DE102013207941B4 - Plastic containers - Google Patents

Abstract

Plastic container (100) with a base (102) and side walls (104) standing on the base (102), a receiving region (105) of the container being defined by the base (102) and the side walls (104), the base ( 102) has a running ring (200) on its side facing away from the receiving area (105), the base (102) having pockets (202) open to the outside (208) of the container, the pockets (202) through the base (102 ) and the running ring (200), the pockets (202) being formed by ribs (204) connecting the bottom (102) and the running ring (200), the ribs (204) being attached to them in the plane of the running ring ( 200) seen outer area have a recess (300) open to the outside (208) of the container, the recess (300) having a bottom side (304) and an upper side (302) facing the receiving area (105), the bottom side ( 304) opposite the top (302) in its in the plane of the L collar (200) seen outer area is resilient.

Description

The invention relates to a plastic container with tread.

Various plastic containers are known from the prior art. For example, this describes DE 40 06 188 C1 a transport box made of plastic with a bottom which is provided on its underside with ribs, which carry at the edge region a second circumferential bottom surface, which forms laterally open pockets with the bottom and the ribs. This construction of a transport box gives the ground a very high stability so that heavy industrial goods can be transported in the box. The second circumferential bottom surface makes it possible to transport the box on roller conveyors. For this purpose, the second bottom surface at its edge facing the center of the box has an obliquely upwardly extending section.

Next describes the DE 198 44 014 C1 a transport box made in one piece from plastic with a flat bottom in the central region of the box, under which there are at least two parallel runners in the edge region of the box, which are connected to the floor by ribs running transversely to the runners. By the runners, the transverse ribs and the bottom surface are formed outwardly and / or internally open pockets. In this case, the runners on the side facing the center of the box on a longitudinal portion, which is directed upward. The skids also have on their outer side a further longitudinal portion which is directed upward. The bottom of the box has in the edge region a downwardly inclined surface which is located above the runners, which has the same inclination as the outwardly directed longitudinal portion of the runner and which merges into the centrally arranged flat bottom surface.

The DE 299 08 668 U1 discloses a box-shaped container made of plastic, in particular a storage and transport box, with a bottom which is stabilized on its underside with stiffening ribs which carry in the region of the bottom edge a circumferential, formed by flat webs tread, which together with the bottom and two in the Distance adjacent, extending transversely to the bottom edge of the stiffening ribs free spaces that are designed as ground edge side or running inside open pockets or open on both sides passages.

Further, the DE 198 44 015 B4 a transport box made in one piece from plastic, with a flat bottom, below which are at least two parallel skids in the edge region, which are connected by ribs extending transversely to the runners with the ground. This transport box is characterized in that the runners on the side facing the center of the box pass into an upwardly directed rounding.

The invention has the object to provide an improved transport and storage container made of plastic.

The object underlying the invention is solved by the features of the independent claim. Preferred embodiments of the invention are indicated in the dependent claims.

It is a plastic container with a bottom and standing on the ground side walls, wherein a receiving area of the container is defined by the bottom and the side walls, wherein the bottom has on its side facing away from the receiving area a tread. In this case, the bottom to the outside of the container towards open pockets, wherein the pockets are formed by the bottom and the tread, wherein the pockets are formed by the bottom and the tread ribs connecting. The ribs have at their seen in the plane of the tread outer region on an open towards the outside of the container recess, wherein the recess has a bottom side and facing the receiving area top side, wherein the bottom side is resiliently formed with respect to the top.

In the context of the description, the term "running rim" is understood to mean that surface of the container with which the container at least partially rests on a floor surface. When rolling over a roller conveyor of the tread is the surface "run-up area", with which the plastic container runs on the rollers of the roller conveyor and then gets into contact with the rollers of the roller conveyor.

Embodiments of the invention could have the advantage of minimizing noise during sliding of the plastic container over the rollers of the roller conveyor. The resilient design of the outer edge of the tread gently cushioned when rolling the tread on a transport roller of the reeling. This softer cushioning minimizes the noise associated with rolling up.

Another advantage could be that vibrations of the plastic container are minimized by the softer curling. This makes it possible to transport such cargo in the plastic container, which is sensitive to shocks. These could be, for example, optical measuring instruments.

Further, the plastic container according to the invention could allow the low-cost production of the container in an injection molding process with low material costs. So it is not required solid material from which out the recess is formed.

According to one embodiment of the invention, the recess extends around the entire outside of the container. Thus, it does not matter in which direction the plastic container slides over the rollers of the roller conveyor. In every orientation there is a minimization of noise during sliding over.

