JPS6398454U

JPS6398454U -

Info

Publication number: JPS6398454U
Application number: JP19428086U
Authority: JP
Priority date: 1986-12-17
Filing date: 1986-12-17
Publication date: 1988-06-25

Description

[Brief explanation of the drawing]

第１図は本考案に基づくスロツトル軸の軸受構
造を有するスロツトルボデイの縦断面図である。
第２図は第１図の一部を拡大して示す説明図であ
る。第３図は第１図の別の一部を拡大して示す説
明図である。１……ボデイ本体、１ａ，１ｂ……筒状部、２
……吸気道、３……スロツトル軸、３ａ，３ｂ…
…段付部、４……スロツトルバルブ、５，６……
軸支孔、７，８……ボールベアリング、７ａ，８
ａ……インナレース、７ｂ，８ｂ……アウタレー
ス、９……カラー、１０……ばね保持部材、１１
……ワツシヤ、１２……ナツト、１３……肩面、
１４……捩りコイルばね、１５……係合部、１６
……ワツシヤ、１７……スロツトル開度センサ、
１７ａ……アーム、１８……突片、１９……カラ
ー、２０……ガイド部材、２１……スロツトルレ
バー、２２……カラー、２３……ワツシヤ、２４
……スプリングワツシヤ、２５……ナツト、２６
……肩面、２７……軸受、２８……スリーブ、２
９……アーム、２９ａ……遊端、２９ｂ……延長
部、３０……リンク、３１……突片、３２……捩
りコイルばね、３３……突部、３４……捩りコイ
ルばね、３５……係合部、３６……リツプシール
、３７，３８……ワツシヤ、４０……環状心金、
４１……パツキン、４１ａ……リツプ。 FIG. 1 is a longitudinal sectional view of a throttle body having a throttle shaft bearing structure according to the present invention.
FIG. 2 is an explanatory diagram showing a part of FIG. 1 in an enlarged manner. FIG. 3 is an explanatory diagram showing another part of FIG. 1 in an enlarged manner. 1...Body main body, 1a, 1b...Cylindrical part, 2
...Intake path, 3...Throttle shaft, 3a, 3b...
...Stepped part, 4... Throttle valve, 5, 6...
Pivot hole, 7, 8...Ball bearing, 7a, 8
a... Inner lace, 7b, 8b... Outer lace, 9... Collar, 10... Spring holding member, 11
...Washiya, 12...Natsuto, 13...Shoulder surface,
14...Torsion coil spring, 15...Engaging portion, 16
... Washer, 17... Throttle opening sensor,
17a... Arm, 18... Projection piece, 19... Collar, 20... Guide member, 21... Throttle lever, 22... Collar, 23... Washer, 24
...Springwashia, 25...Natsuto, 26
... Shoulder surface, 27 ... Bearing, 28 ... Sleeve, 2
9...Arm, 29a...Free end, 29b...Extension portion, 30...Link, 31...Protrusion piece, 32...Torsion coil spring, 33...Protrusion, 34...Torsion coil spring, 35... ...Engaging portion, 36... Lip seal, 37, 38... Washer, 40... Annular mandrel,
41...Patsukin, 41a...Lip.

Claims

[Scope of Claim for Utility Model Registration] (1) A bearing structure for a throttle shaft that supports a throttle valve in a throttle body for adjusting the intake flow rate of an internal combustion engine, which body body defines an intake passage; a shaft support hole provided at a diagonal position with respect to the intake passage of the body main body; a rolling bearing rotatably supporting the throttle shaft within the shaft support hole; and a rolling bearing rotatably supporting the throttle shaft within the shaft support hole. A throttle shaft characterized in that an elastic member that is in close contact with the inner peripheral surface of the shaft support hole and the outer peripheral surface of the throttle shaft and that exerts a force in a centripetal direction on the throttle shaft is interposed over the entire circumference. Bearing structure. (2) The throttle shaft bearing structure according to claim 1, wherein the elastic member seals the intake passage from the outside in the shaft support hole. (3) The throttle shaft according to claim 1 or 2, wherein the elastic member is an annular mandrel made of a hard material and an elastomer material wrapped around it. Bearing structure.