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JP5000414B2 - Covering material heat sealer for pipe members - Google Patents
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JP5000414B2 - Covering material heat sealer for pipe members - Google Patents

Covering material heat sealer for pipe members Download PDF

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Publication number
JP5000414B2
JP5000414B2 JP2007198953A JP2007198953A JP5000414B2 JP 5000414 B2 JP5000414 B2 JP 5000414B2 JP 2007198953 A JP2007198953 A JP 2007198953A JP 2007198953 A JP2007198953 A JP 2007198953A JP 5000414 B2 JP5000414 B2 JP 5000414B2
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Prior art keywords
heating
valley
covering material
material heat
mountain
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JP2009034835A (en
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博之 東谷
一就 春名
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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
    • B29C66/80—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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8182—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects
    • B29C66/81821—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects of the welding jaws
    • 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
    • B29C66/50—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
    • 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
    • B29C66/81—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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—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 being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • 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
    • B29C66/80—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)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

本発明は、例えば、内管の外表面を保温材により被覆した空調配管などの保温材付き流体管において、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具などの管部材用被覆材熱融着具に関するものである。   The present invention is used, for example, in joining a heat insulating material with a heat insulating material such as an air-conditioning pipe whose outer surface is coated with a heat insulating material between the heat insulating materials divided on both sides in the longitudinal direction of the inner tube. The present invention relates to a coating member heat-sealing tool for pipe members such as a heat insulating material heat-sealing tool for fluid pipes.

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１０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の外周に粘着テープ３１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 tube with a heat insulating material having dew condensation prevention means, as shown in FIG. 10, the outer surface 29a of the inner tube 29 is covered with a heat insulating material 28 made of foamed polyethylene or the like, and on both sides of the inner tube 29 in the longitudinal direction. An adhesive tape 31 is wound around the outer periphery of the opposite end surfaces 28a at the joint 30 between the end surfaces 28a of the divided heat insulating materials 28.
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３１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 31 is peeled off, and a gap is formed in the joint 30 between the two heat insulating materials 28, and the gap between the inner pipe 29 and the outer heat insulating material 28 is generated. In some cases, the surface 29a was exposed to cause condensation. If the condensed water leaked into the building, it caused water leakage.

そこで、本出願人は、平成１８年４月６日付け出願（特願２００６−１０５３７６号）において、内管の長手方向の両側で分断した両保温材の相対向端面を加熱部材により互いに熱融着して接合した継ぎ目を設ける際に利用する流体管用保温材熱融着具を提供している。   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.

一般に、発泡ポリエチレン等からなる両保温材２８の端面２８ａにおいては、切断時に僅かな凹凸や傾斜面が生じたりしていることが多い。そのため、両保温材２８の端面２８ａを前記流体管用保温材熱融着具の加熱部材の加熱面に押し当てると、その端面２８ａと加熱面との間に隙間が生じ易くなって端面２８ａには加熱面に接触されない部分が生じる。その部分では端面２８ａを十分に熱溶融することができないので、両端面２８ａ間の熱融着強度が劣るおそれがあった。そこで、端面２８ａにおいて熱溶融の不十分な部分を加熱面に押し当て直す必要があった。   In general, the end surfaces 28a of both heat insulating materials 28 made of foamed polyethylene or the like often have slight irregularities or inclined surfaces during cutting. Therefore, when the end surfaces 28a of both the heat insulating materials 28 are pressed against the heating surface of the heating member of the fluid pipe heat insulating material heat fusion tool, a gap is easily generated between the end surfaces 28a and the heating surface, and the end surfaces 28a The part which is not contacted with a heating surface arises. At that portion, the end face 28a cannot be sufficiently melted by heat, so that the heat-sealing strength between the both end faces 28a may be inferior. Therefore, it has been necessary to press the insufficiently melted portion of the end surface 28a against the heating surface.

この発明は、このような流体管用保温材熱融着具のほか、流体管以外の管部材の内管の外表面を被覆した被覆材のうち内管の長手方向の両側で分断した両被覆材間を接合する際に利用する各種の管部材用被覆材熱融着具において、加熱部材の加熱面の形態を改良することにより、両被覆材の端面に対する熱溶融を十分に行って両端面間の熱融着強度を高め、管部材用被覆材熱融着具の使い勝手を良くすることを目的としている。   In addition to such a heat insulating material heat fusion tool for fluid pipes, the present invention provides both covering materials divided on both sides in the longitudinal direction of the inner pipe among the covering materials covering the outer surface of the inner pipe of the pipe member other than the fluid pipe In various types of covering material heat-sealing tools for pipe members used when joining the two, both ends of the covering material are sufficiently fused by improving the shape of the heating surface of the heating member. The purpose of this is to increase the heat-sealing strength of the tube member and to improve the usability of the pipe member covering material heat-sealing tool.

後記実施形態の図面（図１，２，４，５，６及び図３，９に示す第１実施形態、図７及び図３，９に示す第２実施形態、図８及び図３，９に示す第３実施形態）の符号を援用して本発明を説明する。   Drawings of later-described embodiments (first embodiment shown in FIGS. 1, 2, 4, 5, 6 and 3 and 9, second embodiment shown in FIGS. 7 and 3 and 9, and FIGS. The present invention will be described with reference to the third embodiment).

請求項１の発明にかかる管部材用被覆材熱融着具は、第１〜３実施形態に対応し、下記のように構成されている。
複数の加熱体６，９を互いに開閉することができる加熱部材５,８を備えている。この各加熱体６，９を互いに閉じた閉状態Ｑでこの各加熱体６，９間に挿通孔２０を形成している。この閉状態Ｑにある各加熱体６，９においてこの挿通孔２０の中心線方向Ｙの両側でこの挿通孔２０の外周に形成した両側壁２１のうち少なくとも一方の側壁２１の外面２２には加熱手段２４により発熱される加熱面を設けている。この加熱面２２には複数の凸部２６とその各凸部２６間の凹部２７とを有する凹凸部２５を設けている。ちなみに、この各凹部２７は各凸部２６間で相対的に形成されるものを含み、この各凸部２６は各凹部２７間で相対的に形成されるものを含むものであり、この凸部２６と凹部２７とを結ぶ形状については、その凸部２６と凹部２７との間に例えば挿通孔２０の中心線２０ａに対し直交する平坦部分があってもその平坦部分を凸部２６または凹部２７は含むものとする。 The pipe member covering material heat fusion tool according to the invention of claim 1 corresponds to the first to third embodiments and is configured as follows.
Heating members 5 and 8 that can open and close the plurality of heating bodies 6 and 9 are provided. An insertion hole 20 is formed between the heating bodies 6 and 9 in a closed state Q in which the heating bodies 6 and 9 are closed. In each heating body 6, 9 in the closed state Q, the outer surface 22 of at least one side wall 21 of the side walls 21 formed on the outer periphery of the insertion hole 20 on both sides in the center line direction Y of the insertion hole 20 is heated. A heating surface that generates heat by means 24 is provided. The heating surface 22 is provided with a concavo-convex portion 25 having a plurality of convex portions 26 and concave portions 27 between the convex portions 26. By the way, each of the concave portions 27 includes those formed relatively between the respective convex portions 26, and each of the convex portions 26 includes those formed relatively between the respective concave portions 27. As for the shape connecting 26 and the concave portion 27, even if there is a flat portion perpendicular to the center line 20 a of the insertion hole 20 between the convex portion 26 and the concave portion 27, the flat portion is the convex portion 26 or the concave portion 27. Shall be included.