According to one embodiment of the invention, the plastic container further comprises a groove extending on the bottom side of the recess, the groove extending parallel to the outside of the container towards which the recess is open. The groove may be straight or serpentine or zigzag parallel to the outside of the container. The extension direction of the groove is thus parallel to the outside of the container. Thus, if the recess extends around the entire outside of the container, the groove runs parallel to the associated outside around the entire container. The use of a groove could have the advantage that the resilient properties of the bake area of the container can be further optimized. For example, a very impact-resistant plastic could be used as the tread, which has only low resilient properties. By providing an additional groove, however, takes place in the region of the groove material thinning, so that thereby the spring action can be adjusted. This can be defined by the choice of a virtually arbitrary plastic for the tread, the spring property of the casserole area, that is, the recess.

Preferably, the groove is V-shaped, the recess terminating in a bounding wall with the tip of the groove facing the wall. The recess thus has in this case the said upper side, the bottom side, wherein the bottom side and the upper side are connected to each other by this limiting wall.

The use of a V-shaped groove could allow in a particularly simple manner to adjust the spring characteristics of the casserole. The reason could be that the V-shape in the material, a highly defined weakening is introduced, which allows the said spring action.

According to one embodiment of the invention, the thickness of the bottom side decreases in the region of the recess in the direction of the outside of the container. Thus, instead of the container abruptly coming to rest in the region of the recess on a roller of a roller conveyor, the decrease in the thickness of the bottom side, which is preferably continuous, results in a very smooth start-up and thus a continuous increase in the spring force. This leads to the noise being further minimized.

According to one embodiment of the invention, the bottom side is rounded at its outer edge facing the outside of the container. This also serves to optimize the emergence of the outer edge on a roller of a roller conveyor. An abrupt and thus noise developing emergence is avoided.

According to one embodiment of the invention, the recess ends by said limiting wall, wherein the wall itself is also rounded. The rounding of the wall further allows to precisely adjust the resilient properties of the bake area. By rounding off, however, the mechanical stability of the connection of the region of the recess is increased to the rest of the floor. There are no force peaks due to the rounding, so that the risk of breakage of the resulting by the recess run-area is minimized.

According to one embodiment of the invention, the bottom side opposite the top is so resiliently designed to reduce a running noise of the container on a roller conveyor when the tread moves over the roller conveyors.

According to one embodiment of the invention, the ribs forming the pockets run obliquely to the outer sides of the container. Since transport boxes are usually transported via roller conveyors aligned with at least one side wall parallel to the rollers, is ensured by the oblique arrangement of the pockets forming ribs that in most cases of transport of the plastic container via a roller conveyor, the majority of the ribs obliquely to the rollers is arranged. The container never rests with a rib parallel to a roll on the roll. This could avoid that, in particular, the container is in such a position for a long period of time, in which the container is located with the ribs in parallel between different roller conveyors. In other words, it could be avoided that in case of unfavorable positioning of the container, the ribs each come to rest so that they extend in the cavities between adjacent rollers parallel to these rollers. This could cause the area between the ribs to bend down towards the rollers. However, even a slight deformation would be sufficient here in case of a subsequent sliding of the container over the rollers due to the now existing unevenness of the tread a noise during overflow is increased. In this case, it could thus be prevented by inclined ribs that unintentional bending and thus shaking of the container when overflowing over the rollers.

The inclined ribs, in particular at an angle of 45 ° to the respective side walls thus also minimize the risk of noise when overflowing over a roller conveyor.

According to one embodiment of the invention, the limiting wall is formed by the ribs forming the pockets, the upper side also being formed by the ribs forming the pockets. Since thus the recess is preferably present only in the ribs themselves, the further technical is hardly or not at all affected by the recess by providing the recesses.

According to one embodiment of the invention, furthermore, a ribbed bottom in the middle of the bottom, relative to the outer sides of the container, is arranged on the ribs forming the pockets. The ribs forming the pockets thus completely surround the ribbed bottom. This makes it possible to optimize the container properties in terms of their carrying capacity by a special design of the ribbed floor and at the same time to optimize the running characteristics of the container via a roller conveyor by a corresponding configuration of the pockets forming ribs.

For example, the ribs of the ribbed bottom could run perpendicular to the outer sides of the container, whereby in particular a power transmission from the container center to the container outer sides can be optimized. The ribbed bottom thus leads to an unintended bending of the soil in the region of the ribbed bottom is reduced. Preferably, the ribbed bottom is additionally concave, that is curved in the direction of the container interior. This also helps to increase the carrying capacity of the container when loading at high loads. Forces acting on the container bottom in the middle are transmitted uniformly outwards in the direction of the outer walls or in the direction of the ribs forming the pockets and from there onto the tread.

According to one embodiment of the invention, the tread and the bottom and / or the pockets forming ribs are integrally formed. For example, these could be made by injection molding.

