JPH07122299B2 - Retractable roof moving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to an opening / closing roof moving device applied to a vertically moving opening / closing roof.

<Prior art> In a conventional vertically movable open / close roof, a winch is generally installed below the outer end of the beam supporting the movable roof in order to move the heavy roof vertically against gravity. ,
The wire rope unwound from the winch was guided to the top of the beam by a sheave or the like, further hung around the sheave at the top, and the tip of the wire rope was locked to the moving roof while being inverted toward the bottom of the beam.

As a result, the movable roof was hoisted down by rotating the winch forward and backward.

<< Problems to be solved by the invention >> However, in the conventional moving device, in the part of the sheave that changes the pulling direction of the wire rope, the pulling reaction force when moving the roof to the shaft supporting the sheave, A sheave and winch installation structure that can sufficiently withstand this reaction force is required, and there is a disadvantage in that the structure becomes heavier.

The present invention has been made in view of the above circumstances, and an object thereof is to solve the problem that the structure of the entire retractable roof becomes a problem in terms of strength due to the structure of the moving device required to drive the movable roof to open and close. To provide a moving device for the openable roof.

<< Means for Solving the Problem >> In order to achieve the above object, a moving device for a retractable roof according to the present invention is a movable roof that is vertically moved while being supported on arch beams extending from the bottom to the top. On the back side, a chain is stretched along the moving direction of the moving roof, and on the arch beam, a gear for opening and closing drive is engaged which engages with the chain and rotates while resisting the reaction force including the own weight of the moving roof. I fixed them on. Further, in order to further move the stackable vertically movable open / close roof in which the movable roof has a two-tier structure, the movable roof is used as a lower movable roof, and an upper movable roof is further stacked on the movable movable roof to open and close them. It is a moving roof of the stacking vertical movement type, and while fixing one end of ropes, belts, etc. to the base ends of the beams that support these roofs, and hanging it around the sheave attached to the tip of the lower moving roof, The other end was fixed to the lower end of the upper moving roof by turning it over the lower moving roof.

<Operation> To explain the operation of the present invention, the gear is fixed to the arch beam extending from the bottom to the top, the chain is engaged with the gear, and the movable roof is driven by the rotation of the gear. Therefore, as in the case of the conventional drive mechanism consisting of the wire and the sheave, the bending of the wire accompanying the change of the pulling direction by the sheave causes the pulling reaction force including the self-weight of the moving roof to change to various structures such as arch beams. The driving reaction force including the own weight of the moving roof when the moving roof is moved along the arch beam can be supported by the arch beam at a fixed position where the gear is fixed without being applied from the direction.

The moving roof that moves in this way is the lower moving roof,
Another movable roof is movably stacked on it, and when the lower movable roof is moving toward the base end of the beam supporting the movable roof, the lower movable roof is moved from the position of the lower base of the beam such as ropes and belts. Since the length between the tip parts is the shortest, the part beyond the sheave at the tip part of the lower moving roof is inverted and folded back, and this folded part becomes longer, so the upper moving roof is It moves on the lower moving roof toward the base end part of the beam while keeping its own weight, and becomes a state of being superimposed on the lower moving roof.

On the contrary, when the lower moving roof is moved upward, the ropes, belts, etc. from the tip of the lower moving roof are linearly changed while being rewound toward the lower moving roof. Is moved toward the top of the beam. That is, as the lower movable roof is moved in the vertical direction, the upper movable roof also follows the open / close movement.

<< Embodiment >> FIG. 1 shows a side view of a vertically movable open / close roof. The open / close movable roof 1 moves on a guide rail attached to the surface of an arch beam 2 while being supported by traveling wheels. The power for the movement depends on the movement device described below.

First, a chain 3 is stretched on the back surface of the moving roof 1 along the moving direction thereof. The chain 3 is stretched linearly from the upper end to the lower end of the movable roof 1. Further, in order to keep the slack of the chain 3 to a minimum, a chain pressing roller 4 is arranged on the rear surface of the moving roof 1 and on the surface of the chain 3, and a chain receiving roller for supporting the chain 3 also on the arch beam 2. 5 are arranged intermittently.

In the middle part of the arch beam 2, when the moving roof 1 descends to the base end of the arch beam 2, that is, when the moving roof 1 is in the open state, it is located at the tip end as much as possible and the Chain 3 with teeth protruding slightly from the surface
A hydraulic motor 7 which is provided with a sprocket 6 for engaging with the
Are arranged in parallel on the left and right. A hydraulic pipe 8 is arranged along the arch beam 2 to drive the hydraulic motor 7, and the hydraulic unit 9 is installed at the base end of the arch beam 2.

Therefore, when the hydraulic motor 7 is rotationally driven, the chain 3 of the movable roof 1 is driven by the sprocket 6 in the rotational direction of the sprocket 6. The slack in the middle part of the chain 3 is supported by the chain receiving roller 5 and is pressed downward by the chain pressing roller 4, so that it does not easily come off at the position where it engages with the sprocket 6, and the slack in the rotating direction is sequentially increased. Chain 3 while engaging with
Is transmitted, the movable roof 1 moves accordingly.