請求項１の発明では、内管２９の外表面２９ａを被覆材２８により被覆した被覆材付き管部材Ｍ１，Ｍ２において分断した両被覆材２８を互いに接合する際、加熱部材５，８の閉状態Ｑで内管２９を加熱体６，９の挿通孔２０に嵌め込んで加熱体６，９の外面２２を加熱面として被覆材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。   According to the first aspect of the present invention, the heating members 5 and 8 are closed when the covering members 28 divided by the covering member pipes M1 and M2 in which the outer surface 29a of the inner tube 29 is covered with the covering member 28 are joined together. In Q, the inner tube 29 is fitted into the insertion holes 20 of the heating bodies 6 and 9, and the outer surface 22 of the heating bodies 6 and 9 is applied as the heating surface to the end surface 28a of the covering material 28 to melt the end surface 28a. it can.

特に、両被覆材２８の端面２８ａに僅かな凹凸や傾斜面があっても、その端面２８ａを加熱面２２の凹凸部２５に押し当てた際に、端面２８ａが凹凸部２５に沿って変形して加熱面２２に接触し易くなり、端面２８ａを十分に熱溶融することができる。   In particular, even if there are slight irregularities or inclined surfaces on the end surfaces 28 a of both coating materials 28, when the end surfaces 28 a are pressed against the irregular portions 25 of the heating surface 22, the end surfaces 28 a are deformed along the irregular portions 25. Therefore, the end face 28a can be sufficiently melted by heat.

請求項１の発明を前提とする請求項２の発明（第１実施形態に対応）にかかる凹凸部２５において、各凸部は山面２６であり、各凹部はこの各山面２６に対し連続する谷面２７である。ちなみに、この山面２６と谷面２７との間に例えば挿通孔２０の中心線２０ａに対し直交する平面部分があってもその平面部分を山面２６または谷面２７は含むものとする。請求項２の発明では、両被覆材２８の端面２８ａを加熱面２２に接触させ易い。   In the uneven portion 25 according to the invention of claim 2 (corresponding to the first embodiment) based on the invention of claim 1, each convex portion is a mountain surface 26, and each concave portion is continuous with each mountain surface 26. It is the trough surface 27 to do. Incidentally, for example, even if there is a plane portion orthogonal to the center line 20a of the insertion hole 20 between the peak surface 26 and the valley surface 27, the peak surface 26 or the valley surface 27 includes that plane portion. In the invention of claim 2, the end surfaces 28 a of both the covering materials 28 are easily brought into contact with the heating surface 22.

請求項２の発明を前提とする請求項３の発明（第１実施形態に対応）にかかる凹凸部２５において、谷面２７は山面２６の周囲で環状に連続し、山面２６はその頂上面２６ａの周囲で頂上面２６ａと谷面２７の谷底面２７ａとを互いに結ぶ斜面２６ｂを有し、谷面２７はその谷底面２７ａと山面２６の頂上面２６ａとを互いに結ぶ斜面２７ｂを有している。請求項３の発明では、端面２８ａが凹凸部２５に沿って変形し易くなって加熱面２２に対しより一層接触し易くなるとともに、加熱面２２により熱溶融された被覆材２８の端面２８ａをその加熱面２２から分離させ易い。   In the concavo-convex portion 25 according to the invention of claim 3 (corresponding to the first embodiment) based on the invention of claim 2, the trough surface 27 continues in an annular shape around the crest surface 26, and the crest surface 26 has its top. Around the surface 26a, there is a slope 26b that connects the top surface 26a and the bottom surface 27a of the valley surface 27 to each other, and the valley surface 27 has a slope 27b that connects the bottom surface 27a and the top surface 26a of the mountain surface 26 to each other. is doing. In the invention of claim 3, the end surface 28 a is easily deformed along the concavo-convex portion 25 and is more easily brought into contact with the heating surface 22, and the end surface 28 a of the coating material 28 thermally melted by the heating surface 22 is Easy to separate from the heating surface 22.

請求項２または請求項３の発明を前提とする請求項４の発明（第１実施形態に対応）にかかる凹凸部２５において、各山面２６の周囲で環状に連続する各谷面２７が互いに連続して網目状につながっている。請求項４の発明では、端面２８ａが凹凸部２５に沿って変形し易くなって加熱面２２に対しより一層接触し易くなる。   In the concavo-convex portion 25 according to the invention of claim 4 (corresponding to the first embodiment) based on the invention of claim 2 or claim 3, the valley surfaces 27 that continue in an annular shape around each mountain surface 26 are mutually connected. It is connected in a continuous mesh. In the invention of claim 4, the end surface 28 a is easily deformed along the concavo-convex portion 25, and is more easily brought into contact with the heating surface 22.

請求項２または請求項３または請求項４の発明を前提とする請求項５の発明（第１〜３実施形態に対応）にかかる凹凸部２５において、各山面２６と各谷面２７とは、前記挿通孔２０の中心線２０ａを中心とする円周方向Ａと半径方向Ｂとのうち少なくともいずれか一方の方向へ交互に連続して並設されている。請求項５の発明では、端面２８ａが加熱面２２に対しより一層接触し易くなる。   In the concavo-convex portion 25 according to the invention of claim 5 (corresponding to the first to third embodiments) based on the invention of claim 2 or claim 3 or claim 4, each peak surface 26 and each valley surface 27 are In addition, they are alternately and continuously arranged in at least one of a circumferential direction A and a radial direction B with the center line 20a of the insertion hole 20 as the center. In the invention of claim 5, the end surface 28 a is more easily brought into contact with the heating surface 22.

請求項１から請求項５のうちいずれかの請求項の発明を前提とする請求項６の発明（第１〜３実施形態に対応）において、前記加熱手段は、加熱面２２を有する側壁２１の内面２３に面するヒータ２４である。請求項６の発明では、加熱体６，９にヒータ２４を設けるだけの簡単な加熱手段により被覆材２８の端面２８ａを容易に加熱することができる。   In the invention of claim 6 (corresponding to the first to third embodiments) based on the invention of any one of claims 1 to 5, the heating means includes a side wall 21 having a heating surface 22. The heater 24 faces the inner surface 23. In the invention of claim 6, the end face 28 a of the covering material 28 can be easily heated by a simple heating means in which the heaters 6 and 9 are simply provided with the heater 24.

