To provide a thermal caulking structure capable of setting a thickness of a head of a pin formed after thermal caulking to be smaller than a conventional structure.SOLUTION: A thermal caulking structure includes a first member 140, a pin part 142 which projects from the first member and has a resin-made portion on a tip side, a second member 130 having an insertion hole 132a to which the pin part is inserted, and a head 144 that is formed on the tip side of the pin part projecting from the through hole and of which the resin-made portion is enlarged in a radial direction by thermal caulking, in which in the thermal caulking structure such that the first member is fixed to the second member, an extension hole 132b which is connected from the periphery of the through hole and extends to the radial direction, and a peripheral groove 143 which is recessed in the periphery of a root of the pin part and communicates with the extension hole, the extension hole and the peripheral groove are filled with the resin-made portion of the pin part melted in thermal caulking.SELECTED DRAWING: Figure 5
【課題】熱かしめ後に形成されるピンの頭部の厚みを、従来構造よりも小さく設定できる熱かしめ構造を提供する。【解決手段】第1部材140と、第1部材より突出し、先端側に樹脂製部分を有するピン部142と、ピン部が挿通される貫通孔132aを有する第2部材130と、貫通孔から突出したピン部の先端側に形成され樹脂製部分が熱かしめによって径方向に拡大されて構成された頭部144と、を備え、頭部によって、第1部材が第2部材に固定される熱かしめ構造において、貫通孔の周囲から繋がって、径方向に延びる延長孔132bと、ピン部の付け根の周囲でへこみ、延長孔と連通する周溝143と、が設けられており、熱かしめ時に溶融したピン部の樹脂製部分が、延長孔および周溝に充填されている。【選択図】図5
THERMAL CAULKING STRUCTURE
熱かしめ構造
2019-07-11
Patent
Electronic Resource
Japanese
IPC: | B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
MANUFACTURING METHOD OF CAULKING STRUCTURE, AND CAULKING STRUCTURE
European Patent Office | 2019
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