JP5340429B2 - Frame member joining method - Google Patents

Frame member joining method Download PDF

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JP5340429B2
JP5340429B2 JP2012012984A JP2012012984A JP5340429B2 JP 5340429 B2 JP5340429 B2 JP 5340429B2 JP 2012012984 A JP2012012984 A JP 2012012984A JP 2012012984 A JP2012012984 A JP 2012012984A JP 5340429 B2 JP5340429 B2 JP 5340429B2
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frame member
joining
front edge
frame
cutting front
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JP2013151816A (en
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満 高橋
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株式会社エクセルシャノン
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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
    • 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
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/324—Avoiding burr formation
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by 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
    • B29C66/50—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
    • B29C66/524—Joining profiled elements
    • B29C66/5243—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces
    • B29C66/52431—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/001—Profiled members, e.g. beams, sections
    • B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
    • B29L2031/005—Profiled members, e.g. beams, sections having a profiled transverse cross-section for making window frames

Description

本発明は、窓枠の如き枠体を構成するために２個の合成樹脂製枠部材の接合端面を接合する接合方法に関する。   The present invention relates to a joining method for joining joining end surfaces of two synthetic resin frame members to form a frame body such as a window frame.

下記特許文献１に開示されている如く、窓枠の如き矩形枠体は２個の縦枠部材と２個の横枠部材とを適宜に接合して形成されている。更に詳しくは、片側縦枠体の上側接合端面と下側接合端面とに夫々上側横枠体の片側接合端と下側横枠体の片側接合端面とを接合すると共に、他側縦枠体の上側接合端面と下側接合端面とに夫々上側横枠体の他側接合端と下側横枠体の他側接合端面とを接合することによって形成されている。縦枠部材及び横枠部材の接合端面は、４５度でよい傾斜角度を有する傾斜面にせしめられている。２個の枠部材の接合端面の接合、例えば片側縦枠部材である第一の枠部材の接合端面と上側横枠部材である第二の枠部材の接合端面との接合は、第一の枠部材の接合端面を所要温度に加熱されている加熱板の片面に当接せしめると共に、第二の枠部材の接合端面を上記加熱板の他面に当接せしめて、第一の枠部材の接合端面と第二の枠部材の接合端面とを加熱溶融する加熱工程と、この加熱工程に後に加熱板の片面から離隔せしめた第一の枠部材の接合端面と加熱板の他面から離隔せしめた第二の枠部材の接合端面とを相互に押付けて接合する押付工程とを遂行することによって達成される。   As disclosed in Patent Document 1 below, a rectangular frame such as a window frame is formed by appropriately joining two vertical frame members and two horizontal frame members. More specifically, the one side joint end of the upper side horizontal frame body and the one side joint end face of the lower side horizontal frame body are joined to the upper side joint end surface and the lower side joint end surface of the one side vertical frame body, respectively. The upper side joining end surface and the lower side joining end surface are formed by joining the other side joining end of the upper side horizontal frame body and the other side joining end surface of the lower side horizontal frame body, respectively. The joining end surfaces of the vertical frame member and the horizontal frame member are inclined surfaces having an inclination angle of 45 degrees. The joining of the joining end surfaces of the two frame members, for example, the joining of the joining end surface of the first frame member that is a one-side vertical frame member and the joining end surface of the second frame member that is an upper horizontal frame member is performed by the first frame. The joining end surface of the member is brought into contact with one surface of the heating plate heated to a required temperature, and the joining end surface of the second frame member is brought into contact with the other surface of the heating plate to join the first frame member. The heating step of heating and melting the end face and the joining end face of the second frame member, and the joining end face of the first frame member separated from one side of the heating plate after this heating step and the other side of the heating plate were separated. This is achieved by performing a pressing step of pressing and joining the joining end surfaces of the second frame members to each other.

押付工程において加熱溶融された２個の接合端面を相互に押付けると、押付けられた接合端面間から外方に向かって溶融樹脂が張り出して溶融バリとなる傾向がある。形成される枠体において屋内又は屋外に露呈しない表面に生成されるバリは特に問題を発生せしめることはないが、形成される枠体において屋内又は屋外に露呈する所定表面に形成されるバリは枠体の外観を毀損してしまう。そこで、下記特許文献１には、外観を毀損するバリの生成を回避する方式が開示されている。   When the two joining end faces heated and melted in the pressing step are pressed against each other, the molten resin tends to protrude outward from between the pressed joining end faces to form a melting burr. The burr generated on the surface that is not exposed indoors or outdoors in the formed frame does not cause any particular problem, but the burr formed on the predetermined surface exposed indoors or outdoors in the formed frame is a frame. The appearance of the body will be damaged. Therefore, Patent Document 1 below discloses a method for avoiding the generation of burrs that damage the appearance.

特開２０１０−１５０８１９号公報JP 2010-150819 A

上記特許文献１に開示されている方式によれば、押付工程において所定表面にバリが発生することを回避することができる。しかしながら、本発明者の経験によれば、押付工程に先立って遂行される加熱工程においても、枠部材の接合端面が加熱板の平面に当接せしめられて加熱溶融される際に、溶融した合成樹脂が接合端面から外方に張り出して溶融バリを生成する傾向があり、かかる溶融バリをそのまま残留せしめて押付工程を遂行すると、形成される枠体の外観が望ましくないものになってしまうことが判明している。加熱工程における溶融バリの発生は、加熱板に対する枠部材の接合端面の当接圧力を小さい値に制限し、そしてまた接合端面の加熱を緩やかに遂行することによって回避することが意図されるが、かくすると接合端面の加熱に長時間を要し、接合効率が著しく低下してしまう。   According to the method disclosed in Patent Document 1, it is possible to avoid the occurrence of burrs on the predetermined surface in the pressing step. However, according to the experience of the present inventor, even in the heating process performed prior to the pressing process, when the joining end surface of the frame member is brought into contact with the flat surface of the heating plate and heated and melted, There is a tendency that the resin protrudes outward from the joint end face to generate a molten burr, and if the molten burr is left as it is and the pressing process is performed, the appearance of the formed frame body may become undesirable. It turns out. The generation of molten burrs in the heating process is intended to be avoided by limiting the contact pressure of the joining end face of the frame member to the heating plate to a small value, and also by slowly heating the joining end face, In this case, it takes a long time to heat the joining end faces, and the joining efficiency is significantly reduced.