請求項１から請求項６のうちいずれかの請求項の発明を前提とする請求項７の発明（第１〜３実施形態に対応）において、前記加熱部材５，８は取付部１ａで相対回動可能に支持されて互いに開閉される一対の加熱体６，９を備え、閉状態Ｑにある両加熱体６，９において取付部１ａにおける回動中心線４ａを中心とする回動方向Ｒで相対向する割縁部１１には前記挿通孔２０を形成するための割孔１２を形成している。請求項７の発明では、加熱部材５，８をコンパクトにまとめることができる。   In the invention of claim 7 (corresponding to the first to third embodiments) based on the invention of any one of claims 1 to 6, the heating members 5 and 8 are rotated relative to each other by the attachment portion 1 a. A pair of heating bodies 6 and 9 that are movably supported and opened and closed with respect to each other are provided, and in both heating bodies 6 and 9 in the closed state Q, the rotation direction R about the rotation center line 4a in the mounting portion 1a. A split hole 12 for forming the insertion hole 20 is formed in the opposing split edge portions 11. In invention of Claim 7, the heating members 5 and 8 can be put together compactly.

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。
請求項１から請求項７のうちいずれかの請求項の発明を前提とする第８の発明（第１〜３実施形態に対応）において、前記加熱部材５，８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６，９を互いに開閉させる開閉操作手段１３を設けた。第８の発明では、ホルダ１を把持して開閉操作手段１３を操作すると、両加熱体６，９を互いに開閉させることができる。 Next, technical ideas other than the claims will be described with reference to the reference numerals in the drawings of the embodiments.
In an eighth invention (corresponding to the first to third embodiments) based on the invention of any one of claims 1 to 7, the heating members 5 and 8 are mounting portions provided in the holder 1 The holder 1 is provided with opening / closing operation means 13 that opens and closes both the heating elements 6 and 9. In the eighth invention, when the holder 1 is gripped and the opening / closing operation means 13 is operated, both the heating elements 6 and 9 can be opened and closed.

第８の発明を前提とする第９の発明（第１〜３実施形態に対応）において、前記ホルダ１は、前記加熱部材５，８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、前記両加熱体は、その頭部１ａの取付部で、回動不能に支持された一方の加熱体６と、この一方の加熱体６に対し開閉するように回動可能に支持された他方の加熱体９とからなり、この一方の加熱体６は前記把持部１ｂの延設向き側に配設され、この他方の加熱体９はその延設向きに対する反対側に配設されている。第９の発明では、加熱部材５，８をコンパクトにまとめることができるとともに、加熱部材５，８の閉状態Ｑで内管２９や両被覆材２８を両加熱体６，９の割孔１２に嵌め込み易い。   In a ninth invention based on the eighth invention (corresponding to the first to third embodiments), the holder 1 includes a head 1a having a mounting portion that supports the heating members 5 and 8, and a head thereof. 1a, and the two heating elements are attached to the head 1a so as to be non-rotatably supported by one heating element 6 and the one heating element 6. The other heating body 9 is rotatably supported so as to open and close. The one heating body 6 is disposed on the extending direction side of the grip portion 1b, and the other heating body 9 It is arranged on the opposite side to the installation direction. In the ninth invention, the heating members 5 and 8 can be gathered in a compact manner, and the inner tube 29 and the both covering materials 28 are made into the split holes 12 of both the heating bodies 6 and 9 in the closed state Q of the heating members 5 and 8. Easy to fit.

請求項１から請求項７のうちいずれかの請求項の発明または第８の発明または第９の発明を前提とする第１０の発明（第１〜３実施形態に対応）において、前記加熱部材５，８で加熱体６，９の加熱面２２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等の樹脂を表面に有するシート２２ａ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等の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。第１０の発明では、図３（ｃ）に示す両被覆材２８の端面２８ａに加熱体６，９の加熱面２２を当てがった際にその被加熱面から加熱面２２を分離させ易い。   In the invention of any one of claims 1 to 7, or the tenth invention (corresponding to the first to third embodiments) based on the eighth or ninth invention, the heating member 5 , 8 on the front side of the heating surface 22 of the heating bodies 6 and 9, for example, a sheet 22a having a resin such as a fluororesin having a good separability with respect to the surface to be heated is attached or the surface to the surface to be heated is attached. The surface is coated with a resin such as a fluororesin having good separability, and a surface having a resin having good separability with respect to the heated surface is provided. In the tenth invention, when the heating surfaces 22 of the heating bodies 6 and 9 are applied to the end surfaces 28a of both the covering materials 28 shown in FIG. 3C, the heating surface 22 is easily separated from the heated surface.

本発明は、両被覆材２８間の継ぎ目３０に隙間が生じにくい管部材Ｍ１，Ｍ２を製造するために被覆材２８の端面２８ａを容易に溶融させる管部材用被覆材熱融着具を提供することができるばかりではなく、両被覆材２８の端面２８ａに対する熱溶融を十分に行って両端面２８ａ間の熱融着強度を高め、管部材用被覆材熱融着具の使い勝手を良くすることができる。   The present invention provides a tube member covering material heat-sealing tool that easily melts the end surface 28a of the covering material 28 in order to manufacture the tube members M1 and M2 in which a gap 30 is unlikely to be generated in the joint 30 between the both covering materials 28. In addition to being able to do this, it is possible to sufficiently heat-melt the end faces 28a of the two covering materials 28 to increase the heat-sealing strength between the both end faces 28a, and to improve the usability of the covering material heat-sealing tool for pipe members. it can.

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具について図１，２，４，５，６及び図３，９を参照して説明する。
図１，２に示すように、ホルダ１の頭部１ａ（取付部）内において、固定支持腕２が取着されて位置決めされているとともに、この固定支持腕２よりも上側で可動支持腕３が支軸４により上下方向Ｚへ回動可能に支持されている。図１，２に示す下側の加熱部材５においては、固定加熱体６が固定連結腕７に支持され、その固定連結腕７が前記固定支持腕２に対し着脱可能に連結されている。図１，２に示す上側の加熱部材８においては、可動加熱体９が可動連結腕１０に支持され、その可動連結腕１０が前記可動支持腕３に対し着脱可能に連結されている。 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, 2, 4, 5, 6 and FIGS.
As shown in FIGS. 1 and 2, the fixed support arm 2 is attached and positioned in the head 1 a (attachment portion) of the holder 1, and the movable support arm 3 is located above the fixed support arm 2. Is supported by the support shaft 4 so as to be rotatable in the vertical direction Z. In the lower heating member 5 shown in FIGS. 1 and 2, a fixed heating body 6 is supported by a fixed connection arm 7, and the fixed connection arm 7 is detachably connected to the fixed support arm 2. In the upper heating member 8 shown in FIGS. 1 and 2, a movable heating body 9 is supported by a movable connecting arm 10, and the movable connecting arm 10 is detachably connected to the movable supporting arm 3.

