JP2005254559A - Hot plate welded structure of resin tank and resin component - Google Patents
Hot plate welded structure of resin tank and resin component Download PDFInfo
- Publication number
- JP2005254559A JP2005254559A JP2004067717A JP2004067717A JP2005254559A JP 2005254559 A JP2005254559 A JP 2005254559A JP 2004067717 A JP2004067717 A JP 2004067717A JP 2004067717 A JP2004067717 A JP 2004067717A JP 2005254559 A JP2005254559 A JP 2005254559A
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- hot plate
- resin
- tank
- welding
- 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.)
- Granted
Links
Images
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
- 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
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
- B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
- B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
- B29C66/53247—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers said spouts comprising flanges
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
- B29C65/7814—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of inter-cooperating positioning features, e.g. tenons and mortises
-
- 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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
- B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
- B29C65/7829—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being integral with at least one of the parts 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/82—Testing the joint
-
- 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
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/128—Stepped joint cross-sections
- B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
- B29C66/12821—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap joint-segments
-
- 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
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/128—Stepped joint cross-sections
- B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
-
- 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
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/128—Stepped joint cross-sections
- B29C66/1286—Stepped joint cross-sections comprising at least one bevelled joint-segment
-
- 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
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
-
- 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
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
-
- 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
- B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
- B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
- B29C66/30221—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being point-like
-
- 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
- B29C66/322—Providing cavities in the joined article to collect the burr
-
- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
- B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
-
- 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
- B29C65/82—Testing the joint
- B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
-
- 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
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7172—Fuel tanks, jerry cans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
本発明は、樹脂タンクの所定位置に樹脂部品を熱板溶接するための樹脂タンクと樹脂部品との熱板溶接構造に関する。 The present invention relates to a hot plate welding structure of a resin tank and a resin component for hot plate welding a resin component to a predetermined position of a resin tank.
樹脂タンク、例えば、自動車に搭載される樹脂製のフューエルタンクでは、一般にタンク本体がブロー成形によって製造されるため、フューエルタンクの構成部品であるインレットホース結合部やブリーザホース結合部等の樹脂部品をタンク本体に一体に成形することが難しい。このため、これらの樹脂部品はタンク本体とは別個独立に樹脂成形され、成形後に当該樹脂部品を熱板溶接によってタンク本体の所定位置に取り付けている。 In resin tanks, for example, resin fuel tanks mounted on automobiles, since the tank body is generally manufactured by blow molding, resin parts such as inlet hose coupling parts and breather hose coupling parts, which are constituent parts of the fuel tank, are used. It is difficult to form the tank body in one piece. For this reason, these resin parts are resin-molded independently from the tank body, and after molding, the resin parts are attached to predetermined positions of the tank body by hot plate welding.
以下、図4及び図5を用いて、従来のフューエルタンクとインレットホース結合部との熱板溶接について説明する。図4には、フューエルタンク100の開口部102及びインレットホース結合部104が熱板溶接される前の状態で示されている。この図に示されるように、開口部102は溶着部102A及び取付座102Bを有しており、又インレットホース結合部104は大径の基部104A及びパイプ状かつ小径の結合部104Bを備えている。
Hereinafter, a conventional hot plate welding between the fuel tank and the inlet hose joint will be described with reference to FIGS. 4 and 5. In FIG. 4, the opening 102 of the
図5(A)、(B)には、熱板溶接前後の要部の状態が拡大して示されている。図5(A)に示される二点鎖線部分が、図示しない熱板によって溶融される初期溶融代106(厚さt1)である。また、斜線部分は、図示しない熱板によって実際に溶融されたときの熱影響部108(厚さt2)である。そして、熱板を除去した後に、図5(A)に示される状態からインレットホース結合部104の基部104Aとフューエルタンク100の開口部102とを所定の加圧力で相互に押付けることにより、インレットホース結合部104がフューエルタンク100の開口部102の溶着部102A(図4参照)に溶着される。この場合、図5(B)の斜線部分が溶着後の残存溶融代110(厚さt3)であり、図5(A)の上下の熱影響部108の厚さt2の合計から図5(B)の残存溶融代110(厚さt3)を差し引いた寸法(a)がトータルの押し込み量となる。
上記従来の熱板溶接による場合、初期溶融代106(t1)、残存溶融代110(t3)、押し込み量(a)の管理が非常に重要になるが、インレットホース結合部104等の部品精度があまり良くなかったとか、溶着時の部品の保持力が不十分であったとか、溶着部の剛性が不足していた等の様々な要因により、初期溶融代不足(加熱不足)、残存溶融代不足、押し込み量不足等の不具合が発生する可能性がある。しかし、従来では、初期溶融代106(t1)、残存溶融代110(t3)、押し込み量(a)は、溶接設備側での位置、温度、時間、押し込み力等の管理に頼るしかなく、溶着後の品質確認は別途破壊検査を実施して確認していた。 In the case of the above-described conventional hot plate welding, it is very important to manage the initial melting allowance 106 (t1), the remaining melting allowance 110 (t3), and the push-in amount (a). Due to various factors, such as not so good, insufficient holding power of parts at the time of welding, or insufficient rigidity of the welded part, insufficient initial melting allowance (insufficient heating), insufficient residual melting allowance There is a possibility that problems such as insufficient push-in amount occur. However, in the past, the initial melting allowance 106 (t1), the remaining melt allowance 110 (t3), and the push-in amount (a) have to rely on the management of the position, temperature, time, push-in force, etc. on the welding equipment side. Later quality confirmation was confirmed by conducting a separate destructive inspection.
上記に対し、溶着時にできる溶着バリ・溶着ビード112(図5(B)参照)が全周に存在することを確認することにより、溶着後の品質を管理する方法もあるが、溶着バリ・溶着ビードがインレットホース結合部104及びフューエルタンク100の開口部102を熱板に押付けた際にできたものなのか、それとも加圧時に押し出されてできたものなのかの判断が難しい。また、初期にできたバリで溶着バリ・溶着ビードが隠れてしまうこともあるので、この方法はあまり確実ではなく、推奨できない。
In contrast to the above, there is a method of controlling the quality after welding by confirming that there are welding burrs / welding beads 112 (see FIG. 5B) formed at the time of welding. It is difficult to determine whether the bead is formed when the inlet
本発明は上記事実を考慮し、破壊検査等の大掛かりな検査をしなくても、初期溶融代、残存溶融代、及び押し込み量の管理を適切かつ確実に行うことができる樹脂タンクと樹脂部品との熱板溶接構造を得ることが目的である。 In view of the above facts, the present invention provides a resin tank and a resin component that can appropriately and reliably manage the initial melting allowance, the remaining melting allowance, and the push-in amount without performing a large-scale inspection such as a destructive inspection. It is an object to obtain a hot plate welded structure.
