JPS62275917A - Conveying device between indoor and outdoor spaces - Google Patents

Abstract

PURPOSE:To prevent polluted air from entering indoors when an object to be conveyed is conveyed from inside to outside of a room while both a turntable and a cover for relay-conveying are turned outside the room, with the outside space neighboring the room, by closing an inlet and an outlet on the room wall sides by means of covers. CONSTITUTION:A relay-conveying means 6 having a cover 17 is arranged adjacently to an outer wall 5 of a working room 1. The relay-conveying means 6 has a turntable 4, an inlet 18 for an object to be conveyed (workpiece) 16, and an outlet 19. The workpiece 16 is moved from the inlet 18 to the turntable 4 by means of a conveying passage 2 in the working room 1. The outlet 19 is closed by a fixed cover 20. The workpiece 16 is conveyed outdoors by rotating the turntable 4 in the direction of the arrow, closing the inlet 18, and engaging the outlet 19 with the outdoor conveying passage 3. Air pressure in the working room 1 is adjusted to be slightly higher than the atmospheric pressure. With such an arrangement, polluted air from outside is prevented from entering the working room 1 to keep it clean.

Description

[Detailed description of the invention] 3. Detailed description of the invention (industrial application field) The present invention connects an indoor transport route and an outdoor transport route by a relay transport means on a turntable installed outside the room,
The present invention relates to an indoor/outdoor conveyance device that changes the direction of a conveyed object from one conveyance path to another conveyance path and transfers the object from one conveyance path to another.

(Prior art and its problems) When a workpiece support platform is provided with a transport path extending from a work chamber, generally called a clean booth, to the outside, the workpiece is passed through a carry-out opening provided in the wall of the work chamber. In order to prevent dirty air from outside from flowing into the working chamber, a so-called automatic door was attached to the carrying-out opening. However, in the conventional configuration using this automatic door, not only is the entire device expensive, but there are also problems in terms of dust prevention measures during operation, installation space, etc.

(Means for Solving the Problems) The present invention proposes an indoor/outdoor conveyance device capable of solving the conventional problems as described above, and its features include a turntable equipped with a relay conveyance means. is placed outside the room adjacent to the room wall, and by rotation of this turntable, the
The conveyance means is configured to be selectively connected to the indoor conveyance path and the outdoor conveyance path, and the turntable is provided with an entrance/exit for the conveyed object on the peripheral wall that covers the conveyance path on the turntable. Further, a cover is provided that rotates together with the turntable, and when the relay conveyance means is connected to the outdoor conveyance means, the entrance and exit of the conveyed object on the chamber wall side is closed by the peripheral wall of the cover. be.

(Example) An example of the present invention will be described below based on the attached illustrative diagrams. 1 indicates a work room called a clean booth, 2
denotes an indoor conveyance path provided in the work chamber 1; 3 an outdoor conveyance path arranged perpendicular to the indoor conveyance path 2; and 4 a turntable installed adjacent to the work chamber wall 5. , 6 is a relay conveyance means provided on the turntable 4.

The relay conveyance means 6 includes conveyed object support rollers 8a and 8b which are respectively pivotally supported at appropriate intervals inside a pair of side frames 7 that sandwich the conveyance path, and which are coaxially supported with the conveyed object support rollers 8a and 8b. Driven rollers 9 provided in the side frames 7, each side frame 7 so as to rotate in contact with these driven rollers 9.
It is composed of a drive heald 12 suspended between a drive pulley 10 and a reversing pulley 11 within the inner frame, and a motor 15 that drives the drive pulley 10 within both side frames 7 via an intermediate transmission shaft 13 and a heald transmission means 14. The flat plate-shaped work support stand 16, which is an object to be transported, has one side bent downward, which fits into a circumferential groove provided in one of the object support rollers 8a, and is also bent downward. The other side is supported horizontally on the other conveyed object support roller 8b,
It is propelled in one direction by the rotation of both rollers 8a and 13b.

Note that the indoor and outdoor transport paths 2 and 3 are provided with transport means having the same structure as the relay transport means 6.

Reference numeral 17 denotes a cover attached concentrically to the turntable 4 so as to cover the conveyance path of the workpiece support stand 16 by the relay conveyance means 6, and the cylindrical peripheral wall 17a has a cover at both ends of the relay conveyance means 6. Corresponding workpiece support platform entrance 18
and an exit port 19 are provided. Reference numeral 20 denotes a cylindrical fixed cover that covers the periphery of the turntable side cover 17, and is fixed to a fixed base 21 that pivotally supports the turntable 17 and the chamber wall 5, and is provided with three examples of outdoor transportation routes for the fixed cover 20. An opening 22 from which the turntable side cover 17 protrudes is provided on the side surface of the chamber wall 5, and a workpiece support passageway that communicates with a workpiece support outlet 23 provided on the chamber wall 5 is provided on the side surface of the chamber wall 5. An opening 24 for use is provided.

When sending the workpiece support stand 16 from the indoor transport path 2 in the work chamber 1 to the outdoor transport path 3, the turntable 4 is connected to the indoor transport path 2 by the relay transport means 6 as shown in FIGS. 1 to 3. Rotate it in the direction you want. At this time, as shown in the figure, the workpiece support stand entry port 18 of the turntable side cover 17 is the workpiece support stand passage opening 2 of the fixed cover 20.
The opening 22 of the fixed cover 20 on the outdoor conveyance path side is closed by the peripheral wall 17a of the turntable side cover 17. Therefore, the work chamber 1 has a workpiece support stand outlet 23 in the chamber wall 5 and a workpiece support stand passage opening 2 in the fixed cover 20.
Although it communicates with the inside of the turntable side cover 17 via the cover 4, it is cut off from the outside of this cover 17, that is, from the outside world.

