CN1246193C

CN1246193C - Plastic container with a snap-in lid

Info

Publication number: CN1246193C
Application number: CNB018076211A
Authority: CN
Inventors: 弗兰克·迪斯特贝克
Original assignee: Jokey Plastik Gummersbach GmbH
Current assignee: Jokey Plastik Gummersbach GmbH
Priority date: 2000-04-01
Filing date: 2001-02-08
Publication date: 2006-03-22
Anticipated expiration: 2021-02-08
Also published as: DE20006093U1; JP3818919B2; ZA200207587B; PT1268289E; WO2001074674A1; CA2404876A1; KR100538681B1; FR2808507B3; BR0109623B1; ES2236196T3; RU2261203C2; ATE287363T1; BR0109623A; JP2004501836A; MXPA02009624A; AU2001239165A1; UA72594C2; DE50105127D1; CN1422224A; DK1268289T3

Abstract

The invention relates to a plastic container (1) with a snap-in lid (2) and comprising a catch which is located on the top edge area of the container, for accommodating the lid in a locked manner. The lid has an area which comes to rest sealingly with the upper edge area of the container. The sealing area between the container (1) and the lid (2) has a peripheral seal (11) consisting of a material with greater elasticity than that of the container (1) and/or the lid (2), said seal (11) being moulded to the container (1) and/or the lid (2) in a single piece.

Description

Plastic container with latchable lid

Technical field

The present invention relates to a kind of plastic container, it comprises latchable lid and is located at the snap close that the upper container edge district is used for kayser ground mounting cover, wherein, covers in upside and the outside round container edge and abuts on the container edge hermetically.

Background technology

This plastic container especially are used in the different goods of transportation at industrial circle and field of food, and have confirmed it is unusual failure-free.But when transport liquid or low-viscosity material, still exist plastic container whether the problem of enough leak tightnesss is arranged.It is volatile and because during the other reasons hazardous goods that this problem especially occurs in transportation, as oil, and mineral oil especially.In these cases, leak tightness to plastic container has proposed extra high requirement, these require in hitherto known plastic container, even the appropriate moulding of having done repeatedly to make great efforts to attempt by container edge and lid obtains enough leak tightnesss, but still fail to reach satisfactorily.Therefore, these goods transport in the sheet metal container mostly.

DE4422534A1 has introduced a kind of injection moulding individual layer edge plastic container by the latchable lid of this type band, and wherein, when fixed cap, lid inserts in the vessel port with its inside face, and therefore the ring edge of lid closely reclines with wall of container inboard.

Summary of the invention

The objective of the invention is to create a kind of plastic container that latchable lid is arranged, it satisfies the specific (special) requirements that leak tightness is proposed.

For this reason, the present invention proposes a kind of plastic container of injection molded, the upper limb district that comprises latchable lid and be located at container is used for the snap close of kayser ground mounting cover, wherein, be stamped the circular groove of seamed edge on the snap close limit of an annular and the storage container, this groove surrounds the inboard and the outside of seamed edge on the container, and be stamped the zone that a upper limb district with container reclines hermetically, this zone have the annular of being designed to, be contained in the sealing member in the groove, it is characterized by: described sealing member is made with the bigger material of the elasticity of a kind of container and/or lid; And, described sealing member is formed on lid or the container by the injection moulding integral type, and establish a ring edge district of extending downwards in the outside of the upper zone of container, described ring edge district is connected in the last seamed edge zone of container, on the height at seal area place or the distance of several vessels wall thickness arranged.

In the plastic container with latchable lid of the present invention, seal area is established an integrally formed lip ring, and sealing member closely is between container and the lid, here when covering loading onto, sealing member is especially made with elastomeric material with a kind of elastic ratio lid and/or the bigger material of bucket.Therefore sealing member is integrally formed on the bucket of being made up of container and lid.From then on mode is avoided in the manual error that may occur when inserting sealing member, and sealing member and lid or container is fixed, so even when stressed, when for example container dropped, sealing member still fixedly was on this member all the time.Sealing member is preferably by gunite, injection molded for example, thus avoided glued position maybe will take similar measure.The injection moulding of sealing member can directly be finished in same mould after relevant container member is shaped, and can keep minimum processing and mismatch error thus.