ホルダ１の頭部１ａ（取付部）に対する前後方向Ｘの外側で、下側の加熱部材５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）側に配設された前記固定加熱体６を備え、上側の加熱部材８はその延設向きに対する反対向き（上向き）側に配設された前記可動加熱体９を備えている。この固定加熱体６と可動加熱体９とは、それぞれ、半円の外周縁を有する板状をなす。支軸４の回動中心線４ａを中心とする回動方向Ｒで相対向する固定加熱体６及び可動加熱体９の割縁部１１には半円状の割孔１２が形成されている。   Outside the front-rear direction X with respect to the head 1a (mounting portion) of the holder 1, the lower heating member 5 is disposed on the extending direction (downward) side of the gripping portion 1b that is bent from the head 1a and extends downward. The fixed heating body 6 is provided, and the upper heating member 8 is provided with the movable heating body 9 disposed on the opposite side (upward direction) to the extending direction. Each of the fixed heating body 6 and the movable heating body 9 has a plate shape having a semicircular outer peripheral edge. A semicircular split hole 12 is formed in the split edge portion 11 of the fixed heater 6 and the movable heater 9 facing each other in the rotation direction R around the rotation center line 4 a of the support shaft 4.

前記ホルダ１内に組み付けられた開閉操作手段１３（リンク機構）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１４が支軸１５を中心に回動可能に支持され、前記可動支持腕３で左右方向Ｙの両側に支持された連動軸１６に連動リンク１７が回動可能に支持されているとともに、この操作レバー１４と一体的に回動する連動レバー１８とこの連動リンク１７とが連動軸１９により互いに回動可能に連結されている。従って、この操作レバー１４をばね１５ａの弾性力に抗して把持部１ｂ側へ押すと、連動レバー１８と連動リンク１７とを介して可動支持腕３が支軸４の回動中心線４ａを中心に上方へ回動し、可動加熱体９が固定加熱体６に対し上方へ回動して上下両加熱部材８，５が互いに開く開状態Ｐとなる。また、この操作レバー１４を離すと、ばね１５ａの弾性力により操作レバー１４が復帰して、連動レバー１８と連動リンク１７とを介して可動支持腕３が支軸４の回動中心線４ａを中心に下方へ回動し、可動加熱体９が固定加熱体６に対し下方へ回動して上下両加熱部材８，５が互いに閉じる閉状態Ｑとなる。   In the opening / closing operation means 13 (link mechanism) assembled in the holder 1, an operation lever 14 adjacent to the gripping portion 1b on the outside thereof is supported so as to be rotatable around a support shaft 15, and the movable support arm. 3, the interlocking link 17 is rotatably supported by the interlocking shaft 16 supported on both sides in the left-right direction Y, and the interlocking lever 18 that rotates integrally with the operation lever 14 and the interlocking link 17 include The interlocking shafts 19 are connected to each other so as to be rotatable. Therefore, when the operating lever 14 is pushed toward the gripping portion 1b against the elastic force of the spring 15a, the movable support arm 3 moves the rotation center line 4a of the support shaft 4 via the interlocking lever 18 and the interlocking link 17. The movable heating body 9 is rotated upward with respect to the center, and the movable heating body 9 is rotated upward with respect to the fixed heating body 6 so that the upper and lower heating members 8 and 5 are opened to each other. When the operating lever 14 is released, the operating lever 14 is restored by the elastic force of the spring 15 a, and the movable support arm 3 moves along the rotation center line 4 a of the support shaft 4 via the interlocking lever 18 and the interlocking link 17. The movable heater 9 is rotated downward about the center, the movable heater 9 is rotated downward with respect to the fixed heater 6, and the upper and lower heating members 8, 5 are closed to each other.

この上下両加熱部材８，５の閉状態Ｑでは、固定加熱体６及び可動加熱体９が割縁部１１で互いに重合されて円板状をなし、固定加熱体６と可動加熱体９との間の中央部で割縁部１１の割孔１２により環状（円形状）の挿通孔２０が形成される。この固定加熱体６及び可動加熱体９において挿通孔２０の中心線方向（左右方向Ｙ）の両側で挿通孔２０の外周全体には図６に示すように半円形状の側壁２１が加熱し易い金属等により形成されている。この固定加熱体６及び可動加熱体９の両側壁２１の外面２２には、図１（ｃ）に示すように、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２２ａが貼着されている。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その両側壁２１の外面２２にコーティングしてもよい。   In the closed state Q of the upper and lower heating members 8, 5, the fixed heating body 6 and the movable heating body 9 are superposed on each other at the split edge portion 11 to form a disk shape, and the fixed heating body 6 and the movable heating body 9 An annular (circular) insertion hole 20 is formed by the split hole 12 of the split edge portion 11 at the central portion therebetween. In the fixed heating body 6 and the movable heating body 9, the semicircular side wall 21 is easily heated on the entire outer periphery of the insertion hole 20 on both sides in the center line direction (left-right direction Y) of the insertion hole 20 as shown in FIG. It is made of metal or the like. As shown in FIG. 1C, a sheet coated with a resin having good separability with respect to the surface to be heated, such as a fluororesin or a silicone resin, on the outer surfaces 22 of both side walls 21 of the fixed heating body 6 and the movable heating body 9 22a is stuck. Further, the outer surface 22 of both side walls 21 may be coated with a resin having good separability with respect to the heated surface, such as a fluororesin or a silicone resin.

前記固定加熱体６内及び可動加熱体９内には、図６に示すように、両側壁２１の内面２３に面して接触する加熱手段としてヒータ２４が嵌め込まれている。このヒータ２４としては、例えば、熱線を巻いた熱板を両電気絶縁板間で挟持したものなどを利用している。このヒータ２４により両側壁２１の外面２２が発熱して加熱面として機能する。   As shown in FIG. 6, a heater 24 is fitted in the fixed heating body 6 and the movable heating body 9 as heating means that faces and contacts the inner surfaces 23 of both side walls 21. As the heater 24, for example, a hot plate wound with a hot wire is sandwiched between both electrical insulating plates. The outer surface 22 of the side walls 21 is heated by the heater 24 and functions as a heating surface.

前記上下両加熱部材８，５の開状態Ｐでは、固定加熱体６及び可動加熱体９の割縁部１１が互いに離間するとともに、閉状態Ｑで前記挿通孔２０を形成する割孔１２も互いに離間し、この割縁部１１間に挿脱許容空間Ｓを形成することができる。   In the open state P of the upper and lower heating members 8, 5, the split edge portions 11 of the fixed heater 6 and the movable heater 9 are separated from each other, and the split holes 12 that form the insertion holes 20 in the closed state Q are also mutually connected. It is possible to form an insertion / removal-permitted space S between the split edge portions 11 at a distance.

