CN109789722A

CN109789722A - Plastic containers

Info

Publication number: CN109789722A
Application number: CN201780059351.1A
Authority: CN
Inventors: 达伦·绍尔; 肯尼斯·坎贝尔; 基思·鲁克维纳; 戴维·贝肯
Original assignee: KW CONTAINER
Current assignee: KW CONTAINER
Priority date: 2016-08-01
Filing date: 2017-08-01
Publication date: 2019-05-21
Also published as: CA3032808A1; US20190177039A1; CL2019000267A1; MX2019001356A; WO2018026839A1; EP3490809A1; AU2017305307A1; BR112019001929A2; EP3490809A4

Abstract

Non-cylindrical plastic paint container with handle.

Description

Plastic containers

Statement about priority

This application claims the priority of on August 1st, the 2016 U.S. Provisional Patent Application No.62/369,581 submitted and entirely Portion's equity.

Technical field

The field of the invention is the plastic containers for fluid.

Background technique

Although the plastic containers for fluid have significantly been evolved in the past few years, but still there are traditional cylinders The unsatisfied important need of container.

Most important demand first is that reducing the traditional still unsolved transportation cost of hydrostatic column.Firstly, with this hair It is bright to compare, hydrostatic column at the time of contact between them have biggish space, and the region mean it is smaller The content of volume can be (being arranged in the space with particular size (for example, cargo with trailer bus)) It is transported in each container.Secondly, hydrostatic column cannot be nested when sky, therefore multiple empty containers are stacked to be transported to The factory for filling them also considerably increases the quantity for being not filled by unit that can be loaded to be shipped.

The problem of another long-term existence is dry coating, such as coating fluid after focusing in container edge After (such as after being poured or dripping from paint brush) is dried, U-shaped channel inner product of the dry coating in container edge It is poly-.The fluid or coating of drying in edge, which tend to make to reseal container, to be become difficult, because the channel in edge is (for connecing It may Na Gai) be blocked.

In addition, stability of the container being loaded when stacking is always a concern.

Similarly, coating is poured into roller disk to the coating that can generate waste, because coating is widely used simultaneously in roller disk It dries there, or adhere at least to the coating on roller disk to return in container.

Therefore, it is necessary to a kind of plastic containers to solve the above problems.

Summary of the invention

The present invention disclosed herein is a kind of non-cylindrical plastic containers, which, which has to provide, is better than existing skill Multiple novel features of the advantages of art.In one or more embodiments, plastic containers are improved rectangular prism, Huo Zhegeng Specifically improved square prism.It is substantially rectangular cross-sectional configuration or just to mean that prism has used here as term " improved " Rectangular 3D shape (in addition to there are four other than tapered sidewalls at least part of rectangular or square prism tool), and from this For in a meaning, container is rectangular or square at the top of it, and in various embodiments, container can have rounding Corner or angled corner.Therefore, improved rectangular or square prism is rectangular or square frustum.In addition, Other embodiment can have the shape in addition to rectangular or square at top, if the shape be it is non-cylindrical i.e. It can.

Detailed description of the invention

Fig. 1 is the perspective view of the embodiment that do not cover of the invention.

Fig. 2 is an embodiment of two buckets of the invention with 45 degree of sectional view, and described two buckets do not cover, wherein One bucket is nested in another bucket.

Fig. 3 is the sectional view of an embodiment of the bucket not covered of the invention, and an interior table of side wall is shown Face has the ridge of chevron pattern, and shows the side wall of taper, and the side wall of the taper depicts the more broader than its bottom of bucket and opens Mouthful.

Fig. 4 is the sectional view of the embodiment comprising fluid of the invention, which has sealing to edge Lid, and be stacked on the top of lid of another embodiment of the invention, which, which has, surrounds Fig. 4 A and Fig. 4 B The circle of the feature of middle amplification.

Fig. 4 A is the enlarged drawing of a part of Fig. 4, show when a container stack of the invention another container it When upper, how stacked rings are located on the outside of stacking ridge just is covered.

Fig. 4 B is the enlarged drawing of a part of Fig. 4, shows sealing to the lid at edge and top, the nested ridge of side wall With the top of the lower part of side wall.