Since the movable roof 1 supported by such arch beams 2 moves in the vertical direction and its slope gradient is steep, a force that always attempts to fall downward is exerted and it is necessary to control this. Driving by the hydraulic motor 7 is preferable. Of course, not only the hydraulic motor but also an ordinary three-phase induction motor or the like may be used, but in these cases, a separate brake is required. The hydraulic motor 7 is therefore advantageous because it has its own braking force in the reverse direction. Furthermore, since the rotational torque of the hydraulic motor is extremely large, light and compact, and low rotation is possible, it is advantageous from the viewpoint of the structure and weight of the speed reducer.

A dome roof required for a baseball field or the like may form a large-scale arch beam, and in such a case, it is realistic to stack moving roofs in several stages to increase the aperture ratio. If you think about when two layers are stacked,
An embodiment as shown is obtained. That is, the situation is shown in FIG. In the figure, the lower movable roof 1a has the sprocket 6 driven by the hydraulic motor 7 as already described.
The chain 3 arranged on the rear surface of the moving roof 1a is engaged to move, and separately from this, one end of the wire rope 10 is fixed to the base end portion of the arch beam 2, and the wire rope 10 is fixed from this fixing point. The movable roof 1a is guided to the front end thereof, and is folded back while being inverted on the movable roof 1a by the sheave 11 at this front end, and the other end of the folded back is locked to the lower portion of the upper movable roof 1b.

When the lower movable roof 1a is driven upward with the rotation of the sprocket 6, the folding point of the wire rope 10 is pushed by the sheave 11 at the tip of the lower movable roof 1a, and the upper movable roof 1b is also pushed upward in a linked manner. That is, the upper moving roof 1b is moved through the wire rope 10 by the lower moving roof 1a.
Acts to push up. The movement is shown in FIGS. 3 (a) and 3 (b). As can be seen from the figure, when the wire rope 10 extends straight on the arch beam 2, the upper movable roof 1b has moved above the arch beam 2. In this way, the movable roofs 1a and 1b close the openings such as the dome roof. Conversely, the moving roof 1a, 1
When opening the b, if the direction of rotating the sprocket 6 is reversed, the lower moving roof 1a descends downward in sequence, and the length of the folded portion of the wire rope 10 increases accordingly, so the upper moving roof 1b moves downward. It comes down so as to overlap on the roof 1a.

<Effect> As described in detail above, the opening / closing type roof moving device of the present invention vertically moves a chain on the back side of the moving roof, rotates a gear engaged with the chain, and opens / closes the opening / closing direction depending on the rotation direction. Since it is controlled to drive, the gravity of the moving roof itself is received when opening the moving roof,
Also, when the moving roof is raised, it receives the rising reaction force, and these reaction forces always act through the support shaft of the gear that engages the chain toward the base end of the beam that supports the moving roof. Therefore, it is sufficient to configure the reinforcing strength enough to face the linear load acting in the base end direction of the arch beam. Therefore, it is not necessary to consider the action of the loads which are different in directionality due to the wire line bending which accompanies the case where a wire is wound around and driven by a winch as in the conventional case.

In addition, in the case of a stackable vertical moving type open / close roof in which multiple moving roofs are stacked vertically, the rope, belt, etc., whose one end is fixed to the base end of the beam, are folded back at the tip of the lower moving roof and inverted. Since the end of the upper movable roof is locked to the base end of the upper movable roof, the upper movable roof can be driven to open and close by merely moving the lower movable roof. In this case as well, the force associated with opening and closing acting on the upper moving roof only pushes up the upper moving roof from the base end, so structural reinforcement strength is quite light.

[Brief description of drawings]

Each of the drawings is for explaining a moving device for a retractable roof according to the present invention. FIG. 1 is a side view showing the moving device, and FIG. 2 is a stacking vertical moving type moving roof of the present invention. Explanatory drawing showing the case where the moving device is applied, FIG. 3 (a) is a side view showing the case where the moving device of the present invention is applied to a moving roof of a stacking vertical movement type, and FIG. 3 (b) is FIG. It is a side view which shows the movement state of (a). 1 ... Moving roof, 2 ... Arch beam, 3 ... Chain, 4 ... Chain pressing roller, 5 ... Chain receiving roller, 6 ... Sprocket, 7 ... Hydraulic motor, 8 ... Hydraulic piping, 9 ... Hydraulic unit, 10 ... wire rope

Claims (2)

[Claims] Claim: What is claimed is: 1. A chain is stretched on the back surface of a moving roof that is moved up and down while being supported on an arch beam extending from the bottom to the top, and a chain is attached along the moving direction of the moving roof. An opening / closing roof moving device, wherein a gear for opening / closing drive which is engaged with the chain and rotates against a driving reaction force including the own weight of the moving roof is fixed by a shaft. 2. A movable roof of a stacking vertical movement type in which the movable roof is a lower movable roof, and an upper movable roof is further stacked on the movable roof to drive the two to open and close, and the base end of a beam supporting these roofs. While fixing one end of a rope, belt, etc. to the sheave attached to the sheave attached to the tip of the lower moving roof, flip this over the lower moving roof and fix the other end to the lower end of the upper moving roof. The opening / closing type roof moving device according to claim 1.