JPH0355296B2 - - Google Patents
Info
- Publication number
- JPH0355296B2 JPH0355296B2 JP29894585A JP29894585A JPH0355296B2 JP H0355296 B2 JPH0355296 B2 JP H0355296B2 JP 29894585 A JP29894585 A JP 29894585A JP 29894585 A JP29894585 A JP 29894585A JP H0355296 B2 JPH0355296 B2 JP H0355296B2
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- base material
- thermoplastic
- edge
- fabric
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 135
- 229920001169 thermoplastic Polymers 0.000 claims description 36
- 239000004416 thermosoftening plastic Substances 0.000 claims description 36
- 239000004744 fabric Substances 0.000 claims description 34
- 238000003466 welding Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000012815 thermoplastic material Substances 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/729—Textile or other fibrous material made from plastics
-
- 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
- B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
-
- 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
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/024—Thermal pre-treatments
- B29C66/0242—Heating, or preheating, e.g. drying
-
- 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
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- 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
- B29C66/40—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
- B29C66/50—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
- B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars 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
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2313/00—Use of textile products or fabrics as reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Textile Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は車輛用ドアトリムや天井トリムのよう
な車輛用内装材の製造工程中硬質の基材表面に２
種以上の素材を異にする表皮材で装飾効果に優れ
た表装を行うための車輛用内装材の表皮被装方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a method for applying two or more materials to the surface of a hard base material during the manufacturing process of vehicle interior materials such as vehicle door trims and ceiling trims.
The present invention relates to a method for covering a vehicle interior material with an excellent decorative effect using skin materials made of different materials.
（従来の技術）
ABS樹脂などの熱可塑性合成樹脂よりなる基
材の表面をポリエステル系のフアブリツク材と塩
化ビニル樹脂シートとにより覆つてその重ね合せ
部分を基材に溶着一体化した車輛用内装材が自動
車内装材として現在広く使われている。このよう
な内装材は、高周波ウエルダの下定盤に熱可塑性
合成樹脂材よりなる基材をセツトしたうえ該基材
の表面に基材の融点よりも高融点のフアブリツク
表皮材と基材の融点よりも低融点の熱可塑性表皮
材とをフアブリツク表皮材の端縁上に熱可塑性表
皮材の端縁が重なるように載装して上定盤に取付
けられた電極を重ね合せ部分に圧接し、高周波加
熱により三者を溶着一体化して表皮を被装するの
が一般的である。(Prior art) A vehicle interior material in which the surface of a base material made of thermoplastic synthetic resin such as ABS resin is covered with a polyester fabric material and a vinyl chloride resin sheet, and the overlapping portion is welded and integrated with the base material. is currently widely used as an automobile interior material. Such interior materials are made by setting a base material made of a thermoplastic synthetic resin material on the lower surface plate of a high-frequency welder, and then applying a fabric skin material with a melting point higher than that of the base material to the surface of the base material. A thermoplastic skin material with a low melting point is placed on the edge of the fabric skin material so that the edges of the thermoplastic skin material overlap, and an electrode attached to the upper surface plate is pressure-welded to the overlapping part, and a high-frequency It is common to weld the three parts together by heating and cover the skin.
（発明が解決しようとする問題点）
ところが、前記したような方法で表皮を被装す
ると従来の高周波溶着法では熱可塑性表皮材２４
をフアブリツク表皮材２３に接合するための加熱
が基材にまで影響して、第４図に示すように、基
材２２が軟化して凹状に変形する。また、このよ
うに凹状に変形すると基材２２の余肉が溶接加圧
ラインからはみだして溶接加圧ラインに沿つて凸
状の土手を形成し、これは凸状の突起として露呈
し、外観を損なうという問題点がある。また、余
肉として基材２２の樹脂が横に逃げた分だけ接合
部はフアブリツク表皮材２３の基材２２に対する
接合強度が低下するという問題点がある。(Problems to be Solved by the Invention) However, when covering the skin with the method described above, the conventional high frequency welding method
The heating for joining the fabric to the fabric skin material 23 also affects the base material, causing the base material 22 to soften and deform into a concave shape, as shown in FIG. Furthermore, when the base material 22 is deformed into a concave shape, the excess thickness of the base material 22 protrudes from the welding pressure line, forming a convex bank along the welding pressure line, and this is exposed as a convex protrusion, which deteriorates the appearance. There is the problem of damage. Further, there is a problem in that the bonding strength of the fabric skin material 23 to the base material 22 at the joint portion is reduced by the amount of excess resin from the base material 22 that escapes laterally.
