JPS6449731U

JPS6449731U -

Info

Publication number: JPS6449731U
Application number: JP14506487U
Authority: JP
Priority date: 1987-09-22
Filing date: 1987-09-22
Publication date: 1989-03-28

Description

[Brief explanation of the drawing]

第１図は本考案の原理図、第２図は本考案の一
実施例を示す正面図、第３図は第２図における平
面図、第４図は第２図におけるＢ−Ｂ断面図、第
５図は軸受をフレームの軸受抜止め穴に挿入する
前の構成図、第６図は軸受が抜止め状態になつた
時の構成図、第７図は第１図の従来例を示す斜視
図、第８図は第２の従来例を示す斜視図、第９図
は第３の従来例を示す斜視図、第１０図は第４の
従来例を示す斜視図である。第１図乃至第６図において、１１，２１は軸、
１１ａ，２１ｂはジヤーナル部、１２，２２は軸
受、１２ａ，２２ａは穴、１２ｂ，２２ｂはボス
部、１２ｃ，２２ｃはインナフランジ部、１２ｄ
，２２ｄはアウタフランジ部、１２ｅ，２２ｄは
アーム部、１３，２３は軸受抜止め穴、１３ａ，
２３ａは軸受穴部、１３ｂ，２３ｂはボス部挿入
部、１１，２１はフレーム、１５，２５は突起、
１６，２６は回転防止穴である。 Fig. 1 is a principle diagram of the present invention, Fig. 2 is a front view showing an embodiment of the invention, Fig. 3 is a plan view in Fig. 2, Fig. 4 is a sectional view taken along line B-B in Fig. 2, Figure 5 is a configuration diagram before inserting the bearing into the bearing retaining hole of the frame, Figure 6 is a configuration diagram when the bearing is in the retaining state, and Figure 7 is a perspective view of the conventional example shown in Figure 1. 8 is a perspective view showing a second conventional example, FIG. 9 is a perspective view showing a third conventional example, and FIG. 10 is a perspective view showing a fourth conventional example. In FIGS. 1 to 6, 11 and 21 are axes;
11a, 21b are journal parts, 12, 22 are bearings, 12a, 22a are holes, 12b, 22b are boss parts, 12c, 22c are inner flange parts, 12d
, 22d are outer flange parts, 12e, 22d are arm parts, 13, 23 are bearing retaining holes, 13a,
23a is a bearing hole, 13b, 23b is a boss insertion part, 11, 21 is a frame, 15, 25 is a protrusion,
16 and 26 are anti-rotation holes.

Claims

[Claims for Utility Model Registration] Hole 12 into which journal portion 11a of shaft 11 is fitted
a boss portion 12b having a hole formed therein and a notch surface provided on the cylindrical surface, an inner flange portion 12c provided at one end of the boss portion 12b, and an outer flange portion provided at the other end of the boss portion 12b. 12d and the arm portion 2 extending from the outer flange portion 12d.
a bearing hole 13a into which the boss portion 12b fits;
and a frame 14 having a bearing retaining hole 13 formed by a boss insertion portion 13b having a width narrower than the bearing hole 13a, and a projection 15 that fits when the bearing 12 is in the retaining state. A bearing mounting structure characterized in that a rotation prevention hole 16 is provided in the arm portion 12e of the bearing 12 and the frame 14.