JPS61175621U - - Google Patents

Description

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

第１図はこの考案の一実施例によるスタータモ
ータの前端部断面図、第２図は第１図の要部拡大
図、第３図はキヤツプの正面図、第４図はこの考
案の異なる実施例によるスタータモータの後端部
断面図、第５図は従来の始動電動機（スタータモ
ータ）の軸受装置を示す断面図である。 １はフロントブラケツト、１ａは嵌着用孔、１
ｂはインロー部、２，１４はスリーブベアリング
、３はアマチユアシヤフト、９はキヤツプ、１０
は凹所、１１は突起、１３はリヤブラケツトであ
る。なお、図中同一符号は同一または相当部分を
示す。 Fig. 1 is a sectional view of the front end of a starter motor according to an embodiment of this invention, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is a front view of the cap, and Fig. 4 is a different embodiment of this invention. FIG. 5 is a sectional view of a rear end portion of a starter motor according to an example, and FIG. 5 is a sectional view showing a bearing device of a conventional starting motor (starter motor). 1 is the front bracket, 1a is the fitting hole, 1
b is the spigot part, 2 and 14 are the sleeve bearings, 3 is the armature shaft, 9 is the cap, 10
1 is a recess, 11 is a protrusion, and 13 is a rear bracket. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】 (1) 回転軸の軸端部を支承する軸受と、この軸
受の嵌着用孔を有する機枠と、この機枠の前記孔
にその開口側を塞ぐように嵌合されるキヤツプと
を有する回転軸の軸受装置において、前記キヤツ
プの外周に凹所を設け、前記キヤツプを前記孔の
開口側に嵌合した時に前記凹所により前記キヤツ
プの内外を連通する通気口が形成されるようにし
たことを特徴とする回転軸の軸受装置。 (2) 凹所を、キヤツプ外周に配設した多数の鋭
利な突起によりキヤツプ外周に多数設けた実用新
案登録請求の範囲第１項記載の回転軸の軸受装置
。 (3) キヤツプを金属板で成形した実用新案登録
請求の範囲第１項または第２項記載の回転軸の軸
受装置。[Scope of Claim for Utility Model Registration] (1) A bearing that supports the shaft end of a rotating shaft, a machine frame having a hole for fitting the bearing, and a machine frame that is fitted into the hole of the machine frame so as to close the opening side. A bearing device for a rotating shaft having a cap that is fitted with the cap, wherein a recess is provided on the outer periphery of the cap, and when the cap is fitted to the opening side of the hole, the vent hole communicates between the inside and outside of the cap through the recess. 1. A bearing device for a rotating shaft, characterized in that: (2) A bearing device for a rotating shaft according to claim 1, wherein a large number of recesses are provided on the outer periphery of the cap by a large number of sharp protrusions arranged on the outer periphery of the cap. (3) A bearing device for a rotating shaft according to claim 1 or 2 of the utility model registration claim, in which the cap is formed of a metal plate.