EP0662593B1 - Machine for making ice cubes, including a safety device against the overload of the tray tilting mechanism - Google Patents

Machine for making ice cubes, including a safety device against the overload of the tray tilting mechanism Download PDF

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Publication number
EP0662593B1
EP0662593B1 EP95830001A EP95830001A EP0662593B1 EP 0662593 B1 EP0662593 B1 EP 0662593B1 EP 95830001 A EP95830001 A EP 95830001A EP 95830001 A EP95830001 A EP 95830001A EP 0662593 B1 EP0662593 B1 EP 0662593B1
Authority
EP
European Patent Office
Prior art keywords
machine
cam
water tray
motor unit
geared motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95830001A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0662593A1 (en
Inventor
Pasquale Procopio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EURFRIGOR Srl
Original Assignee
EURFRIGOR Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EURFRIGOR Srl filed Critical EURFRIGOR Srl
Publication of EP0662593A1 publication Critical patent/EP0662593A1/en
Application granted granted Critical
Publication of EP0662593B1 publication Critical patent/EP0662593B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • F25C1/08—Producing ice by immersing freezing chambers, cylindrical bodies or plates into water

Definitions

  • the present invention relates to a machine for making ice cubes as defined in the preamble of claim 1.
  • a machine which includes a safety device against the overload of the water tray or basin tilting mechanism, is known, for example, from GB-A-2 090 955.
  • the formed ice cubes are ejected by downward tilting the tray, owing to the provision of a grid allowing the ice cubes to be outwardly ejected.
  • the tray in particular, is tilted by a cam, controlled by a connecting rod, which cyclically causes the tray to turn during a lowering step and, then, in a raising step in order to recover it to the starting conditions thereof.
  • the aim of the present invention is to overcome the above mentioned drawbacks, by providing an ice cube making machine, including a safety device adapted to protect the machine against a possible overload of the tray tilting mechanism thereof.
  • a main object of the present invention is to provide such a safety device which is also specifically designed for protecting both the mechanical parts of the machine and the geared motor unit thereof from possible overloads.
  • Yet another object of the present invention is to provide such an ice cube making machine which is adapted to automatically remove any damaging obstacles during the operation thereof.
  • Yet another object of the present invention is to provide such an ice cube making machine which is very reliable and safe in operation, can be easily made starting from easily available elements and materials and which, moreover, is very competitive from a mere economic standpoint.
  • an ice cube making machine including a safety device for protecting against overloads a tilting mechanism of a water tray thereof, said water tray being pivoted to a machine bearing framework and coupled, through a rod, to a cam, driven by a geared motor unit, for cyclically tilting said water tray, characterized in that said machine further comprises clutch means, arranged between said cam and geared motor unit, for preventing obstacles for damaging said machine during the tilting operation of said water tray.
  • the ice cube making machine 1 including a safety device for protecting the machine elements against possible overloads of the water tray tilting mechanism, comprises a bearing framework 2, to which there is pivoted or articulated, at one end portion thereof, a water tray 3 provided for receiving ice forming water, being supplied to a set level, through a water controlling float.
  • a grid 6 also pivoted on the same pivoting axis as the water tray; moreover there is provided an evaporator 7, including lugs 8, immersed in the water tray.
  • the machine further comprises a bladed shaft 9, associated with a geared motor unit therefor, in order to stir the ice forming water and detect the size of the ice cubes being formed, so as to stop an ice cube making cycle and start another ice cube making cycle.
  • the water tray can be tilted, owing to the provision of a rod 11, which is pivoted to a middle point of said tray and, at the other end thereof, to the periphery of a circular cam 13, provided with a notch 14, thereon a microswitch 15 operates, in order to control or drive a geared motor unit 16 for operating the cam.
  • the cam 13 is connected to the shaft 17 projecting from the geared motor unit 16 through the interposition of clutch means.
  • Said clutch or friction means are provided with a conic end piece 20, keyed on the shaft 17, which engages in a conic seat or recess 21, provided on the hub 22 of the cam 13.
  • the friction contact is performed owing to the provision of one or more cup springs 24, arranged on the shaft 17 and held in a pressed condition by a nut 25, coupled to the threaded end portion 26 of the shaft 17; the cup springs, in particular, affect a washer 27, which axially presses on the hub 22, including the mentioned conic recess.
  • the conic end piece 20 and conic recess 21 will mutually slide, thereby affording a free operation of the geared motor unit, without damaging this latter or other mechanical elements.
  • the clutch or friction means can comprise a cylindric end piece 30, including a flange 31 and keyed on the shaft 17.
  • the mentioned resilient means instead of being formed by one or more cup springs, can comprise a coil spring 40 or any suitable resilient means.
  • Figure 6 is a detail view illustrating the operation cycle of the cam, and clearly shows the locating of the coupling rod which, during the cyclical rotation of the cam, will cause the water tray to be lowered and then raised again.
  • clutch or friction means which have been specifically designed for disengaging the geared motor unit and water tray, by providing two sliding surfaces which are precisely made of materials adapted to allow a continuous type of sliding, for a time which is sufficient to provide a perfect operation of the machine.
  • the provided mechanism allows to reduce the weight of the mechanical assembly, since it overcomes the requirements of resisting against high efforts due to the presence of obstacles.
  • the used materials can be any, according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)
  • Production, Working, Storing, Or Distribution Of Ice (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP95830001A 1994-01-11 1995-01-11 Machine for making ice cubes, including a safety device against the overload of the tray tilting mechanism Expired - Lifetime EP0662593B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT94MI000016U IT232673Y1 (it) 1994-01-11 1994-01-11 Macchina per la produzione di blocchetti di ghiaccio, provvista di un dispositivo di sicurezza, contro il sovraccarico del meccanismo di
ITMI940016U 1994-01-11

Publications (2)

Publication Number Publication Date
EP0662593A1 EP0662593A1 (en) 1995-07-12
EP0662593B1 true EP0662593B1 (en) 1996-12-04

Family

ID=11367470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95830001A Expired - Lifetime EP0662593B1 (en) 1994-01-11 1995-01-11 Machine for making ice cubes, including a safety device against the overload of the tray tilting mechanism

Country Status (5)

Country Link
EP (1) EP0662593B1 (es)
DE (1) DE69500097T2 (es)
ES (1) ES2096506T3 (es)
GR (1) GR3022146T3 (es)
IT (1) IT232673Y1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1757880B1 (en) * 2005-06-20 2008-08-27 Brema Ice Makers SpA Machine with a container and a device for controlling the tilting of said container
EP1736722A1 (en) * 2005-06-20 2006-12-27 Brema Ice Makers SpA Device for controlling the tilting of a container

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8120442V0 (it) * 1981-01-09 1981-01-09 Castel Mac Spa Macchina perfezionata per laproduzione di cubetti di ghiaccio.
DE69311452T2 (de) * 1992-07-31 1997-10-23 Hoshizaki Electric Co Ltd Eiserzeugungsmaschine

Also Published As

Publication number Publication date
ITMI940016U1 (it) 1995-07-11
DE69500097T2 (de) 1997-06-12
ES2096506T3 (es) 1997-03-01
EP0662593A1 (en) 1995-07-12
DE69500097D1 (de) 1997-01-16
IT232673Y1 (it) 2000-01-19
ITMI940016V0 (it) 1994-01-11
GR3022146T3 (en) 1997-03-31

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