Measuring and testing – Instrument proving or calibrating – Displacement – motion – distance – or position
Reexamination Certificate
1999-03-03
2001-12-04
Raevis, Robert (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Displacement, motion, distance, or position
Reexamination Certificate
active
06324888
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an auxiliary housing for holding a distance measuring device.
It is known that in order to supply hand-held distance measuring devices, such as for example ultrasound distance measuring devices and laser distance measuring devices in protective bags, it is necessary to protect the devices from damages during transportation and storage. It is also known to integrate threaded bushings in the device housing of the distance measuring devices, which serve for mounting on a tripod. For the use on a tripod, in the known devices the reference point for the distance measurement must be compensated by a correction calculation. If such a compensation is forgotten, the measuring results are inaccurate.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide an auxiliary housing for holding a distance measuring device, which avoids the disadvantages of the prior art.
In keeping with these objects and with others which will become apparent herein after, one feature of present invention resides, briefly stated, in an auxiliary housing for holding a distance measuring device with a receptacle in which the distance measuring device is insertable and with a threaded bushing for mounting of the auxiliary housing on a tripod, wherein the threaded bushing has a longitudinal axis which, when the distance measuring device is inserted in the auxiliary housing, coincides with an abutment plane which is provided at the side of the device and serves as a reference plane for the hand-guided measuring process.
When the auxiliary housing is designed in accordance with the present invention, it has the advantage that in a simple manner a tripod operation with distance measuring devices is possible.
Since the longitudinal axis of the tripod threaded bushing coincides with a device-side reference plane for the measuring process when the distance measuring device is inserted in the auxiliary housing, the tripod operation can be performed with the same reference plane as the hand operation.
In view of the fact that the rotary axis and the reference plane coincide with one another, a doubling of the measuring region can be provided by simple turning of the device by 180°, without the necessity of performing a compensation.
The novel features which are considered as characteristic for the present invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
REFERENCES:
patent: 4470664 (1984-09-01), Shirasawa
Luginsland Juergen
Schmidt Dierk
Stierle Joerg
Wolf Peter
Raevis Robert
Robert & Bosch GmbH
Striker Michael J.
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