JP2007255946A - Glove for glove box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glove for a glove box for preventing breakage even when it carelessly comes into contact with a keen or sharp thing, by increasing the mechanical strength of the glove used for work with the glove box. <P>SOLUTION: As a film material of the glove 21, a mixture with polymer latex or thermoplastic elastomer such as polyester is used. The glove 21 can be divided into a plurality of sections such as a finger section 22, an arm section 23, and a cuff section 24, and the operation of the section corresponding to the film material of each section can be performed smoothly. A reinforcing body 6 made of reinforcing material obtained by knitting aramid fiber or the like in the shape of the finger section 22 or arm section 23 is impregnated with the film material to further increase the mechanical strength. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a glove for a glove box for handling various devices and the like in a glove box containing a radioactive substance or a toxic gas that adversely affects a human body in a nuclear facility.

  Hazardous substances that adversely affect the human body, such as radioactive substances and toxic gases, must be handled in a closed space so that workers do not touch these hazardous substance environments. A glove box is a device that closes this kind of dangerous substance and allows it to be handled from the outside. FIG. 7 shows a schematic structure of a glove box 1 used in a nuclear facility that handles radioactive substances. Various handling devices 2 for radioactive substances are arranged inside the glove box 1, and a glove port 3 for the driver P to operate these handling devices 2 is provided on the front wall. . The front wall is made of a material that allows the inside to be visually confirmed. In addition, the side wall of the glove box 1 is large for supplying necessary tools and devices in the glove box 1 to the glove box 1 and for taking out unnecessary parts and devices in the glove box 1. Port 4 is provided. In addition, ventilation in the glove box 1 is performed by the air supply facility 5 and the exhaust facility 6, and the exhaust is purified and the radioactive material is surely removed. The inside of the glove box 1 is maintained at a negative pressure so that the internal environmental air does not leak to the outside. Also, an alarm panel 7 is provided so that an alarm is issued when an abnormality occurs.

  FIG. 6 is a cross-sectional view showing the structure of the glow port 3. The glove port 3 is a resin cylinder fixed to the front wall of the glove box 1, and an inner ring 11 is inserted into the inner peripheral surface thereof. Two ring grooves 11a are provided on the outer surface of the inner ring 11 on the front side from the center to the glove box 1 side, and a cuff mounting portion 11b is formed behind the ring groove 11a. ing. The ring grooves 11a are covered with rubber gloves 12, and the cuffs 12a of the gloves 12 are in contact with the cuff mounting portions 11b and are fixed by O-rings 13 that engage with the ring grooves 11a. . Further, an appropriate number of packing grooves 11c are formed at the rear of the cuff mounting portion 11b. A packing 14 is accommodated in the packing groove 11c and is brought into close contact with the inner peripheral surface of the globe port 3, so that the globe port 3 and the inner ring are in contact with each other. The space between 11 is sealed. A locking groove 11d is formed on the inner side surface of the inner ring 11 at the rear end. On the other hand, a locking groove 10 a is formed at the rear end of the outer surface of the globe port 3. A fixed ring 15 having engaging portions 15a and 15b that are engaged with the engaging groove 11d and the engaging groove 10a is provided. That is, the fixed ring 15 is annular, and the cross section cut along the plane including the annular axis is substantially U-shaped, and one leg portion of the U-shape is elongated, and the distal ends of these leg portions The engaging portions 15a and 15b are formed on the top. Therefore, when the fixed ring 15 is engaged with the globe port 3 and the inner ring 11 by the engaging portions 15a and 15b, the inner ring 11 is connected to the globe port 3 and the inner ring 11 is detached from the globe port 3. It becomes a state that does not.

  As shown in FIG. 7, the driver P inserts the fingertip to the upper arm into the glove 12 attached to the glove port 3 and operates the internal handling device 2 and the like. The adjacent glove port 3 is equipped with right-hand and left-hand gloves 12 so that the driver P can perform a desired operation using both hands.

  The globe 12 is manufactured by a so-called immersion molding method in which a mold having the shape of the globe 12 is immersed in a polymer latex compound such as neoprene rubber or chlorosulfonated polyethylene rubber. For example, Patent Document 1 discloses, as a variable color type globe, three layers including a transparent or translucent backup material layer positioned on the surface, a variable color layer that changes color due to pH change, and a constituent material layer of the globe body. A structure in which these three layers are sequentially formed by an immersion molding method is disclosed.

