JP5139682B2 - Heat insulation material for heat insulation material for fluid pipes - Google Patents

Heat insulation material for heat insulation material for fluid pipes Download PDF

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Publication number
JP5139682B2
JP5139682B2 JP2007007267A JP2007007267A JP5139682B2 JP 5139682 B2 JP5139682 B2 JP 5139682B2 JP 2007007267 A JP2007007267 A JP 2007007267A JP 2007007267 A JP2007007267 A JP 2007007267A JP 5139682 B2 JP5139682 B2 JP 5139682B2
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temperature
heating
heat
heat insulating
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JP2008173799A5 (en
JP2008173799A (en
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博之 東谷
剛史 森田
光重 泉
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Inoac Corp
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Inoac Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91231—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the joining tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept constant over time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • B29C66/8618—Hand-held tools being battery operated

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermal Insulation (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

本発明は、内管の外表面を保温材により被覆した空調配管などにおいてその内管の長手方向の両側で分断した両保温材間を接合する際に利用する流体管用保温材熱融着装置に関するものである。 The present invention relates to a fluid pipe insulation material heat wearing location utilized when bonding between longitudinal both heat insulating material which is divided on both sides of the outer surface thereof an inner tube in such coated conditioned piping by thermal insulation of the inner tube It is related.

従来、空調機器では、運転時に管内を通る冷媒が雰囲気温度よりも急激に温度変化すると、管の外表面に結露が生じることがある。この結露を防ぐために、円筒状の保温材により被覆された管を建物の構造に合わせて施工している。その施工の際、管同士を接続する場合があり、その接続時に保温材同士も接合している。例えば下記特許文献１では、断熱防水シート間の継ぎ目に継ぎ目シートを巻いている。一般に、結露防止手段を有する保温材付き流体管では、図５に示すように、発泡ポリエチレン等からなる保温材２８により内管２９の外表面２９ａを被覆し、内管２９の長手方向の両側で分断した両保温材２８の端面２８ａ間の継ぎ目３０には相対向する両端面２８ａの外周で粘着テープ３２を巻いている。
特開２００１−５０４８１号公報 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. 5, the outer surface 29a of the inner pipe 29 is covered with a heat insulating material 28 made of foamed polyethylene or the like, and on both sides of the inner pipe 29 in the longitudinal direction. An adhesive tape 32 is wound around the joint 30 between the end surfaces 28a of the two heat insulating materials 28 around the opposite ends 28a.
JP 2001-50481 A

しかし、施工誤差や施工後の経時変化などが原因して、保温材２８が収縮すると、粘着テープ３２が剥がれて両保温材２８間の継ぎ目３０に隙間が生じ、その隙間で内管２９の外表面２９ａが露出してそこに結露が生じることがあった。その結露水が建物に漏れると、漏水が発生する原因になっていた。   However, when the heat insulating material 28 contracts due to a construction error or a change over time after the construction, the adhesive tape 32 is peeled off, and a gap is formed in the joint 30 between the two heat insulating materials 28, and the space outside the inner tube 29 is formed by the gap. In some cases, the surface 29a was exposed to cause condensation. If the condensed water leaked into the building, it caused water leakage.

この発明は、熱融着接合の採用により両保温材の端面間に隙間が生じにくい流体管用保温材熱融着装置を提供することを目的としている。 The present invention is aimed at and Turkey to provide a thermal insulation material heat sealing apparatus for have flow body vessel clearance difficulty occurs between the end faces of the insulation material by adoption of heat bonding.

後記実施形態の図面の符号を援用して本発明を説明する。
請求項１の発明にかかる流体管用保温材熱融着装置（図１，２を参照）においては、加熱手段１８により発熱される一対の加熱体４，７を取付部で相対回動可能に支持されて互いに開閉することができる加熱部材２と、加熱部材２を支持し把持部１ｂを有するホルダ１と、このホルダ１には把持部１ｂの外側に隣接し加熱体４，７を互いに開閉させる開閉操作手段１０である操作レバー１１を備えた流体管用保温材熱融着具と、該ホルダ１内に設けられてその流体管用保温材熱融着具を制御する駆動制御手段とを備えている。流体管用保温材熱融着具には、閉状態にある両加熱体４，７において取付部における回動中心線を中心とする回動方向で相対向する割縁部８には挿通孔１６を形成する割孔９を有し、この両加熱体４，７の両側面１７には加熱手段１８により発熱される加熱面を設け、開閉操作手段１０の操作により各加熱体４，７を開状態で形成された挿通孔１６の空間には、内管２９の外表面２９ａを被覆する両保温材２８の端面２８ａ間に露出した内管２９を嵌め込むことができ、各加熱体４，７を閉状態で形成された挿通孔１６には、両保温材２８の端面２８ａ間に露出した内管２９を嵌め込み、該各加熱体４，７の加熱面に両保温材２８の端面２８ａを押し当て両保温材の端面を熱溶融させる。加えて、この駆動制御手段においては、流体管用保温材熱融着具の加熱体４，７の温度を検出する温度センサ２７と、その温度センサ２７による検出温度が上昇中であることを知らせる温度上昇認知部２０と、その温度センサ２７による検出温度が下降中であることを知らせる温度下降認知部２１と、その温度センサ２７による検出温度が下限温度以下の安全温度範囲であることを知らせる安全温度認知部２２と、その温度センサ２７による検出温度が上限温度以上の熱融着温度範囲であることを知らせる熱融着温度認知部２３と、温度上昇モードと温度下降モードとに切り替えることができる切替スイッチ２５とを備え、切替スイッチ２５により設定された温度上昇モードでは、温度上昇認知部２０により上昇中であることを知らせるとともに、安全温度認知部２２により安全温度範囲であることを知らせるか、または、熱融着温度認知部２３により熱融着温度範囲であることを知らせ、切替スイッチ２５により設定された温度下降モードでは、温度下降認知部２１により下降中であることを知らせるとともに、熱融着温度認知部２３により熱融着温度範囲であることを知らせるか、または、安全温度認知部２２により安全温度範囲であることを知らせる。 The present invention will be described with reference to the drawings in the embodiments described later.
In the heat insulating material heat fusion device for fluid pipes according to the first aspect of the present invention (see FIGS. 1 and 2), the pair of heating bodies 4 and 7 generated by the heating means 18 are supported by the mounting portion so as to be relatively rotatable. The heating member 2 that can be opened and closed with each other, the holder 1 that supports the heating member 2 and has the gripping portion 1b, and the holder 1 that is adjacent to the outside of the gripping portion 1b and opens and closes the heating bodies 4 and 7 to each other. A fluid pipe heat insulating material heat fusion tool provided with an operation lever 11 which is an opening / closing operation means 10 and a drive control means provided in the holder 1 for controlling the fluid pipe heat insulation material heat fusion tool. . In the heat insulating material heat sealer for the fluid pipe, the through-holes 16 are formed in the split edges 8 facing each other in the rotation direction around the rotation center line in the mounting portion in the both heating bodies 4 and 7 in the closed state. There are split holes 9 to be formed. On both side surfaces 17 of both heating bodies 4 and 7, there are provided heating surfaces that generate heat by the heating means 18, and each heating body 4 and 7 is opened by operating the opening / closing operation means 10. The inner tube 29 exposed between the end faces 28a of both heat insulating materials 28 covering the outer surface 29a of the inner tube 29 can be fitted into the space of the insertion hole 16 formed by In the insertion hole 16 formed in the closed state, the exposed inner tube 29 is fitted between the end surfaces 28a of the two heat insulating materials 28, and the end surfaces 28a of the two heat insulating materials 28 are pressed against the heating surfaces of the heating bodies 4 and 7. The end surfaces of both heat insulating materials are melted by heat. In addition, in this drive control means, a temperature sensor 27 that detects the temperature of the heating elements 4 and 7 of the heat insulating material heat fusion tool for fluid pipes, and a temperature that informs that the temperature detected by the temperature sensor 27 is rising. An increase recognition unit 20, a temperature decrease recognition unit 21 for informing that the temperature detected by the temperature sensor 27 is decreasing, and a safety temperature for informing that the temperature detected by the temperature sensor 27 is within a safe temperature range below the lower limit temperature. Switching that can be switched between a recognition unit 22, a thermal fusion temperature recognition unit 23 that informs that the temperature detected by the temperature sensor 27 is in the thermal fusion temperature range equal to or higher than the upper limit temperature, and a temperature increase mode and a temperature decrease mode. In the temperature rise mode set by the changeover switch 25, the temperature rise recognition unit 20 informs that the temperature is rising. In the temperature lowering mode set by the changeover switch 25, the safety temperature recognition unit 22 informs that the temperature is within the safe temperature range, or the heat fusion temperature recognition unit 23 informs the heat fusion temperature range. The temperature lowering recognition unit 21 notifies that the temperature is lowering, and the heat fusion temperature recognition unit 23 notifies that the temperature is within the heat fusion temperature range, or the safety temperature recognition unit 22 indicates that the temperature is within the safe temperature range. To inform.

