RU197497U1 - Canister - Google Patents

Abstract

The utility model relates to containers for storage and transportation of liquid, grease and bulk solids and can be used in food, pharmaceutical, chemical, oil refining and other industries, as well as in agriculture. The technical result of the claimed utility model consists in improving the strength characteristics of the canister due to the rigidity of the body and ribs with increasing the resistance of the canister to deformations under pressure from above. The technical result is achieved by solving the technical problem of creating a canister containing the body formed by the front, back, side, top and bottom walls, in the upper wall there is a recess in the middle part, in which the neck and handle are arranged, the housing contains vertical ribs, stacking elements are made in the upper and bottom walls of the housing, the front and rear walls are made without flat sections and in the longitudinal section are barrel-shaped arched, the vertical ribs of the body have a convex barrel-shaped arched profile in longitudinal section along the entire length of the rib zone, including profile stiffeners, while the optimal curvature (K) of the rib is from 0.02 to 0.1 of the height of the canister (N), and the curvature (k ) the central part of the rib zone is from 0.005 d about 0.1 of the height of the canister (N), characterized in that the side walls of the canister are made on the basis of a cylindrical surface with a pronounced radius of curvature in a horizontal section in the middle zone, as well as in horizontal sections of the upper and lower parts of the side walls, and the dimensions of the edges of the canister in the cross section are calculated as follows: 1) The longitudinal size of the ribs in the projection (L ave.) = L / 5 ± L / 8.2) the length of the canister in the longitudinal direction in the top view; B is the width of the canister in the longitudinal direction in the top view. Technical advantages are the creation of the canister, which provides maximum body rigidity, increased strength characteristics, reliability and durability, as well as ease of manufacture and operation, simplicity and stacking freedom. 10 s.p. f-ly, 18 ill.

Description

The inventive utility model relates to containers for storing and transporting liquid, grease and bulk solids and can be used in food, pharmaceutical, chemical, oil refining and other industries, as well as in agriculture.

For packaging, storage and transportation of various food products, medicines, perfumes and cosmetics, household chemicals, paints and varnishes, industrial oils and lubricants, industrial and household products, as well as dangerous goods, hermetically sealed containers are used. In the production of plastic shipping containers, one of the leading places is the production of cans. Everywhere, transportation containers have certain requirements: safety, inadmissibility of leakage of contents, transportation requirements - impact resistance, withstanding pressure, load, vibration, temperature and humidity differences.

A known canister containing a housing including side walls, a bottom, an upper wall with a handle and a neck located in the central recess, stiffeners, stacking elements on the upper wall and the bottom of the housing, characterized in that the transition from one side surface to another is made at an angle of 90 ° by smoothly rounding a surface section with a wave contour in cross section with the number of oval, longitudinal along the canister body, protrusions of at least 2, which are stiffening elements of the canister body, while the height of the oval protrusions does not extend beyond the dimensions of the canister body in width and thickness, and the lateral walls of the canister are formed by external rounded surfaces with a radius of curvature significantly exceeding the overall dimensions of the canister, while the stacking elements are made in the form of two symmetrically located rectilinear support-fixing protrusions located on the upper wall of the canister and opposite to the bottom part and canisters of recesses repeating the shape of the support-fixing protrusions (RF patent for utility model. 114035, IPC B65D 1/00, publ. 03/10/2012).

 The disadvantage of such a canister is, for example, the absence of a recess at the bottom, which facilitates the capture of the canister from below by hand, which can lead to damage to the canister when it falls, which does not preclude the spillage of liquid. Another significant drawback is the implementation of the side walls of the flat and vertical edges of the canister straight, which can lead to (and in practice leads to) a change in its shape (shape transformation) after pouring liquid and stacking during transportation and storage of canisters.

 Also known is a canister containing a housing formed by the side, upper and bottom walls, with a neck and a handle made in the upper part of the housing, characterized in that the neck and handle are located in a recess formed in the middle of the upper wall, the body ribs are provided with profile stiffeners , stacking elements in the form of support-fixing protrusions and nests are made on the upper and bottom walls of the casing, while the bottom wall of the casing has a recess for gripping the canister, a rectangular recess in the middle part with rounded walls and opposite recesses, one of which is made with decreasing relative to the other and is associated with a recess for capturing the canister (patent for utility model 146336, IPC B65D 1/00, publ. 10.10.2014).

 According to the patent, the casing is in the shape of a parallelepiped, which is a rectangle with rounded corners in cross section.

Also, according to the patent, profile stiffeners are made in the form of at least two grooves parallel to each edge of the housing, the grooves being oval.

Also, according to the patent, the stacking elements are made in the form of vertical truncated cones mounted in pairs relative to the handle on the upper wall of the housing, and conical recesses opposite them on the bottom wall, while the latter has two supporting protrusions in the form of vertical truncated cones.

Also, according to the patent, the recess of the upper wall is made along the longitudinal axis of symmetry of the canister, gradually expanding towards the neck and passing into the seat under it.

Also, according to the patent, the recess for capturing the canister is made in the form of half an ellipsoid formed by different radii.

Also, according to the patent, on the outer surface of the neck a resistant thread is made with a profile of an unequal trapezoid and an angle between the sides of 45 °.