前記固定加熱体６及び可動加熱体９において両側壁２１の外面２２の全体には、図４，６に示すように、凹凸部２５を有している。この凹凸部２５においては、凸部としての複数の山面２６と凹部としての複数の谷面２７とが前記挿通孔２０の中心線２０ａを中心とする円周方向Ａと半径方向Ｂとへ交互に連続して並設され、谷面２７は一部のものを除き山面２６の周囲で円環状に連続している。図５に示すように、この山面２６は、その頂上面２６ａを通る中心線を中心とする球面の一部を有し、その頂上面２６ａの周囲で頂上面２６ａと谷面２７の谷底面２７ａとを互いに結ぶ円環状斜面２６ｂを有している。また、この谷面２７は、その谷底面２７ａを通る中心線を中心とする円弧面の一部を有し、その谷底面２７ａと山面２６の頂上面２６ａとを互いに結ぶ円弧状斜面２７ｂを有している。この山面２６の円環状斜面２６ｂと谷面２７の円弧状斜面２７ｂとは互いに滑らかに連続し、互いに隣接する両谷面２７の谷底面２７ａ間も互いに滑らかに連続している。各山面２６の頂上面２６ａ間を結ぶ平面と各谷面２７の谷底面２７ａ間を結ぶ平面との間の距離Ｈ（山面２６の高さ、谷面２７の深さ）は、互いに等しくなっている。   In the fixed heating body 6 and the movable heating body 9, the entire outer surface 22 of the side walls 21 has an uneven portion 25 as shown in FIGS. In the concavo-convex portion 25, a plurality of crest surfaces 26 as convex portions and a plurality of trough surfaces 27 as concave portions alternate in a circumferential direction A and a radial direction B around the center line 20 a of the insertion hole 20. The valley surface 27 is continuous in an annular shape around the mountain surface 26 except for a part thereof. As shown in FIG. 5, this crest surface 26 has a part of a spherical surface centering on a center line passing through the top surface 26a, and the bottom surface of the top surface 26a and the valley surface 27 around the top surface 26a. 27a has an annular slope 26b that connects 27a to each other. Further, the valley surface 27 has a part of an arc surface centering on a center line passing through the valley bottom surface 27a, and an arcuate slope 27b connecting the valley bottom surface 27a and the top surface 26a of the mountain surface 26 to each other. Have. The annular slope 26b of the mountain surface 26 and the arcuate slope 27b of the valley surface 27 are smoothly continuous with each other, and the valley bottom surfaces 27a of both adjacent valley surfaces 27 are also smoothly continuous with each other. The distances H (the height of the mountain surface 26 and the depth of the valley surface 27) between the planes connecting the top surfaces 26a of the mountain surfaces 26 and the planes connecting the valley bottom surfaces 27a of the valley surfaces 27 are equal to each other. It has become.

次に、第１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について図３，９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被覆材としての保温材２８により、樹脂や銅等からなる内管２９の外表面２９ａを被覆した管部材としての流体管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２（ｂ）に示すように前記熱融着具の上下両加熱部材８，５を開状態Ｐにして固定加熱体６及び可動加熱体９の割縁部１１間で挿脱許容空間Ｓに内管２９を挿入した後、この上下両加熱部材８，５を閉状態Ｑにすると、内管２９が挿通孔２０に嵌め込まれる。その後、図３（ｃ）及び図６に示すように固定加熱体６及び可動加熱体９の両側壁２１の加熱面２２に両保温材２８の端面２８ａを押し当てると、端面２８ａが加熱面２２の凹凸部２５に沿って変形して加熱面２２に接触し易くなり、それらの端面２８ａが同時に加熱されて熱溶融される。次に、上下両加熱部材８，５を開状態Ｐにして固定加熱体６及び可動加熱体９の割縁部１１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上下両加熱部材８，５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９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, a fluid pipe with a heat insulating material joined using the heat insulating material heat fusion tool for a fluid pipe according to the first embodiment and a joining procedure thereof will be described with reference to FIGS.
As shown in FIG. 3 (a), a tube member in which an outer surface 29a of an inner tube 29 made of resin, copper or the like is covered with a heat insulating material 28 as a cylindrical covering material made of a heat insulating material such as foamed polyethylene. The fluid pipes M1 and M2 are divided on both sides of the inner pipe 29 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, as shown in FIG. 2 (b), the upper and lower heating members 8 and 5 of the heat-sealing tool are opened P, and insertion / removal is allowed between the split edges 11 of the fixed heating body 6 and the movable heating body 9. After the inner tube 29 is inserted into the space S, when the upper and lower heating members 8 and 5 are closed, the inner tube 29 is fitted into the insertion hole 20. Thereafter, as shown in FIGS. 3C and 6, when the end surfaces 28 a of both the heat insulating materials 28 are pressed against the heating surfaces 22 of the both side walls 21 of the fixed heating body 6 and the movable heating body 9, the end surfaces 28 a become the heating surface 22. It deform | transforms along the uneven | corrugated | grooved part 25, and it becomes easy to contact the heating surface 22, and those end surfaces 28a are heated simultaneously, and are heat-melted. Next, when the upper and lower heating members 8 and 5 are opened P, and the inner tube 29 is detached from the insertion / removal allowable space S between the fixed heating body 6 and the split edge portion 11 of the movable heating body 9, FIG. ), The end surfaces 28a of the two heat insulating materials 28 in the molten state oppose each other in the longitudinal direction. When the end surfaces 28a of the two heat insulating materials 28 in the molten state are pressed against each other immediately after the upper and lower heating members 8 and 5 of the heat fusion tool are removed from the end surfaces 28a of the two heat insulating materials 28 in this way, FIG. As shown in FIG. 2, both end faces 28 a 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７及び図３，９を参照して説明する。
前記固定加熱体６及び可動加熱体９の外面２２（加熱面）に設けられた凹凸部２５においては、半径方向Ｂへ連続して延びる複数の山面２６と複数の谷面２７とが周方向Ａへ交互に連続して並設されている。この山面２６はその頂上面２６ａと谷面２７の谷底面２７ａとを互いに結ぶ円弧状斜面２６ｂを有している。この谷面２７はその谷底面２７ａと山面２６の頂上面２６ａとを互いに結ぶ円弧状斜面２７ｂを有している。この山面２６の円弧状斜面２６ｂと谷面２７の円弧状斜面２７ｂとは互いに滑らかに連続している。各山面２６の頂上面２６ａ間を結ぶ平面と各谷面２７の谷底面２７ａ間を結ぶ平面との間の距離Ｈ（山面２６の高さ、谷面２７の深さ）は、互いに等しくなっている。 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. 7, 3, and 9, focusing on differences from the first embodiment.
In the concavo-convex portion 25 provided on the outer surface 22 (heating surface) of the fixed heating body 6 and the movable heating body 9, a plurality of crest surfaces 26 and a plurality of trough surfaces 27 extending in the radial direction B are circumferential. It is arranged in parallel to A alternately. The mountain surface 26 has an arcuate slope 26 b that connects the top surface 26 a and the valley bottom surface 27 a of the valley surface 27 to each other. The valley surface 27 has an arcuate slope 27b that connects the valley bottom surface 27a and the top surface 26a of the mountain surface 26 to each other. The arcuate slope 26b of the mountain surface 26 and the arcuate slope 27b of the valley surface 27 are smoothly continuous with each other. The distances H (the height of the mountain surface 26 and the depth of the valley surface 27) between the planes connecting the top surfaces 26a of the mountain surfaces 26 and the planes connecting the valley bottom surfaces 27a of the valley surfaces 27 are equal to each other. It has become.

