JP5009687B2 - Covering material heat sealer for pipe members - Google Patents

Description

  The present invention is, for example, a fluid used for joining two heat insulating materials separated on both sides in the longitudinal direction of an inner pipe in a fluid pipe with a heat insulating material such as an air conditioning pipe whose outer surface is covered with a heat insulating material. The present invention relates to a pipe member covering material heat fusion tool such as a heat insulating material heat fusion tool for pipe.

Conventionally, in an air conditioner, when the temperature of the refrigerant passing through the pipe changes more rapidly than the ambient temperature during operation, condensation may occur on the outer surface of the pipe. In order to prevent this dew condensation, a pipe covered with a cylindrical heat insulating material is constructed in accordance with the structure of the building. During the construction, the tubes may be connected to each other, and the heat insulating materials are also joined at the time of the connection. For example, in the following Patent Document 1, a seam sheet is wound around a seam between heat insulating waterproof sheets. In general, in a fluid pipe with a heat insulating material having dew condensation prevention means, as shown in FIG. 10, the outer surface 86a of the inner pipe 86 is covered with a heat insulating material 85 made of foamed polyethylene or the like, and on both sides in the longitudinal direction of the inner pipe 86. An adhesive tape 89 is wound around the outer periphery of the opposite end faces 85a at the joint 87 between the end faces 85a of the two heat insulating materials 85 that are divided.
JP 2001-50481 A

  However, when the heat insulating material 85 contracts due to a construction error or a change over time after the construction, the adhesive tape 89 is peeled off, and a gap is formed in the joint 87 between the two heat insulating materials 85, and the gap between the inner pipe 86 and the outer space 86 is formed. The surface 86a may be exposed and condensation may occur there. If the condensed water leaked into the building, it caused water leakage.

  In view of this, the present applicant, in an application filed on April 6, 2006 (Japanese Patent Application No. 2006-105376), heats the opposite end surfaces of the two heat insulating materials divided on both sides in the longitudinal direction of the inner pipe by means of a heating member. The present invention provides a heat insulating material heat fusion tool for a fluid pipe that is used when a seam joined by bonding is provided.

  In addition to such a heat insulation material heat fusion tool for fluid pipes, the present invention provides various heat insulation materials heat fusion equipment for fluid pipes used when joining both heat insulation materials divided on both sides in the longitudinal direction of the inner pipe, Of the coating materials covering the outer surface of the inner pipe of the pipe member other than the fluid pipe, various types of coating materials for the pipe member used for bonding between the two coating materials divided on both sides in the longitudinal direction of the inner pipe An object of the present invention is to improve the usability of the tube member covering material heat-sealing tool by improving the dressing tool so that it can be used as a holder and the heating member can be changed to various types.

The present invention will be described with reference to the drawings of the following embodiments (the first embodiment shown in FIGS. 1 to 9 and the second embodiment shown in FIGS. 11 to 12).
The covering material heat-sealing tool for pipe members such as the heat insulating material heat-sealing tool for fluid pipes according to the invention of claim 1 corresponds to the first and second embodiments and is configured as follows.

This pipe member covering material heat fusion tool includes a holder 1 provided with both support arms 2 and 12 that can be opened and closed with each other, and heating bodies 24 and 41 provided with heating surfaces 84 and 58 that generate heat by the heating means 59. Both heating members 23 and 40 supported by the connecting arms 25 and 42 are provided. While one connecting arm 25 of the connecting arms 25, 42 of both heating members 23, 40 is detachably supported by the engaging / disengaging portions 11, 39 with respect to one supporting arm 2 of the two supporting arms 2, 12, The other connecting arm 42 of the connecting arms 25, 42 of the heating members 23, 40 is detachably supported by the engaging / disengaging portions 22, 56 with respect to the other supporting arm 12 of the supporting arms 2, 12, As the support arms 2 and 12 are opened and closed, the heating members 24 and 41 of the heating members 23 and 40 are opened and closed together with the connecting arms 25 and 42. In both the heating members 23 and 40, an insertion hole 83 is formed between the heating bodies 24 and 41 in the closed state Q in which both the heating bodies 24 and 41 are closed, and both the heating bodies 24 and 41 in the closed state Q are formed. The heating surface is provided on at least one side surface 84 of both side surfaces 84 formed on the outer periphery of the insertion hole 83 on both sides in the center line direction Y of the insertion hole 83.

In the first aspect of the invention, the connecting arms 25 and 42 of the heating members 23 and 40 can be attached to and detached from the support arms 2 and 12 of the holder 1 by the engaging / disengaging portions 11, 22, 39 and 56. 1 and the heating members 23 and 40 can be changed to various types. Further, when the covering members 85 divided by the covering member pipe members M1 and M2 in which the outer surface 86a of the inner tube 86 is covered with the covering member 85 are joined to each other, the inner tube is closed in the closed state Q of both the heating members 23 and 40. 86 can be fitted into the insertion holes 83 of the heating bodies 24 and 41 so that the side surfaces 84 of the heating bodies 24 and 41 can be applied as heating surfaces to the end surfaces 85a of the covering material 85 to melt the end surfaces 85a.