Also, according to the patent, at the base of the neck there is a gear rim with a protrusion and tooth pitch equal to 30 °.

Also, according to the patent, the handle is made in the form of a hollow rectangle with rounded ribs, while one end of the handle is paired with the upper wall and is parallel to the excess of its plane, and the other is bent at an obtuse angle to the latter and forms an acute angle with the base of the recess.

Also, according to the patent, the canister is made of low pressure polyethylene by extrusion blow molding.

The disadvantages of such a canister are the design and arrangement of stacking elements, in which even a slight deformation of the upper or lower bottom significantly interferes with the docking of the elements. At the same time, the docking of the elements must be done carefully, which is difficult to do when manually installing the canisters in the stack. Practice has shown that the shape of the parallelepiped at the base of the canister provokes deformations in the region of the upper and lower quarters of the ribs, with an increase in internal pressure and simultaneously a load from above. The shape of the canister in this case tends in the middle to the ball, and the upper and lower bottom hold the parallelepiped shape, creating creases on the ribs inward. Another disadvantage is the low resistance of the rounded shape of the ribs to compression from stretch winding - a film of a group of cans, which favors deformations with a characteristic crease of the ribs inward. In addition, all the side walls of the canister in the middle part are made flat, and the ribs of the body with profile stiffeners are also straight in the middle part, which means that the side walls and vertical ribs can transform (tend to transform), changing the shape of the canister after pouring liquid and stacking during transportation and storage of cans.

Also known is a canister containing a housing formed by the front, rear, side, upper and bottom walls, with a recess in the middle part made in the upper wall, in which the neck and handle are arranged, vertical ribs are made with profile stiffeners, in the upper and bottom walls the hulls are made with stacking elements, the front and rear walls are made without flat sections and in the longitudinal section are barrel-shaped-arched, and:

- stacking elements are made on the upper and bottom walls of the case: on the upper wall - in the form of a U-shaped protruding rim with rounded corners, forming a recess for the handle, and two protrusions on the long sides of the rim, facing outward and connected together with the U-shaped protruding rim and in the bottom wall there is a recess of rectangular shape with rounded corners, corresponding to the protruding rim in the upper wall for stacking the canister, and in the front and rear parts of this recess there are continuing recesses in the form of strips with slightly rounded corners, and in the middle of the recess is perpendicular to the longitudinal axis, recesses are provided that extend from the recess and correspond to protrusions in the middle of the upper wall,

- in the bottom recess are made perpendicular to the longitudinal axis of three rectangular recesses on each side, increasing the rigidity of the bottom wall,

- in the bottom recess from the side opposite the neck, inside it and adjacent to its rear border, a recess is made to capture the canister by hand,

- the left and right side walls in the middle part have flat slightly recessed surfaces, and in the lower part there are vertical and semicircular recesses in the cross section, forming stiffeners (http://www.zti.ru/category/kanistry-21-5-litr/ to-21-5-l-ks /).

As already noted, in practice, the shape of the parallelepiped at the base of the canister provokes deformations in the region of the upper and lower quarters of the ribs, with an increase in internal pressure and simultaneously load from above. The shape of the canister in this case tends in the middle to the ball, and the upper and lower bottom hold the parallelepiped shape, creating creases on the ribs inward. Therefore, a canister can be considered approaching the ideal shape, in which, initially, when designing, a certain spherical or barrel-like shape in the middle of the canister is combined with a reinforced configuration of the zones of the upper and lower parts of the ribs. This concept underlies the development of the claimed utility model.

Therefore, a certain disadvantage of the above analogue can be considered insufficient implementation of the above concept of the shape of the canister, due to the small curvature of the vertical ribs. In terms of stacking, the disadvantage of the analogue is the implementation of a U-shaped protrusion in the form of a continuous long line with roundings, which provoked a possible difficulty in stacking canisters in the curvature zone.

Those. the analog is a prototype of the more advanced design of the canister described in this application. Structural and technological changes in the claimed utility model concerned the configuration of vertical ribs in terms of increasing curvature (increasing barrel shape) and strengthening the upper and lower parts to increase their stiffness and preventing crease corner jerking, increasing curvature of the front and rear walls (increasing barrel shape), a significant change in elements stacking according to the principle of creating these elements on the upper wall not in the form of a single solid element that undergoes more deformation during operation of the prototype, but in the form of intermittent stacking elements (claimed utility model), as well as significant processing of the upper and lower walls of the canister, as described below. The inventive utility model is a significant development of the prototype and the new concept of the canister. The author and applicant of the utility model is directly related to the development of an analogue.

Known canister containing a housing formed by the front, rear, side, upper and bottom walls, a recess is made in the middle wall in the middle part, in which the neck and handle are arranged, the housing contains vertical ribs, stacking elements are made in the upper and bottom walls of the housing, the front and the rear walls are made without flat sections and in longitudinal section - barrel-shaped arcuate (US 7059486 B2, 06/13/2006, Fig. 1, 2 [0025] - [0039]).

