JP2515769Y2 - Ice storage detector of ice machine - Google Patents

Description

[Detailed Description of the Invention] a. Industrial field of application The present invention has an ice storage detector of an ice making machine, and in particular, a magnetic proximity switch having a detection surface and a sensing unit corresponding to the detection surface, and is rotatable. The present invention relates to an ice storage detector of an ice making machine, which comprises an ice detection plate pivotally supported on the.

b. Conventional technology Conventionally, an ice storage detector using a magnetic proximity switch has been used by being attached to the ceiling of an ice storage or the upper part of the outlet of an ice discharge port.

FIGS. 4 and 5 show a conventional ice storage detector 5 (see Japanese Utility Model Laid-Open No. 61-98961) mounted on the ceiling of the ice storage 4, and in front of the ice discharge port 2. An attachment plate 7 is fixedly mounted on the mounting plate 7, and an ice detecting plate 9 having a sensitive portion 9a and an ice receiving surface 9c is rotatably supported by a supporting shaft 8 thereof. The sensitive portion 9a of the ice detecting plate 9 is naturally positioned corresponding to the detecting surface 6a of the magnetic proximity switch 6 provided on the ceiling.

Now, the ice made by an ice making mechanism (not shown) is stored in the ice storage 4 through the ice discharge port 2, and the ice is increased in the ice storage 4, and the ice receiving surface of the ice detection plate 9 is increased. When 9c is pushed by the weight of ice or the discharge pressure of ice, the ice detecting plate 9 rotates about the support shaft 8 and the sensitive portion 9a at the upper end thereof detects the detecting surface.
When moving away from 6a, the contact of the magnetic proximity switch 6 is turned on or off, and the operation of the ice maker is stopped.

c. Problems to be solved by the invention In the conventional ice storage detector of the ice making machine, since the magnetic force of the magnetic proximity switch acts on the sensitive portion of the ice detecting plate, it is gradually changed like the auger type ice making machine. When accumulating ice on the ice and detecting slippery ice, the weight of the ice on the ice detection surface changes depending on the ice accumulation shape (usually conical), and the ice detection plate is The force to rotate it cannot be obtained, and the ice storage detection signal cannot be issued, causing a serious accident. Also, in the case of rotating the ice detection plate by the ice discharge pressure from the ice discharge port, the more the large force is required to rotate the ice detection plate, the more the ice is compressed in the ice discharge port. The degree to which the ice is blown is large, and the compressed rod-shaped ice is suddenly pushed out from the ice discharge port, causing the malfunction of rotating the ice detection plate and stopping the ice making machine.

Furthermore, in order to reduce the attraction force due to the magnetic force of the magnetic proximity switch, when the area of the sensitive portion of the ice detection plate is reduced, the sensitive portion has a magnetic range of the magnetic proximity switch,
That is, there is a problem that it is easy to get out of the adsorption area, which also causes a malfunction.

The present invention has been made to solve the above-described problems of the ice storage detector of the conventional ice making machine, and it is an object of the present invention to provide an ice storage detector of an ice making machine that operates reliably regardless of ice quality. Has an aim.

d. Means for Solving the Problems In order to achieve the above object, the present invention has a magnetic proximity switch having a detection surface and a sensitive portion corresponding to the detection surface, and is rotatably pivotally supported. In an ice detector for an ice making machine including an ice detection plate, a rotation stop piece is provided to restrict the sensitive portion of the ice detection plate from rotating toward the detection surface due to the magnetic force of the magnetic proximity switch. It is a thing.

e. Operation In the present invention, since the sensitive portion of the ice detecting plate is provided with the rotation stopping piece that restricts the rotation of the sensitive portion of the ice detecting plate in the direction approaching the detecting surface due to the magnetic force of the magnetic proximity switch, the provided rotation stopping piece is provided. The position or size of the motion stop piece determines the distance between the sensing surface and the sensitive part, and the distance between the sensing surface and the sensing part does not increase the attraction force due to the magnetic force. It is possible to always maintain a constant distance between the detection surface and the sensitive portion without being affected by the error due to.

Therefore, the distance between the detection surface and the sensitive portion can be set according to each magnetic proximity switch, and an ice storage detector that can reliably rotate the ice detection plate with a small force can be very easily made.

f. Embodiment An embodiment of the present invention will be described below with reference to the ice storage detector of the ice making machine shown in the drawings.

As shown in FIG. 1, an ice discharge port 2 is fixed to the upper portion of the ice making mechanism 1, and the tip of the ice discharge port 2 is connected to an ice guide tube 3. The ice guide cylinder 3 is installed upright in parallel with the ice making mechanism unit 1 and attached to the ice storage unit 4, and guides the ice made by the ice making mechanism unit 1 into the ice storage unit 4 via the ice discharge port 2.

