JPH01131035U

JPH01131035U -

Info

Publication number: JPH01131035U
Application number: JP2768288U
Authority: JP
Priority date: 1988-03-02
Filing date: 1988-03-02
Publication date: 1989-09-06
Anticipated expiration: 2003-03-02
Also published as: JPH0645070Y2

Description

[Brief explanation of the drawing]

第１図乃至第５図は本考案の第１実施例を示し
、第１図は第３図の―拡大断面図、第２図は
ドラムブレーキの正面図、第３図は同じく背面図
、第４図は第２図の―断面図、第５図は第４
図の―断面図、第６図及び第７図は第２実施
例を示し、第６図は要部拡大断面図、第７図は６
図の―断面図、第８図及び第９図は第３実施
例を示し、第８図はドラムブレーキの要部背面図
、第９図は第８図の―断面図である。１……ドラムブレーキ、２……バツクプレート
、２ｂ……環状凹部、２ｃ……外底壁、２ｄ……
内底壁、２ｅ……環状凹部２ｂの底壁、２ｆ……
ブリーザ孔、３……ブレーキドラム、４……シー
ル部材、５……ブレーキ室、６……ブレーキシユ
ー、１３……ドレンボルト、１４……ブリーザパ
イプ接続管、１４ａ……フランジ、１４ｂ……接
続口部、１５……ブリーザパイプ、１５ａ……接
続側の一端、１５ｂ……折曲部、１６……クラン
プ、１７……ガード部材となるコイル状のスプラ
ツシユガード。 1 to 5 show a first embodiment of the present invention, FIG. 1 is an enlarged sectional view of FIG. 3, FIG. 2 is a front view of the drum brake, and FIG. Figure 4 is a cross-sectional view of Figure 2, and Figure 5 is a cross-sectional view of Figure 4.
6 and 7 show the second embodiment, FIG. 6 is an enlarged sectional view of the main part, and FIG.
8 and 9 show the third embodiment, FIG. 8 is a rear view of the main part of the drum brake, and FIG. 9 is a sectional view of FIG. 8. 1... Drum brake, 2... Back plate, 2b... Annular recess, 2c... Outer bottom wall, 2d...
Inner bottom wall, 2e...Bottom wall of the annular recess 2b, 2f...
Breather hole, 3... Brake drum, 4... Seal member, 5... Brake chamber, 6... Brake shoe, 13... Drain bolt, 14... Breather pipe connection pipe, 14a... Flange, 14b... Connection port, 15...breather pipe, 15a...one end of the connection side, 15b...bending portion, 16...clamp, 17...coiled splash guard serving as a guard member.

補正昭６３．８．８図面の簡単な説明を次のように補正する。明細書第９頁最終行から第１０頁第１行の「第
５図は第４図の―断面図」を「第５図は第３
図の―断面図」と訂正する。Amendment August 8, 1983 The brief description of the drawing is amended as follows. From the last line of page 9 to the first line of page 10 of the specification, "Figure 5 is a sectional view of Figure 4" is replaced with "Figure 5 is a cross-sectional view of Figure 3.
Correct it to ``cross-sectional view of the figure''.

Claims

[Scope of Claim for Utility Model Registration] 1. In a sealed drum brake for a vehicle in which a breather pipe for intake and exhaust is connected to a sealed brake chamber, a recessed portion recessed toward the brake chamber is formed in the back plate fixed to the vehicle body. A breather pipe connection structure for a sealed vehicle drum brake, characterized in that a breather pipe connection pipe for connecting the breather pipe is fixed to the bottom wall of the recess so as to communicate with the brake chamber. 2. The breather pipe connection structure for a sealed vehicle drum brake according to claim 1, wherein the vicinity of the connection between the breather pipe connection pipe and the breather pipe is covered with a guard member.