請求項１の発明では、両保温材２８の端面２８ａが互いに熱融着されて接合されているので、それらの端面２８ａが互いに分離しにくくなり、両保温材２８間の継ぎ目３０に隙間が生じにくくなる。従って、内管２９の外表面２９ａに結露が生じにくくなって漏水の発生を防止することができる。その継ぎ目３０においては、内管２９の外周全体で両保温材２８の端面２８ａが熱融着されているので、隙間がより一層生じにくくなる。また、加熱部材２の閉状態Ｑで内管２９を上下両加熱体４，７間の挿通孔１６に嵌め込むので、加熱部材２を内管２９に対し安定して保持した状態で、上下両加熱体４，７の側面１７を加熱面として保温材２８の端面２８ａに当てがってその端面２８ａを溶融させることができ、作業が行い易くなる。また、上下両加熱体４，７の側面１７が加熱面として内管２９の外周全体にあるので、両保温材２８の端面２８ａ間の熱融着面積を広げることができる。しかも、流体管用保温材熱融着具における加熱部材２の温度状態を確認しながら接合作業を行うことができる。
請求項１の発明を前提とする請求項２の発明（図１を参照）において、前記流体管用保温材熱融着具の加熱部材２で各加熱体４，７の加熱面１７，９の表側には、例えば、被加熱面に対する分離性の良いフッ素樹脂又はシリコーン樹脂を表面に有するシート１７ａ，９ａを貼着するか、または、被加熱面に対する分離性の良いフッ素樹脂又はシリコーン樹脂を表面にコーティングして、被加熱面に対する分離性の良い樹脂を有する表面を設けている。 In the first aspect of the invention, since the end faces 28a of the two heat insulating materials 28 are bonded by heat fusion to each other, the end surfaces 28a are difficult to separate from each other, and a gap is formed in the joint 30 between the two heat insulating materials 28. It becomes difficult. Accordingly, condensation is unlikely to occur on the outer surface 29a of the inner tube 29, and the occurrence of water leakage can be prevented. In the joint 30, the end faces 28 a of both the heat insulating materials 28 are heat-sealed over the entire outer periphery of the inner tube 29, so that a gap is less likely to occur. Further, since the inner pipe 29 is fitted into the insertion hole 16 between the upper and lower heating bodies 4 and 7 in the closed state Q of the heating member 2, both the upper and lower sides are held in a state where the heating member 2 is stably held with respect to the inner pipe 29. The side surface 17 of the heating elements 4 and 7 can be used as a heating surface and applied to the end surface 28a of the heat insulating material 28 to melt the end surface 28a, thereby facilitating the work. Further, since the side surfaces 17 of the upper and lower heating bodies 4 and 7 are on the entire outer periphery of the inner tube 29 as heating surfaces, the heat-sealing area between the end surfaces 28a of the two heat insulating materials 28 can be increased. Moreover, the joining operation can be performed while confirming the temperature state of the heating member 2 in the heat insulating material heat fusion tool for fluid pipes.
In the invention of claim 2 based on the invention of claim 1 (see FIG. 1), the heating member 2 of the heat insulating material heat-fusing tool for fluid pipes is the front side of the heating surfaces 17, 9 of the heating bodies 4, 7. For example, the sheets 17a and 9a having a fluororesin or silicone resin having good separability with respect to the heated surface are attached to the surface, or a fluororesin or silicone resin having good separability with respect to the heated surface is attached to the surface. The surface is provided with a resin having good separability with respect to the surface to be heated.

請求項２の発明では、図３（ｃ）に示す両保温材２８の端面２８ａなどの被加熱面に各加熱体４，７の加熱面１７を当てがった際にその被加熱面から加熱面１７を分離させ易い。 In the invention of claim 2, the heated surface when wanted against the heating surface 1 7 of the heating element 4, 7 to the end face 28 a of which the heated surfaces of the heat insulating material 28 shown in FIG. 3 (c) It is easy to separate the heating surface 17 .

次に、請求項以外の技術的思想について実施形態の図面の符号を援用して説明する。 The following will be explained with reference to the sign of the drawings embodiments technical ideas other than claims.

請求項１または請求項２の発明を前提とする第６の発明（図１を参照）にかかる流体管用保温材熱融着具においては、取付部１ａで相対回動可能に支持されて互いに開閉することができる一対の加熱体４，７を有する加熱部材２を備え、この取付部１ａにおける回動中心線５ａの方向の両側で両加熱体４，７に設けた両側面１７には加熱手段１８により発熱される加熱面を設け、閉状態Ｑにある両加熱体４，７で取付部１ａにおける回動中心線５ａを中心とする回動方向Ｘで相対向する割縁部８には割孔９を形成している。第６の発明では、図３，４に示すように、内管２９の外表面２９ａを保温材２８により被覆した保温材付き流体管Ｍ１，Ｍ２において分断した両保温材２８を互いに接合する際、加熱部材２の閉状態Ｑで内管２９を両加熱体４，７の割孔９に嵌め込むとともに両加熱体４，７の側面１７を加熱面として保温材２８の端面２８ａに当てがってその端面２８ａを溶融させることができる。また、加熱部材２をコンパクトにまとめることができる。   In the heat insulating material heat sealing device for fluid pipes according to the sixth invention (see FIG. 1) based on the invention of claim 1 or claim 2, it is supported by the mounting portion 1a so as to be capable of relative rotation and opens and closes each other. The heating member 2 having a pair of heating bodies 4 and 7 that can be provided is provided, and both side surfaces 17 provided on both heating bodies 4 and 7 on both sides in the direction of the rotation center line 5a in the mounting portion 1a have heating means. A heating surface that generates heat is provided by the two heating elements 4 and 7 in the closed state Q, and the split edge portions 8 that face each other in the rotation direction X around the rotation center line 5a in the attachment portion 1a are split. A hole 9 is formed. In the sixth invention, as shown in FIGS. 3 and 4, when the two heat insulating materials 28 divided in the heat pipes M1 and M2 with the heat insulating material covering the outer surface 29a of the inner tube 29 with the heat insulating material 28 are joined together, When the heating member 2 is in the closed state Q, the inner tube 29 is fitted into the split holes 9 of both the heating bodies 4 and 7, and the side surface 17 of both the heating bodies 4 and 7 is applied to the end face 28a of the heat insulating material 28 as a heating surface. The end face 28a can be melted. Moreover, the heating member 2 can be put together compactly.