  In both the heating members 23 and 40 according to the invention of claim 2 (corresponding to the first and second embodiments) based on the invention of claim 1, a heater 59 is provided as a heating means in the heating bodies 24 and 41, and Electrical wiring 60, 64, 68, 70 is connected to the heater 59 through the connecting arms 25, 42 on the heating members 23, 40 side and the supporting arms 2, 12 on the holder 1 side, and the supporting arm 2 on the holder 1 side. , 12 when the connecting arms 25, 42 on the heating members 23, 40 side are attached to or detached from the support arms 2, 12 on the holder 1 side and the connecting arms 25 on the heating members 23, 40 side. , 42 are provided with electrical connection terminals 61, 65, 72, 74 for intermittently connecting the electrical wirings 60, 64 passing through the inside. According to the second aspect of the present invention, since the electrical wirings 60 and 64 for the heater 59 in the heating bodies 24 and 41 can be intermittently connected by the electrical connection terminals 61, 65, 72 and 74, the heating member is also used as the holder 1. Even when 23 and 40 are changed to various types, the heating surfaces 84 and 58 of the heating bodies 24 and 41 can be generated by the heater 59.

In the invention of Claim 3 (corresponding to the first embodiment) based on the invention of Claim 1 or Claim 2, the support arms 2 and 12 on the holder 1 side are supported by the mounting portion 1a so as to be relatively rotatable. The two heating members 24 and 41 are rotated together with the connecting arms 25 and 42 along with the relative rotation of the support arms 2 and 12 and are opened and closed with each other. In both the heating bodies 24 and 41 in the closed state, a split hole 58 for forming the insertion hole 83 in the split edge portion 57 facing each other in the rotation direction R around the rotation center line 13a in the mounting portion 1a. Formed. In invention of Claim 3 , the heating members 23 and 40 can be put together compactly.

In both heating members 23 and 40 according to the invention of claim 4 (corresponding to the second embodiment) based on the invention of any one of claims 1 to 3 , relative rotation is performed at the mounting portion 1 a. It has a pair of heating bodies 24 and 41 that can be supported and can be opened and closed, and in both heating bodies 24 and 41 in the closed state Q, the rotation direction about the rotation center line 13a in the mounting portion 1a. A split hole 58 is formed in the split edge portion 57 facing each other at R, and a heating surface that generates heat by the heating means 59 is provided on the inner surface of the split holes 58 of both the heating bodies 24 and 41. In the invention of claim 4 , the two covering members 85 divided by the covering member pipes M <b> 1 and M <b> 2 in which the outer surface 86 a of the inner tube 86 is covered with the covering member 85 are wound with the tape 88 to join the two covering members 85 together. At this time, in the closed state Q of both the heating members 23 and 40, both the covering materials 85 are fitted into the dividing holes 58 of both the heating bodies 24 and 41, and the inner surface of the dividing holes 58 of both the heating bodies 24 and 41 is used as the heating surface. The inner peripheral surface of the tape 88 can be melted by being applied to the outer peripheral surface.

In the invention of claim 5 (corresponding to the first and second embodiments) based on the invention of any one of claims 1 to 4 , of the two support arms 2 and 12 on the holder 1 side Only the other movable support arm 12 is opened / closed with respect to one fixed support arm 2 positioned on the holder 1, and the engaging / disengaging portion 11 is connected to the fixed support arm 2 among the connecting arms 25, 42 of the heating members 23, 40. 39, only the other movable connecting arm 42 detachably supported by the engagement / disengagement portions 22 and 56 with respect to the movable support arm 12 with respect to the one fixed connection arm 25 supported detachably at 39, 39 is opened and closed. It was opened and closed with it. In invention of Claim 5 , the heating members 23 and 40 can be put together compactly.

In the invention of claim 6 (corresponding to the first and second embodiments) based on the invention of any one of claims 1 to 5 , the holder 1 has both support arms 2, 12 attached to each other. An opening / closing operation means 76 for opening and closing is provided. According to the sixth aspect of the present invention, when the holder 1 is gripped and the opening / closing operation means 76 is operated, both the heating elements 24 and 41 can be opened and closed.

Next, technical ideas other than the claims will be described with reference to the reference numerals in the drawings of the embodiments.
In the seventh invention (corresponding to the first and second embodiments) based on the invention of claim 2, the support arms 2 and 12 of the holder 1 and the connecting arms 25 and 42 of the heating members 23 and 40 are respectively cylindrical. 3, 14, 26, 43, and the cylindrical bodies 3, 14 of the support arms 2, 12 and the cylindrical bodies 26, 43 of the connecting arms 25, 42 are supported so as to form a cylindrical shape, and the electric wiring 60, 64, 68, and 70 pass through these cylinders 3, 14, 26, and 43, and the electrical connection terminals 61, 65, 72, and 74 are arranged in these cylinders 3, 14, 26, and 43. Has been. In the seventh invention, the electric wirings 60, 64, 68, and 70 and the electric coupling terminals 61, 65, 72, and 74 can be collected in a compact manner.

In the invention of any one of claims 1 to 6 or the eighth invention (corresponding to the first and second embodiments) based on the seventh invention, the engagement / disengagement portion is the heating member. Of the connecting arms 25 and 42 of the holders 23 and 40 and the supporting arms 2 and 12 of the holder 1, the locking projections 39 and 56 are provided on one side, and the locking holes 11 and 22 are provided on the other side. By operating the portions 36 and 53, the locking projections 39 and 56 can be engaged and disengaged from the locking holes 11 and 22. In the eighth invention, the connecting arms 25 and 42 can be easily attached to and detached from the support arms 2 and 12 with a simple structure.

