JPH082384Y2 - Cylinder box opening / closing door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an opening / closing door of a cylinder box.

[Prior Art] A cylinder box is used to supply a material gas to a semiconductor manufacturing line or the like, and generally, a storage space for storing a cylinder filled with the material gas and an extension from the cylinder to the outside of the box. A gas supply pipe for supplying a material gas to a semiconductor production line, a purge pipe for purging the material gas remaining in the pipe at the time of cylinder conversion, and a vacuum exhaust pipe for vacuum-sucking and exhausting the purge gas in the pipe. I have it. Then, by opening and closing a plurality of valves and the like provided in the box, it is possible to supply a predetermined amount of a predetermined material gas to a target production line.

Such a cylinder box usually has a pair of left and right doors 1 and 2 that open to the front and back, as shown in FIG. 4, and a handle 3 attached to the center of the doors 1 and 2.
By rotating to the left or right as shown by the chain line.
You can open the inside to change the cylinder inside and open and close the valve. In addition, 4 is an intake port for ventilating the inside of the box, and 5 is a peep window through which an instrument or the like inside the box can be seen.

[Problems to be solved by the device]

However, in such a cylinder box,
Since the handle 3 is projected on the front of the doors 1 and 2, the worker's clothing and items to be transported can be used when the worker passes in front of the cylinder box or when working around the cylinder box. Easy to catch on the handle 3. Also, doors 1 and 2
Since an unreasonable force is applied to the handle 3, the handle 3 itself may be distorted and the correct opening / closing operation may not be performed.
Further, although the intake port 4 is provided at the lower part of the doors 1 and 2, since the opening is not provided to the lowermost end of the box, a heavy gas is always present at the bottom of the box shown by hatching in FIG. It may accumulate and may be dangerous.

This invention was made in view of such circumstances,
Its purpose is to provide an opening / closing door for a cylinder box that combines workability, durability, and safety.

[Means for solving the problem]

In order to achieve the above object, the opening / closing door of the cylinder box of the present invention is a pair of left and right opening / closing doors mounted on the front of the cylinder box so as to open in a double-ended manner, and the edges of the left and right doors to be closed. Is bent into a vertically extending recessed groove, and the center-side edge of the recessed groove is further folded back toward the groove so that it is flush with the door surface. Are folded inward at right angles, and a cutout opening serving as an intake port is formed in this folded back portion.

[Action]

That is, the opening / closing door of the cylinder box of the present invention is formed by bending a vertically extending recessed groove at the edge of the closing side of the door, rather than attaching the opening / closing handle by protruding it to the front as in the conventional case. Further, the center side edge of the depressed groove is folded back so as to be flush with the door surface. Therefore, the door can be opened by putting a hand in the recessed groove and by touching the folded portion, and it is not necessary to provide a protruding handle. For this reason, this opening / closing door has no protruding portion, and troubles such as being caught by an operator or a transported article do not occur. Moreover, since the edge of the door on the closing side is bent many times, this bent portion reinforces the door in the vertical direction, and the door does not deform even if an impact is received and it is durable. It has excellent properties. Furthermore, since the opening / closing door of this invention has a notch opening serving as an intake port at the folded back portion of the lower end edge, not at the front surface of the door, when intake is performed from this opening / closing port, the bottom part in the cylinder box is closed. Air flows in and spreads. Therefore, there is an advantage that the gas accumulated at the bottom of the box can be swept away and safety can be ensured.

Next, this invention will be described in detail based on embodiments.

〔Example〕

FIG. 1 shows an embodiment of this invention. This cylinder box is on the right side of the conventional cylinder storage unit 10,
CRT (monitor TV) that visually displays operating procedures 11
And a control device 12 for properly controlling the gas supply in the cylinder box in accordance with the operator's response to the screen of the CRT 11 (input by the touch key).

A pair of left and right open / close doors 14 and 15 that open in a double door are attached to the front of the cylinder storage unit 10. The CRT 11 and the control unit 12 are arranged in the right and left open doors.
16,17 are attached.

