JPH0614717Y2 - Flyer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Use and Outline of the Invention] The present invention provides a fryer, in particular, a top plate for preventing oil splashing, which is used for controlling the oil temperature on the top plate. The present invention relates to a commercial fryer equipped with a hot water temperature detector and a safety switch that enables a heating device to operate only when the hot water temperature detector is properly set. This is to prevent the safety switch from malfunctioning due to oil components adhering to it or impacts from the outside, so that opening and closing of the top plate and ON / OFF of the safety switch are linked. To do.

[Prior Art and its Problems] Generally, as shown in FIG.
An oil temperature detecting tool for detecting the temperature of the oil is installed in the oil tank peripheral portion, and the output of the oil temperature detecting tool is input to the control device, and the heating device is restricted by this control device to restrict the oil tank. The oil temperature inside is kept constant.

The heat-sensitive part (32) of this oil temperature detection tool is in a detection state when it is put into the oil tank (2), and is in a non-detection state when retracted from the oil tank (2) to the heating device. The safety switch (4) inserted in the electric circuit or control circuit of the
The contact is closed only when 2) is detected.

In the fryer equipped with this conventional oil temperature detector and safety switch (4), when the heat-sensitive part (32) is immersed in the oil in the oil tank (2), the safety switch (4) becomes conductive and the operation switch of the equipment The heating device can be activated by
The oil temperature in the oil tank is maintained at the set temperature by the action of the oil temperature detector. Even if the heating operation is accidentally performed without setting the heat sensing part (32) to the detection state, the safety switch (4) maintains the control circuit of the instrument in the non-conduction state, so that there is no danger.

However, in this conventional device, the open end of the oil tank (2) is directly opened to the upper surface of the instrument body (10), so that oil splashes during cooking may cause burns. Also, the open peripheral part of the instrument body (10) becomes dirty and unsightly due to this splash.

In order to prevent such a problem, an oil splash prevention frame is provided above the oil tank (2), and the heat sensitive part (32) of the oil temperature detection tool is connected to the oil tank (2) through the opening of the oil splash prevention frame. Although it is possible to put it in the inside, in this improvement plan, it is necessary to rotate the oil temperature detecting tool upward before opening and closing the oil splash prevention frame, and the operation of opening and closing the oil splash prevention frame is performed. It is troublesome. Further, since the heat sensitive part (32) is charged through the opening, the charging position approaches the center of the oil tank (2), and the heat sensitive part (32) becomes an obstacle during cooking.

[Technical problem] According to the present invention, such an "oil tank (2) is housed in the instrument body (10), and an oil splash prevention frame (3) is disposed above the oil tank (2). The heat sensitive part (32) of the oil temperature detection tool is housed in the oil tank, and the heat sensitive part
It is equipped with a safety switch (4) that becomes conductive when the position and posture of (32) with respect to the oil tank (2) are properly set, and controls the heating device by the output of the oil temperature detection tool to control the oil temperature. In order to keep the oil splash prevention frame (3) open and close easily and to keep the heat sensitive part (32) out of the way during cooking, 32) is located below the oil splash prevention frame (3) and the safety switch (4) is turned on in conjunction with the opening and closing of the oil splash prevention frame (3).
・ Turning it off is a technical issue.

[Technical Means] The technical means of the present invention taken in order to solve the above technical problem is that "the oil splash prevention frame (3) is rotatably attached to the upper surface of the instrument body (10) and the safety switch ( 4) to reed switch (41)
And, at least when the device is used, a sheath pipe (11) placed in the oil tank (2) is placed in the oil tank (2), and the injection position of the sheath pipe (11) is set near the side wall of the oil tank (2). The pipe (11) accommodates the reed switch (41) and the heat-sensitive part (32), and approaches the reed switch (41) in the sheath pipe (11) when the oil splash prevention frame (3) is closed. The permanent magnet (1) is arranged at the position where

[Operation] The technical means of the present invention operates as follows.

Since the injection position of the sheath tube (11) in the oil tank (2) is located in the vicinity of the side wall of the oil tank (2), when the oil splash prevention frame (3) is closed, the sheath tube (11) is Is located outside the opening (33) and is protected by the oil splash prevention frame (3).