 The subject of the invention according to the US patent is to make vertical ribs expanding in the upper and lower parts of the canister and with smooth curvature in the upper and lower parts of the ribs when moving from the rib to the upper or lower wall, when viewed in vertical sections. This is done to reduce the collapse of the corners of the ribs. The essence of the technique for rounding the corners of ribs in plastic cans has long been known. In this case, the vertical ribs in the middle part are almost straight, especially in versions using a removable, plug-in middle part of the mold to change the volume of the product during blow molding, as described in the patent. This design of the ribs is a certain disadvantage of the prototype.

Known canister containing a housing formed by the front, rear, side, upper and bottom walls, a recess is made in the middle wall in the middle part, in which the neck and handle are arranged, the housing contains vertical ribs, stacking elements are made in the upper and bottom walls of the housing, the front and the rear walls are made without flat sections and in the longitudinal section are barrel-shaped-arc-shaped, characterized in that the vertical edges of the body have a convex barrel-shaped-arc-shaped profile in the longitudinal section along the entire length of the rib zone, including profile stiffeners, while the optimal curvature (K) the ribs is from 0.02 to 0.1 of the height of the canister (N), and the curvature (k) of the central part of the zone of the ribs is from 0.005 to 0.1 of the height of the canister (N), and the dimensions of the ribs of the canister in cross section are calculated as follows:

1) The longitudinal size of the ribs in the projection (L Ave.) = L / 4 ± L / 8

2) The transverse dimension of the rib in the projection (L cross.) = B / 4 ± B / 8, where:

L is the length of the canister in the longitudinal direction in a plan view;

B is the width of the canister in the longitudinal direction in a plan view.

(RF patent for utility model No. 188035, application 2018131488, priority date September 1, 2019, published March 28, 2019).

The canister according to the patent is characterized in that the vertical ribs of the body have three protrusions extending from both sides to the base surface of the ribs, while the middle protrusion is made larger than the others.

In addition, the canister according to the patent is characterized in that the base surface of the rib is calculated in horizontal section in accordance with the longitudinal and transverse dimensions of the rib in the projection and is in this section a convex or straight line connecting the edges of the side walls with the edges of the front or rear walls of the canister .

In addition, the canister of the patent is characterized in that the stacking elements on the upper wall of the canister are made in the form of three support-fixing protrusions.

In addition, the canister according to the patent is characterized in that three supporting-fixing protrusions on the upper wall are made along the notch in the form of a horseshoe-shaped protruding rim, which is a continuation of the handle, and two oblong protrusions on both sides of the handle.

In addition, the canister of the patent is characterized in that the bottom wall has recesses for the corresponding placement in them of the support-fixing protrusions of the upper wall of the canister, namely:

- front recess located under the neck,

- a rear recess made in the rear of the bottom wall,

- a recess made along the longitudinal axis of the bottom wall of the canister and connecting the front and rear recesses,

- two oblong recesses made on both sides of the longitudinal axis of the bottom wall of the canister and located opposite to the corresponding elongated protrusions on the upper wall of the canister.

In addition, the canister according to the patent is characterized in that the side walls have upper and lower protruding parts and a middle recessed part, while the lower part has vertical elongated lengths and semicircular recesses in the cross section, increasing its rigidity.

In addition, the canister of the patent is characterized in that the recess of the upper wall is made along the longitudinal axis of symmetry of the canister, tapering smoothly towards the neck, covering its seat and ending on the front wall of the canister body.

In addition, the canister of the patent is characterized in that in the recess of the upper wall there are protrusions or concavities of an oval shape in the direction perpendicular to the handle.

In addition, the canister according to the patent is characterized in that a handle in the form of a hollow rectangle with rounded ribs is made in the recess of the upper wall, while one end of the handle (rear) is flush with a horseshoe-shaped protruding side, parallel to the upper wall with its plane exceeding, and the other bent at an obtuse angle to the latter and forms an acute angle with the base of the recess,

In addition, the canister according to the patent is characterized in that the front and rear recesses in the bottom wall of the canister are made in the form of half an ellipsoid formed by different radii.

In addition, the canister of the patent is characterized in that the stacking elements are made as follows:

- lateral protrusions on the upper wall of the canister are located at the same distance from the longitudinal axis of the canister, in addition, they are located in the direction along the longitudinal axis and are located in the middle of the bottom wall of the canister, on the transverse axis of the canister;

- front and rear recesses in the bottom at any of the canister positions: both the “cork above the cork” and the 180-degree turn are in opposition with the neck and rear protrusion on the upper wall of the canister body.

In addition, the canister according to the patent is characterized by the fact that on the outer surface of the neck there is a resistant thread with a profile of an unequal trapezoid and an angle between the sides of 45 °.

In addition, the canister of the patent is characterized in that the canister is made of low pressure polyethylene by extrusion blow molding.

The author and patent owner of the patent of the Russian Federation No. 188035 is the author and applicant of this utility model.

The decision on the patent of the Russian Federation No. 188035 is taken as a prototype.

The problem is that the patented ratios for the parameters of the side barrel-shaped ribs, as well as the structural elements of stacking and profiles of the upper wall and bottom, are typical for certain sizes of canisters. Calculations and experimental verification show that for other sizes of cans, for example, with a volume of about 30 l or more, structural changes are necessary with the reinforcement of individual elements of the canister, increasing its rigidity. This problem is solved by specific technical solutions provided in the claimed utility model.

