CS242516B1 - Tapestry needle - Google Patents

Description

(54) Ealoonic needle

The present invention relates to the treatment of a upholstery needle by providing an undercut notch (2) opposite the notch (3) for hanging the earpiece (10) of the button (11).

As the upholstery needle notch (3) passes through the upholstery fabric (8), the fibers (6, 7) of the upholstery fabric (8) are released and the edge (4J of the notch (3) passes the fiber (7) of the upholstery fabric). withdrawal by breaking the fiber (7).

4 2 3

The invention relates to a upholstery needle with a relief cut-out. So far known to transfer upholstery needles do not have a relief cutout. Therefore, when the upholstery needle is sucked out of the upholstery fabric, the upholstery fabric fiber is pulled out and torn, even if the sling for slinging the sling is completely filled and the sling edges are rounded. By pulling or pulling and breaking the fibers of the coating, the quality is reduced.

The essence of the upholstery needle with the relief cut-out is that a relief cut-out is made on the needle body opposite the notch for hanging the loop hinge.

The main advantage of the upholstery cut-off needle is that it does not pull out or pull and break the thread of the upholstery fabric through the notch of the needle to suspend the loop hinge when it is sucked from the upholstery fabric. The unloading cutout is simple in shape and can be made on any upholstery needle that does not have the unloading cutout.

The use of upholstery needles with deburring is possible in all machinery where upholstery needles are used without deburring.

The object of the invention is shown schematically in the drawing, in which Figure 1 shows the beginning of penetration of the upholstery needle through the upholstery after its puncture in the direction away from the filler mass, Fig. 2 shows the position of the upholstery needle when penetrating through the upholstery. Fig. 3 completely with the upholstery needle extended from the upholstery fabric.

The relief notch 2 is in the form of a portion of the cylindrical surface and is located on the body of the upholstery needle 1 opposite the notch 3. This relief notch 2 shape is suitable for all types of upholstery fabric 8 and its dimensions are determined according to the upholstery fabric used. it is not so large that the deflection cutout 2 is defective.

After piercing of the upholstery fabric with the tip 5 in the direction away from the filler mass 9, the fibers 8, 7 of the upholstery fabric 8 clamp the upholstery needle body 1. Upon further vacuuming of the upholstery needle body 1 from the upholstery fabric 8 reducing the gripping of the upholstery needle body 1 by the thread 7 of the upholstery fabric 8 and the edge 4 of the notch 3, in which the knob 11 is hung by the loop hinge 10, bypasses the thread 7 of the upholstery fabric 8.

When the upholstery needle is completely extended, the upholstery fabric 8, the fibers 6, 7 of the upholstery fabric 8 are intact and clamp the upholstery needle body 1 again. By rotating the upholstery needle body 1 about the axis 12 it is possible to find such upholstery needle position 1 relative to the upholstery fabric 8 in which the application of the deburring cutout 2 is the greatest.

Claims (1)

SUBJECT Upholstery needle, notched, characterized in that, compared to the notch (3), YNALEZU converted relief cut-out (2), advantageous shape cylindrical surface.