Jayne impact tool |
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| 申请号 | US27479D | 申请日 | 1971-02-25 | 公开(公告)号 | USRE27479E | 公开(公告)日 | 1972-09-19 |
| 申请人 | 发明人 | ||||||
| 摘要 | AN IMPACT TOOL FOR LOSSENING AND BREAKING HOMOGENEOUS MATERIAL SUCH AS COMPACTED OR FROZEN EARTH, BLACK TOP AND CONCRETE. THE TOOL IS ADAPTED TO BE MOUNTED ON THE BOOM OF A BACKHOE OR THE LIKE, AND IT IS POWERED BY THE HYDRAULIC SYSTEM OF THE APPARATUS ON WHICH IT IS MOUNTED OR BY A SEPARATE SYSTEM. A TOOL ELEMENT, SUCH AS A HARDENED POINT, IS INTEGRAL WITH OR MOUNTED ON AN ANVIL ARRANGED FOR LIMITED LONGITUDINAL MOVEMENT IN A HOUSING. A HAMMER COACTING WITH THE ANVIL IS ENERGIZED VY A SPRING, PREFERABLY A PNEUMATIC SPRING. A HYDRAULIC CYLINDER MOVES THE HAMMER AGAINST THE SPRING, AND WHEN THE SPRING IS COMPRESSED IN DESIRED AMOUNT, THE PISTON ROD OF THE CYLINDER IS CAMMED AWAY FROM THE HAMMER, THEREBY PERMITTING THE SPRING TO DRIVE THE HAMMER, THEREBY PERMITTING THE SPRING TO DRIVE THE HAMMER WITH GREAT FORCE AGAINST THE ANVIL. THE TOOL IS ARRANGED SO THAT OPERATION THEREOF ACCURS ONLY WHEN THE TOOL ELEMENT OR POINT IS POSITIONED AGAINST THE WORK AND THE MOVABLE ANVIL HAS AN INWARD RELATION WITH ITS HOUSING, THEREBY PROVIDING A "DEAD MAN" CONTROL FEATURE. IN BASIC FORM THE TOOL HAS A SINGLE HAMMER AND A SINGLE CYLINDER. MODIFICATIONS OF THE BASIC TOOL CONTEMPLATE A DOUBLE CYLINDER, SINGLE HAMMER DEVICE WHICH INCREASES THE FREQUENCY OF OPERATION BY A FACTOR OF TWO, AND A DOUBLE CYLINDER, DOUBLE HAMMER DEVICE WHICH IN EFFECT IS THE COMBINATION OF TWO SINGLE HAMMER, SINGLE CYLINDER DEVICES IN A SINGLE TOOL. |
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| 权利要求 | |||||||
| 说明书全文 | |||||||
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