The technical result of the claimed utility model is to improve the strength characteristics of the canister due to the rigidity of the body and ribs with increasing the resistance of the canister to deformation under pressure from above.

The above generalizing technical result, in particular, is to increase the rigidity of the side barrel-shaped ribs by changing the parameters of the longitudinal and transverse dimensions of the ribs, tied respectively to the longitudinal length of the canister and its width. Such ratios of the longitudinal and transverse dimensions of the ribs in the projection are preferable for canisters with a volume of 30 l or more.

In addition, the above generalizing technical result, in particular, is to optimize the stacking elements by changing their design, providing them with additional reinforcement.

In addition, the above generalizing technical result, in particular, consists in additional special profiling of the surface of the bottom, which has significant areas in comparison with the prototype, thereby eliminating the deformation of the bottom of the refilled canister, including during loading and unloading and during storage.

In addition, the above generalizing technical result, in particular, is to further strengthen the internal recess in the upper wall of the canister.

An additional technical result of the canister is to provide simplicity and possible freedom (with a 180 degree turn) of stacking the canister during operation.

The technical result is achieved by solving the technical problem of creating a canister containing a body formed by the front, rear, side, top and bottom walls, a recess in the middle part is made in the upper wall, in which the neck and handle are arranged, the body contains vertical ribs, in the upper and bottom stacking elements are made on the walls of the body, the front and rear walls are made without flat sections and in the longitudinal section are barrel-shaped-arc-shaped, the vertical edges of the body have a convex barrel-shaped-arc-shaped profile in the longitudinal section along the entire length of the rib zone, while the stiffeners are optimally curved (K) the rib is from 0.02 to 0.1 of the height of the canister (N), and the curvature (k) of the central part of the zone of the rib is from 0.005 to 0.1 of the height of the canister (N), characterized in that the side walls of the canister are made on the base of a cylindrical surface with a pronounced radius of curvature in a horizontal section in the middle zone, as well as in the horizontal sections of the upper and lower parts of the side walls, and the dimensions of the ribs of the canister in cross section are calculated as follows:

1) The longitudinal size of the ribs in the projection (L Ave.) = L / 5 ± L / 8

2) The transverse dimension of the rib in the projection (L cross.) = B / 4 ± B / 6,

Where:

L is the length of the canister in the longitudinal direction in a plan view;

B is the width of the canister in the longitudinal direction in a plan view.

As already described in the prototype, the barrel-shaped shape of the ribs and walls is the main feature of the claimed utility model. The product loses in volume, but acquires the greatest strength under the action of pressure from the inside and from the top. Unlike previously designed and manufactured canisters having a parallelepiped shape, the inventive canister has as its basis a shape approximating that of a flattened barrel.

Those. the shape of the ribs and canisters in the longitudinal section is barrel-shaped, without flat sections. Due to the barrel-shaped ribs and the roundness of the upper and lower bottoms in cross section, the shape of the canister is close to the ball, which makes it less likely to deform at the corner / body transitions under pressure from the inside and under load from above

Thus, the concept of the canister developed by the applicant, according to the claimed utility model, is based on the tendency of the canister, under internal and external influence, to acquire a shape approaching in the middle to the shape of a ball (theoretically) or a barrel, i.e. to barrel-shaped form. Therefore, used in relation to the claimed utility model, the term "barrel-arcuate" in relation to the front and rear walls and vertical edges of the canister is justified, as it most fully reflects the essence and feature of the claimed design of the canister.

In addition, the canister is characterized in that the vertical ribs of the body have three protrusions, while the middle protrusion is made larger than the others. As a rule, the protrusions have small radii of curvature.

Those. the shape of the ribs in cross section has three distinct protrusions, playing perhaps the main role in increasing the rigidity of the ribs as a whole. The increased width of the ribs and the small radii of the side / rib transition increase the rigidity of the canister and the resistance of the ribs to compression from stretch winding with a film of a group of canisters, before sending them to consumers, as well as during operation of filled canisters.

The main thing is that the vertical ribs of the body have a convex barrel-shaped arc-shaped profile in longitudinal section along the entire length, while the number of protrusions is not critical.

In addition, the canister is characterized in that the base surface of the rib is calculated in horizontal section in accordance with the longitudinal and transverse dimensions of the rib in the projection and is in this section a convex or straight line connecting the edges of the side walls with the edges of the front or rear walls of the canister body. In this case, the baseline can be visible or virtual, but it is used in the construction of the edge.

In addition, the canister is characterized in that the stacking elements on the upper wall of the canister are made in the form of three support-fixing protrusions.

In addition, the canister is characterized in that three supporting-fixing protrusions on the upper wall are made along the boundaries of the recess:

- rear protrusion - in the form of an arched protrusion, repeating inside the notch border, having approximately the same width, adjacent to the handle and having fillets on the sides in the adjoining areas (often referred to as fillets) with a radius of at least half the width of the protrusion, the upper parts of the handle and the back the protrusions are located on one surface (i.e., flush) and protrude above the upper wall of the canister;

- two lateral protrusions on both sides of the handle - T-shaped with an elongated longitudinal part and a shortened transverse part facing inward of the recess and ending at its border, the protrusions being at the same distance from the longitudinal axis of the canister and in the middle of the length of the canister.