（問題点を解決するための手段）
本発明は前記のような問題点を解決した車輛用
内装材の表皮被装方法を目的として完成されたも
ので、高周波ウエルダの下定盤に熱可塑性合成樹
脂材よりなる基材をセツトしたうえ該基材の表面
に基材の融点よりも高融点のフアブリツク表皮材
と基材の融点よりも低融点の熱可塑性表皮材とを
フアブリツク表皮材の端縁上に熱可塑性表皮材の
端縁が重なるように載装して上定盤に取付けられ
た電極を重ね合せ部分に圧接して三者を高周波溶
着するようにした車輛用内装材の表皮材被装方法
において、電極を上定盤に付設されたヒータによ
り熱可塑性表皮材の軟化温度程度に昇温し、該電
極への通電を行うことなく重ね合せ部分の表面に
圧接して熱可塑性表皮材の端縁部分を予備加熱
し、次ぎに、前記圧接状態のまま基材に対し実効
が及ばない範囲の低電流を通電して予備加熱され
た熱可塑性表皮材の端縁部分を軟化させてフアブ
リツク表皮材の端縁部分に馴染ませたうえ高電流
に切換え、前記軟化部分を溶融してフアブリツク
表皮材の端縁部分に流動含浸させるとともに基材
表面を軟化させ、基材表面の軟化後は高電流を通
電したまま電極による加圧力を低くしてフアブリ
ツク表皮材の端縁部分をこれに流動含浸された溶
融樹脂をもつて基材の軟化部分に高周波溶着さ
せ、溶着後は低加圧状態を保持したまま通電を解
いて前記重ね合わせ部分を一体化することを特徴
とするものである。(Means for Solving the Problems) The present invention has been completed with the aim of providing a surface covering method for vehicle interior materials that solves the above-mentioned problems. A fabric skin material having a melting point higher than that of the base material and a thermoplastic skin material having a melting point lower than that of the base material are placed on the surface of the base material on the edge of the fabric skin material. A skin material coating for a vehicle interior material in which the edges of the thermoplastic skin material are placed so that they overlap, and the electrodes attached to the upper surface plate are pressed against the overlapping part and the three parts are welded by high frequency. In this method, the temperature of the electrode is raised to about the softening temperature of the thermoplastic skin material by a heater attached to the upper surface plate, and the electrode is pressed against the surface of the overlapped part without applying electricity to the thermoplastic skin material. The edges of the thermoplastic skin material are preheated, and then a low current that does not reach the base material is applied to the base material in the press-contact state to soften the edges of the preheated thermoplastic skin material to form a fabric skin. After blending into the edge of the material, the current is switched to high, melting the softened portion and impregnating the edge of the fabric with flow, softening the base material surface, and applying high current after the base material surface has softened. While the current is being applied, the pressure applied by the electrode is lowered, and the edge portion of the fabric skin material is high-frequency welded to the softened portion of the base material using the flow-impregnated molten resin, and the low pressure state is maintained after welding. This feature is characterized in that the overlapping portions are integrated by removing the energization while keeping them in place.