Advantageously, sealing member is formed in and covers, and the width dimensions of sealing member can be designed to the wall thickness greater than upper container edge in this case, for example is about its 1.5 to 3 times, but not limited.The seal area that sealing member can have a substantial horizontal to extend, they also can be moulding, for example U-shaped or V-arrangement.Can establish one or also can establish two or more different seal areas, these seal areas its can be respectively wire or the planar width that reclines, their material thickness or other properties can be different.The transition and/or have each other radially or axial spacing mutually of these seal areas.

Advantageously, sealing member is placed in of lid in the circular groove of container edge opening, and sealing member can extend and additionally prevent thus its shifted laterally here along whole width of groove.The sidewall of groove can be in the inboard and outside around container edge, preferably have respectively a small amount of or do not have sideshake, but not limited.

Sealing member preferably has two adjacent seal areas, and they can have different gradients and can abut in hermetically on the zone of container edge of different gradients.For this reason, sealing member can especially have U, V or L shape cross-sectional plane or other profiles, and here, seal area can be located in the zone that sealing member faces one another, but also can for example be located in case of necessity in the protruding zone.The seal area of different gradients can be designed to integral with one another or be divided into a plurality of parts, that is is not continuous, and in this case, sealing member is one or more, preferably all segmentations, and all integral type is formed in container and/or covers.

Preferably, closed state sealing member at container has a substantially horizontal zone, this zone can closely abut on the last seamed edge of container edge, and radially inside a zone is arranged, this zone is preferably downward-sloping and can closely abut on the inboard of upper container edge.When container is in erectility, but the downward-sloping zone perpendicular of sealing member or extend obliquely with a gradient, and here, these two seal areas can have a angle 90 °-135 ° or bigger.Therefore, the bevelled seal area finishes in tilting district and straight-line extension basically preferably.The length of bevelled seal area can equal the length in the uneven district of sealing member substantially, for example be the horizontal seal section length 1/4th to its total length or longer.Preferably, the seal area and that container edge has a level equally is inside inclined-plane or chamfering radially, is used for the zone vertical or tilting with sealing member and fits, but other design also can be arranged.Therefore, even act on side force on seal area, these power can be absorbed in the zone of elastic sealing element, thereby guarantee to have the anti-reliability of sewing of height.

Sealing member can have one or more ring seal ribs towards the container edge projection, they and container area especially on the container seamed edge recline.The height of sealing rib can be thick less than wall of a container.Container edge can be flat or establish one or more annular ribs, and these annular ribs can form a groove in couples, inserts one or more sealing ribs to small part in groove.The sealing rib can be located in the different zone of sealing member, for example be located at level and/or vertical or the zone that is in tilted layout in.The cross-sectional plane of sealing rib is not necessarily consistent with the circular groove of container edge, as long as obtain enough sealing effectivenesss.The cross-sectional plane of the groove of container edge can be equal to or less than the cross-sectional plane of sealing rib, so when closing the lid, be full of elastomeric sealing rib in the groove fully.The cross-sectional plane of groove also can be greater than the sealing rib that will insert, in this case, the requirement that for example prevents the sealing member shifted laterally also can be only by rise a kind of strut rail be used for satisfy.Strut rail or edge as the border of groove can closely abut on the sealing member equally.Also can establish one or more ribs at container edge in case of necessity, they insert in the set for this reason depression of elastic sealing element.Especially, the structure that sealing member and container edge recline mutually can be inharmonious or non-complementary, so the protuberantia of sealing member is not in the relative position of the depression of container edge, but contact with the protuberantia of container edge, this is for example in the sidewall region of container edge.Consequently cause not quite identical engagement, this engagement guarantees good and failure-free leak tightness.Here, the height of sealing rib is preferably less than container wall thickness, for example be wall thickness 1/2 to 1/5 or littler, but not limited.

Container edge also can be established the sealing that at least one rib is used for container, and a flat zone of it and sealing member reclines.This rib preferably has such height, that is, this rib is to small part or all imbed basically in the bigger sealing member of container elastic properties of materials when closing the lid.