  In Patent Document 2, a vinylidene chloride-based resin layer is formed on a glove made of rubber such as butyl rubber and neoprene rubber and plastic films such as vinyl chloride and polyethylene, which are generally used. An improved glove is disclosed. And, as a method of forming this vinylidene chloride-based resin layer, a method of laminating a resin layer containing vinylidene chloride resin as a component by adhesion, thermocompression bonding, or a method of applying an emulsion containing vinylidene chloride resin as a component Etc. are disclosed.

Japanese Patent Publication No.8-30759 No. 7-39576

  The manufacturing of the glove before the formation of the variable color glove disclosed in Patent Document 1 and the vinylidene chloride-based resin layer disclosed in Patent Document 2 is performed by an immersion molding method. There is. In order to manufacture gloves, a pot made of earthenware or the like formed in a shape from the upper arm to fingers of a human body and a material tank for storing materials such as a polymer latex compound for immersing the mold are required. Since this material tank requires a depth that can sufficiently accommodate the length from the upper arm to the fingers, a depth of about 1000 mm is required, which makes a large tank.

  Since the mold is immersed in the material tank and pulled up several times, a plurality of layers formed of the material are superimposed on the surface of the mold to form a glove. It becomes the thing of almost equal wall thickness. By the way, the movement from the upper arm to the fingers has a large number of joints, and a complex operation is possible. On the other hand, in the case of a glove having a substantially equal thickness over the entire region, the strength is equal in all parts, and there is a case where the operation of each part cannot be sufficiently handled. For example, when the handling device 2 is adjusted or operated by holding a screwdriver or the like, the strength of the portion corresponding to the upper arm is large, which hinders the operation, and the movement of the arm and fingers are not performed smoothly. There is a risk that the glove will be inadvertently stuck at the tip of the screwdriver.

  In addition, the cuff 12a is also formed by the immersion molding method, but it is formed by overlapping the material layer further than the glove body, and the layer cannot be uniformly overlapped. May not be uniform and may have a circular shape with a distorted cross-sectional shape.

  Therefore, the first object of the present invention is to increase the mechanical strength so that it is not easily pierced even when it comes into contact with a sharp portion such as a screwdriver, etc. An object of the present invention is to provide a glove for a glove box that is more reliably prevented from being cleaved by a sharp object.

  A second object of the present invention is to provide a glove for a glove box that can reduce the size of a material tank when molded by an immersion molding method.

  A third object of the present invention is to provide a glove for a glove box in which the cross-sectional shape of the cuff is made uniform so that the pressing force can be easily adjusted when the cuff is crushed.

  As a technical means for achieving the first object, a glove for a glove box according to the present invention is a glove in which an operator inserts an arm from the outside of the glove box when working in the glove box. It is characterized by using a mixture of thermoplastic elastomer or polymer latex as the glove film material.

  For example, a glove is molded using a mixture of a thermoplastic elastomer or polymer latex such as polyester, polyamide, polyurethane, styrene, olefin, and vinyl chloride as a film material. And with this material, a glove is molded by a method such as immersion molding, vacuum casting, blow molding, rotational molding, injection molding, or extrusion molding. Among these molding methods, an optimum one is selected according to the film material made of a mixture with a thermoplastic elastomer or a polymer latex.

  Further, the glove for the glove box according to the invention of claim 2 is a glove main body molded into a glove shape by a reinforcing material in a glove in which an operator inserts an arm from the outside of the glove box when working in the glove box. It is characterized by being impregnated with a coating material.

  That is, the coating material is reinforced by the reinforcing material. As the reinforcing material, high-strength fiber materials such as aramid fiber, ultrahigh molecular weight polyethylene fiber, polyarylate fiber, and PBO fiber, general-purpose fiber materials such as polyester fiber and nylon fiber, and other metal fiber materials are used. These reinforcing materials are knitted into a cloth shape, or formed into a glove-shaped body having a glove shape as a non-woven fabric, and impregnated or coated with a covering material.

  The glove for a glove box according to the invention of claim 3 is a glove in which an operator inserts an arm from the outside of the glove box when working in the glove box, and the reinforcing material is shortened and dispersed in the coating material. It is characterized by being molded by a synthetic material mixed in.

