JPH0322468Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention has a curved door near both ends above the entrance.
A driving wheel and a driven wheel to which a driving source is connected are provided rotatably, a transmission member is wound between the driving wheel and the driven wheel, and this transmission member is attached to the upper part of the curved door and rotates in the direction of movement of the curved door. This invention relates to a curved door opening/closing device that is connected to a connecting member that is swingable on a vertical plane perpendicular to the vehicle, drives a drive wheel by a drive source, and opens and closes a curved door via a transmission member.

Conventionally, it was applied as an opening/closing device for curved doors in 1983.
There is one shown in 74721. As shown in FIG. 1, this device connects a curved door 2 movable along an arcuate rail 1 to a transmission member 3 such as a wire stretched between a driving wheel 5 and a driven wheel 6 above the door. They are connected using a connecting member 4, and a driving source 7 drives a transmission member 3 via a driving wheel 5 to open and close the curved door 2.

In this device, the curved door 2 moves in an arc and the transmission member 3 moves in a straight line, so the connecting member 4 is connected to the door 2.
The door is configured to be swingable on a vertical plane perpendicular to the direction of movement of the door, thereby compensating for the difference in distance between the opening/closing position of the door and the driving position of the transmission member.

However, in this device, when the curved door 2 is in the half-open state, the transmission member 3 is in a straight line as shown by the solid line in FIG. As shown by the dotted line, the transmission member becomes like 3' and is not straight. This increases the tension in the transmission member 3. As described above, when the tension of the transmission member 3 changes depending on the opening/closing state of the curved door 2, the opening/closing action cannot be performed smoothly, and the life of the transmission member 3 is shortened. The reason for this is that the attachment part 4a for attaching the transmission member 3 to the connection member 4 is not aligned with the transmission member 3 due to the drive position of the door 2, which means that the attachment part 4a of the connection member 4 is not aligned with the transmission member 3 in the direction of movement of the transmission member. This is because it becomes twisted.

The present invention was developed in view of the above-mentioned problems, and the mounting part of the connecting member rotates on a horizontal plane including the transmission member no matter what position the curved door is driven. The technical problem is to absorb and follow the torsion in the direction of movement of the transmission member. A means to solve this technical problem is to fix the transmission member to a fixture, and to attach this fixture above the connecting member so as to be rotatable on a horizontal plane containing the transmission member. By adopting this method, when the curved door is driven and moves, the fitting to which the transmission member is fixed rotates relative to the connecting member in response to the arc movement of the curved door, so that the transmission member and the fitting are always aligned. kept on line. Therefore, the fixture is not twisted with respect to the traveling direction of the transmission member, and it is possible to prevent a change in the tension of the transmission member due to this twisting, and also to prevent deterioration due to a change in tension.

An embodiment to which the present invention is applied will be described below with reference to FIGS. 2 to 4. In the figure, a curved door 11 is attached to a rail 13 attached to a wall surface 12.
It is supported by and can move along this rail 13. A driving wheel 14 and a driven wheel 15 are rotatably attached to the main body (not shown) above the door 11, and the driving wheel 14 is connected to the driving source 1.
It is connected to 6. A transmission member 17 such as a wire or a belt is wound around the driving wheel 14 and the driven wheel 15. The door hanger 18 is fixed to the upper part of the door 11 and has a shaft portion 19 extending in the direction in which the door 11 moves. A connecting member 22 is rotatably attached to this shaft portion 19 so that it can swing freely on a vertical plane perpendicular to the direction in which the door 11 moves. A shaft portion 21 is provided on the upper part of this connecting member 22, and this shaft portion 21
A mounting fixture 24 is rotatably attached to the mounting fixture 2.
A transmission member 17 is fixed to 4. Note that a door wheel 25 that moves on the rail 13 is attached to the door hanger 18.

In this curved door opening/closing device, when the drive source 16 is activated and the drive wheel 14 connected to the drive source 16 rotates in the direction of arrow A, the transmission member 17 advances in the direction of arrow B, and the attachment 24 rotates in the direction of arrow B. , the door 11 connected via the connecting member 22 is moved along the rail 13 to the closed position. When the driving wheel 14 is rotated in the direction opposite to the arrow A by the drive source 16, the transmission member 17 moves in the opposite direction to the arrow B, and the door 1
1 moves to the open position.

When operated in this manner, the transmission member 17 moves linearly and the door 11 moves in an arc, so the connecting member 22 moves when the door 11 is in the fully closed position.
It swings toward the door 11 with the shaft 19 as an axis, reaching the state shown by the chain line E in FIG. The state shown in is reached. When the door 11 is moved in the closing direction and reaches the half-open position, the connecting member 22 is in the state shown by the solid line in FIG. 4c, and the fixture 24 is rotated to the state shown in the solid line in FIG. 4b. do. door 11
When it reaches the fully closed position, the connecting member 22 swings toward the door again to the state shown by the chain line E in FIG. 4c, and the fixture 24 rotates to the state shown by the chain line G in FIG. 4b. .

In this way, in accordance with the movement of the transmission member 17 and the door 11, the connecting member 22 swings around the shaft 19, and the fixture 24 rotates around the shaft 21, so that the transmission member 17 is constantly rotated. Hold it almost in a straight line.

2a shows the door 11 in the half-open position, and FIG. 3 shows the door 11 in the fully closed position.

As explained above, this invention moves a curved door movable along a curved rail and a transmission member stretched between an upper driving car and a driven car at a right angle to the traveling direction of the curved door. The transmission member is connected by rotatably attaching the fixture that fixes it to the connecting member that swings on a vertical plane, so the transmission member is always held almost in a straight line, the change in tension is small, and the This has the advantage that opening and closing operations are performed smoothly and the life of the transmission member is extended.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of a conventional curved door opening/closing device.
Fig. 1a is a plan view, Fig. 1b is a front view, Figs. 2 to 4 are views showing the curved door opening/closing device of this invention, and Fig. 2a is a plan view in a half-open state. , FIG. 2b is a full front view, FIG. 3 is a plan view in the fully closed state, and FIG. 4 is an enlarged view of the connecting member.
Figure a is a front view, Figure 4b is a plan view, and Figure 4c is a side view. 11...Curved door, 13...Rail, 14...
Drive vehicle, 15... Driven vehicle, 17... Transmission member, 2
DESCRIPTION OF SYMBOLS 1... Shaft part, 22... Connection member, 23... Connection part, 24... Fixture.

Claims (1)

[Scope of utility model registration request] A driving wheel and a driven wheel to which a driving source is connected are rotatably provided near both ends above the entrance of the curved door, and a transmission member is wound between the driving wheel and the driven wheel, and this transmission member is connected to the curved door. In the curved door opening/closing device, which is attached to the upper part of the curved door and connected to a connecting member so as to be swingable on a vertical plane perpendicular to the direction of travel of the curved door, the transmission member is fixed to a fixture, and the fixture is attached to the connecting member. A curved door opening/closing device characterized in that the member is rotatably mounted on a horizontal plane including a transmission member above the member.