Sealing member preferably has such height and thickness, that is, when on container or in the seal area that covers when stressed, sealing member plays deforming zone simultaneously, so avoided the lid or the container area distortion of rigidity under certain power effect.

Sealing member level and/or the zone of extending downwards vertically or obliquely, for airtight container, can straight ground preferred all sidedly that is along the whole radial dimension in this zone when closing the lid, abut in container or lid and recline accordingly in the district.

Can be shaped on the zone of and outside oblique deascension adjacent at seamed edge on container outer wall and the container radially to the contact pin of outer process, they can be designed to the rib of annular, and their radial dimension is thick less than wall of a container.These contact pin can be by making and be mainly used in the friction force that reduces when the buckle closure with the wall of container identical materials, and here they have only less important sealing function, and sealing function is mainly realized by elasticity and compressible sealing member.On container edge, also can add two or more this annular tab.These contact pin preferably do not have the gap but do not abut in with having obvious predetermincd tension and cover when closing the lid, and therefore make to cover in seal area location exactly; Or it is minim gap ground devices spaced apart is arranged, but not limited.

For the stabilized seal district, preferably on the container edge in the outside, face that side of seamed edge on the container at snap close, be formed with a strengthening rib strip that extends radially.Strengthening rib strip preferably radially extends around container, and it also can segmentation and is made up of a plurality of reinforcements district.Form or additionally as an alternative, can snap close face seamed edge on the container or on the container side of seamed edge, one or more other strengthening rib strips are shaped.The thickness of strengthening rib strip, that is height and/or width can be in the scopes of container 1/2nd wall thickness, preferably in the scope of this wall thickness or above this wall thickness.Adjacent by strengthening rib strip is positioned to elastic sealing element, make the seal area of container stable especially.Preferably, be stamped or do not abut in with having predetermincd tension strengthening rib strip radially on externally that end, therefore, act on the power that covers from side direction and directly bear by strengthening rib strip.For this reason, can there be a flat zone strengthening rib strip outer end radially.Spacing between strengthening rib strip and snap close or between strengthening rib strip can be designed to snap in the snap close limit of lid.Strengthening rib strip also can be located on the container inside in case of necessity.

Preferably, still effectively same after the latching in container and open once of lid, that is to say that kayser district and seal area do not destroy because of there being material to weaken the district, this material weakens the district for example as original closing appliance and be should be local or all remove or the part of the lid that overturns in order to open container in original closing appliance.Snap close can be directly arranged on the upper limb of container or place separated by a distance with it, for example also can be located on the outwardly directed edge.

The snap close that is used for fixing lid preferably is located on the container outer wall, but also can be located at the inboard in case of necessity.

Preferably, be stamped a sliding bevel that outwards refers to, it can be connected on the last seamed edge of lid or of covering is positioned on the zone below the seamed edge, preferably is connected on the part of a perpendicular.Sliding bevel can be directly arranged in strengthening rib strip top and spacing slightly with it, and strengthening rib strip then is located at the top of snap close on the container outer wall.Sliding bevel can radially outwards finish with the snap close limit of lid with flushing or surpass it to stretch out, and preferably it radially outwards extends to more than from the outwards outstanding zone of wall of container always.

The upper limb of container preferably has the ring edge district of a radially protruding and downward extension, is formed with snap close on this marginarium.Here, one be formed in that strengthening rib strip that snap close top outwards refers to can be formed on the container edge of annular (so having strengthened container edge too) equally and/or above the marginarium of annular direct forming on wall of container.That extends downwards by this separates the marginarium of spacing with wall of container, make the snap close district with regard to stressed with regard to the seal area disengagement.

Preferably, downwards the ring edge district of extending is connected on the last seamed edge of container, and that is to say on the height that is connected the seal area place or the distance of several wall thickness is arranged, one or two wall thickness for example, but not limited.