  That is, a reinforcing material shortened to a short fiber is dispersed in a film material of a mixture with a thermoplastic elastomer or a polymer latex to produce a synthetic material, and a glove is molded from this synthetic material. As the molding method, a molding method corresponding to the properties of the synthetic material is selected by the above-described methods such as immersion molding, vacuum casting, blow molding, rotational molding, injection molding, and extrusion molding.

  The glove for a glove box according to the invention of claim 4 is intended to achieve the second object, and is divided into a plurality of parts corresponding to a desired part from the upper arm to the fingers and divided. Each part is in a state suitable for smoothly performing the operation of the corresponding part.

  A glove is formed by dividing each part from the upper arm to the fingers and joining the divided and molded parts. At this time, the part corresponding to each part is molded under conditions according to the movement of each part. For example, the movement of each part can be controlled by thinning the thickness, changing the material, or changing the molding method between the fingers requiring fine movement and the upper arm requiring rough movement. Make it smooth. In order to connect the divided parts, an ultrasonic bonding method, a laser fusion method, a sequential immersion molding method, or the like is used.

  In the glove for a glove box according to the invention of claim 5, in order to achieve the third object, the cuff part including at least the cuff is formed separately from the other part, and the cuff part is formed as the other part. It is characterized in that it is bonded to.

  It is difficult to form the material layer evenly when the cuff is immersed and molded. Therefore, the cuff part including the cuff is formed by a method other than the immersion molding method, and the formed cuff part and the part corresponding to the upper arm part are joined to complete the glove. In order to mold the cuff, for example, the cuff is bulged into a strip-shaped material made of plastic having a thickness suitable for mounting on the inner ring and having a smooth inner surface, and both ends of the strip-shaped material are formed. Are cuffed to form a cuff, which is joined by a laser fusion method or the like. Or it can also join by a sequential immersion method.

  According to the glove for a glove box according to the present invention, since it is based on a mixture material with a thermoplastic elastomer or a polymer latex, the strength of the film is larger than that of a conventional polymer latex or the like, and a tip such as a screwdriver is used. No sharp or sharp object is easily pierced, and the glove is not damaged as much as possible. Moreover, since it has flexibility, the smoothness of the work with the glove is not impaired.

  Further, according to the glove for a glove box according to the invention of claim 2, the reinforcing material is not torn even if a sharp material such as a screwdriver is passed through or a sharp object is rubbed, and the glove is damaged. Can be reliably prevented.

  Further, according to the glove for the glove box according to the invention of claim 3, since the reinforcing material is mixed in the film material, the sharp tip is not pierced or sharpened, and the glove box Damage can be reliably prevented.

  According to the glove for a glove box according to the invention of claim 4, the operation of each part from the upper arm to the finger can be smoothly moved without being hindered. Therefore, it is possible to prevent a finger or the like from being carelessly pierced or scraped with a sharp or sharp object.

  Further, according to the glove for the glove box according to the invention of claim 5, the cross-sectional shape can be uniformly molded by producing the cuff by a molding method other than the immersion molding method. For this reason, when this cuff is crushed and airtightness is ensured, this cuff can be uniformly crushed without requiring a large force, and airtightness can be reliably ensured by the cuff.

  Hereinafter, the glove for a glove box according to the present invention will be specifically described based on the illustrated preferred embodiment.

  In the first embodiment shown in FIG. 1, the glove 21 is attached to the above-described glove port including a finger part 22 that covers a finger, an arm part 23 that covers a forearm and an upper arm, and a cuff 24a (see FIG. 3). The structure in the case of being divided and molded into three parts with a cuff part 24 to be a part to be formed is shown. Each of the finger part 22, the arm part 23, and the cuff part 24 is formed by combining materials having different elongation rates so that the finger and arm can move smoothly. It is molded to be in an appropriate state for mounting on the port.

  These finger part 22, arm part 23 and cuff part 24 include, for example, polymer elastomers such as neoprene and chlorosulfonated polyethylene rubber, as well as thermoplastic elastomers or polymer latexes such as polyester, polyamide and polyurethane. Is used as a coating material. This film material is formed into a finger or arm shape by a molding method such as immersion molding, vacuum casting, blow molding, rotational molding, injection molding, or extrusion molding. A coating material that does not hinder the smooth movement of fingers and arms is selected, and an appropriate molding method is selected according to the selected type.