本発明において電極を上定盤に付設さたヒータ
により熱可塑性表皮材の軟化温度程度まで昇温
し、電極への通電を行うことなく重ね合わせ部分
の表面に圧接して熱可塑性表皮材の端縁部分を予
備加熱しておくのは、基材が軟化することなく短
時間の低電流通電によつて熱可塑性表皮材の端縁
部分のみをフアブリツク表皮材の端縁部分に軟化
した状態でよく馴染ませ、高電流に切換え後に基
材が溶融されないうちに熱可塑性表皮材の端縁部
分が溶融してフアブリツク表皮材の端縁部分に流
動含浸される態勢をとるために極めて重要な工程
である。また、圧接状態で高電流に切換えること
により熱可塑性表皮材の軟化部分を溶融してフア
ブリツク表皮材の端縁部分に流動含浸させるとと
もに基材の表面部分を軟化させたら該基材が溶融
する前に加圧力を低くするのは、加圧力が高い状
態で高電流を通電し続けると基材の加圧部分が凹
状に変形して余肉が溶接加圧ラインからはみだ
し、従来法と同様の問題が解消されないからであ
つて、この工程も極めて重要な工程である。 In the present invention, the temperature of the electrode is raised to about the softening temperature of the thermoplastic skin material by a heater attached to the upper surface plate, and the edge of the thermoplastic skin material is pressed against the surface of the overlapped portion without energizing the electrode. The preheating of the edges can be done in such a way that only the edges of the thermoplastic skin material are softened to the edges of the fabric skin material by applying a low current for a short time without softening the base material. This is an extremely important step in order to ensure that the edges of the thermoplastic skin material are melted and fluidly impregnated into the edges of the fabric skin material before the base material melts after switching to high current. . In addition, by switching to a high current in the press-welded state, the softened part of the thermoplastic skin material is melted and the edge part of the fabric skin material is flowed and impregnated, and the surface part of the base material is softened before the base material melts. The reason for lowering the welding force is that if a high current continues to be applied while the welding force is high, the pressurized part of the base material will deform into a concave shape and the excess material will protrude from the welding pressure line, which is the same problem as in the conventional method. This step is also an extremely important step.
（実施例）
次に、本発明方法を図示の高周波ウエルダをも
とに詳細に説明すれば、１は高周波ウエルダの下
定盤であつて、該下定盤１にはABS樹脂よりな
る基材２がセツトされ、この基材２上にはその一
半部にポリエステル系のフアブリツク表皮材３
が、他半部には塩化ビニル樹脂系の熱可塑性表皮
材４が前記フアブリツク表皮材３の端縁上に熱可
塑性表皮材４の端縁が重なるように載装してあ
る。５は上定盤であつて、その下面の電極ベース
６にはヒータ７が内蔵されていてヒータ通電時に
は該電極ベース６に垂設された電極８が熱可塑性
表皮材４の軟化温度である65〜80℃程度に昇温さ
れるようになつている。なお、図中、９，９は下
定盤１に植設されるスぺーサであつて、該スぺー
サ９，９は上定盤５が下降した際に接触して電極
８による加圧力が一定以上にならないように制限
している。しかして、溶着作業を行う場合は先ず
ヒータ７のみに通電して電極８を熱可塑性表皮材
４の軟化温度程度に昇温し、電極８への通電を行
うことなくフアブリツク表皮材３と熱可塑性表皮
材４の重ね合せ部分１１の表面に40〜50Kg／cm2の
圧力で電極８を0.5〜1.5秒程度圧接して熱可塑性
表皮材４の端縁部分を予備加熱する。次に、この
圧接状態をそのままにして基材２に対し実効が及
ばない範囲である0.4〜0.6A程度の低電流を2.5〜
3.3秒程度通電し、前記の予備加熱された熱可塑
性表皮材４の端縁部分を軟化させ、フアブリツク
表皮材３の端縁部分に前記加圧力の補助下によく
馴染ませる。次いで、電極８への通電を通常の高
周波溶着において行われる1.0〜1.2A程度の高電
流に切換え、0.3〜0.5秒間保持して前記軟化部分
を溶融し、フアブリツク表皮材３の端縁部分に流
動含浸させるとともに基材２の表面を軟化させ
る。そして、基材２の表面が軟化したら溶融前に
前記加圧力を30〜40Kg／cm2まで低くし、フアブリ
ツク表皮材３の端縁部分に流動含浸された溶融樹
脂をもつて基材２の軟化部分に1.0〜1.2A程度の
高電流のまま0.7〜1.5秒程度保持して高周波溶着
し、溶着後は通電を止めるが30〜40Kg／cm2程度の
低加圧状態に３〜４秒間保持させたまま冷却して
重ね合せ部分１１において三者を溶着一体化す
る。(Example) Next, the method of the present invention will be explained in detail based on the illustrated high-frequency welder. 1 is a lower surface plate of the high-frequency welder, and the lower surface plate 1 has a base material 2 made of ABS resin. A polyester fabric skin material 3 is placed on one half of the base material 2.