請求項1記載の本発明に係る樹脂タンクと樹脂部品との熱板溶接構造は、樹脂タンクの所定位置に樹脂部品を熱板溶接するための樹脂タンクと樹脂部品との熱板溶接構造であって、樹脂タンク及び樹脂部品の少なくとも一方に、熱板での加熱溶融時の初期溶融代に対応して突出高さが定められた第1突起部と、この第1突起部と同一方向へ突出されると共に第1突起部よりも突出高さが低くかつ溶着時の残存溶融代に対応して突出高さが定められた第2突起部と、を備えた溶着品質判定手段を一体に設けた、ことを特徴としている。 The hot plate welding structure between the resin tank and the resin component according to the first aspect of the present invention is a hot plate welding structure between the resin tank and the resin component for hot plate welding the resin component to a predetermined position of the resin tank. In addition, at least one of the resin tank and the resin component has a first protrusion having a protrusion height determined corresponding to the initial melting allowance at the time of heating and melting with a hot plate, and protrudes in the same direction as the first protrusion. And a second projection portion having a projection height lower than that of the first projection portion and a projection height determined in accordance with the remaining melting allowance at the time of welding. It is characterized by that.
請求項2記載の本発明に係る樹脂タンクと樹脂部品との熱板溶接構造は、樹脂タンクの所定位置に樹脂部品を熱板溶接するための樹脂タンクと樹脂部品との熱板溶接構造であって、樹脂タンクにおける溶着部の周囲に一体に設けられ、熱板での加熱溶融時の初期溶融代に対応して突出高さが定められた第1突起部と、この第1突起部と同一方向へ突出されると共に第1突起部よりも突出高さが低くかつ溶着時の残存溶融代に対応して突出高さが定められた第2突起部と、を備えたタンク側溶着品質判定手段と、樹脂部品における溶着部の周囲に一体に設けられると共に前記タンク側溶着品質判定手段と周方向にラップしない位置に配置され、熱板での加熱溶融時の初期溶融代に対応して突出高さが定められた第1突起部と、この第1突起部と同一方向へ突出されると共に第1突起部よりも突出高さが低くかつ溶着時の残存溶融代に対応して突出高さが定められた第2突起部と、を備えた部品側溶着品質判定手段と、を有することを特徴としている。 The hot plate welding structure between the resin tank and the resin component according to the present invention as defined in claim 2 is a hot plate welding structure between the resin tank and the resin component for hot plate welding the resin component to a predetermined position of the resin tank. A first projection provided integrally around the welded portion of the resin tank and having a projection height determined in accordance with the initial melting allowance at the time of heating and melting with a hot plate, and the same as the first projection And a second protrusion having a protrusion height lower than that of the first protrusion and having a protrusion height determined in accordance with the remaining melting allowance at the time of welding. And is provided integrally around the welded portion of the resin part and is disposed at a position not wrapped in the circumferential direction with the tank-side weld quality judging means, and has a protruding height corresponding to the initial melting allowance at the time of heating and melting with a hot plate. A first protrusion having a predetermined length, and the first protrusion A part-side weld quality judgment comprising: a second protrusion that protrudes in one direction and has a protrusion height lower than that of the first protrusion and a protrusion height determined in accordance with the remaining melting allowance at the time of welding. And means.
請求項3記載の本発明に係る樹脂タンクと樹脂部品との熱板溶接構造は、請求項1又は請求項2記載の発明において、前記第1突起部は溶着部の外縁に対して離間して配置されており、当該第1突起部と溶着部の外縁との間には所定幅の溝が形成されている、ことを特徴としている。 According to a third aspect of the present invention, there is provided the hot plate welded structure between the resin tank and the resin component according to the first or second aspect, wherein the first protrusion is separated from the outer edge of the welded portion. A groove having a predetermined width is formed between the first protrusion and the outer edge of the welded portion.
請求項4記載の本発明に係る樹脂タンクと樹脂部品との熱板溶接構造は、請求項1乃至請求項3のいずれかに記載の発明において、前記第1突起部及び前記第2突起部は一体かつ略階段形状に形成されており、当該第1突起部の端面には熱板での加熱溶融時に溶融して消失する第1識別部が形成されていると共に、当該第2突起部の端面には熱板での加熱溶融時には溶融しない第2識別部が形成されている、ことを特徴としている。 According to a fourth aspect of the present invention, there is provided the hot plate welded structure between the resin tank and the resin component according to any one of the first to third aspects, wherein the first protrusion and the second protrusion are The first protrusion is integrally formed in a substantially staircase shape, and a first identification part that melts and disappears when heated and melted by a hot plate is formed on the end face of the first protrusion, and the end face of the second protrusion Is characterized in that a second discriminating portion that does not melt when heated and melted by a hot plate is formed.
請求項1記載の本発明によれば、樹脂タンクの所定位置に樹脂部品を熱板溶着するには、まず、樹脂タンクの溶着部と樹脂部品の溶着部とを熱板にそれぞれ押し付け、双方の溶着部をそれぞれ溶融させる。次に、熱板除去後に、溶融状態にある樹脂タンクと樹脂部品との溶着部同士を所定の押し込み力で相互に押し付ける。これにより、双方の溶着部同士が密着して一体化される。その後、溶着部が硬化すれば、樹脂タンクと樹脂部品との熱板溶接が完了する。 According to the first aspect of the present invention, in order to weld the resin part to the predetermined position of the resin tank, first, the welded part of the resin tank and the welded part of the resin part are respectively pressed against the hot plate, Each welded part is melted. Next, after the hot plate is removed, the welded portions of the molten resin tank and the resin parts are pressed against each other with a predetermined pressing force. Thereby, both welding parts closely_contact | adhere and are integrated. Thereafter, when the welded portion is cured, the hot plate welding between the resin tank and the resin component is completed.
ここで、本発明では、樹脂タンク及び樹脂部品の少なくとも一方に溶着品質判定手段を一体に設けたので、以下の如くして、溶着部の溶接品質を判定するすることができる。 Here, in the present invention, since the welding quality determining means is integrally provided in at least one of the resin tank and the resin component, the welding quality of the welded portion can be determined as follows.
