IP Library Granted Patent US 7,273,990
Granted Patent B2
US 7,273,990 · App. 11/270,589 · Granted Sep 25, 2007

Ice storage detection switch

Assignee: Hoshizaki Denki Kabushiki Kaisha
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Quick Facts
Patent No.
US 7,273,990
App. No.
11/270,589
Granted
Sep 25, 2007
Kind
B2
Abstract

The present invention provides an ice storage detection switch for detecting an ice level in an ice storage chamber of an ice making machine including: a magnet lever rotatably fitted to the switch lever, for holding the magnet so that the magnet is located in a vicinity of the reed switch when the switch lever is not pressed; and a projecting portion formed on the switch case to be located between a rotational center of the magnet lever and the reed switch, the magnet separating from the reed switch through abutment of the magnet lever on the projecting portion and rotation of the magnet lever when the switch lever is pressed.

Claims (12)

1. An ice storage detection switch for detecting an ice level in an ice storage chamber of an ice making machine, the ice storage detection switch comprising:

a switch case equipped with a reed switch and fixed in the ice storage chamber of the ice making machine;

a switch lever having a magnet and movably fitted to the switch case;

a magnet lever rotatably fitted to the switch lever, for holding a magnet so that the magnet is located in a vicinity of the reed switch when the switch lever is not pressed; and

a projecting portion formed on the switch case to be located between a rotational center of the magnet lever and the reed switch,

the ice level in the ice storage chamber being detected in accordance with a change in a clearance between the reed switch and the magnet,

the magnet separating from the reed switch through abutment of the magnet lever on the projecting portion and rotation of the magnet lever when the switch lever is pressed by ice in the ice storage chamber.

2. An ice storage detection switch according to claim 1 , wherein:

the switch lever is rotatably fitted at an upper end of the switch lever to the switch case; and

the switch case is fixed to a lateral wall in the ice storage chamber at such an inclination angle that a lower end of the switch lever separates from the switch case due to the own weight of the switch lever when the switch lever is not pressed by ice.

3. An ice storage detection switch according to claim 1 , wherein:

the magnet lever rotates around one end thereof and holds the magnet at the other end thereof, the middle portion of the magnet lever abutting on the projecting portion.

Assignments (2)
CHANGE OF NAME Recorded Sep 14, 2016
From: HOSHIZAKI DENKI KABUSHIKI KAISHA
To: HOSHIZAKI CORPORATION
Reel/Frame 040026/0753 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2005
From: YOSHIDA, KAZUHIRO; OTA, HIDEJI; SUGITA, ATSUSHI
To: HOSHIZAKI DENKI KABUSHIKI KAISHA
Reel/Frame 017401/0790 →
Continuity (1)
Related Publication 20070103323A1 · May 10, 2007