However, on the other half, a thermoplastic skin material 4 made of vinyl chloride resin is mounted so that the edge of the thermoplastic skin material 4 overlaps the edge of the fabric skin material 3. Reference numeral 5 denotes an upper surface plate, in which a heater 7 is built into an electrode base 6 on the lower surface, and when the heater is energized, an electrode 8 vertically disposed on the electrode base 6 has a temperature at which the thermoplastic skin material 4 softens 65 The temperature is now being raised to around 80℃. In addition, in the figure, 9, 9 are spacers implanted in the lower surface plate 1, and these spacers 9, 9 come into contact when the upper surface plate 5 is lowered, and the pressurizing force by the electrode 8 is applied to the spacers 9, 9. It is restricted so that it does not exceed a certain level. Therefore, when performing welding work, firstly, only the heater 7 is energized to raise the temperature of the electrode 8 to about the softening temperature of the thermoplastic skin material 4, and then the fabric skin material 3 and the thermoplastic material are bonded without energizing the electrode 8. The edge portion of the thermoplastic skin material 4 is preheated by pressing the electrode 8 against the surface of the overlapping portion 11 of the skin material 4 at a pressure of 40 to 50 kg/cm 2 for about 0.5 to 1.5 seconds. Next, with this press-welded state as it is, a low current of about 0.4 to 0.6 A, which is in the range that does not reach the base material 2, is applied at 2.5 to 2.5 A.
Electricity is applied for about 3.3 seconds to soften the edge portion of the preheated thermoplastic skin material 4, and to make it fit well into the edge portion of the fabric skin material 3 with the aid of the pressurizing force. Next, the current applied to the electrode 8 is switched to a high current of about 1.0 to 1.2 A, which is used in normal high-frequency welding, and is held for 0.3 to 0.5 seconds to melt the softened part and flow to the edge part of the fabric skin material 3. The surface of the base material 2 is softened while being impregnated. Then, when the surface of the base material 2 is softened, the pressure is lowered to 30 to 40 kg/cm 2 before melting, and the edge portion of the fabric skin material 3 is flowed and impregnated with the molten resin to soften the base material 2. High frequency welding is performed by holding a high current of about 1.0 to 1.2 A for about 0.7 to 1.5 seconds, and after welding, the current is stopped, but a low pressure of about 30 to 40 kg/cm 2 is maintained for 3 to 4 seconds. The three parts are then cooled and welded together at the overlapping part 11.
このようにして得られた車輛用内装材は、第３
図に示すようにフアブリツク表皮材３と熱可塑性
表皮材４とがその重ね合わされた端縁部分におい
て溶着されて線状模様が形成されるとともにフア
ブリツク表皮材３の端縁部分は熱可塑性表皮材４
の端縁部分が溶融した溶融樹脂をもつて基材２の
表面に殆ど凹状の変形部分を形成することなく適
確に溶着さたものとなる。 The vehicle interior material obtained in this way is
As shown in the figure, the fabric skin material 3 and the thermoplastic skin material 4 are welded at their overlapped edge portions to form a linear pattern, and the edge portions of the fabric skin material 3 are welded to form a thermoplastic skin material 4.
The edge portion of the base material 2 is properly welded to the surface of the base material 2 with the molten resin without forming a substantially concave deformed portion.
