DE3121463C2 - "Sack for spillage" - Google Patents

Abstract

A sack for powdery or granular material has a sack valve (1) with access to the inside of the sack, and at least one elongated sack section (2) on both sides of the sack valve (1). According to the invention, the two ends of the sack sections are turned out from the flat sack tube, the sack sections (2) preferably being fastened to one another at the ends to form at least one strap, e.g. by sewing. The resulting sack for heavy weights is inexpensive to manufacture and easy to handle with a fork cart, e.g. during filling. The easy handling enables the fork truck driver to remain in the driver's cab of the fork truck while backing and transporting sacks.

Description

The invention relates to a bag for loose material, such as powdery or granular material, the is formed by superimposed, elongated material webs, which at their longitudinal edges with each other, for example by sewing, and on the filling side by connecting the material webs a filling valve and two sack sections lying next to it are delimited in the middle, of which the Filling valve is connected to the inside of the sack, while the two sack sections are used to form Retaining straps are used.

In a known sack of this type (DK-OS 1 43 099) are those located next to the filling valve Sack sections to form retaining straps folded down on the main part of the sack and with connected to this by sewing. In this way, two retaining straps are formed in the retaining devices to hold the sack, for example when filling, are introduced. With this well-known Sack, however, two separate seams are required to form the two retaining straps, which is something in the manufacture is expensive, especially because these seams must have a considerable strength.

Another known sack (CH-PS 5 04 353) is also expensive to manufacture the retaining strap can be formed on a support plate of the sack, which is separated from the actual Sack must be connected.

It is also known (GB-PS 15 57 784) to close a container in that the upper end of the container having a square cross-section, the upper end portion along two opposite sides Edges are folded over in the manner of a package, so that at right angles to this Edges of two triangular flaps are created, which in turn are connected to each other. To this Way, the two triangular tabs together also form a shoulder strap. A filling however, this container after the formation of the carrying strap is very difficult, if not impossible. Farther

ίο the strength of the support belt formed in this way is low.

The invention is based on the object of a sack

to create of the type mentioned, which has a high strength with simple manufacture

According to the invention, this object is given by what is stated in the characterizing part of the patent claim Features solved.

In the case of the sack according to the invention, no additional seam is required to produce the retaining strap; the two sections of the sack overlap very widely, see above that the strength of the tether is very great. The edge bands result in an improved introduction the forces of the shoulder strap on the actual sack and at the same time the strength of the retaining strap improved, because the edge band after sewing the two sack sections on both sides of the Strap lies

An embodiment of the invention is explained in more detail below with reference to the drawings explained. In the drawing shows

jo F i g. 1 shows an embodiment of the sack during its manufacture, with both sides of the Bag valve an elongated bag section is formed,

F i g. 2 the sack according to FIG. 1 after the sack sections have been fastened to one another to form the retaining strap.

The in F i g. 1 shown embodiment of the sack during its manufacture has a top Bag valve 1 with access to the inside of the bag. There is an elongated one on each side of the bag valve

4 «bag section 2 provided. The ends of these sack sections are rotated out of the plane of the sack that has been added and switched on before they are connected to each other the ends attached to one another to form a retaining strap as shown in FIG. This becomes a very Fixed suspension construction achieved, while at the same time the sack is easy to fill. The sack is also cheap to produce, because the sack sections 2 by sewing together with considerable overlap on each other be attached. This facilitates access to the inside of the sack and results in a good one Distribution of tensile stresses. The bag sections are reinforced by edge bands 4, which in cross section Are V-shaped and extend over the entire length of the longitudinal edges.

When the bag sections are rotated accordingly, as shown in FIG. 2 is shown so amplify the Edge bands of a sack section the otherwise unprotected edge of the other sack section.

The seam 3 shown in the drawings serves to delimit the sack at the top and to delimit it of the bag valve.

For this purpose 2 sheets of drawings

Claims (1)

Claim: Sack for loose material, such as powdery or granular Material made by superimposed, elongated Material webs is formed, which at their longitudinal edges with each other, for example by Sew, connected and centered on the filling side by connecting the material webs Filling valve and two adjacent bag sections are delimited, of which the filling valve with the sack interior in connection, while the two sack sections to form Retaining straps are used, characterized in that they are located next to the filling valve (1) Sack sections (2) folded out of the plane of the flat sack and joined at their ends are connected so that the bag sections (2) are twisted before being connected to one another so that that the edge of the sack section (2) corresponding to a longitudinal edge of the sack with the original the filling valve (1) adjacent edge of the other bag section coincides that the Longitudinal edges of the sack are reinforced by edging strips (4) extending along the periphery of the Sack extend, and that the sack sections (2) overlap over a considerable distance.