第６の発明を前提とする第７の発明（図１を参照）において、前記加熱部材２はホルダ１に設けた取付部１ａに支持され、このホルダ１には両加熱体４，７を互いに開閉させる開閉操作手段１０を設けている。第７の発明では、ホルダ１を把持して開閉操作手段１０を操作すると、両加熱体４，７を互いに開閉させることができる。 In a seventh invention based on the sixth invention (see FIG. 1 ), the heating member 2 is supported by a mounting portion 1a provided on the holder 1, and the heating element 4 is connected to the holder 1 with the two heating elements 4 and 7. Opening / closing operation means 10 for opening and closing is provided. In the seventh invention, when the holder 1 is gripped and the opening / closing operation means 10 is operated, both the heating elements 4 and 7 can be opened and closed.

第７の発明を前提とする第８の発明（図１を参照）において、前記ホルダ１は、前記加熱部材２を支持した取付部を有する頭部１ａと、その頭部１ａから屈曲して延びる把持部１ｂとを備え、前記両加熱体４，７は、その頭部１ａの取付部で、回動不能に支持された固定加熱体７と、この固定加熱体７に対し開閉するように回動可能に支持された可動加熱体４とからなり、この固定加熱体７は前記把持部１ｂの延設向き側に配設され、この可動加熱体４はその延設向きに対する反対側に配設されている。第８の発明では、加熱部材２の閉状態Ｑで内管２９や両保温材２８を両加熱体４，７の割孔９に嵌め込み易い。 In an eighth invention based on the seventh invention (see FIG. 1 ), the holder 1 has a head portion 1a having a mounting portion that supports the heating member 2, and a bent portion extending from the head portion 1a. The heating body 4, 7 is provided with a gripping portion 1 b, and the heating body 4, 7 is a mounting portion of the head 1 a, and is fixed so as to be unrotatable. The fixed heating body 7 is disposed on the extending direction side of the grip portion 1b, and the movable heating body 4 is disposed on the opposite side to the extending direction. Has been. In the eighth invention, it is easy to fit the inner tube 29 and the two heat insulating materials 28 into the split holes 9 of both the heating bodies 4 and 7 in the closed state Q of the heating member 2.

この発明は、熱融着接合の採用により両保温材の端面間に隙間が生じにくい流体管用保温材熱融着装置を提供することができる。 The inventions can provide a difficulty had flow body vessel for thermal insulation heat sealing device a gap between the end faces of the insulation material by employing heat fusion bonding.

まず、本発明の第１実施形態にかかる流体管用保温材熱融着装置について図１（ａ）（ｂ）（ｃ）及び図２を参照して説明する。
図１（ａ）（ｂ）（ｃ）に示すように、ホルダ１の頭部１ａ（取付部）の外側には加熱部材２が取り付けられている。この加熱部材２は、この頭部１ａで回動中心部としての支軸５により上下方向へ回動可能に支持された腕部３に対し取着された上側の加熱体４（可動加熱体）と、この頭部１ａから一体的に延設された腕部６に対し取着された下側の加熱体７（固定加熱体）とを備えている。下側の加熱体７はこの頭部１ａから屈曲して下方へ延びる把持部１ｂの延設向き（下向き）側に配設され、上側の加熱体４はその延設向きに対する反対向き（上向き）側に配設されている。上側の加熱体４と下側の加熱体７とは、それぞれ、半円の外周縁を有する板状をなし、加熱し易い金属等を主体として形成されている。支軸５の回動中心線５ａを中心とする回動方向Ｘで相対向する上下両加熱体４，７の割縁部８には半円状の割孔９が形成されている。 First, the heat insulating material heat fusion apparatus for fluid pipes according to the first embodiment of the present invention will be described with reference to FIGS. 1 (a), (b), (c) and FIG.
As shown in FIGS. 1A, 1 </ b> B, and 1 </ b> C, the heating member 2 is attached to the outside of the head 1 a (attachment portion) of the holder 1. The heating member 2 includes an upper heating body 4 (movable heating body) attached to an arm portion 3 supported by the head 1a so as to be pivotable in the vertical direction by a support shaft 5 serving as a pivot center. And a lower heating body 7 (fixed heating body) attached to the arm 6 integrally extending from the head 1a. The lower heating body 7 is disposed on the extending direction (downward) side of the grip portion 1b that is bent from the head 1a and extends downward, and the upper heating body 4 is opposite to the extending direction (upward). It is arranged on the side. Each of the upper heating body 4 and the lower heating body 7 has a plate shape having a semicircular outer peripheral edge, and is formed mainly of a metal that is easily heated. A semicircular split hole 9 is formed in the split edge portions 8 of the upper and lower heating bodies 4 and 7 facing each other in the rotation direction X about the rotation center line 5a of the support shaft 5.

前記ホルダ１内に組み付けられた開閉操作手段１０はリンク機構を主体としている。この開閉操作手段１０においては、把持部１ｂに対しその外側で隣接する操作レバー１１が支軸１２を中心に回動可能に支持され、この操作レバー１１と一体的に回動する連動レバー１３と、前記腕部３と一体的に回動する連動レバー１４とに対し連動リンク１５が連動軸１５ａ，１５ｂにより連結されている。従って、この操作レバー１１を図示しないばねの弾性力に抗して把持部１ｂ側へ押すと、連動レバー１３と連動リンク１５と連動レバー１４とを介して腕部３が支軸５の回動中心線５ａを中心に上方へ回動し、上側の加熱体４が下側の加熱体７に対し上方へ回動して加熱部材２が開く開状態Ｐとなる。また、この操作レバー１１を離すと、図示しないばねの弾性力により操作レバー１１が復帰して、連動レバー１３と連動リンク１５と連動レバー１４とを介して腕部３が支軸５の回動中心線５ａを中心に下方へ回動し、上側の加熱体４が下側の加熱体７に対し下方へ回動して加熱部材２が閉じる閉状態Ｑとなる。   The opening / closing operation means 10 assembled in the holder 1 mainly includes a link mechanism. In the opening / closing operation means 10, an operation lever 11 adjacent to the grip portion 1 b on the outside thereof is supported so as to be rotatable about a support shaft 12, and an interlocking lever 13 that rotates integrally with the operation lever 11 is provided. The interlocking link 15 is connected to the interlocking lever 14 that rotates integrally with the arm 3 by interlocking shafts 15a and 15b. Therefore, when the operating lever 11 is pushed toward the gripping portion 1b against the elastic force of a spring (not shown), the arm portion 3 rotates the support shaft 5 via the interlocking lever 13, the interlocking link 15, and the interlocking lever 14. The upper heating body 4 is rotated upward about the center line 5a, and the upper heating body 4 is rotated upward with respect to the lower heating body 7, so that the heating member 2 is opened. When the operation lever 11 is released, the operation lever 11 is restored by the elastic force of a spring (not shown), and the arm portion 3 rotates the support shaft 5 through the interlocking lever 13, the interlocking link 15, and the interlocking lever 14. Rotating downward about the center line 5a, the upper heating body 4 rotates downward relative to the lower heating body 7, and the heating member 2 is closed.

