JP2012202514A - Method for reserving flexible tube or flexible wire and retaining tool used for the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporarily reserving method for preventing a pipe or a wire from falling via a through-hole during a connecting work of the pipe and wire and a retaining tool used for the method.SOLUTION: In order to connect a pipe 7a or a wire 7b with a manufacturing equipment 3 installed inside a double-bottomed working room 100 where an upper floor surface 1 is supported by a basal floor surface, the pipe 7a or the wire 7b is temporarily reserved on the upper floor surface 1. At that time, in order to prevent the pipe 7a or the wire 7b from falling via the through-hole 6 provided on the upper floor surface 1, a retaining tool has an outer form larger than the through-hole 6 and is provided with a slit 11a that reaches from a center d4 of the retaining tool to an outer rim d1 thereof and the width thereof is larger than a diameter of the pipe 7a or wire 7b and is smaller than a diameter of a coupling member 8b. Further the slit 11a is bent in the middle of its length reaching from the center of the retaining tool to the outer rim thereof.

Description

  The present invention relates to a flexible piping or wiring that prevents falling through a through hole when the flexible piping or wiring guided to the floor panel through the through hole of the floor panel is removed from the equipment. And a holding tool used therefor.

Conventionally, in a clean room such as a semiconductor factory, a plurality of air outlets equipped with filters are provided on the ceiling surface to send out clean air, while manufacturing equipment is arranged and manufactured in a work room (clean room) where people work. In order to suck in air contaminated with dust generated by equipment and people from the floor surface, the floor surface of the work room is formed with an upper floor surface laid with floor panels having a plurality of suction holes, and the floor panel is made of concrete or the like The double floor structure currently supported by the supporting member provided on the foundation floor surface of No. 1 is formed (for example, patent document 1 or 2). The underfloor space between the foundation floor and the bottom surface of the floor panel serves as a passage for collecting the contaminated air in the work chamber, as well as cooling water, washing water, chemicals, gas, and high-pressure air for the operation of the manufacturing equipment. It is used as a place for providing piping and wiring for supplying electricity, electrical signals, etc. to the apparatus from a supply source outside the working room. Further, it is used as a place for providing piping for supplying gas or liquid discharged from the manufacturing apparatus to the processing facility.

FIG. 1 is a cross-sectional view of a part of a conventional clean room facility as viewed from the side. Above the upper floor surface 1 is a work room 100, and a manufacturing apparatus 3 is disposed on the upper floor surface 1 to allow a person to work. On the other hand, below the upper floor surface 1 is an underfloor space 4 in which a main pipe 5a for supplying or discharging gas or liquid and wiring 7b for electric and electric signals are installed. 2 is a wall surface.

The main pipe 5a in the underfloor space 4 is provided with a branch pipe 20, and the branch pipe 20 is provided with a valve 21 for opening and closing a liquid or gas flow path. A flexible pipe 7 a is connected to the valve 21, and the pipe 7 a is provided with a coupler 8 b at the other end not connected to the valve 21. The reason why the pipe 7 a is flexible is to facilitate handling when connecting to the manufacturing apparatus 3 on the upper floor surface 1. Similarly, the wiring 7b has flexibility.
The floor panel forming the upper floor surface 1 is provided with a through hole 6 having a diameter larger than that of the suction hole connecting the under floor space 4 and the inside of the work chamber 100 in addition to the plurality of suction holes of the floor panel. The pipe 7 a and the wiring 7 b branched from the main pipe 5 a in the underfloor space 4 through the through-hole 6 are introduced into the work chamber 100 and connected to the manufacturing apparatus 3 via the coupler 8.

As the coupler 8, a joint composed of a pair of male and female coupling members is used. Various types of such joints are commercially available. For example, in the case of piping, a type in which coupling is performed by screwing or a pair of coupling members project into an insertion hole with a lock mechanism. A fluid coupling (referred to as “coupler (registered trademark No. 4145100)” or “quick joint”) or the like that is coupled by inserting a portion is used as the coupling member. In the case of wiring, various signal connectors such as a DVI connector, a LAN connector, and a BNC connector or various power connectors are used as coupling members. In any of these cases, the coupler 8 usually has a larger outer shape than the piping / wiring 7.

The coupling tool 8 in the illustrated example includes a pair of coupling members 8a and 8b. One coupling member 8a is fixed to the manufacturing apparatus 3 and includes a male screw for coupling the other coupling member 8b. The other coupling member 8b is connected to the end of the pipe 7a or the wiring 7b in an extended manner, and is screwed into the male screw of the coupling member 8a.