From the point of view of the utility model, this means that the three support-fixing protrusions on the upper wall protrude above its surface and are made mainly outside the recess, since part of the handle for gripping it with your hand can be either protruding and flush with the rear protrusion, or slightly submerged. This is due to the essence of the utility model: the main support - fixing protrusion in the link "handle - rear protrusion" is the rear protrusion.

For a possible free-stacking canister, side protrusions can be made in the middle of the canister. The protrusions of the T-shaped, in comparison with the prototype, improve the fixation of the canisters in the longitudinal direction when stacking. The shape of the posterior protrusion (side) is similar to a U-shaped.

So the implementation of the rear protruding side, which is a continuation of the handle and the handle itself, protruding above the horizontal surface of the upper wall serves to securely lock the canister when stacking, including when choosing an option with free installation of it with a possible turn of 180 degrees.

The fixing protrusions on the upper wall and the recesses on the bottom wall of the canister are located in the zone of best control from the standpoint of blowing technology. The wall thickness on two lateral protrusions (stops) can be controlled by the PWDS system (dynamic adjustment of the workpiece thickness in cross section), and the rear protrusion (emphasis) is located in the area of the closing line, where the thickness is always guaranteed.

In addition, the canister is characterized in that the recess of the upper wall is made along the longitudinal axis of symmetry of the canister, gradually tapering towards the neck, covering its seat and ending on the front wall of the canister body, while the recess in the longitudinal direction under the handle is made with an opening height sufficient for gripping the handle with your hand, and in the transverse direction, with its smooth rise to the notch border located at the intersection of the notch with the upper wall of the canister, while the notch has elongated protrusions or concavities in the transverse direction, having a top view length of at least 0 , 8 distance from the end face of the handle to the notch border.

The protrusions or concavities of an oblong shape, often referred to as corrugations, can have an oval shape, and in the embodiment, three corrugations are made on each side of the handle, protruding outward.

There can be several protrusions or concavities, the main function being two protrusions or concavities located on both sides of the handle adjoining the surface of the bottom of the recess. In the presented embodiment, for relatively large canisters, three protrusions (corrugations) are made on each side.

This increase in stiffness is necessary, since with repeated sharp jerking of a filled canister by hand, there is a case of crushing, creases in the connection of the handle with the surface of the bottom of the recess in the absence of additional stiffening elements.

In addition, the canister is characterized in that the bottom wall has a profile and recesses, including for the appropriate placement in them of the support-fixing protrusions of the upper wall of the canister, namely:

- the front recess located under the neck, the rear recess made in the rear of the bottom wall, while the front and rear recesses are approximately U-shaped with the possibility of installing a cork or rear protrusion of the canister when stacking,

- a recess made along the longitudinal axis of the bottom wall of the canister and connecting the front and rear recesses,

- two T-shaped recesses made on both sides of the longitudinal axis of the bottom wall of the canister and located opposite to the corresponding T-shaped protrusions on the upper wall of the canister,

- the middle part of the bottom recess of an approximately flat surface, passing along the perimeter of the recess to the rising part of its surface to the boundary of the bottom recess with the supporting surface of the bottom, while the middle part of the bottom recess has transverse corrugations (in the embodiment, 7 corrugations, but their number may also be others) of an elongated shape (in the embodiment, an elongated oval shape, although this shape may be different, for example, rectangular or with expansion), and their length may be constant or increase from the middle to the perimeter of the canister. In the embodiment, the corrugations are made concave inward, although they can also be made with the protrusion outward, which in any embodiment increases the rigidity of the bottom of the canister.

In addition, the canister is characterized in that the front and rear recesses in the bottom at any of the positions of the canister: both the “cork above the cork” and with a 180-degree turn are in opposition with the neck and rear protrusion on the upper wall of the canister body.

One recess in the bottom wall is used for hand grip, the other is used to increase its rigidity. In addition, both recesses can, under certain conditions, provide an option for free stacking, for example, when recesses are made identical, located equidistant from the longitudinal axis of the canister and connecting the midpoints of two oblong recesses to the corresponding elongated protrusions in the upper wall.

If there are two recesses, the back of the handle with the rear protrusion is placed when stacking cans in one of the recesses - the back, and the longitudinal protrusions on the upper wall are placed in the corresponding longitudinal recesses in the bottom wall.

Of course, the configuration and dimensions of the support-fixing protrusions in the upper wall and the corresponding configuration and dimensions of the recesses in the bottom wall are made with gaps that ensure reliable stacking of the canister as a “cork over the cork”, and subject to the above conditions, with its 180-degree turn as well as a comfortable and free grip with her hand.

The canister can be made both for free stacking and in a fixed version, with one or two recesses, as well as in the case when a recess is made in the bottom wall only in the back.

The preferred embodiment is the execution of the canister for free stacking, i.e. with two recesses in the bottom wall. The advantage of this option also lies in the fact that the implementation of the "optional" recess in the bottom wall, for example, under the neck, leads to an increase in the rigidity of the bottom wall of the canister, because the presence of two recesses at the bottom reduces the area of a flat area at the bottom and prevents deformation of the bottom under load.