この加熱部材２の閉状態Ｑでは、上下両加熱体４，７の割縁部８が互いに重合されて、加熱部材２が円板状をなし、加熱部材２の中央部で割縁部８の割孔９により円形状の挿通孔１６が形成されるとともに、加熱部材２においてこの挿通孔１６の軸線方向の両側でこの挿通孔１６の外周全体に円形状の側面１７が形成される。この上下両加熱体４，７の両側面１７において加熱面の表側には、フッ素樹脂やシリコーン樹脂など、被加熱面に対する分離性の良い樹脂をコーティングしたシート１７ａが表面に貼着されている。また、フッ素樹脂やシリコーン樹脂など、被加熱面に対する分離性の良い樹脂を表面にコーティングしてもよい。上下両加熱体４，７内にはホルダ１内で図示しない電気配線と接続された加熱手段としての熱線によるヒータ１８が内蔵され、このヒータ１８により両側面１７が発熱して加熱面として機能する。また、この加熱部材２の開状態Ｐでは、上下両加熱体４，７の割縁部８が互いに離間するとともに、閉状態Ｑで前記挿通孔１６を形成する割孔９も互いに離間し、この割縁部８間に挿脱許容空間Ｓを形成することができる。   In the closed state Q of the heating member 2, the split edge portions 8 of the upper and lower heating bodies 4 and 7 are superposed on each other, the heating member 2 forms a disk shape, and the split edge portion 8 is formed at the center of the heating member 2. A circular insertion hole 16 is formed by the dividing hole 9, and a circular side surface 17 is formed on the entire outer periphery of the insertion hole 16 on both sides in the axial direction of the insertion hole 16 in the heating member 2. A sheet 17a 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 surface of the both side surfaces 17 of the upper and lower heating bodies 4 and 7 on the front side of the heating surface. Further, a resin having good separability with respect to the heated surface, such as a fluororesin or a silicone resin, may be coated on the surface. In both the upper and lower heating elements 4 and 7, a heater 18 is built in the holder 1 by a heat wire as a heating means connected to an electric wiring (not shown), and both side surfaces 17 generate heat by the heater 18 and function as a heating surface. . Further, in the open state P of the heating member 2, the split edge portions 8 of the upper and lower heating bodies 4 and 7 are separated from each other, and the split holes 9 that form the insertion holes 16 in the closed state Q are also separated from each other. An insertion / removal allowable space S can be formed between the split edges 8.

図２に示す流体管用保温材熱融着装置においては、図１（ａ）（ｂ）（ｃ）に示す流体管用保温材熱融着具を制御する下記の駆動制御手段を備えている。ホルダ１の頭部１ａの外側には電源表示灯１９と温度上昇表示灯２０（温度上昇認知部）と温度下降表示灯２１（温度下降認知部）と安全温度表示灯２２（安全温度認知部）と熱融着温度表示灯２３（熱融着温度認知部）とが設けられ、これらはコントローラ２４に接続されている。また、ホルダ１の頭部１ａの外側には温度上昇モードと温度下降モードとに切り替えることができる切替スイッチ２５が凹所２６内で設けられているとともに、ホルダ１の頭部１ａ内には流体管用保温材熱融着具の上下両加熱体４，７の温度を検出するヒータ温度センサ２７が設けられ、これらはコントローラ２４に接続されている。切替スイッチ２５を押すと、その切替信号に基づき、コントローラ２４はその切替動作ごとに温度上昇モードと温度下降モードとに交互に切り替える。温度上昇モードの場合、コントローラ２４は、温度上昇表示灯２０を点灯させて温度上昇中であることを知らせるとともに、ヒータ温度センサ２７が下限温度（例えば４５度）以下の安全温度範囲にあるか否かを判別して安全温度範囲にあれば安全温度表示灯２２を点灯させて知らせるか、または、ヒータ温度センサ２７が上限温度（例えば２６０度）以上の熱融着温度範囲にあるか否かを判別して熱融着温度範囲にあれば熱融着温度表示灯２３を点灯させて知らせる。温度下降モードの場合、コントローラ２４は、温度下降表示灯２１を点灯させて温度下降中であることを知らせるとともに、ヒータ温度センサ２７が上限温度（例えば２６０度）以上の熱融着温度範囲にあるか否かを判別して熱融着温度範囲にあれば熱融着温度表示灯２３を点灯させて知らせるか、または、ヒータ温度センサ２７が下限温度（例えば４５度）以下の安全温度範囲にあるか否かを判別して安全温度範囲にあれば安全温度表示灯２２を点灯させて知らせる。   The fluid pipe heat insulating material heat fusion apparatus shown in FIG. 2 includes the following drive control means for controlling the fluid pipe heat insulation material heat fusion tool shown in FIGS. 1 (a), (b), and (c). On the outside of the head 1a of the holder 1, a power indicator lamp 19, a temperature rise indicator lamp 20 (temperature rise recognition unit), a temperature drop indicator lamp 21 (temperature drop recognition unit), and a safe temperature indicator lamp 22 (safe temperature recognition unit). And a heat fusion temperature indicator lamp 23 (heat fusion temperature recognition unit), which are connected to the controller 24. A changeover switch 25 that can be switched between a temperature increase mode and a temperature decrease mode is provided in the recess 26 outside the head 1a of the holder 1, and a fluid is provided in the head 1a of the holder 1. A heater temperature sensor 27 is provided for detecting the temperature of the upper and lower heating elements 4 and 7 of the heat insulating material heat fusion tool for pipes, and these are connected to the controller 24. When the changeover switch 25 is pressed, the controller 24 alternately switches between the temperature increase mode and the temperature decrease mode for each switching operation based on the switching signal. In the temperature increase mode, the controller 24 turns on the temperature increase indicator lamp 20 to notify that the temperature is increasing and whether the heater temperature sensor 27 is within a safe temperature range equal to or lower than the lower limit temperature (for example, 45 degrees). If the temperature is within the safe temperature range, the safety temperature indicator lamp 22 is turned on to notify, or whether the heater temperature sensor 27 is in the heat fusion temperature range of the upper limit temperature (for example, 260 degrees) or more. If it is determined and the temperature is within the heat fusion temperature range, the heat fusion temperature indicator lamp 23 is turned on to notify the user. In the temperature lowering mode, the controller 24 turns on the temperature lowering indicator lamp 21 to notify that the temperature is lowering, and the heater temperature sensor 27 is in the heat sealing temperature range equal to or higher than the upper limit temperature (for example, 260 degrees). And if it is within the heat fusion temperature range, the heat fusion temperature indicator lamp 23 is turned on to notify, or the heater temperature sensor 27 is in the safe temperature range below the lower limit temperature (for example, 45 degrees). If it is within the safe temperature range, the safe temperature indicator lamp 22 is lit to notify.