まず、第1突起部は初期溶融代に対応して設けられているため、熱板での加熱溶融時に第1突起部は必ず溶融していなればならない。これが第1条件となる。従って、仮にこの第1突起部が溶融していない場合には、「加熱溶融時に溶着部の加熱不足が生じた」と判定することができる。 First, since the first protrusions are provided corresponding to the initial melting allowance, the first protrusions must be melted at the time of heating and melting with a hot plate. This is the first condition. Therefore, if the first protrusion is not melted, it can be determined that “the heating of the welded part has been insufficient during heating and melting”.
次に、第1突起部と同一方向へ突出されかつ第1突起部よりも突出高さが低く設定された第2突起部は残存溶融代に対応して設けられているため、熱板での加熱溶融時に第2突起部は溶融してはならない。これが第2条件となる。従って、仮にこの第2突起部が溶融している場合には、「熱板での加熱溶融時に溶着部を加熱し過ぎた」か又は「加熱時の押し込み力が強過ぎた」と判定することができる。 Next, since the second protrusion that protrudes in the same direction as the first protrusion and has a protrusion height lower than the first protrusion is provided corresponding to the remaining melting allowance, The second protrusion must not melt during heating and melting. This is the second condition. Therefore, if the second protrusion is melted, it is determined that "the welded part has been heated too much when heated and melted on the hot plate" or "the pushing force during heating is too strong". Can do.
さらに、溶着後に溶融後の第1突起部の端面の相対位置を目視又はゲージ等の測定器具を使って測定し、当該測定値が予め設定した目標管理値(許容管理値)に入っているかどうかを確認する。確認した結果、実測値が目標管理値以内にあれば、「溶着時の押し込み量は適正であった」と判定することができる。逆に、実測値が目標管理値以内になければ、「溶着時の押し込み力が不足していた」か又は「溶着時の押し込み力が強過ぎた」と判定することができる。 Furthermore, after welding, measure the relative position of the end face of the first projection after melting visually or using a measuring instrument such as a gauge, and whether the measured value falls within the preset target management value (allowable management value). Confirm. As a result of the confirmation, if the actual measurement value is within the target management value, it can be determined that “the amount of pushing during welding was appropriate”. Conversely, if the measured value is not within the target management value, it can be determined that “the pushing force at the time of welding was insufficient” or “the pushing force at the time of welding was too strong”.
上記より、本発明によれば、熱板溶接時の良否を判定する際の重要なファクターである初期溶融代、残存溶融代、及び押し込み量のすべてを簡便な方法で確実に確認することができる。 As described above, according to the present invention, all of the initial melting allowance, the remaining melting allowance, and the indentation amount, which are important factors in determining the quality during hot plate welding, can be reliably confirmed by a simple method. .
請求項2記載の本発明によれば、樹脂タンクの所定位置に樹脂部品を熱板溶着するには、まず、樹脂タンクの溶着部と樹脂部品の溶着部とを熱板にそれぞれ押し付け、双方の溶着部をそれぞれ溶融させる。次に、熱板除去後に、溶融状態にある樹脂タンクと樹脂部品との溶着部同士を所定の押し込み力で相互に押し付ける。これにより、双方の溶着部同士が密着して一体化される。その後、溶着部が硬化すれば、樹脂タンクと樹脂部品との熱板溶接が完了する。 According to the second aspect of the present invention, in order to weld the resin part to the predetermined position of the resin tank, first, the welded part of the resin tank and the welded part of the resin part are respectively pressed against the hot plate, Each welded part is melted. Next, after the hot plate is removed, the welded portions of the molten resin tank and the resin parts are pressed against each other with a predetermined pressing force. Thereby, both welding parts closely_contact | adhere and are integrated. Thereafter, when the welded portion is cured, the hot plate welding between the resin tank and the resin component is completed.
ここで、本発明では、樹脂タンクにおける溶着部の周囲にタンク側溶着品質判定手段を一体に設けると共に、樹脂部品における溶着部の周囲でタンク側溶着品質判定手段と周方向にラップしない位置に部品側品質判定手段を一体に設けたので、以下の如くして、溶着部の溶接品質を判定するすることができる。 Here, in the present invention, the tank-side welding quality determining means is integrally provided around the welded portion in the resin tank, and the part is not wrapped around the welded part in the resin part in the circumferential direction with the tank-side welded quality judging means. Since the side quality determination means is provided integrally, the weld quality of the welded portion can be determined as follows.
まず、タンク側溶着品質判定手段の第1突起部及び部品側溶着品質判定手段の第1突起部は初期溶融代に対応して設けられているため、熱板での加熱溶融時に双方の第1突起部は必ず溶融していなればならない。これが第1条件となる。従って、仮にこの第1突起部が溶融していない場合には、「加熱溶融時に溶着部の加熱不足が生じた」と判定することができる。 First, since the first protrusion of the tank-side welding quality determining means and the first protrusion of the component-side welding quality determining means are provided corresponding to the initial melting allowance, both the first protrusions at the time of heating and melting on the hot platen are provided. The protrusion must be melted. This is the first condition. Therefore, if the first protrusion is not melted, it can be determined that “the heating of the welded part has been insufficient during heating and melting”.
次に、第1突起部と同一方向へ突出されかつ第1突起部よりも突出高さが低く設定された第2突起部は残存溶融代に対応して設けられているため、熱板での加熱溶融時に第2突起部は溶融してはならない。これが第2条件となる。従って、仮にこの第2突起部が溶融している場合には、「熱板での加熱溶融時に溶着部を加熱し過ぎた」か又は「加熱時の押し込み力が強過ぎた」と判定することができる。 Next, since the second protrusion that protrudes in the same direction as the first protrusion and has a protrusion height lower than the first protrusion is provided corresponding to the remaining melting allowance, The second protrusion must not melt during heating and melting. This is the second condition. Therefore, if the second protrusion is melted, it is determined that "the welded part has been heated too much when heated and melted on the hot plate" or "the pushing force during heating is too strong". Can do.
さらに、溶着後にタンク側溶着品質判定手段及び部品側溶着品質判定手段の溶融後の第1突起部の端面の相対位置を目視又はゲージ等の測定器具を使って測定し、当該測定値が予め設定した目標管理値(許容管理値)に入っているかどうかを確認する。確認した結果、実測値が目標管理値以内にあれば、「溶着時の押し込み量は適正であった」と判定することができる。逆に、実測値が目標管理値以内になければ、「溶着時の押し込み力が不足していた」か又は「溶着時の押し込み力が強過ぎた」と判定することができる。 Further, after welding, the relative position of the end face of the first projection after melting of the tank side welding quality judgment unit and the part side welding quality judgment unit is measured visually or using a measuring instrument such as a gauge, and the measured value is set in advance. Whether the target management value (allowable management value) is within the specified range. As a result of the confirmation, if the actual measurement value is within the target management value, it can be determined that “the amount of pushing during welding was appropriate”. Conversely, if the measured value is not within the target management value, it can be determined that “the pushing force at the time of welding was insufficient” or “the pushing force at the time of welding was too strong”.