Fig. 5 is the top view of an embodiment of the bucket not covered, and it illustrates ridge (the roller dish carts on opposite inner wall Face) and lower part on the right side of corner on separation protruding portion, and further depict the size of the opening compared to container, side wall to Under the smaller size for how generating the bottom of container become narrow gradually.

Fig. 5 A is the enlarged drawing for separating an embodiment of protruding portion.

Fig. 5 B is the perspective view in a corner of an embodiment of container, and the lid of the container is fixed in edge and moves In addition to separating protruding portion.

Fig. 6 is view and the description at the top (that is, the side for the facing external covered when lid is fixed in edge) of lid Stacking ridge near the outer edge of lid.

Fig. 7 is the side view in the section of lid.

Fig. 8 is there are two the sectional view of a part for the embodiment covered, and how it illustrates the two lids can be with Bucket separately stacks.

Fig. 9 is the face upwarding view of bucket of the invention.

Figure 10 is the sectional view of the embodiment of bucket, which includes with the continuous side wall in inclined-plane, that is, without such as Fig. 1 to figure 4, three parts in Fig. 4 B and Fig. 5 B.

Figure 11 is the more detailed view such as the locking mechanism of lid and edge in Fig. 4 and Fig. 4 B.

Figure 12 is the plan view of the front side of an embodiment of handle.

Figure 13 is the side view of the handle of Figure 12.

Figure 14 is the top view of the protruding portion taken, i.e. vertical view protruding portion.

Figure 15 is the side view of the protruding portion taken.

Figure 16 is the plan view such as the rear side of the handle in Figure 12.

Figure 17 is the sectional view of the protruding portion taken.

Figure 18 is the perspective view for the handle being inserted into the slot on bracket, wherein handle is against side wall.

Figure 19 is the perspective view for the handle being inserted into the slot on bracket, wherein handle is in will be perpendicular when being grasped by user Straight position.

Specific embodiment

In one embodiment, the present invention is a kind of plastic containers 1, which includes that barrel 1A and size are suitable for bucket Lid 16, the bucket include edge 2, side wall 26, corner 12 and the bottom of the opening 14 close to bucket, and each side wall has Width 29 and two including being integral with boundaries 30, one in each boundary and corner are integral and also and bottom 10 is integral, and each side wall further includes top 15, nested ridge 25 and lower part 3, and the top includes close to the first of opening End and the second end integral with the nested ridge, and the lower part include the first end integral with the nested ridge and with The integral second end in the bottom, the width 29 that the lower part of each side wall has near nested ridge have than in bottom Width it is bigger so that the aperture efficiency bottom of bucket is wider, and when removing lid and bucket is empty barrel, a bucket can be nested in In another bucket.The size of bucket and lid is fitted to each other and respectively has corner 12.In one embodiment, container includes four Side wall 26, and the opening of bucket, edge and lid are configured to rectangle, or in another embodiment, opening, edge and the lid of bucket Forming is square.The above-mentioned shape profiling of bucket is extended about to the rectangle truncated cone of bottom from nested ridge.Implement one In mode, corner 12, edge 2 and the lid 16 of bucket 1A is rounding.In one embodiment, lower part 3 in each of side wall 26 Including inner surface 11, and at least one of inner surface 11 includes ridge 7.Ridge 7 can be set such that its it is approximate horizontal or It is parallel to the bottom of bucket 10, i.e. ridge 7 is non-vertical.The shape of ridge 7 can selected from by straight line, curve, wave, chevron pattern, A series of or group of protrusions or the other shapes composition being arranged at random or irregularly.In addition, as it is used herein, " water It is flat " or " parallel " broadly to mean ridge 7 not be vertical, therefore when applying coating roll, ridge can contact the major part of roller Width, to remove extra coating from roller.

In one embodiment, edge 2 includes the separation protruding portion 6 of one or more corner portions in corner 12, when Separation protruding portion is from edge 2 when fractureing, do not leave hinder to reseal lid 16, fluid (such as coating) can concentrate wherein And dry channel 20.

In one embodiment, lid 16 include outer edge 28 and stack ridge 17, in one embodiment, stack ridge 17 be Continuous or nearly singular integral ridge near the outer edge 28 of lid, and bucket 1A further includes and the bottom 10 of bucket, side wall 26 and corner 12 Integral stacked rings 9, stacked rings 9 are slightly wider than the stacking ridge 17 of bottom container, allow a container stacked rings 9 extremely Closely cooperate and stacking around ridge 17 and preventing the bucket filled with content (on the top that the piled barrels is stacked in another barrel) Sliding.The size for stacking ridge 17 and stacked rings 9 allows to by being placed on the stacked rings 9 of a bucket separately adjacent to ridge is stacked The stability when stacking two or more containers is realized on the lid 16 of one container.