次に、これらの流体管用保温材熱融着具を利用して接合した保温材付き流体管及びその接合手順について図３（ａ）（ｂ）（ｃ）（ｄ）及び図４を参照して説明する。
図３（ａ）に示すように、発泡ポリエチレン等の断熱材からなる円筒状の保温材２８により、樹脂や銅等からなる内管２９の外表面２９ａを被覆した流体管Ｍ１，Ｍ２は、内管２９の長手方向の両側で分断されている。内管２９の外表面２９ａと保温材２８の内周面との間に隙間Ｇをあけることにより、拡管部や曲がり部において内管２９を保温材２８に挿通し易くしている。これらの流体管Ｍ１，Ｍ２を互いに接続する際には、まず、図３（ｂ）に示すように、内管２９に対し保温材２８を長手方向へ移動させて両保温材２８の相対向する端面２８ａを互いに離すとともに、両保温材２８間で露出した内管２９を互いに連結する。次に、図１に示す前記熱融着具の加熱部材２を開状態Ｐにして上下両加熱体４，７の割縁部８間で挿脱許容空間Ｓに内管２９を挿入した後、この加熱部材２を閉状態Ｑにすると、内管２９が挿通孔１６に嵌め込まれる。その後、図３（ｃ）に示すように加熱部材２における上下両加熱体４，７の両側面１７のシート１７ａに両保温材２８の端面２８ａを押し当てると、それらの端面２８ａが同時に加熱されて溶融される。次に、加熱部材２を開状態Ｐにして上下両加熱体４の割縁部８間の挿脱許容空間Ｓから内管２９を離脱させると、図３（ｄ）に示すように、溶融状態にある両保温材２８の端面２８ａが長手方向で相対向する。このようにして熱融着具の加熱部材２を両保温材２８の端面２８ａから取り外した後瞬時に、溶融状態にある両保温材２８の端面２８ａを互いに押し当てると、図４に示すように、その両端面２８ａが互いに熱融着されて接合され、内管２９の外周全体に熱融着による継ぎ目３０が生じる。 Next, with reference to FIGS. 3 (a), (b), (c), (d) and FIG. 4, a description will be given of a fluid tube with a heat insulating material joined using these heat insulation materials for fluid tubes and a joining procedure thereof. explain.
As shown in FIG. 3A, the fluid pipes M1 and M2 in which the outer surface 29a of the inner pipe 29 made of resin, copper, or the like is covered with a cylindrical heat insulating material 28 made of a heat insulating material such as polyethylene foam, The tube 29 is divided on both sides in the longitudinal direction. By providing a gap G between the outer surface 29a of the inner tube 29 and the inner peripheral surface of the heat insulating material 28, the inner tube 29 can be easily inserted into the heat insulating material 28 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. 3 (b), the heat insulating material 28 is moved in the longitudinal direction with respect to the inner tube 29 so that the two heat insulating materials 28 face each other. The end surfaces 28a are separated from each other, and the inner pipes 29 exposed between the heat insulating materials 28 are connected to each other. Next, after the heating member 2 of the heat fusion tool shown in FIG. 1 is in an open state P, the inner tube 29 is inserted into the insertion / removal-allowable space S between the split edges 8 of the upper and lower heating bodies 4, 7, When the heating member 2 is in the closed state Q, the inner tube 29 is fitted into the insertion hole 16. Thereafter, as shown in FIG. 3 (c), when the end surfaces 28a of the two heat insulating materials 28 are pressed against the sheets 17a on the both side surfaces 17 of the upper and lower heating bodies 4 and 7 in the heating member 2, the end surfaces 28a are simultaneously heated. And melted. Next, when the heating member 2 is in the open state P and the inner tube 29 is removed from the insertion / removal allowable space S between the split edges 8 of the upper and lower heating bodies 4, as shown in FIG. The end surfaces 28a of the two heat insulating materials 28 are opposed to each other in the longitudinal direction. As shown in FIG. 4, when the end surfaces 28a of the two heat insulating materials 28 in the molten state are pressed against each other immediately after the heating member 2 of the heat fusion tool 2 is removed from the end surfaces 28a of the two heat insulating materials 28 in this way. The both end faces 28a are heat-sealed and joined together, and a seam 30 is formed on the entire outer periphery of the inner tube 29 by heat-sealing.

次に、本発明の第２実施形態にかかる流体管用保温材熱融着具について第１実施形態との相違点を中心に図６（ａ）（ｂ）を参照して説明する。
第２実施形態では、第１実施形態の加熱部材２の形態を変更し、閉状態Ｑにある上下両加熱体４，７における割孔９の相対向内面には加熱手段により発熱される加熱面が設けられている。この割孔９の相対向内面において加熱面の表側には、フッ素樹脂やシリコーン樹脂など、被加熱面に対する分離性の良い樹脂をコーティングしたシート９ａが表面に貼着されている。また、フッ素樹脂やシリコーン樹脂など、被加熱面に対する分離性の良い樹脂を表面にコーティングしてもよい。第２実施形態にかかる流体管用保温材熱融着具においても、第１実施形態と同様に、その流体管用保温材熱融着具を制御する前記駆動制御手段を備えている。 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 FIGS. 6 (a) and 6 (b), focusing on differences from the first embodiment.
In the second embodiment, the form of the heating member 2 of the first embodiment is changed, and the heating surface that generates heat by the heating means is formed on the opposite inner surfaces of the dividing holes 9 in the upper and lower heating bodies 4 and 7 in the closed state Q. Is provided. A sheet 9a 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 surface of the opposed inner surface of the split hole 9 on the front side of the heating surface. Further, a resin having good separability with respect to the heated surface, such as a fluororesin or a silicone resin, may be coated on the surface. Similarly to the first embodiment, the fluid pipe heat insulating material thermal fusion tool according to the second embodiment includes the drive control means for controlling the fluid pipe thermal insulation material thermal fusion tool.

次に、第２実施形態にかかる流体管用保温材熱融着具を利用して接合した保温材付き流体管及びその接合手順について図７（ａ）（ｂ）（ｃ）（ｄ）を参照して説明する。
図７（ａ）に示すように、互いに連結した内管２９の長手方向の両側で分断した両保温材２８により内管２９の外表面２９ａを被覆した状態において、その長手方向で相対向する両端面２８ａを互いに押し当てる。次に、図７（ｂ）に示すように、その両端面２８ａを囲む外周面にテープ３１を巻く。このテープ３１の内周面には熱溶融接着樹脂が塗布されている。次に、図６に示す前記熱融着具の加熱部材２を開状態Ｐにして上下両加熱体４，７の割縁部８間で挿脱許容空間Ｓに両保温材２８を挿入した後、この加熱部材２を閉状態Ｑにすると、両保温材２８が挿通孔１６に嵌め込まれる。その後、図７（ｃ）に示すように上下両加熱体４，７の割孔９のシート９ａにテープ３１の外周面を押し当てると、テープ３１の内周面の熱溶融接着樹脂とその内周面に接する両保温材２８の外周面とが加熱されて溶融される。次に、加熱部材２を開状態Ｐにして上下両加熱体４の割縁部８間の挿脱許容空間Ｓから両保温材２８を離脱させると、図７（ｄ）に示すように、両保温材２８の端面２８ａが互いに押し当てられた状態で、テープ３１の内周面と両保温材２８の外周面とが互いに熱融着されて接合され、その両端面２８ａの外周を塞ぐように熱融着による接合部３１ａが生じる。 Next, referring to FIGS. 7 (a), (b), (c), and (d) regarding the fluid tube with the heat insulating material joined using the heat insulating material heat fusion tool for the fluid pipe according to the second embodiment and the joining procedure thereof. I will explain.
As shown in FIG. 7 (a), in the state where the outer surface 29a of the inner tube 29 is covered with both heat insulating materials 28 divided on both sides in the longitudinal direction of the inner tube 29 connected to each other, both ends opposite to each other in the longitudinal direction. The surfaces 28a are pressed against each other. Next, as shown in FIG. 7B, a tape 31 is wound around the outer peripheral surface surrounding both end faces 28a. A hot-melt adhesive resin is applied to the inner peripheral surface of the tape 31. Next, after the heating member 2 of the thermal fusion tool shown in FIG. 6 is in the open state P, both the heat insulating materials 28 are inserted into the insertion / removal allowable space S between the split edges 8 of the upper and lower heating bodies 4, 7. When the heating member 2 is in the closed state Q, both the heat insulating materials 28 are fitted into the insertion holes 16. After that, when the outer peripheral surface of the tape 31 is pressed against the sheet 9a of the dividing hole 9 of the upper and lower heating bodies 4 and 7, as shown in FIG. The outer peripheral surfaces of both heat insulating materials 28 in contact with the peripheral surfaces are heated and melted. Next, when the heating member 2 is opened and the heat insulating material 28 is removed from the insertion / removal allowable space S between the split edges 8 of the upper and lower heating bodies 4, as shown in FIG. In a state where the end surfaces 28a of the heat insulating material 28 are pressed against each other, the inner peripheral surface of the tape 31 and the outer peripheral surfaces of both the heat insulating materials 28 are bonded by heat fusion to each other so as to block the outer periphery of the both end surfaces 28a. A joint 31a is formed by heat fusion.

