JPS57107942A - Brake equipment in hydraulic circuit - Google Patents
Brake equipment in hydraulic circuitInfo
- Publication number
- JPS57107942A JPS57107942A JP18411380A JP18411380A JPS57107942A JP S57107942 A JPS57107942 A JP S57107942A JP 18411380 A JP18411380 A JP 18411380A JP 18411380 A JP18411380 A JP 18411380A JP S57107942 A JPS57107942 A JP S57107942A
- Authority
- JP
- Japan
- Prior art keywords
- brake
- circuit
- nearly
- output
- signal
- 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
Landscapes
- Braking Systems And Boosters (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To provide easy braking operating by operation a brake when two conditions, under one of which a hydraulic motor is kept nearly resting and under the other a control lever of the hydraulic pump is nearly in neutral, are simultaneously filled.
CONSTITUTION: When a revolution speed of hydraulic motor 2 is reduced nearly to zero, a convertor 18 sends an approximately zero signal to a window comparator 19a. The comparator 19a feeds the (0) to an OR circuit 20. At this time, if a control lever 13 for controlling a pump 1 is in neutral, the lever 13 sends the approximately (0) signal to a window comparator 19b and resultantly, its output is turned to a (0). Thereby, an output signal of the OR circuit 20 becomes a (0) and a change-over valve 16 is switched into a position (b) to actuate a brake mechanism 10, so that a brake is applied. As the output of the OR circuit 20 is a (1) except the above mentioned condition, the change-over valve 16 is turned into a position (a). As a result, the brake operation of the brake mechanism 10 may be released.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18411380A JPS6030584B2 (en) | 1980-12-26 | 1980-12-26 | Hydraulic circuit brake device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18411380A JPS6030584B2 (en) | 1980-12-26 | 1980-12-26 | Hydraulic circuit brake device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57107942A true JPS57107942A (en) | 1982-07-05 |
JPS6030584B2 JPS6030584B2 (en) | 1985-07-17 |
Family
ID=16147608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18411380A Expired JPS6030584B2 (en) | 1980-12-26 | 1980-12-26 | Hydraulic circuit brake device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6030584B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011145684A1 (en) * | 2010-05-20 | 2011-11-24 | 株式会社小松製作所 | Construction machine |
-
1980
- 1980-12-26 JP JP18411380A patent/JPS6030584B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011145684A1 (en) * | 2010-05-20 | 2011-11-24 | 株式会社小松製作所 | Construction machine |
CN102791549A (en) * | 2010-05-20 | 2012-11-21 | 株式会社小松制作所 | Construction machine |
JP5143311B2 (en) * | 2010-05-20 | 2013-02-13 | 株式会社小松製作所 | Construction machinery |
US8615992B2 (en) | 2010-05-20 | 2013-12-31 | Komatsu Ltd. | Construction machine |
Also Published As
Publication number | Publication date |
---|---|
JPS6030584B2 (en) | 1985-07-17 |
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