Also, in this closed state, the reed switch (41) is
Since it is close to (1), the reed switch (41) becomes conductive, and the heat sensitive section (32) detects the oil temperature in the oil tank (2). That is, the heating device can be activated by turning on the operation switch of the appliance with the oil splash prevention frame (3) closed and the heat sensing section (32) detects the oil temperature, The oil temperature can be maintained at the set temperature. When the oil tank (2) is taken out, the reed switch (41) is turned off when the oil splash prevention frame (3) is rotated to open the upper part of the oil tank (2), and the control circuit of the device It becomes non-conductive.

Further, the sheath pipe (11) for accommodating the heat sensitive part (32) is an oil splash prevention frame (3).
Since it is disposed inside, the oil temperature detection tool is not exposed to the outside of the fryer in the oil temperature detection state in which the oil splash prevention frame (3) is closed.

[Effects] The present invention having the above-described configuration has the following unique effects.

Since the safety switch (4) automatically becomes conductive by closing the oil splash prevention frame (3), no special operation is required to put this safety switch (4) in the safety set state. is there.

Since the safety switch (4) is configured to be housed in the sheath tube (11) and the safety switch (4) is composed of the reed switch (41), the safety switch (4) should be directly exposed to the outside. There is no. Therefore, even if the safety switch is used for a long period of time, malfunction of the contact portion of the safety switch does not occur.

Further, in the oil temperature detection state in which the oil splash prevention frame (3) is closed, the oil temperature detection tool is not exposed to the outside of the fryer, so the oil temperature detection tool should be protected from external impact. Becomes

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

The first embodiment of the present invention corresponds to the invention of claim 2, and as shown in FIGS. 1 and 2, the opening (3
Install the oil splash prevention frame (3), which is formed in the center of
It is rotatably attached to the rear end of the upper end open part of (10), and the permanent magnet (1) is attached to a predetermined position on the back surface of the oil splash prevention frame (3).
It is a projecting.

The sheath tube (11) is a hollow body made of a material with extremely small magnetic permeability, and as shown in Fig. 3, it is bent vertically near the upper end and at a predetermined position below the bent portion. A ring-shaped stopper (23) is fitted in the. A thermistor as a heat sensitive part (32) is housed in the vicinity of the lower end of the sheath tube (11), and a reed switch (41) as a safety switch (4) is housed in the horizontal part above the bent part. The lead wire cable (40) that connects the two and the instrument body.
Extend from the upper end of the sheath tube (11).

The sheath pipe (11) is an oil tank as shown in FIGS.
It can be inserted into and removed from a through hole (22) formed in the support plate (21) extended from the upper end of (2), and when inserted into the through hole (22), the stopper (23) penetrates the through hole (22). Since it will be locked at the upper end of the hole (22), the insertion depth of the sheath pipe (11) will be constant, and the insertion depth of this sheath pipe (11) will be the same as the oil splash prevention frame (3). When in the closed state, the permanent magnet (1) arranged on the back surface of the oil splash prevention frame (3) and the reed switch (41) housed in the horizontal portion of the sheath tube (11) are mutually It is set to be in close proximity.

In this embodiment, the oil tank (2) is heated by the gas thermal power, and as shown in FIG. 4, the solenoid valve inserted in the gas circuit is opened and closed to adjust the oil temperature. . Then, as an electric circuit for adjusting the oil temperature, as shown in the same figure, as an oil temperature setting device, as shown in the same figure, a variable resistor (42) and a thermistor (45) as an oil temperature setting device. The output of the bridge circuit consisting of is compared by the comparator (43), the output from this comparator is input to the switch circuit inserted in the circuit of the relay (R), and the electromagnetic inserted in the gas circuit by the relay (R). It is configured to open and close the valve.

In this case, when the lower end portion of the sheath pipe (11) is inserted from above into the through hole (22) formed in the support plate (21) with the oil splash prevention frame (3) being opened, the sheath pipe ( The part below the stopper (23) of 11) is thrown into the oil tank (2), and in this state, if the oil splash prevention frame (3) is rotated to cover the oil tank (2) above. The reed switch (41) and the permanent magnet (1) approach each other, and the reed switch (41) is closed by the magnetic force of the permanent magnet (1). Therefore, when the operation switch of the appliance is turned on in this state, the heating device can be brought into an operating state, and the heat sensitive section (32) put into the oil tank (2) becomes a detection state to control the oil temperature. It will be.

