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1. 发明专利

JP2620836B2 失效
公开(公告)号：JP2620836B2
公开(公告)日：1997-06-18
申请号：JP8926693
申请日：1993-03-23
IPC分类号： E02F9/00 , E21B1/00 , E21B1/30 , E21C3/24

2. 发明专利

JPH08158775A SUSPENSION TYPE ROCK DRILL DEVICE MOUNTED WITH MANUAL ROCK DRILL 失效
公开(公告)号：JPH08158775A
公开(公告)日：1996-06-18
申请号：JP33372294
申请日：1994-12-05
申请人： TAKEHARA FUJIO
发明人： TAKEHARA FUJIO
IPC分类号： E21B1/30 , E21B1/00 , E21C3/24
摘要： PURPOSE: To make it possible to execute drilling work with safety by installing a lift base to a guide rail pipe so as to mount a rock drill thereto and suspending and lifting up the machine by way of a wire drum with a head motor. CONSTITUTION: A main body, which is fixed with a bucket of a back hoe and provided with a motor 1 and a drum 2 is placed on a rock to be drilled. A base 4 mounted with a manual rock drill 5 is lowered by turning the drum 2 until the tip of a rod comes in contact with the rock. An air control lever is moved so as to feed an air of a compressor, thereby forcing the rod to strike by turning. Simultaneously, a lift lever is moved and gradually lowered in conformity with the speed of the drilled hole. When it reached a specified depth, the supply of the compressed air is halted so that the base 4 may be lifted up. Then, the rod is moved toward a next rock by using the back hoe. Before boring a hole by drilling, the mounted rock drill 5 falls spontaneously by a weight controlled by a control weight. More specifically, even if a wire is loosened by pressing the lift lever excessively, no hazard or the like will be produced. Furthermore, this construction makes it possible to separate the device by removing a mounting bolt after the operation is over and no work is required and then engage the back hoe with its original work directly.

3. 实用新型

JPS59160686U JPS59160686U - 失效
公开(公告)号：JPS59160686U
公开(公告)日：1984-10-27
申请号：JP4936183
申请日：1983-04-01
IPC分类号： B25D9/16 , E21B1/00 , E21B1/30 , E21C3/24

4. 实用新型

JPS54142303U 失效
公开(公告)号：JPS54142303U
公开(公告)日：1979-10-03
申请号：JP3738178
申请日：1978-03-25
IPC分类号： E02D17/13 , E02F5/02 , E21B1/00 , E21B1/30 , E21B6/00 , E21B6/02 , E21C3/24

5. 实用新型

JPS5053401U 失效
公开(公告)号：JPS5053401U
公开(公告)日：1975-05-22
申请号：JP11092773
申请日：1973-09-21
IPC分类号： B25D17/12 , B25D9/04 , E21C3/24

6. 发明专利

JPH06508406A 失效
公开(公告)号：JPH06508406A
公开(公告)日：1994-09-22
申请号：JP50463792
申请日：1992-02-20
IPC分类号： E21B1/00 , E21B1/30 , E21B4/14 , E21B4/16 , E21B7/28 , E21C3/24
摘要： A drill head is disclosed, for use to drill a hole in a front of hard material such as rock, which comprises a main body acting at a central support, an upwardly projecting spindle secured on top of the main body, the spindle having a vertical axis, a fixation head on top of the spindle for detachably connecting it to a drill shaft operable in use to rotate the drill head about the vertical axis of the spindle and to pull it up toward the front hard material to be drilled, and at least two impact hammers mounted onto the main body in such a manner as to fragment, in use the hard material of the front along at least one circular path centered onto the vertical axis, each impact hammer having a hollow casing, a pneumatically-operated, impact generating assembly enclosed within the casing, and a drill bit actuated by the impact-generating assembly. Advantageously, the hollow casings of the impact hammers are integral with the main body and form therewith a single structural piece, the central cavities of the hollow casings consisting of longitudinal holes made in this single piece and extending in directions substantially parallel to the vertical axis of a spindle at short distances from this axis.

7. 实用新型

JPH0329593U 失效
公开(公告)号：JPH0329593U
公开(公告)日：1991-03-25
申请号：JP8911289
申请日：1989-07-31
IPC分类号： B25D9/04 , B25D17/08 , B25D17/28 , E02D7/10 , E02D13/00 , E21B1/00 , E21B1/30 , E21B7/02 , E21B15/00 , E21B19/08 , E21C3/24 , E21C11/00

8. 实用新型

JPS5421601U 失效
公开(公告)号：JPS5421601U
公开(公告)日：1979-02-13
申请号：JP9493977
申请日：1977-07-15
IPC分类号： B25D11/12 , B25D9/02 , B25D17/26 , E21B1/00 , E21B1/30 , E21C3/24

9. 实用新型

JPS5277902U 失效
公开(公告)号：JPS5277902U
公开(公告)日：1977-06-10
申请号：JP16455575
申请日：1975-12-06
IPC分类号： B25D17/24 , E21C3/24

10. 实用新型

JPS5112403Y1 失效
公开(公告)号：JPS5112403Y1
公开(公告)日：1976-04-03
申请号：JP3124070
申请日：1970-04-01
IPC分类号： B25D11/12 , B25D9/14 , E21C3/24

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