The opening diameter of the through-hole 6 is much larger than the maximum diameter of the coupling member 8b in order to provide the convenience of drawing the pipe 7a or the wiring 7b from the underfloor space 4 and the versatility of arranging a variety of various pipes 7a and wirings 7b. Big.

When the manufacturing apparatus 3 in the work chamber 100 is newly installed in such a piping state or wiring state of the piping 7a or the wiring 7b, or when the manufacturing apparatus 3 already installed is repaired or replaced, FIG. As shown by the dotted line inside, the coupling member 8b is separated from the manufacturing apparatus 3 by removing the coupling member 8b from the male screw of the other coupling member 8a.

In this case, if no countermeasure is taken, the pipe 7a or the wiring 7b and the coupling member 8b may fall into the underfloor space 4 through the through hole 6 in some cases. If dropped, it is necessary to pull the dropped pipe 7a or wiring 7b together with the coupling member 8b through the through hole 6 onto the upper floor surface 1, and the outer peripheral surface of the pulled pipe 7a or wiring 7b or the coupling member. The accumulated dust in the underfloor space 4 adheres to 8b. With this, the cleanliness of the work chamber 100 cannot be maintained. Further, the opening through which the operator can enter the underfloor space 4 is often away from the through hole 6, and if it is impossible to pull up the pipe 7 a, the wiring 7 b and the coupling member 8 b from the through hole 6, It is necessary for the worker to go under the floor space 4 to just below 6 and pull it up.

Therefore, in order to prevent the pipe 7a or the wiring 7b from falling into the underfloor space 4 through the through hole 6, for example, as shown in FIG. 2, the pipe 7a, the wiring 7b, or the coupling member 8b left on the upper floor surface 1 is adhesive tape. 9 is required to be fixed on the upper surface of the upper floor surface 1.

    Patent Documents 3 to 7 disclose conventional techniques in the case where the pipe and its joint are held on the wall surface and floor surface. However, these conventional techniques permanently fix a pipe or a joint thereof to a wall surface or a floor surface via a plate-like body and a screw member, and cannot solve the problems of the present invention.

Actual Kaihei 1-168743 Actual Kaihei 1-168745 JP 2001-263541 A Utility Model 1-78783 Japanese Utility Model Hei 1-135283 JP-A-9-247825 JP 2007-146602 A

When the adhesive tape 9 prevents the pipe 7a and the wiring 7b from falling into the underfloor space 4, there are the following drawbacks.
Each time the piping 7 a and the wiring 7 b are held with the adhesive tape 9, a new adhesive tape 9 is required, which is uneconomical, and the adhesive tape 9 bonded to the upper surface of the upper floor 11 is orderly in the work chamber 100. Impair the visual impression, such as impairing sex. Further, the used adhesive tape 9 becomes new dust.

An object of the present invention is to provide a flexible pipe or wiring temporary holding method that eliminates the above-described drawbacks and prevents the pipe from being dropped through a through-hole during tube connection work, and a holder used therefor. And

  In order to achieve the above object, the present invention extends from an underfloor space through a through-hole provided in an upper floor surface for equipment installed in a double-floor work chamber whose upper floor surface is supported by a basic floor surface, In a holding method for holding a flexible pipe or wiring to which a coupling member for connection to the device is attached to the upper floor surface, a width larger than the diameter of the pipe or wiring and smaller than the diameter of the coupling member The slit is inserted into the plate-shaped holder having an outer shape larger than the through-hole bent in the middle of the length from the center to the outer edge, and the coupling member is inserted from the outer edge side into the slit. The holding tool is placed on the through hole in a state where the coupling member is hooked.

In order to achieve the above object, the present invention extends from an underfloor space through a through-hole provided in an upper floor surface for equipment installed in a double-floor work chamber whose upper floor surface is supported by a basic floor surface, In a holder that is retained on the upper floor when a flexible pipe or wiring to which a coupling member for connection to the device is attached is removed, the holder has an outer shape larger than the through hole, and extends from the center to the outer edge. A slit is provided, and the slit is wider than the diameter of the pipe or wiring and smaller than the outer shape of the coupling member, and is further bent in the middle of the length from the center to the outer edge. And

  According to the present invention, since the flexible pipe or wiring coupling member is engaged with the slit and the plate-like body is supported on the upper floor surface, the pipe or wiring can be stably held.

Furthermore, because the plate-like body can be used repeatedly, the generation of dust can be reduced, and when the coupling member connected to the end of the pipe or wiring is locked with a holder, the plate-like body in a horizontal posture and the upright are raised on the upper floor surface. The visual impression in the working room is improved by only seeing the coupling member of the shape.