As shown in FIG. 2, the ice storage detector 5 is arranged on the ice guide cylinder 3 and is provided on a magnetic proximity switch 6 having a detection surface 6a and a mounting plate 7 fixed to the guide cylinder. The ice detecting plate 9 is rotatably supported by the support shaft 8. The ice detecting plate 9 comprises a sensitive portion 9a arranged at a position corresponding to the detecting surface 6a of the magnetic proximity switch 6 and an ice receiving surface 9c arranged so as to face the ice discharge port 2. The tip of the sensitive portion 9a is bent upward to integrally form a rotation stopping piece 9b. The position of the rotation stop piece 9b is in a region outside the detection surface 6a and not affected by the magnetic force of the magnetic proximity switch 6.

Now, the ice making operation is continued, the ice made in the ice making mechanism part 1 is filled in the ice storage 4, and the ice is further accumulated in the ice guide cylinder 3 to reach the position of the phantom line in FIG. Then, the ice sent out from the ice discharge port 2 pushes the ice receiving surface 9c at a substantially right angle, and the ice detecting plate 9 rotates around the support shaft 8 to the position of the phantom line in FIG. Move. Therefore, the sensitive portion 9a of the ice detecting plate 9 is moved away from the detecting surface 6a of the magnetic proximity switch 6, and the magnetic proximity switch 6 is turned on.
The ice making operation is stopped after a certain time by a control circuit or a timer (not shown).

If the height of the rotation stop piece 9b of the ice detection plate 9 is set so that the distance between the detection surface 6a of the magnetic proximity switch 6 and the sensitive section 9a is the maximum distance at which the magnetic proximity switch can be operated, the ice detection plate 9b can detect ice. The magnetic force of the magnetic proximity switch 6 acting on the sensitive portion 9a of the plate 9 is always the minimum required. Therefore, the attraction force by the magnetic force of the magnetic proximity switch 6 does not cause the sensitive portion 9a of the ice detecting plate 9 to be attracted to deactivate the ice detecting plate 9. That is, the ice in the ice discharge port 2 is not compressed to be connected ice (block-shaped ice), and due to this, the ice cannot be started by the connected ice or the ice detector 9 is rotated at the time of restart. The malfunction does not occur.

Further, since the sensitive section 9a is separated from the magnetic proximity switch 6, the magnetic field is widened and the magnetic proximity switch 6 can be operated regardless of the shape of the sensitive section 9a.

Further, even when the ice storage detector 5 is installed in the ice storage 4, the adsorption force by the magnetic force of the magnetic proximity switch 6 can be set to a necessary minimum, so that the ice is extremely slippery (for example, flaky ice). However, the ice storage can be reliably detected.

In the above embodiment, the rotation stopping piece 9b is formed integrally with the ice detecting plate 9, but it may be a separate body, and if the material is a non-magnetic material, its attachment position is anywhere on the detecting surface 6a. Good.

Further, the rotation stop piece 9b does not necessarily have to be provided on the ice detection plate 9, and may be on the machine base side, for example, the ceiling of the ice storage, the mounting plate,
The same action and effect can be obtained by providing the ice guide cylinder.

g. Effect of the Invention According to the present invention, since the sensitive portion of the ice detecting plate is provided with the rotation stopping piece for restricting the rotation of the sensitive portion of the ice detecting plate in the direction approaching the detecting surface by the magnetic force of the magnetic proximity switch, Since the distance between the surface and the sensitive part can be set to the place where the magnetic force of the magnetic proximity switch is minimized, it is possible to reliably detect ice storage regardless of the ice quality and the shape of the sensitive part. You can

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of an ice making machine to which an ice storage detector according to an embodiment of the present invention is applied, and FIG. 2 is an enlarged sectional view of an essential part of FIG. 1, and FIG.
The figure is an enlarged cross-sectional view of the main part of FIG. 2, FIG. 4 (A) is a front view of a conventional ice storage detector, FIG. 4 (B) is a side view of the same ice storage detector, and FIG. It is sectional drawing which shows the use condition of a detector. 1 ... Ice making mechanism part, 2 ... Ice discharge port, 3 ... Ice guide tube,
4 ... Ice storage, 5 ... Ice storage detector, 6 ... Magnetic proximity switch, 6a ... Detection surface, 7 ... Mounting plate, 8 ... Spindle, 9 ...
… Ice detection plate, 9a… Sensing part, 9b… Rotation stop piece, 9c…
Ice receiving surface.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Susumu Tatematsu 16-16, Hoshizaki Electric Co., Ltd., 3rd building, Sakaemachi South Building, Toyoake City, Aichi Prefecture (56) Bibliography Sho 61-98961 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. An ice storage detector of an ice making machine, comprising: a magnetic proximity switch having a detection surface; and an ice detection plate having a sensitive portion corresponding to the detection surface and pivotally supported. An ice storage detector for an ice making machine, wherein a sensitive portion of the detection plate is provided with a rotation stopping piece for restricting the rotation of the sensitive portion of the sensing plate in the direction approaching the detection surface due to the magnetic force of the magnetic proximity switch.