CN104136785A - 发泡树脂芯材复合板的连结结构 - Google Patents

发泡树脂芯材复合板的连结结构 Download PDF

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CN104136785A
CN104136785A CN201380010869.8A CN201380010869A CN104136785A CN 104136785 A CN104136785 A CN 104136785A CN 201380010869 A CN201380010869 A CN 201380010869A CN 104136785 A CN104136785 A CN 104136785A
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foamex
hole
connecting member
peripheral portion
core composite
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CN104136785B (zh
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杉本明男
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Kobe Steel Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/0096—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by using permanent deformation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
    • B21D39/032—Joining superposed plates by locally deforming without slitting or piercing by fitting a projecting part integral with one plate in a hole of the other plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
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    • B21J15/04—Riveting hollow rivets mechanically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
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    • B60—VEHICLES IN GENERAL
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    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • F16B5/08—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of welds or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
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    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
    • B29C66/70—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
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
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    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

在本发明中，在发泡树脂芯材复合板(1)的连结部设置有贯通孔(2)和挤压周缘部(3a)，该挤压周缘部(3a)通过挤压发泡树脂(1c)的芯材而成。从纵壁部(4)的基端侧向贯通孔(2)嵌合插入金属制的连结部件(11)的圆筒部(11a)。连结部件(11)以对圆筒部(11a)进行按压扩展的方式借助覆盖在纵壁部(4)的外侧的孔眼状部件(12)铆接在纵壁部(4)的前端侧。连结部件(11)与对象部件A通过向圆筒部(11a)嵌合插入的螺栓(13)与螺母(14)紧固而连结。

Description

发泡树脂芯材复合板的连结结构
技术领域
本发明涉及将发泡树脂芯材复合板与对象部件连结的发泡树脂芯材复合板的连结结构。
背景技术
在机动车的各种外板、内板等板部件、绝热材料、底板底罩等罩部件中，有时使用通过将发泡树脂的芯材夹在钢板、铝板等金属板之间而形成的发泡树脂芯材复合板(例如，参照专利文献1)。所述发泡树脂芯材复合板以赋予机动车的轻量化、减振性能、隔音性能等作为目的。
机动车的板部件、罩部件大多利用电阻焊接、螺栓连结与相同配件的其他部件、框架部件等对象部件连结。然而，对于由发泡树脂芯材复合板形成的这些部件，由于不导电的软质的发泡树脂作为芯材而夹设，因此无法进行基于电阻焊接的连结。另外，存在即便利用螺栓连结也难以与对象部件稳固地连结的难点。
作为通过螺栓连结将发泡树脂芯材复合板与对象部件稳固地连结的手段，提出了向设置于复合板的螺栓孔贯通插入螺栓，将由比复合板的厚度长的主体部与凸缘部构成的圆筒状部件夹装在螺栓与螺栓孔之间的连结结构。在该结构中，通过用螺栓拧入圆筒状部件的主体部，由此在向芯材层侧伸出变形的主体部与凸缘部或者对象部件之间夹持表背面的金属板。另外，提出了同样在向螺栓孔贯通插入的螺栓与螺栓孔之间夹设具有圆锥面的多个碟形弹簧的连结结构(例如，参照专利文献2)。在该结构中，通过用螺栓拧入碟形弹簧，由此在变形为扁平并向芯材层侧伸出的碟形弹簧与垫圈或者对象部件之间夹持表背面的金属板。
在先技术文献
专利文献
专利文献1：日本国特开2009-90522号公报
专利文献2：日本国特开2011-133088号公报
发明内容
根据专利文献2所记载的发泡树脂芯材复合板的连结结构，在连结最初可能是稳固的连结。然而，在这样的结构中，因螺栓的拧入，在向芯材层侧伸出的圆筒状部件的主体部或者碟形弹簧与表背面的金属板之间、多个碟形弹簧的层之间，芯材的发泡树脂进入螺栓的连结力发挥作用的区域。已进入的热膨胀系数大的上述发泡树脂因气温差、来自发动机的热量等而产生的冷热循环所导致的膨胀、收缩的反复、车辆的振动等而缓缓地脱出，因此，存在螺栓的连结力随时间经过而降低的问题。另外，该连结结构还存在无法应用于简便的由电阻焊接进行的连结中。
因此，本发明的课题在于提供一种发泡树脂芯材复合板的连结结构，该发泡树脂芯材复合板的连结结构能够应用于螺栓连结与电阻焊接中的任一种连结，且能够长期维持与对象部件的稳固的连结。
用于解决课题的手段
为了解决所述的课题，本发明采用如下结构，发泡树脂芯材复合板的连结结构将在金属板之间夹入层叠发泡树脂的芯材而成的发泡树脂芯材复合板与对象部件连结，其特征在于，在所述发泡树脂芯材复合板的连结部设置有贯通孔和挤压周缘部，该挤压周缘部通过在该贯通孔的周围挤压所述发泡树脂的芯材而成，通过利用铆接或者焊接将嵌合插入于所述贯通孔的金属制的连结部件与所述挤压周缘部结合，而将所述连结部件与所述对象部件连结。
即，利用铆接或者焊接将嵌合插入于贯通孔的金属制的连结部件与挤压周缘部结合，将连结部件与对象部件连结，从而，利用铆接或者焊接将金属制的连结部件稳固地结合于发泡树脂芯材复合板的连结部。由此，能够适用螺栓连结与电阻焊接中的任一种连结，能够长期维持与对象部件的稳固的连结。
所述发泡树脂芯材复合板的连结结构也可以构成为，所述连结部件具有在圆筒部的一端侧设置有台座部的带台座的圆筒形状，在所述挤压周缘部设置有从所述贯通孔的周缘立起的筒状的纵壁部，将所述连结部件的圆筒部从所述纵壁部的基端侧嵌合插入于所述贯通孔中，将所述台座部压抵于所述挤压周缘部，以对从所述纵壁部的前端侧突出的所述圆筒部的前端侧进行按压扩展的方式，将所述连结部件铆接于所述纵壁部的前端侧。
也可以是，以使孔眼状部件的孔眼与所述贯通孔对合的方式将所述孔眼状部件覆盖在所述纵壁部的外侧，所述圆筒部的前端侧借助所述孔眼状部件铆接于所述纵壁部的前端侧。由此，能够利用圆筒部与孔眼状部件夹持纵壁部，能够将连结部件更稳固地结合。
