JP2005262399A - Glove box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To replace a glove port for constituting a glove box by relatively easy work. <P>SOLUTION: The glove port 5 is composed of a cylindrical part 17 insertable into an opening 4 of a panel 3. By arranging a screw 19 for threadedly engaging an inside flange 20 having an outer diameter larger than the opening 4 with the outer periphery of this cylindrical part 17 and a screw 23 having an outer diameter larger than the opening 4 and threadedly engaging with an outside flange 24 for sandwiching the panel 3 with the inside flange 20, the cylindrical part 17 of the glove port 5 is inserted into the opening 4 of the panel 3 in a state of removing the inside flange 20, and can be installed by threadedly engaging the inside flange 20 from the inside of the glove box. Thus, the glove port 5 can be replaced by relatively easy work. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a glove box.

  For example, when handling contaminants such as radioactive substances, in order to ensure the safety of workers, the contaminants are handled inside a glove box maintained at a negative pressure. The work in the box is performed through a glove attached to a cylindrical glove port provided at the opening of the panel constituting the glove box.

  This glove port has, for example, a flange positioned inside the opening of the panel of the glove box, and by fastening a ring-shaped holding flange to the flange from the outside of the glove box with a set screw, the flange and the holding flange The panel is sandwiched and attached (for example, see Patent Document 1).

JP 2004-025366 A (refer to FIG. 6, page 2-3)

  By the way, the globe port may be damaged or may be changed to a different type, and it is convenient if it can be replaced. However, the glove port of Patent Document 1 is attached from the inside of the glove box. Therefore, when replacing the glove port, it is necessary to put a new glove port in the glove box so that it will not be contaminated, and to move it to the replacement position by handing it from the surrounding glove port. The replacement work is difficult.

  An object of the present invention is to enable replacement of a glove port with a relatively easy operation.

  In order to solve the above problems, the present invention provides a glove box having a cylindrical glove port attached to an opening formed in the panel constituting the box, and the glove is attached to the glove port. It is composed of a cylindrical part that can be inserted into the formed opening, and a screw that screws an inner flange having an outer diameter larger than the opening of the glove box panel on the outer periphery of the cylindrical part, and an outer part that is larger than the opening of the glove box panel A screw having a diameter and having an inner flange and an outer flange that sandwiches the panel are screwed together.

  To replace the glove port, first seal the inner surface of the new glove port with only the outer flange screwed in with an airtight plug, and align the end of the cylinder part of the new glove port with the end of the cylinder part of the existing glove port. And seal with tape. Furthermore, the end of the opening of the panel of the glove box and the outer periphery of the new glove port are connected and sealed by a cylindrical sheet having no air permeability. Next, the existing glove port is removed from the panel of the glove box and is temporarily discarded in the glove box. At this time, while pushing the cylindrical sheet into the glove box, a new glove port is inserted into the opening of the panel, and the inner flange that has been preloaded in the glove box is screwed into the cylindrical part of the glove port, Hold the panel with the inner and outer flanges and fix it. According to this, it is not necessary to put a hand from the surrounding glove port and move it to the replacement position by handing while taking a measure to prevent contamination by putting the new glove port in the glove box. Therefore, the globe port can be replaced with a relatively easy operation.

  By the way, as a method of attaching the globe to the globe port, there is a method of attaching the globe to the globe port via a cylindrical inner ring as in Patent Document 1. The inner ring is provided with a plurality of O-rings made of an elastic material that maintains airtightness with the inner peripheral surface of the glove port on the outer periphery of the cylindrical portion, and the base end of the glove is formed on the reduced diameter portion formed at the distal end portion of the cylindrical portion. It is put on and is fastened by O-ring.

  In this case, as the O-ring for fastening the glove to the inner ring, for example, a plurality of expensive O-rings with a built-in spring to enhance the tightening force are used so that the glove does not come off from the inner ring during work. Therefore, in the present invention, in order to reduce the number of O-rings, the glove is covered and fixed to the reduced diameter portion of the inner ring via an adhesive layer. Thereby, the number of O-rings which fasten the glove to the inner ring can be reduced, and the cost can be suppressed.

  In general, since the globe is formed of, for example, rubber or vinyl, it may be damaged if it hits a sharp point. In particular, when attaching or detaching bolts or nuts in the glove box, or when pulling out the glove from the glove port, the thread may come into contact with the exposed bolt and break. Accordingly, in the present invention, a protective part that is formed in a spiral shape and extends in a natural state and covers the screw thread of the bolt is attached to the bolt that exposes the screw thread provided within the glove box inside and outside the glove box. . According to this, it is possible to prevent the glove from being broken by the screw thread of the bolt.

  According to the present invention, the globe port can be exchanged.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of an embodiment of the glove port of the present invention, and FIG. 2 is a cross-sectional view illustrating a procedure for replacing the glove port of the present invention. FIG. 3 is a perspective view for explaining the glove box of the present invention.