（発明の効果）
本発明方法はヒータ７により予め所定の温度に
昇温してある電極８を使用して高周波溶着しよう
とする熱可塑性表皮材４の端縁部分を予備加熱し
たうえ電極８への通電を行うようにし、しかも、
この電極８への通電は最上層にある熱可塑性表皮
材４のみを軟化してフアブリツク表皮材３によく
馴染ませるために加圧下で行う低電流通電と、軟
化した熱可塑性表皮材４の端縁部分を溶融してフ
アブリツク表皮材３の端縁部分に流動含浸させる
とともに重ね合せ部分１１に対応する基材２の表
面部分を軟化させるために前工程と同様の加圧下
で行う高電流通電と、低加圧下に続ける高電流通
電との組合わせによるものとしたから、熱可塑性
表皮材４をフアブリツク表皮材３に接合するため
に通常高加圧下で行う高周波溶着の時間が短縮で
き、このため従来方法で見られた基材の凹状変形
やこの変形に伴う溶接加圧ラインからの余肉のは
みだしがなくなり、極めて体裁がよくなるばかり
か軟化点が230〜240℃のポリエステル系表皮材の
ようなフアブリツク表皮材３自身に接着能がなく
てもホツトメルトフイルム等を使用することなく
熱可塑性表皮材４および基材２に対し適確に接合
一体化される。(Effects of the Invention) In the method of the present invention, the edge portion of the thermoplastic skin material 4 to be high-frequency welded is preheated using the electrode 8 which has been heated to a predetermined temperature by the heater 7, and then the electrode 8 is heated to a predetermined temperature by the heater 7. energized, and
This electrode 8 is supplied with low current under pressure in order to soften only the thermoplastic skin material 4 on the top layer and blend well with the fabric skin material 3, and the edges of the softened thermoplastic skin material 4. high current energization carried out under pressure similar to the previous step in order to melt and flow impregnate the edge portion of the fabric skin material 3 and soften the surface portion of the base material 2 corresponding to the overlapped portion 11; Since this method is combined with high current application under low pressure, the time required for high frequency welding, which is normally performed under high pressure to join the thermoplastic skin material 4 to the fabric skin material 3, can be shortened, which is faster than conventional welding. This method eliminates the concave deformation of the base material and the protrusion of excess material from the welding pressure line due to this deformation, and not only improves the appearance, but also allows fabrics such as polyester skin materials with a softening point of 230 to 240°C to be used. Even if the skin material 3 itself does not have adhesive ability, it can be properly joined and integrated with the thermoplastic skin material 4 and the base material 2 without using a hot melt film or the like.
従つて、本発明は短時間で効率的に熱可塑性表
皮材とフアブリツク表皮材と基材との三者を適確
に溶着一体化でき、硬質の基材表面を２種以上の
素材を異にした表皮材で装飾効果に優れた表装を
行える車輛用内装材の表皮被装方法として業界の
発展にたらすところ極めて大なものがある。 Therefore, the present invention can accurately weld and integrate the thermoplastic skin material, fabric skin material, and base material in a short time and efficiently. The method of covering the surface of vehicle interior materials, which can be used to provide a surface with excellent decorative effects, will greatly contribute to the development of the industry.
第１図は本発明方法を実施する高周波ウエルダ
の一部切欠正面図、第２図は本発明方法における
時間−圧力曲線および時間−電流曲線を示すグラ
フ、第３図は本発明方法により得られた製品の要
部の断面図、第４図は従来法により得られた製品
の要部の断面図である。
１：下定盤、２：基材、３：フアブリツク表皮
材、４：熱可塑性表皮材、５：上定盤、７：ヒー
タ、８：電極。
FIG. 1 is a partially cutaway front view of a high-frequency welder in which the method of the present invention is carried out, FIG. 2 is a graph showing a time-pressure curve and a time-current curve in the method of the present invention, and FIG. FIG. 4 is a sectional view of the main part of the product obtained by the conventional method. 1: lower surface plate, 2: base material, 3: fabric skin material, 4: thermoplastic skin material, 5: upper surface plate, 7: heater, 8: electrode.
Claims (1)
材よりなる基材をセツトしたうえ該基材の表面に
基材の融点よりも高融点のフアブリツク表皮材と
基材の融点よりも低融点の熱可塑性表皮材とをフ
アブリツク表皮材の端縁上に熱可塑性表皮材の端
縁が重なるように載装して上定盤に取付けられた
電極を重ね合せ部分に圧接して三者を高周波溶着
するようにした車輛用内装材の表皮材被装方法に
おいて、電極を上定盤に付設されたヒータにより
熱可塑性表皮材の軟化温度程度に昇温し、該電極
への通電を行うことなく重ね合せ部分の表面に圧
接して熱可塑性表皮材の端縁部分を予備加熱し、
次に、前記圧接状態のまま基材に対し実効が及ば
ない範囲の低電流を通電して予備加熱された熱可
塑性表皮材の端縁部分を軟化させてフアブリツク
表皮材の端縁部分に馴染ませたうえ高電流に切換
え、前記軟化部分を溶融してフアブリツク表皮材
の端縁部分に流動含浸させるとともに基材表面を
軟化させ、基材表面の軟化後は高電流を通電した
まま電極による加圧力を低くしてフアブリツク表
皮材の端縁部分をこれに流動含浸された溶融樹脂
をもつて基材の軟化部分に高周波溶着させ、溶着
後は低加圧状態を保持したまま通電を解いて前記
重ね合わせ部分を一体化することを特徴とする車