In the ninth invention (corresponding to the first and second embodiments) based on the invention of any one of claims 1 to 6 or the seventh invention or the eighth invention, the heating member 23 40, on the front side of the heating surfaces 84, 58 of the heating bodies 24, 41, for example, a sheet 84a, 58a having a resin such as a fluororesin having good separability with respect to the heated surface is attached, or The surface is coated with a resin such as a fluororesin having good separability with respect to the heated surface, and a surface having a resin with good separability with respect to the heated surface is provided. In the ninth invention, the heating surfaces 84 and 58 of the heating bodies 24 and 41 are provided on the heated surfaces such as the end surfaces 85a of the covering members 85 shown in FIG. 8C and the outer peripheral surface of the tape 88 shown in FIG. Is easily separated from the surface to be heated.

  The present invention can be used as the holder 1 in various pipe member covering material heat-sealing tools, and the heating members 23 and 40 can be changed to various types. The usability can be improved.

First, the heat insulating material heat fusion tool for fluid pipes according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 7 and FIGS.
As shown in FIGS. 1 to 4, the fixed support arm 2 is attached and positioned in the head 1 a (attachment portion) of the holder 1. In the head 1 a, the movable support arm 12 is supported by the support shaft 13 so as to be rotatable in the vertical direction Z above the fixed support arm 2. As shown in FIGS. 5 to 7, the cylindrical body 3 of the fixed support arm 2 and the cylindrical body 14 of the movable support arm 12 have openings 5 on both sides in the front-rear direction X with cylindrical outer peripheral walls 4 and 15. 6, 16 and 17 are formed, and support walls 7 and 18 are formed between the front and rear openings 5, 6, 16 and 17 on the inner periphery of the outer peripheral walls 4 and 15, and the support walls 7 and 18 are formed. A pair of terminal holes 8 and 19 and a pair of terminal holes 9 and 20 are formed. In the cylinder 3 of the fixed support arm 2 and the cylinder 14 of the movable support arm 12, the locking grooves 10, 21 are formed in the front and rear direction X on the inner peripheral upper side of the outer peripheral walls 4, 15 on the front openings 5, 16 side. It is extended to. In the cylinder 3 of the fixed support arm 2, a locking hole 11 is formed on the left side of both sides in the left-right direction Y on the front opening 5 side of the outer peripheral wall 4. In the cylindrical body 14 of the movable support arm 12, a locking hole 22 is formed on the right side of both sides in the left-right direction Y on the front opening 16 side of the outer peripheral wall 15.

  In the lower heating member 23, the fixed heating body 24 is supported by the fixed connecting arm 25. In the upper heating member 40, the movable heating body 41 is supported by the movable connecting arm 42. In the cylindrical body 26 of the fixed connecting arm 25 and the cylindrical body 43 of the movable connecting arm 42, openings 28, 29, 45, 46 are formed on both sides in the front-rear direction X with cylindrical outer peripheral walls 27, 44. In addition, support walls 30 and 47 are formed on the inner periphery of the outer peripheral walls 27 and 44 between the front and rear openings 28, 29, 45 and 46, and a pair of terminal holes 31 and 48 are formed in the support walls 30 and 47. A pair of terminal holes 32 and 49 are formed. In the fixed connecting arm 25, a support plate 33 to which the fixed heating body 24 is attached is inserted into the outer peripheral wall 27 from the front opening 28 of the cylindrical body 26 and attached to the support wall 30. In the movable connecting arm 42, the support plate 50 to which the movable heating body 41 is attached is inserted into the outer peripheral wall 44 from the front opening 45 of the cylindrical body 43 and attached to the support wall 47. In the cylindrical body 26 of the fixed connecting arm 25 and the cylindrical body 43 of the movable connecting arm 42, the locking protrusions 34, 51 are arranged in the front-rear direction on the outer peripheral walls 27, 44 on the rear openings 29, 46 side. It extends to X. An operation hole 35 is formed on the left side of both sides in the left-right direction Y on the rear opening 29 side of the outer peripheral wall 27 in the cylindrical body 26 of the fixed connecting arm 25, and an operation button 36 is inserted into the operation hole 35. The spring 37 protrudes to the outside of the operation hole 35 by the elastic force. A locking tongue 38 is formed inside the operation button 36, and a locking projection 39 is formed on the locking tongue 38. In the cylindrical body 43 of the movable connecting arm 42, an operation hole 52 is formed on the right side of both sides in the left-right direction Y on the rear opening 46 side of the outer peripheral wall 44, and an operation button 53 is inserted into the operation hole 52. The spring 54 protrudes outside the operation hole 52 by the elastic force. A locking tongue piece 55 is formed inside the operation button 53, and a locking projection 56 is formed on the locking tongue piece 55.