前記各実施形態は下記の特徴を有している。
＊ 第１実施形態では、流体管用保温材熱融着具における加熱部材２の温度状態、すなわち、加熱部材２が温度上昇中か温度下降中かの判別や、加熱部材２が上限温度（例えば２６０度）以上の熱融着温度範囲にあるか否か下限温度（例えば４５度）以下の安全温度範囲にあるか否かの判別などを確認しながら接合作業を行うことができる。従って、流体管用保温材熱融着具の使い勝手を良くして接合作業を円滑に行うことができる。 Each of the above embodiments has the following characteristics.
* In the first embodiment, the temperature state of the heating member 2 in the heat insulating material heat fusion tool for fluid pipes, that is, whether the heating member 2 is rising or falling, or the heating member 2 is at the upper limit temperature (for example, 260) It is possible to perform the joining operation while confirming whether or not the temperature is in the heat fusion temperature range above or below the lower limit temperature (for example, 45 degrees) or below. Accordingly, it is possible to improve the usability of the heat insulating material heat fusion tool for fluid pipes and perform the joining operation smoothly.

＊ 第１実施形態では、上下両加熱体４，７の側面１７（加熱面）にフッ素樹脂コーティングシ−ト１７ａが貼着されているため、その側面１７（加熱面）を保温材２８の端面２８ａから分離させ易い。第２実施形態では、テープ３１の全体を熱溶融接着樹脂により成形してもよく、その場合にはテープ３１の外周面も熱溶融されるが、上下両加熱体４，７の割孔９の内面（加熱面）にはフッ素樹脂コーティングシ−ト９ａが貼着されているため、その割孔９の内面（加熱面）をテープ３１の外周面から分離させ易い。これらのフッ素樹脂コーティングシート１７ａ，９ａは耐久性低下に応じて適宜張替える。   * In 1st Embodiment, since the fluororesin coating sheet 17a is stuck on the side surface 17 (heating surface) of the upper and lower heating bodies 4 and 7, the side surface 17 (heating surface) is used as the end surface of the heat insulating material 28. Easy to separate from 28a. In the second embodiment, the entire tape 31 may be formed by a hot-melt adhesive resin, and in this case, the outer peripheral surface of the tape 31 is also melted by heat. Since the fluororesin coating sheet 9 a is adhered to the inner surface (heating surface), the inner surface (heating surface) of the split hole 9 can be easily separated from the outer peripheral surface of the tape 31. These fluororesin coating sheets 17a and 9a are appropriately replaced according to a decrease in durability.

＊ 第１実施形態では、両保温材２８の端面２８ａが互いに熱融着されて接合されているので、それらの端面２８ａが互いに分離しにくくなり、両保温材２８間の継ぎ目３０に隙間が生じにくくなる。従って、内管２９の外表面２９ａに結露が生じにくくなって漏水の発生を防止することができる。その継ぎ目３０においては、内管２９の外周全体で両保温材２８の端面２８ａが熱融着されているので、隙間がより一層生じにくくなる。   * In the first embodiment, since the end surfaces 28a of the two heat insulating materials 28 are bonded by heat fusion to each other, the end surfaces 28a are difficult to separate from each other, and a gap is formed in the joint 30 between the two heat insulating materials 28. It becomes difficult. Accordingly, condensation is unlikely to occur on the outer surface 29a of the inner tube 29, and the occurrence of water leakage can be prevented. In the joint 30, the end faces 28 a of both the heat insulating materials 28 are heat-sealed over the entire outer periphery of the inner tube 29, so that a gap is less likely to occur.

＊ 第２実施形態では、テープ３１の内周面と両保温材２８の外周面とが互いに熱融着されて接合されているので、両保温材２８の端面２８ａを囲うテープ３１が両保温材２８から剥がれにくくなり、両保温材２８の端面２８ａ間に隙間が生じにくくなる。従って、内管２９の外表面２９ａに結露が生じにくくなって漏水の発生を防止することができる。テープ３１は両保温材２８の外周全体で熱融着されているので、隙間がより一層生じにくくなる。   * In the second embodiment, since the inner peripheral surface of the tape 31 and the outer peripheral surface of the two heat insulating materials 28 are bonded by heat fusion to each other, the tape 31 surrounding the end surfaces 28a of the two heat insulating materials 28 is the both heat insulating materials. It becomes difficult to peel from 28, and it becomes difficult to produce a clearance gap between the end surfaces 28a of both the heat insulating materials 28. Accordingly, condensation is unlikely to occur on the outer surface 29a of the inner tube 29, and the occurrence of water leakage can be prevented. Since the tape 31 is heat-sealed over the entire outer periphery of both the heat insulating materials 28, a gap is further less likely to occur.

＊ 第１実施形態では、加熱部材２の閉状態Ｑで内管２９を上下両加熱体４，７間の挿通孔１６に嵌め込むので、加熱部材２を内管２９に対し安定して保持した状態で、上下両加熱体４，７の側面１７を加熱面として保温材２８の端面２８ａに当てがってその端面２８ａを溶融させることができ、作業が行い易くなる。また、上下両加熱体４，７の側面１７が加熱面として内管２９の外周全体にあるので、両保温材２８の端面２８ａ間の熱融着面積を広げることができる。   * In the first embodiment, since the inner tube 29 is fitted into the insertion hole 16 between the upper and lower heating bodies 4 and 7 in the closed state Q of the heating member 2, the heating member 2 is stably held with respect to the inner tube 29. In this state, the side surfaces 17 of the upper and lower heating bodies 4 and 7 can be applied to the end surface 28a of the heat insulating material 28 as the heating surface, and the end surface 28a can be melted. Further, since the side surfaces 17 of the upper and lower heating bodies 4 and 7 are on the entire outer periphery of the inner tube 29 as heating surfaces, the heat-sealing area between the end surfaces 28a of the two heat insulating materials 28 can be increased.

