IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0441085
(2003-05-20)
|
우선권정보 |
EP-0028705 (2002-12-19); DE-0008386 (2002-05-29) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
16 인용 특허 :
6 |
초록
▼
A cup-shaped receptacle has an outer bead in its opening area for clipping on a plastic lid, which has a circumferentially continuous clamping groove for receiving the bead. The clamping groove is continued outwards by an elastically deformable constriction, and inwards by an outer wall of a circumf
A cup-shaped receptacle has an outer bead in its opening area for clipping on a plastic lid, which has a circumferentially continuous clamping groove for receiving the bead. The clamping groove is continued outwards by an elastically deformable constriction, and inwards by an outer wall of a circumferentially continuous, U-shaped lid recess, whose U-web of is situated below the height position of the constriction and whose inner leg wall forms a part of a dome wall of a dome which extends upwardly beyond the height position. The lid recess extends downwards beyond the height position and has an outer diameter at its outer surface which is adapted to the inner diameter of the receptacle wall such that the lid recess functions at least as a centring and guide projection for the lid-clip-on action, which projection slidingly co-operates with the receptacle wall already at least while the bead passes the constriction.
대표청구항
▼
1. A cup-shaped receptacle of paper or cardboard, provided with a plastic material clip-on lid;the receptacle having an opening area delimited by an upwardly and outwardly tapering conical receptacle wall and an outwardly projecting bead; the lid having a peripheral clamping groove which is open on
1. A cup-shaped receptacle of paper or cardboard, provided with a plastic material clip-on lid;the receptacle having an opening area delimited by an upwardly and outwardly tapering conical receptacle wall and an outwardly projecting bead; the lid having a peripheral clamping groove which is open on a lower surface of the lid for receiving therein the bead; the clamping groove having at an outer lower end region an elastically expandable constriction, and at the inner side of a top wall a cylindrical or conical outer surface of an outer leg wall of a circuinferentially extending lid recess of U-shaped cross-section; a U-web of the lid recess being located below the height position of the constriction; an inner leg wall of the lid recess being part of a dome wall of a dome having a dome top wall located above the constriction and the clamping groove, respectively; the lid recess having such a depth to markedly extend downwards beyond the height position of the constriction by a length which is equal to at least 2.5 times the height of the clamping groove, and an outer diameter at the outer surface at the elevation of the constriction largely corresponding to the inner diameter of the receptacle wall at the bead; and in the clamping groove the outer diameter of the outer surface at the transition from the top wall into the outer surface being markedly larger than the interior diameter of the receptacle wall in the opening area, such that during a clip-on operation of the lid, the lid recess outer surface functions as a lid centering and guide projection cooperating by sliding contact with the receptacle wall when the bead reaches the constriction while downwardly directed clip-on pressure mainly is applied to the dome. 2. The receptacle according to claim 1, wherein the centering and guide projection is formed with the outer diameter such that it cooperates by sliding contact with the receptacle wall already before the bead reaches the constriction from the lower side.3. The receptacle according to claim 1, wherein the cone angles of the receptacle wall and of the conical outer surface are at least approximately equal and lie between approximately 6° and 12°.4. The receptacle according to claim 1, wherein the dome has circumferentially regularly distributed depressions of identical size and identical depth, at the transition between the dome top wall, and the upwardly extending inner leg wall; each depression defining an undercut finger grip indent in the inner leg wall, and each depression having a lower shoulder defining a lid stacking stop.5. The receptacle according to claim 1, wherein at least one circumferential zone having an increased coefficient of friction is provided at the outer surface of said outer leg wall and/or one inner surface of the receptacle wall.6. The receptacle according to claim 1, wherein the average radial thickness of the bead exceeds the radial interior width of the clamping groove.7. The receptacle according to claim 6, wherein the radial thickness of the bead exceeds the radial interior width of the clamping groove by 10% to 20%.8. A lid of plastic material, for a conical receptacle having an exterior bead in an opening area;the lid having a peripheral clamping groove, which has a top wall and is open on a lower surface of the lid for receiving the bead therein; the clamping groove being continued at an outer lower end thereof by an elastically expandable constriction and at a transition