Container preferably has the marginarium of protruding downward extension radially, and it is located to cover below the lid on the container and radially extend to lid always or surpass this lid stretches out.This annular marginarium can be formed on the wall of container separately, and here flushes with the following seamed edge in that ring edge district that is provided with the snap close limit or in height from this marginarium one distance is arranged.Preferably, this annular marginarium is designed to the continuity of the marginarium of snap close, that is is designed to step downward and that outwards continue.Can establish a corresponding original closing appliance in this zone.The following seamed edge of lid is placed on this marginarium with can being with or without predetermincd tension, or preferably with respect to this marginarium one little gap is arranged by this way, that is, and and the feasible following seamed edge that can not catch lid with hand from below.Can there be a radial shrinkage this annular marginarium, is used for the following seamed edge of part or all of containment cap.

The marginarium of one or more annulars can be strengthened by vertically extending rib, and rib can be added in the inboard, marginarium and can be connected with container outer wall.These strengthening rib strips preferably have a groove or breach downwards, and therefore, this marginarium keeps certain elasticity and can play deforming zone.

Preferably, that is stamped an annular has the zone of vertical and/or radial distance with elastomeric sealing member, and this zone closely abuts on the container inner wall when Jiang Gai loads onto.This seal area can be with making with the lid identical materials.This seal area can for example be designed to the rib of stretching downwards or be designed to build the step of downside, and preferably it is in the top of a step of wall of container when covering.This seal area can be placed on this step after adding loam cake, but also can be preferably in such a way the destage rank one spacing is arranged, that is, when on the stacking during other containers or be subjected to external force to do the time spent, this rib of lid or the lower end of step just are bearing on the step of container.Here, but this zone linearity of lid or along a vertical dimension.Closely abut on the container area that preferably perpendicular is extended, this zone of container preferably is located at the strengthening rib strip on the outside of containers or the height place, place on snap close limit at one.

In order to improve the reliability of seal of vessel, can be on container inner wall, radially be positioned at the inside of the rib that is formed in the tab shaped covered on the inboard or ring-type circlewise, establish one and upwards surpass the zone that this rib lower edge stretches out.For this reason, can establish circumferential one by one projection or strut rail, preferably this zone is designed to the rib of annular equally.The height that the rib that the preventing of this rib covers moves inwards, preferably less than the wall thickness of container wall thickness or this rib, but not limited.The zone that this of container protrudes upward is spacing ground or be with or without predetermincd tension ground side direction and abut on the rib of lid slightly.Here, the rib of lid also can be placed in radially between the container area as inner boundary and exterior boundary by force fit.

Be in the step of the container inner wall of rib on lid or the analogue or step below, can be located at the height place, place of snap close or strengthening rib strip substantially, or the distance of be separated by or few several vessels wall thickness.

For the stabilized seal district, the projection that lid preferably can have at least one radially inwardly to stretch in the zone that radially is located immediately at the wall of container the inside, it can be formed in the upside of lid.One or more projections can for example be designed to annular or box-like (for example rectangular parallelepiped shape or prismatic) or tab shaped, but not limited.For the projection of stabilization box ring shape, can be located at the in-to-in strengthening rib strip.

Advantageously, the upside of one or more projections preferably has certain spacing from the zone that closely abuts in the lid on the container inner wall up, and here, in fact contact point vertically may be point-like or wire.The cross-sectional plane of projection can for example be designed to oblique angled triangle or tetragonal form, and wherein, the upper limb of the sidewall of projection and/or lower edge can be designed to towards the internal tank oblique deascension.Projection radially inside end wall can be vertically or is extended obliquely.These projections can be formed in the upper edge of lid.Advantageously, the upper limb of projection is arranged in the below that covers the edge, thereby forms another step.Avoided thus being shaped at height place, the place of container inside seal area, otherwise for example because this shaping of contraction process can cause material stress or alteration of form.

Advantageously, will be designed to towards the projection of lid center position, make for example also avoid basically or fully in form for the side of projection or strut rail shape projection with the vertically extending joint face of ring seal rib at its seal area.For this reason, can establish the projection of extending, or preferably on the inboard of lid, establish radially an annular edge along a bigger circumference range.Here, the side of projection can be arranged in from the other ring seal district of projection upside the radial spacing place, so formed one when cover the circular groove that for example is similar to trapezoidal or triangular cross section and expands is downwards arranged observing from downside.In case of necessity, projection, especially Huan Xing projection also can be strengthened by rib inside, these ribs preferably terminate in from the sealing rib or the supporting rib that abut on the container inner wall certain radial spacing place, or the seal area that is arranged on the projection from this sealing rib has a spacing place.

