JPH116236A - Position detector for movable roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect the accurate position of a movable roof to which as many disturbance factors making smooth travel harder as possible are prevented to apply, from the movable roof and a main device, and rotating an encoder constantly during movement of the movable roof. SOLUTION: A position detecting device 10 with a position-detecting encoder E is mounted, by way of an oscillating joint 20 that uses a support pin 23, on the frame 1 of a movable roof and adjacent to a main device having a drive wheel and driven wheel which cause movement of the frame 1 along a rail R. As two rolling wheels 12, 13 are pushed by an activating means 25, they are rolled along the rail R and are interconnected by the timing belt 31 and toothed wheel 32 of a rotary force transmitting means 30, so that the encoder E is driven and rotated by the rolling wheels 12, 13 via another rotary force transmitting means 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a movable roof position detecting device that detects a moving position of a movable roof that constitutes an openable roof of a stadium or a dome that can hold various events.

[0002]

2. Description of the Related Art Conventionally, as a method for detecting a moving position of a movable roof, an encoder is mounted on a main unit which moves along a rail while supporting a frame of the movable roof, and a driving wheel or a driven wheel of the main unit is rotated. A method has been adopted in which an encoder is rotationally driven through a rotational force transmitting means such as a gear.

The main unit is mounted on the base of a frame that supports the movable roof along the rail direction, and the movable unit moves to move the movable roof, and the movable roof is opened and closed.

However, due to thermal expansion or thermal contraction of the roof due to temperature difference between day and night, or due to external force such as strong wind or an error between the rail and the running line of the main device, the connecting portion of the main device is twisted or pushed or pulled. Various forces such as lifting act to make smooth running difficult. In particular, when the main wheels drive wheels and driven wheels have a large wheel diameter and cause a slip, the error between the encoder detection position and the actual roof position also increases,
The rotation of the encoder was not smoothly transmitted to the movement of the roof, and it was difficult to accurately detect the position.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned prior art, and is intended to minimize disturbances from the movable roof and the main unit that make smooth running difficult. It is an object of the present invention to provide a movable roof position detecting device that always rotates an encoder when the movable roof moves, and detects an accurate moving position.

[0006]

According to a first aspect of the present invention, there is provided a movable roof position detecting apparatus including a movable roof frame, and at least one of a driving wheel and a driven wheel. A position detection device for a movable roof having a position detection encoder mounted on one of a main device and a main device for moving the frame along a rail, and a movement direction and a movement direction through a swing joint using a support pin. Being mounted so as to be pivotable in the same direction, and being separate from the driving wheel and the driven wheel, rolling along the rail and being connected to each other by a rotational force transmitting means. Further, at least two rolling wheels are provided, and the rolling wheels drive the encoder via another rotating force transmitting means.

According to a second aspect of the present invention, there is provided a movable roof position detecting device, wherein the rolling wheel is pushed toward the rail by a biasing means. Such a movable roof position detection device is characterized in that the rolling wheels are formed of roller wheels,
The position detection device for a movable roof according to the invention according to claim 4,
The rotation force transmitting means is constituted by a timing belt and a toothed wheel.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A movable roof position detecting device according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is an elevation view showing a basic configuration example of a movable roof position detecting device. FIG. 2 is an elevational view showing a characteristic operation state of the position detecting device of FIG. 1, in which one of the two rolling wheels, which is closer to the encoder, floats from the rail, and the other rolling wheel contacts the rail. It shows the state where it is. FIG. 3 is a perspective view partially showing a state where the position detection device of FIG. 1 is mounted on a frame of a movable parallel movable roof, and FIG. 4 is a plan view of FIG. FIG. 5 is a plan view showing a state where the position detecting device of FIG. 1 is mounted on a frame of a swiveling fan-shaped movable roof.

1 and 3, a movable roof position detecting apparatus 10 according to an embodiment of the present invention is provided with a position detecting encoder E on a base 11 for holding events such as baseball and music events. A pair of front and rear main units 5 and 5 having a driving wheel 2 and a driven wheel 3 for moving a frame 1 supporting a movable roof 1A constituting a retractable roof of a stadium or a dome along a rail R. , On the frame 1. The moving position of movable roof 1A is encoder E
Is detected from the output. The main device 5 is a bogie provided with a drive wheel 2 and a driven wheel 3, and is mounted on a base of the frame 1 in a front-rear direction along a rail R direction.