上記より、本発明によれば、熱板溶接時の良否を判定する際の重要なファクターである初期溶融代、残存溶融代、及び押し込み量のすべてを簡便な方法で確実に確認することができる。 As described above, according to the present invention, all of the initial melting allowance, the remaining melting allowance, and the indentation amount, which are important factors in determining the quality during hot plate welding, can be reliably confirmed by a simple method. .
請求項3記載の本発明によれば、第1突起部は溶着部の外縁に対して離間して配置されており、当該第1突起部と溶着部の外縁との間には所定幅の溝が形成されているため、溶着時の溶着バリ・溶着ビードを溝へ逃がすことができる。このため、初期溶融代を規定する第1突起部の機能が阻害されるのを防止することができる。つまり、仮に溝を設定せず第1突起部を溶着部に隣接して設けた場合、熱板での加熱溶融時に溶着部に生じる溶着バリ・溶着ビードが第1突起部にそのまま雪崩れ込み、当該第1突起部を溶かして初期溶融代が判別できなくなる可能性がある。しかし、本発明のように溝を設けておけば、溶着部の溶着バリ・溶着ビードによって第1突起部に悪影響が及ぶのを未然に防止することができる。 According to the third aspect of the present invention, the first protrusion is disposed away from the outer edge of the welded portion, and a groove having a predetermined width is provided between the first protrusion and the outer edge of the welded portion. Therefore, the welding burr and welding bead at the time of welding can be released to the groove. For this reason, it can prevent that the function of the 1st projection part which prescribes | regulates an initial fusion allowance is inhibited. In other words, if the first protrusion is provided adjacent to the welded part without setting a groove, the welding burr / weld bead generated in the welded part at the time of heating and melting with the hot plate is crushed into the first protrusion as it is, There is a possibility that the initial melting allowance cannot be determined by melting the first protrusion. However, if the groove is provided as in the present invention, it is possible to prevent the first protrusion from being adversely affected by the welding burr / welding bead of the welding portion.
請求項4記載の本発明によれば、第1突起部及び第2突起部は一体かつ略階段形状に形成されており、当該第1突起部の端面には熱板での加熱溶融時に溶融して消失する第1識別部が形成されていると共に、当該第2突起部の端面には熱板での加熱溶融時には溶融しない第2識別部が形成されているので、第1識別部が消失していれば、第1突起部は熱板での加熱溶融によって溶融したことが簡単に判る。また、溶着後に第2識別部が溶けているか否かを視認すれば、加熱し過ぎであったか否かが簡単に判る。 According to the fourth aspect of the present invention, the first protrusion and the second protrusion are integrally formed in a substantially step shape, and the end surface of the first protrusion is melted at the time of heating and melting with a hot plate. The first identifying portion disappears and the second identifying portion is formed on the end surface of the second projection portion and does not melt when heated and melted by the hot plate. If it is, it can be easily understood that the first protrusion is melted by heating and melting on the hot plate. In addition, if it is visually confirmed whether or not the second identification portion is melted after welding, it can be easily determined whether or not the second identification portion has been heated too much.
以上説明したように、請求項1記載の本発明に係る樹脂タンクと樹脂部品との熱板溶接構造は、樹脂タンク及び樹脂部品の少なくとも一方に、熱板での加熱溶融時の初期溶融代に対応して突出高さが定められた第1突起部と、この第1突起部と同一方向へ突出されると共に第1突起部よりも突出高さが低くかつ溶着時の残存溶融代に対応して突出高さが定められた第2突起部と、を備えた溶着品質判定手段を一体に設けたので、破壊検査等の大掛かりな検査をしなくても、初期溶融代、残存溶融代、及び押し込み量の管理を適切かつ確実に行うことができるという優れた効果を有する。
As described above, the hot plate welded structure of the resin tank and the resin component according to the present invention according to
請求項2記載の本発明に係る樹脂タンクと樹脂部品との熱板溶接構造は、樹脂タンクにおける溶着部の周囲に一体に設けられ、熱板での加熱溶融時の初期溶融代に対応して突出高さが定められた第1突起部と、この第1突起部と同一方向へ突出されると共に第1突起部よりも突出高さが低くかつ溶着時の残存溶融代に対応して突出高さが定められた第2突起部と、を備えたタンク側溶着品質判定手段と、樹脂部品における溶着部の周囲に一体に設けられると共に前記タンク側溶着品質判定手段と周方向にラップしない位置に配置され、熱板での加熱溶融時の初期溶融代に対応して突出高さが定められた第1突起部と、この第1突起部と同一方向へ突出されると共に第1突起部よりも突出高さが低くかつ溶着時の残存溶融代に対応して突出高さが定められた第2突起部と、を備えた部品側溶着品質判定手段と、を有するので、破壊検査等の大掛かりな検査をしなくても、初期溶融代、残存溶融代、及び押し込み量の管理を適切かつ確実に行うことができるという優れた効果を有する。 The hot plate welding structure of the resin tank and the resin component according to the present invention as set forth in claim 2 is provided integrally around the welded portion of the resin tank, and corresponds to the initial melting allowance at the time of heat melting with the hot plate. A first protrusion having a defined protrusion height, and a protrusion height that protrudes in the same direction as the first protrusion, is lower than the first protrusion, and corresponds to the remaining melting allowance during welding. A tank-side weld quality determining means provided with a second protrusion having a predetermined length, and a tank-side weld quality determining means that is integrally provided around the welded portion of the resin component and that does not wrap in the circumferential direction with the tank-side weld quality determining means. A first protrusion having a protrusion height determined in correspondence with an initial melting allowance at the time of heat-melting with a hot plate, and protruding in the same direction as the first protrusion and being more than the first protrusion The protrusion height is low and corresponds to the remaining melting allowance during welding. Since there is a part-side weld quality judgment means having a predetermined second protrusion, management of the initial melting allowance, residual melting allowance, and indentation amount is possible without performing extensive inspection such as destructive inspection. It has the outstanding effect that it can perform appropriately and reliably.
