Drill machine table

Details Drill machine table Drill machine table

1992-09-30

1994-09-27

Rada, Rinaldi I.

Tool driving or impacting

Means to drive tool about an axis

Gear drive

173149, 173217, B23Q 500, E21C 500

Patent

active

053500270

DESCRIPTION:

BRIEF SUMMARY
The invention relates to a drilling machine table for a mobile drilling appliance.


BACKGROUND

Drilling machine tables of this type are used in known mobile drilling appliances and serve for example for drilling holes in pile foundations.
Sometimes it would be desirable to produce a drill hole also in the immediate vicinity of an already existing building. This is not possible with the known drilling machine tables, since the stepping-down gear has a large diameter, so that then if the drilling machine table is moved close up to a building wall, the drilling axis is at a greater distance from this wall.


SUMMARY OF THE INVENTION

A drilling machine table according to the present invention provide that even drill holes in the immediate vicinity of a building wall can be drilled.
The development of the invention according to one embodiment has an advantage with regard to a simple and exact movement of the drilling tool up to a drilling point located in the immediate vicinity of a building wall, using an excavator supporting the jobber.
The development of the invention according to another embodiment makes it possible to provide drilling machine tables which are already in use, additionally with a driving socket lying close to the edges of the drilling machine table or to produce conventional drilling machine tables and drilling machine tables according to the invention largely using identical standard components.
The development of the invention according to another embodiment has an advantage with regard to the simplest possible subsequent equipping of already existing drilling machine tables. The offtake of the driving movement for the driving socket located at the edge of the drilling machine table from the rotary movement of the step-down gear takes place without any intervention in the interior of the existing conventional drilling machine table; only a few simple add-on parts are used.
With compact dimensions of the power-transmission device, the development of the invention according to another embodiment facilitates a 1:1-translation between the step-down gear and driving socket, i.e. a rotating driving socket with the same speed as the step-down gear. One thus has comparable driving ratios for both power take off points of the drilling machine table.
Also the development of the invention according to another embodiment serves for simple subsequent provision of the invention on already existing drilling machine tables without appreciable intervention in the mechanics of the drilling machine table. In this variation, one can also easily provide an increased speed with respect to the normal drive, at the additional power take off point close to the edge.
According to another embodiment, one obtains a drilling machine table, in which the housing projects only slightly beyond the drilling axis in one direction, so that drill holes can be produced in the immediate vicinity of a building wall, with overall particularly compact dimensions of the housing in the direction perpendicular to the drilling axis (in the case of normal use this corresponds to the direction of travel of the chassis).


BRIEF DESCRIPTION OF DRAWINGS

The invention will be described in detail hereafter by means of embodiments, referring to the drawings, in which:
FIG. 1 is a vertical axial section through a drilling machine table with an additional driving socket close to the edge for a drilling tool;
FIG. 2 is a similar view to FIG. 1, in which a modified drilling machine table is illustrated; and
FIG. 3 is a sectional view similar to FIG. 1, in which a drilling machine table which has again been modified is shown.


PREFERRED EMBODIMENTS

In FIG. 1, a drilling machine table is designated generally by the reference numeral 10, which is able to travel in the vertical direction on a jobber 12 shown in broken line, for example using a rope winch or a hydraulic cylinder (not shown in detail).
The drilling machine table 10 has a main lower housing part 16 and a main upper housing part 14 as well as a divided add-on housing part 18 fitte

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patent: 4246974 (1981-01-01), Rothrock
patent: 4295829 (1981-10-01), Martinelli et al.
patent: 4612998 (1986-09-01), Vindez
patent: 5029655 (1991-07-01), Ebeling
patent: 5033554 (1991-07-01), Younes

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