In such a state, the motor 15 of the relay conveyance means 6 is operated, and each conveyed object support roller 8 is moved by the drive belt 12.
By rotating a and 8b, the work support stand 16 sent out from the indoor conveyance path 2 passes through the work support stand outlet 23 of the chamber wall 5 and the work support stand passage opening 24 of the fixed cover 20 from the indoor conveyance path 2. It is drawn into the turntable side cover 17 by the relay conveyance means 6 via the turntable side cover 17 .

When the workpiece support stand 16 is pulled in to a predetermined position, the drive of the conveyed object support rollers 8a and 8b by the motor 15 is stopped, the workpiece support stand 16 is stopped on the relay conveyance means 6, and the turntable 4 is moved to the 90 1 degree in the direction of the arrow in Figure 1.

As a result, the relay conveyance means 6 is oriented to connect to the outdoor conveyance path 3, and the peripheral wall portion of the turntable side cover 17 where the workpiece support stand exit port 19 is provided is connected to the fixed cover 2.
0 protrudes from the opening 22 of the workpiece support stand exit port 1.
9 is opened, and the work support passage opening 24 of the fixed cover 17 is closed by the peripheral wall 17a of the turntable side cover 17. That is, the workpiece support stand outlet 23 provided in the chamber wall 5 is closed by the fixed cover 20 and the peripheral wall 17a of the turntable side cover 17, and the working chamber 1 is also shielded from the outside world.

In such a state, by driving the relay conveyance means 6 as described above, the workpiece support 1 on the relay conveyance means 6 is
6 can be delivered to the outdoor conveyance path 3 through the work support stand exit port 19 of the turntable side cover 17.

In addition, if the direction of the conveyed object when it is sent out to the outdoor conveyance path 3 may be opposite to the direction when it moves on the indoor conveyance path 2, the turntable 4 may be moved in the opposite direction to that in the above embodiment. 90 degrees to connect the end of the relay conveyance means 6 on the object pull-in side to the outdoor conveyance path 3, and drive the relay conveyance means 6 in the opposite direction to the direction when pulling in the object. It is also possible to reverse the transport from the relay transport means 6 and send it to the outdoor transport route 3. In this case, the conveyed object (work support stand) entrance port 18 of the turntable side cover 17 also serves as the conveyed object exit port, so the conveyed object (work support stand) exit port 19 is unnecessary. and
The fixed cover 20 is used for transporting objects (workpiece support) on the chamber wall 5.
Any material that covers the gap between the outlet 23 and the peripheral wall 17a of the turntable side cover 17 may be used.

Further, the turntable of the above embodiment and the relay conveyance means on the turntable can also be used as a means for transporting objects from the outdoor conveyance route to the indoor conveyance route.

(Operations and Effects of the Invention) According to the indoor/outdoor conveyance device of the present invention which can be implemented as described above, when an object to be conveyed is drawn onto a turntable from an indoor conveyance path, and when an object is to be conveyed from above this turntable, When the object is not sent to the outdoor transport path, the entrance/exit of the object to be transported on the chamber wall side can be closed by the peripheral wall of the cover that rotates together with the turntable. Therefore, even if the room is used as a so-called clean booth, the air pressure inside the room is regulated to be slightly higher than atmospheric pressure, and the dirty air from the outside will be absorbed when loading and unloading objects. This eliminates the inconvenience of objects flowing into the room from the entrance/exit of the room wall.

Moreover, since the rotation of the turntable for changing the direction of the transported object can be used directly to automatically open and close the transported object entrance in the chamber wall, a special drive means is not required to open and close the transported object entrance. It is not necessary and can be implemented very cheaply. Further, since the cover can be installed on the turntable so as to cover the turntable, a special installation space is not required as in the case of installing an automatic door, and furthermore, dustproof measures are not required.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional plan view, Figure 2 is a vertical side view, Figure 3 is a vertical side view of the main part, Figure 4 is a vertical front view of the main part, and Figure 5 is a perspective view of the turntable side cover. be. DESCRIPTION OF SYMBOLS 1...Working room, 2...Indoor transport route, 3...Outdoor transport route, 4...Turntable, 5...Room wall,
6... Relay conveyance means, 16... Work support stand (transferred object), 17... Turntable side cover, 17a.
...Cover peripheral wall, 18...Work support stand entrance, 19
...Work support stand exit port, 20...Fixed cover, 2
2... Opening, 23... Work support stand exit, 24...
...Opening for passage of workpiece support.

Claims (1)

[Claims] A turntable equipped with a relay conveyance means is disposed outdoors adjacent to a chamber wall, and the relay conveyance means is configured to be selectively connected to the indoor conveyance path and the outdoor conveyance path by rotation of the turntable. A cover is provided on the turntable, which covers the transport path on the turntable, has an entrance/exit for the transported object on the peripheral wall, and rotates together with the turntable, and the relay transport means is connected to the outdoor transport means. The indoor/outdoor transport device is configured to close an entrance/exit of the transported object on the chamber wall side with the peripheral wall of the cover when the object is being transported.