  As shown in FIG. 3, the glove box of the present embodiment includes an airtight box 1. The box 1 has a plurality of openings formed in at least one of the front surfaces, and a transparent synthetic resin panel 3 is fitted in the openings. The panel 3 is formed with a circular opening, and a cylindrical glove port 5 is provided in the circular opening. A glove 7 is attached to the glove port 5. The box 1 is surrounded by a partition wall 9. An opening 11 is formed at a position corresponding to the globe port 5 of the partition wall 9. Around the edge of the opening 11, for example, stud bolts 13 are erected at three places. The opening 11 can be closed with a lid 15. As shown in FIG. 1, the periphery of the lid 15 is provided with an ear 16 formed with a hole 14 through which the stud bolt 13 is inserted. The ear 16 is fastened to the stud bolt 13 with a nut 18 and fixed. It has come to be. In addition, the unused globe 7 is pulled out from the opening 11 and held outside the partition wall 9. The partition wall 9 is provided with a peep window 10 so that an operator can see inside the glove box.

  As shown in FIG. 1, the globe port 5 includes a cylindrical portion 17 that can be inserted into a circular opening 4 formed in the panel 3. On the outer periphery of the cylindrical portion 17, an enlarged diameter portion is formed at an intermediate position in the axial direction, and a reduced diameter portion is formed on the inside of the glove box, that is, the front end side and on the outer side of the glove box, that is, the rear end side. Has been. A screw 19 is formed in the reduced diameter portion on the distal end side. The screw 19 is screwed with an annular inner flange 20 having an outer diameter larger than the opening 4 of the panel 3. An annular seal member 21 is provided between the rear end side of the inner flange 20 and the panel 3. The seal member 21 has an inner diameter that fits the screw 19 and an outer diameter that is larger than the opening 4 of the panel 3. On the other hand, a screw 23 is formed on the rear end side of the enlarged diameter portion. The screw 23 is screwed with an annular outer flange 24 having an outer diameter larger than that of the opening 4. An annular seal member 25 is provided between the front end side of the outer flange 24 and the panel 3. The seal member 25 has an inner diameter that fits the screw 23 and an outer diameter that is larger than the opening 4 of the panel 3.

  The procedure for replacing the globe port 5 configured as described above will be described. As shown in FIG. 2, an existing glove port 27 to be replaced is attached to the circular opening 4 of the panel 3 of the glove box. The globe port 27 is fitted with a bottomed cylindrical airtight stopper 29.

  As a procedure for replacing the glove port, first, the outer flange 24 and the seal member 25 are attached to the new glove port 5 to be replaced, and the airtight plug 29 is fitted into the cylindrical portion 17 of the new glove port 5. The airtight stopper 29 is provided with a plurality of O-rings 31 made of an elastic material that keeps airtightness with the inner peripheral surface of the globe port on the outer periphery of the cylindrical portion. Next, the tip of the cylindrical portion 17 of the new globe port 5 is brought into contact with the rear end of the existing globe port 27, and the ends of both are aligned and sealed with the tape 33. Further, the edge of the opening 4 of the panel 3 of the glove box and the outer periphery of the new glove port 5, for example, an enlarged diameter portion are connected by a cylindrical sheet 35 having no air permeability and sealed. As a result, even if the existing glove port 27 is removed from the opening 4 of the panel 3, the contaminated atmosphere in the glove box remains in the seat and therefore does not leak to the outside. Then, the existing glove port 27 is removed from the panel 3 and pushed into the glove box together with the seat 35 to be a disposal object. At this time, a new globe port 5 is inserted into the opening 4 of the panel 3. The inner flange 20 and the seal member 21 carried into the glove box are attached to the screw 19 of the new glove port 5 inserted into the glove box, and the panel 3 is held between the inner flange 20 and the outer flange 24. Fix it.

  Thus, according to this embodiment, since the glove port 5 can be attached from the outside of the glove box, the glove port 5 surrounding the glove port 5 is put into the glove box while taking some measures to prevent contamination. There is no need to insert a hand from the port and move it to the replacement position by hand. Therefore, the globe port can be replaced with a relatively easy operation.

  As shown in FIG. 1, the glove 7 used in the glove box is formed of rubber or vinyl, for example, and is attached to the glove port 5 via a cylindrical inner ring 36. The inner ring 36 is made of, for example, resin, and a plurality of O-rings 37 made of an elastic material that keeps airtightness with the inner peripheral surface of the globe port are mounted on the outer periphery of the cylindrical portion. A reduced diameter portion 39 is formed on the outer periphery of the end of the inner ring 36, that is, the end located inside the glove box. The base end of the globe 7, that is, the hem portion of the globe is covered with the reduced diameter portion 39 and is airtightly fixed via the adhesive layer 41. As the adhesive layer 41, for example, a synthetic resin adhesive is used. Further, the base end of the globe 7 is fastened by one O-ring 43. The O-ring 43 is provided at a position where a thick portion 44 called a bead at the base end of the globe 7 is hooked.