It is sectional drawing which looked at a part of clean room from the side. It is explanatory drawing which shows the conventional countermeasure by an adhesive tape. It is a holding tool for piping or wiring. It is explanatory drawing which shows the state which hold | maintained the position of piping or wiring. 4 is a side view explanatory view showing the use state in cross section. It is a figure which shows the holder which concerns on another Example. It is a figure which shows the holder which concerns on another Example.

  Hereinafter, embodiments will be described in detail with reference to the drawings.

As shown in FIG. 3, the holder 101 according to the present embodiment is a resin material such as a vinyl chloride plate (polyvinyl chloride), and both the surface c1 and the lower surface c2 have a flat circular plate shape. The holder 101 has a larger outer shape than the through hole 6. The diameter is preferably at least twice that of the through hole 6. The holder 101 is formed with a slit 11a penetrating through the holder 101 in the thickness direction.

The slit 11a opens from the center d4 of the holder 101 to the peripheral edge d1 with a width e1. Since the width e1 is larger than the diameter of the pipe 7a and the wiring 7b and smaller than the outer shape of the coupling member 8b, the pipe 7a and the wiring 7b can pass through the slit 11a but cannot pass through the coupling member 8b. In addition, the slit 11a is configured to be bent at an angle θ1 in the middle of its length. The size of the angle θ1 is such an angle that an appropriate amount of hooking force can be obtained by the bent portion d2 when the pipe 7a or the wiring 7b is pulled out from the slit 11a. In the illustrated example, the predetermined angle θ1 is approximately 90 degrees.

In this embodiment, the starting end of the slit 11a starts from the center d4 of the holder 101, but it is not always necessary to match (it is preferable to match). Further, although the holder 101 is made of PVC, it is preferable to use a thickness e2 or a material that does not bend even if the operator steps on the holder 101 with his / her foot in a state where the holder 101 is positioned so as to cover the through hole 6. preferable. This is because the width e1 increases when bent. If it is such, it is not necessary to limit to PVC.

When an operation for separating the pipe 7a or the wiring 7b from the coupling member 8a occurs due to repair / replacement or new installation of the manufacturing apparatus 3, the pipe 7a (or the wiring 7b, the figure shows the case of the pipe 7a as shown in FIG. 4) In the following, the same applies to FIGS. 5 and 6), the coupling member 8b side is set to the surface c1 side, and the other part is pushed into the slit 11a of the holder 101 from one end d1 so as to be positioned on the surface c2 side. The state is moved to the end. In this state, the coupling member 8b is hooked on the slit 11a. While holding this state, the holder 101 is moved directly above the through hole 6 in FIG. 1 and is positioned on the upper floor surface 1 in a state where the through hole 6 is covered. As a result, the coupling member 8b remains on the upper floor surface 1 in an upright manner, and the others fall into the underfloor space 4.

At this time, since the pipe 7a or the wiring 7b extends substantially horizontally with respect to the foundation floor surface or the upper floor surface in the underfloor space 4, the piping 7a or the wiring 7b is connected to the through-hole 6 penetrating vertically into the work chamber with respect to the foundation floor surface. If the 7a or the wiring 7b is passed, this is forcibly bent. For this reason, a force to straighten the pipe 7a or the wiring 7b is generated in relation to the elastic force due to the strain possessed by itself, and contact with any position on the inner peripheral surface 6a of the through hole 6 as shown in FIG. It will be in the state.

FIG. 5 shows a temporarily reserved state of the pipe 7a at this point. In this state, the holder 101 has a diameter that is twice or more that of the through hole 6, and thus covers the entire opening of the through hole 6. And is stably supported by the upper floor surface 1. In addition, since the holder 101 in this embodiment has no irregularities on any of the upper and lower surfaces c1 and c2, any one of the upper surface c1 and the lower surface c2 is placed on the lower side when holding the position of the pipe 7a or the wiring 7b. It can be used as follows.

As described above, in the temporary holding state of the pipe 7a or the wiring 7b of the present embodiment, after the pipe 7a or the wiring 7b is put in the slit 11a, it is only necessary to position the holder 101 on the through hole 6. The effort is greatly reduced.

In the temporarily reserved state of the pipe 7a or the wiring 7b shown in FIG. 4, the range in which the pipe 7a or the wiring 7b is located on the upper floor surface 1 is reduced, and the upper floor surface 1 can be used widely. Since only the holder 101 and the connecting member 8b in the standing posture can be seen, the orderliness recognized visually is improved as compared with the conventional case.