請求項3記載の本発明に係る樹脂タンクと樹脂部品との熱板溶接構造は、請求項1又は請求項2記載の発明において、第1突起部は溶着部の外縁に対して離間して配置されており、当該第1突起部と溶着部の外縁との間には所定幅の溝が形成されているため、溶着時の溶着バリ・溶着ビードを溝へ逃がすことができ、その結果、溶着部の溶着品質の判定に対する信頼性を向上させることができるという優れた効果を有する。 According to a third aspect of the present invention, there is provided the hot plate welded structure between the resin tank and the resin component according to the first or second aspect, wherein the first protrusion is disposed away from the outer edge of the welded portion. Since a groove having a predetermined width is formed between the first protrusion and the outer edge of the welded portion, the welding burr / weld bead at the time of welding can be released to the groove. It has the outstanding effect that the reliability with respect to the determination of the welding quality of a part can be improved.
請求項4記載の本発明に係る樹脂タンクと樹脂部品との熱板溶接構造は、請求項1乃至請求項3のいずれかに記載の発明において、第1突起部及び第2突起部は一体かつ略階段形状に形成されており、当該第1突起部の端面には熱板での加熱溶融時に溶融して消失する第1識別部が形成されていると共に、当該第2突起部の端面には熱板での加熱溶融時には溶融しない第2識別部が形成されているので、前述した第1条件及び第2条件の適否を簡単に判断することができるという優れた効果を有する。 According to a fourth aspect of the present invention, there is provided the hot plate welded structure between the resin tank and the resin component according to any one of the first to third aspects, wherein the first protrusion and the second protrusion are integrated with each other. It is formed in a substantially staircase shape, and a first identification portion that melts and disappears when heated and melted by a hot plate is formed on the end surface of the first projection, and on the end surface of the second projection Since the second identification portion that does not melt at the time of heating and melting with the hot plate is formed, it has an excellent effect that the suitability of the first condition and the second condition described above can be easily determined.
以下、図1〜図5を用いて、本発明に係る樹脂タンクと樹脂部品との熱板溶接構造の幾つかの実施形態について説明する。 Hereinafter, several embodiments of a hot plate welding structure between a resin tank and a resin component according to the present invention will be described with reference to FIGS.
図1には、本実施形態に係る樹脂タンクと樹脂部品との熱板溶接構造の要部を拡大した斜視図が示されている。樹脂タンクとしてのフューエルタンク10は中空の略直方体形状を成しており、ブロー成形によって製造されている。このフューエルタンク10の所定位置には、平面視で円形の開口部12が形成されている。この開口部12には、図示しないフィラーパイプが結合される樹脂部品としてのインレットホース結合部14が熱板溶接によって溶着されるようになっている。
FIG. 1 is an enlarged perspective view of a main part of a hot plate welding structure of a resin tank and a resin component according to this embodiment. A
インレットホース結合部14は全体として略パイプ形状を成しており、扁平な円筒形状に形成されると共にフューエルタンク10の開口部12に溶着される基部14Aと、この基部14Aの軸芯部から同軸上に突出された結合部14Bと、によって構成されている。この結合部14Bに図示しないフィラーパイプが結合される。
The inlet
ここで、図1及び図2に示されるように、フューエルタンク10側の開口部12の周囲(溶着部12Aから外れた位置であればよい)には、周方向に所定の間隔(本実施形態では、一例として90°間隔)でタンク側溶着品質判定手段としてのタンク側突起部16が一体に形成されている。このタンク側突起部16は側面視で略階段形状を成しており、かつ開口部12の取付座12Bに隣接して配置されている。
Here, as shown in FIG. 1 and FIG. 2, there is a predetermined interval in the circumferential direction around the
より具体的には、タンク側突起部16は、その上段を構成する第1突起部18と、この第1突起部18と一体に形成されタンク側突起部16の下段を構成する第2突起部20と、によって構成されている。第1突起部18のタンク一般面10Aからの突出高さh1(図2(A)参照)は、熱板22での加熱溶融時の初期溶融代24に対応して定められている。なお、ここでいう「対応して」とは「関係付けられて」の意であり、必要かつ十分な初期溶融代を予め算定しておき、それが実際の加熱溶融時において実現されるように第1突起部18の突出高さh1を定めているという意味である(以下において使用する「対応して」の語も、同様の使い方をする)。
More specifically, the tank-
また、第2突起部20のタンク一般面10Aからの突出高さh2(図2(A)参照)は、第1突起部18の突出高さh1よりも低くかつ溶着時の残存溶融代(従来図である図5(B)の110参照)に対応して定められている。予め設定された初期溶融代にさらに、第1突起部18の平面形状は第2突起部20よりも小さく設定されており、径方向の外側に配置されている。これにより、第1突起部18と開口部12の取付座12Bとの間に所定の溝幅の溝26が形成されている。
Further, the protrusion height h2 (see FIG. 2A) of the
一方、インレットホース結合部14の基部14Aの周囲(溶着部28から外れた外周面であればよい)には、周方向に所定の間隔(本実施形態では、一例として90°間隔)で部品側溶着品質判定手段としてのホース側突起部30が一体に形成されている。これらのホース側突起部30は、タンク側突起部16と周方向にラップしないように配置されている。すなわち、各ホース側突起部30は、これに対応する各タンク側突起部16と斜向かいに対向している。従って、溶着後の状態では、図2(B)に示されるように、タンク側突起部16とホース側突起部30とは周方向にずれた位置で互いに宙に浮いた状態で保持されている。
On the other hand, around the
より具体的には、ホース側突起部30は、その下段を構成する第1突起部32と、この第1突起部32と一体に形成されホース側突起部30の上段を構成する第2突起部34と、によって構成されている。第1突起部32の突出高さh3(即ち、ホース側突起部30の上端面からの高さである。図2(A)参照)は、熱板22での加熱溶融時の初期溶融代24に対応して定められている。また、第2突起部34の突出高さh4(図2(A)参照)は、第1突起部32の突出高さh3よりも低くかつ溶着時の残存溶融代(従来図である図5(B)の110参照)に対応して定められている。なお、本実施形態では、h1=h3、h2=h4に設定されている。さらに、第1突起部32の平面形状は第2突起部34よりも小さく設定されており、径方向の外側に配置されている。これにより、第1突起部32とインレットホース結合部14の基部14Aの外周面の間には、所定の溝幅の溝36(図1参照)が形成されている。
More specifically, the hose-
次に、本実施形態の作用並びに効果について説明する。 Next, the operation and effect of this embodiment will be described.
