Receptacle comprising a lid

Abstract

Disclosed are a top shell ( 1 ) or bottom shell ( 2 ) made from a deep-drawn molded plastic part as well as a receptacle which is composed of the two joined shells. The invention further relates to a method and a device for producing a top shell or a bottom shell ( 1, 2 ). The aim of the invention is to create a first and second shell ( 1, 2 ) which can be produced inexpensively as a disposable item while allowing the same to be locked together in a fixed but easily removable manner by joining the two shells together so as to create a largely tight receptacle. Said aim is achieved, among other things, by embodying a reducing collar ( 5 ) between the holding edge ( 4 ) and the pot-type central part ( 3 ) on the top shell ( 1 ) while disposing at least two identically pitched threads ( 7 a, 7 b, 7 c, 7 d, 7 e, 7 f ) on the inner face ( 6 ) of the holding edge ( 4 ). The reducing collar ( 5 ) delimits the at least two threads ( 7 a, 7 b, 7 c, 7 d, 7 e, 7 f ) on one side while said at least two threads ( 7 a, 7 b, 7 c, 7 d, 7 e, 7 f ) are provided with an open thread inlet ( 48 ).

1 . A first shell ( 1 ), made from a deep-drawn molded plastic part with an interior pot-type central part ( 3 ) and an exterior holding edge ( 4 ), characterized in that mounting means ( 47 ) being arranged at the first shell ( 1 ,  2 ) for creating a threaded connection, which comprises a reducing collar ( 5 ), embodied between the holding edge ( 4 ) and the pot-type central part ( 3 ) and at least two threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ) arranged on the interior ( 6 ) of the holding edge ( 4 ) with the same incline, characterized in that the reducing collar ( 5 ) is unilaterally limited by at least two threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ) said at least two threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ) having an open thread inlet ( 48 ), and the contours of the threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ) being embodied both on the interior ( 6   a ) and the exterior ( 6   b ) of the holding edge ( 4 ).  
   
   
       2 . A first shell according to  claim 1 , characterized in that the threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ) each being arranged diametrically.  
   
   
       3 . A shell according to  claim 1 , characterized in that the threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ) have an incline from 5° to 30°.  
   
   
       4 . A shell according to  claim 1 , characterized in that the shell ( 1 ,  2 ) is provided with a seal.  
   
   
       5 . A shell according to  claim 4 , characterized in that the seal ( 8 ) is embodied as a concentrically encircling sealing cone ( 8   a ) at the bottom ( 9 ) between the pot-type central part ( 3 ) and the reducing collar ( 5 ).  
   
   
       6 . A second shell ( 2 ), made from a deep-drawn molded plastic part with a cup wall ( 33 ), with the cup wall ( 33 ) in its upper section ( 34   a ) being embodied with a circular opening edge and with its lower section ( 34   b ) permanently closed by a bottom plate ( 36 ), and at the second shell ( 1 ,  2 ) a mounting means ( 47 ) for creating a threaded connection being arranged, with the mounting means ( 47 ) comprising at least two stiff holding wings ( 11   a,    11   b,    11   c,    11   d ) radially protruding from the circular opening edge ( 10 ), characterized in that the holding wings( 11   a,    11   b,    11   c,    11   d ) being located in a common level in reference to each other and ending upwards flush with the opening edge.  
   
   
       7 . A second shell according to  claim 6 , characterized in that the holding wings ( 11   a,    11   b,    11   c,    11   d ) are each arranged diametrically.  
   
   
       8 . A second shell according to  claim 6 , characterized in that the holding wings ( 11   a,    11   b,    11   c,    11   d ) are provided with a front edge ( 12 ), extending radially in reference to the second shell, and a rear edge ( 13 ), which are connected to each other via an exterior edge ( 14 ) concentrically arced in reference to the second shell.  
   
   
       9 . A resealable receptacle with a first shell ( 1 ) and a second shell ( 2 ) that can be mounted to the first shell, with the first shell ( 1 ,  2 ) being provided with an interior pot-type central part ( 3 ) and an exterior holding edge ( 4 ), with the second shell ( 1 ,  2 ) comprising a cup wall ( 33 ) with the cup wall ( 33 ) at its upper section ( 34   a ) being embodied with a circular opening edge ( 10 ) and at its lower section ( 34   b ) being permanently closed with a bottom plate ( 36 ), and with, in the connected state, the first shell ( 1 ,  2 ) engaging the second shell ( 1 ,  2 ) from the outside and protruding the second shell ( 1 ,  2 ) by a holding edge ( 4 ), characterized in that at the first shell ( 1 ,  2 ), between the holding edge ( 4 ) and the pot-type central part ( 3 ), a reducing collar ( 5 ) is provided and that the first and second shell ( 1 ,  2 ) can be screwed to each other via a threaded connection ( 47 ), with the threaded connection ( 47 ) at the first shell ( 1 ,  2 ) being provided, at the inside ( 6 ) of the holding edge ( 4 ), with at least two threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ) having an identical incline, each being limited unilaterally by a reducing collar ( 5 ) and having an open thread inlet ( 48 ), and at a second shell ( 1 ,  2 ) at least two stiff holding wings ( 11   a,    11   b,    11   c,    11   d ) protruding radially from the circular opening edge ( 10 ).  
   
   
       10 . A receptacle according to  claim 9 , characterized in that the number of holding wings ( 11   a,    11   b,    11   c,    11   d ) is smaller or equal to the number of threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ).  
   
   
       11 . A receptacle according to  claim 9 , characterized in that at least two threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ) have a greater width than the holding wings ( 11   a,    11   b,    11   c,    11   d ) in the circumferential direction.  
   