from the top wall by a cylindrical or conical outer surface of an outer leg wall of a circumferentially extending lid recess of substantially U-shaped cross-section with a U-web located below the height position of the constriction; the inner leg wall of the lid recess being part of a dome wall of a dome including a dome top surface located markedly above the height positions of the constriction and the clamping groove; the lid recess having such a depth so as to extend downwards beyond the height position of the constriction by a length which is equal to at least 2.5 times the height of the clamping groove, and having an outer diameter at the outer surface essentially at the height position of the constriction largely corresponding to the inner diameter of the opening area at the bead such that the lid recess defines a centering and guide projection for an easy clip-on operation of the lid onto the bead of the receptacle. 9. The lid according to claim 8, wherein the constriction comprises circumferentially successive and alternating deeper and shallower depressions formed inwardly from the outer side, with, the deeper depressions being circumferentially longer than the shallower depressions.10. The lid according to claim 8, further comprising a plurality of regularly distributed upwardly protruding beverage distinguishing protrusions in the dome top wall.11. A lid of plastic material, for a conical doubled-walled paper or cardboard receptacle having an exterior bead at a conical and stepped opening area;the lid having a peripheral clamping groove which has a top wall and is open on a lower surface of the lid for receiving the bead therein; the clamping groove being continued at an outer lower end thereof by an elastically expandable constriction, and at an inner region of the top wall by a cylindrical or conical outer surface of an outer leg wall of a circuinferentially extending lid recess of substantially U-shaped cross-section with a U-web located below the height position of the constriction; an inner leg wall of the lid recess being part of a dome wall of a dome including a dome top wall located markedly above the height positions of the constriction and the clamping groove; the lid recess having such a depth so as to extend downwards beyond the height position of the constriction, and having an outer diameter at the outer surface at substantially the height position of the constriction largely corresponding to the inner diameter of the opening area at the bead, such that the lid recess defines a centering and guide projection for sliding co-action with the conical and stepped opening area of the double wall receptacle allowing an easy clip-on operation of the lid onto the bead, and the centering and guide projection being continued downwardly by an inward stepped portion dimensioned for a press-fit co-action with a region of receptacle wall located below the conical and stepped opening area. 12. The lid according to claim 11, wherein the outer surface of the outer leg wall is formed with a cone angle value between 0° and a value smaller than the cone angle value of the stepped receptacle opening area.13. A cup-shaped receptacle, of paper or cardboard provided with a plastic material clip-on lid;the receptacle having an opening area delimited by an upwardly and outwardly tapering conical receptacle wall and an outwardly projecting curled rim bead; the lid having a peripheral clamping groove which is open on a lower surface of the lid for receiving the bead therein; the clamping groove having at an outer lower end region an elastically expandable constriction, and at an inner side a cylindrical or conical outer surface of an outer leg wall of a circumferentially extending lid recess of U-shaped cross-section; a U-web of the lid recess being located below the height position of the constriction; an inner leg wall of the lid recess being part of a dome wall of a dome having a dome top wall located above the constriction and the clamping groove, respectively; the lid recess having such a depth to markedly extend downwards beyond the height position of the constriction by a length which is equal to at least 2.5 times the height of the clamping groove, and having an outer diameter at the outer surface at the elevation of the constriction adapted to the inner diameter of the receptacle wall at the bead, such that during an easy clip-on operation of the lid, the lid recess outer surface functions as a lid centering and guide projection cooperating by sliding contact with the receptacle wall at least while the bead moves past the constriction into the clamping groove, when downwardly directed clip-on pressure mainly is applied to the dome; and the lid centering and guide projection and the clipped-on clamping groove commonly defining an annular receptacle opening area stiffening structure for preventing radial deformations of the receptacle opening area. 14. The lid according to claim 11, wherein the depth of the lid recess extends downwardly beyond the height position of the constriction by a length which is equal to at least 2.5 times the height of the clamping groove.
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