フューエルタンク10の開口部12にインレットホース結合部14を熱板溶着するには、まず、図2(A)に示されるように、フューエルタンク10の開口部12の溶着部12Aとインレットホース結合部14の溶着部28とを、熱板22の上下両側にそれぞれ位置決めした状態でセットする。続いて、フューエルタンク10の開口部12の溶着部12A及びインレットホース結合部14の溶着部28を熱板22にそれぞれ押し付け、双方の溶着部12A、28をそれぞれ溶融させる。次に、熱板22を除去した後に、溶融状態にあるフューエルタンク10とインレットホース結合部14との溶着部12A、28同士を所定の押し込み力で相互に押し付ける。これにより、双方の溶着部12A、28同士が密着して一体化される。その後、溶着部12A、28が硬化すれば、フューエルタンク10の開口部12とインレットホース結合部14との熱板溶接が完了する。
In order to weld the inlet
ここで、本実施形態では、フューエルタンク10における開口部12の溶着部12Aの周囲にタンク側突起部16を一体に設けると共に、インレットホース結合部14における溶着部28の周囲でかつタンク側突起部16と周方向にラップしない位置にホース側突起部30を一体に設けたので、以下の如くして、溶着部12A、28の溶接品質を判定するすることができる。
Here, in the present embodiment, the
まず、タンク側突起部16の第1突起部18及びホース側突起部30の第1突起部32の突出高さh1、h3は初期溶融代24(図2(A)参照)に対応して設けられているため、熱板22での加熱溶融時に第1突起部18、32は必ず溶融していなればならない。これが第1条件となる。従って、仮にこの第1突起部18、32が溶融していない場合には、「加熱溶融時に溶着部の加熱不足が生じた」と判定することができる。
First, the projecting heights h1 and h3 of the first projecting
次に、第1突起部18、32と同一方向へ突出されかつ第1突起部18、32よりも突出高さが低く設定された第2突起部20、34は残存溶融代に対応して設けられているため、熱板22での加熱溶融時に第2突起部20、34は溶融してはならない。これが第2条件となる。従って、仮にこの第2突起部20、34が溶融している場合には、「熱板での加熱溶融時に溶着部を加熱し過ぎた」か又は「加熱時の押し込み力が強過ぎた」と判定することができる。
Next, the
さらに、溶着後に、タンク側突起部16の溶融後の第1突起部18の端面18Aと、ホース側突起部30の溶融後の第1突起部32の端面32Aとの距離(ギャップ)E(図2(B)参照)を目視又はゲージ等の測定器具を使って測定し、当該測定値が予め設定した目標管理値(許容管理値)に入っているかどうかを確認する。確認した結果、実測値が目標管理値以内にあれば、「溶着時の押し込み量は適正であった」と判定することができる。逆に、実測値が目標管理値以内になければ、「溶着時の押し込み力が不足していた」か又は「溶着時の押し込み力が強過ぎた」と判定することができる。
Further, after welding, the distance (gap) E between the
上記より、本実施形態に係る樹脂タンクと樹脂部品との熱板溶接構造によれば、熱板溶接時の良否を判定する際の重要なファクターである初期溶融代、残存溶融代、及び押し込み量のすべてを簡便な方法で確実に確認することができる。その結果、本実施形態によれば、破壊検査等の大掛かりな検査をしなくても、初期溶融代、残存溶融代、及び押し込み量の管理を適切かつ確実に行うことができ、ひいては熱板溶接品質を低コストで向上させることができる。 From the above, according to the hot plate welding structure between the resin tank and the resin component according to the present embodiment, the initial melting allowance, the residual melting allowance, and the indentation amount, which are important factors when determining the quality during hot plate welding. All of these can be reliably confirmed by a simple method. As a result, according to the present embodiment, the initial melting allowance, the remaining melting allowance, and the indentation amount can be managed appropriately and reliably without performing a large-scale inspection such as a destructive inspection. Quality can be improved at low cost.
また、本実施形態に係る樹脂タンクと樹脂部品との熱板溶接構造では、第1突起部18、32は溶着部12A、28の外縁に対して離間して配置されており、当該第1突起部18、32と溶着部12A、28の外縁との間には所定幅の溝26、36が形成されているため、溶着時の溶着バリ・溶着ビードを当該溝26、36へ逃がすことができる。このため、初期溶融代を規定する第1突起部18、32の機能が阻害されるのを防止することができる。つまり、仮に溝26、36を設定せず、第1突起部18、32を溶着部12A、28に隣接して設けた場合、熱板22での加熱溶融時に溶着部12A、28に生じる溶着バリ・溶着ビードが第1突起部18、32にそのまま雪崩れ込み、第1突起部18、32を溶かして初期溶融代が判別できなくなる可能性がある。しかし、本実施形態のように溝26を設けておけば、溶着部12A、28の溶着バリ・溶着ビードによって第1突起部18、32に悪影響が及ぶのを未然に防止することができる。その結果、本実施形態によれば、溶着部12A、28の溶着品質の判定に対する信頼性を向上させることができる。
Further, in the hot plate welding structure of the resin tank and the resin component according to the present embodiment, the
さらに、本実施形態に係る樹脂タンクと樹脂部品との熱板溶接構造では、タンク側突起部16はフューエルタンク10の成形と同時に一体成形され、又ホース側突起部30はインレットホース結合部14の成形と同時に一体成形される構成であるため、溶着品質を判定をするための意図的な識別部(例えば、スリット)を樹脂タンク及び樹脂部品の樹脂成形後の後加工によって別途設定する構造に比し、判定誤差が生じ難いというメリットがある。つまり、後加工によって樹脂タンク及び樹脂部品に別途識別部を設けるとなると、樹脂タンク及び樹脂部品の製造誤差に加えて後加工時の加工誤差が加わるので、判定誤差が大きくなる。これに対し、本実施形態に係る樹脂タンクと樹脂部品との熱板溶接構造では、フューエルタンク10及びインレットホース結合部14の成形と同時にタンク側突起部16及びホース側突起部30が形成されるため、その分、判定誤差が生じ難くなる。その他にも、工程数が減少するので、製造ラインの短縮化を図ることができ、コスト削減を図ることができるというメリットもある。
Further, in the hot plate welding structure of the resin tank and the resin component according to the present embodiment, the
次に、幾つかのバリエーションについて説明する。 Next, some variations will be described.