In addition, the canister is characterized in that the side walls have upper and lower protruding parts and a middle recessed part, while the lower part has vertical elongated lengths and semicircular recesses in the cross section, increasing its rigidity.

The middle recessed portion may have a bulge in cross section.

In this case, the upper and lower parts of the side walls are beveled, tapering, respectively, to the upper and lower walls of the canister.

Concavities at the side / bottom transition give greater resistance to collapse of the lower horizontal rib (body / bottom), and small radii at the body / bottom and rib / bottom transitions give greater compression resistance.

The middle part can be recessed, for example, by 2-3 mm, which is sufficient to ensure the safety of labels, etc., glued to the canister.

In addition, the canister is characterized in that a handle in the form of a hollow rectangle with rounded edges is made in the recess of the upper wall, while one end of the handle (rear) is integral with the rear protrusion of the stacking elements, and the other (front) is bent at an obtuse angle to the last and forms an acute angle with the base of the notch.

In addition, the canister is characterized in that the canister is made of low pressure polyethylene by extrusion blow molding.

On the outer surface of the neck, a resistant thread is made with a profile of an unequal trapezoid and an angle between the sides of 45 °.

The essence of the utility model and the possibility of its practical implementation are illustrated by drawings, where:

FIG. 1 - general view of the canister, view ¾ front-top;

Figure 2 - General view of the canister, view ¾ front-bottom;

FIG. 3 - canister, top view;

FIG. 4 - canister, bottom view;

FIG. 5 - canister, side view (left);

FIG. 6 - canister, front view;

FIG. 7 - outer profile of the middle protrusion of the ribs (section CC);

FIG. 8 is a horizontal section along the profile stiffening elements of the ribs (section BB);

FIG. 9 is a general view of the canister, a rear view from above, with indications of cross-section points along the rib;

FIG. 10 - canister, sections;

FIG. 11 - canister, bottom view with indication of cross-sections;

FIG. 12 is a general view of the canister, a top view ¾ rotated 180 degrees

 canister;

FIG. 13 - canister, view from the side of the rib, with the allocation of the zone of the rib;

FIG. 14 - canister, top view, with the parameters of the ribs;

FIG. 15 - canister, view ¾ from rear to left, indicating the locations of sections C and T .;

FIG. 16 - canister, sections CC and TT;

FIG. 17 - canister, top view with areas of stacking elements;

FIG. 18 - canister, indicating the locations of the sections and the sections themselves (U, F, X).

Figure 1 presents the canister with a neck, without a lid. The canister contains a housing 1, consisting of a front 2, a back 3, a side 4 and 5, an upper 6 and a bottom 7 walls, a carry handle 8 made in the upper wall 6 and passing through the longitudinal axis of the canister, a neck 9. The body has a horizontal section an approximate shape of a rectangle with cropped corners on which vertical ribs are made. The body of the canister is made of low pressure polyethylene. The vertical ribs 10 of the body have a generally convex barrel-shaped arcuate profile in longitudinal section along the entire length and are equipped with profile stiffeners made in horizontal section B-B (Fig. 7 and 8) in the form of three protrusions-teeth 11 that extend outside in a line 12 (Fig. 8), which are part of the cross section of the base surface of the ribs, with the middle protrusion-tooth made the largest, and the edges of the protrusions-teeth made rounded small radii. The middle protrusion-tooth is made in a vertical section of a pronounced barrel-shaped arcuate shape (Fig.7). Other profile elements are also made barrel-shaped-arc-shaped, but may have a slightly different curvature from the middle protrusion-tooth.

The middle parts of the side walls 4 and 5 are made almost straight or may have slight curvature in the vertical section and with a large radius of curvature in the horizontal section and recessed into the body, i.e. sidewalls have protruding upper and lower parts. This was done specifically for the convenience of sticking labels and tags with information about the contents of this canister and for the greatest safety of these labels and tags during transportation, as damage due to friction is reduced (the contact area is reduced due to the exposure of this area). The front 2 and rear 3 walls are made of convex barrel-shaped with radii in the longitudinal and transverse sections, and in the cross section is the radius of large curvature.

The upper wall 6 has a recess 13 formed in the center along the longitudinal axis of symmetry of the canister and having straight sides on the top view, an arched shape at the back with relatively large radii of curvature and a front part covering the seat of the neck 9 and facing the front wall of the canister body. Thus, the upper part of the handle 8, in the presented embodiment, is made protruding above the plane of the upper wall 6 (Fig. 5). Stacking elements are made on the upper wall 6 of the housing 1 - support-fixing protrusions 14 in the form of a T-shape, as well as a rear protrusion (side) 15 of an arcuate shape, which is a continuation of the rear of the handle 8. In the main version, all three protrusions are made along the border of the recess thirteen.

On the bottom wall are made, respectively, protrusions on the upper wall, sockets 16 T-shaped (Fig. 2), as well as the front 17 and rear 18 recesses. These recesses can be made slightly different or the same, depending on the task. Under certain conditions, in the embodiment for free stacking, the recesses can be made of the same shape, which allows stacking to be placed in any of them - both the neck 9 with a stopper (not shown) and the rear protrusion (side) 15. Front 17 and rear 18 recesses connected by a longitudinal groove 19 (Fig. 2, Fig. 4) to accommodate the protruding part of the handle 8 when stacking.