  FIG. 2 shows a molding method by the immersion molding method. The arm part 23 is formed by immersing the arm part mold 23a, which is a mold for molding the arm part 23, in the film material tank 23b and growing a material layer on the surface of the arm part mold 23a. A finger part mold 22a formed in the shape of the finger part 22 is joined to the arm part 23, and the finger part mold 22a is immersed in the material tank 22b. At this time, when the film material of the finger part 22 and the film material of the arm part 23 are made different from each other, the corresponding material tanks 22b and 23b are used. When the finger part mold 22a is immersed in the material tank 22a, the finger part 22 is joined to the arm part 23 to be integrally formed. Similarly, the cuff part 24 is connected to a cuff part mold (not shown) that forms the cuff part 24 and connected to the arm part mold 23a, and is immersed in a material tank that forms the cuff part 24 to form the cuff part 24. At the same time, it can be joined to the arm 23.

  Alternatively, as shown in FIG. 3, the cuff portion 24 is molded by a molding method that can be formed with relatively high dimensional accuracy, such as injection molding or extrusion molding, instead of the immersion molding method. FIG. 3 (c) shows a cuff 24a in the cuff 24, an O-ring 24b that replaces the O-ring 13 used when the glove 21 is attached to the inner ring 11 shown in FIG. 6, and a stopper 24c. Are integrally formed. As shown in FIG. 3 (a), the cuff 24a, the O-ring part 24b, and the stopper part 24c are formed of a synthetic resin to form a material plate 25 formed in a strip shape. The parts are joined together by heat welding or the like to form a cuff part 24. As shown in FIG. 3D, the cuff part 24 is joined to the arm part 23 by heat welding or the like.

  In the above-described molding method, when the finger part 22 is joined to the arm part 23, the finger part 22 has been described as a soaking molding method. However, similar to the joining of the cuff part 24, the finger part 22 is heated and welded. It can also be joined to the arm 23. As the heat welding method, an ultrasonic bonding method, a laser fusion method, or the like can be used, and a method capable of obtaining the same strength as the coating material is preferable.

  The second embodiment shown in FIG. 4 relates to a structure in which the mechanical strength of the globe is further improved. A finger part mold 22a for molding the finger part 22 shown in FIG. 4 (a) is covered with a reinforcing body 26 knitted with fibers of a reinforcing material shown in FIG. 4 (b). As the reinforcing material, high-strength fiber materials such as aramid fibers, ultrahigh molecular weight polyethylene fibers, polyarylate fibers, and PBO fibers, or general-purpose fiber materials such as polyester fibers and nylon fibers, and other metal fibers can be used. These fibers are used as a cloth or a non-woven fabric. The finger mold 22a covered with the reinforcing body 26 is immersed in the material tank of the film material to impregnate the film material. In addition, it is preferable to use the mixture with the thermoplastic elastomer or polymer latex mentioned above as a film | membrane material. Then, the formed finger portion 22 is joined to the separately molded arm portion 23 by heating and welding. Alternatively, as described above, the finger part mold 22a covered with the reinforcing body 26 is connected to the tip of the arm part mold 23a having the arm part 23 formed on the surface, and the finger part mold 22a is connected to the material tank. The finger part 22 and the arm part 23 can also be joined by being immersed. Further, when the arm portion 23 is formed, the arm portion mold 23a can be formed by covering the reinforcing material with a reinforcing body and impregnating the coating material.

  Further, as shown in FIG. 5, a glove mold 21a in which a finger mold 22a and an arm mold 23a are integrated with a reinforcing body 26a for the finger section 22 and a reinforcing body 26b for the arm section 23, respectively. It is also possible to form the main body of the glove consisting of the reinforcing body 6 and immerse the glove mold 21a in the material tank and mold it. In this case, as shown in FIG. 5 (a), the reinforcing body 26a corresponding to the finger part 22 and the reinforcing body 26b corresponding to the arm part 23 are made of reinforcing materials capable of smoothly operating the respective parts. preferable. As shown in FIG. 5B, the molded globe 21 has a structure in which a reinforcing body 26 is disposed on the whole. Then, the cuff 24 is joined to the globe 21 by heat welding or the like.

  The reinforcing material has been described as being knitted in the shape of the finger part 22 and the arm part 23, but this reinforcing material is shortened to be mixed with the film material to form a synthetic material, and this synthetic material is used for immersion molding. Alternatively, the globe 21 can be molded by a method such as vacuum casting, blow molding, rotational molding, injection molding, or extrusion molding. Also in this case, each part such as the finger part 22 and the arm part 23, the cuff part 24 and the like can be divided and molded to join each other, or the finger part 22 and the arm part 23 are integrally molded, A bonded structure can also be used.