The upside of projection can essentially horizontally be arranged in and cover on the inward flange, preferably with one less than 15 °, for example 5 ° gradient is towards the internal tank oblique deascension.

The surface of the lid of shutoff vessel port can be located on the height that is in the in-to-in seal area or its below, preferably is located on the height on snap close limit or its below.

Can adorn a pouring spout covering, it preferably approximately is located at 1/4th places of cap surface diameter, therefore can handle this container easily when pouring out liquid.

Description of drawings

Below by the present invention of accompanying drawing casehistory.Wherein:

With cover and the stacking of Fig. 1 another container by container part sectional view of the present invention;

Fig. 2 presses the lidded container detail drawing of Fig. 1;

Fig. 3 presses the container sectional detail drawing of Fig. 1;

Fig. 4 presses the lidded container birds-eye view of Fig. 1; And

Fig. 5 presses the stacking scheme drawing of the lid of Fig. 1.

The specific embodiment

The band that Fig. 1 represents injection molded is the Plastic Drum 1 of the kayser lid 2 of living, wherein, establishes one on the last seamed edge 4 of the outer wall 3 of bucket and scabbles the district.On last seamed edge 4, connect an annular and radially outwardly directed edge 5, the outwardly directed snap close limit 6 that on this edge 5, is shaped, the annular snap close limit 7 of lid fastens snap close limit 6 with a hook-shaped projection from below.Lid becomes outer seamed edge substantially horizontal and not cavetto with the mutual kayser ground of bucket ingear zone design, so provide a kind of special failure-free kayser connecting device by the hook connection that forms.The snap close limit of bucket and lid also can be outwards downward-sloping in case of necessity, connects thereby strengthen hook.

Lid 2 is groove shape or ditch shape with the zone design that matches of last seamed edge 4 of bucket, and wherein, the lateral surface side direction of groove 34 abut in barrel two is vertically on the annular tab 9 of partition distance.The radial dimension of contact pin 9 is significantly less than the wall thickness of bucket, here approximately is 1/3rd of this wall thickness.Because the last seamed edge and the contact pin width smaller of contact pin 9 cavettos, so, also lid can be enclosed within on the bucket easily even the lid side direction closely abuts on the edge of bucket.Here, contact pin 9 is located at the height place, place of the part 12 of sealing member, even lack these contact pin in this case, lid still can highly have on the outer wall little or that do not abut in bucket at this with in fact having predetermincd tension.

On the sealing member integral type that is made of elasticity and compressible elastomeric material is injection-moulded at the bottom of the horizontal slot of lid and radially on the sidewall 10 as inner boundary.Connect in order to improve material, the district's design that reclines on bottom land of bottom land and rubber seal has on all four protuberantia and depression.The seal area 12 that matches with in-to-in groove sidewall 10 is set to tilt with respect to vertical direction, about 20 ° of angles that here tilt, and the value between 5 ° and 45 ° also can be got in this angle, but not limited.At the kayser state of lid, sealing member 11 bevelled parts 12 abut in bucket go up seamed edge 4 inner is connected and the inclined-plane 13 of inside oblique deascension on (also as seen Fig. 2,3), the gradient on inclined-plane 13 is consistent with the gradient of the abutment face of sealing member part 12, but not limited.Adopt this particular design of sealing member,, still can guarantee the positiver sealing of bucket even acted on big power on the barrel edge.The part that radially centers on the lid of sealing member part 12 in the inboard is designed to bevelled equally.

The ring edge 5 of bucket is connected on the place height of seamed edge 4, so, be that the cavity 14 on boundary extends near the seamed edge always with edge 5, that is to say to extend to an about wall thickness place always.Therefore, the same ring-type profile that constitutes U-shaped in the zone of Tong last seamed edge 4.

