JPH0582204B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an electric kettle that heats water stored in a tank with a heater to boil it into hot water.

(Prior art) In this type of electric water kettle, a cylindrical tank with a bottom is housed in a case, and a heater is attached to the outer circumference of this tank, and the water in the tank is heated by this heater to turn it into hot water. Boiled. A lid frame is provided at the upper end of the case, and a lid body for opening and closing the opening of the tank is fitted into this lid frame. A lock body whose portion protrudes outside the lid body and can be operated externally is provided, and an engagement recess corresponding to the lock body is provided in the lid frame.

Then, when the lid is pushed into the lid frame from the open state, the lock body temporarily moves inward of the lid against the biasing force of the spring, and this lock When the body faces the engagement recess of the lid frame, the tip end enters and engages the engagement recess due to the biasing force of the spring, and this engagement locks the lid. Also, when opening the lid,
The lock body is moved inward of the lid body against the spring with the fingertips to disengage the lock body from the engagement recess, thereby unlocking the lid body.

(Problem to be Solved by the Invention) However, in such a conventional configuration, it is difficult to determine whether the lock body and the engagement recess are properly engaged.
The only way to make a judgment is to rely on the clicking sound that occurs when the pot is engaged, making it difficult to make an objective judgment and lacking in reliability. There is a risk of unexpected burns due to hot water leaking from the tank.

This invention was made with attention to these points, and its purpose is to objectively and accurately judge the suitability of engagement between the lock body and the engagement recess to prevent inadvertent leakage of hot water. To provide an electric kettle pot with excellent safety that can reliably prevent accidents.

[Structure of the invention] (Means for solving the problem) In order to solve the above object, this invention has the following features:
A lid frame is provided at the upper end of the case housing the water boiling tank, and a lid for opening and closing the tank is fitted into the lid frame, and is elastically attached in one direction by a spring inside the lid. a lock body that can be operated externally by a force, and an engagement recess corresponding to the lock body is provided in the lid frame;
The lid body is locked by the lock body engaging with the engagement recessed portion by the biasing force of the spring;
In the device in which the lock is released by moving the lock body against the spring, the lock body is integrally provided with a display portion having a lock display means, and the lid body is provided with a display portion opposite to the display portion. The lock display means of the display section is arranged to face and align with the display window when the lock body and the engagement recess are engaged with each other.

(Function) When the lid is closed, unless the lock body is properly engaged with the engagement recess, the lock indicator means of the lock body will not be properly aligned with the display window of the lid body, and therefore the lock body and It is possible to objectively and accurately judge whether or not the engagement with the engagement recess, that is, the locking of the lid body is appropriate.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In the figure, 1 is a case, and a bottomed cylindrical tank 2 is housed in the case 1. A boiling heater 3 and a heat-retaining heater 4 are integrally attached to the outer periphery of the tank 2. The water stored in the tank is heated by a boiling heater 3 until it boils, and then kept at a high temperature of about 96°C by a heat-retaining heater 4. A pouring pipe 7 is connected to the bottom of the tank 2, and the other end of the pouring pipe 7 is led out to the outside of the case 1 as a spout 7a.
Further, an electromagnetic pump 8 is provided in the middle of the pouring pipe 7, and the hot water in the tank 2 can be appropriately poured out from the spout 7a via the electromagnetic pump 8.

An annular lid frame 5 is attached to the upper end of the case 1, and a holding collar 6 is integrally formed at the lower edge of the lid frame 5, and the tank 2 is supported via the holding collar 6. A lid body 9 fits inside the lid frame 5, and this lid body 9 is rotatably attached to the lid frame 5 via a hinge (not shown), for example, at one end edge thereof. This lid body 9 integrally has a sealing plug 10 on the lower end surface, and this sealing plug 10 abuts against the opening at the upper end of the tank 2 via a packing 11, thereby closing the opening at the upper end of the tank 2. Liquid-tightly sealed.

A pair of lock bodies 13, 13 are provided inside the lid body 9 so as to be slidable in the horizontal direction, and one end portion of these lock bodies 13, 13 forms an engaging pawl 14, 14.
Further, knob pieces 15, 15 are integrally formed at the other end, and these knob pieces 15, 15 are arranged to face each other, and a spring 16 is interposed between them, and the spring 16 causes the engagement. The lock bodies 13, 13 are elastically biased in opposite directions so that the claws 14, 14 protrude from the circumferential surface of the lid body 9. Engagement recesses 17, 1 corresponding to the lock bodies 13, 13 are formed on the inner peripheral surface of the lid frame 5.
7 are formed, and the engaging claws 14, 14 of the lock bodies 13, 13 enter and engage in these engaging recesses 17, 17, and by this engagement, the lid body 9 is locked with respect to the lid frame 5. This lock keeps the tank 2 sealed. In addition, each engaging claw 14, 1
The lower surface of 4 is formed in a tapered shape that slopes obliquely upward toward its tip side.