所述发泡树脂芯材复合板的连结结构也可以构成为，所述连结部件具有在帽状部的下端具备凸缘部的帽形，将所述凸缘部在所述贯通孔的周缘部压抵于一方的所述金属板的外表面侧，以将嵌合插入于所述贯通孔中的所述帽状部向另一方的所述金属板的外表面侧按压扩展成扁平形状的方式，与所述贯通孔的周缘部的所述发泡树脂的芯材一起对所述帽状部进行挤压，从而，利用按压扩展成所述扁平形状的帽状部和所述凸缘部夹持所述挤压周缘部的表背面的所述金属板，并且，进行夹持的所述帽状部和所述凸缘部被焊接于所述挤压周缘部的表背面的所述金属板。
所述发泡树脂芯材复合板的连结结构也可以构成为，所述连结部件具有碟形，该碟形的连结部件具备在底部的周围向外周侧扩展的倾斜壁部，将所述碟形的连结部件嵌合插入于所述贯通孔中，以将所述倾斜壁部向所述金属板之间的发泡树脂侧按压扩展成扁平形状的方式，将所述碟形的连结部件与所述贯通孔的周缘部的所述发泡树脂的芯材一起进行挤压，从而，按压扩展成所述扁平形状的倾斜壁部被所述挤压周缘部的表背面的所述金属板夹持，并且，该被夹持的所述倾斜壁部被焊接于所述挤压周缘部的表背面的所述金属板。
通过在所述发泡树脂芯材复合板的所述连结部的外周侧形成台阶部，能够提高连结部附近的刚性。
在所述发泡树脂以未发泡的状态形成所述台阶部之后使所述发泡树脂发泡，由此能够容易地利用冲压成形等形成台阶部，也不存在成形时，台阶部的发泡树脂被挤压的情况。
发明效果
本发明的发泡树脂芯材复合板的连结结构中，在发泡树脂芯材复合板的连结部设置有贯通孔和挤压周缘部，该挤压周缘部通过在该贯通孔的周围挤压发泡树脂的芯材而成，利用铆接或者焊接将嵌合插入于贯通孔的金属制的连结部件与挤压周缘部结合，并将连结部件与对象部件连结，因此，能够应用螺栓连结与电阻焊接中的任一种连结，能够维持与对象部件的稳固的连结。
附图说明
图1是表示第一实施方式的发泡树脂芯材复合板的连结结构的纵剖视图。
图2(a)、(b)是表示在图1的发泡树脂芯材复合板形成台阶部的过程的剖视图。
图3(a)～(d)是表示形成图1的连结结构的过程的剖视图。
图4是表示第二实施方式的发泡树脂芯材复合板的连结结构的纵剖视图。
图5(a)、(b)是表示形成图4的连结结构的过程的剖视图。
图6是表示第三实施方式的发泡树脂芯材复合板的连结结构的纵剖视图。
图7是表示图6的连结部件的外观立体图。
图8(a)、(b)是表示形成图6的连结结构的过程的剖视图。
具体实施方式
以下，根据附图对本发明的实施方式进行说明。图1、图2(a)、(b)、图3(a)、(b)、(c)、(d)表示第一实施方式。如图1所示，发泡树脂芯材复合板1通过在钢板或者铝板的表背面的金属板1a、1b之间夹入层叠聚烯烃类树脂的发泡树脂1c的芯材而形成。在该发泡树脂芯材复合板1的连结部设置有贯通孔2以及挤压周缘部3a，该挤压周缘部3a通过挤压贯通孔2的周围的发泡树脂1c而形成。在挤压周缘部3a设置有从贯通孔2的周边立起的筒状的纵壁部4。在圆筒部11a的一端侧设置有台座部11b的金属制的连结部件11从纵壁部4的基端侧向贯通孔2嵌合插入，以便将台座部11b按压在挤压周缘部3a。在纵壁部4的外侧覆盖有孔眼状部件12，孔眼状部件12的孔眼与贯通孔2对合。连结部件11以对从纵壁部4的前端侧突出的圆筒部11a的前端侧进行按压扩展的方式借助孔眼状部件12铆接在纵壁部4的前端侧，从而与发泡树脂芯材复合板1的连结部稳固地结合。通过向贯通的圆筒部11a嵌合插入螺栓13，利用螺母14紧固连结部件11与对象部件A，由此对连结部件11与对象部件A进行螺栓连结。在发泡树脂芯材复合板1的连结部的外周侧形成有用于提高连结部附近的刚性的台阶部5。
图2表示形成所述发泡树脂芯材复合板1的台阶部5的过程。首先，如图2(a)所示，发泡树脂1c以未发泡的状态形成台阶部5。此后，如图2(b)所示，通过对形成有台阶部5的发泡树脂芯材复合板1进行加热来使发泡树脂1c发泡。因此，能够利用冲压成形等容易地形成台阶部5，也不存在成形时台阶部5的发泡树脂1c被压扁的情况。
图3(a)～(d)表示形成第一实施方式的连结结构的过程。首先，如图3(a)所示，利用冲压加工在发泡树脂芯材复合板1的连结部的周围形成挤压发泡树脂1c而形成的挤压部3。然后，如图3(b)所示，通过在挤压部3的中央的连结部穿设贯通孔2，由此，在穿设有贯通孔2的挤压周缘部3a形成从贯通孔2的周缘立起的筒状的纵壁部4。
此后，如图3(c)所示，从纵壁部4的基端侧嵌合插入连结部件11的圆筒部11a，台座部11b被压抵于挤压周缘部3a。此外，在纵壁部4的前端面与外周面的外侧覆盖孔眼状部件12。然后，如图3(d)所示，以对从纵壁部4的前端侧突出的圆筒部11a的前端侧进行按压扩展的方式，将连结部件11借助孔眼状部件12铆接在纵壁部4的前端侧。最后，如图1所示，利用嵌合插入圆筒部11a的螺栓13以及螺母14夹紧连结部件11与对象部件A，由此，对象部件A被螺栓连结在连结部件11上。
