JP3277920B2 - Electric water heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric water heater for heating and keeping a liquid contained in a container, and leading the liquid to the outside of a main body.

[0002]

2. Description of the Related Art Conventionally, this type of electric water heater is shown in FIG.
It was as shown in Hereinafter, the structure of the conventional electric kettle will be described in detail. In FIG. 10, reference numeral 101 denotes a body constituting an outer shell, which contains a container 103 containing a liquid 102. Reference numeral 104 denotes a spout placed on the upper portion of the body 101, and the container 103 is placed on the central opening. 10
5 is a heating element for heating and keeping the temperature of the liquid 102,
It is fixed to the bottom part. 106 is a lid 200 that covers the upper opening for heating the container 103, and the lid 200 is a spout 104.
The hinge 104 is detachably engaged with the front by a lock lever 221 and is further provided behind the spout 104.
It is made rotatable by a. Also, the lid 200
A lock knob 224 that releases the engagement between the lock lever 221 and the spout 104 and a lock spring 223 that normally urges the lock lever 221 to the engagement state with the spout 104 are mounted on the, and further mounted thereon. An operation opening 223 required for operating the lock knob 224 is provided.

The operation of the above configuration will be described. When the lid 200 is opened, for example, when a liquid is put into a container, the lid 200 is placed on the lid 200 by an external operation, and the lock knob 224 is pushed against the surface of the lock knob 224 or the operation opening 223 is pulled from behind. The lock lever 221 engaged with the spout 104 is rotated to release the lid 200.
Is rotated about a hinge portion 104a provided behind the spout 104.

[0004]

However, in the above-mentioned conventional construction, the lock spring usually has to increase the load in order to securely engage the lock lever and the spout when the lid is closed. To do this, push the lock knob against the lock knob surface to open the lid,
Alternatively, there is a problem in that the load when the operation opening is pulled from behind is increased and the operability is not good. Therefore, it is difficult to increase the load of the lock spring and improve the operability of the lock knob.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide an electric water heater capable of increasing the load of a lock spring and improving the operability of a lock knob.

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, one of the present invention is to provide a body constituting an outer shell, a spout placed on an upper part of the body, and a liquid contained in the body. A bottom tubular container, a heating element for heating the liquid in the container, and a lid covering an upper opening of the container, wherein the lid is detachably engaged by a lock lever, and a hinge is provided. And the cover has a lock knob for releasing the engagement between the lock lever and the spout, and a lock spring for urging the lock lever,
A play is provided on the disengagement side in the rotation direction of the lock lever and the lock knob, and the lock lever starts sliding when the lock knob is rotated by a predetermined amount. As a result, the operability in the initial stage of the rotation of the lock knob is good, and when the lock knob rotates by a fixed amount and the lock lever starts sliding, there is a momentum of the rotational movement, and furthermore, the lock knob is raised to the opening for operation. Reliable access and improved operability.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a body having an outer shell, a spout placed on an upper part of the body, and a bottomed cylindrical shape for storing a liquid inside the body. A container, a heating element for heating the liquid in the container, and a lid covering an upper opening of the container, wherein the lid is detachably engaged by a lock lever, and is rotated by a hinge portion. The lid has a lock knob for releasing the engagement between the lock lever and the spout, and a lock spring for urging the lock lever. The rotation of the lock lever and the lock knob A play is provided on the disengagement side in the direction, and the lock lever starts sliding when the lock knob rotates by a predetermined amount. As a result, the operability in the initial stage of the rotation of the lock knob is good, and when the lock knob rotates by a fixed amount and the lock lever starts sliding, there is a momentum of the rotational movement, and furthermore, the lock knob is raised to the opening for operation. It has the effect that the hand can be reliably reached and operability is improved.

According to a second aspect of the present invention, there is provided a body forming an outer shell, a spout placed on an upper part of the body, a bottomed cylindrical container housed inside the body, and a liquid in the container. It has a heating element to be heated and a lid covering the upper opening of the container, wherein the lid is detachably engaged with a spout by a lock lever in front of the spout, and is provided behind the spout. While being rotatable by a hinge portion, the lid has a lock knob for releasing the engagement between the lock lever and the spout, and a lock spring for urging the lock lever ,
Engage in the rotation direction of the lock lever and the lock knob
An electric water heater having a configuration in which play is provided on a release side, a lever spring for adjusting an operating force at the time of starting rotation of the lock knob is mounted on the lock lever, and the center of the lock spring and the lever spring are shifted. As a result, the operability at the initial stage of the rotation of the lock knob is good, and the operating force at that time can be adjusted by the lever spring. When the lock knob rotates by a fixed amount and the lock lever starts sliding, the momentum of the rotational movement is increased. In addition, there is an effect that the operation opening is surely improved at the place where the lock knob rises, the operability is improved, and furthermore, the center of the lock spring and the lever spring is shifted, so that the operation can be made compact.