In a longitudinal section, the handle 8 of the canister has a different profile and the middle and rear parts are raised relative to the horizontal surface 6, and the back part goes into the rear protrusion (side) 15. Thus, the handle and side 15 play the role of the rear support-fixing protrusion, and the corresponding opposed recesses 17 or 18 in the bottom wall 7 of the canister for the rear protrusion and the groove 19 connecting the recesses 17 and 18 for the handle 8, further contribute to the improvement of the stacking of the canister. Better stacking is also achieved through a T-shaped recess.

The described stacking elements prevent distortions and are designed to ensure that when stacking the canister is more stable in a horizontal position and is evenly stacked on top of one another for more even load distribution. The support-fixing protrusions 14 of the upper wall 6 of the body when stacking cans enter into sockets 16 on the bottom wall 7 of the canister, and the side 15 enters the back (in versions - any) of the recesses 17 or 18 with a minimum gap, which together prevent the canisters from slipping off relative to each other during storage and transportation. When stacking canisters, recesses 17 or 18, in which the horseshoe-shaped rim 15 does not fit, are used to grip the canister by hand. This is a useful constructive advantage of the canister. A variant of the canister with one lower recess is also allowed, although with this design the rigidity of the bottom wall decreases and the variability during stacking decreases.

The handle 8 is made in the form of a hollow rectangle with rounded ribs and is formed in the center of the upper wall of the canister, while one end of the handle is connected to the upper wall 6 and is located in excess of its plane, and the other is bent at an obtuse angle to the latter and forms an acute angle with the base of the recess thirteen.

The lateral walls 4 and 5 of the canister have in the middle part flat or slightly arched recessed surfaces, and in the lower protruding part are vertical oblong and semicircular recesses 20 in section, forming stiffeners.

In the upper wall of the canister, perpendicular to the handle, in the recess, there are protrusions (or concavities) 21 of a semi-oval shape (Fig. 3) that increase the rigidity of the upper wall, especially when operating a filled canister (for example, when lifting it sharply by hand).

Figures 9-18 show views of a canister depicting a portion of significant zones, as well as places of significant sections and corresponding sections.

Significant areas are indicated by a square hatch or a dashed line. When designating the zones, the letter “a” is added to the number of the corresponding position (Fig. 1-8). Sections are indicated by the capital letters of the Russian alphabet. Sections disclose in detail technical solutions that generally allow to obtain the necessary technical result.

In FIG. 12 shows the zones of the recesses 17a and 18a in the bottom wall of the body, affecting the increase in rigidity of the bottom wall 7, as well as the zones of the lateral vertical recesses 20a, affecting the increase of rigidity of the lower parts of the side walls 4 and 5 of the canister body.

In FIG. 13 shows a region 10a of a vertical rib that substantially affects the stiffness of the housing as a whole. The dimensions of the ribs calculated for this utility model provide their optimal design and the design of the canister as a whole. An important element is the execution of the ribs in the upper and lower parts, where in combination with the protruding upper and lower parts of the side walls, these parts of the ribs form a reliable execution of the corners of the canister from jamming them during operation.

In FIG. 14 presents the parameters for calculating the edges according to the utility model, taking into account the length (L) and width (B).

In FIG. 15, the place of the vertical section C along the middle (central) protrusion of the rib is indicated, and in FIG. Figure 16 shows the corresponding CC section with parameters for determining the curvature of the rib depending on the height of the canister body (H).

In FIG. 15 also shows the location of the vertical section T along the front wall 2 of the canister body, and in FIG. Figure 16 shows the corresponding TT section.

In FIG. 17 shows a zone 14a with a lateral support-fixing protrusion 14 on the upper wall, FIG. Figure 18 shows the F-F sectional location along this protrusion, taking into account stacking on a canister on top of another similar canister. In FIG. 17 also shows the area 15a of the rear protrusion (side) 15 on the upper wall, in FIG. 18 shows the locations of the sections U, F, X and, accordingly, these sections.

The canister is made by extrusion blow molding.

The material melted and homogenized in the extruder (low-pressure polyethylene) is squeezed out in the form of a tubular billet, which falls into the mold that is open by this moment. After the length of the workpiece reaches the required value, the half-molds are closed, clamping the lower and upper edges of the workpiece with their sides. When this occurs, the welding of the upper end of the workpiece and the design of the hole for the neck. After the mold closes, compressed air is supplied into this hole through the blow-out pin, under the influence of which the softened material of the sleeve is stretched in all directions and takes the configuration of the internal cavity of the form. As a result of contact with the cold walls of the mold, the polymer hardens, then the mold opens, the finished product is removed and sent for final processing - additional cooling, removal of burr, checking for leaks and mass. All stages of production are fully automated. If the leak test results are unsatisfactory or when weighing, the cans are rejected automatically. The volume of manufactured cans can be from 3 to 60 liters.