The above-described mounting of the position detecting device 10 is pivotally supported in the same direction as the moving direction through the swing joint 20 by the support pin 23. In addition, the position detecting device 1
Numeral 0 denotes a two-wheel type position detecting device having two front and rear rolling wheels 12, 13 which roll on the base 11 along the rail R and are mutually connected by the rotational force transmitting means 30. is there. Further, the position detecting device 10 is provided with another rotating force transmitting means 35.
And the encoder E is rotationally driven by the two rolling wheels 12 and 13 via the rotational force transmitting means 35. The rolling wheels 12 and 13 of the position detecting device 10 are different from the driving wheels 2 and the driven wheels 3 of the main device 5.

Therefore, the swing joint 20 isolates disturbance factors such as twisting and tilting from the movable roof 1A and the main device 5, and even if it is difficult to smoothly drive the main device 5, the rolling wheel of the position detecting device 10 can be used. 12 and 13 can rotate along the rail R without slip. Further, since two rolling wheels 12, 13 are prepared, the probability that all the rolling wheels 12, 13 are separated from the rail R is greatly reduced. Moreover, two rolling wheels 1
2, 13 are connected to each other by a rotational force transmitting means 30,
Furthermore, since it is connected to the encoder E by another rotating force transmitting means 35, the rotating force is always reliably transmitted to the encoder E when the movable roof 1A is moving, and the accurate moving position of the movable roof 1A can be detected. it can.

In this embodiment, each rolling wheel 1 of the position detecting device 10
2 and 13 are pushed toward the rail R by the urging means 25. Each of the rolling wheels 12 and 13 is composed of a wheel whose wheel diameter is considerably smaller than that of the driving wheel 12 and the driven wheel 13 of the main device 5. Further, the rotational force transmitting means 30
Consists of a timing belt 31 and a toothed wheel 32, and another rotational force transmitting means 35
It has the same configuration as.

The configuration of the position detecting device 10 will be described in more detail.

The position detecting device 10 includes an encoder E on a base 11 and a pair of front and rear rolling wheels 12 and 13 formed of roller wheels can be rolled along the upper surface of a rail R below the base 11. It is provided with a pivot. Therefore,
The pair of front and rear rolling wheels 12, 13 have a smaller diameter than the driving wheels 12 and the driven wheels 13 of the main device 5, and have no flange.
Further, the pair of front and rear rolling wheels 12, 13 are provided with a toothed wheel 32 and a double toothed wheel provided on each of the rolling wheels 12, 13 so as to transmit rotation in the same direction as the movable roof 1A moves. Timing belt 3 attached between 32
1 by a rotational force transmission means 30.
Furthermore, one toothed wheel 32 is connected to the toothed wheel 36 of the encoder E by the same configuration but with another torque transmitting means 35. That is, the rotational force transmitting means 35 includes one toothed wheel 32, the toothed wheel 36 provided on the encoder E, and the toothed wheel 3
It is composed of a timing belt 31 mounted between 2, 36.

The swing joint 20 is for absorbing an installation level error between the movable roof main body and the rail R. In this embodiment, a connecting trunk 21 and a swing joint main body 22 provided at the lower end of the connecting trunk 21 are provided. , A support pin 23 provided on the swing joint body 22
Consists of The urging means 25 is provided on the connecting trunk 21.

The connecting stem 21 of the oscillating joint 20 is connected to the moving rail R so that the position detecting device 10 is oriented in the same direction as the main device 5 via the support pin 23.
The turn is regulated so that it does not come off. Therefore, the upper end of the connecting trunk 21 is connected to the lower part of the frame 1, and the supporting pin 23 is mounted on the upper part of the base 11 to connect the swing joint body 22 to the base 11.

The connecting stem 21 of the swing joint 20 has a structure that expands and contracts up and down, and has urging means 25 such as a spring for elastically urging the base 11 toward the rail R. By elastically urging the base 11 in this manner, the two rolling wheels 12, 13 of the position detecting device 10 are constantly pushed toward the rail R.

In the position detecting device 10 having the above structure, as shown in FIG. 2, a large inclination is applied to the oscillating joint 20 and, for example, the rolling wheel 12 connected to the encoder E by the rotational force transmitting means 35 is moving. The other rolling wheel 13 can contact the rail R and transmit its rotational force to the encoder E via the rotational force transmitting means 30 and 35, so that one of the rolling wheels always rotates. The force is transmitted to the encoder E.

The rolling wheels 12 of the position detecting device 10
13 is pushed toward the rail R by the urging means 25 of the connecting trunk 21, so that the wheel surface does not rise from the rail surface. That is, occurrence of slip of the rolling wheels 12 and 13 is prevented. These contribute to more accurate detection of the moving position of the movable roof 1A.