本発明は上記事実に鑑みてなされたものであり、その主たる技術的課題は、接合効率の著しい低下と伴うことなく、形成される枠体における外観を毀損してしまう虞がある加熱工程において発生した溶融バリを、押付工程の遂行に先立って充分良好に除去することができる、新規且つ改良された接合方法を提供することである。   The present invention has been made in view of the above-mentioned facts, and its main technical problem occurs in a heating process that may damage the appearance of the formed frame body without being accompanied by a significant decrease in bonding efficiency. It is an object of the present invention to provide a new and improved joining method that can remove the molten burrs sufficiently satisfactorily before performing the pressing step.

本発明者は、鋭意研究及び実験の結果、加熱工程の後で且つ押付工程の前に、枠部材の加熱された接合端面を加熱板から離隔せしめ、次いで枠部材の所定表面に沿って規制部材を接合端面に向けて相対的に移動せしめて接合端面を超えて突出せしめ、これによって接合端面から所定表面を超えて張り出した溶融バリを切除するバリ切除工程を遂行することによって、上記主たる技術的課題を達成することができることを見出した。   As a result of diligent research and experiment, the inventor has separated the heated joining end surface of the frame member from the heating plate after the heating step and before the pressing step, and then the regulating member along the predetermined surface of the frame member. The above-mentioned main technical is achieved by performing a burr cutting step of cutting the molten burrs protruding beyond the predetermined surface from the bonded end surface by moving it relatively toward the bonded end surface and projecting beyond the bonded end surface. I have found that I can achieve the task.

即ち、本発明によれば、上記主たる技術的課題を達成する接合方法として、合成樹脂製の第一の枠部材の接合端面と合成樹脂製の第二の枠部材の接合端面とを接合する接合方法にして、
該第一の枠部材の該接合端面を加熱板の片面に当接せしめると共に、該第二の枠部材の該接合端面を該加熱板の他面に当接せしめて、該第一の枠部材の該接合端面と該第二の枠部材の該接合端面とを加熱溶融する加熱工程と、
該加熱工程の後に、該第一の枠部材の加熱された該接合端面と該第二の枠部材の接合端面とを相互に押付けて接合する押付工程と、
を含む接合方法において、
更に、該加熱工程の後で且つ該押付工程の前に、該第一の枠部材の該接合端面を該加熱板の該片面から離隔せしめると共に、該第二の枠部材の該接合端面を該加熱板の該他面から離隔せしめ、次いで該第一の枠部材の所定表面に沿って第一の規制部材を該接合端面に向けて相対的に移動せしめて該接合端面を超えて突出せしめ、これによって該接合端面から該所定表面を超えて張り出した溶融バリを切除すると共に、該第二の枠部材の所定表面に沿って第二の規制部材を該接合端面に向けて相対的に移動せしめて該接合端面を超えて突出せしめ、これによって該接合端面から該所定表面を超えて張り出した溶融バリを切除するバリ切除工程を含む、ことを特徴とする接合方法が提供される。 That is, according to the present invention, as a joining method for achieving the main technical problem, joining is performed by joining the joining end surface of the first frame member made of synthetic resin and the joining end surface of the second frame member made of synthetic resin. In the way
The joining frame of the first frame member is brought into contact with one surface of the heating plate, and the joining frame of the second frame member is brought into contact with the other surface of the heating plate, A heating step of heating and melting the joining end face of the second frame member and the joining end face of the second frame member;
After the heating step, a pressing step of pressing the bonded end surface of the first frame member and the bonded end surface of the second frame member against each other,
In a joining method including:
Further, after the heating step and before the pressing step, the joining end surface of the first frame member is separated from the one surface of the heating plate, and the joining end surface of the second frame member is Separating from the other surface of the heating plate, and then moving the first restricting member relative to the joining end surface along the predetermined surface of the first frame member to project beyond the joining end surface; As a result, the molten burrs projecting beyond the predetermined surface from the joint end surface are removed, and the second restricting member is moved relatively toward the joint end surface along the predetermined surface of the second frame member. And a burr cutting step of cutting out the molten burrs protruding beyond the predetermined surface from the bonding end surface, thereby providing a bonding method.

好ましくは、該第一の規制部材は該第一の枠部材の該所定表面に沿って延在する鋭い切断前縁及び該切断前縁から後方に向かって該所定表面から離れる方向に傾斜して延びる後退面を有し、該第二の規制部材も該第二の枠部材の該所定表面に沿って延在する鋭い切断前縁及び該切断前縁から後方に向かって該所定表面から離れる方向に傾斜して延びる後退面を有する。該第一の規制部材の該切断前縁は該第一の枠部材の該接合端面に平行に延在し、該第二の規制部材の該切断前縁も該第二の枠部材の該接合端面に平行に延在し、該押付工程においては、該第一の枠部材の加熱された該接合端面と該第二の枠部材の加熱された該接合端面とを相互に押付けるのに先立って、該第一の規制部材の該切断前縁と該第二の規制部材の該切断前縁とを近接乃至当接せしめ、これによって該押付工程において該第一の枠部材の該所定表面及び該第二の枠部材の該所定表面を超えて溶融バリが張り出すのを回避するのが好適である。該押付工程において、該第一の規制部材の該切断前縁と該第二の規制部材の該切断前縁とは０．０５乃至０．１５ｍｍの間隙をおいて近接せしめられるのが好都合である。該第一の規制部材は該第一の枠部材の該接合端面と平行に延在し且つ該切断前縁よりも前方に位置する当接面を有し、該第二の規制部材も該第二の枠部材の該接合端面と平行に延在し且つ該切断前縁よりも前方に位置する当接面を有し、該押付工程において該第一の規制部材の該当接面と該第二の規制部材の該当接面とが当接せしめられることによって該第一の規制部材の該切断前縁と該第二の規制部材の該切断前縁とが近接した状態にせしめられるのが好適である。好ましくは、該第一の規制部材の該後退面は該第一の枠部材の該所定表面に対して２０乃至４０度の傾斜角度を有し、該第二の規制部材の該後退面も該第二の枠部材の該所定表面に対して２０乃至４０度の傾斜角度を有する。   Preferably, the first restricting member is inclined in a direction away from the predetermined surface toward the rear from the sharp cutting front edge extending along the predetermined surface of the first frame member and the cutting front edge. A sharp cutting front edge extending along the predetermined surface of the second frame member, and a direction away from the predetermined surface rearward from the cutting front edge. And a receding surface extending at an angle. The cutting front edge of the first restricting member extends parallel to the joining end face of the first frame member, and the cutting leading edge of the second restricting member is also joined to the second frame member. Extending in parallel with the end face, and in the pressing step, prior to pressing the heated joining end face of the first frame member and the heated joining end face of the second frame member together. The cutting front edge of the first restricting member and the cutting front edge of the second restricting member are brought close to or in contact with each other, whereby the predetermined surface of the first frame member and It is preferable to avoid the molten burrs from protruding beyond the predetermined surface of the second frame member. In the pressing step, the cutting front edge of the first restricting member and the cutting front edge of the second restricting member are conveniently brought close to each other with a gap of 0.05 to 0.15 mm. . The first restricting member has a contact surface extending in parallel with the joining end surface of the first frame member and positioned in front of the cutting front edge, and the second restricting member is also the first restricting member. A contact surface extending in parallel with the joint end surface of the second frame member and positioned in front of the cutting front edge; and the corresponding contact surface of the first restricting member and the second surface in the pressing step It is preferable that the cutting leading edge of the first regulating member and the cutting leading edge of the second regulating member are brought close to each other by contacting the corresponding contact surface of the regulating member. is there. Preferably, the receding surface of the first regulating member has an inclination angle of 20 to 40 degrees with respect to the predetermined surface of the first frame member, and the receding surface of the second regulating member is also the The tilt angle is 20 to 40 degrees with respect to the predetermined surface of the second frame member.

