Convertible refrigerated display case
View Patent ↗A refrigerated display case having a bearing base and a top glass compartment designed to be alternatively used to display home made ice cream and pastry, the display case has a horizontal wall above the base designed to house the containers of homemade ice cream and having a pair of shelves designed to support pastry trays inside the front wall of the glass compartment the shelves being able to slide together towards the top of the glass compartment in order to be concealed from the sight of customers situated in front of the display case.
1. Convertible refrigerated display case comprising a bearing base ( 1 ) and a glass compartment ( 2 ), with the interposition of a basically horizontal wall ( 3 ) that supports ice cream containers ( 4 ), characterised by the fact that the display case is provided with, a lower shelf ( 5 ) and an upper shelf ( 6 ) positioned internally on a front wall of the glass compartment ( 2 ) the shelves being assisted by actuators ( 7 ) positioned vertically within the display case, the respective shelves being slidably mounted on the actuators wherein the shelves may be movable from an upper rest position, through intermediate operative positions to a lower rest position, wherein when the shelves are in the upper rest position, the shelves touch one another in a compact arrangement and the shelves do not interfere with viewing goods within the display case wherein in the lower rest position, the shelves are arranged at different height in a basically central area of the glass compartment ( 2 ).
2. Convertible refrigerated display case as claimed in claim 1 , characterised by the fact that the actuators designed to move the shelves ( 5 , 6 ) consist of two threaded bars ( 7 ) positioned in basically vertical direction, in such a way that a lower end of each bar is engaged inside the base ( 1 ) connected to a gear motor ( 100 ) designed to impose inverse rotations and an upper end of each bar is arranged at a top of the glass compartment ( 2 ); the lower shelf ( 5 ) is coupled with the said pair of threaded bars ( 7 ) by means of a pair of nuts ( 5 a ) and the upper shelf ( 6 ) is coupled with the threaded bars by means of a pair of freely sliding couplings ( 6 a ); wherein the inverse rotations of the two threaded bars ( 7 ) determine the upward and downward sliding of the said nuts ( 5 a ) of the lower shelf ( 5 ) upward and downward movement of the upper shelf being determined by corresponding movement of the lower shelf.
3. Convertible refrigerated display case as claimed in claim 2 , characterised by the fact that downward movement of the upper shelf is determined by a pair of fixed projections ( 8 ) in very close position to the two threaded bars ( 7 ), in such a way that the fixed projections interfere with the lower ends of the couplings ( 6 a ) of the upper shelf ( 6 ) and are released without interference inside two corresponding longitudinal grooves ( 5 b ) provided in external position on the two nuts ( 5 a ) and the lower shelf ( 5 ).
4. Convertible refrigerated display case as claimed in claim 2 , characterised by the fact that each gear motor ( 100 ) designed to actuate a corresponding threaded bar ( 7 ) is internally mounted in the base ( 1 ) with longitudinal axis perfectly parallel to the longitudinal axis of the bar; it being provided that the electrical gear motor ( 100 ) actuates a pinion ( 101 ) splined in the shaft engaged with a drive chain ( 102 ) that is engaged by means of a chain tensioner ( 103 ) with two toothwheels ( 104 ) respectively splined at the lower end of the threaded bars ( 7 ).
5. Convertible refrigerated display case as claimed in claim 1 , characterised by the fact that the actuators ( 7 ) designed to move the two sliding shelves ( 5 , 6 ) consists of a pair of rotary chains with closed circuit along basically vertical trajectory that are actuated by means of corresponding electrical motors housed inside the bearing base ( 1 ).
6. Convertible refrigerated display case as claimed in claim 1 , characterised by the fact that the actuators ( 7 ) designed to move the two sliding shelves ( 5 , 6 ) consists of a pair of jacks.
7. Convertible refrigerated display case as claimed in claim 1 , characterised by the fact that it is provided with a series of covers used to cover openings ( 3 a ) obtained in the horizontal wall ( 3 ) between the bearing base ( 1 ) and the glass compartment ( 2 ).
8. Convertible refrigerated display case as claimed in claim 1 , characterised by the fact that the actuators ( 7 ) designed to move the two shelves ( 5 , 6 ) are housed and supported inside uprights ( 9 ) for free sliding of the shelves ( 5 , 6 ).
9. Convertible refrigerated display case as claimed in claim 8 , characterised by the fact that the uprights ( 9 ) of each threaded bar ( 7 ) consists of the corresponding lateral upright of the glass compartment ( 2 ).
10. Convertible refrigerated display case as claimed in claim 8 , characterised by the fact that the uprights ( 9 ) of each threaded bar ( 7 ) consists of a dedicated upright situated at an end of the glass compartment ( 2 ).