JP3112560B2 - High frequency welding equipment - Google Patents
High frequency welding equipmentInfo
- Publication number
- JP3112560B2 JP3112560B2 JP11585392A JP11585392A JP3112560B2 JP 3112560 B2 JP3112560 B2 JP 3112560B2 JP 11585392 A JP11585392 A JP 11585392A JP 11585392 A JP11585392 A JP 11585392A JP 3112560 B2 JP3112560 B2 JP 3112560B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- mounting member
- heating coil
- impedance
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 title claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 97
- 238000001514 detection method Methods 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- 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
- B29C65/44—Joining a heated non plastics element to a plastics element
- B29C65/46—Joining a heated non plastics element to a plastics element heated by induction
-
- 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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
- B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
-
- 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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
-
- 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
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
- B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
-
- 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
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
- B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
-
- 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
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
-
- 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
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- 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
- B29C66/8612—Ironing tool type
-
- 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
- B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
- B29L2031/108—Roofs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
- General Induction Heating (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建物等の陸屋根上等の
固定側の部材に取付られ表面に熱溶着性の接着剤が塗着
された金属製の取付部材と、この上に重ねられた防水シ
ート等のシート状物を高周波誘導加熱によって溶着する
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal mounting member which is mounted on a fixed member such as a roof of a building or the like and whose surface is coated with a heat-welding adhesive. The present invention relates to an apparatus for welding a sheet-like material such as a waterproof sheet by high-frequency induction heating.
【０００２】[0002]
【従来の技術】一般に、建物の陸屋根には防水施工がお
こなわれる。この防水施工として、この陸屋根の上に合
成樹脂製の防水シートを張り付けて防水をおこなうもの
がある。従来は、この防水シートは、この上に防水パッ
キンを配置し、この上から釘等を屋根に打ち付けること
により固定されていた。しかし、このような方法は、こ
の釘が貫通することによってこの防水シートに孔が形成
されるので、防水効果が劣る不具合があった。2. Description of the Related Art Generally, waterproof construction is performed on a flat roof of a building. As this waterproofing construction, there is a construction in which a waterproof sheet made of synthetic resin is stuck on the flat roof to perform waterproofing. Conventionally, this waterproof sheet has been fixed by disposing a waterproof packing thereon and driving nails or the like onto the roof from above. However, such a method has a problem in that the waterproof effect is inferior because a hole is formed in the waterproof sheet when the nail penetrates.
【０００３】このような不具合を解消するために、この
陸屋根の上に取付部材を釘等で固定するか、またこの取
付部材をあらかじめ陸屋根のコンクリートに埋設してお
き、この上に防水シートを重ねてこの防水シートと取付
部材とを接着する方法が開発されている。この取付部材
はたとえばステンレス鋼等の金属の円板状をなし、その
表面には熱溶着性の接着剤の層が被着されている。そし
て、この上に重ねられた防水シートの上からさらに高周
波加熱装置によって高周波を印加し、この取付部材を高
周波誘導加熱し、その熱で上記の熱溶着性の接着剤を溶
解してこの取付部材と防水シートを溶着する。In order to solve such a problem, a fixing member is fixed on the flat roof with nails or the like, or the mounting member is buried in concrete of the flat roof in advance, and a waterproof sheet is placed thereon. A method of bonding a lever waterproof sheet and a mounting member has been developed. The mounting member has a disk shape of a metal such as stainless steel, for example, and a surface of a heat-welding adhesive is applied to the surface thereof. Then, a high frequency is further applied by a high-frequency heating device from above the waterproof sheet laminated thereon, high-frequency induction heating is performed on the mounting member, and the heat dissolves the above-mentioned heat-welding adhesive. And a waterproof sheet.