本発明の接合方法によれば、加熱工程で生成された溶融バリをバリ切除工程において充分良好に除去することができ、そしてバリ切除工程は長時間を要することなく充分迅速に遂行することができ、かくして上記主たる技術的課題が達成される。   According to the bonding method of the present invention, the molten burr generated in the heating process can be sufficiently satisfactorily removed in the burr cutting process, and the burr cutting process can be performed sufficiently quickly without requiring a long time. Thus, the main technical problem is achieved.

本発明に従って構成された接合方法における第一段階（把持工程）を示す簡略断面図。The simplified sectional view which shows the 1st step (gripping process) in the joining method comprised according to this invention. 本発明に従って構成された接合方法における第二段階（加熱前工程）を示す簡略断面図。The simplified sectional view showing the 2nd stage (process before heating) in the joining method constituted according to the present invention. 本発明に従って構成された接合方法における第三段階（加熱工程）を示す簡略断面図。The simplified sectional view which shows the 3rd step (heating process) in the joining method constituted according to the present invention. 本発明に従って構成された接合方法における第四段階（バリ切除工程）を示す簡略断面図。The simplified sectional view showing the 4th stage (burr cutting process) in the joining method constituted according to the present invention. 本発明に従って構成された接合方法における第五段階（押付前工程）を示す簡略断面図。The simplified sectional view which shows the 5th step (process before pressing) in the joining method constituted according to the present invention. 本発明に従って構成された接合方法における第六段階（押付工程）を示す簡略断面図。The simplified sectional view showing the 6th stage (pressing process) in the joining method constituted according to the present invention.

以下、本発明に従って構成された接合方法の好適実施形態について、添付図面を参照して更に詳細に説明する。   Hereinafter, a preferred embodiment of a joining method configured according to the present invention will be described in more detail with reference to the accompanying drawings.

図１を参照して説明すると、図示の実施形態においては、左側に位置する第一の枠部材２ａの接合端面（右端面）４ａと右側に位置する第二の枠部材２ｂの接合端面（左端面）４ｂとを接合する。第一の枠部材２ａ及び第二の枠部材２ｂは、適宜の合成樹脂、例えば主層を構成する塩化ビニルと表面層を構成するアクリル樹脂、から供押出成形によって好都合に形成することができ、両者の横断面形状は実質上同一である。矩形枠体の片側縦枠部材を構成する第一の枠部材２ａの接合端面４ａは４５度の傾斜角度で傾斜する傾斜面であり、これに対応して矩形枠体の上側枠部材を構成する第二の枠部材２ｂの接合端面４ｂも４５度の傾斜角度で傾斜する傾斜面であるのが好都合である。第一の枠部材２ａ及び第二の枠部材２ｂを含む枠体は図１において下面及び上面が屋内及び屋外に露呈され、従って下面及び上面には外観を毀損するバリが実質上存在しないことが重要である。   Referring to FIG. 1, in the illustrated embodiment, the joining end surface (right end surface) 4a of the first frame member 2a located on the left side and the joining end surface (left end) of the second frame member 2b located on the right side are illustrated. Surface) 4b. The first frame member 2a and the second frame member 2b can be conveniently formed by extrusion molding from an appropriate synthetic resin, for example, vinyl chloride constituting the main layer and acrylic resin constituting the surface layer, Both cross-sectional shapes are substantially the same. The joint end surface 4a of the first frame member 2a constituting the one-side vertical frame member of the rectangular frame is an inclined surface inclined at an inclination angle of 45 degrees, and the upper frame member of the rectangular frame is correspondingly formed. Conveniently, the joining end surface 4b of the second frame member 2b is also an inclined surface inclined at an inclination angle of 45 degrees. In the frame including the first frame member 2a and the second frame member 2b, the lower surface and the upper surface in FIG. 1 are exposed indoors and outdoors, and therefore there is substantially no burr that damages the appearance on the lower surface and the upper surface. is important.

本発明に従って構成された接合方法の好適実施形態における第一段階においては、図１に図示する把持工程が遂行される。この把持工程においては、第一の把持手段６ａによって第一の枠部材２ａを所要とおりに把持すると共に、第二の把持手段６ｂによって第二の枠部材２ｂを所要とおりに把持する。   In the first stage of the preferred embodiment of the joining method constructed according to the present invention, the gripping process illustrated in FIG. 1 is performed. In this gripping process, the first grip member 6a grips the first frame member 2a as required, and the second grip means 6b grips the second frame member 2b as required.

