DE202006009353U1 - protractor - Google Patents

Abstract

protractor with miter function for stepless measurement of inside and outside angles; thereby characterized in that a double parallelogram (1, 2, 6, 7, 8, 9) with two legs (3 and 4) and a movable sliding part (11) is adjustable.

Description

The Invention describes a device for stepless measuring and Creation of inside and outside angles as well as for determining and transmitting of miter angles z. B. in carpentry, interior design, steel construction and other crafting areas.

Usually become interior or exterior angles with measuring instruments such as angle slewing, Geodreieck or commercially available semicircular 180 ° or round 360 ° protractors determined. This is in most cases only with additional Aids possible, also time consuming and inaccurate. Electronic measuring tools are very expensive and are often not available. Must have items on Miter be cut, the problem shows the angle mathematically to halve and cumbersome and with the means already mentioned time consuming to transfer. This usually suffers from the accuracy of the result obtained.

Of the Invention is based on the idea that by simply applying of the protractor to the object of the angle at one or alternatively several scales can be read while the halved Angle (miter angle) is displayed.

Further Details, features and advantages will be apparent from the following Description of the drawing.

It demonstrate:

1 : the shape of the protractor in position for measuring interior angles r,

2 the shape of the protractor in the position for measuring outside angles,

3 a section through a sliding piece ( 11 )

4 a view of the protractor from the right side, in particular the parts ( 13 . 14 . 15 and 16 ) such as

5 and 6 an application example for transmitting miter angles.

In the present invention, this is done via a double parallelogram in which the parts ( 1 ) and ( 2 ) serve as a contact edge and the measured angle on the angle scale (disc 10 ) can be read. The uniform displacement of the parallelogram is achieved by two legs ( 3 and 4 ) and through the management part ( 11 ) reached. This is slidable and over the legs with the parts ( 1 ) and ( 2 ) connected. ( 3 ) The parts ( 1 . 2 . 6 . 7 . 8th and 9 ) form the parallelogram The disc ( 10 ) with one or more angle scales is with a part ( 8th ), one of the legs, firmly connected and freely visible at any time. With the exception of points A, B and C, the moving parts are riveted. At point A, B and C the connection is downwards with a cylindrical extension ( 13 . 14 and 15 ) at point B additionally with an overhead set screw ( 16 ) Mistake. ( 4 ) the parts ( 13 . 14 and 15 ) serve as contact points when transferring miter angles.

To measure an interior angle, you only need to hold the contact edges to the object. ( 1 ) The measured angle and the miter angle can now be displayed on the 10 ).

To transfer the miter angle, part ( 13 and 14 ) to a workpiece ( 17 ) and the longitudinal edges of part ( 7 ) indicate the miter angle to be transmitted. By creating part 14 and 15 to the workpiece ( 17 ), the second miter angle is transmitted, with the longitudinal edges of part ( 6 ) serve as a marking edge. ( 5 and 6 )

The procedure for external angles ( 2 ) is equal. It is also possible to set given angles on the scales in order to move in exactly the same way.

On This way is a time-saving and thus cost-saving work with the greatest possible accuracy guaranteed. It can all interior and exterior angles, the bigger than are about 15 °, be measured.

Claims (6)

Protractor with miter function for stepless measurement of inside and outside angles; characterized in that a double parallelogram ( 1 . 2 . 6 . 7 . 8th . 9 ) with two legs ( 3 and 4 ) and a movable sliding part ( 11 ) is adjustable. Protractor according to claim 1, characterized in that the measured angle on a disc ( 10 ) is readable with one or optionally several scales, wherein a disc ( 10 ) with a part ( 8th ), which forms one of the parallelogram part, is firmly connected. Protractor claim 1-2, characterized in that the device has three points of application in cylindrical form ( 13 . 14 and 15 ) for transmitting bevel angles. Protractor claim 1-3 characterized gekenn characterized in that the longitudinal edges of parallelogram parts ( 6 and 7 ) serve as a marking edge for transmitting miter angles. Protractor claim 1-4, characterized in that the leading edges of parallelogram parts ( 1 and 2 ) serve as contact edges for angle measurement and as scribing edges for transmitting the angle. Protractor according to claim 1-5, characterized in that a locking screw ( 16 ) is provided for fixing the protractor.