JPH044664Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is an inner lid structure of an electric pot, in particular, a lid structure that is attached to the inside of the lid body which is hinged to one peripheral edge of the pot body body. The present invention relates to the structure of an inner lid that opens and closes a liquid storage space.

(Prior art) In general, an electric heating pot heats and boils the water contained in the pot body, maintains the hot water at a predetermined temperature, and allows pouring without having to hold the pot by hand or tilt it. In this case, the lid body with a built-in air pump is hinged to the pot body, and the inner lid is integrally attached to the bottom of the lid body to protect it from heat, while the inner lid is used to store liquid in the pot body. A structure in which the space can be opened and closed has been proposed.

(Problem that the invention attempts to solve) However, with this type of electric heating pot,
Moisture that evaporates when heating or boiling water or while keeping it warm comes into contact with the surface of the inner lid facing the liquid storage space of the pot body, condenses, and forms small water droplets that adhere in large quantities. This condensed water will not fall unless it grows into extremely large droplets and will remain attached to the inner lid surface, so when the lid is opened, the condensed water that has adhered to the inner lid surface will flow down the inner lid surface and from the hinge. There was a problem with water flowing out of the pot.

Therefore, the technical problem of the present invention is to prevent water droplets adhering to the surface of the inner lid from flowing out of the pot along the hinge when the lid is opened.

(Means for Solving the Problems) In order to solve the above-mentioned technical problem, the present invention is installed inside a lid body that is hinged to one peripheral edge of the pot body body, and the liquid storage space of the pot body body is In the inner lid for closing the lid, when the lid body is closed, the lower surface facing the liquid storage space of the pot body body is inclined downward from the side opposite to the hinge side toward the hinge side, and at least the hinge on the inner and outer periphery is A convex part is provided on the side that protrudes downward toward the hinge side, and the hinge point of the lid body is set below the opening position of the middle container, so that when the lid body is opened, the convex part is approximately at the inner end of the opening of the middle container. This is so that they are in contact.

(Example) Hereinafter, the present invention will be specifically described with reference to the accompanying drawings.

In FIGS. 1 to 3 showing an embodiment of the electric air pot according to the present invention, 1 is a pot body;
2 is a lid body, 3 is a shoulder body, 4 is a bottom body, 5 is an inner container, and 6 is a metal inner lid, and the inner lid 6 is the inside of the lid body 2 that is hinged to the back side of the pot body 1 is integrally attached to.

The inner lid 6 according to the present invention has a flange portion 7 and a substantially cylindrical base portion 8, and a surface 9 facing the liquid storage space 5a of the pot body body 1 when the lid body 2 is closed.
is formed so as to be inclined downward from the front side A of the pot body 1 toward the hinge side B.

Further, the inner lid 6 has a convex portion 10 formed along the entire periphery of the inclined surface 9, that is, at the edge where the inclined surface 9 and the base surface 8a intersect. Note that this convex portion 10 closes the liquid storage space 5a when the lid body 2 is closed.
It may be formed at least at the lower end side of the inclined surface 9 facing , and it is not necessarily necessary to form it along the entire peripheral edge of the inclined surface 9 . The inclined surface 9 has a concave portion 9a parallel to the flange portion 7 in a portion closer to the hinge side.
The recess 9a has an opening 11 formed therein.
A cylindrical member 12 is integrally joined to this opening 11 at a portion 12a by caulking, welding, or the like. Furthermore, fine irregularities are formed on the inclined surface 9 and the base surface 8a by sandblasting or the like.

The inner lid 6 is attached to the lid main body 2 by fitting the cylindrical member 12 of the inner lid 6 into the lower opening 14a of the ventilation tube 14 formed integrally with the bottom member 13 via the seal rubber 15. This is done by
An annular packing 16 attached to the flange portion 7 of the inner lid 6 is pressed against the upper end surface of the inner container 5 to seal the inside of the inner container 5, that is, the liquid storage space 5a. A slit 14b constituting an air supply port is formed in the upper end of the ventilation cylinder 14 in the vertical direction.