図示の実施形態における第一の把持手段６ａは一対の把持盤８ａ−１及び８ａ−２を含んでいる。把持盤８ａ−１は第一の枠部材２ａの実質上平坦に延在する片面（図１において下面）に当接せしめられる平坦な把持上面を有し、把持盤８ａ−２は第一の枠部材２ａの他面（図１において上面）に当接せしめられる平坦把持下面を有する。一対の把持盤８ａ−１及び８ａ−２は、適宜の駆動機構（図示していない）によって一体として図１において左右方向に移動せしめられると共に、適宜の昇降機構（図示していないが、例えば把持盤８ａ−１に対して把持盤８ａ−２を昇降動せしめる昇降機構）によって相対的に接近及び離隔する方向に移動せしめられる。把持盤８ａ−１には規制部材１０ａ−１が付設され、把持盤８ａ−２には規制部材１０ａ−２が付設されている。規制部材１０ａ−１は把持盤８ａ−１の把持上面と面一をなす上面を有し、この上面の先端には鋭い切断前縁１２ａ−１が形成されている。この切断前縁１２ａ−１は把持される第一の枠部材２ａの接合端面４ａと平行に延在するのが好都合である。規制部材１０ａ−１は、更に、切断前縁１２ａ−１から後方（図１において左方）に向かって下方に傾斜して延びる後退面１４ａ−１、この後退面１４ａ−１から前方に向かって下方に傾斜して延びる付加傾斜面１６ａ−１及び付加傾斜面１６ａ−１から下方に垂下する当接面１８ａ−１を有する。後退面１４ａ−１の傾斜角度θは２０乃至４０度程度であるのが好適である。当接面１８ａ−１は切断前縁１２ａ−１と平行に、従って把持される第一の枠部材２ａの接合端面４ａと平行に、延在すると共に、切断前縁１２ａ−１よりも若干前方に突出せしめられているのが好都合である。切断前縁１２ａ−１と当接面１８ａ−１との間隔ｘは０．０２５乃至０．０７５ｍｍであるのが好適である。規制部材１０ａ−１は、把持盤８ａ−１内に配設された流体圧機構（図４のそのシリンダの一部のみを図示している）によって、把持盤８ａ−１対して図１に図示する位置から前方側に伸長及び後退せしめられる。第一の把持手段６ａにおける把持盤８ａ−２に付設されている規制部材１０ａ−２は把持盤８ａ−１に付設されている規制部材１０ａ−１と実質上同一形態、更に詳細には図１において左右方向に延びる中心軸線に関して対称構造、である。即ち、規制部材１０ａ−２は把持盤８ａ−２の把持下面と面一をなす下面を有し、この下面の先端には鋭い切断前縁１２ａ−２が形成されている。この切断前縁１２ａ−２は把持される第一の枠部材２ａの接合端面４ａと平行に延在するのが好都合である。規制部材１０ａ−２は、更に、切断前縁１２ａ−２から後方（図１において左方）に向かって上方に傾斜して延びる後退面１４ａ−２、この後退面１４ａ−２から前方に向かって上方に傾斜して延びる付加傾斜面１６ａ−２及び付加傾斜面１６ａ−２から上方に垂立する当接面１８ａ−２を有する。後退面１４ａ−２の傾斜角度θは２０乃至４０度程度であるのが好適である。当接面１８ａ−２は切断前縁１２ａ−２と平行に、従って把持される第一の枠部材２ａの接合端面４ａと平行に、延在すると共に、切断前縁１２ａ−２よりも若干前方に突出せしめられているのが好都合である。切断前縁１２ａ−２と当接面１８ａ−２との間隔ｘは０．０２５乃至０．０７５ｍｍであるのが好適である。規制部材１０ａ−２は、把持盤８ａ−２内に配設された流体圧機構（図４のそのシリンダの一部のみを図示している）によって、把持盤８ａ−２対して図１に図示する位置から前方側に伸長及び後退せしめられる。   The first gripping means 6a in the illustrated embodiment includes a pair of gripping disks 8a-1 and 8a-2. The gripping disk 8a-1 has a flat gripping upper surface that is brought into contact with one side (lower surface in FIG. 1) that extends substantially flat of the first frame member 2a, and the gripping disk 8a-2 is the first frame member. It has a flat gripping lower surface that is brought into contact with the other surface (the upper surface in FIG. 1) of the member 2a. The pair of gripping disks 8a-1 and 8a-2 are moved in the left-right direction in FIG. 1 as a unit by an appropriate drive mechanism (not shown), and an appropriate lifting mechanism (not shown, for example, gripping, for example) The lifting / lowering mechanism that moves the gripping disk 8a-2 up and down with respect to the board 8a-1 is moved in a direction approaching and separating relatively. A regulating member 10a-1 is attached to the gripping board 8a-1, and a regulating member 10a-2 is attached to the gripping board 8a-2. The regulating member 10a-1 has an upper surface that is flush with the upper surface of the gripper 8a-1, and a sharp cutting edge 12a-1 is formed at the tip of the upper surface. The cutting front edge 12a-1 advantageously extends in parallel with the joint end face 4a of the first frame member 2a to be gripped. The restricting member 10a-1 further extends from the front cutting edge 12a-1 to the rear (leftward in FIG. 1) and inclines downward, and extends forward from the rearward surface 14a-1. It has the additional inclined surface 16a-1 which inclines downward, and the contact surface 18a-1 which hangs down from the additional inclined surface 16a-1. The inclination angle θ of the receding surface 14a-1 is preferably about 20 to 40 degrees. The contact surface 18a-1 extends in parallel with the cutting front edge 12a-1 and thus in parallel with the joint end surface 4a of the first frame member 2a to be gripped, and is slightly forward of the cutting front edge 12a-1. It is convenient that it protrudes from the surface. The distance x between the cutting front edge 12a-1 and the contact surface 18a-1 is preferably 0.025 to 0.075 mm. The regulating member 10a-1 is illustrated in FIG. 1 with respect to the gripping plate 8a-1 by a fluid pressure mechanism (only a part of the cylinder of FIG. 4 is illustrated) disposed in the gripping plate 8a-1. It is extended and retracted from the position to the front side. The regulating member 10a-2 attached to the gripping plate 8a-2 in the first gripping means 6a is substantially the same as the regulating member 10a-1 attached to the holding plate 8a-1, and more specifically FIG. 2 is a symmetrical structure with respect to a central axis extending in the left-right direction. That is, the regulating member 10a-2 has a lower surface that is flush with the lower grip surface of the gripper 8a-2, and a sharp cutting front edge 12a-2 is formed at the tip of the lower surface. This cutting front edge 12a-2 advantageously extends parallel to the joining end face 4a of the first frame member 2a to be gripped. The restricting member 10a-2 further extends from the cutting front edge 12a-2 to the rear (left side in FIG. 1) and inclines upward, and extends forward from the receding surface 14a-2. It has an additional inclined surface 16a-2 that extends upwardly and a contact surface 18a-2 that hangs upward from the additional inclined surface 16a-2. The inclination angle θ of the receding surface 14a-2 is preferably about 20 to 40 degrees. The contact surface 18a-2 extends in parallel with the cutting front edge 12a-2, and thus in parallel with the joining end surface 4a of the first frame member 2a to be gripped, and is slightly forward of the cutting front edge 12a-2. It is convenient that it protrudes from the surface. The distance x between the cutting front edge 12a-2 and the contact surface 18a-2 is preferably 0.025 to 0.075 mm. The regulating member 10a-2 is illustrated in FIG. 1 with respect to the gripping plate 8a-2 by a fluid pressure mechanism (only a part of the cylinder of FIG. 4 is illustrated) disposed in the gripping plate 8a-2. It is extended and retracted from the position to the front side.