In all of the embodiments of the present invention, lid 16 further includes U-shaped channel 18, and when seated, U-shaped channel 18 faces bottom Portion 10, and edge 2 further includes the U-shaped channel 20 backwards to bottom, and the U-shaped channel 18 of lid includes three protrusions E, F, I, and side The U-shaped channel 20 of edge includes three protrusions D, G, H, one in the protrusion of each corresponding edge in the protrusion of lid, is made Will lid U-shaped channel indentation edge U-shaped channel in formed from it is described lid and edge complementation or corresponding three pairs of protrusions (A、B、C)。

In another embodiment, container includes the lid 16 that barrel 1A and size are suitable for bucket, and the bucket 1A includes opening in bucket The edge 2 and side wall 26 of opening 14 are limited at mouth end, each side wall includes width 29 and two boundaries 30, each side One in boundary and corner 12 is integral, and the side wall is also integral with bottom, each width near opening ratio the bottom of at It is bigger at portion, so that one bucket can be nested in another bucket when lid is removed and bucket is empty barrel.That is, should Bucket in embodiment is without nested ridge, but side wall 26 includes the continuous inclined-plane started near the opening of bucket, and side wall 26 is integral in the bottom of its other end and bucket.The above-mentioned shape profiling of bucket is from opening nearby (i.e. from intilted recess G the rectangle frustum of bottom) is extended to.In addition, in this embodiment, side wall 26 does not have top or lower part.With side wall The embodiment of the bucket of 26 (side wall has continuous inclined-plane) is also possible to rectangular or square, and the corner with rounding has Ridge 7 on one or more inner surfaces of side wall has the separation protruding portion 6 on edge, has the stacking on lid 16 Ridge 17 and the stacked rings 9 on bucket, these are all as described in above embodiment.The embodiment can be with right and wrong at top Cylindrical any shape.The size of bucket and lid to be fitted to each other and respectively has corner 12.The opening of bucket is at top Overall dimensions are more wider than at the bottom of bucket, and side wall 26 inwardly becomes narrow gradually until bottom 10, opening of the bottom 10 than bucket 14 size is narrower.Therefore, this, which becomes narrow gradually, allows before filling fluid (such as ship from production facility to coating material production During the facility of quotient), a kind of version of bucket is nested in another example of bucket as needed.With the tank of the prior art It compares, this allows freight charges to substantially reduce.

In one embodiment, the present invention has the separation protruding portion 6 in a corner, the separation when user's pressing Protruding portion will be torn, so that the corner is transformed into nature pour spout.During toppling over, on the edge of prior art container U-shaped channel (either metal or plastics) be filled with coating.This has cleaning problem for closed container.Remain in side Coating in the U-shaped channel of edge 2 is then dry, and makes to cover and be more difficult to open and close in the use in future.Separation protrudes Portion 6 and U-shaped channel 20 is moved to beyond side wall 26, solves these problems.U-shaped channel is moved to and is also increased beyond side wall The size being open relative to edge is added, which is connected to side wall and extends internally from side wall.

At least one set of ridge 7 is prominent on the inner surface of at least one of side wall 26, has imitated conventional flat roller disk Bottom.This allows bucket to be used together with the roller 4 " without individual roller disk, therefore is more convenient and reduces to remain in individually The waste of coating in roller disk.

In one embodiment, plastic containers include the lid that bucket and size are suitable for bucket, the bucket include edge, bottom, The oral area at open end limited by four side walls, and each side wall include two boundaries and with each boundary On four corners in a corner it is integral, each side wall further includes top, nested ridge and lower part, the edge with The top of the side wall is integral and the edge includes separation protruding portion, each top and multiple nested chi chungs A nested ridge it is integral, a lower part Cheng Yi in the one nested ridge and multiple lower parts of the multiple nesting chi chung Body, the one lower part and bottom in the multiple lower part are integral, and width of the lower part near nested ridge is greater than The width of bottom a, so that bucket in multiple buckets can be nested in the multiple bucket in the case where the attachment of no lid In another bucket.The above-mentioned shape profiling of bucket is extended about to the rectangle frustum of bottom from nested ridge.There are four tools In this of side wall and four corners embodiment, opening, lid and edge are in the rectangular shape in the corner with rounding, and another In one embodiment, rectangle is square.Herein, lid includes close outer peripheral stacking ridge, and bucket further includes stacked rings, And size integral with bottom is slightly larger than ridge is stacked on the periphery of bottom for the stacked rings, therefore, for stability, the one of bucket The stacked rings of a example can be located in just on the outside of the stacked rings of the lid of another container.