図3(A)に示される変形例では、タンク側溶着品質判定手段としてのタンク側突起部40を構成する第1突起部42の上端面に、円錐形状の第1識別部としての第1小突起44を設けると共に、第2突起部46の上端面に円錐形状の第2識別部としての第2小突起48を設けた点に特徴があある。
In the modification shown in FIG. 3 (A), the first small portion as the first discriminating portion having the conical shape is formed on the upper end surface of the first protruding
上記構成によれば、熱板22での加熱溶融時に第1小突起44が溶融して消失していれば、第1突起部42は熱板22での加熱溶融によって溶融したことが簡単に判る(即ち、視認して簡単に判別できる)。また、溶着後に第2小突起48が溶けているか否かを視認すれば、加熱し過ぎであったか否かが簡単に判る。よって、前述した第1条件及び第2条件の適否を簡単に判断することができる。
According to the above configuration, if the first
図3(B)に示される変形例では、タンク側溶着品質判定手段としてのタンク側突起部50を構成する第1突起部52と第2突起部54とを開口部12の径方向に並べた点に特徴がある。
In the modification shown in FIG. 3B, the
図3(C)に示される変形例では、タンク側溶着品質判定手段としてのタンク側突起部56を構成する第1突起部58と第2突起部60とをそれぞれ円柱形状に形成し、分離して開口部12の周方向に近接して配置した点に特徴がある。
In the modification shown in FIG. 3C, the
図3(D)に示される変形例では、タンク側溶着品質判定手段としてのタンク側突起部62を構成する第1突起部64と第2突起部66とを開口部12の全周に均一断面形状で設けた点に特徴がある。
In the modification shown in FIG. 3D, the
(実施形態の補足説明)
なお、上述した本実施形態では、フューエルタンク10をブロー成形によって製造したが、これに限らず、インジェクション成形によってフューエルタンクを製造する場合においても、本発明は適用可能である。
(Supplementary explanation of the embodiment)
In the above-described embodiment, the
また、上述した本実施形態では、フューエルタンク10側及びインレットホース結合部14側の双方に溶着品質判定手段を設ける構成を採ったが、これに限らず、いずれか一方にのみ溶着品質判定手段を設けるようにしてもよい。一般には、樹脂部品側の精度管理は容易であるため、フューエルタンク10側だけに溶着品質判定手段を設けても十分に有効である。逆に、フューエルタンク10側の精度保証が容易に得られるのであれば、樹脂部品側にのみ溶着品質判定手段を設けても一向に差し支えない。
Moreover, in this embodiment mentioned above, although the structure which provides a welding quality determination means in both the
さらに、上述した本実施形態では、タンク側突起部16及びホース側突起部30を周方向の4箇所に設定したが、工程能力との兼ね合いで1箇所又は2箇所でチェックすれば十分な場合もある。逆に5箇所以上にタンク側突起部及びホース側突起部を設定して信頼性を高めるようにしてもよい。
Furthermore, in the above-described embodiment, the
また、上述した本実施形態では、フューエルタンク10とインレットホース結合部14とを熱板溶接する場合に対して本発明を適用したが、これに限らず、フューエルタンク10とブリーザホースとを熱板溶接する場合に対して本発明を適用してもよい。また、樹脂タンクには、自動車の燃料タンクであるフューエルタンク10以外にもウォッシャ装置の構成部品であるウォッシャタンク等が含まれる他、車両以外の用途で使用される樹脂タンクも含まれる。要は、樹脂タンクと樹脂部品とを熱板溶接で溶着させるものであれば、本発明は適用可能である。
Moreover, in this embodiment mentioned above, although this invention was applied with respect to the case where the
10 フューエルタンク(樹脂タンク)
12A 溶着部
14 インレットホース結合部(樹脂部品)
16 タンク側突起部(タンク側溶着品質判定手段)
18 第1突起部
20 第2突起部
22 熱板
24 初期溶融代
26 溝
28 溶着部
30 ホース側突起部(部品側溶着品質判定手段)
32 第1突起部
34 第2突起部
36 溝
40 タンク側突起部(タンク側溶着品質判定手段)
42 第1突起部
44 第1小突起(第1識別部)
46 第2突起部
48 第2小突起(第2識別部)
50 タンク側突起部(タンク側溶着品質判定手段)
52 第1突起部
54 第2突起部
56 タンク側突起部(タンク側溶着品質判定手段)
58 第1突起部
60 第2突起部
62 タンク側突起部(タンク側溶着品質判定手段)
64 第1突起部
66 第2突起部
10 Fuel tank (resin tank)
16 Tank side protrusion (tank side welding quality judgment means)
18
32
42
46
50 Tank side protrusion (tank side welding quality judgment means)
52
58
64 1st protrusion 66 2nd protrusion
Claims (4)
樹脂タンク及び樹脂部品の少なくとも一方に、熱板での加熱溶融時の初期溶融代に対応して突出高さが定められた第1突起部と、この第1突起部と同一方向へ突出されると共に第1突起部よりも突出高さが低くかつ溶着時の残存溶融代に対応して突出高さが定められた第2突起部と、を備えた溶着品質判定手段を一体に設けた、
ことを特徴とする樹脂タンクと樹脂部品との熱板溶接構造。 A hot plate welding structure of a resin tank and a resin part for hot plate welding a resin part to a predetermined position of the resin tank,
At least one of the resin tank and the resin component is protruded in the same direction as the first protrusion, the first protrusion having a protrusion height determined corresponding to the initial melting allowance at the time of heat melting with the hot plate And a second protrusion having a protrusion height lower than that of the first protrusion and a protrusion height determined in accordance with the remaining melting allowance at the time of welding, integrally provided with a welding quality determination means,
A hot plate welded structure between a resin tank and a resin component.
樹脂タンクにおける溶着部の周囲に一体に設けられ、熱板での加熱溶融時の初期溶融代に対応して突出高さが定められた第1突起部と、この第1突起部と同一方向へ突出されると共に第1突起部よりも突出高さが低くかつ溶着時の残存溶融代に対応して突出高さが定められた第2突起部と、を備えたタンク側溶着品質判定手段と、
樹脂部品における溶着部の周囲に一体に設けられると共に前記タンク側溶着品質判定手段と周方向にラップしない位置に配置され、熱板での加熱溶融時の初期溶融代に対応して突出高さが定められた第1突起部と、この第1突起部と同一方向へ突出されると共に第1突起部よりも突出高さが低くかつ溶着時の残存溶融代に対応して突出高さが定められた第2突起部と、を備えた部品側溶着品質判定手段と、
を有することを特徴とする樹脂タンクと樹脂部品との熱板溶接構造。 A hot plate welding structure of a resin tank and a resin part for hot plate welding a resin part to a predetermined position of the resin tank,
A first projection provided integrally around the welded portion of the resin tank and having a projection height determined corresponding to the initial melting allowance during heating and melting with a hot plate, and in the same direction as the first projection A tank-side welding quality determination means comprising: a second protrusion that protrudes and has a protrusion height lower than that of the first protrusion and a protrusion height determined in accordance with the remaining melting allowance during welding;
Provided integrally around the welded portion of the resin part and disposed at a position that does not wrap in the circumferential direction with the tank-side weld quality judging means, and has a protruding height corresponding to the initial melting allowance at the time of heating and melting with a hot plate. The defined first protrusion, the protrusion protruding in the same direction as the first protrusion, the protrusion height is lower than the first protrusion, and the protrusion height is determined corresponding to the remaining melting allowance at the time of welding. A second-side projection part, and a component-side welding quality determination means comprising:
A hot plate welding structure between a resin tank and a resin component.