第二の枠部材２ｂを把持する第二の把持手段６ｂも、第一の把持手段６ａと同様に一対の把持盤８ｂ−１及び８ｂ−２を含み、把持盤８ｂ−１及び８ｂ−２には、夫々、規制部材１０ｂ−１及び１０ｂ−２が付設されている。第二の把持手段６ｂにおける把持盤８ｂ−１及び８ｂ−２並びに規制部材１０ｂ−１及び１０ｂ−２の構成は、第一の把持手段６ａにおける把持盤８ａ−１及び８ａ−２並びに規制部材１０ａ−１及び１０ａ−２と実質上同一、更に詳しくは図１において上下方向に延びる中心軸線に関して対称構成である。従って、説明の重複を避けるために、第二の把持手段６ｂにおける把持盤８ｂ−１及び８ｂ−２並びに規制部材１０ｂ−１及び１０ｂ−２の構成についての詳細な説明は省略する。   Similarly to the first gripping means 6a, the second gripping means 6b that grips the second frame member 2b also includes a pair of gripping disks 8b-1 and 8b-2. Are respectively provided with regulating members 10b-1 and 10b-2. The configuration of the gripping disks 8b-1 and 8b-2 and the regulating members 10b-1 and 10b-2 in the second gripping means 6b is the same as that of the gripping disks 8a-1 and 8a-2 and the regulating member 10a in the first gripping means 6a. -1 and 10a-2 are substantially the same, and more specifically, it is symmetrical with respect to the central axis extending in the vertical direction in FIG. Therefore, in order to avoid duplication of description, detailed description of the configuration of the gripping disks 8b-1 and 8b-2 and the regulating members 10b-1 and 10b-2 in the second gripping means 6b is omitted.

図１に図示する把持工程においては、第一の把持手段６ａによって第一の枠部材２ａを所要とおりに把持し、第二の把持手段６ｂによって第二の枠部材２ｂを所要とおりに把持する。更に詳述すると、第一の把持手段６ａの把持盤８ａ−１及び把持盤８ａ−２間に第一の枠部材２ａを把持し、第二の把持手段６ｂの把持盤８ｂ−１及び把持盤８ｂ−２間に第二の枠部材２ｂを把持する。第一の枠部材２ａの接合端面４ａと第二の枠部材２ｂの接合端面４ｂとは相互に整合して対向せしめられる。そして、第一の枠部材２ａの接合端面４ａは規制部材１０ａ−１及び１０ａ−２の切断前縁１２ａ−１及び１２ａ−２を越えて前方に突出せしめられ、同様に第二の枠部材２ｂの接合端面４ｂも規制部材１０ｂ−１及び１０ｂ−２の切断前縁１２ｂ−１及び１２ｂ−２を越えて前方に突出せしめられる。   In the gripping step shown in FIG. 1, the first frame member 2a is gripped as required by the first gripping means 6a, and the second frame member 2b is gripped as required by the second gripping means 6b. More specifically, the first frame member 2a is held between the holding plate 8a-1 and the holding plate 8a-2 of the first holding unit 6a, and the holding plate 8b-1 and the holding plate of the second holding unit 6b. The second frame member 2b is held between 8b-2. The joining end surface 4a of the first frame member 2a and the joining end surface 4b of the second frame member 2b are aligned with each other and face each other. Then, the joining end surface 4a of the first frame member 2a is projected forward beyond the cutting front edges 12a-1 and 12a-2 of the regulating members 10a-1 and 10a-2, and similarly the second frame member 2b. The joining end face 4b is also projected forward beyond the cutting front edges 12b-1 and 12b-2 of the regulating members 10b-1 and 10b-2.

次いで、図２に図示する加熱前工程において、第一の枠部材２ａの接合端面４ａと第二の枠部材２ｂの接合端面４ｂとの間に加熱板２０が介在せしめられる。それ自体は周知の形態でよい加熱板２０の左右両面は、例えば２３０乃至２８０℃程度に加熱されている。   Next, in the preheating step illustrated in FIG. 2, the heating plate 20 is interposed between the joining end surface 4a of the first frame member 2a and the joining end surface 4b of the second frame member 2b. The left and right surfaces of the heating plate 20 which may be in a known form are heated to about 230 to 280 ° C., for example.

しかる後に、図３に図示する加熱工程が遂行される。この加熱工程においては、第一の把持手段６ａ及び第二の把持手段６ｂが加熱板２０に向けて移動せしめられ、第一の枠部材２ａの接合端面４ａが所要圧力で加熱板２０の片面（左面）に当接せしめられ、第二の枠部材２ｂの接合端面４ｂが所要圧力で加熱板２０の他面（右面）に当接せしめられる。かくして、第一の枠部材２ａの接合端面４ａ及び第二の枠部材２ｂの接合端面４ｂが加熱溶融される。この際には、図３に図示する如く、溶融バリ２２ａ及び２２ｂが、夫々、第一の枠部材２ａの下面及び上面並びに第二の枠部材２ｂの下面及び上面を超えて張り出す。張り出した溶融バリ２２ａ及び２２ｂは、夫々、規制部材１０ａ−１及び１０ａ−２の後退面１４ａ−１及び１４ａ−２と付加傾斜面１６ａ−１及び１６ａ−２によって区画される空間並びに規制部材１０ｂ−１及び１０ｂ−２の後退面１４ｂ−１及び１４ｂ−２と付加傾斜面１６ｂ−１及び１６ｂ−２によって区画される空間に収容される。   Thereafter, the heating process illustrated in FIG. 3 is performed. In this heating step, the first gripping means 6a and the second gripping means 6b are moved toward the heating plate 20, and the joining end surface 4a of the first frame member 2a is moved to one side ( The joining end face 4b of the second frame member 2b is brought into contact with the other face (right face) of the heating plate 20 with a required pressure. Thus, the joining end surface 4a of the first frame member 2a and the joining end surface 4b of the second frame member 2b are heated and melted. At this time, as shown in FIG. 3, the molten burrs 22a and 22b protrude beyond the lower surface and the upper surface of the first frame member 2a and the lower surface and the upper surface of the second frame member 2b, respectively. The overhanging molten burrs 22a and 22b are respectively defined by the space defined by the receding surfaces 14a-1 and 14a-2 and the additional inclined surfaces 16a-1 and 16a-2 of the regulating members 10a-1 and 10a-2 and the regulating member 10b. -1 and 10b-2 are accommodated in a space defined by the receding surfaces 14b-1 and 14b-2 and the additional inclined surfaces 16b-1 and 16b-2.