Exemplary embodiments of the present invention are further described in attached drawing.

Fig. 1 is the first perspective view for not being attached an embodiment of bucket 1A for handle or lid 16.Edge 2 (including outside it Wall 21) it is fixed to bucket, which includes four side walls 26, and (these three parts shown pass through holder combination together), this four A side wall 26 is generally plane and including top 15, nested ridge 25 and lower part 3, and each side wall and two corners 12 are at one Body, in various embodiments, the two corners can be rounding or angled.In Fig. 1 to Fig. 4, side wall 26 What top 15 was generally vertical, but in other embodiments, the gradient on top 15 can change.Under each of side wall Portion 3 is also integral with bottom 10.Bracket 4 is fixed to the opposite two sides at edge 2, and each bracket is mentioned with receiving is used for The hole 5 of hand, the handle have protruding portion 31,32.Separation protruding portion 6 can mark as pressing " or the like, and separate prominent Portion 6 is molded to the corner on the top at edge 2 out.Ridge 7 shown partially is the interior of one or more of lower part 3 of side wall 26 Protrusion outstanding on surface 11, one of ridge are as shown in Figure 1.In one embodiment, in two or more inner surfaces There are one group of ridges 7 on 11.The opening 14 of bucket 1A is limited by the top 15 of edge 2 and side wall 26.

Fig. 2 is two buckets with 45 degree of sectional view, the two buckets do not save content and are nested together.Embedding It covers in the bucket in another barrel, one group of ridge 7 is shown on the inner surface 11 of the lower part 3 of side wall 26.When a bucket insertion is another At a barrel, the side wall 26 of a bucket drops to the inner surface of another barrel with (extending around the bottom of bucket 1A 10) stacked rings 9 Between the width that allows, so that the bottom 10 of a container is close to the bottom of another container 10.Fig. 2 is also shown, real one It applies in mode, the nested ridge 25 in interior bucket is connected on the edge 2 of the nested bucket of the interior bucket.Nested ridge 25 on the bucket of top Other positions are connected on the bucket of lower part.On the inside of nested ridge 25, exist between the top of side wall 26 15 and lower part 3 inside Inclined-plane 27, this makes the inner width of barrel 1A narrow to outer inclined-plane 27.Opening 14 is the open end at the top of bucket 1A.

Fig. 3 is the sectional view of the single instance of whole container 1, and whole container 1 is that is, bucket 1A seals the lid of bucket with insertion 16.In this embodiment, the lower part 3 of bottom 10, edge 2 are angled inwardly by the size to narrow to outer inclined-plane 27 and also Show ridge 7 and side wall 26 the becoming narrow gradually from broader opening 14 on the inner surface 11 of the lower part of side wall 26 3.Cause This, as shown in Fig. 2, bottom 10 has than the 14 narrower width that are open, this allows top bucket to be nested in the bucket of lower part.

Fig. 4 is the sectional view for showing the whole container 1 (bucket 1A and lid 16) for accommodating fluid, and 1, the container being loaded In the top of the lid 16 for lower part bucket (not shown).Also show in cross section stacked rings 17.

Fig. 4 A is the illustration of a part in the section in Fig. 4, and shows lower part 3 and the stacked rings of the side wall 26 of top bucket 9, stacked rings 9 just on the lid of bottom container 16 stacking ridge 17 outside.Obstruction by stacking ridge 17 prevents from stacking Ring 9 slides.In one embodiment, lid has U-shaped channel 18 and channel foot 19, and when installing lid 16, U-shaped channel 18 is towards appearance The bottom 10 of device.

