Remote controlled power brake |
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| 申请号 | US3685288D | 申请日 | 1970-08-13 | 公开(公告)号 | US3685288A | 公开(公告)日 | 1972-08-22 |
| 申请人 | ARMCO STEEL CORP; | 发明人 | CORDREY RICHARD N; | ||||
| 摘要 | Arrangement for amplifying power applied to a load member including a power system having spring means for moving a pivoted beam in one direction and a fluid system for moving the beam in the opposite direction. A lever, pivotally carried by the beam, is connected at one end to the load member. Manual control means are arranged to move the other end of the lever, which movement is effective to vary the pressure in the fluid system and thereby control movement of the pivoted lever. | ||||||
| 权利要求 | 1. A remote controlled power amplifying unit comprising: a. a pivotally mounted beam; b. a lever pivotally carried by said beam; c. means for connecting one end of said lever to a load; d. actuated means for moving the other end of said lever; e. pressure modulating valve means responsive to movement of said other end of said lever; and f. a power system connected to one end of said pivotally mounted beam, said power system having: i. spring means for moving said beam in one direction, and ii. a fluid system including said pressure modulating valve means opposing said spring means, whereby variations in pressure in said fluid system are effective to move said pivotally mounted beam in opposite directions, movement of said beam in one direction being effective via said lever to apply a force to said load. 2. The power amplifying unit claimed in claim 1, wherein said pressure modulating valve is mechanically actuated. 3. The power amplifying unit claimed in claim 1 including a volume booster relay valve responsive to said pressure modulating valve. 4. The power amplifying unit claimed in claim 1 wherein said lever includes a long arm and a short arm, said means for connecting one end of said lever to a load being associated with said short arm, said long arm having a portion extending between said pressure modulating valve and the pivot point for said beam. 5. The power amplifying unit claimed in claim 4 wherein said actuated means is operatively connected to said long arm of said lever. 6. The power amplifying unit claimed in claim 4 including spring means normally biasing said long arm. 7. The power amplifying unit claimed in claim 4 wherein said actuated means includes a manual control and an extendable hydraulic system responsive to said manual control, said extendable hydraulic system being connected to said long arm of said lever. 8. The power amplifying unit claimed in claim 1 including emergency valve means for exhausting the Pressure in said fluid system. 9. The power amplifying unit claimed in claim 1 wherein said lever includes a long arm and a short arm, said actuated means being operatively connected to said long arm and said means for connecting said lever to a load being associated with said short arm, said arms being annularly related whereby movement of said beam in said one direction to apply a force to said load tends to bias said lever in a direction opposed to the force applied by said manually actuated means. 10. The power amplifying unit claimed in claim 1 wherein said lever includes a long arm and a short arm, the included angle between said long arm and said short arm being less than 90* . 11. A remote controlled power brake comprising: a. a power system including: i. spring means for applying a force in one direction; ii. a fluid system opposing said spring means, and iii. means for varying the pressure in said fluid system whereby to selectively apply and remove said force; b. actuated means, said means for varying the pressure in said fluid system being operatively associated with and responsive to said actuated member; and c. means for applying said force to a load with proportional reproduction of force and motion, said means including a pivotally mounted beam for receiving said force from said power system, and a lever pivotally carried by said beam, one end of said lever being operatively connected to said load. |
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