次いで、第一の把持手段６ａ及び第二の把持手段６ｂが加熱板２０から遠ざかる方向に移動せしめられ、第一の枠部材２ａの接合端面４ａ及び第二の枠部材２ｂの接合端面４ｂが加熱板２０から離隔せしめられ、そして加熱板２０が第一の枠部材２ａの接合端面４ａと第二の枠部材２ｂの接合端面４ｂとの間から取り出される。しかる後に、図４に図示するバリ切除工程が遂行される。このバリ切除工程においては、把持盤８ａ−１及び８ａ−２に付設されている規制部材１０ａ−１及び１０ａ−２が第一の枠部材２ａの下面及び上面に沿って前進（図４において右方に移動）せしめられて第一の枠部材２ａの接合端面４ａを越えて突出せしめられ、切断前縁１２ａ−１及び１２ａ−２の切断作用によって溶融バリ２２ａが切除されて下方に落下せしめられる。同様に、把持盤８ｂ−１及び８ｂ−２に付設されている規制部材１０ｂ−１及び１０ｂ−２が第二の枠部材２ｂの下面及び上面に沿って前進（図４において左方に移動）せしめられて第二の枠部材２ｂの接合端面４ｂを越えて突出せしめられ、切断前縁１２ｂ−１及び１２ｂ−２の切断作用によって溶融バリ２２ｂが切除されて下方に落下せしめられる。   Next, the first gripping means 6a and the second gripping means 6b are moved away from the heating plate 20, and the joining end face 4a of the first frame member 2a and the joining end face 4b of the second frame member 2b are heated. The heating plate 20 is separated from the plate 20, and the heating plate 20 is taken out from between the joining end surface 4a of the first frame member 2a and the joining end surface 4b of the second frame member 2b. Thereafter, the burr cutting process shown in FIG. 4 is performed. In this burr cutting step, the regulating members 10a-1 and 10a-2 attached to the gripping plates 8a-1 and 8a-2 move forward along the lower surface and the upper surface of the first frame member 2a (right in FIG. 4). And the molten burrs 22a are cut off by the cutting action of the cutting front edges 12a-1 and 12a-2 and dropped downward. . Similarly, the regulating members 10b-1 and 10b-2 attached to the gripping boards 8b-1 and 8b-2 move forward along the lower surface and the upper surface of the second frame member 2b (move leftward in FIG. 4). The burrs 22b are protruded beyond the joining end face 4b of the second frame member 2b, and the molten burr 22b is cut out and dropped downward by the cutting action of the cutting front edges 12b-1 and 12b-2.

しかる後に、図５に図示する押付前工程が遂行される。この押付前工程においては、第一の把持手段６ａと第二の把持手段６ｂとが相互に接近する方向に移動せしめられ、第一の把持手段６ａにおける規制部材１０ａ−１及び１０ａ−２の当接面１８ａ−１及び１８ａ−２と第二の把持手段６ｂにおける規制部材１０ｂ−１及び１０ｂ−２の当接面１８ｂ−１及び１８ｂ−２が夫々当接せしめられる。かかる状態において、規制部材１０ａ−１及び１０ａ−２の切断前縁１２ａ−１及び１２ａ−２と規制部材１０ｂ−１及び１０ｂ−２の切断前縁１２ｂ−１及び１２ｂ−２との間には、０．０５乃至０．１５ｍｍ程度の間隙ｙ（ｙ＝２ｘ）が存在するのが好都合である。   Thereafter, the pre-pressing process shown in FIG. 5 is performed. In this pre-pressing step, the first gripping means 6a and the second gripping means 6b are moved in a direction approaching each other, and the contact of the regulating members 10a-1 and 10a-2 in the first gripping means 6a is made. The contact surfaces 18a-1 and 18a-2 are brought into contact with the contact surfaces 18b-1 and 18b-2 of the regulating members 10b-1 and 10b-2 in the second gripping means 6b, respectively. In this state, between the cutting front edges 12a-1 and 12a-2 of the regulating members 10a-1 and 10a-2 and the cutting front edges 12b-1 and 12b-2 of the regulating members 10b-1 and 10b-2, It is advantageous that a gap y (y = 2x) of about 0.05 to 0.15 mm exists.

