JPH0466414U

JPH0466414U -

Info

Publication number: JPH0466414U
Application number: JP10901590U
Authority: JP
Priority date: 1990-10-19
Filing date: 1990-10-19
Publication date: 1992-06-11

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る合成樹脂製部材へのボル
ト取付構造の一実施例を示す断面図、第２図はボ
ルト圧入前におけるボルト埋込用凹部の断面図、
第３図は合成樹脂製部材へのボルト取付構造の従
来例を示す断面図、第４図はボルト圧入前におけ
るボルト埋込用凹部の断面図である。１……合成樹脂製部材、２……ボルト埋込用凹
部、２Ａ……大径穴部、２Ｂ……小径穴部、３…
…ボルト、４……圧入部、５……雄螺子部、６…
…固定部材、７……挿通孔、８……ナツト、９…
…鍔部、１０……空気抜き穴、Ａ……段差部。 FIG. 1 is a cross-sectional view showing an embodiment of the bolt attachment structure to a synthetic resin member according to the present invention, FIG. 2 is a cross-sectional view of a recess for bolt embedding before press-fitting the bolt,
FIG. 3 is a sectional view showing a conventional example of a structure for attaching a bolt to a synthetic resin member, and FIG. 4 is a sectional view of a recess for embedding the bolt before the bolt is press-fitted. 1... Synthetic resin member, 2... Bolt embedding recess, 2A... Large diameter hole, 2B... Small diameter hole, 3...
...Bolt, 4...Press-fitting part, 5...Male thread part, 6...
...fixing member, 7...insertion hole, 8...nut, 9...
...Brim part, 10...Air vent hole, A...Step part.

Claims

【実用新案登録請求の範囲】圧入部、鍔部および雄螺子部を一体に有するボ
ルトの前記圧入部を、合成樹脂製部材に設けたボ
ルト埋込用凹部内に熱圧入する合成樹脂製部材へ
のボルト取付構造において、前記ボルト埋込用凹部は、前記圧入部の長さよ
り深い段付き穴で構成されることにより、凹部開
口側に設けられ前記圧入部の外径と略等しいか若
干小さい穴径を有すると共に深さが圧入部の長さ
より浅い大径穴部と、この大径穴部の奥方に連通
して設けられ大径穴部より小さい穴径を有する小
径穴部とからなり、この小径穴部と大径穴部との
段差部が圧入時の溶け代部を形成し、また凹部底
面には合成樹脂製部材の内部に連通する空気抜き
穴が形成されていることを特徴とする合成樹脂製
部材へのボルト取付構造。[Scope of Claim for Utility Model Registration] A synthetic resin member in which the press-fit portion of a bolt integrally having a press-fit portion, a flange portion, and a male thread portion is heat-press-fitted into a bolt embedding recess provided in a synthetic resin member. In the bolt mounting structure, the bolt embedding recess is configured with a stepped hole that is deeper than the length of the press-fitting part, so that the hole provided on the opening side of the recess is approximately equal to or slightly smaller than the outer diameter of the press-fitting part. It consists of a large-diameter hole portion having a diameter and a depth shallower than the length of the press-fitting portion, and a small-diameter hole portion communicating with the back of the large-diameter hole portion and having a smaller hole diameter than the large-diameter hole portion. A composite material characterized in that the step between the small-diameter hole and the large-diameter hole forms a melting margin during press-fitting, and an air vent hole communicating with the inside of the synthetic resin member is formed at the bottom of the recess. Bolt attachment structure to resin parts.