Further, each rolling wheel 12 of the position detecting device 10
Since the driving wheel 13 and the driven wheel 13 of the main unit 5 are formed of wheels having a considerably smaller diameter than the driving wheel 12 and the driven wheel 13, the detection error is small. You can roll along faithfully. These contribute to more accurate movement position detection of the movable roof 1A.

Further, the rotational force transmitting means 30 of the position detecting device 10 includes a timing belt 31 and a toothed wheel 32.
Similarly, since the torque transmitting means 35 is composed of the timing belt 31 and the toothed wheels 32 and 36, the torque transmission is accurate and the flexibility is high.

As the movable roof on which the position detecting device 10 is mounted, there can be mentioned a movable roof of parallel movement type, a movable roof of swiveling fan type, and the like. Hereinafter, an example in which the position detection device 10 is mounted on these movable roofs will be described.

FIG. 4 shows an example in which the movable parallel movable roof 1A is to be mounted. FIG. 4 shows a state in which a plurality of parallel movable movable roofs 1A move on a pair of parallel rails R as viewed from above. For each parallel movable movable roof 1A, the position detection device 10 is provided on one side. One by one, so total 2
Are installed. That is, the position detecting device 10 having the above-described configuration is mounted on the frame 1 between the main devices 5 and 5 for the pair of parallel rails R and R, respectively.

In the state shown in FIG. 4, the parallel movable movable roof 1A can always be moved at the same position on both sides in a plane along a pair of rail lines by detecting the accurate moving position without slipping by the encoder E. The opening / closing of the movable roof 1A is controlled accurately.

However, when a large error occurs in the detected value of the moving position between the pair of position detecting devices 10 due to slippage or the like during the movement of the movable roof 1A, there are several points on the traveling rail line. A limit switch is arranged, and the main device 5 on the preceding side stops by pressing the limit switch, and the main device 5 on the other side that is delayed
It is also conceivable that the correction system waits for the arrival at the position, re-inputs the correct value at the position, and then resumes the movement.

Alternatively, an error of the moving position detected by the pair of position detecting devices 10 is measured for each of the parallel movable movable roofs 1A, and when the error reaches a certain value, the leading main device 5 is controlled. A correction system that performs on-off control to stop and delay the main device 5 on the lag side until the error disappears is also conceivable.

If the error is equal to or less than a certain fixed value, the movable roof 1A is controlled to open and close using the moving position detected by the preceding position detecting device 10 or detected by the two position detecting devices 10. The opening / closing control is performed using the average value of the moving positions detected, and the opening / closing control is performed using the moving position detected by the position detecting device 10 on the delayed side. Which method is used to control the opening and closing of the movable roof 1A is arbitrary.

FIG. 5 shows an example in which the swiveling fan-shaped movable roof 1B is to be mounted. FIG. 5 shows a state in which two revolving fan-shaped movable roofs 1B move on one arc-shaped rail R around the revolving axis and open right and left, as viewed from above, and one revolving fan-shaped movable roof is shown. One position detecting device 10 is mounted for each 1B. That is, the position detecting device 1 for the arc-shaped rail R is used.
0 is mounted on the frame 1 between the main units 5 and 5 on the circumferential side, and the encoder E detects the accurate moving position without slip, thereby replacing the moving position with an angle and detecting the turning center angle θ. Accurate opening / closing control of the revolving fan-shaped movable roof 1B is performed.

In the case where the revolving fan-shaped movable roof 1B rotates around a revolving shaft as shown in FIG. 5, it is sufficient to mount the position detecting device 10 only on the arcuate rail R side. However, although not shown, when there are a pair of inner and outer arc-shaped rails R, the position detecting device 10 having the above configuration may be mounted on the frame 1 between the main devices 5 and 5 for the pair of arc-shaped rails R and R, respectively. . In this case as well, as a correcting means when a large error occurs in the detected value of the turning center angle between the pair of position detecting devices 10 due to slip or the like during the movement of a certain swiveling fan-shaped movable roof 1B, several points are provided on the traveling rail line. A limit switch is arranged, the leading main unit 5 stops pressing the limit switch, waits for the arrival of the delayed main unit 5, and inputs the exact value at that position. A correction system that resumes the turning movement after the correction is considered. Alternatively, an error of the turning center angle detected by the pair of position detecting devices 10 is measured for each turning fan-shaped movable roof 1B, and when the error reaches a certain value, the leading main device 5 is stopped, A correction system that performs on-off control such that the main device 5 on the lag side catches up until there is no error can be considered.