In this embodiment, as the safety switch (4), the reed switch (4
1) is adopted, it is housed in the sheath tube (11), and then the sheath tube
Since (11) cannot be projected outward from the oil splash prevention frame (3), the safety switch (4) is not directly exposed to the outside,
Therefore, no oil component is attached to the safety switch (4) and no impact is given from the outside, so that malfunction does not occur.

The second embodiment shown in FIGS. 5 and 6 corresponds to the invention of claim 3, and the oil splash prevention frame (3) is provided in the same manner as in the first embodiment. It is rotatably attached to the rear end of the upper end open part of (10), and at the predetermined position near the front end of the back surface of the oil splash prevention frame (3), the bracket (2
5) The oil splash prevention frame (3) is provided so as to project vertically, and the permanent magnet (1) is provided on the front surface of the bracket (25).

In this case, the reed switch is located near the upper end of the sheath tube (11).
(41) has a heat sensitive part (32) housed in the vicinity of the lower end thereof, and the lower area of the reed switch (41) housing part is a holding body (24).
The holder (24) is pivotally supported near the upper end of the bracket (25) near the lower end of the bracket (25). The vicinity of the lower end of the holding body (24) is rotatably connected to the free end of a link (5) pivotally supported on the front side of the support shaft of the oil splash prevention frame (3), As a result, the oil splash prevention frame (3), the holder (24), the bracket (25), and the link (5) form a four-bar linkage mechanism.

In this embodiment, when the oil splash prevention frame (3) is upright with respect to the instrument body (10) so as to be in an open state, the sheath tube (1
1) is rotated by the above-mentioned link mechanism as shown by the chain double-dashed line in FIG. 6, and the oil splash prevention frame (3)
Reed switch housed in a permanent magnet (1) provided in the bracket (25) perpendicular to the above and a sheath tube (11) rotated in a state substantially parallel to the oil splash prevention frame (3). Since it separates from (41), the reed switch (41) is turned off.

On the contrary, when the oil splash prevention frame (3) is closed, the sheath pipe (11) is supported by the link (5) and the oil splash prevention frame (3) is supported as shown by the solid lines in FIGS. 5 and 6. ) Will be drooping.
In other words, the sheath tube (11) is placed in parallel with the bracket (25), and the permanent magnet (1) and the reed switch (41) come close to each other as shown in FIG. , The reed switch (41) is closed. At the same time, since the lower end of the sheath pipe (11) is put into the oil tank (2), the heat sensitive part (32) is in a detection state.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a sectional view thereof,
FIG. 3 is an explanatory view of main parts, FIG. 4 is an electric circuit diagram, FIG.
FIG. 6 is an explanatory view of the second embodiment, and FIG. 7 is an explanatory view of a conventional example. In the figure, (1) ... permanent magnet, (10) ... apparatus body (11) ... sheath tube, (2) …… Oil tank (21) …… Support plate (3) …… Oil splash prevention frame (32) …… Heat sensitive part (4) …… Safety switch (41) …… Reed switch

Claims (3)

[Scope of utility model registration request] 1. An oil tank (2) is housed in a device body (10),
An oil splash prevention frame (3) is arranged above (2), and the heat sensitive part (32) of the oil temperature detecting tool is housed in this oil tank, and the oil tank of the heat sensitive part (32)
It has a safety switch (4) that becomes conductive when the position and posture with respect to (2) are properly set, and controls the heating device by the output of the oil temperature detection tool to maintain the oil temperature at the set temperature. In the fryer, the oil splash prevention frame (3) is rotatably attached to the upper surface of the device body (10), and the safety switch (4) is used as the reed switch (41). A sheath pipe (11) placed in a throwing state is provided in (2), the throwing position of the sheath pipe (11) is set near the side wall of the oil tank (2), and the sheath pipe (11) is provided with the reed switch ( 41) and the heat sensitive part (32) are housed, and the permanent magnet (1) is provided at a position close to the reed switch (41) in the sheath pipe (11) in the closed state of the oil splash prevention frame (3). Arranged flyer. 2. A sheath pipe (11) is detachably hung from a support plate (21) provided at the upper end of the oil tank (2), and a reed switch (41) in the sheath pipe (11) is splashed with oil. The fryer according to claim 1, which corresponds to the permanent magnet (1) provided on the inner surface of the prevention frame (3). 3. The fryer according to claim 1, wherein the sheath tube (11) is hung from the back surface of the oil splash prevention frame (3).