＊ 第２実施形態では、加熱部材２の閉状態Ｑで両保温材２８を上下両加熱体４，７間の挿通孔１６に嵌め込むので、加熱部材２を両保温材２８に対し安定して保持した状態で、上下両加熱体４，７の割孔９の内面を加熱面としてテープ３１の外周面に当てがってテープ３１の内周面を溶融させることができ、作業が行い易くなる。また、上下両加熱体４，７の割孔９の内面が加熱面としてテープ３１の外周全体にあるので、テープ３１の内周面の熱融着面積を広げることができる。   * In the second embodiment, since both the heat insulating materials 28 are fitted into the insertion holes 16 between the upper and lower heating bodies 4 and 7 when the heating member 2 is in the closed state Q, the heating member 2 is stably attached to both the heat insulating materials 28. In the held state, the inner peripheral surface of the tape 31 can be melted by applying the inner surface of the split holes 9 of the upper and lower heating elements 4 and 7 to the outer peripheral surface of the tape 31 as a heating surface, and the work becomes easy. . Moreover, since the inner surface of the dividing hole 9 of both the upper and lower heating elements 4 and 7 is on the entire outer periphery of the tape 31 as a heating surface, the heat fusion area of the inner peripheral surface of the tape 31 can be increased.

＊ ホルダ１を把持して開閉操作手段１０を操作すると、上下両加熱体４，７に直接的に触れることなく上下両加熱体４，７を互いに開閉させることができ、作業が行い易くなる。   * When the holder 1 is gripped and the opening / closing operation means 10 is operated, the upper and lower heating bodies 4 and 7 can be opened and closed with respect to each other without directly touching the upper and lower heating bodies 4 and 7, thereby facilitating the operation.

前記各実施形態以外にも下記のように構成してもよい。
・ 温度上昇認知部としての温度上昇表示灯２０や温度下降認知部としての温度下降表示灯２１や安全温度認知部としての安全温度表示灯２２や熱融着温度認知部としての熱融着温度表示灯２３における点灯に代えて、ブザーなどの他の認知手段を採用する。 In addition to the above embodiments, the following configuration may be adopted.
A temperature rise indicator 20 as a temperature rise recognition unit, a temperature drop indicator 21 as a temperature fall recognition unit, a safety temperature indicator 22 as a safe temperature recognition unit, and a heat fusion temperature display as a heat fusion temperature recognition unit Instead of lighting in the lamp 23, other recognition means such as a buzzer is adopted.

・ 加熱部材２における加熱手段としては、熱線によるヒータ１８に代えて、上下両加熱体４，７の加熱面（第１実施形態の側面１７、第２実施形態の割孔９の内面）を加熱することができるものであればよく、例えば、その加熱面に形成した多数の小孔からガスによる熱風を噴出させたり、ヒータ１８の電源を電池にしたりすることができる。また、タングステンやモリブデンの粉末をペースト状にしてアルミナの全面に略均一に印刷したものを上記熱線に代わる抵抗体として採用する。   As the heating means in the heating member 2, the heating surfaces of the upper and lower heating bodies 4 and 7 (the side surface 17 of the first embodiment and the inner surface of the dividing hole 9 of the second embodiment) are heated instead of the heater 18 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 power source of the heater 18 can be 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.

・ 加熱部材２としては、開状態で互いに分離可能な複数の加熱体を閉状態で互いに組み付けて内管２９に装着する。
・ 加熱部材２に対する開閉操作手段１０としては、前述したリンク機構に代えて、上下両加熱体４，７を互いに開閉させることができる指当て摘みを設ける。 As the heating member 2, a plurality of heating bodies that are separable from each other in the open state are assembled to each other in the closed state and attached to the inner tube 29.
As the opening / closing operation means 10 for the heating member 2, instead of the above-described link mechanism, a finger pad that can open and close the upper and lower heating bodies 4, 7 is provided.

・ 前記各実施形態では加熱部材２の上下両加熱体４，７は１８０度の円周角度を有しているが、例えば上下両加熱体４，７を９０度の円周角度で形成してもよい。その場合、閉状態Ｑでこの上下両加熱体４，７間に生じる挿通孔１６は外側に開放された空間となり、その空間に挿入された内管２９がこの上下両加熱体４，７により挟まれる。この上下両加熱体４，７の加熱面（第１実施形態の側面１７）を保温材２８の端面２８ａに当てがった状態で加熱部材２を回動させてその端面２８ａを溶融させる。また、この上下両加熱体４，７の加熱面（第２実施形態の割孔９の内面）をテープ３１の外周面に当てがった状態で加熱部材２を回動させてそのテープ３１の内周面を溶融させる。   In the above-described embodiments, the upper and lower heating bodies 4 and 7 of the heating member 2 have a circumferential angle of 180 degrees. For example, the upper and lower heating bodies 4 and 7 are formed at a circumferential angle of 90 degrees. Also good. In that case, the insertion hole 16 formed between the upper and lower heating bodies 4 and 7 in the closed state Q becomes a space opened to the outside, and the inner tube 29 inserted in the space is sandwiched between the upper and lower heating bodies 4 and 7. It is. The heating member 2 is rotated in a state where the heating surfaces (side surfaces 17 of the first embodiment) of the upper and lower heating bodies 4 and 7 are applied to the end surface 28a of the heat insulating material 28, and the end surface 28a is melted. Further, the heating member 2 is rotated in a state where the heating surfaces of the upper and lower heating bodies 4 and 7 (the inner surface of the dividing hole 9 of the second embodiment) are applied to the outer peripheral surface of the tape 31, and the tape 31 Melt the inner peripheral surface.

（ａ）は第１実施形態にかかる流体管用保温材熱融着装置において流体管用保温材熱融着具の加熱部材の閉状態を概略的に示す一部切欠き側面図であり、（ｂ）は同じく開状態を概略的に示す一部切欠き側面図であり、（ｃ）は（ａ）を正面側から見て加熱部材のみを示す部分正面図である。(A) is a partially cutaway side view schematically showing a closed state of a heating member of a heat insulating material heat fusion tool for fluid pipes in the heat insulation material heat fusion equipment for fluid pipes according to the first embodiment, (b) FIG. 5 is a partially cutaway side view schematically showing the open state, and FIG. 5C is a partial front view showing only the heating member when FIG. 第１実施形態にかかる流体管用保温材熱融着装置において駆動制御手段を示す側面図である。It is a side view which shows a drive control means in the heat insulating material heat fusion apparatus for fluid pipes concerning 1st Embodiment. （ａ）（ｂ）（ｄ）は分断された保温材付き流体管を第１実施形態の流体管用保温材熱融着具を利用して互いに接合する過程を正面側から見て示す部分縦断面図であり、（ｃ）は同じく部分平面図である。(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. 本実施形態にかかる保温材付き流体管の一部を示す縦断面図である。It is a longitudinal cross-sectional view which shows a part of fluid pipe | tube with a heat insulating material concerning this embodiment. 従来の保温材付き流体管の一部を示す縦断面図である。It is a longitudinal cross-sectional view which shows a part of conventional fluid pipe | tube with a heat insulating material. （ａ）は第２実施形態にかかる流体管用保温材熱融着装置において流体管用保温材熱融着具の加熱部材の閉状態を概略的に示す一部切欠き側面図であり、（ｂ）は同じく開状態を概略的に示す一部切欠き側面図である。(A) is a partially cutaway side view schematically showing a closed state of a heating member of a heat insulating material heat fusion member for fluid pipes in a heat insulation material heat fusion material for fluid pipes according to a second embodiment, (b) FIG. 3 is a partially cutaway side view schematically showing the open state. （ａ）（ｂ）（ｄ）は分断された保温材付き流体管を第２実施形態の流体管用保温材熱融着具を利用して互いに接合する過程を正面側から見て示す部分縦断面図であり、（ｃ）は同じく部分平面図である。(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.