In addition to the above configuration, the position detecting device 10 can be connected to the main device 5 and mounted. Further, the gears, chains and sprockets are connected to the rotational force transmitting means 30, 35.
It can also be used as Further, the rolling wheels 12, 13
An anti-slip material can be appropriately attached to the surrounding surface.

Further, in the above configuration, all the main units 5 are trolleys provided with the drive wheels 2 and the driven wheels 3, but this is not always necessary, and the trolleys provided only with the drive wheels or the trolleys provided only with the driven wheels May be mixed to support the frame 1.

[0032]

As is clear from the above description, according to the movable roof position detecting device of the first aspect, the movable roof frame and at least one of the drive wheel and the driven wheel are provided. A position detection device for a movable roof having a position detection encoder mounted on one of a main device and a main device for moving the frame along a rail, and a movement direction and a movement direction through a swing joint using a support pin. Being mounted so as to be pivotable in the same direction, and being separate from the driving wheel and the driven wheel, rolling along the rail and being connected to each other by a rotational force transmitting means. And at least two rolling wheels, and the rolling wheels are used to rotate the encoder via another torque transmitting means. Position detector from a disturbance factor such inclination is isolated by tilting joint, rolling wheel position detector can be rotated without slipping along the rails. In addition, two rolling wheels are provided, which greatly reduces the probability that all of the rolling wheels will be separated from the rails. When the movable roof moves, the torque is always transmitted to the encoder reliably, and the exact position of the movable roof moves. Can be detected.

According to the movable roof position detecting device according to the second aspect of the present invention, since the rolling wheels are pushed by the urging means toward the rails,
The rolling wheels are prevented from floating from the rails,
The occurrence of slippage of the rolling wheels is prevented, which can contribute to more accurate detection of the moving position of the movable roof.

According to the position detecting device for a movable roof according to the third aspect of the present invention, since the rolling wheels are constituted by roller wheels, they are compared with the driving wheels and driven wheels of the main device. As the rolling wheels of the position detecting device are small, the detection error is small, and since there is no flange, the rolling can be faithfully rolled along the rail surface, thereby contributing to more accurate detection of the moving position of the movable roof.

According to the movable roof position detecting device according to the fourth aspect of the present invention, since the torque transmitting means is constituted by the timing belt and the toothed wheel, the torque transmitting means is provided. Accuracy and flexibility.

[Brief description of the drawings]

FIG. 1 is an elevation view showing a basic configuration example of a movable roof position detecting device according to the present invention.

FIG. 2 shows a characteristic operation state of the position detecting device of FIG. 1 in a state in which one of the two rolling wheels, which is closer to the encoder, floats from the rail, and the other rolling wheel is in contact with the rail. Elevation.

FIG. 3 is a perspective view partially showing a state in which the position detection device of FIG. 1 is mounted on a frame of a movable parallel movable roof.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a plan view showing a state where the position detection device of FIG. 1 is mounted on a frame of a swiveling fan-shaped movable roof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Movable roof frame 1A Parallel movable movable roof 1B Swiveling fan-shaped movable roof 2 Drive wheel of main device 3 Driven wheel of main device 5 Main device 10 Position detection device of movable roof 11 Base 12, 13 Rolling wheel 20 Swing Joint 21 Connecting trunk 22 Oscillating joint body 23 Support pin 25 Biasing means 30 Rotating force transmitting means 31 Timing belt 32, 36 Toothed wheel 35 Rotating force transmitting means E Encoder R rail

Claims (4)

[Claims] 1. A movable roof having a position detection encoder mounted on one of a movable roof frame and a main device having at least one of a driving wheel and a driven wheel and moving the frame along a rail. A position detecting device, which is pivotally supported so as to be swingable in the same direction as the movement direction via a swing joint using a support pin,
And at least two rolling wheels that are separate from the driving wheels and the driven wheels and that roll along the rails and are connected to each other by a rotational force transmitting means. A position detecting device for a movable roof, wherein the encoder is rotationally driven via a rotational force transmitting means. 2. The rolling wheel according to claim 1, wherein said rolling wheel is pressed by said urging means toward said rail.
3. The position detection device for a movable roof according to claim 1. 3. The movable roof position detecting device according to claim 1, wherein the rolling wheel is formed of a roller wheel. 4. The movable roof position detecting device according to claim 1, wherein said torque transmitting means comprises a timing belt and a toothed wheel.