A water stop valve 17 is removably attached to the cylindrical member 12 in order to prevent a large amount of hot water from flowing out through the vent pipe 14 when the member falls over. This water stop valve 17 is composed of a bottomed cylindrical metal fitting 18 and a spherical valve body 19 displaceably housed inside the metal fitting 18.
A plurality of slits 18 are formed on the open end side of the cylindrical metal fitting 18.
a is formed in the axial direction, while a groove in the circumferential direction is formed inside the elastic piece 18b formed on the open end side by forming the slit, and a ring-shaped spring 20 is installed in the groove. Ring-shaped spring 20
By this action, the elastic piece 18b is urged outward, and the water stop valve 17 is attached to the inner lid 6.

A bellows pump 21 is disposed inside the lid body 2, and the bellows pump 21 has an air intake port 21a at the center of the upper part and an air supply port 21b at the center of the lower part.
The bellows pump body 21c is biased in the direction of expansion by a return spring 22 disposed inside the bellows pump body 21c. Seal rubber 23
is hermetically fitted to the outer periphery of the base of the vent cylinder 14, thereby fixing the bellows pump 21 to the bottom member 13. A downwardly protruding cylindrical guide 2a is formed at the top of the lid body 2, and the cylindrical guide 2a
A pusher body 24 is arranged to be movable up and down. This pushing body 24 has a ventilation cylinder 14 of the bottom member 13 in its center.
A cylindrical projection 25 is formed on the free end of the cylindrical projection 25, and a flange 25a provided on the outer periphery of the lower end of the projection 25 is formed.
A seal ring 26 is installed to seal the intake port 21a of the bellows pump 21 during pouring, and is urged upward by a spring 27 disposed between the top of the ventilation cylinder 14 of the lid body 2 and the pusher body 24. has been done.

The pot body 1 consists of an exterior body 1a, a shoulder body 3, and a middle container 5. A resin-made annular shoulder body 3 is fixed to the upper end of the exterior body 1a.
The metal inner container 5 is held through a gasket 28 disposed inside the upper end of the container. This medium container 5
In addition to a band heater 30 attached to the outer periphery of the lower part, a thermal switch 31 is attached to the bottom, and a thermostat 32 is attached to the side wall. be. A pouring unit 34 is incorporated in a portion of the shoulder body 3 that protrudes toward the front side A of the pot body body 1, and includes a water pouring pipe 35 and a safety valve 36, and is connected to a water pumping pipe 37 communicating with the bottom of the medium container 5. There is.

The shoulder body 3 has a hinge pin support part 3 on the back side B.
a is integrally provided, and the lid main body 2 is rotatably mounted via a hinge pin 38 fitted into the hinge pin support portion 3a. The lid main body 2 is provided with a hook mechanism (not shown) on the front side A, and can be opened by operating this hook mechanism.

Further, a handle 39 is rotatably attached to the shoulder body 3 by a hinge mechanism. 40 is a water level tube, 41 is a water level display ball, 42 is a light emitting diode, neon tube or other light emitting element, 43 is a light emitting element mounting member, 44 is a transparent front panel, and 45 is a removable plug.

When using an electric air pot employing the inner lid according to the embodiment, when water is put into the liquid storage space 5a and heated and boiled, water vapor is generated and comes into contact with the inclined surface 9 and the base surface 8a of the inner lid 6. However, since fine irregularities are formed on the inclined surface 9 and the base surface 8a, the water does not form into large droplets but instead adheres in the form of a film. Furthermore, since both the inclined surface 9 and the base surface 8a are inclined, condensed water travels along the inclined surface 9 and the base surface 8a and collects on the hinge side of the convex portion 10, and becomes large water droplets inside the liquid storage space 5a. to fall. Such effects can be obtained in the same way during heat retention.

On the other hand, when opening the lid, when the lid main body 2 is rotated, the angle of inclination of the slope 9 increases, so that the condensed water adhering to the slope 9 in a film form is transferred to the hinge side in the process of opening the lid main body 2. The water collects on the convex portion 10 and falls as water droplets. After most of the condensed water has flowed down, the condensed water that is attached to the protrusion 10 in the form of water droplets that are too large to fall is removed from the protrusion 10 on the hinge side, as shown in FIG. rotates with a slight gap or in contact with the hinge side end of the middle container 5, so it comes into contact with the hinge side end of the middle container 5, and the liquid is stored along the inner wall of the middle container 5. Space 5a
Flows down inside. Therefore, when the lid body 2 is opened, condensed water does not flow out of the pot via the hinge mechanism.