   
       12 . A receptacle according to  claim 9 , characterized in that the first shell ( 1 ,  2 ) in the area of the holding edge ( 4 ) and between the opposite threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ) has a nominal diameter ( 15 ), which is slightly larger than the full-circle diameter ( 16 ) of the holding wings ( 11   a,    11   b,    11   c,    11   d ).  
   
   
       13 . A receptacle according to  claim 9 , characterized in that the first shell (  1 ,  2 ), in the area between the thread teeth ( 17   a,    17   d ) of the threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ), has an interior diameter ( 18 ), which is slightly larger than the exterior diameter ( 19 ) of the opening edge ( 10 ).  
   
   
       14 . A deep-drawing method for producing a first shell ( 1 ,  2 ), using a form tool ( 20 ) with a holding sheath ( 21 ) arranged in a torque-proof manner and a threaded sheath ( 22 ) pivotal in the circumferential direction in reference to the holding sheath ( 21 ), in which in an original position of the holding sheath ( 21 ) and the threaded sheath ( 22 ) a sheeting ( 23 ) is moved over the form tool ( 20 ), the sheeting ( 23 ) is inserted, clamped, and formed in the form tool ( 20 ) for forming a shell ( 1 ,  2 ), the threaded sheath ( 22 ) is brought into a final position by way of spindling, and the shell (I,  2 ) is separated from the holding sheath.  
   
   
       15 . A deep-drawing method according to  claim 14 , in which the shell ( 1 ,  2 ) is held by the holding sheath ( 21 ) and/or the sheeting ( 23 ) during spindling.  
   
   
       16 . A deep-drawing method according to  claim 14 , in which the shell ( 1 ,  2 ) is separated from the holding sheath ( 21 ) together with the sheeting ( 23 ).  
   
   
       17 . A deep-drawing method according to  claim 14 , in which the shell ( 1 , 2 ) is punched from the form tool ( 20 ) out of the sheeting ( 23 ) after the threaded sheath ( 22 ) has been spindled off.  
   
   
       18 . A deep-drawing method according to  claim 14 , in which the shell ( 1 ,  2 ) is punched out of the sheeting ( 23 ) from the form tool ( 20 ) prior the threaded sheath ( 22 ) being spindled off.  
   
   
       19 . A deep-drawing method according to  claim 17 , in which the shell ( 1 ,  2 ) is punched completely from the sheeting ( 23 ).  
   
   
       20 . A deep-drawing method according to  claim 17 , in which the shell ( 1 ,  2 ) is partially punched from the sheeting ( 23 ) and residual bars ( 38 ) remain between the sheeting ( 23 ) and the shell ( 1 ,  2 ).  
   
   
       21 . A form tool ( 20 ) for performing a deep-drawing method for producing first shell ( 1 , 2 ) with a holding sheath ( 21 ), arranged in a torque-proof manner and a threaded sheath ( 22 ) that can be spindled from an original position into an end position in the circumferential direction in reference to the holding sheath ( 21 ), with contours being embodied with threaded sheath ( 22 ) for forming at least two threads ( 7   a,    7   b,    7   c,    7   d,    7   e,    7   f ).  
   
   
       22 . A form tool according to  claim 21 , with an interior die ( 39 ) being arranged centrally inside the holding sheath ( 21 ).  
   
   
       23 . A form tool according to  claim 22 , in which the interior die ( 39 ) and/or the holding sheath ( 21 ) are displaceable in the axial direction.  
   
   
       24 . A form tool according to  claim 21 , in which the threaded sheath ( 22 ) is arranged concentrically around the holding sheath ( 21 ).  
   
   
       25 . A form tool according to  claim 21 , in which the holding sheath ( 21 ) is provided with an inclined wall section ( 28 ), in which holding ribs ( 26 ) are arranged.  
   
   
       26 . A form tool according to  claim 25 , in which the holding ribs ( 26 ) are aligned in the axial or radial direction of the holding sheath ( 21 ).  
   
   
       27 . A form tool according to  claim 21 , in which a holding device ( 40 ) is arranged around the threaded sheath ( 22 ).  
   
   
       28 . A form tool according to  claim 27 , in which the holding device ( 40 ) comprises a fixed punching thrust bearing ( 41 ) and a holding plate ( 42 ) that can be lowered.  
   
   
       29 . A form tool according to  claim 21 , in which a holding and punching device ( 43 ) is arranged circumferentially around the threaded sheath ( 22 ).  
   
   
       30 . A form tool according to  claim 29 , in which the holding and punching device ( 43 ) comprises a separating plate ( 44 ), a knife plate ( 45 ) that can be lowered, and a threaded sheath ( 22 ) concentrically surrounding a fixed knife sheath ( 24 ), with the separating plate ( 44 ) and the knife plate ( 45 ) being vertically displaceable.  
   
   
       31 . A form tool according to  claim 30 , in which the knife sheath ( 24 ) is arranged between the threaded sheath ( 22 ) and the separating plate ( 44 ).  
   
   
       32 . A form tool according to  claim 29 , in which the holding and punching device ( 43 ) comprises a fixed punching thrust bearing ( 41 ), a holding plate ( 42 ) that can be lowered, and a hoop-steel knife ( 46 ) that can be lowered to the punching thrust bearing ( 41 ).  
   
   
       33 . A form tool according to  claim 21 , in which the ventilation bores ( 27 ) are arranged in the holding sheath ( 21 ).  
   
   
       34 . A form tool according to  claim 21 , in which the threaded sheath ( 22 ) travels a path between the original and the end position equivalent from 10% to 25% of their circumference.