The outside transition in limit of seamed edge 4 perpendicular is an inclined-plane 15 on the U-shaped, and inclined-plane 15 angle with respect to the horizontal plane is about 30 °, constitutes a stepped step thus.Below this step, be formed with snap close limit 6, between snap close limit and step, here be at the place of step height, shaping one ring stiffener bar 16 radially, in this example, strengthening rib strip 16 finishes on the height on external snap close limit 6 and width consistent with snap close limit 6 that is consistent vertical dimension is arranged.The lower edge of strengthening rib strip 16 is designed to consistent with the lower edge on snap close limit 6, so the snap close limit 7 of lid also can be inserted in the groove that is located between limit 6 and the strengthening rib strip 16.For this reason, also outwards oblique deascension of the upper limb on snap close limit 6.Therefore at kayser state fully, the lid edge abut on the outer seamed edge of snap close limit and strengthening rib strip 16 and two contact pin 9 on, wherein, on inclined-plane 15 and cover and between the sliding bevel above this inclined-plane 15 17, leave a less clearance.Sliding bevel 17 also can be located at the top of seamed edge under the lid edge of seamed edge on the container, thereby constitute the contact pin that downwards 15 directions are stretched out towards the inclined-plane, contact pin in case of necessity also can rest on the part that the substantial horizontal on the inclined-plane 15 or inclined-plane extends.

Ring edge 5 has a ring-shaped step 18 below snap close limit 7, it extends to exceed from 7s, snap close limit always covers 2 outward flange, here, snap close limit 7 can have under the situation of predetermincd tension by being placed on the step 18, or also can leave a gap between snap close limit and step.Step 18 has an original closing appliance 19, after being removed, can catch snap close limit 7 also lid can be opened from the below with hand.Also can establish a plurality of pulling-on pieces that bigger circumference range is extended arranged side by side or the edge bucket.Original in case of necessity closing appliance also can be contained on the snap close limit 7.Here should point out, preferably the zone of the lid between groove that holds sealing member and snap close limit weakens without any tangible material, so guarantee to have high stability between the bucket 1 in-to-in zone and thereby leak tightness highly arranged also kayser connecting device and being in of sealing member 11 or lid.

In sealing member 11 the insides, be stamped a ring seal rib 20, it only closely abuts on the inwall of bucket along the subregion of its height, and the bottom that seals rib in this example constitutes seal area, and this bottom is located on the place height on strengthening rib strip 16 or snap close limit substantially.The rib 20 that substantially perpendicularly stretches out downwards is located at the height place of the step 21 that barrel inwall stretches out inwards, and step 21 has a little vertical distance therewith.When the effect of covering had little vertical pressure, rib 20 just rested on the step 21.If sealing function of this sealing rib is unnecessary, then also can establish one by one downwards tab shaped projection by a kind of substitute mode.Step 21 is the boundary with a ring edge 22 inwards, replaces this edge 22 and also can adopt projection one by one, and here, this edge 22 exceeds the following seamed edge that seals rib 20 and protrudes upward, and prevents to seal the inside motion of rib 20 directions.Sealing rib 20 also can be contained between the wall district as exterior boundary of edge 22 and bucket by force fit.The seal area of sealing rib 20 constitutes (see figure 2) in such a way, that is, rib 20 is slightly outward-dipping and will be designed and sized to, and its following seamed edge 35 will radially be in outside barrel inwall when covering when taking off.Here, the thickness of following seamed edge approximates the thickness of sealed muscle bar greatly, is preferably more than the thickness of 1/4 rib, and it is slightly tapered in this case.Therefore when closing the lid, reach all the time under the situation that radial tightening power is arranged and recline with container inner wall.When take off overhang when covering here less than sealing rib thickness and approximately be down seamed edge thickness 1/4.

On the sealing rib 20 above the seal area, radially be formed with the ring edge 23 of a slightly inside oblique deascension inside, the inclined-plane 24 of the inward direction of edge 23 blockiness ground shaping from then on or in the wall district 25 of the width position shaping perpendicular of the ring edge of widening, their equal transition are the zone 26 of the lid of level.This zone 26 is located at the below on snap close limit 6, and here, its outside dimension is designed to allow piled barrels is piled up neatly as shown in the figure.Therefore formed the projection that triangular cross section is arranged, they are formed in one trapezoidal on the groove of under shed.