符号の説明Explanation of symbols

１…ホルダ、１ａ…取付部を有する頭部、２…加熱部材、４…可動加熱体、５ａ…回動中心線、７…固定加熱体、８…割縁部、９…加熱面として内面を有する割孔、９ａ…シート、１７…加熱面としての側面、１７ａ…シート、１８…加熱手段としてのヒータ、２０…温度上昇認知部としての温度上昇表示灯、２１…温度下降認知部としての温度下降表示灯、２２…安全温度認知部としての安全温度表示灯、２３…熱融着温度認知部としての熱融着温度表示灯、２５…切替スイッチ、２７…ヒータ温度センサ、２８…保温材、２８ａ…端面、２９…内管、２９ａ…外表面、３１…テープ、３１ａ…接合部、Ｍ１，Ｍ２…流体管、Ｐ…開状態、Ｑ…閉状態、Ｘ…回動方向。   DESCRIPTION OF SYMBOLS 1 ... Holder, 1a ... Head part with attachment part, 2 ... Heating member, 4 ... Movable heating body, 5a ... Turning center line, 7 ... Fixed heating body, 8 ... Split edge part, 9 ... Inside surface as heating surface Split holes having, 9a ... sheet, 17 ... side face as heating surface, 17a ... sheet, 18 ... heater as heating means, 20 ... temperature rise indicator as temperature rise recognition part, 21 ... temperature as temperature fall recognition part Lowering indicator lamp, 22 ... Safety temperature indicator lamp as safety temperature recognition section, 23 ... Thermal fusion temperature indicator lamp as thermal fusion temperature recognition section, 25 ... Changeover switch, 27 ... Heater temperature sensor, 28 ... Insulation material, 28a ... end face, 29 ... inner tube, 29a ... outer surface, 31 ... tape, 31a ... junction, M1, M2 ... fluid pipe, P ... open state, Q ... closed state, X ... rotational direction.

Claims (2)

加熱手段により発熱される一対の加熱体を取付部で相対回動可能に支持されて互いに開閉することができる加熱部材と、前記加熱部材を支持し把持部を有するホルダと、このホルダには前記把持部の外側に隣接し前記加熱体を互いに開閉させる開閉操作手段である操作レバーを備えた流体管用保温材熱融着具と、該ホルダ内に設けられてその流体管用保温材熱融着具を制御する駆動制御手段とを備え、
前記流体管用保温材熱融着具には、閉状態にある両加熱体において取付部における回動中心線を中心とする回動方向で相対向する割縁部には挿通孔を形成する割孔を有し、この両加熱体の両側面には加熱手段により発熱される加熱面を設け、
前記開閉操作手段の操作により前記各加熱体を開状態で形成された前記挿通孔の空間には、内管の外表面を被覆する両保温材の端面間に露出した内管を嵌め込むことができ、前記各加熱体を閉状態で形成された前記挿通孔には、両保温材の端面間に露出した内管を嵌め込み、該各加熱体の加熱面に両保温材の端面を押し当て両保温材の端面を熱溶融させ、
前記駆動制御手段においては、流体管用保温材熱融着具の加熱体の温度を検出する温度センサと、
その温度センサによる検出温度が上昇中であることを知らせる温度上昇認知部と、
その温度センサによる検出温度が下降中であることを知らせる温度下降認知部と、
その温度センサによる検出温度が下限温度以下の安全温度範囲であることを知らせる安全温度認知部と、
その温度センサによる検出温度が上限温度以上の熱融着温度範囲であることを知らせる熱融着温度認知部と、
温度上昇モードと温度下降モードとに切り替えることができる切替スイッチとを備え、
切替スイッチにより設定された温度上昇モードでは、温度上昇認知部により上昇中であることを知らせるとともに、安全温度認知部により安全温度範囲であることを知らせるか、または、熱融着温度認知部により熱融着温度範囲であることを知らせ、
切替スイッチにより設定された温度下降モードでは、温度下降認知部により下降中であることを知らせるとともに、熱融着温度認知部により熱融着温度範囲であることを知らせるか、または、安全温度認知部により安全温度範囲であることを知らせることを特徴とする流体管用保温材熱融着装置。 A heating member that can be opened and closed to each other to be relatively rotatably supported a pair of heating body mounting portion that is heated by heating means, a holder having a heating member supporting gripper, said in the holder A heat insulating material heat fusion tool for fluid pipes provided with an operation lever that is an opening / closing operation means adjacent to the outside of the gripping portion and opens and closes the heating elements, and the heat insulation material heat insulation material for fluid pipes provided in the holder Drive control means for controlling
In the heat insulating material heat fusion tool for fluid pipes, there is a split hole that forms an insertion hole in the split edges facing each other in the rotation direction around the rotation center line of the mounting portion in both heating bodies in the closed state And provided with heating surfaces that generate heat by the heating means on both side surfaces of both heating elements,
An inner pipe exposed between the end surfaces of both heat insulating materials covering the outer surface of the inner pipe may be fitted into the space of the insertion hole formed by opening and closing each heating element by the opening / closing operation means. The inner holes exposed between the end faces of the two heat insulating materials are fitted into the insertion holes formed with the respective heating bodies closed, and both end faces of the heat insulating materials are pressed against the heating surfaces of the respective heating bodies. Heat-melt the end face of the insulation,
In the drive control means, a temperature sensor that detects the temperature of the heating body of the heat insulating material heat fusion tool for fluid pipes;
A temperature rise recognition unit for notifying that the temperature detected by the temperature sensor is rising;
A temperature decrease recognition unit for notifying that the temperature detected by the temperature sensor is decreasing;
A safety temperature recognition unit that informs that the temperature detected by the temperature sensor is within the safe temperature range below the lower limit temperature,
A thermal fusion temperature recognition unit that informs that the temperature detected by the temperature sensor is in the thermal fusion temperature range above the upper limit temperature;
A changeover switch that can be switched between a temperature rise mode and a temperature drop mode;
In the temperature rise mode set by the changeover switch, the temperature rise recognition unit notifies that the temperature is rising, the safety temperature recognition unit notifies that the temperature is within the safe temperature range, or the heat fusion temperature recognition unit detects heat. Inform the fusing temperature range,
In the temperature lowering mode set by the changeover switch, the temperature lowering recognition unit informs that the temperature lowering is in progress and the heat fusion temperature recognition unit informs that the temperature is within the heat fusion temperature range, or the safety temperature recognition unit. Insulating that the temperature is within the safe temperature range, the heat insulating material heat fusion device for fluid pipes. 前記流体管用保温材熱融着具の加熱部材において各加熱体の加熱面の表側には、被加熱面に対する分離性の良いフッ素樹脂又はシリコーン樹脂を有する表面を設けたことを特徴とする請求項１に記載の流体管用保温材熱融着装置。 The surface of the heating member of the heat insulating material heat fusion tool for the fluid pipe is provided with a surface having a fluororesin or a silicone resin having good separability with respect to the surface to be heated on the front side of the heating surface of each heating element. The heat insulating material heat fusion apparatus for fluid pipes according to 1.
JP2007007267A 2007-01-16 2007-01-16 Heat insulation material for heat insulation material for fluid pipes Expired - Fee Related JP5139682B2 (en)

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