  In the fixed connecting arm 25 of the lower heating member 23, the rear opening 29 side of the outer peripheral wall 27 of the cylindrical body 26 is inserted into the front opening 5 side of the outer peripheral wall 4 in the cylindrical body 3 of the fixed support arm 2. Has been. In the inserted state, the locking ridge 34 of the outer peripheral wall 27 is engaged with the locking groove 10 of the outer peripheral wall 4 so that the fixed connection arm 25 is prevented from rotating with respect to the fixed support arm 2. The locking projection 39 of the operation button 36 is engaged with the locking hole 11 of the fixed support arm 2 so that the fixed connection arm 25 is prevented from coming off from the fixed support arm 2. The rear opening 46 side of the outer peripheral wall 44 of the cylinder 43 in the movable connecting arm 42 of the upper heating member 40 is inserted into the front opening 16 side of the outer peripheral wall 15 in the cylinder 14 of the movable support arm 12. ing. In the inserted state, the locking protrusion 51 of the outer peripheral wall 44 is engaged with the locking groove 21 of the outer peripheral wall 15 so that the movable connecting arm 42 is prevented from rotating with respect to the movable supporting arm 12. The locking projection 56 of the operation button 53 is engaged with the locking hole 22 of the movable support arm 12 so that the movable connecting arm 42 is prevented from being detached from the movable support arm 12.

  Outside the front-rear direction X with respect to the head 1a (mounting portion) of the holder 1, the lower heating member 23 is disposed on the extending direction (downward) side of the grip portion 1b that is bent from the head 1a and extends downward. The fixed heating body 24 is provided, and the upper heating member 40 is provided with the movable heating body 41 disposed on the opposite side (upward) to the extending direction. Each of the fixed heating body 24 and the movable heating body 41 has a plate shape having a semicircular outer periphery, and is mainly formed of a metal that is easily heated. A semi-circular split hole 58 is formed in the split edge portion 57 of the fixed heater 24 and the movable heater 41 facing each other in the rotation direction R around the rotation center line 13 a of the support shaft 13. In the fixed heating body 24 and the movable heating body 41, a heater 59 using heat rays is incorporated as a heating means.

  A pair of electric wires 60 connected to the heater 59 in the fixed heating body 24 is connected to terminals 61 inserted into both terminal holes 31 in the fixed connecting arm 25. In addition, the pair of control electric wires 62 are connected to terminals 63 inserted into both terminal holes 32 in the fixed connecting arm 25. A pair of electrical wires 64 connected to the heater 59 in the movable heating body 41 is connected to terminals 65 inserted into both terminal holes 48 in the movable connecting arm 42. In addition, the pair of control electric wires 66 are connected to terminals 67 inserted into both terminal holes 49 in the movable connecting arm 42. On the other hand, the electrical wires 68, 69, 70, 71 guided from the gripping portion 1 b to the head 1 a in the holder 1 are each terminal holes 8, 9 in the fixed support arm 2 and each terminal hole in the movable support arm 12. 19 and 20 are connected to terminals 72, 73, 74 and 75 inserted. When the fixed connection arm 25 is connected to the fixed support arm 2, the terminals 72 and 73 on the fixed support arm 2 side and the terminals 61 and 63 on the fixed connection arm 25 side are connected to each other and movable relative to the movable support arm 12. When the connecting arm 42 is inserted, the terminals 74 and 75 on the movable support arm 12 side and the terminals 65 and 67 on the movable connecting arm 42 side are connected to each other.

  In the opening / closing operation means 76 (link mechanism) assembled in the holder 1, an operation lever 77 adjacent to the gripping portion 1b on the outside thereof is supported so as to be rotatable about a support shaft 78, and the movable support arm. The interlocking link 80 is rotatably supported by the interlocking shaft 79 supported on both sides in the left-right direction Y by the outer peripheral wall 15 of the 12 cylinders 14, and the interlocking lever that rotates integrally with the operation lever 77. 81 and the interlocking link 80 are connected to each other by an interlocking shaft 82 so as to be rotatable. Accordingly, when the operating lever 77 is pushed toward the gripping portion 1b against the elastic force of the spring 78a, the movable support arm 12 moves the rotation center line 13a of the support shaft 13 via the interlocking lever 81 and the interlocking link 80. The movable heating body 41 is rotated upward with respect to the center, and the movable heating body 41 is rotated upward with respect to the fixed heating body 24, so that the upper and lower heating members 40, 23 are opened to each other. When the operating lever 77 is released, the operating lever 77 is restored by the elastic force of the spring 78 a, and the movable support arm 12 passes through the rotation center line 13 a of the support shaft 13 via the interlocking lever 81 and the interlocking link 80. The movable heater 41 is rotated downward about the center, the movable heater 41 is rotated downward with respect to the fixed heater 24, and the upper and lower heating members 40, 23 are closed to each other.

  In the closed state Q of the upper and lower heating members 40, 23, the fixed heating body 24 and the movable heating body 41 are superposed on each other at the split edge portion 57 to form a disk shape, and the fixed heating body 24 and the movable heating body 41 are separated from each other. A circular insertion hole 83 is formed by the split hole 58 of the split edge portion 57 at the center portion of the gap, and this insertion is performed on both sides of the center hole direction Y of the insertion hole 83 in the fixed heating body 24 and the movable heating body 41. A circular side surface 84 is formed on the entire outer periphery of the hole 83. On the front side of both side surfaces 84 of the fixed heating body 24 and the movable heating body 41, a sheet 84a coated with a resin having good separability with respect to the surface to be heated, such as a fluororesin or a silicone resin, is attached. Further, the surface of both side surfaces 84 may be coated with a resin having good separability with respect to the heated surface, such as a fluororesin or a silicone resin. Both side surfaces 84 generate heat by the heaters 59 in the fixed heating body 24 and the movable heating body 41 and function as heating surfaces. In the open state P of both the upper and lower heating members 40, 23, the split edge portions 57 of the fixed heater 24 and the movable heater 41 are separated from each other, and the split holes 58 that form the insertion holes 83 in the closed state Q are also mutually connected. It is possible to form an insertion / removal-permitted space S between the split edges 57.

