DE4318939A1 - Device for measuring distance by means of a telescopic arm; a steel strip is transported via a toothed wheel - Google Patents

Abstract

The current measuring devices are expensive to procure or have complicated operating instructions or are deficient in measuring accuracy. Starting from a coil, a rolled-up steel tape measure runs further between two support rollers as far as the tip of the telescopic arm and sticks mechanically (is hooked) there. Each part of the telescopic arm has two coils at the tip. The steel tape measure therefore cannot move laterally. Unlimited use is possible at any desired angle setting and any location, and can be carried out by only one person. Can be used in construction, industry.

Description

The invention belongs to the field of measurement technology in the field of Length and distance measurement.

The current state of the art: the measuring range of 1-10 m on the part of technology and industry with no suitable Device supplied. Either the acquisition costs are high, or elaborate operating instructions or the measuring accuracy to be desired.

1. Name

Distance measuring device using a telescopic arm.

2. A steel belt is transported via a gear wheel 2.1. Technical task and objective

Used to measure distances.
Measure in any spatial position.
In inaccessible locations.
Inexpensive system.

2.2 Solution of the technical problem

All elements are located on a base plate ( 11 ) via the drive crank ( 5 ), which is connected to the gear ( 12 ), the steel measuring tape ( 4 ) is transported. The steel measuring tape ( 4 ) set in motion pushes out the telescopic arm ( 10 ). The telescopic arm ( 10 ) is fixed by the brackets ( 7, 8, 9 ). The distance traveled by the telescopic arm ( 10 ) can be read off from a corresponding marking ( 13 ). On the gearwheel ( 12 ) there is a gearwheel rim ( 15 ) next to the gearwheel row ( 14 ) for transporting the steel tape measure, through which the second drive wheel ( 6 ) is driven synchronously with the gearwheel ( 12 ).

The telescopic arm is retracted using the crank ( 1 ), which is firmly connected to the rotatably mounted spool ( 2 ). The steel tape measure is guided by the rotatably mounted support rollers ( 3 ). To enable the steel tape measure ( 4 ) to be transported by means of the toothed wheels ( 6, 12 ), the steel tape measure ( 4 ) is provided with a row of holes. One end of the steel tape measure ( 4 ) is connected to the foremost point of the telescopic arm ( 10 ) and the other end is connected to the coil ( 2 ).

The telescopic arm ( 10 ) is extended and retracted by fastening the steel tape measure ( 4 ) on the one hand at the front end ( 17 ) of the telescopic arm ( 10 ) and on the other hand by fastening with the coil ( 2 ).

In addition to the manual drive ( 1, 5 ), all other drive devices (electrical, pneumatic, etc.) are also suitable, and it is also possible to supply the two drive devices ( 1, 5 ) via a common drive.

The steel tape measure ( 16 ) is provided with a length marking.

Description of the telescopic arm for sheet 3: Each part of the telescopic arm ( 10 ) has two coils ( 18 ) at the top, so that the steel tape measure ( 16 ) cannot move laterally. The telescopic arm ( 10 ) is built from small to large, and the transitions interlock. Each telescopic arm ( 10 ) has a larger diameter than the previous one. The steel tape measure ( 16 ) is pushed through to the smallest telescopic arm ( 10 ) and hooked there.

A magnet is also attached for good stability and a spirit level. To see at great distances and hearing, hearing aid and camera are installed.

2.3. field of use

To be used in any angular position, inaccessible To measure locations, can be carried out by only one person, usable in pipeline construction, construction and industry.  

Reference list

1 crank
2 coil
3 support rollers
4 steel tape measure
5 drive crank
6 2nd drive wheel
7 bracket
8 bracket
9 bracket
10 telescopic arm
11 base plate
12 gear
13 Marking, reading position
14 row of gears
15 gear rim
16 steel tape measure with holes
17 Steel tape measure / telescope attachment point
18 coils of the telescopic arm

Claims (1)

Starting from a spool ( 2 ), a rolled-up steel tape measure ( 16 ) runs between two support rollers ( 3 ) to the tip of the telescopic arm ( 10 ) and is hooked there.
Each part of the telescopic arm ( 10 ) has two coils ( 18 ) at the tip, so that the steel tape measure ( 16 ) cannot move laterally.
It is possible to measure in any spatial position, in inaccessible locations, in any angular position, by just one person.
For versatile use, there is also a magnet for good stability and a spirit level. In order to be able to see and hear at great distances, a hearing aid and a camera are installed.