【０００４】このような方法は、防水シートを貫通して
孔が形成されることがないので、防水効果が高いととも
に、この防水シートの表面に釘等が露出せず、外観が良
好である。しかし、このような方法は、陸屋根に取付ら
れた取付部材の上に防水シートを重ねると、この取付部
材の位置が分からなくなり、施工が困難になる等の不具
合がある。特に、最近では上記の取付部材をあらかじめ
陸屋根のコンクリートに埋設しておくことが多く、この
ような場合にはこの取付部材の表面と陸屋根のコンクリ
ート面とが略同一平面となるので、この取付部材の位置
が一層分からなくなる等の不具合がある。また、この高
周波加熱装置によって取付部材を加熱して溶着する場
合、この取付部材と防水シートとの溶着状態が外部から
判定できず、勘に頼って作業をしなければならない等の
不具合があった。[0004] In such a method, no holes are formed through the waterproof sheet, so that the waterproof effect is high and nails and the like are not exposed on the surface of the waterproof sheet, so that the appearance is good. However, such a method has a drawback in that if a waterproof sheet is superimposed on a mounting member mounted on a flat roof, the position of the mounting member cannot be determined, making construction difficult. In particular, recently, the mounting member is often buried in the concrete of the flat roof in advance. In such a case, the surface of the mounting member and the concrete surface of the flat roof are substantially flush with each other. There is a problem such that the position of is not understood further. Further, when the mounting member is heated and welded by the high-frequency heating device, the welding state between the mounting member and the waterproof sheet cannot be determined from the outside, and there is a problem that the work must be performed by relying on intuition. .
【０００５】[0005]
【発明が解決しようとする課題】本発明は以上の事情に
もとづいてなされたもので、上記のような作業をする場
合に、取付部材の位置やこの取付部材とシート状物との
溶着状態が正確に判別できる高周波溶着装置を提供する
ものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and when performing the above-described operations, the position of the mounting member and the state of welding between the mounting member and the sheet-like material are determined. An object of the present invention is to provide a high-frequency welding device that can be accurately distinguished.
【０００６】[0006]
【課題を解決するための手段】本発明は、加熱部と本体
部とを備え、加熱部には空芯の高周波加熱コイルが設け
られ、また本体部にはこの高周波加熱コイルに電力を供
給する高周波出力回路や高周波制御回路等が設けられて
いる。According to the present invention, there is provided a heating unit and a main unit, wherein the heating unit is provided with an air-core high-frequency heating coil, and the main unit supplies power to the high-frequency heating coil. A high-frequency output circuit, a high-frequency control circuit, and the like are provided.
【０００７】そして、この本体部には、この高周波加熱
コイルのインピーダンスの変化を検出する検出回路が設
けられている。また、上記の加熱部には表示部が設けら
れ、この検出回路で検出されたインピーダンスの変化を
表示するように構成されている。[0007] The main body is provided with a detection circuit for detecting a change in impedance of the high-frequency heating coil. In addition, the heating unit is provided with a display unit, which is configured to display a change in impedance detected by the detection circuit.
【０００８】本発明の実施例によれば、上記の検出回路
は上記の高周波加熱コイルのインピーダンスが所定の値
以上になったことを表示し、この高周波加熱コイルと取
付部材とが正確に一致しているか否かを表示するように
構成されている。According to an embodiment of the present invention, the detection circuit indicates that the impedance of the high-frequency heating coil has become equal to or greater than a predetermined value. Is displayed.
【０００９】また、本発明の実施例によれば、上記の検
出回路は、高周波加熱をおこなっている際に、この高周
波加熱コイルのインピーダンスの変化を検出し、このイ
ンピーダンスの増大を検出して上記の取付部材とシート
状物との溶着状態を検出し、その結果を上記の表示部に
表示するように構成されている。Further, according to the embodiment of the present invention, the above-described detection circuit detects a change in impedance of the high-frequency heating coil during high-frequency heating, and detects an increase in the impedance to detect the change in impedance. Is configured to detect the welding state between the mounting member and the sheet-like material, and display the result on the display unit.