According to a third aspect of the present invention, when the lock lever is provided with a stopper for only turning the lock knob and not releasing the engagement with the spout, the momentum of the rotational movement becomes excessive. For example, the lock knob does not operate unnecessarily, thereby improving safety.

According to a fourth aspect of the present invention, when the rotation center axis position of the lock knob is moved by an external operation, the lock knob is separated from the stopper constituted by the lock lever and starts to rotate again, so that the lock lever is rotated. The structure that releases the engagement between the lock knob and the spout improves the operability of the lock knob at the beginning of rotation, and improves safety because the lock knob does not operate unnecessarily in cases such as excessive rotational movement It has the effect of doing.

According to a fifth aspect of the present invention, the load of the lever spring in the mounted state is lighter than that of the lock spring, so that the operability at the initial stage of the rotation of the lock knob is good and the operating force at that time is controlled by the lever spring. When the lock knob is turned by a certain amount and the lock lever starts sliding, there is momentum of rotational movement, and when the lock knob rises, the operation opening can be securely reached and the operability can be improved. In order to improve, the load of the lock spring is increased and the lock lever and the spout can be reliably engaged when the lid is closed.

According to a sixth aspect of the present invention, the lever spring is compressed to a maximum immediately before the lock lever operates, and the lever spring is reversed as the lock lever operates in the direction of releasing the engagement with the spout. By providing in the position to extend to
This has the effect of reducing the amount of compression and extension of the lever spring during the operation of the lock knob, and eliminating the possibility of the lock knob operating failure or the lock spring falling off due to the lever spring.

[0013]

FIG. 1 to FIG. 9 show an embodiment of the present invention.
This will be described with reference to FIG. The characteristic configuration of the present embodiment relates to a mechanism for opening and closing the lid.

(Embodiment 1) In FIGS. 1 and 2, reference numeral 11 denotes a body constituting an outer shell.
A spout 12 placed on the upper part of the body 11, a bottomed cylindrical container 14 for storing the liquid 13 inside the body 11, and a container 14
A heating element 15 for heating the liquid 13 therein, and a lid 20 for covering the upper opening of the container 14. The lid 20 is detachably engaged with the spout 12 by a front lock lever 21,
Further, it is rotatable by a hinge portion 12a provided behind the spout 12. Further, a lock knob 24 for releasing the engagement between the lock lever 21 and the spout is provided on the lid 20.
A lock spring 22 for urging the lock lever 21, a play is provided on the disengagement side in the rotation direction of the lock lever 21 and the lock knob 24, and the lock lever 21 slides when the lock knob 24 rotates a predetermined amount. The movement is started, and the predetermined amount is the amount by which the lock knob end surface 24e moves in the range of 5 to 30 mm.

The operation of the above configuration will be described. The lock knob is rotated by a play around the lock knob shaft portion 24a by an external operation, and further rotated to slide the lock lever 21 so that the lock lever 21 slides a certain distance. Release the engagement.

As a result, the operability at the initial stage of the rotation of the lock knob 24 is good, and the lock knob 24 is rotated by a predetermined amount so that the lock knob end surface 24e has a lock lever 21 in the range of 5 to 30 mm.
Starts sliding, the momentum of the rotational movement is present, and when the lock knob end surface 24e rises by 5 to 30 mm, the hand can be securely entered into the operation opening 23 to improve the operability.

(Embodiment 2) In FIGS. 5 to 6, a body 11 constituting an outer shell, a spout 12 mounted on the upper part of the body 11, and a bottomed cylindrical container for storing a liquid 13 inside the body 11 14, a heating element 15 that heats the liquid 13 in the container 14, and a lid 20 that covers an opening on the upper surface of the container 14. A lock knob 2 for releasing engagement between a lock lever 21 and the spout 12 is provided on the lid 20.
4, a lock spring 22 for urging the lock lever 21,
The lock lever 21 is provided with a lever spring 28 for reducing the operation force at the time of starting the rotation of the lock knob 24, and the centers of the lock spring 22 and the lever spring 28 are shifted.