次に、本発明の第３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８及び図３，９を参照して説明する。
前記固定加熱体６及び可動加熱体９の外面２２（加熱面）に設けられた凹凸部２５においては、周方向Ａへ連続して円環状に延びる山面２６と谷面２７とが半径方向Ｂへ交互に連続して並設されている。この山面２６はその頂上面２６ａと谷面２７の谷底面２７ａとを互いに結ぶ円弧状斜面２６ｂを有している。この谷面２７はその谷底面２７ａと山面２６の頂上面２６ａとを互いに結ぶ円弧状斜面２７ｂを有している。この山面２６の円弧状斜面２６ｂと谷面２７の円弧状斜面２７ｂとは互いに滑らかに連続している。各山面２６の頂上面２６ａ間を結ぶ平面と各谷面２７の谷底面２７ａ間を結ぶ平面との間の距離Ｈ（山面２６の高さ、谷面２７の深さ）は、互いに等しくなっている。 Next, a heat insulating material heat fusion tool for fluid pipes according to a third embodiment of the present invention will be described with reference to FIGS. 8, 3 and 9 focusing on the differences from the first embodiment.
In the concavo-convex portion 25 provided on the outer surface 22 (heating surface) of the fixed heating body 6 and the movable heating body 9, a crest surface 26 and a trough surface 27 extending in an annular shape continuously in the circumferential direction A have a radial direction B. Are alternately arranged in parallel. The mountain surface 26 has an arcuate slope 26 b that connects the top surface 26 a and the valley bottom surface 27 a of the valley surface 27 to each other. The valley surface 27 has an arcuate slope 27b that connects the valley bottom surface 27a and the top surface 26a of the mountain surface 26 to each other. The arcuate slope 26b of the mountain surface 26 and the arcuate slope 27b of the valley surface 27 are smoothly continuous with each other. The distances H (the height of the mountain surface 26 and the depth of the valley surface 27) between the planes connecting the top surfaces 26a of the mountain surfaces 26 and the planes connecting the valley bottom surfaces 27a of the valley surfaces 27 are equal to each other. It has become.

本実施形態は下記の効果を有する。
＊ 両保温材２８の端面２８ａに僅かな凹凸や傾斜面があっても、加熱面２２の凹凸部２５に押し当てられた端面２８ａが凹凸部２５に沿って変形して加熱面２２に接触し易くなり、端面２８ａを十分に熱溶融して両端面２８ａ間の熱融着強度を高め、流体管用保温材熱融着具の使い勝手を良くすることができる。 This embodiment has the following effects.
* Even if there are slight irregularities or inclined surfaces on the end surfaces 28a of both the heat insulating materials 28, the end surfaces 28a pressed against the irregular portions 25 of the heating surface 22 are deformed along the irregular portions 25 and come into contact with the heating surface 22. It becomes easy, the end surface 28a can be sufficiently heat-melted to increase the heat-sealing strength between the both end surfaces 28a, and the usability of the heat insulating material heat-sealing tool for fluid pipes can be improved.

＊ その変形により、加熱面２２に対する端面２８ａの接触面積を増やし、端面２８ａを十分に熱溶融して両端面２８ａ間の熱融着強度を高め、流体管用保温材熱融着具の使い勝手を良くすることができる。   * Due to the deformation, the contact area of the end face 28a with the heating surface 22 is increased, the end face 28a is sufficiently melted by heat to increase the heat fusion strength between the both end faces 28a, and the usability of the heat insulation material for fluid pipes is improved. can do.

＊ 加熱面２２の凹凸部２５において、山面２６の頂上面２６ａと、山面２６の周囲で環状に連続する谷面２７の谷底面２７ａとの間で、その頂上面２６ａと谷底面２７ａとを互いに結ぶ斜面２６ｂ，２７ｂを有しているので、加熱面２２の凹凸部２５に押し当てられた端面２８ａが凹凸部２５に沿って変形すると、その凹凸部２５から端面２８ａを離す際に、その変形により端面２８ａに生じた弾性力により端面２８ａから加熱面２２を分離させる向きの力が働き、端面２８ａから加熱面２２を分離させ易くなり、流体管用保温材熱融着具の使い勝手を良くすることができる。   * In the concavo-convex portion 25 of the heating surface 22, between the top surface 26 a of the mountain surface 26 and the valley bottom surface 27 a of the valley surface 27 that continues annularly around the mountain surface 26, the top surface 26 a and the valley bottom surface 27 a When the end surface 28a pressed against the concavo-convex portion 25 of the heating surface 22 is deformed along the concavo-convex portion 25, when the end surface 28a is separated from the concavo-convex portion 25, the slope 26b, 27b is connected. Due to the elastic force generated in the end surface 28a due to the deformation, a force in a direction to separate the heating surface 22 from the end surface 28a works, and it becomes easy to separate the heating surface 22 from the end surface 28a, and the usability of the heat insulating material heat fusion tool for fluid pipes is improved. can do.

＊ 上記熱融着具を利用すれば、両保温材２８の端面２８ａが互いに熱融着されて接合されるので、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り、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が熱融着されるので、隙間がより一層生じにくくなる。   * If the above heat-sealing tool is used, the end faces 28a of the two heat insulating materials 28 are heat-sealed and joined to each other, so that the end faces 28a are difficult to separate from each other, and the seam 30 between the two heat insulating materials 28 is formed. It becomes difficult for a gap to occur, and it is difficult for condensation to occur on the outer surface 29a of the inner tube 29, thereby preventing water leakage. In the joint 30, the end surfaces 28 a of both 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.

＊ 固定加熱体６及び可動加熱体９の閉状態Ｑで内管２９を挿通孔２０に嵌め込むので、固定加熱体６及び可動加熱体９を内管２９に対し安定して保持した状態で、固定加熱体６及び可動加熱体９を両保温材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。   * Since the inner tube 29 is fitted into the insertion hole 20 in the closed state Q of the fixed heating body 6 and the movable heating body 9, the fixed heating body 6 and the movable heating body 9 are stably held with respect to the inner tube 29. The fixed heating body 6 and the movable heating body 9 can be applied to the end faces 28a of both the heat insulating materials 28 to melt the end faces 28a, and the work can be easily performed.

＊ ホルダ１を把持して開閉操作手段１３を操作すると、固定加熱体６及び可動加熱体９に直接的に触れることなく固定加熱体６及び可動加熱体９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 13 is operated, the fixed heating body 6 and the movable heating body 9 can be opened and closed with respect to each other without directly touching the fixed heating body 6 and the movable heating body 9. It becomes easy to do.

前記各実施形態以外にも例えば下記のように構成してもよい。
・ 第１実施形態で加熱面２２の凹凸部２５においては各山面２６の周囲で環状に連続する各谷面２７が互いに連続して網目状につながっているが、各谷面の周囲で環状に連続する各山面が互いに連続して網目状につながるようにしてもよい。 For example, the following embodiments may be configured as follows.
In the first embodiment, in the uneven portion 25 of the heating surface 22, the valley surfaces 27 that are continuous in an annular shape around each peak surface 26 are connected to each other in a mesh shape, but are annular around each valley surface. It is also possible to connect the crest surfaces that are continuous to each other in a mesh pattern.

