SU31141A1 - Curve breaker - Google Patents

Description

In the proposed device for dividing curves on the ground, with a carriage in the form of a vehicle, for setting the front wheel to the radius of the corresponding curve, the steering wheel axis is provided with a pointer, and there is a disk mounted on the steering wheel axis with the vehicle frame corresponding to the radii of one or the other. crooked.

In FIG. 1. Shows a side view of a device for dividing curves into a local area; FIG. 2 - view from above; FIG. 3-plan of the instrument plotting the desired radius,

The device for breaking up curves on the ground is made in the form of a wagon, for example, a bicycle, etc., on the axle 2 py.iut of the front wheel of which a disk 7 is mounted, fixedly mounted on the frame 3 of the wagon. On the front half of the disc there are divisions with digital symbols corresponding to the radii of one or another curve. The axis 2 of the steering wheel is equipped with a pointer 4 located above the disk 7.

To locate the curve of a given radius on the ground, the rudder of the front ob and, therefore, the front wheel turn so that the pointer 4 is set on the division of the disk 7 corresponding to the required radius, for 244, ..;

By that, the axis is fixed by the clamping screw 3 (Fng. 1) and the crew rolls, describing the curve of the required radius R, as shown in FIG. 3

The divisions on the disk are plotted on the basis of the existing relationship between the radius of curvature, the length of the base of the vehicle equal to the distance between points a and 6 (Fig. 1), and the angle of rotation of the front wheel.

For laying on the ground straight between two points, the device is equipped with two poles -6 and 7, directed to the point (milestone) to which the right should be laid. The person leading the device walks behind it and guides with two handles 8, sighting the landmarks b and 7 at a given point. ku Landmarks -6 and 7 are foldable and can be attached to the bike; the handles 8 are also foldable and consist of pipes which are inserted one into another.

For putting two straight lines on the ground at a predetermined angle on the back half of the disk, the degree divisions are applied, and the arrow JO is attached to the pointer 4; the axis of the steering wheel 2 is attached folding pole 9, placed in front of it. The device is installed so that the stick 7 is at the top of the corner, and the stick 6 and P-

in the direction right at an angle on which the arrow 10 is mounted on

drive.

Subject is ibret and.

An instrument for breaking up curves on the ground, made in the form of a wagon, characterized in that an axle 2 of the front wheel of the leashes is attached to a disk 7 fastened to the frame 3 of the carriage, on which the radii of certain dividing curves are plotted, and the axis 2 of the bar has an indicator 4 (Fig. 1, 2) to set the front wheel to the radius of the corresponding curve