Fig. 4 B is the illustration of the sectional view of the locking mechanism at the edge 2 and lid 16 in an embodiment of container 1 in Fig. 4, But other mechanisms are also possible in other embodiments.The U at the structure insertion edge 2 including ridge E and the lid 2 of protrusion F In shape channel 20.The bottom in channel 20 is the bottom disconnected when separating protruding portion 6 and separating with edge 2.

Fig. 5 is the top view of the bucket 1A with edge 2 and separation protruding portion 6 but without lid attachment looked down.It is real one It applies in mode, bottom 10 (more narrower than opening 14) is at the line labeled as 23 with side wall 26 (being here illustrated as inner surface 11) at one Body, and show the multiple groups ridge 7 on two in the inclined inner surface 11 of side wall 26.In various embodiments, side wall It can be with the interconnecting piece of bottom angled or rounding.

Fig. 5 A is the detailed view of separation protruding portion 6 in one embodiment, and separation protruding portion 6 is in one embodiment It can by the connection part 22 being broken of the outer wall 21 along edge 2 and also pass through point on the outer wall 21 that is molded into edge 2 Edge 2 is connected to from the additional interconnecting piece 22 being broken on each end of protruding portion.User is torn by pressing down on These connection parts 22 that can be broken (quantity for the interconnecting piece 22 that can be broken can change) are broken off protruding portion 6.Or it replaces Dai Di, in another embodiment, in the region of separation protruding portion 6, there may be the substantially reductions in channel 20, so that U The entire bottom in shape channel 20 or the edge 2 in the region of separation protruding portion 6 include the single connection part 22 that can be broken.

Fig. 5 B is in one embodiment in the detailed view for the rear cover 16 for removing separation protruding portion 6, and it illustrates tearing The connection part 22 being broken after opening.

Fig. 6 is the top view of lid 16, which includes the outer edge 28 of stacked rings 17 and lid.

Fig. 7 is the sectional view of lid 16, and it illustrates stacked rings 17.Also show the outer edge 28 of lid.

Fig. 8 is sectional view of two lids 16 when stacking to ship.Fig. 8 also shows the element 19 of lid, and element 19 is The outer wall of the U-shaped channel 18 at edge 16.

Fig. 9 is the bottom plan view of barrel 1A, this view show that bottom 10 than bucket top (as shown in edge 2) more Narrow, this is partly due to the inclination of the lower part 3 of side wall 26.

Figure 10 depicts an embodiment, and wherein side wall 26 and its inner surface 11 include since opening 14 and at bottom Become narrow gradually to the continuous inclined-plane of narrower width, that is, wherein side wall do not have as shown in Figure 1 to Figure 4 shown in upper and lower part and Nested ridge.Other than the upper and lower part of side wall and nested ridge, the embodiment is other using above-mentioned other embodiment Feature.

Figure 11 depicts the locking mechanism of the embodiment for this paper convention.Figure 11 illustrate in greater detail with Fig. 4 and The identical structure of lid and edge of Fig. 4 B.Three sealings/latch combination A, B, C is shown herein (by being merely to illustrate mesh Circle surround), the connection that these combinations pass through the corresponding protrusion pair of the U-shaped channel 20 of U-shaped channel 18 and edge from lid It connects and generates.Figure 11 shows the lid 16 being mounted in (sealing is extremely) edge 2.In sealing/latch A, the top H of side wall 26 (compared with the top of side wall 26 15, top H, which has, to be engaged to outer inclined-plane J) by recess I.In sealing/latch B, side wall 26 Inside angled recess G (top 15 to outer inclined-plane J since angled recess G) pass through protrusion F engagement.In sealing/latch C In, the ridge E covered passes through the shoulder D engagement on edge 2.

In one embodiment, when installing lid 16, there are overtravel (over- for multiple positions near combination A, B, C Travel) K (i.e. unfilled volume) is sealed and is resealed to edge with enough flexibilities to allow to cover, while Do not have to reduce the damage to structure in the case where space.The physical location of overtravel K can be different from position shown in Figure 11, Because lid and the movement of edge relative to each other are dynamic in and after telescopiny.In other embodiments of the present invention In, may exist less or even without overtravel, because the size of the U-shaped channel 20 of the U-shaped channel 18 and edge 2 of lid 16 can To cooperate as snugly as possible.