次いで、図６に図示する押付工程が遂行される。この押付工程においては、第一の把持手段６ａと第二の把持出段６ｂとが更に相互に接近する方向に移動され、第一の枠部材２ａの加熱された接合端面４ａと第二の枠部材２ｂの接合端面４ｂとが相互に所要圧力で押し付けられ、これによって接合端面４ａと接合端面４ｂとが相互に接合される。この際には、把持盤８ａ−１及び８ａ−２に対して規制部材１０ａ−１及び１０ａ−２が漸次後退せしめられると共に、把持盤８ｂ−１及び８ｂ−２に対して規制部材１０ｂ−１及び１０ｂ−２が漸次後退せしめられる。図６に図示する押付工程においては、第一の把持手段６ａにおける規制部材１０ａ−１及び１０ａ−２の切断前縁１２ａ−１及び１２ａ−２と第二の把持手段６ｂにおける規制部材１０ｂ−１及び１０ｂ−２の切断前縁１２ｂ−１及び１２ｂ−２とが、夫々、近接して位置する故に、接合端面４ａ及び４ｂから第一の枠部材２ａ及び第二の枠部材２ｂの下面及び上面を超えてバリが張り出すことは充分に防止乃至抑制される。所望ならば、第一の把持手段６ａにおける規制部材１０ａ−１及び１０ａ−２の切断前縁１２ａ−１及び１２ａ−２と第二の把持手段６ｂにおける規制部材１０ｂ−１及び１０ｂ−２の切断前縁１２ｂ−１及び１２ｂ−２とを相互に当接せしめることもできるが、かくした場合相互当接に起因して切断前縁１２ａ−１及び１２ａ−２並びに１２ｂ−１及び１２ｂ−２が比較的短期間の内に破損されてしまう虞がある。一方、第一の把持手段６ａにおける規制部材１０ａ−１及び１０ａ−２の切断前縁１２ａ−１及び１２ａ−２と第二の把持手段６ｂにおける規制部材１０ｂ−１及び１０ｂ−２の切断前縁１２ｂ−１及び１２ｂ−２とを０．０５乃至０．１５ｍｍ程度の微細な間隙をおいて近接せしめた場合、かかる微細な間隙ｙを通って目視され得るバリが張り出すことは実質上なく、バリの張り出しを充分に防止乃至抑制することができる。   Next, the pressing step illustrated in FIG. 6 is performed. In this pressing step, the first gripping means 6a and the second gripping step 6b are moved in a direction closer to each other, and the heated joining end face 4a and the second frame of the first frame member 2a are moved. The joining end surface 4b of the member 2b is pressed against each other with a required pressure, whereby the joining end surface 4a and the joining end surface 4b are joined together. At this time, the regulating members 10a-1 and 10a-2 are gradually retracted with respect to the gripping discs 8a-1 and 8a-2, and the regulating member 10b-1 with respect to the gripping discs 8b-1 and 8b-2. And 10b-2 are gradually retracted. In the pressing step shown in FIG. 6, the cutting front edges 12a-1 and 12a-2 of the regulating members 10a-1 and 10a-2 in the first holding means 6a and the regulating member 10b-1 in the second holding means 6b. 10b-2 and the cutting front edges 12b-1 and 12b-2 are located close to each other, so that the bottom surface and the top surface of the first frame member 2a and the second frame member 2b from the joint end surfaces 4a and 4b, respectively. It is sufficiently prevented or suppressed that the burr protrudes beyond the range. If desired, the cutting front edges 12a-1 and 12a-2 of the regulating members 10a-1 and 10a-2 in the first holding means 6a and the cutting of the regulating members 10b-1 and 10b-2 in the second holding means 6b The leading edges 12b-1 and 12b-2 can be brought into contact with each other, but in this case, the cutting leading edges 12a-1 and 12a-2 and 12b-1 and 12b-2 are caused by mutual contact. There is a risk of damage within a relatively short period of time. On the other hand, cutting front edges 12a-1 and 12a-2 of the regulating members 10a-1 and 10a-2 in the first gripping means 6a and cutting front edges of the regulating members 10b-1 and 10b-2 in the second gripping means 6b When 12b-1 and 12b-2 are brought close to each other with a fine gap of about 0.05 to 0.15 mm, there is substantially no burrs that can be seen through the fine gap y. Burrs can be sufficiently prevented or suppressed.

相互に接合された接合端面４ａ及び４ｂが所要温度まで冷却された後においては、第一の把持手段６ａによる第一の枠部材２ａの把持を解除すると共に、第二の把持手段6ｂによる第二の枠部材２ｂの把持を解除して、相互に接合された第一の枠部材２ａ及び第二の枠部材２ｂを取り出すことができる。   After the joining end surfaces 4a and 4b joined to each other are cooled to a required temperature, the first holding means 6a releases the first frame member 2a and the second holding means 6b releases the second. The first frame member 2a and the second frame member 2b joined to each other can be taken out by releasing the holding of the frame member 2b.

以上、本発明の接合方法の好適実施形態について添付図面を参照して詳細に説明したが、本発明は係る実施形態に限定されるものではなく、本発明の範囲から逸脱することなく種々の変形乃至修正が可能であることは多言を要しない。例えば、第一の枠部材２ａの接合端面４ａと第二の枠部材２ｂの接合端面４ｂとの接合のみについて説明したが、所望ならば、枠体を構成する4個の枠部材の所要接合端面の接合を実質上同時に遂行することもできる。   The preferred embodiments of the joining method of the present invention have been described in detail with reference to the accompanying drawings. However, the present invention is not limited to such embodiments, and various modifications can be made without departing from the scope of the present invention. It is not necessary to say that it can be modified. For example, only the joining of the joining end face 4a of the first frame member 2a and the joining end face 4b of the second frame member 2b has been described. If desired, the required joining end faces of four frame members constituting the frame body Can be performed substantially simultaneously.

２ａ：第一の枠部材
２ｂ：第二の枠部材
４ａ：第一の枠部材の接合端面
４ｂ：第二の枠部材の接合端面
６ａ：第一の把持手段
６ｂ：第二の把持手段
１０ａ−１及び１０ａ−２：（第一の）規制部材
１０ｂ−１及び１０ｂ−２：（第二の）規制部材
１２ａ−１及び１２ａ−２：切断前縁
１２ｂ−１及び１２ｂ−２：切断前縁
１４ａ−１及び１４ａ−２：後退面
１４ｂ−１及び１４ｂ−２：後退面
１８ａ−１及び１８ａ−２：当接面
１８ｂ−１及び１８ｂ−２：当接面
２０：加熱板
２２ａ及び２２ｂ：溶融バリ 2a: First frame member 2b: Second frame member 4a: Joining end surface of the first frame member 4b: Joining end surface of the second frame member 6a: First gripping means 6b: Second gripping means 10a- 1 and 10a-2: (first) regulating member 10b-1 and 10b-2: (second) regulating member 12a-1 and 12a-2: cutting leading edge 12b-1 and 12b-2: cutting leading edge 14a-1 and 14a-2: receding surfaces 14b-1 and 14b-2: receding surfaces 18a-1 and 18a-2: abutting surfaces 18b-1 and 18b-2: abutting surfaces 20: heating plates 22a and 22b: Melting burr

Claims (6)