Peep windows 18 through which the instruments and the like in the box can be seen are attached to the upper portions of the front surfaces of the opening and closing doors 14 and 15, respectively. Further, the lower edges of the opening / closing doors 14 and 15 are folded back inwardly at right angles as shown in FIG. 2 which is a partial bottom view of FIG. Each notch opening 19 is formed. The notch opening 19 serves as an intake port.
Furthermore, the closing edges of the opening / closing doors 14 and 15 are indicated by A in FIG.
As shown in FIG. 3 which is a sectional view taken along the line A-A ', the bent edge 14 is formed by being bent so as to have a substantially U-shaped cross section and once depressed.
The a and 15a are further folded back to form the same plane as the door surface. Therefore, the opening / closing doors 14 and 15 can be opened by putting a hand in the recessed portions 14b and 15b and holding the bent edges 14a and 15a to open them to the left and right. Reference numeral 20 is an extension plate integrally attached to the door 14 by welding, and a rubber packing 21 is attached to the tip end of the extension plate, which serves to enhance the airtightness of the closed portions of the doors 14 and 15. A packing 22 is attached along the edges of the doors 14 and 15 other than the closing edges, and also serves to enhance airtightness when the doors 14 and 15 are closed. 2
3 is the bottom plate of the box.

The doors 14 and 15 are held closed by a commercially available roller catch or magnet catch (not shown) attached to the upper and lower inner sides of the close side.

Therefore, in this cylinder box, the front opening / closing doors 14 and 15 do not have a handle protruding to the front,
Workers and transported goods passing through this area do not get caught in the door handle. In addition, the depression 14b extending in the vertical direction,
15b and the folded back edges 14a and 15a that have been folded back serve to reinforce the door surface, so that the door surface does not warp or distort due to long-term use, and is excellent in durability. Moreover, the front of the door is sleek and aesthetically pleasing. Furthermore, since the air intake opening is formed not at the front of the doors 14 and 15 but at the folded part of the lower edge, air is taken in from the bottom of the box, and dangerous gas is discharged to the bottom of the box. It doesn't accumulate. Therefore, the safety inside the cylinder box is high.

In the above embodiment, the opening / closing door of the present invention is applied to a special cylinder box equipped with a CRT, but of course, it may be applied to a cylinder box of a type not equipped with a CRT.

[Effect of device]

As described above, according to the opening / closing door of the cylinder box of the present invention, the edge portion on the closing side of the door is bent and formed in the recessed groove, and the bent edge portion is folded back in the same plane as the door surface. , This part itself is a handle. Therefore, the handle portion does not project to the front, and troubles such as catching on the handle do not occur. Moreover, since the edge of the door on the closing side is bent many times, the door is reinforced in the vertical direction, and the door does not deform even if it receives an impact, and it has excellent durability. . Furthermore, since the opening / closing door of this invention has a notch opening serving as an intake port at the folded portion of the lower edge portion, not at the front surface of the door, when intake is performed from this opening, the bottom portion in the cylinder box is closed. Air can flow in and sweep away the gas that accumulates at the bottom of the box. Therefore, there is an advantage that safety is ensured.

[Brief description of drawings]

1 is a front view showing an embodiment of the present invention, FIG. 2 is a partial bottom view thereof, and FIG. 3 is a sectional view taken along the line AA 'of FIG.
FIG. 4 is a front view showing an opening / closing door of a conventional cylinder box. 14,15 …… door, 14a, 15a …… folded edge, 14b, 15b ……
Cavity, 19 ... Notch opening

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right doors mounted on the front surface of a cylinder box so as to open in a double-ended manner, the left and right doors being formed with a recessed groove extending in the vertical direction at the edges of the doors to be closed. The center side edge of the recessed groove is further folded back toward the groove side so as to be flush with the door surface, and the lower end edges of the left and right doors are respectively folded back inward at right angles, and the intake air is drawn into this folded back portion. An open / close door for a cylinder box, which has a notched opening that serves as a mouth.