JPS5931135Y2 - Rotating shelf hot air circulation oven - Google Patents

Description

[Detailed explanation of the invention] This invention is equipped with a hot air circulation mechanism and a rotating shelf inside the heating chamber.
This invention relates to a rotary shelf type hot air circulation oven that uses a trolley with an elevating shelf to carry food and other objects to be heated into and out of a heating chamber at one time for cooking.

Traditionally, hot air circulation ovens have a multi-stage rotating shelf in the heating chamber and cook many foods while rotating the food on the shelf. The disadvantage is that the task of replacing food is complicated and takes a lot of time.

This invention was made in order to eliminate the above-mentioned drawbacks, and the purpose is to provide a rotating shelf type hot air circulation oven that allows for easy and quick loading and unloading of foods and other heated items. do.

Hereinafter, embodiments of this invention will be described based on the drawings.

FIG. 1 shows a longitudinal sectional view of a hot air circulation oven and a side view of a cart 1 with an elevating shelf.

Inside the heating chamber 2 of the oven, a rotating shelf 3 has an upper and lower rotating shaft 3a.
and 3b are supported by the ceiling and floor, and the rotating shelf 3 is slowly rotated by a rotation drive mechanism 4 attached to the lower part.

As shown in FIGS. 1 and 2 (A-A sectional view), each column 3C of this rotating shelf 3 is formed in a horse-trace shape, and three points on the outer side thereof are vertically erected. They are each fixed to three shelf frames 3d, and are arranged in multiple vertical stages at predetermined intervals.

Furthermore, a hot air circulation mechanism (not shown) is disposed within the heating chamber 2.

The rotational drive mechanism 4 consists of a motor 4a with a reduction gear, a gear 4b attached to its output shaft, and a gear 4C attached to a rotating shaft 3b, and rotates the rotating shelf 3 at a constant slow speed. It is a structure to be driven.

Furthermore, this rotary drive mechanism 4 is provided with a fixed position stop device consisting of a circuit shown in FIG. This structure operates the switch LS.

In the sequence circuit diagram shown in FIG. 3, Sl is a start switch, Sl is a stop switch, ICR and 2CR are relays, and after the stop switch S2 is operated while the motor 4a is operating, the limit switch LS is activated by the protrusion 9. When turned off, the motor 4a operates to stop.

The cart 1 with an elevating shelf has a vertical support frame 6 erected on one side of a base 5 equipped with four wheels, and an elevating shelf 7 can be slid up and down on this vertical support frame 6 by operating a lever 8. installed and configured,
When carrying food into or out of the heating chamber 2, it is used to transfer the food placed on the tray 15 to the rotating shelf 3.

The elevating shelf 7 is formed by attaching horizontally protruding multi-level shelves 7a to a vertical frame 7b, and the vertical frame 7b is externally fitted onto the vertical support frame 6 of the base 5 so as to be vertically slidable.

Next, the operation of the hot air circulation oven configured as described above will be explained.

First, when carrying food on a tray 15 into the heating chamber 2 of the oven, the tray 15 containing food is placed on the lifting shelf 7 of the trolley 1 taken out of the heating chamber 2, and the lever 8
With the lifting shelf 7 raised to a predetermined height by operating the trolley 1, the cart 1 is carried into a fixed position within the heating chamber 2 of the oven (FIG. 4).

Then, by operating the lever 8 and lowering the elevating shelf 7, the tray 15 is placed on the rotating shelf 3.

In this state, the lifting cart 1 is pulled out of the heating chamber 2 to complete the loading, the door is closed, hot air is circulated inside the heating chamber 2, and the rotational drive mechanism 4 operates to move the rotating shelf 3 in a fixed direction. Cooking is done by rotating the pan slowly.

Then, when the stop switch S2 is turned off after the required time has elapsed, the protrusion 9 of the gear 4C moves to the limit switch L.
The rotary shelf 3 is rotated to the S position to turn it off, and the rotating shelf 3 is in a predetermined position.
C and the shelf 7a of the truck 1 are stopped at a specific position where they do not engage with each other.

That is, when the stop switch S2 is turned off, the relay 1
CR is deenergized and its contacts ICR1 and ICR2 are turned off, but Lou-2CR continues to be energized and is deenergized when limit switch LS is turned off, contact 2CR2 is turned off and motor 4a stops. .

Thereafter, the cooked food on the tray 15 is taken out from the rotating shelf 3 by the cart 1 with an elevating shelf.

As described above, according to the hot air circulation oven of this invention, the objects to be heated can be carried in and out of the heating chamber all at once using a cart with an elevating shelf, making it easy and quick to carry in and out the objects to be heated. I can do it.

In addition, the fixed position stop device provided in the rotary drive mechanism of the rotary shelf allows the rotary shelf to be always stopped at a specific position, so that the object to be heated can be brought in and taken out by the cart with the elevating shelf without any hindrance.

[Brief explanation of the drawing]

The figures show an embodiment of this invention. Figure 1 is a longitudinal sectional view of a hot air circulation oven and a cart with an elevating shelf, and Figure 2 is a cross-sectional view of the A--
A sectional view, FIG. 3 is a sequence circuit diagram of the rotary drive mechanism of the rotary shelf, and FIG. 4 is a vertical sectional view of the oven and the trolley with the elevating shelf in a state where the shelf is raised in the heating chamber. 1... Cart with elevating shelf, 2... Heating chamber,
4... Rotation drive mechanism, 7... Elevating shelf.

Claims (1)

[Scope of utility model registration request] An oven main body comprising a hot air circulation mechanism in a heating chamber, a multi-stage rotating shelf in the heating chamber, and a fixed position stop device in the rotating drive mechanism of the rotating shelf to always stop the rotating shelf at a fixed position. , an elevating shelf in which a shelf corresponding to each column of the rotating shelf is movable up and down, and all objects to be heated can be transferred between the elevating shelf and the rotating shelf by the elevating and lowering operation of the elevating shelf. A rotating shelf-type hot air circulation oven consisting of a cart with shelves.