Ice making device

Abstract

An ice making device is provided. In the ice making device, a drive unit includes an ice sensing shaft driven to rotate by a cam surface of a cam gear, a biasing member that biases the ice sensing shaft toward the cam surface, and a second case member. The second case member includes a stopper that comes in contact with the ice sensing shaft from one side of the ice sensing shaft in an axis and limits the ice sensing shaft in the axis direction when the ice sensing shaft is assembled and the biasing member is elastically deformed. When the ice sensing shaft positioned by the stopper is rotated around the axis, a spring engaging part passes through a notch of a side wall and compresses the biasing member.

What is claimed is: 
     
         1 . An ice making device comprising:
 an ice making tray in which recessed parts for water storage are disposed upward; and   a drive unit that drives to rotate the ice making tray around a first axis that extends in a direction crossing a vertical direction,   wherein the drive unit comprises a cam gear connected to the ice making tray, an ice sensing shaft that is connected to an ice detection lever and is driven to rotate by a cam surface of the cam gear, a biasing member that biases the ice sensing shaft toward the cam surface, and a supporting member that supports the cam gear, the ice sensing shaft, and the biasing member, and   wherein the supporting member comprises a stopper that comes in contact with the ice sensing shaft from one side in a second axis direction, which is a direction of a second axis an axis of the ice sensing shaft, and the stopper limits a position of the ice sensing shaft in the second axis direction when the biasing member is elastically deformed by assembling the ice sensing shaft.   
     
     
         2 . The ice making device according to  claim 1 ,
 wherein the biasing member is a compression coil spring whose axis direction goes along a direction crossing the second axis, and   wherein a spring engaging part protrudes from an outer circumferential surface of the ice sensing shaft, the spring engaging part is in contact with one end of the compression coil spring and compresses the compression coil spring when the ice sensing shaft is rotated around the second axis while the position of the ice sensing shaft is limited by the stopper.   
     
     
         3 . The ice making device according to  claim 2 ,
 wherein the supporting member comprises a partition wall on which a notch is provided at a position that faces the one end of the compression coil spring, and   wherein, when the ice sensing shaft is rotated around the second axis at the position limited by the stopper, the spring engaging part passes through the notch and comes in contact with the one end of the compression coil spring.   
     
     
         4 . The ice making device according to  claim 3 , wherein, when the ice sensing shaft has been assembled, the spring engaging part is at a position biased to one side of the notch in the second axis direction. 
     
     
         5 . The ice making device according to  claim 4 , wherein the spring engaging part is in contact with the one end of the compression coil spring at a position biased to one side from a center of the partition wall in the second axis direction. 
     
     
         6 . The ice making device according to  claim 4 , wherein, an inclined part is formed on at least one of a side end disposed on a side opposite to the compression coil spring in the spring engaging part and a partition wall side end that faces the side end in the partition wall, the inclined part moves the ice sensing shaft to one side in the second axis direction by a biasing force of the compression coil spring when the side end comes in contact with the partition wall side end. 
     
     
         7 . The ice making device according to  claim 6 , wherein the inclined part is formed as a surface on one of the side end and the partition wall side end and is formed as a convex part on the other of the side end ( 31   t ) and the partition wall side end. 
     
     
         8 . The ice making device according to  claim 6 , wherein the inclined part is formed on both the side end and the partition wall side end. 
     
     
         9 . The ice making device according to  claim 8 , wherein the inclined part is formed as a surface on both the side end and the partition wall side end. 
     
     
         10 . The ice making device according to  claim 1 , wherein the stopper is a step part that is formed on a base of a seat part at which a screw is stopped in the supporting member. 
     
     
         11 . The ice making device according to  claim 1 , wherein the stopper is a plate-like convex part that protrudes from the supporting member.