In another embodiment, container 1 further includes handle 30, and handle 30 can be overall structure and by plastics system At handle 30 includes band 33, and band 33 has from the protruding portion 31,32 with close two ends outstanding.Such as Figure 12 to Figure 19 Shown, each bracket in multiple brackets 5 is fixed to the outside of barrel 1a relative to one another, and each bracket includes slot 4.It is prominent The size and shape of portion 31,32 and slot 4 allow protruding portion 31,32 to pass through slot 4 in one direction using power, but allow mutual Lock, prevent protruding portion 31,32 from remove on other all directions from slot (including when handle 30 in stand up position using simultaneously When bearing the load of container 1).

Referring to Fig.1 2 to Figure 17, handle 30 includes band 33, and band 33 has outstanding close to the prominent of two ends from the band 33 Portion 31,32 out.In a unshowned embodiment, each end of band 33 and the nut cap of the planar recess from band are integral, Protruding portion 31,32 is located in the nut cap.In Figure 12 into Figure 17, protruding portion 31,32 is prominent from the main body of band 33.Preferably, it mentions Hand 30 is symmetrically that wherein one end is the mirror image of the other end, therefore will be described only about one end.It should be understood that this Kind description is equally applicable for the individual features of the other end.

Band 33 relative to 1 long enough of container with camber square on container 1, it is excellent when protruding portion is attached to bracket Selection of land has enough gaps between band 33 and the lid 16 of container, so that people grasps handle without by the dry of the lid from container It disturbs.

Protruding portion 31,32 includes three-dimensional head N, and head N is narrows gradually to narrower top M from broader base portion R.? In one embodiment, head N is attached to band 33 or nut cap by column O.The cross section of the head N of protruding portion 31,32, which can be, appoints What shape, the shape allow it to be inserted into the slot 4 of bracket 5 and become in one direction in other any directions and bracket 5 interlockings, the shape include but is not limited to ellipse, rectangle or spherical.This usually requires that cross section has long axis and short axle Line, wherein long axis is longer than minor axis.Therefore, shape described below is all illustrative in all respects.

Head N is frustum, which can be regular or irregular, and limits the transversal of its base portion Face can be any shape usually with long axis longer than minor axis, which includes, for example, rectangle, ellipse, side Round or spherical.Head N include top M, on the direction of minor axis limit head thickness opposite minor axis surface P, The opposite minor axis surface P is connect with the opposite long axis surface Q for the width for limiting head on long axis direction.? In one embodiment, the surface Q of head N is narrows gradually to relatively narrow top M from wider base portion R.As shown in figure 14, frustum The thickness of body needs not be uniformly from bottom to top, and in a preferred embodiment, thickness gradually subtracts near the M of top It is small.In one embodiment, the cross section of head N is rectangle, and in another embodiment, the short side of rectangle is (along short axle The direction of line) it is convex.In one embodiment, long axis surface Q can be convex or bowed.In Figure 15, Tu17Suo In the embodiment shown, head N has the uniform cross section of the certain distance since base portion R.In a preferred embodiment, Minor axis surface P can be convex, so that the cross section at the base portion R of frustum is the rectangle with the corner of rounding And the cross section is close to round at the M of top.When in the slot 4 of head N insertion bracket 5, this shape reduces head N Deformation.The column O of protruding portion 31,32 can base portion R substantially than head N width it is narrower, and in one embodiment, Column O is circular on cross section.Protruding portion 31,32 is solid and is overall structure with band 33 or nut cap.Work as protruding portion 31, when in 32 insertion grooves 4, handle can be rotated freely with the big arc limited by opposite two sides.

Claims

1. a kind of plastic containers, the container includes the lid that bucket and size are suitable for the bucket, and the bucket includes side wall, corner, bottom The top at the edge in portion and the opening in the bucket, the edge and each side wall is integral, and each side wall has width Spend and including two boundaries, each side wall on each boundary in the boundary with a corner in the corner Integrally, and each side wall is also integral with the bottom, and each side wall further includes top, nested ridge and lower part, institute Stating top includes the first end and the second end integral with the nested ridge close to the opening, and the lower part include with The nesting integral first end of ridge and the second end integral with the bottom, each of described side wall lower part is in institute Stating nested ridge nearby has the width bigger than at the bottom, so that bottom described in the aperture efficiency of the bucket is wider, And when removing the lid and the bucket is empty barrel, a bucket in the bucket can be nested in another bucket.