在所述的第一实施方式中，利用螺栓连结使连结部件11与对象部件A连结。然而，根据连结部件11的台座部11b封闭圆筒部11a的一端侧的结构，也能够通过电阻焊接来连结该台座部11b与对象部件A。
图4以及图5(a)、(b)表示第二实施方式。在该发泡树脂芯材复合板的连结结构中，如图4所示，使用在帽状部15a的下端具有凸缘部15b的帽形的金属制连结部件15。在与第一实施方式相同的发泡树脂芯材复合板1的连结部设置有贯通孔2。连结部件15的帽状部15a嵌合插入贯通孔2，凸缘部15b在贯通孔2的周围被压抵于背侧的金属板1b的下表面侧。以将嵌合插入的帽状部15a向表侧的金属板1a的上表面侧按压扩展成扁平形状的方式，将连结部件15与贯通孔2的周围的发泡树脂1c的芯材一同挤压。由此，按压扩展成扁平形状的帽状部15a与凸缘部15b对发泡树脂1c被挤压后的贯通孔2周围的挤压周缘部3a的表背面的金属板1a、1b进行夹持，并通过电阻焊接16a与金属板1a、1b稳固地结合。对象部件A利用电阻焊接17a连结在封闭贯通孔2的帽状部15a的顶部。虽省略图示，与第一实施方式相同，在发泡树脂芯材复合板1的连结部的外周侧形成用于提高刚性的台阶部。
图5(a)、(b)表示形成第二实施方式的连结结构的过程。首先，如图5(a)所示，连结部件15的帽状部15a从下方嵌合插入在发泡树脂芯材复合板1的连结部设置的贯通孔2中。在贯通孔2的周缘部将凸缘部15b压抵于背侧的金属板1b的下表面侧，连结部件15安装在冲头21与模具22之间。冲头21是平冲头。在模具22的与金属板1b抵接的模具面上，形成有嵌入帽状部15a的圆形的凸部22a、以及供凸缘部15b嵌入的环状的凹部22b。
此后，如图5(b)所示，冲头21下降至帽状部15a的顶部与模具22的凸部22a接触的位置。以将帽状部15a向表侧的金属板1a的上表面侧按压扩展成扁平形状的方式，将冲头21与贯通孔2的周围的发泡树脂1c一起挤压。发泡树脂1c被挤压后的挤压周缘部3a的表背面的金属板1a、1b被按压扩展成扁平形状的帽状部15a与凸缘部15b夹持。最后，如图4所示，按压扩展后的帽状部15a与凸缘部15b通过电阻焊接16a与表背面的金属板1a、1b结合，对象部件A利用电阻焊接17a被连结在帽状部15a的顶部。需要说明的是，发泡树脂芯材复合板1的表背面的金属板1a、1b是铝合金板的情况下，能够通过利用镀铝钢板形成金属制的连结部件15来提高与铝合金板的金属板1a、1b的焊接强度。另外，由于连结部件15的表面镀层是热反射率高的铝，因此，也能够期待防止连结部件15吸收热射线所导致的向发泡树脂1c的热传导。
图6、图7以及图8(a)、(b)表示第三实施方式。如图6所示，在该发泡树脂芯材复合板的连结结构中，使用具有在底部18a的周围向外周侧扩展的倾斜壁部18b的碟形的金属制连结部件18。在与第一实施方式相同的发泡树脂芯材复合板1的连结部设置贯通孔2，连结部件18向贯通孔2嵌合插入。以将倾斜壁部18b向表背面的金属板1a、1b之间的发泡树脂1c侧按压扩展成扁平形状的方式，将倾斜壁部18b与贯通孔2的周围的发泡树脂1c一起挤压。倾斜壁部18b利用电阻焊接16b与表背面的金属板1a、1b稳固地结合，该倾斜壁部18b以被夹持在发泡树脂1c被挤压后的贯通孔2的周围的挤压周缘部3a的金属板1a、1b之间的方式被按压扩展。对象部件A利用电阻焊接17b被连结于连结部件18的底部18a。虽省略图示，但与第一实施方式相同，在发泡树脂芯材复合板1的连结部的外周侧形成有用于提高刚性的台阶部。
图7表示所述碟形的连结部件18。在倾斜壁部18b上，为了使朝向挤压周缘部3a的金属板1a、1b之间的按压扩展变形变容易，在外周侧设置有不存在斜率的平坦部18c，并且开设多个从外周侧起的多个切口18d。需要说明的是，该连结部件18也能够以重叠多个的方式使用。
图8(a)、(b)表示形成第三实施方式的连结结构的过程。首先，如图8(a)所示，向设置于发泡树脂芯材复合板1的连结部的贯通孔2嵌合插入碟形的连结部件18，且安装在冲头23与模具24之间。在冲头23设置有与连结部件18抵接的圆形的阶梯部23a，在模具24设置有承载连结部件18的圆形的阶梯部24a。各个阶梯部23a、24a的高度形成为与表背面的金属板1a、1b的厚度大致相等。