In order to improve the transmission of power under the situation of not adding a cover mutually in the stacking at bucket.The outer wall 3 of bucket has one outwards less than 3 °, preferred 2 ° conicity or gradient, also littler gradient can be arranged here.In addition, for when the piled barrels with cover buttress in the marginarium load better, face distance between that side at barrel center and the outer wall 26 that bucket is in relative position at the wall 25 of projection and be designed and sized to and have only little gap, for example less than the spacing of 2mm, preferred 1mm.

By the enlarged drawing of Fig. 2 and 3 as seen, the last seamed edge 4 of barrel edge is established two annular ribs 36, they and the tooth on sealing member 11 downsides mesh, here, the rib 37 that stretches out under the teeth directional of sealing member partly with bucket on the rib 36 of seamed edge for example in its side regions, contact (therefore preventing the shifted laterally of rib 37); Partly rib 36 other being in the groove that constitutes between the rib 36; Or exceed container seamed edge 4 in rib 36 outsides.Adopt this two kinds of designs that structure is not quite identical, can reach the leak tightness of bucket height.

Also can find out by accompanying drawing, in cavity 14, establish strengthening rib strip 38 vertical and that stretch out with respect to outer wall vertical, the breach 33 of their oriented under sheds, here, the summit of breach is set to offset towards the outer wall direction of bucket.

As shown in Figure 4, the ring edge 23 that lid is located at barrel wall 3 inboards is provided with the different section of

radial width

28,29, has therefore constituted a kind of actv. and has strengthened profile, so that sorption is sealing on rib 20 seal areas or the power on the sealing member 11.Press present embodiment, the circumferential size of

section

28,29 is many times of its width.Therefore, these projections are designed to box-like.Inclined-plane 24 terminates in from the identical distance of bucket spindle axis with vertical wall district 25, wherein, extends with respect to the peripheral, oblique ground that covers as the zone 30 of inclined-plane 24 lateral boundaries.In addition, establish a closed pouring spout at the middle section 26 of lid, it is arranged on about 1/4th places of barrel diameter.

By stacking scheme drawing shown in Figure 5 as can be seen, the lower edge on the snap close limit 7 of lid is placed on the sliding bevel 17, and the following seamed edge 35 of sealing rib 20 is placed on the horizontal sides 31 of the groove 34 that holds sealing member 11.Mode or additionally as an alternative, the lower edge 32 of box-like projection also can be placed on the upper limb of the projection that is positioned at that lid below it.

Reference numeral

1	Bucket	2	Lid	3	Outer wall
1	Bucket	2	Lid	3	Outer wall	4	Last seamed edge	5	The edge	6，7	The snap close limit
8	Lateral wall	9	Contact pin	10	Sidewall	4	Last seamed edge	5	The edge	6，7	The snap close limit
8	Lateral wall	9	Contact pin	10	Sidewall	11	Sealing member	11a	The sealing rib	12	Vertical component
13	The inclined-plane	14	Cavity	15	The inclined-plane	11	Sealing member	11a	The sealing rib	12	Vertical component
13	The inclined-plane	14	Cavity	15	The inclined-plane	16	Strengthening rib strip	17	Sliding bevel	18	Step
19	Original closing appliance	20	The sealing rib	21	Step	16	Strengthening rib strip	17	Sliding bevel	18	Step
19	Original closing appliance	20	The sealing rib	21	Step	22	The edge	23，24	The inclined-plane	25	Wall
26	The zone	27	Outer wall	28，29	Section	22	The edge	23，24	The inclined-plane	25	Wall
26	The zone	27	Outer wall	28，29	Section	30	The zone	31	Horizontal sides	32	Lower edge
33	Breach	34	Groove	35	Following seamed edge	30	The zone	31	Horizontal sides	32	Lower edge
33	Breach	34	Groove	35	Following seamed edge	36，37，38	Rib