It will now be described with reference to FIGS about the thermal insulation material with the fluid tube and the junction procedures were joined utilizing the fluid pipe insulation material heat Chakugu according to the first embodiment.
As shown in FIG. 8 (a), a tube member in which an outer surface 86a of an inner tube 86 made of resin, copper or the like is covered with a heat insulating material 85 as a cylindrical covering material made of a heat insulating material such as polyethylene foam. The fluid pipes M1 and M2 are divided at both sides of the inner pipe 86 in the longitudinal direction. By opening a gap G between the outer surface 86a of the inner tube 86 and the inner peripheral surface of the heat insulating material 85, the inner tube 86 can be easily inserted into the heat insulating material 85 at the expanded portion or the bent portion. When these fluid pipes M1 and M2 are connected to each other, first, as shown in FIG. 8B, the heat insulating material 85 is moved in the longitudinal direction with respect to the inner pipe 86 so that the two heat insulating materials 85 face each other. While separating the end surfaces 85a from each other, the inner pipes 86 exposed between the two heat insulating materials 85 are connected to each other. Next, as shown in FIG. 3, the upper and lower heating members 40, 23 of the heat-sealing tool are opened P and the insertion / removal-allowable space S is formed between the split edge portions 57 of the fixed heating body 24 and the movable heating body 41. After the inner pipe 86 is inserted, when the upper and lower heating members 40 and 23 are brought into the closed state Q, the inner pipe 86 is fitted into the insertion hole 83. Thereafter, as shown in FIG. 8 (c), when the end surfaces 85a of the two heat insulating materials 85 are pressed against the sheets 84a on both side surfaces 84 of the fixed heating body 24 and the movable heating body 41, the end surfaces 85a are simultaneously heated and melted. Is done. Next, when both the upper and lower heating members 40 and 23 are opened P, and the inner tube 86 is removed from the insertion / removal allowable space S between the split edge portions 57 of the fixed heating body 24 and the movable heating body 41, FIG. ), The end surfaces 85a of the two heat insulating materials 85 in the molten state oppose each other in the longitudinal direction. When the end surfaces 85a of the two heat insulating materials 85 in the molten state are pressed against each other immediately after the upper and lower heating members 40, 23 of the heat fusion tool are removed from the end surfaces 85a of the two heat insulating materials 85 in this way, FIG. As shown in FIG. 4, the both end surfaces 85a are heat-sealed and joined together, and a seam 87 is formed on the entire outer periphery of the inner tube 86 by heat-sealing.

  When the operation buttons 53 and 36 are pushed against the elastic force of the springs 54 and 37 in a state where the upper and lower heating members 40 and 23 are connected to the holder 1, FIG. 4, FIG. 5 (b), FIG. 6 (b), FIG. 7 (b) and FIG. 7 (d), the locking projections 56 and 39 of the operation buttons 53 and 36 come out of the locking holes 22 and 11, and the fixed connection arm 25 is detached from the fixed support arm 2. In addition, the movable connecting arm 42 can be detached from the movable support arm 12. At this time, the terminals 61 and 63 on the fixed connection arm 25 side are also detached from the terminals 72 and 73 on the fixed support arm 2 side, and the terminals 65 and 67 on the movable connection arm 42 side are also on the movable support arm 12 side. Detach from the terminals 74 and 75. Therefore, the upper and lower heating members 40 and 23 can be separately detached from the holder 1 while being separated from each other. For the upper and lower heating members 40 and 23, as shown in FIG. 4A, the outer diameter A of the upper and lower heating bodies 41 and 24, the inner diameter B of the insertion hole 83, the length L of the fixed connecting arm 25 and the movable connecting arm 42. Can be replaced with different ones, and the upper and lower heating members 40 and 23 can be attached to the same holder 1.

Next, a heat insulating material heat fusion tool for fluid pipes according to a second embodiment of the present invention will be described with reference to FIG. 11 and FIG. 12 with a focus on differences from the first embodiment.
In the second embodiment, the form of both the upper and lower heating members 40 and 23 of the first embodiment is changed, and the heater 59 is formed on the opposite inner surfaces of the split holes 58 in the upper and lower heating bodies 41 and 24 in the closed state Q. A heating surface that generates heat is provided. A sheet 58a coated with a resin having good separability with respect to the surface to be heated, such as a fluororesin or a silicone resin, is attached to the front side of the heating surface on the opposite inner surfaces of the split holes 58. Further, the surface of the heating surface may be coated with a resin having good separability with respect to the surface to be heated, such as a fluorine resin or a silicone resin. The upper and lower heating members 40 and 23 are exchanged from those of the first embodiment to those of the second embodiment, or are exchanged to those having different inner diameters C of the split holes 58, and the upper and lower heating members 40 and 23 are the same. It can be attached to the holder 1.