2. container as described in claim 1, wherein the corner, the edge and the lid of the bucket are roundings.

3. container as described in claim 1, wherein the quantity of the side wall is four, and the opening of the bucket, institute It states edge and the lid is configured to rectangle.

4. container as claimed in claim 3, wherein the rectangle is square.

5. container as described in claim 1, wherein the lower part of each side wall includes inner surface, and described interior At least one inner surface in surface includes ridge.

6. container as claimed in claim 5, wherein the ridge is roughly parallel to the bottom setting of the bucket.

7. container as described in claim 1, wherein the edge includes one or more corner portions in the corner Separate protruding portion.

8. container as described in claim 1, wherein the lid includes outer edge and the close outer peripheral stacking ridge, and And the bucket further includes the stacked rings integral with the bottom of the bucket, the side wall and the corner, the stacked rings It is slightly wider than the stacking ridge, so that by the way that the stacked rings of a container are placed on another container adjacent to the stacking ridge It covers, can be realized stability when stacking two or more containers.

9. container as described in claim 1, wherein the lid further includes U-shaped channel and the edge is also logical including U-shaped Road, the U-shaped channel of the lid include three protrusions, and the U-shaped channel at the edge includes three protrusions, the lid it is described Each of protrusion protrusion corresponds to a protrusion in the protrusion at the edge, so that by the U-shaped channel pressure of the lid Enter and forms three pairs of complementary protrusions from the lid and the edge in the U-shaped channel at the edge.

10. a kind of plastic containers, the container includes the lid that bucket and size are suitable for the bucket, and the bucket includes edge and described The adjacent open end of bucket limits the side wall of opening, and the top at the edge and each side wall is integral, each of described side wall Side wall includes width and two boundaries, and each boundary and a corner in corner are integral, and the side wall also with Bottom is integral, and each width is bigger than at the bottom near the opening so that when remove it is described lid and When the bucket is empty barrel, a bucket in the bucket can be nested in another bucket.

11. container as claimed in claim 10, wherein the corner, the edge and the lid of the bucket are roundings.

12. container as claimed in claim 10, wherein the quantity of the side wall is four, and the opening of the bucket, The edge and the lid are configured to rectangle.

13. container as claimed in claim 12, wherein the rectangle is square.

14. container as claimed in claim 10, wherein each side wall includes inner surface, and in the inner surface At least one inner surface includes ridge.

15. container as claimed in claim 14, wherein the ridge is roughly parallel to the bottom setting of the bucket.

16. container as claimed in claim 10, wherein the edge includes one or more corner portions in the corner Separation protruding portion.

17. container as claimed in claim 10, wherein the lid includes outer edge and the close outer peripheral stacking ridge, And the bucket further includes the stacked rings integral with the bottom of the bucket, the side wall and the corner, the stacking Ring is slightly wider than the stacking ridge, so that by the way that the stacked rings of a container are placed on another container adjacent to the stacking ridge Lid on, can be realized stack two or more containers when stability.

18. a kind of plastic containers are suitable for the lid of the bucket including bucket and size, the bucket includes edge, bottom, by four sides Wall limit open end at opening, and each side wall include two boundaries and on each boundary with corner Integrally, the top at the edge and each side wall is integral, and each side wall further includes top, nested ridge and lower part, institute The top for stating edge and the side wall is integral, and the edge includes separation protruding portion, each top and more One nested ridge of a nesting chi chung is integral, and one in the one nested ridge and multiple lower parts of the multiple nesting chi chung A lower part is integral, and the one lower part and the bottom in the multiple lower part are integral, and the lower part is in the nesting Ridge nearby has the width bigger than at the bottom, and a bucket in the bucket is enabled to be nested in not having in the bucket In another bucket for thering is lid to be attached.

19. plastic containers as claimed in claim 18, wherein the opening, the lid and the edge are rectangular shape, and And the corner is rounding.

20. plastic containers as claimed in claim 19, wherein the rectangle is square.

21. plastic containers as claimed in claim 18, wherein the lid includes close outer peripheral stacking ridge, and described Bucket further includes stacked rings, and size integral with the bottom is slightly larger than the stacking ridge to the stacked rings on the outer periphery, is made On the outside of the stacked rings for the lid that the stacked rings for obtaining an example of the bucket can steadily be located in another container just.