Due to its high strength, both liquid (including high-density) and solid substances can be transported in canisters. This utility model, having high strength, is less prone to deformation during storage and transportation, respectively, there are no leaks and loss of content. This allows you to achieve comparable strength with less polymer consumption. Thanks to this, the maximum economic effect is achieved.

Technical advantages are the creation of a canister that provides maximum body rigidity, increased strength characteristics, reliability and durability, as well as ease of manufacture and operation, simplicity and freedom of stacking.

Claims (21)

1. The canister containing the housing formed by the front, rear, side, upper, and bottom walls, a recess is made in the upper wall in the middle part, in which the neck and handle are arranged, the housing contains vertical ribs, stacking elements are made in the upper and bottom walls of the housing, the front and rear walls are made without flat sections and in the longitudinal section are barrel-shaped-arc-shaped, the vertical edges of the body have a convex barrel-shaped-arc-shaped profile in the longitudinal section along the entire length of the rib zone, including profile stiffeners, while the optimal curvature (K) of the rib is from 0.02 to 0.1 of the height of the canister (H), and the curvature (k) of the central part of the rib zone is from 0.005 to 0.1 of the height of the canister (H), characterized in that the side walls of the canister are made on the basis of a cylindrical surface with a pronounced the radius of curvature in a horizontal section in the middle zone, as well as in horizontal sections of the upper and lower parts of the side walls, moreover, measures of the ribs of the canister in cross section are calculated as follows 1) The longitudinal size of the ribs in the projection (L Ave.) = L / 5 ± L / 8, 2) The transverse dimension of the rib in the projection (L cross.) = B / 4 ± B / 6, where L is the length of the canister in the longitudinal direction in a plan view; B is the width of the canister in the longitudinal direction in a plan view. 2. The canister according to claim 1, characterized in that the vertical ribs of the body have three protrusions, while the middle protrusion is made larger than the others. 3. The canister according to claim 1, characterized in that the base surface of the rib is calculated in horizontal section in accordance with the longitudinal and transverse dimensions of the rib in the projection and is in this section a convex or straight line connecting the edges of the side walls with the edges of the front or rear walls body of the canister. 4. The canister according to claim 1, characterized in that the stacking elements on the upper wall of the canister are made in the form of three support-fixing protrusions. 5. The canister according to claim 1, characterized in that the three supporting-fixing protrusions on the upper wall are made along the boundaries of the recess:  the rear protrusion - in the form of an arched protrusion, repeating within the boundary of the recess, having approximately the same width, adjacent to the handle and having laterally in the adjoining areas of fillet with a radius of at least half the width of the protrusion, the upper parts of the handle and the rear protrusion are located on the same surface over the top wall of the canister; two lateral protrusions on both sides of the handle, T-shaped with an elongated longitudinal part and a shortened transverse part facing inward of the recess and ending at its border, the protrusions are located at the same distance from the longitudinal axis of the canister and in the middle of the length of the canister. 6. The canister according to claim 1, characterized in that the recess of the upper wall is made along the longitudinal axis of symmetry of the canister, tapering smoothly towards the neck, covering its seat and ending on the front wall of the canister body, while the recess in the longitudinal direction under the handle is made with the height of the opening sufficient to grip the handle by hand, and in the transverse direction with its smooth rise to the notch border located at the intersection of the notch with the upper wall of the canister, while the notch has elongated protrusions or concavities in the transverse direction, having a length in a plan view, component of at least 0.8 distance from the end of the handle to the border of the recess. 7. The canister according to claim 1, characterized in that the bottom wall has a profile and recesses, including for the corresponding placement in them of the support-fixing protrusions of the upper wall of the canister, namely  a front recess located under the neck, a rear recess made in the rear of the bottom wall, while the front and rear recesses are approximately U-shaped with the possibility of installing a lid or rear protrusion of the canister when stacking,  a recess made along the longitudinal axis of the bottom wall of the canister and connecting the front and rear recesses,  two T-shaped recesses made on both sides of the longitudinal axis of the bottom wall of the canister and located opposite to the corresponding T-shaped protrusions on the upper wall of the canister,  the middle part of the bottom recess of an approximately flat surface, passing along the perimeter of the recess to the rising part of its surface to the border of the bottom recess with the supporting surface of the bottom, while the middle part of the bottom recess has transverse elongated corrugations, and their length can be constant or increase from the middle to the perimeter canisters. 8. The canister according to claim 1, characterized in that the front and rear recesses in the bottom at any of the positions of the canister (both “plug above the plug” and 180 ° turn) are in opposition with the neck and rear protrusion on the top the wall of the canister body. 9. The canister according to claim 1, characterized in that the side walls have upper and lower protruding parts and a middle recessed part, while in the lower part there are vertical oblong lengths and semicircular recesses in the cross section, increasing its rigidity. 10. The canister according to claim 1, characterized in that the handle in the form of a hollow rectangle with rounded ribs is made in the recess of the upper wall, while one end of the handle (rear) is made integral with the rear protrusion of the stacking elements, and the other (front) is bent under a blunt angle to the latter and forms an acute angle with the base of the recess. 11. The canister according to claim 1, characterized in that the canister is made of low pressure polyethylene by extrusion blow molding.

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