According to one embodiment of the invention, the tread and the floor have different materials. Thus, for example, a material can be selected for the tread, which optimizes the noise properties when overflowing the tread over a roller conveyor in a particularly efficient manner. With respect to the bottom and the rest of the container, however, a material could be selected, which is particularly impact resistant and stable.

It should be noted that the above-described embodiments of the invention can be combined with each other in an arbitrary manner, as long as the combined embodiments are not mutually exclusive.

Embodiments of the invention are explained in more detail below with reference to the following drawings. Show it:

1 a schematic view of a transport and storage container made of plastic,

2 a side view of a container,

3 an enlarged sectional view of the 2 .

4 a view of a bottom of the container the 1 .

5 a view of a container bottom,

6 a side view of another container.

Hereinafter, similar elements will be denoted by the same reference numerals.

The 1 shows in a perspective view a plastic container 100 for transporting and storing general cargo with soil 102 and sidewalls 104 , which squeezes on the floor 102 get up. Through the floor 102 and the side walls 104 becomes a recording area 105 defines the container in which the cargo can be accommodated.

It can also be seen in 1 Bags 202 , which are open to the outside of the container. The bags are going through the floor 102 and a treadmill 200 of the container 100 educated. ribs 204 connect the soil 102 with the treadmill 200 ,

This is in more detail in the sectional drawing of 1 AA in the 2 seen. The container 100 can with his treadmill 200 on a surface can be set up. For example, the surface may be transport rollers of a roller conveyor. As further in the 2 can be seen, joins the tread 200 towards the center of the vessel (ie opposite to the direction to the outside 208 the container) another area 206 through which the bottom of the container is concave towards the receiving area 105 seen the container is formed. Now push loads through the cargo to the ground 102 , This is done by an optimal power transmission to the tread 200 , Besides, it is possible that the ground 102 to a lesser extent due to the concave shape of the section 206 bends down.

In the 3 is in an enlarged view of the outside 208 facing edge region of the tread 200 shown. As can be seen there, shows the tread 200 at its outer area seen in the plane of the tread one to the outside 208 the container open recess 300 on. The recess has a bottom side 304 and an upper side facing the receiving area of the container 302 on. According to the above description is the bottom side 304 opposite the top 302 resilient.

Furthermore, it is on the bottom side 304 the recess a groove 308 in the treadmill 200 , where the groove 308 V-shaped. The tip of the V-shape points to the reference numerals 310 marked limit.

The boundary is through one of the ribs 202 educated. In the embodiment of 3 So is the recess 300 a recess which in the rib 202 was formed. The with reference numerals 310 characterized element is thus a rounded bounding wall, which through the rib 202 is formed.

It can also be seen in 3 that on the one hand the thickness of the bottom side 304 in the area of the recess 300 towards the outside 208 the container steadily decreases. Moreover, at the front is towards the outside 208 towards the bottom side 306 rounded.

Now runs the in 3 apparent container to the right on a conveyor roller, not shown, so is the impact of the rib 202 tongue-shaped projecting tread on the role of the tread first with its bevel 306 accrue to the role. Due to the freestanding tongue shape is the treadmill 200 resiliently formed in its front region, which is due to the presence of the groove 308 is further strengthened. When running onto the conveyor roller on the container 100 acting forces are mitigated by the resilient yielding of said tongue. As a result, the noise that occurs when the container runs on a conveyor roller, minimized.

The 4 shows a perspective view of the relative to the 1 - 3 discussed container 100 , where it is even clearer to see how the recess 300 through a material recess on the ribs 204 is realized. Outside of the container 100 are the ribs 204 So not to the outer edge of the tread 200 pulled through, but in this area is material of the ribs 204 spared.

The 5 shows the container 100 in a top view on the floor from below. The ribs normally invisible in this view 204 have been shown schematically for the sake of completeness, these being in reality by the tread 200 are covered. As mentioned above, through the floor 102 and through the treadmill 200 as well as by the employed at 45 ° to the outer walls ribs 200 a set of bags 202 educated. Ribs 204 run diagonally to each other in each quadrant of the container bottom. The ribs of adjacent quadrants meet one another only in sectional lines, which in each case bisect the container bottom in the longitudinal and transverse sides.

Further apparent in the 5 is the groove shown schematically 308 which extends continuously parallel to the outer sides of the container on the tread. It can be seen in 5 a ribbed floor 402 , which is adapted to the in 2 discussed bevel 206 the bottom of the tank in the central area. Ribs 400 this ribbed floor 402 are perpendicular to the outer sides of the container.

While the slanted ribs 204 serve primarily to reduce the running noise of the container via a roller conveyor, serve perpendicular to the outer walls provided ribs 400 an optimal power transfer from on the ground 102 resting load of the container on the treadmill 200 , Overall, this means that generally speaking two different rib geometries are used for the central ribbed bottom and the adjoining pockets of the container.