Claims

1. the plastic container of injection molded, the upper limb district that comprises latchable lid and be located at container is used for the snap close of kayser ground mounting cover, wherein, be stamped the circular groove (34) of seamed edge (4) on the snap close limit (7) of an annular and the storage container, this groove surrounds the inboard and the outside of seamed edge (4) on the container, and be stamped the zone that a upper limb district with container reclines hermetically, this zone have the annular of being designed to, be contained in the sealing member in the groove (34), it is characterized by: described sealing member (11) is made with a kind of container (1) and/or the bigger material of elasticity that covers (2); And, described sealing member (11) is formed on lid (2) or the container (1) by the injection moulding integral type, and establish a ring edge district (5) of extending downwards in the outside of the upper zone of container (1), described ring edge district is connected in last seamed edge (4) zone of container, on the height at seal area place or the distance of several vessels wall thickness arranged.

2. according to the described container of claim 1, it is characterized by: described sealing member has at least two seal areas (11,12) that different gradients are arranged, and they can recline hermetically with the marginarium of container.

3. according to claim 1 or 2 described containers, it is characterized by: sealing member (11) has two seal areas (11,12) of different gradients with respect to the container spindle axis, and spacing separates each other.

4. according to claim 1 or 2 described containers, it is characterized by: described sealing member (11) has a zone (12), this zone (12) can abut in container or lid one with respect to seamed edge on the container (4) radially by the lining and on the zone that internal tank descends obliquely.

5. according to claim 1 or 2 described containers, it is characterized by: described sealing member (11) has at least one ring seal rib (37) towards container edge (4) direction projection, and it sealably abuts on the upper zone of container (1).

6. according to claim 1 or 2 described containers, it is characterized by: relative with sealing member (11) on container (1), establish at least one annular rib (36), it can abut on the sealing member (11).

7. according to the described container of claim 6, it is characterized by: container (1) and sealing member (11) are provided with the protuberantia of rib (36,37) form, their difference are positioned opposite in such a way, that is, the protuberantia (36,37) of container (1) and sealing member (11) contacts with each other when closing the lid (2).

8. according to claim 1 or 2 described containers, it is characterized by: the bottom land and the sealing member (11) that hold the groove (34) of sealing member are provided with on all four protuberantia and depression.

9. according to claim 1 or 2 described containers, it is characterized by: described lid (2) is at the height at sealing member (11) place, with the lateral wall (8) of the groove (34) that holds sealing member (11), side direction abuts on the outside of container (1) in the zone of seamed edge on container (4).

10. according to the described container of claim 9, it is characterized by: with container on the adjacent exterior drape forming that is positioned at of seamed edge (4) radially outwardly directed contact pin (9) is arranged, the radial dimension of contact pin is less than container wall thickness.

11. according to claim 1 or 2 described containers, it is characterized by: at container edge, a side that faces seamed edge on the container (4) at snap close (7) is formed with at least one strengthening rib strip that extends radially (16).

12. according to the described container of claim 1, it is characterized by: ring edge district (5) direct connection of described downward extension that is arranged on container (1) outside is on seamed edge on the container (4).

13., it is characterized by: in the ring edge district (5) of described downward extension, be formed with a buckling and locking device (6) according to claim 1 or 2 described containers.

14., it is characterized by according to claim 1 or 2 described containers: described lid (2) have an annular and with the be separated by zone (20) of a distance of sealing member (11), this zone (20) can closely abut on the container inner wall.

15. according to the described container of claim 14, it is characterized by: the seal area of this lid is configured to the annular rib (20) that stretches out of downside from lid downwards.

16., it is characterized by: on container inner wall,, establish one and protrude upward up to the zone (22) that surpasses rib (20) lower edge radially in annular rib (20) the inside according to the described container of claim 15.

17. according to claim 1 or 2 described containers, it is characterized by: described lid (2) is radially inside from container inner wall (3), and at least one projection (25,29) that covers side that is formed in towards the extension of container spindle axis direction is arranged.

18. according to the described container of claim 17, it is characterized by: the upside of the projection of at least one (25,29) has a vertical distance with the zone (20) that lid closely abuts on the container inner wall.

19., it is characterized by according to the described container of claim 17: the projection of at least one be designed to radially lid inboard around edge (20).

20., it is characterized by according to the described container of claim 19: around edge (20) on be formed with the inside projection of direction (29).