RU196416U1 - POLYMER FILM BAG FOR ECONOMIC PURPOSES - Google Patents

Abstract

The bag for household purposes from a polymer film contains a sleeve fastened at the bottom of the bag and having two handles on the open part of the bag. Each handle is formed by two protrusions fastened to each other. The lateral sides of each of the protrusions are made smoothly tapering from the top of the protrusion, followed by expansion along the curved lines of the sine wave in the range of angles from 3 / 2π to 0 on one side and along the curved lines of the sinusoid from 3 / 2π to -π on the other side and smoothly turning into a line edges of the open part. Parts of the front and back surfaces of the sleeve are bent inward from each of the sides of the sleeve by half the width of the tape to form an inner bend line. The fastening of the protrusions of each handle is made by straight transverse lines of fastening the layers of the sleeve, the height h of the protrusion is selected from the relation: h = (0.15 - 0.22) x D, where D is the diameter of the open part of the bag, and the width S of the protrusion is selected from the ratio: S = (0.45 - 0, 51) x D. A useful model ensures the placement of large objects in the bag and reduces the concentration of stress at the junction of the handles with the bag. 3 ill., 1 tab.

Description

The utility model relates to the field of containers, namely to bags for household purposes made of polymer film, designed for transportation and temporary storage of garbage, contaminated linen, various household items and for packing clothes and bedding.

Known bag for carrying various household items, containing two side walls fastened in the lower and lateral parts to each other (a sleeve fastened in the bottom of the bag) and having two handles on the edges of the open part, the sides of which are made in straight lines with a rounding turning into the edges of the open bag parts (WO 2009/056661, B65D 33/28, 2009)

A disadvantage of the known bag is that the two sides of the handles are made in straight lines that do not allow large items to be placed due to the insufficient distance between the handles, and the connection of the sides of the handles with the edges of the open part of the bag is made with a rounding that cannot be lifted by the handles bags with a large load due to the high concentration of stress on the insufficient rounding of the bag passing into the edges of the open part of the bag.

The task to which the claimed utility model is directed is to create a bag for household purposes from a polymer film, in which the concentration of stress connecting the handles with the open part of the bag is reduced.

The technical result, which is claimed by the claimed utility model, a bag for household purposes, made of a polymer film consists of a bag with protrusions gently tapering from the top, followed by expansion, which allows you to put larger items in the bag, in reducing the concentration of voltage connecting the handles with the joints of the handles with front and back surfaces of the bag sleeve.

To achieve the above technical result, a bag for household purposes from a polymer film contains a sleeve fastened at the bottom of the bag and having two handles on the open part of the bag, each handle is formed by protrusions fastened to each other, according to a useful model, the sides of each of the protrusions are smoothly tapering from the top of the handle with subsequent expansion along the curved lines of the sinusoid in the range of angles from 3 / 2π to 0 on one side and along the curved lines of the sinusoid from 3 / 2π to -π on the other side and smoothly turning into the edges of the open part, the part of the front and rear surfaces of the sleeve are bent inward from each of the sides of the sleeve by half the width of the tape with the formation of the inner bend line, the bonding of the protrusions of each handle is made by straight transverse lines of bonding of the sleeve layers, the height h of the protrusion is selected from the ratio

h = (0.15 - 0.22) × D,

where D is the diameter of the open part of the bag,

and the width S of the protrusion is selected from the ratio:

S = (0.45-0.51) × D.

The execution of the lateral sides of each of the protrusions smoothly tapering from the top of the protrusion, followed by expansion along the curved lines of the sinusoid in the range of angles from 3 / 2π to 0 of one side and along the curved lines of the sinusoid from 3 / 2π to -π on the other side and smoothly turning into the line of the edge the open part, the front and back surfaces of the sleeve are bent inward from each of the sides of the sleeve by half the width of the tape with the formation of an internal bend line, the bonding of the protrusions of each handle is made by straight transverse lines of bonding of the layers Ukawa, protrusion height h is chosen from the relationship:

h = (0.15 - 0.22) × D,

where D is the diameter of the open part of the bag,

and the width S of the protrusion is selected from the ratio:

S = (0.45 - 0.5) × D,

allows you to increase the strength of the connection of the protrusions with the front and rear surfaces of the sleeve for the bag with the protrusions gradually tapering from the top with subsequent expansion.