【００１０】[0010]
【作用】上記の加熱部の高周波加熱コイルと取付部材と
が合致した場合には、この高周波加熱コイルのインピー
ダンスが極大になるので、このインピーダンスの変化か
ら、この加熱部が取付部材の上に正確に合致したことが
判別できる。また、高周波加熱を開始し、取付部材の温
度が上昇してゆくと、この高周波加熱コイルのインピー
ダンスが増大する。また、この取付部材が加熱され、熱
溶着性の接着剤が溶融すると、この取付部材と加熱部と
の間に介在されている接着剤の層およびシート状物の厚
さが減少し、この取付部材と高周波加熱コイルとの間隔
が減少し、この高周波加熱コイルのインピーダンスが増
大する。したがって、高周波加熱している際に、この高
周波加熱コイルのインピーダンスが急に増大することに
よって、この熱溶着が完了したことが判別できる。な
お、本発明の実施例では、上記の判別は検出回路で自動
的におこない、その結果を加熱部に設けた表示ランプ等
の表示部に表示する。When the high-frequency heating coil of the heating unit and the mounting member match, the impedance of the high-frequency heating coil is maximized. Can be determined. When the high-frequency heating is started and the temperature of the mounting member increases, the impedance of the high-frequency heating coil increases. Further, when the mounting member is heated and the heat-welding adhesive melts, the thickness of the adhesive layer and the sheet-like material interposed between the mounting member and the heating portion decreases, and The distance between the member and the high-frequency heating coil decreases, and the impedance of the high-frequency heating coil increases. Therefore, during the high-frequency heating, the impedance of the high-frequency heating coil suddenly increases, so that it is possible to determine that the heat welding is completed. In the embodiment of the present invention, the above determination is automatically performed by the detection circuit, and the result is displayed on a display unit such as a display lamp provided in the heating unit.
【００１１】[0011]
【実施例】以下、本発明の実施例を図を参照して説明す
る。図１にはこの高周波溶着装置の全体の構成を示す。
図中の１は本体部、２は加熱部である。この本体部１と
加熱部２は可撓性の電線３で接続されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the entire configuration of the high frequency welding apparatus.
In the figure, 1 is a main body, and 2 is a heating unit. The main body 1 and the heating unit 2 are connected by a flexible electric wire 3.
【００１２】また、４は固定側の部材、たとえば建物の
陸屋根であって、この陸屋根４のコンクリート内には取
付部材５が埋設されている。この取付部材５は、たとえ
ばステンレス鋼等の金属材料からなる円板状のもので、
アンカー６が突設され、図２に示すように所定の間隔で
コンクリート内に埋設されている。また、この取付部材
５の表面には熱溶着性の接着剤７の層があらかじめ被着
されている。そして、この陸屋根４の上には熱可塑性の
合成樹脂からなる防水シートが重ねられる。Reference numeral 4 denotes a member on the fixed side, for example, a flat roof of a building, and a mounting member 5 is embedded in the concrete of the flat roof 4. The mounting member 5 is a disk-shaped member made of a metal material such as stainless steel, for example.
Anchors 6 are protruded and buried in the concrete at predetermined intervals as shown in FIG. Further, a layer of a heat-sealable adhesive 7 is previously applied to the surface of the mounting member 5. Then, a waterproof sheet made of a thermoplastic synthetic resin is stacked on the flat roof 4.
【００１３】上記の加熱部２内には空芯の高周波加熱コ
イル９が内蔵され、この高周波加熱コイル９はたとえば
円形をなし、その径は上記の取付部材５の径より大きく
形成されている。そして、この加熱部２をこの防水シー
ト８の上に載置し、上記の高周波加熱コイル９と取付部
材５との位置を合致させ、この加熱部２を上から押圧す
るとともに、前記の本体部１からこの高周波加熱コイル
に高周波電流が供給される。したがって、上記の取付部
材５の内部には誘導電流が発生し、その抵抗によってこ
の取付部材５が加熱され、その表面の熱溶着性の接着剤
７が溶融し、この接着剤７によって防水シート８がこの
取付部材５に接着され、この防水シート８が固定され
る。An air-core high-frequency heating coil 9 is built in the heating section 2. The high-frequency heating coil 9 has, for example, a circular shape and a diameter larger than the diameter of the mounting member 5. Then, the heating unit 2 is placed on the waterproof sheet 8, the position of the high-frequency heating coil 9 is matched with the position of the mounting member 5, and the heating unit 2 is pressed from above. 1 supplies a high-frequency current to the high-frequency heating coil. Therefore, an induced current is generated inside the mounting member 5 and the resistance heats the mounting member 5 to melt the heat-sealable adhesive 7 on the surface thereof. Is adhered to the mounting member 5, and the waterproof sheet 8 is fixed.
