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公开(公告)号：US3606558A
公开(公告)日：1971-09-20
申请号：US3606558D
申请日：1969-07-17
Applicant: BOSCH GMBH ROBERT
Inventor： DIETERLE HERBERT , HETTICH ALFRED , PAULE KURT , VOGEL EBERHARD , BURKLIN MAX
CPC classification number: B25H1/0042 , Y10T82/2574 , Y10T408/21 , Y10T408/65 , Y10T408/91
Abstract: A SUPPORT FOR PORTABLE DRILLING MACHINES COMPRISES A COLUMN EXTENDING UPWARDLY FROM A WORK SUPPORTING BASE, A CLAMP MOVABLE ALONG THE COLUMN, AN ARM MOVABLE ALONG THE COLUMN WITH REFERENCE TO THE CLAMP AND HAVING MEANS FOR HOLDING A DRILLING MACHINES SO THAT THE TIP OF THE DRILLING TOOL EXTENDS TOWARD THE BASE, AND A FEED DEPTH SELECTING DEVICE INCLUDING AN EXTERNALLY THREADED GAGE IN A VERTICAL BORE OF THE ARM AND A LOCKING BOLT HAVING THREADS WHICH NORMALLY MATE WITH THE THREADS OF THE GAGE. THE BOLT CAN BE DISENGAGED FROM THE GAGE IN RESPONSE TO APPLICATION OF FINGER PRESSURE AND THE GAGE ABUTS AGAINST THE CLAMP WHEN THE ARM MOVES THE MACHINE TO THE LOWERMOST POSITION IN WHICH A WORKPIECE MOUNTED ON THE BASE IS FORMED WITH A HOLE OF DESIRED DEPTH. A SCALE ON THE ARM COOPERATES WITH AN INDEX ON THE CLAMP TO INDICATE THE POSITION OF THE ARM WITH REFERENCE TO THE CLAMP.
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公开(公告)号：US3680642A
公开(公告)日：1972-08-01
申请号：US3680642D
申请日：1970-11-06
Applicant: BOSCH GMBH ROBERT
Inventor： KIRN MANFRED , HAHNER REINHARD , STROEZEL REINHOLD , HETTICH ALFRED , BURKLIN MAX
CPC classification number: B25D16/006 , B25D16/00 , B25D2211/064 , B25D2211/067 , Y10T74/18032
Abstract: A common manually operated member is provided in a drilling machines for selectively effecting percussion drilling and rotary drilling, and also rotation of the tool holder shaft at two different speeds during either operation. First and second control means, including cams, connect the manually operated member, such as a turnable knob or sleeve, with a striking mechanism by which the tool holder shaft can be reciprocated, and with a shiftable transmission.
Abstract translation: 在钻孔机中设有一个常用的手动操作的构件，用于选择性地进行冲击钻孔和旋转钻孔，以及在任一操作期间以两种不同的速度旋转工具架轴。 包括凸轮的第一和第二控制装置将诸如可转动的旋钮或套筒的手动操作构件与工具架轴可以往复运动的打击机构连接，并且具有可移动的传动装置。
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公开(公告)号：US3686957A
公开(公告)日：1972-08-29
申请号：US3686957D
申请日：1970-11-06
Applicant: BOSCH GMBH ROBERT
Inventor： KIRN MANFRED , HETTICH ALFRED , HAHNER REINHARD , STROEZEL REINHOLD , BURKLIN MAX
CPC classification number: B23B45/008 , Y10T74/1946
Abstract: The change speed transmission of a portable tool has a shaft carrying in radial or diametrical bores, spring-loaded coupling balls which, in two axially shifted positions of the shaft, project into inner recesses of one or the other of two drive gears rotating at different speeds on the shaft. The speed of the shaft can be selected by manually shifting the shaft in axial direction.
Abstract translation: 便携式工具的变速传动具有承载径向或径向孔的轴，弹簧加载的联接球，其在轴的两个轴向移动位置中突出到以不同的方式旋转的两个驱动齿轮中的一个或另一个的内凹槽 轴上的速度。 可以通过在轴向上手动地移动轴来选择轴的速度。
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