輛用内装材の表皮材被装方法。1 A base material made of a thermoplastic synthetic resin material is set on the lower surface plate of a high-frequency welder, and a fabric skin material with a melting point higher than that of the base material and a thermoplastic material with a melting point lower than that of the base material are placed on the surface of the base material. The thermoplastic skin material is placed on the edge of the fabric skin material so that the edge of the thermoplastic skin material overlaps with the edge of the fabric skin material, and the electrodes attached to the upper surface plate are pressed against the overlapping part to weld the three parts using high frequency welding. In the method for covering the skin material of vehicle interior materials, the temperature of the electrode is raised to about the softening temperature of the thermoplastic skin material by a heater attached to the upper surface plate, and the overlapped portion is heated without energizing the electrode. The edges of the thermoplastic skin material are preheated by pressure contact with the surface of the
Next, while in the pressure-welded state, a low current is applied to the base material in a range that does not reach the base material to soften the edge portion of the preheated thermoplastic skin material and make it blend into the edge portion of the fabric skin material. Then, the current is switched to a high current, the softened portion is melted, and the edge of the fabric skin material is flowed and impregnated, and the surface of the base material is softened. After the surface of the base material has been softened, the high current is applied while applying pressure with an electrode. The edge portion of the fabric skin material is welded to the softened portion of the base material using high frequency welding with the flow-impregnated molten resin at a low pressure. A method for covering a vehicle interior material with a skin material, characterized by integrating mating parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60298945A JPS62152830A (en) | 1985-12-27 | 1985-12-27 | Furnishing surface skin of interior trim for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60298945A JPS62152830A (en) | 1985-12-27 | 1985-12-27 | Furnishing surface skin of interior trim for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62152830A JPS62152830A (en) | 1987-07-07 |
| JPH0355296B2 true JPH0355296B2 (en) | 1991-08-22 |
Family
ID=17866215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60298945A Granted JPS62152830A (en) | 1985-12-27 | 1985-12-27 | Furnishing surface skin of interior trim for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62152830A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4455376B2 (en) * | 2005-03-08 | 2010-04-21 | 旭化成株式会社 | Filter unit and manufacturing method thereof |
| CN114589925B (en) * | 2022-03-10 | 2024-05-28 | 广东乔艺塑胶有限公司 | Ultrasonic plastic low-pressure welding device and welding process thereof |
-
1985
- 1985-12-27 JP JP60298945A patent/JPS62152830A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62152830A (en) | 1987-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH08142770A (en) | Interior part for automobile and manufacture thereof | |
| JP2608856B2 (en) | Plastic sheet lap joint smoothing method | |
| JPH01210330A (en) | Welding method and device and welding rod | |
| GB2224683A (en) | Connection element for producing a welded and glued connection | |
| JPS59193773A (en) | Weld bond method | |
| JPH0355296B2 (en) | ||
| JPS59166386A (en) | Method of joining metallic plate | |
| JPH04232029A (en) | Welding at least one area of support sheet to receiving surface of carrier layer | |
| JPH0438580B2 (en) | ||
| JPH0742702Y2 (en) | Hot plate device for welding resin members | |
| JPH0510421U (en) | Cutting cloth joining device | |
| JPS63205214A (en) | Both-side embossing of vinyl chrolide sheet employing two embossing rolls | |
| JPH01123722A (en) | Manufacture of panel | |
| JPH0347865Y2 (en) | ||
| EP1272702A1 (en) | Fabric joining by fibre encapsulation | |
| JPS60230830A (en) | High frequency fusion bonding method of beading | |
| JPS58168517A (en) | Molding method of outer skin member for seat of vehicle | |
| JPH0139334B2 (en) | ||
| JPS5828348A (en) | Manufacture of carpet for automobile | |
| JPS6198528A (en) | Method of high-frequency weldering | |
| JPS6022539A (en) | Carpet mat and preparation thereof | |
| JPS6131255A (en) | Manufacture of sheet skin with irregular pattern | |
| JPS63303720A (en) | Joining method of sheet | |
| JP2610204B2 (en) | Welding method of heel mat in carpet for vehicles | |
| JP2003073969A (en) | Method for bonding canvas and bonding device |