【００１４】なお、この加熱部２には、ハンドル１８が
設けられ、また表示部１２が設けられている。また、こ
のハンドル１８には、この高周波加熱コイル９に供給さ
れる高周波電流のオン・オフをなす起動スイッチ１１が
取付られている。また、上記の表示部１２には、この実
施例の場合には図３に示すように、上記の高周波加熱コ
イル１３に電流が供給されている状態を表示する加熱表
示ランプ１３、この高周波加熱コイル９が上記の取付部
材５と合致しているか否かを表示する位置表示ランプ１
４、およびこの取付部材５と防水シート８との溶着が完
了したことを表示する溶着表示ランプ１５等が設けられ
ている。The heating section 2 is provided with a handle 18 and a display section 12. The handle 18 is provided with a start switch 11 for turning on / off a high-frequency current supplied to the high-frequency heating coil 9. In the case of this embodiment, as shown in FIG. 3, the display unit 12 has a heating display lamp 13 for displaying a state in which a current is supplied to the high-frequency heating coil 13; Position indicating lamp 1 for indicating whether or not 9 matches the above-mentioned mounting member 5
4, and a welding indication lamp 15 for indicating that welding of the mounting member 5 and the waterproof sheet 8 is completed is provided.
【００１５】次に、図４を参照して前記の本体部１の構
成を説明する。図中の２１は高周波出力回路であって、
この高周波出力回路２１は電源回路２２から電力の供給
を受け、所定の高周波電流を上記の加熱部２の高周波加
熱コイル９に供給する。この高周波出力回路２１は、た
とえば電圧共振形のインバータ回路であって、パワート
ランジスタによって電流をオン・オフし、所定の周波数
のパルス状の電流を上記の高周波加熱コイル９に供給す
るように構成されている。Next, the configuration of the main body 1 will be described with reference to FIG. Reference numeral 21 in the drawing denotes a high-frequency output circuit,
The high-frequency output circuit 21 receives power from a power supply circuit 22 and supplies a predetermined high-frequency current to the high-frequency heating coil 9 of the heating unit 2. The high-frequency output circuit 21 is, for example, a voltage resonance type inverter circuit, and is configured so that a current is turned on / off by a power transistor and a pulsed current having a predetermined frequency is supplied to the high-frequency heating coil 9. ing.
【００１６】また、この本体部１には、高周波制御回路
２３が設けられている。この高周波制御回路２３は、た
とえばこの本体部１内に設けられている設定回路２４か
らの信号にもとづいて、設定された電力の電流を上記の
高周波加熱コイル９に供給するように上記の高周波出力
回路２１を制御する。なお、この電力の制御は、上記の
高周波出力回路２１から出力されるパルス状の高周波の
パルス幅を変えて制御する。また、この高周波制御回路
２３には上記の起動スイッチ１１が接続され、この起動
スイッチ１１の操作に対応して上記の高周波加熱コイル
９に電流を供給する。The main body 1 is provided with a high-frequency control circuit 23. The high-frequency control circuit 23 supplies the set high-frequency current to the high-frequency heating coil 9 based on, for example, a signal from a setting circuit 24 provided in the main body 1. The circuit 21 is controlled. The power is controlled by changing the pulse width of the pulsed high frequency output from the high frequency output circuit 21. The start switch 11 is connected to the high frequency control circuit 23, and supplies a current to the high frequency heating coil 9 in accordance with the operation of the start switch 11.
【００１７】また、この本体部１には、検出回路２４が
設けられている。この検出回路２４は、上記の高周波出
力回路２１および高周波制御回路２３からの信号を受
け、上記の加熱部２内の高周波加熱コイル９のインピー
ダンスを検出する。そして、この検出回路２４では、こ
の検出したインピーダンスの値に対応して、上記の加熱
部２の表示部１２およびこの本体部１の表示部２５に必
要な表示をおこなうように構成されている。The main body 1 is provided with a detection circuit 24. The detection circuit 24 receives signals from the high-frequency output circuit 21 and the high-frequency control circuit 23 and detects the impedance of the high-frequency heating coil 9 in the heating unit 2. The detection circuit 24 is configured to perform necessary display on the display unit 12 of the heating unit 2 and the display unit 25 of the main body unit 1 in accordance with the detected impedance value.