The operation of the above configuration will be described. There is play before the lock knob 24 rotates about the lock knob shaft portion 24a by an external operation and the lock lever 21 starts sliding toward the spout 12 disengagement side, during which time the lock knob 24 operates the lever spring 28. Compress.

As a result, the operability of the lock knob 24 at the beginning of rotation is good, and the operating force at that time can be adjusted by the lever spring 28. When the lock knob 24 rotates by a certain amount and the lock lever 21 starts sliding, When the lock knob 24 rises due to the momentum of the rotational movement, the operation opening 23 is securely reached and the operability is improved, and the center of the lock spring 22 and the lever spring 28 is displaced. Can be configured.

(Embodiment 3) In FIGS. 7 and 8, the lock lever 21 is provided with a stopper 21a for not rotating the lock knob 24 but releasing the engagement with the spout 12. The same effect can be obtained even if the stopper 21a is formed on the lid cover 26 or the lid 27.

The operation of the above configuration will be described. An external operation causes the lock knob 24 to rotate about the lock knob shaft portion 24a, the stopper 21a provided on the lock lever 21 to stop the rotation of the lock knob 24, and the lock knob 24 to rotate further from the outside. It becomes possible by operation other than the rotation direction of.

As a result, the lock knob 24 does not operate unnecessarily in the case where the momentum of the rotational movement is excessive, and the safety is improved.

(Embodiment 4) In FIG. 9, the rotation center axis position 24 of the lock knob 24 is shown.
is moved to 24c by an external operation, the lock knob 24 separates from the stopper 21a formed on the lock lever 21 and starts rotating again, and
And the spout 12 are disengaged.

Therefore, the operability at the initial stage of the rotation of the lock knob 24 is good, and the lock knob 24 does not operate unnecessarily in the case where the rotational movement is too vigorous, so that the safety is improved.
The same effect can be obtained even if the stopper 21a is formed on the lid cover 26 or the lid 27.

(Embodiment 5) In FIGS. 7 and 8, the load of the lever spring 28 in the mounted state is lighter than that of the lock spring 22, so that the operability in the initial rotation of the lock knob 24 is good and furthermore, The operating force can be adjusted by the lever spring 28, and when the lock knob rotates by a fixed amount 24 and the lock lever 21 starts sliding, there is a momentum of the rotational movement and the lock knob 24 further rises. .

Accordingly, since the operation opening 23 is securely reached by the hand and the operability is improved, the load of the lock spring 22 is increased and the lock lever 21 is securely engaged with the spout when the lid 20 is closed. be able to.

(Embodiment 6) In FIGS. 7 and 8, reference numeral 24 b denotes an operating point for operating the lock lever, and the lever spring 28 is compressed to the maximum when the rotation of the lock knob 24 is stopped by the stopper 21 a of the lock lever 22. And the rotation center axis 24 of the lock knob 24
The position a is moved by an external operation, and the lock knob 2
4 moves away from the stopper 21a formed on the lock lever 21 and starts to rotate again, but the lever spring 28 moves the end face compressed by the lock knob to a position closer to the rotation center 24a than the operating point which is the position where the lever is extended. After being placed, the lock knob 24 has a structure in which the lock lever 21 is separated from the stopper 21 a formed on the lock lever 21, starts rotating again, and releases the engagement between the lock lever 21 and the spout 12.

Accordingly, when the lock knob 24 is operated, the amount of compression and extension of the lever spring 28 is reduced, and the operation of the lock knob 24 due to the lever spring 28 and the lever spring 2 are prevented.
8 has the effect of eliminating the possibility of falling off.

[0029]

As is apparent from the above embodiment, according to the first aspect of the present invention, the operability at the initial stage of the rotation of the lock knob is good, the lock knob has rotated a fixed amount, and the lock lever has started sliding. At the time, there is a momentum of the rotational movement, and the operation opening is surely inserted into the operation opening where the lock knob is further raised, and the operability is improved. The operability is good and the operating force at that time can be adjusted with the lever spring.When the lock knob rotates by a certain amount and the lock lever starts sliding, there is momentum of rotational movement and the lock knob rises further. The operation opening is reliably inserted to improve the operability, and the center of the lock spring and the lever spring are shifted from each other, so that the structure can be made compact.