・ 上側加熱部材８の加熱体９を固定するとともに下側加熱部材５の加熱体６を回動させたり、それらの加熱体６，９を共に回動させたりしてもよい。
・ 加熱部材５，８における加熱手段としては、熱線によるヒータ２４に代えて、加熱体６，９の加熱面２２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２２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２４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。 The heating body 9 of the upper heating member 8 may be fixed and the heating body 6 of the lower heating member 5 may be rotated, or the heating bodies 6 and 9 may be rotated together.
As the heating means in the heating members 5 and 8, any heating means can be used as long as it can heat the heating surface 22 of the heating bodies 6 and 9 instead of the heater 24 by the heat ray. Hot air by gas can be ejected from many small holes, or the power source of the heater 24 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５，８に対する開閉操作手段１３としては、前述したリンク機構に代えて、加熱体６，９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, 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 13 for the heating members 5, 8, a finger pad that can open and close the heating bodies 6, 9 is provided instead of the link mechanism described above.

・ 前記各実施形態では加熱部材５，８の加熱体６，９は１８０度の円周角度を有しているが、例えば加熱体６，９を９０度の円周角度で形成してもよい。その場合、閉状態Ｑでこの加熱体６，９間に生じる挿通孔２０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がこの加熱体６，９により挟まれる。この加熱体６，９の加熱面２２を保温材２８の端面２８ａに当てがった状態で加熱部材５，８を回動させてその端面２８ａを溶融させる。   In each of the above embodiments, the heating bodies 6 and 9 of the heating members 5 and 8 have a circumferential angle of 180 degrees, but the heating bodies 6 and 9 may be formed at a circumferential angle of 90 degrees, for example. . In that case, the insertion hole 20 formed between the heating bodies 6 and 9 in the closed state Q becomes a space opened to the outside, and the inner tube 29 inserted into the space is sandwiched between the heating bodies 6 and 9. The heating members 5 and 8 are rotated in a state where the heating surface 22 of the heating bodies 6 and 9 is applied to the end surface 28a of the heat insulating material 28 to melt the end surface 28a.

・ 図３（ａ）に示すように円筒状の保温材２８により内管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が、この内管２９は長手方向で一連につながっていてもよく保温材２８のみが長手方向の両側で分断されていてもよい。   As shown in FIG. 3A, the fluid pipes M1 and M2 in which the outer surface 29a of the inner pipe 29 is covered with a cylindrical heat insulating material 28 are divided on both sides in the longitudinal direction of the inner pipe 29. The tube 29 may be connected in series in the longitudinal direction, or only the heat insulating material 28 may be divided on both sides in the longitudinal direction.

（ａ）は第１実施形態にかかる流体管用保温材熱融着具において上下両加熱部材の閉状態を示す右側面図であり、（ｂ）は同じく閉状態を示す左側面図であり、（ｃ）は（ａ）を正面側から見て上下両加熱部材のみを示す部分正面図である。(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 first embodiment, (b) is a left side view showing the closed state, c) is a partial front view showing only the upper and lower heating members when (a) is viewed from the front side. （ａ）は図１（ａ）の一部切欠き右側面図であり、（ｂ）は上記流体管用保温材熱融着具において上下両加熱部材の開状態を示す一部切欠き右側面図である。(A) is a partially cutaway right side view of FIG. 1 (a), and (b) is a partially cutaway right side view showing an open state of both the upper and lower heating members in the heat insulating material heat fusion tool for fluid pipes. It is. （ａ）（ｂ）（ｄ）は分断された保温材付き流体管を本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-sectional view showing the process of joining the separated fluid pipes with a heat insulating material to each other using the heat insulating material heat fusion tool for fluid pipes of the present embodiment as viewed from the front side. (C) is also a partial plan view. （ａ）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で図３（ｃ）の状態を右側面側から見て示す部分縦断面図であり、（ｂ）は同じく左側面側から見て示す部分縦断面図である。(A) shows the state of FIG.3 (c) seen from the right side surface in the process which joins the divided | segmented fluid pipe | tube with a heat insulating material mutually using the heat insulating material heat fusion material for fluid pipes of 1st Embodiment. It is a partial longitudinal cross-sectional view, (b) is a partial longitudinal cross-sectional view similarly seen from the left side. （ａ）は図４（ａ）（ｂ）の凹凸部を周方向へ切断した部分拡大断面図であり、（ｂ）は同じく半径方向へ切断した部分拡大断面図である。なお、図１（ａ）（ｂ）や図２（ａ）（ｂ）や図４（ａ）（ｂ）において、実際には加熱面にこの凹凸部の断面形状が表れないが、凸部と凹部とを区別するために凸部を円形線で表示した。(A) is the partial expanded sectional view which cut | disconnected the uneven | corrugated | grooved part of Fig.4 (a) (b) to the circumferential direction, (b) is the partial expanded sectional view similarly cut | disconnected to the radial direction. 1 (a) (b), FIG. 2 (a) (b) and FIG. 4 (a) (b), the sectional shape of the uneven portion does not actually appear on the heating surface. In order to distinguish from the concave portion, the convex portion is indicated by a circular line. 上記図３（ｃ）の状態を正面側から見て示す部分縦断面図である。It is a fragmentary longitudinal cross-section which shows the state of the said FIG.3 (c) seeing from the front side. （ａ）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で図３（ｃ）の状態を右側面側から見て示す部分縦断面図であり、（ｂ）は同じく左側面側から見て示す部分縦断面図であり、（ｃ）は（ａ）の凹凸部を周方向へ切断した部分拡大断面図である。なお、図７（ａ）（ｂ）において、実際には加熱面にこの凹凸部の断面形状が表れないが、凸部と凹部とを区別するために凸部を帯線で表示した。(A) shows the state of FIG.3 (c) seen from the right side surface in the process which joins the divided | segmented fluid pipe | tube with a heat insulating material mutually using the heat insulating material heat insulation material for fluid pipes of 2nd Embodiment. It is a partial longitudinal cross-sectional view, (b) is a partial longitudinal cross-sectional view similarly viewed from the left side, (c) is a partially enlarged cross-sectional view of the concavo-convex portion of (a) cut in the circumferential direction. In FIGS. 7A and 7B, although the cross-sectional shape of the concavo-convex portion does not actually appear on the heating surface, the convex portion is indicated by a band to distinguish the convex portion from the concave portion. （ａ）は分断された保温材付き流体管を第３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で図３（ｃ）の状態を右側面側から見て示す部分縦断面図であり、（ｂ）は同じく左側面側から見て示す部分縦断面図であり、（ｃ）は（ａ）の凹凸部を半径方向へ切断した部分拡大断面図である。なお、図８（ａ）（ｂ）において、実際には加熱面にこの凹凸部の断面形状が表れないが、凸部と凹部とを区別するために凸部を帯線で表示した。(A) shows the state of FIG.3 (c) seen from the right side surface in the process which joins the divided | segmented fluid pipe | tube with a heat insulating material mutually using the heat insulating material heat fusion tool for fluid pipes of 3rd Embodiment. It is a partial longitudinal cross-sectional view, (b) is a partial vertical cross-sectional view similarly viewed from the left side, and (c) is a partially enlarged cross-sectional view of the concavo-convex portion of (a) cut in the radial direction. In FIGS. 8A and 8B, although the cross-sectional shape of the concavo-convex portion does not actually appear on the heating surface, the convex portion is indicated by a band to distinguish the convex portion from the concave portion. 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.