Also, an operator walking on the upper floor 1 kicks the holder 101 with his / her foot and the holder 101 rotates around the pipe 7a or the wiring 7b, and the direction of the slit 11a and the pipe 7a or the wiring 7b are elastically applied. Even if the direction of straightening coincides, the slit 11a is bent at the angle θ1, and therefore the pipe 7a or the wiring 7b is caught at the bent portion d5 of the slit 11a, and the pipe 7a or the wiring 7b is slit. It is prevented from exiting without resistance from 11a. Therefore, it is possible to effectively prevent the holder 101 from being detached from the pipe 7a or the wiring 7b and falling into the underfloor space 4 in the normal working state.

Further, since the holder 101 is a disk, even if the outer periphery is kicked, the torque around the vertical line is hardly generated and its rotation is suppressed, and its diameter is more than twice that of the through hole 6. 5A, it is kicked with a foot under the state of FIG. 5A and moves in the direction of the arrow f1 together with the pipe 7a or the wiring 7b, and the opening of the through hole 6 appears greatly on the upper floor surface 1 even in the state of FIG. 5B. There is nothing. Accordingly, it is possible to prevent tools and the like used during repair / replacement or new construction from falling into the underfloor space 4.

After the manufacturing apparatus 3 in the work chamber 100 has been repaired, replaced, or newly installed, the holder 101 is extracted from the pipe 7a and the wiring 7b, and then the coupling member 8b is coupled to the coupling member 8a of the manufacturing apparatus 3.

In Example 1, the slit 11a is bent at an angle θ1 at the bending portion d5. In this case, the width of the slit 11a is increased at the bent portion d5 (the length of the diagonal line). In this embodiment, it is bent gradually and bent so as to draw a curve as shown in FIG. In this way, the width e1 of the slit 11b can be made uniform. For this reason, when the diameter difference between the coupling member 8b and the pipe 7a or the wiring 7b is small, the possibility that the coupling member 8b falls at the bent portion d5 is reduced.

In the above embodiment, the surface c2 on the upper floor surface 1 side is a flat surface. However, in this embodiment, a projection is provided. As shown in FIG. 7, the lower surface when positioned on the upper floor surface 1 so that at least one of the upper surface c <b> 1 or the lower surface c <b> 2 of the holder 101 covers the opening of the through hole 6. Two or more protrusions 12 that are simultaneously inserted inward of the through-hole 6 are formed in c2, and the horizontal movement of the holder 101 is limited to a certain limit by the contact of the protrusions 12 with the inner peripheral surface 6a of the through-hole 6. To be regulated within.

In this way, it is possible to prevent the projection 12 from hitting the end of the through-hole 6 and the opening of the through-hole 6 from appearing on the upper floor surface 1, so that the outer shape of the holder 101 is larger than that of the through-hole 6. .

100 Working room (clean room)
DESCRIPTION OF SYMBOLS 101 Holder 1 Floor part 3 Manufacturing apparatus 4 Underfloor space 6 Through-hole 7a Pipe 7b Wiring 8b Connecting member 11a, 11b Slit 12 Protrusion

Claims (5)

For a device installed in a double floor working room whose upper floor surface is supported by the base floor surface, a connecting member for connecting to the device extends from the under floor space through a through hole provided in the upper floor surface. In the holding method for holding the attached flexible piping or wiring on the upper floor surface,
A plate-like holder having a larger outer shape than the through-hole bent in the middle of a length in which a slit having a width larger than the diameter of the pipe or wiring and smaller than the diameter of the coupling member reaches the outer edge from the center , Insert the slit from the outer edge side of the coupling member,
A flexible piping or wiring holding method, wherein the holding member is placed on the through hole in a state where the coupling member is hooked on the slit.
For a device installed in a double floor working room whose upper floor surface is supported by the base floor surface, a connecting member for connecting to the device extends from the under floor space through a through hole provided in the upper floor surface. In the holder that holds on the upper floor when the attached flexible piping or wiring is removed,
A slit having a larger outer shape than the through hole and extending from the center to the outer edge is provided, and the slit has a width larger than the diameter of the pipe or wiring and smaller than the diameter of the coupling member, A holder characterized by being bent in the middle of the length reaching the outer edge.
The holder according to claim 2, wherein the holder is a disc.
At least two protrusions are attached to the lower surface of the holder, and these protrusions are arranged in relation to the diameter of the opening of the through hole, and are inserted into the opening at the same time in use. The holder according to claim 2.
  4. The holder according to claim 3, wherein the diameter of the disc is larger than twice the diameter of the through hole.