 equal parts, and each opening position is marked with a symbol J from the fully closed door to the fully open door. -J8, the positions of the slide pins 25d for each opening/closing roof J opening position are designated with symbols 25d, ~25d, the positions of the elongated holes 24e are designated with symbols 24eo ~ 24e8, and 25b to 25b8 are attached to the tip displacement points of the balancing spring 25b. Moreover, FIG. 7 shows the balance characteristics of the balancer mechanism 25, in which the horizontal axis shows the opening degree of the retractable roof J, the vertical axis shows the moment and tension, and the characteristic curve t
represents the self-weight moment of the opening/closing roof J around the hinge, the characteristic curve g represents the tension generated by the balancing spring 25d, and the characteristic curve t-g represents the opening/closing moment of the opening/closing roof J. From FIG. 6 and FIG. 7, the balancing action by the balancer mechanism 25 will be clear, without needing a detailed explanation.

Effects of the Invention As described above, according to the present invention, it is possible to set a substantially constant balance characteristic over the rotation range of the opening/closing roof using the balancer mechanism, so that the opening/closing roof can be moved with a smaller driving force without sudden changes in load. It has the practical effect of being able to open and close smoothly.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a side view of the embodiment, and Fig. 3 is an open rear deck of the embodiment.
Rear perspective view showing the closed state of the retractable roof, Figure 4 (A)
, (B) is a side view of the rotating device, (A) shows the retractable roof in a closed state, (B) shows the retractable roof in an open state, and Fig. 5 shows the rotary device disassembled. A perspective view shown as
FIG. 6 is an explanatory diagram of the operation of the present invention, FIG. 7 is a characteristic diagram of the balancer mechanism, and FIG. 8 is a flowchart of the same embodiment. C... Vehicle roof part, D... Roof opening, E...
・Vehicle body opening, J...opening/closing roof, S...hinge,
T... Rotation device, 24f... Amplification lever (operating lever), 25... Balancer mechanism, 25b... Balancing spring, 25e... Elongated hole (guide portion), 25
d...Slide pin. Convex roof opening □ Fig. 8

Claims (1)

[Claims] A balancing spring that opens and closes the retractable roof attached via a hinge to an opening formed in the vehicle body roof, and has one end attached to the vehicle body side and applies tension to the retractable roof to balance the gravity of the retractable roof. a slide member attached to the other end of the balancing spring; and a guide provided on the opening/closing roof operating lever to slide and guide the sliding member in accordance with the opening degree of the opening/closing roof to displace the tension application point of the balancing spring. A rotation device for an opening/closing roof of an automobile, characterized in that it is equipped with a balancer mechanism consisting of a portion and a balancer mechanism.