此后，如图8(b)所示，冲头23下降。冲头23在各阶梯部23a、24a之间挤压连结部件18的倾斜壁部18b，将该倾斜壁部18b向表背面的金属板1a、1b之间的发泡树脂1c侧按压扩展成扁平形状。另外，冲头23在各阶梯部23a、24a的外周侧的冲头23与模具24之间挤压贯通孔2的周围的发泡树脂1c。在发泡树脂1c被挤压后的挤压周缘部3a的表背面的金属板1a、1b之间夹持按压扩展后的倾斜壁部18b。最后，如图6所示，通过利用电阻焊接16b将按压扩展后的倾斜壁部18b结合于表背面的金属板1a、1b，从而对象部件A通过电阻焊接17b连结于连结部件18的底部18a。
在上述的第二以及第三实施方式中，利用电阻焊接连结对象部件A，但连结部件15、19与对象部件A也能够利用螺栓连结来进行连结。
在上述的各实施方式中，金属制的连结部件形成为带台座的圆筒状、帽形或者碟形，但不限定于所述的各实施方式。连结部件只要能够利用铆接或者焊接与发泡树脂芯材复合板的挤压周缘部稳固地结合即可。
在上述的各实施方式中，发泡树脂芯材复合板的表背面的金属板是钢板或者铝板，但表背面的金属板也可以是镀铝钢板、其他表面处理钢板、表面处理铝合金板等其他金属板。另外，金属制连结部件也能够利用镀铝钢板、其他表面处理钢板、铝合金板、表面处理铝合金板等形成。
以上，说明了本发明的各实施方式，但本发明不限定于上述的实施方式，只要在权利要求书所记载的范围内，能够进行各种变更而实施。本申请基于2012年2月27日申请的日本专利申请(特愿2012-040183)，作为参照，在此引用其内容。
符号说明
1：发泡树脂芯材复合板
1a、1b：金属板
1c：发泡树脂
2：贯通孔
3：挤压部
3a：挤压周缘部
4：纵壁部
5：台阶部
11：连结部件
11a：圆筒部
11b：台座部
12：孔眼状部件
13：螺栓

Claims (7)

1.一种发泡树脂芯材复合板的连结结构，其将在金属板之间夹入层叠发泡树脂的芯材而成的发泡树脂芯材复合板与对象部件连结，其特征在于，
在所述发泡树脂芯材复合板的连结部设置有贯通孔和挤压周缘部，该挤压周缘部通过在该贯通孔的周围挤压所述发泡树脂的芯材而成，
通过利用铆接或者焊接将嵌合插入于所述贯通孔的金属制的连结部件与所述挤压周缘部结合，而将所述连结部件与所述对象部件连结。
2.根据权利要求1所述的发泡树脂芯材复合板的连结结构，其中，
所述连结部件具有在圆筒部的一端侧设置有台座部的带台座的圆筒形状，
在所述挤压周缘部设置有从所述贯通孔的周缘立起的筒状的纵壁部，
将所述连结部件的圆筒部从所述纵壁部的基端侧嵌合插入于所述贯通孔中，将所述台座部压抵于所述挤压周缘部，以对从所述纵壁部的前端侧突出的所述圆筒部的前端侧进行按压扩展的方式，将所述连结部件铆接于所述纵壁部的前端侧。
3.根据权利要求2所述的发泡树脂芯材复合板的连结结构，其中，
以使孔眼状部件的孔眼与所述贯通孔对合的方式将所述孔眼状部件覆盖在所述纵壁部的外侧，
所述圆筒部的前端侧借助所述孔眼状部件铆接于所述纵壁部的前端侧。
4.根据权利要求1所述的发泡树脂芯材复合板的连结结构，其中，
所述连结部件具有在帽状部的下端具备凸缘部的帽形，
将所述凸缘部在所述贯通孔的周缘部压抵于一方的所述金属板的外表面侧，以将嵌合插入于所述贯通孔中的所述帽状部向另一方的所述金属板的外表面侧按压扩展成扁平形状的方式，与所述贯通孔的周缘部的所述发泡树脂的芯材一起对所述帽状部进行挤压，从而，利用按压扩展成所述扁平形状的帽状部和所述凸缘部夹持所述挤压周缘部的表背面的所述金属板，并且，进行夹持的所述帽状部和所述凸缘部被焊接于所述挤压周缘部的表背面的所述金属板。
5.根据权利要求1所述的发泡树脂芯材复合板的连结结构，其中，
所述连结部件具有碟形，该碟形的连结部件具备在底部的周围向外周侧扩展的倾斜壁部，
将所述碟形的连结部件嵌合插入于所述贯通孔，以将所述倾斜壁部向所述金属板之间的发泡树脂侧按压扩展成扁平形状的方式，将所述碟形的连结部件与所述贯通孔的周缘部的所述发泡树脂的芯材一起进行挤压，从而，按压扩展成所述扁平形状的倾斜壁部被所述挤压周缘部的表背面的所述金属板夹持，并且，该被夹持的所述倾斜壁部被焊接于所述挤压周缘部的表背面的所述金属板。
6.根据权利要求1～5中任一项所述的发泡树脂芯材复合板的连结结构，其中，
在所述发泡树脂芯材复合板的所述连结部的外周侧形成有台阶部。
7.根据权利要求6所述的发泡树脂芯材复合板的连结结构，其中，
在所述发泡树脂以未发泡的状态形成所述台阶部之后使所述发泡树脂发泡。
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