  By the way, in the existing latex glove 12 such as neoprene rubber, as described above, there is a possibility that the tip of a screwdriver may pierce or be cleaved by a sharp object. For this reason, when a tool such as a screwdriver is required with the existing glove 12, a leather glove may be further put on the latex glove 12 to double the work. When the gloves 12 and leather gloves are worn on top of each other, the weight is increased and the workability may be reduced due to tension. As described above, when the latex glove 12 is further covered with another glove, the glove 21 formed by combining the reinforcing body 26 with the polymer compound or the like can also be used. In other words, when working with a tool or the like, the glove 21 is further covered with the latex glove 12. In this case, the globe 21 may be composed only of the finger part 22.

  For example, the glove 21 is molded by immersing and coating a polymer latex compound such as neoprene rubber or chlorosulfonated polyethylene rubber or other synthetic resin on the reinforcing body 26 made of a super fiber reinforced material such as aramid fiber. . Alternatively, the reinforcing material is shortened into a synthetic material mixed into the coating material, and the glove 21 is molded by a method such as immersion molding, blow molding, rotational molding, injection molding, or extrusion molding using this synthetic material. You can also. Even in this case, only the finger part 22 of the glove 21 may be covered with the latex glove 12.

  Alternatively, it can be formed into a glove-like glove 21 by knitting it into a cloth shape using super fibers coated with other resins such as neoprene. By coating the resin or the like, the unraveling of the super fiber is prevented, and when the glove 12 is covered, the glove 21 can slide well and can be covered smoothly.

  Since the glove 12 provided in the existing glove box 1 is not replaced until it is deteriorated or damaged, the glove 21 can be covered with the existing glove 12 to prevent the existing glove 12 from being damaged. Thus, the lifetime can be extended.

  According to the glove for a glove box according to the present invention, the mechanical strength is increased as compared with a glove formed by immersing a conventional polymer latex, and it is not inadvertently damaged by a sharp or sharp object, In particular, a glove impregnated with a coating material using a reinforcing material as a reinforcing body is not damaged, and can contribute to improvement of workability in the glove box. In addition, by dividing and forming the globe, the material tank can be downsized, the manufacturing equipment can be downsized, and the cost of the globe can be reduced.

It is a top view of the glove explaining 1st Embodiment of the glove for glove boxes concerning this invention. It is a figure explaining the shaping | molding procedure of 1st Embodiment of the glove for glove boxes which concerns on this invention. It is a figure explaining the formation procedure of the cuff part of the glove for glove boxes concerning this invention. It is a figure explaining 2nd Embodiment of the glove for glove boxes concerning this invention, and is a figure explaining the formation procedure of the finger part of this glove. It is a figure explaining 2nd Embodiment of the glove for glove boxes concerning this invention, and is a figure explaining the procedure in the case of integrally forming a finger part and an arm part. It is sectional drawing explaining the structure of a glove port. It is a perspective view explaining the schematic structure of a glove box.

Explanation of symbols

21 Globe
22 Finger
22a Finger type
22b Material tank
23 arms
23a Arm type
23b Material tank
24 Cuff
26 Reinforcing body

Claims (5)

When working in the glove box, in the glove where the operator inserts his arm from the outside of the glove box,
A glove for a glove box, wherein a mixture of a thermoplastic elastomer or a polymer latex is used for the glove film material. When working in the glove box, in the glove where the operator inserts his arm from the outside of the glove box,
A glove for a glove box, characterized in that a glove main body molded into a glove shape with a reinforcing material is impregnated with or coated with a film material. When working in the glove box, in the glove where the operator inserts his arm from the outside of the glove box,
A glove for a glove box, characterized by being formed of a synthetic material in which a reinforcing material is shortened and dispersed in a coating material. From the upper arm to fingers, it is divided into a plurality of parts corresponding to the desired part,
The glove for a glove box according to any one of claims 1 to 3, wherein each of the divided parts is in a state suitable for smoothly performing the operation of the corresponding part.   The glove box according to any one of claims 1 to 4, wherein a cuff part including at least a cuff is formed separately from another part, and the cuff part is joined to the other part. For gloves.

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