【００１８】この実施例では、この検出回路２４は上記
のインピーダンスの変化から、高周波加熱部２の高周波
加熱コイル９が取付部材５の上に合致しているか否かを
検出する機能を有している。すなわち、上記の高周波加
熱コイル９に加熱用の電流が供給されていない場合で
も、この高周波加熱コイル９にわずか電流が供給され、
この高周波加熱コイル９のインピーダンスが検出されて
いる。そして、この高周波加熱コイル９は、空芯のコイ
ルであり、このコイルの近傍に取付部材５等の金属部材
が近接するとそのインピーダンスが増大する。そして、
この取付部材５がこの高周波加熱コイル９に完全に合致
した場合には、そのインピーダンスが極大になる。そし
て、この場合のインピーダンスの値はあらかじめ設定さ
れており、この高周波加熱コイル９のインピーダンスが
この値に達すると、この検出回路２４から信号が出力さ
れ、加熱部２の表示部１２の位置表示ランプ１４が点灯
する。したがって、作業者は、この位置表示ランプ１４
を見ながら、この加熱部２を移動させ、この位置表示ラ
ンプ１４が点灯することによって、その高周波加熱コイ
ル９が取付部材５上に合致したことが判別できる。In this embodiment, the detection circuit 24 has a function of detecting whether or not the high-frequency heating coil 9 of the high-frequency heating unit 2 matches the mounting member 5 from the change in the impedance. I have. That is, even when a current for heating is not supplied to the high-frequency heating coil 9, a slight current is supplied to the high-frequency heating coil 9,
The impedance of the high-frequency heating coil 9 is detected. The high-frequency heating coil 9 is an air-core coil, and its impedance increases when a metal member such as the mounting member 5 approaches the coil. And
When the mounting member 5 completely matches the high-frequency heating coil 9, the impedance becomes maximum. The value of the impedance in this case is set in advance. When the impedance of the high-frequency heating coil 9 reaches this value, a signal is output from the detection circuit 24 and the position display lamp of the display unit 12 of the heating unit 2 is output. 14 lights up. Therefore, the operator operates the position display lamp 14.
By moving the heating unit 2 while watching, the position indicating lamp 14 is turned on, so that it is possible to determine that the high-frequency heating coil 9 matches the mounting member 5.
【００１９】そして、この位置表示ランプ１４が点灯し
たら、起動スイッチ１１を操作し、加熱を開始する。な
お、この実施例では、上記の高周波加熱コイル９が取付
部材５に完全に合致していない場合には、起動スイッチ
１１を操作してもこの高周波加熱コイル９には電流が供
給されないように構成されている。When the position display lamp 14 is turned on, the start switch 11 is operated to start heating. In this embodiment, when the high-frequency heating coil 9 does not completely match the mounting member 5, even if the start switch 11 is operated, no current is supplied to the high-frequency heating coil 9. Have been.
【００２０】また、この実施例では、上記の検出回路２
４は加熱を開始して、取付部材５の熱溶着性接着剤７が
溶融してこの取付部材５と防水シート８との溶着が完了
したことを検出し、これを表示するように構成されてい
る。In this embodiment, the detection circuit 2
4 is configured to start heating, detect that the heat-welding adhesive 7 of the mounting member 5 has melted, and complete the welding of the mounting member 5 and the waterproof sheet 8, and display the detected result. I have.