  Thus, by setting it as the structure which adhere | attaches the glove | globe 7 to the inner ring 36, the number of the O-rings 43 which fastened the glove 7 to the inner ring 36 can be reduced. For example, in order to prevent the globe 7 from being detached from the inner ring 36 at the time of work, an expensive one having a built-in spring to enhance the tightening force is used as the O-ring 43. The cost can be reduced by reducing the number.

  Further, the inner ring 36 needs to have a width for fastening the O-ring 43, but by reducing the number of O-rings 43, the width of the inner ring 36 is shortened, that is, the total length of the inner ring 36 is shortened. It is possible to reduce the volume of objects to be discarded once disposed in the glove box.

  As described above, according to the present embodiment, the cost of the inner ring 36 can be reduced, and the volume of waste to be discarded in the glove box can be reduced. In addition, the configuration in which the glove is attached to the inner ring via the adhesive layer has been described with reference to an example applied to the glove port 5 having the configuration in FIG. The present invention can be applied to a type of glove port in which the inner flange of the glove port is fixed. In this embodiment, the glove is attached to the inner ring 36 via the adhesive layer 41 and fastened by the O-ring 43. However, if the adhesive force of the adhesive layer 41 is strong and reliable, the The ring 43 can be omitted.

  Moreover, as shown in FIG. 4, the protection component 50 is provided in the edge of the opening 11 of the partition 9 surrounding a glove box. As shown in FIG. 5, the protective component 50 is formed of an elastic material such as metal or resin, which is formed in a spiral shape and extends in a natural state to cover the thread of the stud bolt 13.

  According to such a structure, when the ear | edge part 16 of the lid | cover 15 is fastened by the nut 18 with the stud bolt 13, the protective component 50 is compressed and the thread of the stud bolt 13 is exposed. On the other hand, when the lid 15 is removed, the protective component 50 extends to cover the thread of the stud bolt 13. Thus, according to this embodiment, even if the nut 18 attached to the stud bolt 13 is removed, the glove 7 can be prevented from coming into contact with the thread of the stud bolt 13 and being broken.

  The protective component 50 is formed in a spiral shape with a temporary reduced diameter from the surface of the partition wall 9 to the tip of the stud bolt 13. If comprised in this way, since it will become flat form when the protection component 50 shrink | contracts, it is compact and preferable. Moreover, the protective component 50 can also be formed in a spiral shape having a diameter continuously increased from the surface of the partition wall 9 to the tip of the stud bolt 13. In this case, since the minimum diameter of the helix is located on the surface side of the partition wall 9, if the minimum diameter is set to a size that fits the thread of the stud bolt 13, the protective component 50 can be attached by simply screwing into the stud bolt 13. Is preferable.

  In the present embodiment, the example in which the protective component for covering the bolt is provided on the stud bolt 13 of the partition wall 9 surrounding the glove box has been described. The present invention can be applied to bolts within the reach of the globe, such as bolts provided and bolts provided inside and outside the glove box.

It is sectional drawing of one Embodiment of the glove port of this invention. It is sectional drawing explaining the exchange procedure of the glove port of this invention. It is a perspective view explaining the glove box of this invention. It is sectional drawing explaining the protection component of this invention. It is a figure explaining the expansion | extension state of the protection component of this invention.

Explanation of symbols

3 Panel 4, 11 Open 5, 27 Glove port 7 Glove 9 Bulkhead 13 Stud bolt 15 Lid 17 Cylindrical portion 19, 23 Screw 20 Inner flange 24 Outer flange 21, 25 Seal member 39 Reduced diameter portion 41 Adhesive layer 37, 43 Oh Ring 50 protective parts

Claims (3)

In a glove box in which a cylindrical glove port for attaching a glove is attached to an opening formed in a panel constituting the box,
The globe port has a screw for screwing an inner flange having an outer diameter larger than the opening on an outer periphery of a cylindrical portion that can be inserted into the opening formed in the panel, and an outer diameter larger than the opening. A glove box having a screw with which an outer flange for sandwiching the panel with a flange is screwed.   The glove is attached to the glove port via a cylindrical inner ring, and the inner ring is made of an elastic material made of an elastic material that maintains an airtightness between the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the glove port. The glove box according to claim 1, wherein a plurality of rings are mounted, and a base end of the glove is attached to a reduced diameter portion formed at a distal end portion of the cylindrical portion via an adhesive layer. . A bolt that exposes the thread provided in the glove box inside and outside the glove box is provided with a protective part that is spirally formed and extends in a natural state to cover the thread of the bolt. The glove box according to claim 1 or 2.

Images