符号の説明Explanation of symbols

１…ホルダ、１ａ…ホルダの取付部としての頭部、４ａ…上側加熱部材の回動中心線、５…下側加熱部材、６…固定加熱体、８…上側加熱部材、９…可動加熱体、１１…割縁部、１２…割孔、２０…挿通孔、２０ａ…挿通孔の中心線、２１…加熱体の側壁、２２…加熱面である側壁の外面、２３…側壁の内面、２４…加熱手段としてのヒータ、２５…凹凸部、２６…山面、２６ａ…山面の頂上面、２６ｂ…山面の斜面、２７…谷面、２７ａ…谷面の谷底面、２７ｂ…谷面の斜面、Ａ…円周方向、Ｂ…半径方向、Ｐ…両加熱体の開状態、Ｑ…両加熱体の閉状態、Ｙ…挿通孔の中心線方向、Ｒ…上側加熱部材の回動方向。   DESCRIPTION OF SYMBOLS 1 ... Holder, 1a ... Head as attachment part of holder, 4a ... Turning center line of upper side heating member, 5 ... Lower side heating member, 6 ... Fixed heating body, 8 ... Upper side heating member, 9 ... Movable heating body , 11 ... Split edge portion, 12 ... Split hole, 20 ... Insertion hole, 20a ... Center line of the insert hole, 21 ... Side wall of heating body, 22 ... Outer surface of side wall as heating surface, 23 ... Inner surface of side wall, 24 ... Heater as heating means, 25: uneven portion, 26: mountain surface, 26a ... top surface of mountain surface, 26b ... slope of mountain surface, 27 ... valley surface, 27a ... bottom surface of valley surface, 27b ... slope of valley surface A: Circumferential direction, B: Radial direction, P: Open state of both heating bodies, Q: Closed state of both heating bodies, Y: Centerline direction of insertion hole, R: Direction of rotation of upper heating member.

Claims (7)

複数の加熱体を互いに開閉することができる加熱部材を備え、この各加熱体を互いに閉じた閉状態でこの各加熱体間に挿通孔を形成し、この閉状態にある各加熱体においてこの挿通孔の中心線方向の両側でこの挿通孔の外周に形成した両側壁のうち少なくとも一方の側壁の外面には加熱手段により発熱される加熱面を設け、この加熱面には複数の凸部とその各凸部間の凹部とを有する凹凸部を設けたことを特徴とする管部材用被覆材熱融着具。 A heating member capable of opening and closing a plurality of heating bodies is provided, and an insertion hole is formed between the heating bodies in the closed state where the heating bodies are closed to each other. A heating surface that generates heat by the heating means is provided on the outer surface of at least one of the both side walls formed on the outer periphery of the insertion hole on both sides in the center line direction of the hole. A covering material heat-sealing tool for a pipe member, characterized in that a concave-convex portion having a concave portion between the convex portions is provided. 前記凹凸部において、各凸部は山面であり、各凹部はこの各山面に対し連続する谷面であることを特徴とする請求項１に記載の管部材用被覆材熱融着具。 In the said uneven | corrugated | grooved part, each convex part is a crest surface, and each recessed part is a trough surface which continues with respect to this each crest surface, The covering material heat sealing | fusion tool for pipe members of Claim 1 characterized by the above-mentioned. 前記凹凸部において、谷面は山面の周囲で環状に連続し、山面はその頂上面の周囲で頂上面と谷面の谷底面とを互いに結ぶ斜面を有し、谷面はその谷底面と山面の頂上面とを互いに結ぶ斜面を有していることを特徴とする請求項２に記載の管部材用被覆材熱融着具。 In the concavo-convex portion, the valley surface continues in an annular shape around the mountain surface, the mountain surface has a slope connecting the top surface and the valley bottom surface of the valley surface around the top surface, and the valley surface is the bottom surface of the valley surface. The pipe member covering material heat-sealing tool according to claim 2, further comprising a slope connecting the top surface and the top surface of the mountain surface to each other. 前記凹凸部において、各山面の周囲で環状に連続する各谷面が互いに連続して網目状につながっていることを特徴とする請求項２または請求項３に記載の管部材用被覆材熱融着具。 4. The tube member covering material heat according to claim 2, wherein in the uneven portion, the valley surfaces that are annularly continuous around each mountain surface are continuously connected to each other in a mesh shape. 5. Fusion tool. 前記凹凸部において、各山面と各谷面とは、前記挿通孔の中心線を中心とする円周方向と半径方向とのうち少なくともいずれか一方の方向へ交互に連続して並設されていることを特徴とする請求項２または請求項３または請求項４に記載の管部材用被覆材熱融着具。 In the concavo-convex portion, each mountain surface and each valley surface are alternately and continuously arranged in at least one of a circumferential direction and a radial direction around the center line of the insertion hole. The covering material heat-sealing tool for pipe members according to claim 2, 3 or 4, wherein 前記加熱手段は、加熱面を有する側壁の内面に面するヒータであることを特徴とする請求項１から請求項５のうちいずれかの請求項に記載の管部材用被覆材熱融着具。 The said heating means is a heater which faces the inner surface of the side wall which has a heating surface, The covering material heat sealing | fusion tool for pipe members of any one of Claims 1-5 characterized by the above-mentioned. 前記加熱部材は取付部で相対回動可能に支持されて互いに開閉される一対の加熱体を備え、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前記挿通孔を形成するための割孔を形成したことを特徴とする請求項１から請求項６のうちいずれかの請求項に記載の管部材用被覆材熱融着具。 The heating member includes a pair of heating bodies that are supported by the mounting portion so as to be relatively rotatable and open and close to each other, and in both heating bodies that are in a closed state, relative to each other in a rotation direction centering on a rotation center line of the mounting portion. The pipe member covering material heat fusion according to any one of claims 1 to 6, wherein a split hole for forming the insertion hole is formed in the facing split edge. Ingredients.
JP2007198953A 2007-05-31 2007-07-31 Covering material heat sealer for pipe members Expired - Fee Related JP5000414B2 (en)

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JPH06305026A (en) * 1993-04-23 1994-11-01 Sekisui Chem Co Ltd Butt fusion-bonding heating jig and butt fusion-bonding method of thermoplastic resin tube using the same jig
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JP4987340B2 (en) * 2006-04-06 2012-07-25 株式会社イノアックコーポレーション Heat insulation material joining method for fluid pipe with heat insulation material and heat insulation material for heat insulation material for fluid pipe
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