JPH0423577U

JPH0423577U -

Info

Publication number: JPH0423577U
Application number: JP6491790U
Authority: JP
Priority date: 1990-06-21
Filing date: 1990-06-21
Publication date: 1992-02-26

Description

[Brief explanation of drawings]

第１図は本考案の第一実施例を示す要部拡大断
面図、第２図は本考案の第二実施例を示す要部拡
大断面図、第３図は手動式の伸縮ステアリングコ
ラム装置を組み込んだ、ステアリング装置の側面
図、第４〜５図は第一の先考案に係る電動式伸縮
ステアリングコラム装置を示しており、第４図は
要部断面図、第５図は第４図のＡ−Ａ断面図、第
６図は第二の先考案に係る電動式伸縮ステアリン
グコラム装置を示す要部拡大断面図である。１……調節レバー、２……アウターコラム、３
……インナーコラム、４……ステアリングコラム
、５……ステアリングシヤフト、６……支持ブラ
ケツト、７……衝撃吸収部材、８……アウターコ
ラム、９……アツパーコラム、１０……ロアーコ
ラム、１１……モータハウジング、１２……電動
モータ、１３……インナーコラム、１４……長孔
、１５……ガイドピン、１６……中空シヤフト、
１７……転がり軸受、１８……ステアリングシヤ
フト、１９……アツパーシヤフト、２０……ロア
ーシヤフト、２１……円筒部、２２……転がり軸
受、２３……ニードル軸受、２４……雌螺子部、
２５……雄螺子部、２６……円筒ブラケツト、２
７……鉄芯、２８……凹溝、２９……電機子巻線
、３０……整流子、３１……ブラシ、３２……板
ばね、３３……永久磁石、３４……太陽歯車、３
５……内歯車、３６……遊星軸、３７……遊星歯
車、３８……外方転動面、３９……抑え筒、４０
……内方転動面、４１……保持部、４２……転動
体、４３……トラクシヨンドライブ式減速機構、
４４……円孔、４５ａ，４５ｂ……外輪素子、４
６……円弧面、４７……転がり軸受、４８……ス
トツプリング、４９……板ばね、５０……内方転
動面。 Fig. 1 is an enlarged sectional view of the main part showing the first embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part showing the second embodiment of the invention, and Fig. 3 is a manual telescopic steering column device. 4 and 5 are side views of the incorporated steering device, and show the electric telescopic steering column device according to the first prior invention, FIG. 4 is a sectional view of the main part, and FIG. The AA sectional view and FIG. 6 are enlarged sectional views of essential parts showing the electric telescopic steering column device according to the second prior invention. 1...Adjustment lever, 2...Outer column, 3
... Inner column, 4 ... Steering column, 5 ... Steering shaft, 6 ... Support bracket, 7 ... Shock absorption member, 8 ... Outer column, 9 ... Upper column, 10 ... Lower column, 11 ... Motor housing, 12 ... Electric motor, 13 ... Inner column, 14 ... Long hole, 15 ... Guide pin, 16 ... Hollow shaft,
17...Rolling bearing, 18...Steering shaft, 19...Upper shaft, 20...Lower shaft, 21...Cylindrical portion, 22...Rolling bearing, 23...Needle bearing, 24...Female screw portion,
25...Male thread part, 26...Cylindrical bracket, 2
7... Iron core, 28... Concave groove, 29... Armature winding, 30... Commutator, 31... Brush, 32... Leaf spring, 33... Permanent magnet, 34... Sun gear, 3
5... Internal gear, 36... Planetary shaft, 37... Planetary gear, 38... Outer rolling surface, 39... Holding tube, 40
... Inner rolling surface, 41 ... Holding section, 42 ... Rolling element, 43 ... Traction drive type reduction mechanism,
44... Circular hole, 45a, 45b... Outer ring element, 4
6... Arc surface, 47... Rolling bearing, 48... Stop spring, 49... Leaf spring, 50... Inner rolling surface.

Claims

[Scope of utility model registration request]

a cylindrical outer column; an inner column inserted inside the outer column so as to be freely displaceable only in the axial direction; a hollow shaft supported inside the outer column so as to be freely rotatable; a steering shaft that is rotatably supported on the inside and inserted through the inside of the hollow shaft; a cylindrical bracket provided with a portion overlapping the inner column; and one of the inner column and the cylindrical bracket. a female screw portion concentric with the steering shaft, provided on a portion fixed to the other member of the inner column and the cylindrical bracket, and a male screw portion screwed with the female screw portion, provided on a portion fixed to the other member of the inner column and the cylindrical bracket. between a threaded portion, a cylindrical motor housing fixed to a portion of the outer column located around the hollow shaft, and an inner circumferential surface of the motor housing and an outer circumferential surface of the hollow shaft; an electric motor that is provided and can rotate the hollow shaft in both directions based on energization, and an outer rolling surface provided on the outer circumference of the end of the hollow shaft;
The outer column is engaged with an inner rolling surface provided on the inner circumference of the outer column and the cylindrical bracket, and is freely rolling while in contact with the outer rolling surface and the inner rolling surface, respectively. An electric telescopic steering column device consisting of multiple rolling elements.