In the 1 - 5 Thus, a variant of a plastic container was discussed, in which the suspension of the edge region of the tread by a recess of the ribs 204 was realized.

In the 6 an alternative variant is shown in which the pockets 202 below the floor, including the ribs 204 are also kept unchanged in the outer area of the container. Instead, it became a special treadmill 200 chosen, whereby now the Laufranz 200 even the said recess 300 having. In this case are in the tread due to the recess 300 the said bottom side 304 and the top said 302 created.

In the variant of 6 It could be beneficial if the recess 300 is further divided into different chambers by webs not shown in detail. Although it could be weakened in the region of the webs, the spring action of the tread. However, the overall stability of the container is increased overall by the provision of the webs.

Although in 6 the continuous decrease in the thickness of the tread (cf. 3 , Reference number 306 ) is not shown in detail, it is understood that such a variant of the tongue-shaped ramp portion of the tread may be provided.

LIST OF REFERENCE NUMBERS

100

container

102

ground

104

Side wall

105

reception area

200

tread

202

bag

204

rib

206

concave area

208

Outside of the container

300

recess

302

top

304

bottom side

306

Area

308

recess

310

rib edge

400

ribs

402

ribbed floor

Claims (15)

Plastic container ( 100 ) with a floor ( 102 ) and on the ground ( 102 ) standing side walls ( 104 ), whereby through the ground ( 102 ) and the side walls ( 104 ) a receiving area ( 105 ) of the container, the bottom ( 102 ) on its receiving area ( 105 ) facing away from a tread ( 200 ), the soil ( 102 ) to the outside ( 208 ) of the container open pockets ( 202 ), wherein the pockets ( 202 ) through the ground ( 102 ) and the treadmill ( 200 ), the pockets ( 202 ) through the ground ( 102 ) and the treadmill ( 200 ) connecting ribs ( 204 ), the ribs ( 204 ) at her in the plane of the treadmill ( 200 ) outer area one to the outside ( 208 ) of the container open recess ( 300 ), wherein the recess ( 300 ) a bottom side ( 304 ) and one to the receiving area ( 105 ) facing the top ( 302 ), wherein the bottom side ( 304 ) opposite the top ( 302 ) in her in the plane of the treadmill ( 200 ) Seen outer region is resilient. Plastic container ( 100 ) according to claim 1, wherein the recess ( 300 ) around the entire outside ( 208 ) of the container. Plastic container ( 100 ) according to claim 2, wherein the recess ( 300 ) throughout the entire outside ( 208 ) of the container. Plastic container ( 100 ) according to one of the preceding claims, further comprising a on the back of the bottom side of the recess ( 300 ) extending groove ( 308 ), whereby the groove ( 308 ) parallel to the outside ( 208 ) of the container, towards which the recess ( 300 ) is open. Plastic container ( 100 ) according to claim 4, wherein the groove ( 308 ) Is V-shaped, wherein the recess ( 300 ) by a limiting wall ( 310 ) ends, the tip of the groove ( 308 ) to the wall ( 310 ). Plastic container ( 100 ) according to one of the preceding claims, wherein the thickness of the bottom side in the region of the recess ( 300 ) towards the outside ( 208 ) of the container decreases. Plastic container ( 100 ) according to claim 6, wherein the thickness decreases steadily. Plastic container ( 100 ) according to one of the preceding claims, wherein the bottom side ( 304 ) on her to the outside ( 208 ) of the container towards the outer edge is rounded. Plastic container ( 100 ) according to one of the preceding claims, wherein the recess ( 300 ) by a limiting wall ( 310 ) ends, the wall being rounded. Plastic container ( 100 ) according to one of the preceding claims, wherein the ribs forming the pockets ( 204 ) diagonally to the outer sides ( 208 ) of the container. Plastic container ( 100 ) according to one of the preceding claims 9 or 10, wherein the limiting wall ( 310 ) through the ribs forming the pockets ( 204 ) is formed, wherein the top ( 302 ) through the ribs forming the pockets ( 204 ) is formed. Plastic container ( 100 ) according to one of the preceding claims, wherein a ribbed bottom ( 400 ) in the middle of the ground ( 102 ) relative to the outer sides ( 208 ) of the container ( 100 ) seen at the ribs forming the pockets ( 204 ) is arranged. Plastic container ( 100 ) according to claim 12, wherein the ribs ( 402 ) of the ribbed floor ( 400 ) perpendicular to the outer sides ( 208 ) of the container ( 100 ). Plastic container ( 100 ) according to one of the preceding claims, wherein the tread ( 200 ) and the ground ( 102 ) are integrally formed. Plastic container ( 100 ) according to one of the preceding claims, wherein the tread ( 200 ) and the ground ( 102 ) and / or the ribs forming the pockets ( 204 ) have different materials.

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