  When the height of the protrusions h <0.15D, a sufficient rounding in the sinusoid cannot be ensured, which creates the necessary strength when connecting the protrusions to the front and rear surfaces of the sleeve, leading to the destruction of the junction of the protrusions with the front and rear surfaces of the sleeve.

When the height of the protrusions h> 0.22D, a sufficient rounding in the sinusoid cannot be achieved, which allows to create the necessary strength when connecting the protrusions to the front and rear surfaces of the sleeve, leading to the destruction of the junction of the protrusions with the front and rear surfaces of the sleeve.

 The width S of the protrusions S> 0.5D is not possible, since two protrusions are placed on the front and back surfaces of the sleeve.

The width S of the protrusions S <0 / 45D cannot provide sufficient rounding in the sinusoid, which provides the necessary strength when connecting the protrusions to the front and rear surfaces of the sleeve and leads to the destruction of the junction of the protrusions.

 In FIG. 1 shows a bag for household purposes from a polymer film when folded, view of the front surface of the sleeve; in FIG. 2 - bag for household purposes from a polymer film when folded, view of the back surface of the sleeve; in FIG. 3 - a bag for household purposes in expanded form.

The bag for household purposes from a polymer film when folded contains a sleeve 1 fastened in the bottom 2 of the bag and having two handles 4 on the open part 3 of the bag, each handle 4 is formed by two protrusions 5 and 6, fastened to each other. The lateral sides 7 and 8 of each of the protrusions 5 and 6 are smoothly tapering from the top 9 of the protrusion 5 and 6, followed by expansion along the curved lines of the sinusoid in the range of angles from 3 / 2π to 0 of one side and along the curved lines of the sinusoid from 3.2π to - π on the other side and smoothly passing into the line of the edge 10 of the open part 3 of the bag. Parts of the front surface 11 of the sleeve 1 and parts of the rear surface 12 of the sleeve 1 are bent inward from each of the sides 13 and 14 of the sleeve 1 by half the width of the bag with the formation of the inner line 15 of the bend. The fastening of two protrusions 5 and two protrusions 6 of each handle 4 is made by straight transverse lines 16 of fastening the layers of the sleeve 1. The height h of the protrusion is selected from the ratio:

h = (0.15 - 0.22) × D,

where D is the diameter of the open part 3 of the bag,

and the width S is selected from the relation:

S = (0.45 - 0.51) × D.

A bag for household purposes is used as follows.

Garbage or any other product is poured into a bag for household purposes from a polymer film through the open part 3 of the bag and transferred to the handles.

.Examples of obtaining a thesis result for various numerical values from the intervals of the height of the handle h, the width S of the handle and the diameter D of the open part of the bag are given in the utility model formula and obtained experimentally are given in the Table.

Table

The height h of the protrusion, cm 11.52 (out of range) 15.4 (upper bound of the range) 10.5 (lower end of the range) 10.5 (lower end of the range) 17, 5 (above the upper limit of the range) The width S of the protrusion, cm 32.9 (out of range) 35.7 (upper bound of the range) 31.5 (lower end of the range) 28 (below the lower end of the range) 35.7 (upper bound of the range) Diameter D of the open part of the bag, cm 70  70 70  70  70 Pilot Test Results The protrusions do not collapse The protrusions do not collapse The protrusions do not collapse The ledges collapse The ledges collapse

Claims (5)

Bag for household purposes from a polymer film, containing a sleeve fastened at the bottom of the bag and having two handles on the open part of the bag, each handle is formed by two protrusions fastened to each other, characterized in that the sides of each of the protrusions are smoothly tapering from the top of the protrusion with subsequent expansion along the curved lines of the sinusoid in the range of angles from 3 / 2π to 0 on one side and along the curved lines of the sinusoid from 3 / 2π to -π on the other side and smoothly passing into the line of the edge of the open part, the front part and adney surfaces of the sleeves are folded inwardly from each side of the sleeve half the width of the tape to form the inner bend lines, bonding the protrusions each handle holds straight transverse lines bonding layers sleeves, the protrusion height h is chosen from the relationship: h = (0.15 - 0.22) xD, where D is the diameter of the open part of the bag, and the width S of the protrusion is selected from the ratio: S = (0.45-0.51) xD.

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