合成樹脂製の第一の枠部材の接合端面と合成樹脂製の第二の枠部材の接合端面とを接合する接合方法にして、
該第一の枠部材の該接合端面を加熱板の片面に当接せしめると共に、該第二の枠部材の該接合端面を該加熱板の他面に当接せしめて、該第一の枠部材の該接合端面と該第二の枠部材の該接合端面とを加熱溶融する加熱工程と、
該加熱工程の後に、該第一の枠部材の加熱された該接合端面と該第二の枠部材の接合端面とを相互に押付けて接合する押付工程と、
を含む接合方法において、
更に、該加熱工程の後で且つ該押付工程の前に、該第一の枠部材の該接合端面を該加熱板の該片面から離隔せしめると共に、該第二の枠部材の該接合端面を該加熱板の該他面から離隔せしめ、次いで該第一の枠部材の所定表面に沿って第一の規制部材を該接合端面に向けて相対的に移動せしめて該接合端面を超えて突出せしめ、これによって該接合端面から該所定表面を超えて張り出した溶融バリを切除すると共に、該第二の枠部材の所定表面に沿って第二の規制部材を該接合端面に向けて相対的に移動せしめて該接合端面を超えて突出せしめ、これによって該接合端面から該所定表面を超えて張り出した溶融バリを切除するバリ切除工程を含む、ことを特徴とする接合方法。 In the joining method of joining the joining end face of the first frame member made of synthetic resin and the joining end face of the second frame member made of synthetic resin,
The joining frame of the first frame member is brought into contact with one surface of the heating plate, and the joining frame of the second frame member is brought into contact with the other surface of the heating plate, A heating step of heating and melting the joining end face of the second frame member and the joining end face of the second frame member;
After the heating step, a pressing step of pressing the bonded end surface of the first frame member and the bonded end surface of the second frame member against each other,
In a joining method including:
Further, after the heating step and before the pressing step, the joining end surface of the first frame member is separated from the one surface of the heating plate, and the joining end surface of the second frame member is Separating from the other surface of the heating plate, and then moving the first restricting member relative to the joining end surface along the predetermined surface of the first frame member to project beyond the joining end surface; As a result, the molten burrs projecting beyond the predetermined surface from the joint end surface are removed, and the second restricting member is moved relatively toward the joint end surface along the predetermined surface of the second frame member. And a burr cutting step of cutting out the molten burrs protruding beyond the predetermined surface from the bonding end surface by protruding beyond the bonding end surface. 該第一の規制部材は該第一の枠部材の該所定表面に沿って延在する鋭い切断前縁及び該切断前縁から後方に向かって該所定表面から離れる方向に傾斜して延びる後退面を有し、該第二の規制部材も該第二の枠部材の該所定表面に沿って延在する鋭い切断前縁及び該切断前縁から後方に向かって該所定表面から離れる方向に傾斜して延びる後退面を有する、請求項１記載の接合方法。   The first restricting member includes a sharp cutting front edge extending along the predetermined surface of the first frame member, and a receding surface extending obliquely away from the predetermined surface toward the rear from the cutting front edge. The second regulating member also has a sharp cutting front edge extending along the predetermined surface of the second frame member, and is inclined in a direction away from the predetermined surface rearward from the cutting front edge. The joining method according to claim 1, wherein the joining method has a receding surface extending in a straight line. 該第一の規制部材の該切断前縁は該第一の枠部材の該接合端面に平行に延在し、該第二の規制部材の該切断前縁も該第二の枠部材の該接合端面に平行に延在し、該押付工程においては、該第一の枠部材の加熱された該接合端面と該第二の枠部材の加熱された該接合端面とを相互に押付けるのに先立って、該第一の規制部材の該切断前縁と該第二の規制部材の該切断前縁とを近接乃至当接せしめ、これによって該押付工程において該第一の枠部材の該所定表面及び該第二の枠部材の該所定表面を超えて溶融バリが張り出すのを回避する、請求項２記載の接合方法。   The cutting front edge of the first restricting member extends parallel to the joining end face of the first frame member, and the cutting leading edge of the second restricting member is also joined to the second frame member. Extending in parallel with the end face, and in the pressing step, prior to pressing the heated joining end face of the first frame member and the heated joining end face of the second frame member together. The cutting front edge of the first restricting member and the cutting front edge of the second restricting member are brought close to or in contact with each other, whereby the predetermined surface of the first frame member and The joining method according to claim 2, wherein molten burrs are prevented from protruding beyond the predetermined surface of the second frame member. 該押付工程において、該第一の規制部材の該切断前縁と該第二の規制部材の該切断前縁とは０．０５乃至０．１５ｍｍの間隙をおいて近接せしめられる、請求項３記載の接合方法。   4. The pressing step, wherein the cutting front edge of the first regulating member and the cutting front edge of the second regulating member are brought close to each other with a gap of 0.05 to 0.15 mm. Joining method. 該第一の規制部材は該第一の枠部材の該接合端面と平行に延在し且つ該切断前縁よりも前方に位置する当接面を有し、該第二の規制部材も該第二の枠部材の該接合端面と平行に延在し且つ該切断前縁よりも前方に位置する当接面を有し、該押付工程において該第一の規制部材の該当接面と該第二の規制部材の該当接面とが当接せしめられることによって該第一の規制部材の該切断前縁と該第二の規制部材の該切断前縁とが近接した状態にせしめられる、請求項３又は４記載の接合方法。   The first restricting member has a contact surface extending in parallel with the joining end surface of the first frame member and positioned in front of the cutting front edge, and the second restricting member is also the first restricting member. A contact surface extending in parallel with the joint end surface of the second frame member and positioned in front of the cutting front edge; and the corresponding contact surface of the first restricting member and the second surface in the pressing step 4. The cutting front edge of the first regulating member and the cutting front edge of the second regulating member are brought close to each other by contacting the corresponding contact surface of the regulating member. Or the joining method of 4. 該第一の規制部材の該後退面は該第一の枠部材の該所定表面に対して２０乃至４０度の傾斜角度を有し、該第二の規制部材の該後退面も該第二の枠部材の該所定表面に対して２０乃至４０度の傾斜角度を有する、請求項２から５までのいずれかに記載の接合方法。   The receding surface of the first regulating member has an inclination angle of 20 to 40 degrees with respect to the predetermined surface of the first frame member, and the receding surface of the second regulating member is also the second The joining method according to any one of claims 2 to 5, wherein the joining member has an inclination angle of 20 to 40 degrees with respect to the predetermined surface of the frame member.
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