ことを特徴とする請求項1又は請求項2記載の樹脂タンクと樹脂部品との熱板溶接構造。 The first protrusion is disposed away from the outer edge of the welded portion, and a groove having a predetermined width is formed between the first protrusion and the outer edge of the welded portion.
3. A hot plate welded structure between a resin tank and a resin part according to claim 1 or 2.
当該第1突起部の端面には熱板での加熱溶融時に溶融して消失する第1識別部が形成されていると共に、当該第2突起部の端面には熱板での加熱溶融時には溶融しない第2識別部が形成されている、
ことを特徴とする請求項1乃至請求項3のいずれかに記載の樹脂タンクと樹脂部品との熱板溶接構造。 The first protrusion and the second protrusion are formed integrally and substantially in a step shape,
The end face of the first protrusion is formed with a first identification part that melts and disappears when heated and melted by a hot plate, and the end face of the second protrusion does not melt when heated and melted by a hot plate A second identification part is formed,
The hot plate welding structure of a resin tank and a resin part according to any one of claims 1 to 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004067717A JP4140538B2 (en) | 2004-03-10 | 2004-03-10 | Hot plate welding structure between resin tank and resin parts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004067717A JP4140538B2 (en) | 2004-03-10 | 2004-03-10 | Hot plate welding structure between resin tank and resin parts |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005254559A true JP2005254559A (en) | 2005-09-22 |
JP4140538B2 JP4140538B2 (en) | 2008-08-27 |
Family
ID=35080767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004067717A Expired - Fee Related JP4140538B2 (en) | 2004-03-10 | 2004-03-10 | Hot plate welding structure between resin tank and resin parts |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4140538B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101774088B1 (en) | 2014-10-31 | 2017-09-04 | 주식회사 동희산업 | Plastic tank, method and system for welding palstic tank |
JP2020069617A (en) * | 2018-11-02 | 2020-05-07 | トヨタ自動車株式会社 | Weld bead cutting device and weld bead cutting method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0210121U (en) * | 1988-07-06 | 1990-01-23 | ||
JP2001225389A (en) * | 2000-02-16 | 2001-08-21 | Honda Motor Co Ltd | Method for recognizing welding of part to be vibration welded |
JP2002086568A (en) * | 2000-09-13 | 2002-03-26 | Futaba Industrial Co Ltd | Vacuum tank made of resin and its production method |
JP2003181928A (en) * | 2001-12-19 | 2003-07-03 | Inoac Corp | Structure for confirming quality of vibration fusion bonding |
JP2003285375A (en) * | 2002-03-29 | 2003-10-07 | Gp Daikyo Corp | Joining structure of hollow body with inner member |
-
2004
- 2004-03-10 JP JP2004067717A patent/JP4140538B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0210121U (en) * | 1988-07-06 | 1990-01-23 | ||
JP2001225389A (en) * | 2000-02-16 | 2001-08-21 | Honda Motor Co Ltd | Method for recognizing welding of part to be vibration welded |
JP2002086568A (en) * | 2000-09-13 | 2002-03-26 | Futaba Industrial Co Ltd | Vacuum tank made of resin and its production method |
JP2003181928A (en) * | 2001-12-19 | 2003-07-03 | Inoac Corp | Structure for confirming quality of vibration fusion bonding |
JP2003285375A (en) * | 2002-03-29 | 2003-10-07 | Gp Daikyo Corp | Joining structure of hollow body with inner member |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101774088B1 (en) | 2014-10-31 | 2017-09-04 | 주식회사 동희산업 | Plastic tank, method and system for welding palstic tank |
JP2020069617A (en) * | 2018-11-02 | 2020-05-07 | トヨタ自動車株式会社 | Weld bead cutting device and weld bead cutting method |
JP7047711B2 (en) | 2018-11-02 | 2022-04-05 | トヨタ自動車株式会社 | Welding bead cutting equipment |
Also Published As
Publication number | Publication date |
---|---|
JP4140538B2 (en) | 2008-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111527339B (en) | Inner container for high-pressure storage tank and manufacturing method thereof | |
US20160216145A1 (en) | Measuring tube for a flow measuring device and flow measuring device | |
JP6598785B2 (en) | Brazed joint parts | |
US11473726B2 (en) | Liner configuring member, high pressure tank, and method of manufacturing same | |
US20150076809A1 (en) | Electrofusion Fittings and Methods | |
JP4140538B2 (en) | Hot plate welding structure between resin tank and resin parts | |
EP0695624A1 (en) | Tank connector construction | |
US20140361447A1 (en) | Turbomachine fuel-air mixer component including an additively manufactured portion joined to a non-additively manufactured portion and method | |
JPH02270536A (en) | Device for detecting changes in phisical conditions of fusible plastic material | |
US20230065732A1 (en) | Electrofusion joint and fusion method | |
JP2013119342A (en) | Component welding structure of fuel tank | |
WO2017072886A1 (en) | Resin piping member, resin pipe joint, and piping production method | |
JP3529727B2 (en) | Structure of the joint part of the child part to the fuel tank made of synthetic resin | |
WO2021100725A1 (en) | Thermal caulking joined body | |
JP5325039B2 (en) | Deburring method | |
JP3240885B2 (en) | Electric fusion joint | |
JP2020062866A (en) | Quality determination method for molding quality of resin molded product | |
JPH11280978A (en) | Electric fusion coupling | |
JP2005335218A (en) | Welding method for plastic material | |
JPH1163358A (en) | Electrofusion joint | |
JP3233722B2 (en) | Manufacturing method of fusion joint | |
JP3584526B2 (en) | Electric fusion joint | |
JPH10185066A (en) | Electric fusion coupling and fusion confirming method | |
JPH0726637Y2 (en) | Welding joint | |
JP2006224132A (en) | Method and apparatus for inspecting joined state |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060524 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080512 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20080520 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080602 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110620 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110620 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110620 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120620 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120620 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130620 Year of fee payment: 5 |
|
LAPS | Cancellation because of no payment of annual fees |