JPS587937U

JPS587937U - brake drum

Info

Publication number: JPS587937U
Application number: JP10173381U
Authority: JP
Inventors: 吉井　紀行
Original assignee: 富士重工業株式会社
Priority date: 1981-07-08
Filing date: 1981-07-08
Publication date: 1983-01-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例を示すもので、イ図は一
半断面図、日間はイ図のブレーキドラム端面部の部分正
面図である。第２図は本考案の第２の実施例を示すブレ
ーキドラム端面部の一半正面図である。、　　　１・・・ブレーキドラム、１ａ・・・端一面部
、２・・・取付穴、３・・・ハブボルト、４・・・ホイ
ールディスク、５　　　　′・・・接合面、５ａ・・・
当り面、６・・・ハブボルト挿込穴、７・・・ハブナツ
ト、８・・・長溝、９・・・凸起面。Fig. 1 shows a first embodiment of the present invention, in which Fig. A is a half sectional view, and Fig. 1 is a partial front view of the end face of the brake drum shown in Fig. A. FIG. 2 is a half front view of a brake drum end face showing a second embodiment of the present invention. , 1...Brake drum, 1a...One end surface, 2...Mounting hole, 3...Hub bolt, 4...Wheel disc, 5'...Joint surface, 5a...
Contact surface, 6... hub bolt insertion hole, 7... hub nut, 8... long groove, 9... convex surface.

Claims

[Scope of utility model registration request]

On the outer surface of the end face of the brake drum, there is a long groove shape that contacts the joint surface of the wheel disc that is joined to the peripheral edge of the hub bolt or hub nut mounting hole, only on the inner and outer peripheral sides across the above mounting hole. A brake drum characterized by forming a concave portion or a convex surface.