Next, with reference to FIG. 12 will be described heat insulating material-fluid pipe and the junction procedures were joined utilizing the heat insulator thermally Chakugu fluid tube according to the second embodiment.
As shown in FIG. 12 (a), in the state where the outer surface 86a of the inner pipe 86 is covered with both heat insulating materials 85 divided on both sides in the longitudinal direction of the inner pipes 86 connected to each other, both opposing each other in the longitudinal direction. The end surfaces 85a of the heat insulating material 85 are pressed against each other. Next, as shown in FIG. 12 (b), winding the tape 88 on the outer circumferential surface surrounding the end faces 85a. A hot-melt adhesive resin is applied to the inner peripheral surface of the tape 88. Next, after the both upper and lower heating members 40 and 23 of the heat fusion tool are in the open state P and both heat insulating materials 85 are inserted into the insertion / removal allowable space S between the split edges 57 of the upper and lower heating bodies 41 and 24. When the upper and lower heating elements 41 and 24 are in the closed state Q, the two heat insulating materials 85 are fitted into the insertion holes 83. Thereafter, as shown in FIG. 12 (c), when the outer peripheral surface of the tape 88 is pressed against the sheet 58a of the dividing hole 58 of the upper and lower heating bodies 41, 24, the hot-melt adhesive resin on the inner peripheral surface of the tape 88 and its inner The outer peripheral surfaces of both heat insulating materials 85 in contact with the peripheral surface are heated and melted. Next, when disengaging the both heat insulating material 85 from the insertion and removal allowing space S between Warien portion 57 of the upper and lower heating bodies 41,24 and the upper and lower heating members 40,23 in the open state P, FIG 12 (d) As shown in FIG. 2, the inner peripheral surface of the tape 88 and the outer peripheral surface of the two heat insulating materials 85 are bonded to each other while the end surfaces 85a of the two heat insulating materials 85 are pressed against each other. A joint portion 88a is formed by heat fusion so as to close the outer periphery of the substrate.

This embodiment has the following effects.
* The fixed connection arm 25 of the lower heating member 23 can be attached to and detached from the fixed support arm 2 of the holder 1 by the engagement / disengagement portion (the lock hole 11 and the lock projection 39), and the movable support arm 12 of the holder 1 On the other hand, the movable connecting arm 42 of the upper heating member 40 can be attached / detached by the engagement / disengagement portion (the locking hole 22 and the locking projection 56), so the lower heating member 23 and the upper heating member 40 are changed to various types. Even so, the holder 1 can also be used.

  * Electric wirings 60 and 68 for the heater 59 in the fixed heating body 24 of the lower heating member 23 can be intermittently connected by the electrical connection terminals 61 and 72, and the heater 59 in the movable heating body 41 of the upper heating member 40. Therefore, even when the lower heating member 23 and the upper heating member 40 are changed to various types using the holder 1 as well, the heater 59 can be connected. Thus, the fixed heating body 24 and the movable heating body 41 can generate heat.

  * If the heat-sealing tool according to the first embodiment is used, the end surfaces 85a of the two heat retaining materials 85 are thermally fused and joined to each other, so that the end surfaces 85a are difficult to separate from each other, and both the heat retaining materials 85 A gap is less likely to occur in the joint 87 between them. Accordingly, condensation is unlikely to occur on the outer surface 86a of the inner tube 86, and the occurrence of water leakage can be prevented. At the seam 87, the end surfaces 85a of the two heat insulating materials 85 are heat-sealed over the entire outer periphery of the inner tube 86, so that a gap is less likely to occur.

  * If the heat fusion tool according to the second embodiment is used, the inner peripheral surface of the tape 88 and the outer peripheral surfaces of the two heat insulating materials 85 are bonded by heat fusion to each other. The tape 88 surrounding the heat insulating material 85 is less likely to be peeled off from both the heat insulating materials 85, and a gap is less likely to be generated between the end surfaces 85 a of the both heat insulating materials 85. Accordingly, condensation is unlikely to occur on the outer surface 86a of the inner tube 86, and the occurrence of water leakage can be prevented. Since the tape 88 is heat-sealed over the entire outer periphery of both the heat insulating materials 85, the gap is more unlikely to occur.

  * In the first embodiment, since the inner tube 86 is fitted into the insertion hole 83 in the closed state Q of the fixed heater 24 and the movable heater 41, the fixed heater 24 and the movable heater 41 are stabilized with respect to the inner tube 86. In this state, the fixed heating body 24 and the movable heating body 41 can be applied to the end surfaces 85a of the two heat insulating materials 85 to melt the end surfaces 85a, thereby facilitating the work.

  * In the second embodiment, since both the heat insulating materials 85 are fitted into the insertion holes 83 in the closed state Q of the fixed heating body 24 and the movable heating body 41, the fixed heating body 24 and the movable heating body 41 are attached to both the heat insulating materials 85. In a state of being stably held, the fixed heating body 24 and the movable heating body 41 can be applied to the outer peripheral surface of the tape 88, and the inner peripheral surface of the tape 88 can be melted.

  * When the holder 1 is gripped and the opening / closing operation means 76 is operated, the fixed heating body 24 and the movable heating body 41 can be opened and closed without touching the fixed heating body 24 and the movable heating body 41 directly. It becomes easy to do.

