JPS6412940U - - Google Patents
Info
- Publication number
- JPS6412940U JPS6412940U JP10331487U JP10331487U JPS6412940U JP S6412940 U JPS6412940 U JP S6412940U JP 10331487 U JP10331487 U JP 10331487U JP 10331487 U JP10331487 U JP 10331487U JP S6412940 U JPS6412940 U JP S6412940U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- piston
- freely
- drum
- pistons
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011888 foil Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Description
第１図は本考案のドラムブレーキ用ホイルシリ
ンダの実施例を示す断面図、第２図は別の実施例
を示す第１図のＡ部拡大断面図、第３図は本考案
のホイルシリンダが組み込まれるドラムブレーキ
の正面図、第４図は先に実用新案登録出願された
ドラムブレーキ用ホイルシリンダを示す断面図で
ある。
１：背板、２：シユー、３：ドラム、４：ライ
ニング、５：ホイルシリンダ、６：ロツド、６ａ
：二又部、７：ウエブ、８：給油管、９：枢支部
、１０：シリンダ、１１：第一のピストン、１１
ａ：内端部、１１ｂ：貫通孔、１２：多条螺子、
１３：一条螺子、１４：螺子筒、１５：調節片、
１５ａ：円錐凹部、１６：補助ピストン、１６ａ
：小径部、１６ｂ：大径部、１６ｃ：段部、１７
：ストツプリング、１８：ばね座、１９：圧縮ば
ね、２０：円錐突部、２１：ばね座、２１ａ：突
部、２２：圧縮ばね、２３：角孔、２４：第二の
ピストン、２４ａ：凹部、２５：雌螺子、２６：
螺子筒、２７：雄螺子、２８：駆動板、２９：第
一のフランジ部、３０：第二のフランジ部、３１
：空間、３２：リターンスプリング、３３：シー
ル材、３４：ストツパ、３５：プレート。
Fig. 1 is a sectional view showing an embodiment of the foil cylinder for drum brakes of the present invention, Fig. 2 is an enlarged sectional view of section A in Fig. 1 showing another embodiment, and Fig. 3 is a sectional view showing the foil cylinder of the present invention. FIG. 4 is a front view of the drum brake to be incorporated, and a sectional view showing a drum brake foil cylinder for which a utility model registration application was previously filed. 1: back plate, 2: shoe, 3: drum, 4: lining, 5: foil cylinder, 6: rod, 6a
: Forked part, 7: Web, 8: Oil supply pipe, 9: Pivotal part, 10: Cylinder, 11: First piston, 11
a: inner end, 11b: through hole, 12: multi-thread screw,
13: single thread screw, 14: screw tube, 15: adjustment piece,
15a: Conical recess, 16: Auxiliary piston, 16a
: Small diameter part, 16b: Large diameter part, 16c: Step part, 17
: Stop ring, 18: Spring seat, 19: Compression spring, 20: Conical projection, 21: Spring seat, 21a: Projection, 22: Compression spring, 23: Square hole, 24: Second piston, 24a: Recess, 25: female screw, 26:
Threaded tube, 27: Male screw, 28: Drive plate, 29: First flange portion, 30: Second flange portion, 31
: Space, 32: Return spring, 33: Seal material, 34: Stopper, 35: Plate.
Claims (1)
端が開口したシリンダの一端に、先端部外周面に
このシリンダの一端面と衝合自在な第一のフラン
ジ部を形成した第一のピストンを、上記シリンダ
の他端に、先端部外周面にこのシリンダの他端面
と衝合自在な第二のフランジ部を形成した第二の
ピストンを、それぞれ軸方向に亘る移動を自在と
して嵌合させ、シリンダの中間部内側で、第一、
第二の両ピストンの間に存在する空間内に圧油を
送り込み自在としたドラムブレーキ用ホイルシリ
ンダに於いて、シリンダの中間部内周面で第一、
第二の両ピストンの間に位置する部分に装着した
ストツパと、車輌の前進時に於けるドラムの回転
方向後側に位置する第一のピストンとの間に圧縮
ばねを設けた事を特徴とする、ドラムブレーキ用
ホイルシリンダ。 At one end of a cylinder which is fixed to a back plate constituting a drum brake and whose both ends are open, a first piston having a first flange portion formed on the outer peripheral surface of its tip portion that can freely abut against one end surface of the cylinder is attached. A second piston, which has a second flange formed on the outer circumferential surface of the tip portion and can freely abut against the other end surface of the cylinder, is fitted to the other end of the cylinder so that it can move freely in the axial direction. Inside the middle part, first,
In a drum brake foil cylinder in which pressure oil can be freely sent into the space existing between the two second pistons, the first,
A compression spring is provided between a stopper attached to a portion located between the second two pistons and the first piston located on the rear side in the direction of rotation of the drum when the vehicle moves forward. , foil cylinder for drum brakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10331487U JPH0354982Y2 (en) | 1987-07-07 | 1987-07-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10331487U JPH0354982Y2 (en) | 1987-07-07 | 1987-07-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6412940U true JPS6412940U (en) | 1989-01-24 |
| JPH0354982Y2 JPH0354982Y2 (en) | 1991-12-05 |
Family
ID=31334031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10331487U Expired JPH0354982Y2 (en) | 1987-07-07 | 1987-07-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0354982Y2 (en) |
-
1987
- 1987-07-07 JP JP10331487U patent/JPH0354982Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0354982Y2 (en) | 1991-12-05 |
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