By the way, as the inner lid of an electric air pot with a capacity of 1.8 and an inner diameter of 135 mm, the inner lid with a flat surface facing the liquid storage space 5a (comparative example) of the present invention shown in Figs. 1 to 3 was used. The inner lid according to the first embodiment, and the inner lid according to the second embodiment of the present invention, which has the structure shown in FIGS. 1 to 3 and has no fine irregularities formed on the surface facing the liquid storage space 5a. into each medium container using
After filling only half the amount of hot water of 95° C. or higher and leaving it for one hour, the amount of condensed water adhering to the surface of the inner lid facing the liquid storage space 5a was examined. As a result, in the comparative example, the condensed water formed into large droplets and adhered to the entire surface of the inner lid, and when the lid was opened, a large amount of water flowed down the hinge, and the amount of adhesion was 9.4ml.
In contrast, with the inner lid according to the first embodiment of the present invention, the entire surface is wet and no water droplets are observed, and even when the lid body is opened, condensed water flows through the hinge to the outside. It did not run down, and the amount of condensed water that adhered was 3.5 ml. Further, in the inner lid according to the second embodiment of the present invention, although small water droplets are scattered on the surface facing the liquid storage space 5a, when the lid main body is opened, the condensed water does not flow down to the hinge side. The amount of adhesion was about 5 ml.

(Effects of the invention) As is clear from the above description, according to the invention, the lower surface of the inner lid facing the liquid storage space 5a is inclined downward from the side opposite to the hinge side toward the hinge side, and Since a convex portion is provided on the outer periphery of the inner surface of the inner lid at least on the hinge side, in other words, the inner surface of the inner lid is inclined toward the hinge side, so that the condensed water that adheres to the convex portion when the lid is closed flows toward the hinge side. The water flows and falls as large droplets, and there is little condensation on convex parts.

Moreover, as described above, the convex portion protrudes at least toward the hinge side of the inner lid whose hinge side is sloped low, and the hinge point between the lid body and the shoulder body is
Below the opening position of the middle container, the convex portion almost touches the inner end of the middle container opening when the lid body is opened, so when opening the lid, the opening angle (angle of inclination) is substantially lower than that of the lid body. Before the lid body is opened wide, condensed water concentrates on the protrusion on the hinge side and falls into the liquid storage space. Further, the hinge-side convex portion remains inside the inner container until a large amount of condensed water flows out during the opening of the lid body.

Therefore, when the lid body is opened, the condensed water adhering to the peripheral edge hardly flows out of the pot.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway sectional view of an electric air pot equipped with an inner lid according to the present invention, Fig. 2 is a partially cutaway bottom view of the inner cover according to the present invention, and Fig. 3 is a partially cutaway sectional view of an electric air pot equipped with an inner lid according to the present invention. FIG. 3 is a partial cross-sectional view showing the state of the air pot when the lid is opened. DESCRIPTION OF SYMBOLS 1... Pot body body, 2... Lid body, 3... Shoulder body, 3a... Hinge pin support part, 4... Bottom body, 5... Middle container, 5a... Liquid storage space, 6...
...Inner lid, 7...Flange part, 8...Base, 9...
Surface facing the liquid storage space (slanted surface), 8a...
Base surface, 10...Convex portion, 13...Bottom member, 38
...Hinge pin, A...Front side of pot body,
B...The back side of the pot body.

Claims (1)

[Scope of utility model registration request] An inner lid 6 is attached to the inside of the lid body 2 which is hinged to one peripheral edge of the pot body body 1, and closes the liquid storage space 5a of the pot body body 1. When the lid body 2 is closed, the pot body body The lower surface 9 facing the liquid storage space 5a of No. 1 is inclined downward from the side opposite to the hinge side toward the hinge side, and the convex portion protrudes downward toward the hinge side at least on the inner and outer periphery side. 10, and
The inside of the electric pot is characterized in that the hinge point of the lid body 2 is located below the opening position of the inner container, so that when the lid body 2 is opened, the convex portion is in substantially contact with the inner end of the opening of the inner container. Lid structure.