For example, the following embodiments may be configured as follows.
The engaging and disengaging portions that detachably support the connecting arms 25 and 42 of both heating members 23 and 40 with respect to both supporting arms 2 and 12 are the locking holes 11 and 22 of both supporting arms 2 and 12 in the above-described embodiments. On the other hand, the locking projections 39 and 56 of the operation buttons 36 and 53 of both the connecting arms 25 and 42 are engaged and disengaged. The locking holes 25 and 42 may be engaged and disengaged. Further, the operation buttons 36 and 53 can be omitted, and the engagement holes 25 and 42 are simply inserted into the support arms 2 and 12, and the operation buttons 36 and 53 are not operated at all. You may enable it to engage / disengage 11 and 22 and the latching protrusions 39 and 56 mutually.

  In each of the above embodiments, the holder 1 includes a head 1a having an attachment portion that supports the heating members 23 and 40, and a gripping portion 1b that bends and extends from the head 1a. The fixed heating body 24 is supported by the mounting portion of the portion 1a so as not to rotate, and the movable heating body 41 is supported so as to be able to rotate with respect to the fixed heating body 24. The fixed heating body Reference numeral 24 is disposed on the extending direction side of the grip portion 1b, and the movable heating body 41 is disposed on the opposite side to the extending direction. Instead of this configuration, the heating body 41 of the upper heating member 40 may be fixed and the heating body 24 of the lower heating member 23 may be rotated, or the heating bodies 24 and 41 may be rotated together. .

  As the heating means in the heating members 23 and 40, the heating surfaces of the heating bodies 24 and 41 (the side surfaces 84 of the first embodiment and the inner surfaces of the dividing holes 58 of the second embodiment) are heated instead of the heater 59 by heat rays. For example, hot air by gas can be ejected from a large number of small holes formed on the heating surface, or the heater 59 can be powered by a battery. Further, a paste made of tungsten or molybdenum powder and printed almost uniformly on the entire surface of alumina is adopted as a resistor in place of the heat ray.

As the opening / closing operation means 76 for the heating members 23, 40, a finger pad that can open and close the heating bodies 24, 41 is provided instead of the link mechanism described above.
In each of the above embodiments, the heating bodies 24 and 41 of the heating members 23 and 40 have a circumferential angle of 180 degrees, but the heating bodies 24 and 41 may be formed at a circumferential angle of 90 degrees, for example. . In this case, the insertion hole 83 formed between the heating bodies 24 and 41 in the closed state Q becomes a space opened to the outside, and the inner tube 86 or both heat insulating materials 85 inserted into the space are the heating bodies 24 and 41. Sandwiched between. The heating members 23 and 40 are rotated in a state where the heating surfaces (side surfaces 84 of the first embodiment) of the heating bodies 24 and 41 are applied to the end surface 85a of the heat insulating material 85, and the end surfaces 85a are melted. Further, the heating members 23 and 40 are rotated in a state where the heating surfaces of the heating bodies 24 and 41 (the inner surfaces of the split holes 58 of the second embodiment) are applied to the outer peripheral surface of the tape 88, so Melt the inner peripheral surface.

  As shown in FIG. 8A, the fluid pipes M1 and M2 in which the outer surface 86a of the inner pipe 86 is covered with a cylindrical heat insulating material 85 are divided on both sides in the longitudinal direction of the inner pipe 86. The tube 86 may be connected in series in the longitudinal direction, or only the heat insulating material 85 may be divided on both sides in the longitudinal direction.