【００２１】すなわち、上記のように加熱を開始する
と、この取付部材５の温度の上昇に伴って、この取付部
材５の内部の電気抵抗が増大し、この結果高周波加熱コ
イル９のインピーダンスが増大する。また、この温度上
昇によって接着剤７が溶融を開始すると、この加熱部２
によって押圧されている防水シート８はこの取付部材５
により密接し、加熱部２の高周波加熱コイル９と取付部
材５との間の間隔が少なくなる。したがって、この状態
ではこの高周波加熱コイル９のインピーダンスが増大す
る。That is, when the heating is started as described above, the electric resistance inside the mounting member 5 increases as the temperature of the mounting member 5 increases, and as a result, the impedance of the high-frequency heating coil 9 increases. . When the adhesive 7 starts melting due to the temperature rise, the heating unit 2
The waterproof sheet 8 pressed by the
Therefore, the distance between the high-frequency heating coil 9 of the heating unit 2 and the mounting member 5 is reduced. Therefore, in this state, the impedance of the high-frequency heating coil 9 increases.
【００２２】したがって、図５に示すように、加熱を開
始してからの高周波加熱コイル９のインピーダンスは、
溶着が完了する直前に急に増大する。上記の検出回路２
４は、このような加熱開始後のインピーダンスの上昇を
検出し、このようなインピーダンスの上昇のあった場合
には信号を出力し、上記の加熱部２の表示部１２の溶着
表示ランプ１５を点灯させる。したがって、作業者は、
この溶着表示ランプ１５の点灯により、溶着が完了した
ことを確認することができる。よって、過度の加熱を続
け、熱による接着剤の劣化等を生じるようなことが防止
され、また作業も能率的になる。Therefore, as shown in FIG. 5, the impedance of the high-frequency heating coil 9 after the start of heating is
It increases rapidly just before welding is completed. The above detection circuit 2
4 detects such an increase in impedance after the start of heating, outputs a signal when such an increase in impedance occurs, and turns on the welding display lamp 15 of the display unit 12 of the heating unit 2. Let it. Therefore, the worker
By the lighting of the welding display lamp 15, it can be confirmed that the welding is completed. Therefore, it is possible to prevent the adhesive from being excessively heated and causing the adhesive to deteriorate due to the heat, and the operation can be performed more efficiently.
【００２３】なお、本発明は上記の実施例には限定され
ない。たとえば、上記の検出回路２４は、単に高周波加
熱コイル９のインピーダンスの検出のみをおこない、こ
のインピーダンスの値を加熱部の表示部１２に直接表示
するようにしてもよい。このような場合は、作業者はこ
の表示を見ながら加熱部２を移動させ、このインピーダ
ンスの表示が極大になった場合にこの高周波加熱コイル
９が取付部材５と合致したことを判別することができ
る。The present invention is not limited to the above embodiment. For example, the detection circuit 24 may simply detect the impedance of the high-frequency heating coil 9 and directly display the impedance value on the display unit 12 of the heating unit. In such a case, the operator moves the heating unit 2 while watching the display, and when the display of the impedance becomes maximum, it is possible to determine that the high-frequency heating coil 9 matches the mounting member 5. it can.
【００２４】また、加熱を開始してからもこのインピー
ダンスの表示を確認し、このインピーダンスの値が急に
増大したことによって溶着が完了したことを確認するこ
とができる。Further, the display of the impedance can be confirmed even after the heating is started, and it can be confirmed that the welding has been completed due to the sudden increase in the value of the impedance.
【００２５】このような実施例のものは、構造が簡単で
ある。また、作業に多少の熟練を要するが、防水シート
８の厚さ、その他の条件の変化に柔軟に対応できる利点
がある。The structure of such an embodiment is simple. Although some skill is required for the operation, there is an advantage that the thickness of the waterproof sheet 8 and other conditions can be flexibly changed.
【００２６】さらに、本発明の装置は、上記のように建
物の陸屋根に防水シートを取り付けるものには限定され
ない。たとえば、床に取付部材を取付けておき、その上
にカーペット等を重ね、この上から加熱してこのカーペ
ットを熱溶着で固定する装置としても使用できる。ま
た、建物の内装壁、天井材等の取付、壁紙の張付け、そ
の他、固定側の部材に取付部材を介してシート状物を熱
溶着する場合一般に適用することができる。Further, the device of the present invention is not limited to the device in which the waterproof sheet is attached to the flat roof of the building as described above. For example, the present invention can also be used as a device in which a mounting member is mounted on a floor, a carpet or the like is stacked thereon, and heated from above to fix the carpet by heat welding. In addition, the present invention can be generally applied to the case where a sheet-like material is thermally welded to a fixed-side member via a mounting member, for example, for attaching an interior wall of a building, a ceiling material or the like, attaching wallpaper, or the like.