According to the third aspect of the present invention, the lock lever is provided with a stopper for only turning the lock knob so as not to release the engagement with the spout. The lock knob does not operate unnecessarily in such a case, and the safety is improved.

According to the fourth aspect of the present invention, the position of the rotation center axis of the lock knob is moved by an external operation, whereby the lock knob is separated from the stopper formed on the lock lever and starts to rotate again. The lock lever has a structure that disengages the spout from the spout, so the operability at the beginning of the rotation of the lock knob is good, and the lock knob does not operate unnecessarily in cases such as when the rotational movement is too strong. Has the effect of improving the properties.

According to the fifth aspect of the invention, the load of the lever spring in the mounted state is lighter than that of the lock spring, so that the operability at the initial stage of turning the lock knob is good and the operating force at that time is reduced by the lever. It can be adjusted with a spring.When the lock knob rotates by a certain amount and the lock lever starts to slide, there is momentum of rotational movement, and the operation opening is securely reached when the lock knob rises and operability is improved. Therefore, when the load of the lock spring is increased and the lid is closed, the lock lever and the spout can be reliably engaged.

According to the present invention, the lever spring is compressed to a maximum immediately before the lock lever operates, and the lever spring is moved in the direction of releasing the engagement with the spout. By providing the spring at the position where it is extended in the opposite direction, the amount of compression and extension of the lever spring during the operation of the lock knob is reduced, and there is no possibility that the operation of the lock knob may be disturbed by the lever spring or the lock spring may fall off.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of an electric water heater showing a first embodiment of the present invention.

FIG. 2 is a detailed sectional view of a main part of the electric water heater shown in the first embodiment of the present invention.

FIG. 3 is a schematic sectional view of an electric water heater according to a second embodiment of the present invention.

FIG. 4 is a detailed sectional view of a main part of an electric water heater shown in a second embodiment of the present invention.

FIG. 5 is a schematic sectional view of an electric water heater according to a third embodiment of the present invention.

FIG. 6 is a detailed sectional view of a main part of an electric water heater shown in fourth to sixth embodiments of the present invention.

FIG. 7 is a schematic cross-sectional view of an electric water heater showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Body 12 Spout 12a Hinge part 13 Liquid 14 Container 15 Heating element 20 Lid 21 Lock lever 21a Stopper 22 Lock spring 23 Operation opening 24 Lock knob 24a Lock knob shaft 24c Lock knob shaft after movement 24e Lock knob End face 24r Lock knob after movement 26 Lid cover 27 Lid 28 Lever spring

Claims (6)

(57) [Claims] 1. A body constituting an outer shell, a spout mounted on an upper portion of the body, a bottomed cylindrical container for storing a liquid inside the body, and a heating element for heating the liquid in the container. A lid that covers an upper opening of the container, the lid is removably engaged by a lock lever, and is rotatable by a hinge, and the lid is provided with a lock lever. A lock knob for releasing the engagement with the mouth, and a lock spring for urging the lock lever; providing play on the engagement release side in the rotation direction of the lock lever and the lock knob; An electric water heater in which the lock lever starts sliding when rotated by a predetermined amount. 2. A body constituting an outer shell, a spout mounted on an upper part of the body, a bottomed cylindrical container housed inside the body, a heating element for heating a liquid in the container, A lid that covers the upper opening of the container, wherein the lid is detachably engaged with the spout by a lock lever forward, and is rotatable by a hinge portion provided behind the spout. The lid has a lock knob for releasing the engagement between the lock lever and the spout, and a lock spring for urging the lock lever.
A play is provided on the disengagement side in the rotation direction of the lock knob, and a lever spring for adjusting the operating force at the start of rotation of the lock knob is mounted on the lock lever. An electric kettle with a misaligned configuration. 3. The electric water heater according to claim 1, wherein the lock lever is provided with a stopper for only turning the lock knob and not releasing the engagement with the spout. 4. When the rotation center axis position of the lock knob is moved by an external operation, the lock knob separates from the stopper formed on the lock lever and starts to rotate again to engage the lock lever with the spout. The electric water heater according to claim 1 or 2, wherein the electric water heater has a structure for canceling. 5. The electric water heater according to claim 2, wherein the load of the lever spring in the mounted state is lighter than that of the lock spring. 6. The lever spring is compressed to a maximum just before the lock lever operates, and the lever spring is provided at a position where the lever spring extends in the opposite direction as the lock lever operates in the direction of releasing the engagement with the spout. An electric kettle according to claim 2.