(A) is a right view which shows the closed state of the upper and lower heating members in the heat insulating material heat-sealing device for fluid pipes according to the first embodiment of the present invention, and (b) is a left side view which similarly shows the closed state. And (c) is a partial front view showing only the upper and lower heating members when (a) is viewed from the front side. (A) is a partially cutaway right side view of FIG. 1 (a), and (b) is a partially cutaway left side view of FIG. 1 (b). (A) is a right side view showing the open state of both the upper and lower heating members in the heat insulating material heat fusion tool for fluid pipes according to the first embodiment of the present invention, and (b) is a partially cut right side of (a). FIG. (A) is a right view which shows the detachment | leave state of the upper and lower heating members with respect to a holder in the heat insulating material heat fusion tool for fluid pipes concerning 1st Embodiment of this invention, (b) is a partially notched right side view similarly It is a figure and (c) is a partially notched left view. (A) is the fragmentary sectional view which looked at the connection state of the connection arm of the upper and lower heating members with respect to the upper and lower support arms of the holder in FIG. 2 (a) from the right side, and (b) is the view in FIG. 4 (b). It is the fragmentary sectional view which looked at the separation state of the connecting arm of the upper and lower heating members with respect to the upper and lower support arms of the holder as seen from the right side. (A) is the fragmentary sectional view which looked at the connection state of the connection arm of the up-and-down heating member with respect to the up-and-down both support arm of a holder in FIG.2 (b) from the left side surface, (b) is FIG.4 (c). It is the fragmentary sectional view which looked at the detached state of the connection arm of the up-and-down both heating member with respect to the up-and-down both support arms of a holder from the left side. (A) is the fragmentary sectional view which looked at the connection state of the connection arm of the upper side heating member with respect to the upper support arm of a holder in Drawing 2 (a) from the plane side, and (b) is the upper side of a holder in Drawing 4 (b). It is the fragmentary sectional view which looked at the separation state of the connection arm of the upper side heating member with respect to a support arm from the plane side, and (c) is the connection of the connection arm of the lower side heating member to the lower support arm of a holder in Drawing 2 (a). It is the fragmentary sectional view which looked at the state from the plane side, (d) is the fragmentary sectional view which looked at the separation state of the connecting arm of the lower heating member from the lower support arm of the holder in FIG. is there. (A) (b) (d) is a partial longitudinal cross section showing the process of joining the separated fluid pipes with a heat insulating material together using the heat insulating material heat fusion tool for fluid pipes of the first embodiment, as viewed from the front side. It is a figure and (c) is a partial top view similarly. It is a longitudinal cross-sectional view which shows a part of fluid pipe | tube with a heat insulating material concerning this embodiment. It is a longitudinal cross-sectional view which shows a part of conventional fluid pipe | tube with a heat insulating material. (A) is a right side view showing the closed state of both the upper and lower heating members in the heat insulating material heat fusion tool for fluid pipes according to the second embodiment of the present invention, and (b) is a right side view showing the open state. is there. (A) (b) (d) is a partial vertical cross section showing the process of joining the separated fluid pipes with a heat insulating material together using the heat insulating material heat fusion tool for fluid pipes of the second embodiment as seen from the front side. It is a figure and (c) is a partial top view similarly.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Holder, 1a ... Head as attachment part of holder, 2 ... Fixed support arm, 11, 22 ... Locking hole as engagement / disengagement part, 12 ... Movable support arm, 13a ... Turning center line of upper heating member , 23 ... lower heating member, 24 ... fixed heating body, 25 ... fixed connection arm, 39, 56 ... locking projection as an engagement / disengagement part, 40 ... upper heating member, 41 ... movable heating body, 42 ... movable connection arm , 57 ... Split edge part, 58 ... Split hole (heating surface), 59 ... Heater as heating means, 60, 64, 68, 70 ... Electric wiring, 61, 65, 72, 74 ... Electrical coupling terminal, 76 ... Opening and closing Operation means, 83 ... insertion hole, 84 ... side surface which is a heating surface, P ... open state of both heating bodies, Q ... closed state of both heating bodies, Y ... center line direction of insertion hole, R ... turn of upper heating member Direction of movement.

Claims (6)

A holder provided with both supporting arms that can be opened and closed with each other, and both heating members that support a heating body provided with a heating surface that generates heat by the heating means, and one of the connecting arms of both heating members. The connecting arm is detachably supported by one of the two supporting arms at the engaging / disengaging portion, and the other connecting arm of the two heating arms is connected to the other supporting arm of the two supporting arms. A pipe member covering material heat-sealing tool that is detachably supported by an engagement / disengagement part, and that opens and closes the heating bodies of both heating members together with both connecting arms as the opening and closing movements of both supporting arms ,
In both the heating members, the two heating bodies are closed in a closed state, and an insertion hole is formed between the two heating bodies. In both the heating bodies in the closed state, the outer periphery of the insertion hole is formed on both sides in the center line direction of the insertion hole. A pipe member covering material heat-sealing tool , wherein a heating surface is provided on at least one of the two side surfaces formed in the above. In both the heating members, a heater is provided as a heating means in the heating body, and electrical wiring is connected to the heater through the connecting arm on the heating member side and the support arm on the holder side, and the heating member is connected to the support arm on the holder side. An electrical coupling terminal is provided for intermittently connecting the electrical wiring passing through the inside of the support arm on the holder side and the electrical wiring passing through the inside of the connecting arm on the heating member side when the connecting arm on the side is attached or detached. The covering material thermal fusion tool for pipe members according to 1. Both support arms on the holder side are supported by an attachment portion so as to be relatively rotatable, and are opened and closed with each other. In both the heating members, both heating bodies rotate together with both connecting arms as the support arms rotate relative to each other. The split holes for forming the insertion holes are formed in the split edges facing each other in the rotation direction around the rotation center line of the mounting portion in both heating bodies that are opened and closed to each other and in the closed state. The pipe member covering material heat-sealing tool according to claim 1 or 2, characterized in that: Each of the heating members has a pair of heating bodies that are supported by the mounting portion so as to be relatively rotatable and can be opened and closed with each other, and in both heating bodies in the closed state, the rotation centering on the rotation center line of the mounting portion. 2. A split hole is formed in a split edge portion opposed to each other in the moving direction, and a heating surface that generates heat by a heating means is provided on a mutually opposing inner surface of the split holes of both heating elements. The pipe member covering material heat-sealing tool according to claim 3. Of the two support arms on the holder side, only the other movable support arm is opened / closed with respect to one fixed support arm positioned on the holder, and of the connecting arms of both heating members, the fixed support arm is attached / detached at the engagement / disengagement portion. It is characterized in that only the other movable connecting arm, which is detachably supported by the movable support arm by the engaging / disengaging part, is opened / closed in association with the opening / closing movement of the movable supporting arm with respect to the one fixed connecting arm that is movably supported. The pipe member covering material heat-sealing tool according to any one of claims 1 to 4. The tube member covering material heat-sealing tool according to any one of claims 1 to 5, wherein the holder is provided with opening / closing operation means for moving both supporting arms to open and close each other.

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