【００２７】[0027]
【発明の効果】上述の如く本発明は、加熱部の高周波加
熱コイルのインピーダンスを検出回路によって検出し、
このインピーダンスの変化に対応した表示をなすので、
このインピーダンスの表示によってこの加熱部の高周波
加熱コイルが取付部材に合致したこと、熱溶着が完了し
たこと等を確実に判別できる。As described above, according to the present invention, the impedance of the high-frequency heating coil of the heating unit is detected by the detection circuit.
Since the display corresponding to this change in impedance is made,
By displaying the impedance, it is possible to reliably determine that the high-frequency heating coil of the heating unit matches the mounting member, that the thermal welding has been completed, and the like.
【００２８】また、本発明の装置は、加熱部と本体部と
から構成され、この加熱部には高周波加熱コイルと表示
部を設け、他の機器は本体部内に収容したので、この加
熱部が小形、軽量になり、作業が容易となる。Further, the apparatus of the present invention comprises a heating section and a main body section. The heating section is provided with a high-frequency heating coil and a display section, and other equipment is accommodated in the main body section. Small size, light weight, and easy work.
【図１】本発明の実施例の装置全体の概略図FIG. 1 is a schematic view of an entire apparatus according to an embodiment of the present invention.
【図２】防水シートを重ねた陸屋根の一部の平面図FIG. 2 is a plan view of a part of a flat roof on which waterproof sheets are stacked.
【図３】加熱部の表示部の平面図FIG. 3 is a plan view of a display unit of the heating unit.
【図４】本体部の回路を示すブロック図FIG. 4 is a block diagram showing a circuit of a main unit.
【図５】加熱開始後のインピーダンス変化の例を示す線
図FIG. 5 is a diagram showing an example of an impedance change after the start of heating.
１…本体部 ２…加熱部 ５…取付部材 ７…熱溶着性接着剤 ８…防水シート １２…表示部 ２１…高周波出力回路 ２４…検出回路 DESCRIPTION OF SYMBOLS 1 ... Main body part 2 ... Heating part 5 ... Mounting member 7 ... Heat welding adhesive 8 ... Waterproof sheet 12 ... Display part 21 ... High frequency output circuit 24 ... Detection circuit
フロントページの続き (56)参考文献 特開 平３−72131（ＪＰ，Ａ) 特開 平４−95383（ＪＰ，Ａ) 特開 平３−183854（ＪＰ，Ａ) 特開 平４−254649（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H05B 6/10 381 E04B 1/66 B29C 65/36 Continuation of the front page (56) References JP-A-3-72131 (JP, A) JP-A-4-95383 (JP, A) JP-A-3-183854 (JP, A) JP-A-4-254649 (JP) , A) (58) Field surveyed (Int. Cl. 7 , DB name) H05B 6/10 381 E04B 1/66 B29C 65/36
Claims (3)
性接着剤が被着された金属製の取付部材と、この取付部
材の上に重ねられたシート状物とを熱溶着する装置であ
って、 加熱部と本体部とを備え、これら加熱部と本体部とは可
撓性の電線で接続されており、上記の加熱部には空芯の
高周波加熱コイルが設けられており、また、上記の本体
部には上記の高周波加熱コイルに高周波電流を供給する
高周波出力回路と、この高周波電流を制御する高周波制
御回路とが設けられており、また上記の加熱部には表示
部が設けられ、また、上記の本体部には上記の高周波加
熱コイルのインピーダンスを検出し、このインピーダン
スの変化を上記の表示部に表示させる検出回路が設けら
れていることを特徴とする高周波溶着装置。An apparatus for heat-welding a metal mounting member mounted on a fixed-side member and having a surface coated with a heat-welding adhesive, and a sheet-like material superposed on the mounting member. There is provided a heating unit and a main unit, the heating unit and the main unit are connected by a flexible electric wire, and the heating unit is provided with an air-core high-frequency heating coil, A high-frequency output circuit for supplying a high-frequency current to the high-frequency heating coil, a high-frequency control circuit for controlling the high-frequency current, and a display unit for the heating unit. And a detection circuit for detecting an impedance of the high-frequency heating coil and displaying a change in the impedance on the display unit.