A recessed step 20 is formed in the center of the upper wall of the lid 9, and the knobs 15, 15 of the lock members 13, 13 project into the recessed step 20 so as to be movable in the horizontal direction. In addition, plate-shaped display sections 22, 22 are integrally provided in the middle part of each lock body 13, 13 via support legs 21, 21, and these display sections 22, 22 are arranged horizontally so that the cover body 9 It faces the inner surface of the top wall. As shown in FIG. 2, the upper surfaces of these display sections 22, 22 are evenly divided into two by coloring, for example, green a as a lock display means and yellow b as a non-lock display means. It is designed to do so. and lid body 9
Display windows 23, 23 corresponding to the respective display sections 22, 22 are formed on the upper wall, and when the lid 9 is in the locked state, the green a colored portions of the display sections 22, 22 face these display windows 23, 23. When the lock bodies 13, 13 are moved toward the center of the lid body 9 against the spring 16 from this state, the yellow b colored portions of the display parts 22, 22 are displayed on the display window. 23, 23 are designed to match oppositely.

In addition, a steam escape passage 25 is formed in the lid body 9 to release the steam to the outside when the water in the tank 2 boils.
A check valve 26 is provided in the steam release path 25 to prevent hot water from flowing out when the tank 2 falls over.

Next, we will discuss the effect.

FIG. 1 shows a state in which the opening of the tank 2 is sealed with the lid 9. When opening the opening of the tank 2 from this state, first pinch both the knobs 15, 15 with your hands and lock the opening. 13, 13 as spring 1
6 to the center of the lid 9. With this operation, the engaging claws 14, 14 of the lock bodies 13, 13 are disengaged from the engaging recess 17, thereby releasing the lock of the lid body 9, and at this time, the yellow b colored portions of the display parts 22, 22 are removed. appears on the display windows 23, 23 to indicate the release, and therefore, in this state, the lid 9 is pulled upward to open the opening of the tank 2 and, for example, water is replenished into the tank 2.

On the other hand, when closing the lid body 9, the engaging claws 14, 1
The lid 9 is pushed into the lid frame 5 while the lid 9 is kept protruding from the circumferential surface of the lid 9. By this operation, the lock bodies 13, 13 are pressed by the inner peripheral surface of the lid frame 5 and temporarily move toward the center of the lid 9 against the spring 16. And the engaging claws 14, 14
When the lock body 1 faces the engagement recesses 17, 17,
3 and 13 move toward the circumferential surface of the lid body 9 due to the biasing force of the spring 16, and the locking claws 14 and 14 engage the engagement recess 1.
7 and 17, thereby locking the lid 9 and maintaining the sealed state of the tank 2. At this time, the green a colored portions of the display portions 22, 22 appear in alignment with the display windows 23, 23, indicating that the engagement of the engaging claws 14, 14 has been properly achieved.

Here, for example, if the engaging claws 14, 14 are caught in the middle of the engaging recesses 17, 17, the engaging claws 14, 14,
14 is improperly engaged, as shown in FIG.
The boundary between the colored parts of Green A and Yellow B of No. 22 appears, and it is possible to objectively and accurately know visually that the engagement is incorrect, and therefore the engagement remains incorrect. I'm never left alone.

In the above embodiment, the hot water in the tank is poured out via an electromagnetic pump, but it is also possible to use a manual or electric air pump to pump air into the upper layer of the tank. There is no problem even if the tank is of a type in which the surface of the hot water is pressurized and the hot water in the tank is poured out using this pressurized pressure.

[Effects of the Invention] As explained above, according to the present invention, it is possible to objectively and accurately determine the suitability of the engagement between the lock body and the engagement recess, that is, the locking of the lid body, based on the display appearing in the display window of the lid body. This has the advantage that the pot can be used safely, avoiding the danger of the hot water in the tank leaking out if the pot falls over due to the lid being left improperly locked. be.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a sectional view of the entire electric kettle, FIG. 2 is a plan view of the display section, and FIG. 3 is a plan view for explaining the operation. DESCRIPTION OF SYMBOLS 1...Case, 2...Tank, 5...Window frame, 9...Lid body, 13...Lock body, 16...Spring, 22...Display section, 23...Display window.

Claims (1)

[Claims] 1 A lid frame is provided at the upper end of a case that houses a water boiling tank, and a lid for opening and closing the opening of the tank fits into this lid frame, and a spring inside the lid allows elasticity in one direction. A lock body which is biased by the user and can be operated externally is provided, an engagement recess corresponding to the lock body is provided in the lid frame, and the lock body is engaged with the engagement recess by the biasing force of the spring. The lid body is locked by the locking mechanism, and the locking body is unlocked by moving the locking body against the spring. The lid body is provided with a display window which allows the display part to face the display window, and the lock display means of the display part is made to face and match the display window when the lock body and the engagement recess are engaged with each other. Features an electric kettle.