JPH025373U - - Google Patents
Info
- Publication number
- JPH025373U JPH025373U JP8113988U JP8113988U JPH025373U JP H025373 U JPH025373 U JP H025373U JP 8113988 U JP8113988 U JP 8113988U JP 8113988 U JP8113988 U JP 8113988U JP H025373 U JPH025373 U JP H025373U
- Authority
- JP
- Japan
- Prior art keywords
- brake
- cylinder
- discharge port
- supply
- hydraulic
- 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
- 230000002265 prevention Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Arrangements (AREA)
Description
第１図は本考案の引摺り防止装置に組み込まれ
る差圧シリンダユニツトの実施例を示す断面図、
第２図は本考案の引摺り防止装置が組み込まれる
油圧ブレーキ装置の回路図、第３図はチエツク弁
の１例を示す断面図である。
１：油タンク、２：油圧ポンプ、３：フイルタ
、４：分流弁付アンロードリリーフ弁、５：アキ
ユムレータ、６：ブレーキ弁、７：ブレーキペダ
ル、８，９：ブレーキシリンダ、１０：制御弁、
１１：チエツク弁、１２：正圧弁、１３：圧縮ば
ね、１４：弁座、１５：負圧弁、１６：圧縮ばね
、１７：弁座、１８：差圧シリンダユニツト、１
９：シリンダ筒、２０：第一の給排口、２１：第
二の給排口、２２：ピストン、２３：蓋体、２４
：圧縮ばね、２５：シリンダ部、２６：貫通孔、
２７：通孔、２８：弁座、２９：弁座片、３０：
弁体、３１：圧縮ばね、３２：突出杆、３３：戻
し管。
FIG. 1 is a sectional view showing an embodiment of a differential pressure cylinder unit incorporated in the anti-dragging device of the present invention;
FIG. 2 is a circuit diagram of a hydraulic brake system incorporating the anti-dragging device of the present invention, and FIG. 3 is a sectional view showing an example of a check valve. 1: Oil tank, 2: Hydraulic pump, 3: Filter, 4: Unload relief valve with diversion valve, 5: Accumulator, 6: Brake valve, 7: Brake pedal, 8, 9: Brake cylinder, 10: Control valve,
11: Check valve, 12: Positive pressure valve, 13: Compression spring, 14: Valve seat, 15: Negative pressure valve, 16: Compression spring, 17: Valve seat, 18: Differential pressure cylinder unit, 1
9: Cylinder tube, 20: First supply/discharge port, 21: Second supply/discharge port, 22: Piston, 23: Lid, 24
: Compression spring, 25: Cylinder part, 26: Through hole,
27: Through hole, 28: Valve seat, 29: Valve seat piece, 30:
Valve body, 31: compression spring, 32: protruding rod, 33: return pipe.
Claims (1)
圧力を逃がす、チエツク弁を設けた油タンクと、
この油タンク内の油を吸い出し、圧力を上昇させ
た状態で送り出す油圧ポンプと、ブレーキペダル
の動きによつて流路を開閉し、この油圧ポンプか
ら送られる圧油のブレーキシリンダへの送り込み
、並びにこのブレーキシリンダと上記油タンクと
の連通を制御するブレーキ弁とから成る油圧ブレ
ーキに付設し、制動解除後にブレーキシリンダに
油圧が残留する事に伴なうブレーキシユーの引摺
りを防止する、油圧ブレーキの引摺り防止装置で
あつて、一端に第一の給排口を、他端に第二の給
排口を、それぞれ有するシリンダ内にピストンを
油密に嵌装し、このピストンを上記第一の給排口
側に押圧するばねを設けた差圧シリンダユニツト
を、上記ブレーキ弁とブレーキシリンダとの間に
、第一の給排口をブレーキ弁に、第二の給排口を
ブレーキシリンダに、それぞれ連通させた状態で
設けた、油圧ブレーキの引摺り防止装置。 An oil tank equipped with a check valve that releases internal pressure when the internal pressure rise exceeds a certain value,
A hydraulic pump sucks out the oil in the oil tank and sends it out under increased pressure, and the flow path is opened and closed by the movement of the brake pedal, and the pressure oil sent from this hydraulic pump is sent to the brake cylinder. The hydraulic brake is attached to a hydraulic brake consisting of a brake valve that controls communication between the brake cylinder and the oil tank, and prevents the brake shoe from dragging due to hydraulic pressure remaining in the brake cylinder after the brake is released. The brake drag prevention device includes a piston oil-tightly fitted into a cylinder having a first supply/discharge port at one end and a second supply/discharge port at the other end. A differential pressure cylinder unit equipped with a spring that presses the first supply/discharge port is placed between the brake valve and the brake cylinder, with the first supply/discharge port serving as the brake valve and the second supply/discharge port serving as the brake cylinder. A hydraulic brake anti-dragging device is provided in communication with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8113988U JPH0735808Y2 (en) | 1988-06-21 | 1988-06-21 | Hydraulic brake drag prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8113988U JPH0735808Y2 (en) | 1988-06-21 | 1988-06-21 | Hydraulic brake drag prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH025373U true JPH025373U (en) | 1990-01-12 |
| JPH0735808Y2 JPH0735808Y2 (en) | 1995-08-16 |
Family
ID=31305937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8113988U Expired - Lifetime JPH0735808Y2 (en) | 1988-06-21 | 1988-06-21 | Hydraulic brake drag prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735808Y2 (en) |
-
1988
- 1988-06-21 JP JP8113988U patent/JPH0735808Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0735808Y2 (en) | 1995-08-16 |