イルのインピーダンスの変化から上記の加熱部の高周波
加熱コイルと前記の取付部材とが所定の位置関係にある
か否かを検出し、この結果を前記の表示部に表示するも
のであることを特徴とする請求項１の高周波溶着装置。2. The detecting circuit detects whether or not the high-frequency heating coil of the heating unit and the mounting member are in a predetermined positional relationship from a change in impedance of the high-frequency heating coil. 2. The high frequency welding apparatus according to claim 1, wherein a result is displayed on said display unit.
イルのインピーダンスの変化から前記の取付部材と前記
のシート状物の溶着状態を検出し、その結果を前記の表
示部に表示させるものであることを特徴とする請求項１
の高周波溶着装置。3. The detection circuit detects a welding state between the mounting member and the sheet-like material from a change in impedance of the high-frequency heating coil, and displays a result on the display unit. 2. The method according to claim 1, wherein
High frequency welding equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11585392A JP3112560B2 (en) | 1992-05-08 | 1992-05-08 | High frequency welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11585392A JP3112560B2 (en) | 1992-05-08 | 1992-05-08 | High frequency welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05315064A JPH05315064A (en) | 1993-11-26 |
| JP3112560B2 true JP3112560B2 (en) | 2000-11-27 |
Family
ID=14672763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11585392A Expired - Fee Related JP3112560B2 (en) | 1992-05-08 | 1992-05-08 | High frequency welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3112560B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8268300B2 (en) | 2003-08-19 | 2012-09-18 | Riken | Material for aneurysm curing |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2325982B (en) | 1998-05-20 | 1999-08-04 | Valro Mfg Ltd | Portable induction heater |
| US7141768B2 (en) | 2000-04-28 | 2006-11-28 | Nexicor, Llc | Fastening device |
| JP3787532B2 (en) * | 2002-04-25 | 2006-06-21 | アーキヤマデ株式会社 | Electromagnetic induction heating device for construction waterproof sheet construction |
| JP2005019374A (en) * | 2003-05-30 | 2005-01-20 | Tokyo Denki Univ | Portable electromagnetic induction heating device |
| JP2005307737A (en) * | 2004-03-23 | 2005-11-04 | Mitsubishi Kagaku Sanshi Corp | Electromagnetic induction heating device for flooring construction |
| JP2006299588A (en) * | 2005-04-19 | 2006-11-02 | Mitsubishi Kagaku Sanshi Corp | Electromagnetic induction heating device for interior construction |
| JP5622382B2 (en) * | 2009-11-19 | 2014-11-12 | 株式会社ケー・エフ・シー | Waterproof sheet welding quality control device |
| DE102012101380A1 (en) | 2012-02-21 | 2013-08-22 | Sfs Intec Holding Ag | Device for bonding or welding a roofing membrane |
| CN104584683B (en) * | 2012-08-27 | 2016-08-17 | 东芝三菱电机产业系统株式会社 | The control device of induction heating apparatus |
| JPWO2014142169A1 (en) * | 2013-03-14 | 2017-02-16 | 株式会社ブラウニー | Electromagnetic induction heating device, its power supply side unit and heating head |
| JP6448964B2 (en) * | 2014-09-22 | 2019-01-09 | ロンシール工業株式会社 | Induction heating device and construction structure of building and civil engineering sheet using the same |
| JP6501243B2 (en) * | 2014-09-22 | 2019-04-17 | ロンシール工業株式会社 | Electromagnetic induction heating device for construction and civil engineering and fixing structure of seat for construction and civil engineering |
| JP6506123B2 (en) * | 2015-07-13 | 2019-04-24 | 積水化学工業株式会社 | Seat waterproofing method |
-
1992
- 1992-05-08 JP JP11585392A patent/JP3112560B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8268300B2 (en) | 2003-08-19 | 2012-09-18 | Riken | Material for aneurysm curing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05315064A (en) | 1993-11-26 |
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