JP2009291418A - Electric kettle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric kettle in which steam in a steam passage surely enters a sensor chamber, makes contact with and updates a sensor, and is smoothly evaporated without generation of a large amount of dew condensation. <P>SOLUTION: The electric kettle includes: a device body 4 for boiling water by a heater 1, a lid body 5 of the device body 4; a handle 9 of the device body 4; and the sensor chamber 30 provided at the upper part of the handle 9, introducing the steam generated in the device body 4, and bringing the steam into contact with a steam sensor 26. The sensor chamber 30 is bifurcated from the intermediate part of the steam passage 31 for introducing the steam from the device body 4 into the upper part of the handle 9 and exhausting the steam, so that the steam entering from the steam passage is brought into contact with the steam sensor 26, and the bifurcated point between the steam passage 31 and the sensor chamber 30 and on the upstream side of the steam passage 31 is provided with a partition wall 32 extending on the downstream side of the steam passage 31 and restricting an entrance area of the steam from the steam passage 31 to the sensor chamber 30 to solve the problem. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to an electric kettle, and more specifically, a steam sensor that introduces steam generated by a heater, a cover body of the container, a handle provided on the outer periphery of the container, and steam generated in the container. The present invention relates to a handy type electric kettle including a sensor chamber at an upper part of a handle to be brought into contact with the handle.

Kettles have long been used as so-called kettles that simply boil hot water on a stove, but there is an electric kettle that can be easily heated in a few minutes by connecting to a power source and can be easily handled by a handy type. It has become widespread (for example, see Patent Document 1). Patent Document 1 adopts a heating method using a heater, but priority is given to simplicity, and the kettle container is exposed to the outside, and the lid body is also safe from the outflow of content liquid and the release of steam when it falls. An electric kettle having a simple structure having no structure is disclosed. Also, in connection with the simple structure, in order to detect boiling, the steam generated during boiling is introduced into the upper connection part of the handle provided in the container and brought into contact with the steam sensor, and the steam introduced into the handle Is dried by heat on the container side to diverge.
Japanese Patent Laid-Open No. 10-157

  However, the sensor disclosed in Patent Document 1 directly protrudes from the upstream side expansion portion of the steam passage for introducing and drying and discharging steam from the container side so as to come into contact with the steam introduced into the steam introduction path. The steam introduced into the expansion part is swirled there and joined to the sensor side by joining with the hot air on the container side coming up to the sensor part through the steam passage leading to the bottom part on the container side. Therefore, it is difficult to accurately detect boiling with steam. For this reason, there is a problem that detection of boiling is delayed or accelerated with respect to actual boiling.

  Therefore, the present applicant branches the sensor chamber from the middle of the steam passage for introducing and discharging steam into the upper part of the handle from the container side so that the steam flowing from the steam passage into the sensor chamber comes into contact with the sensor. In addition, an electric kettle that can easily detect boiling from the steam temperature, which is difficult for hot air on the body side to reach the sensor chamber, has been proposed.

  However, in the previous proposal, although the sensor chamber branched from the steam passage is a narrow path, the steam in the steam passage fills up the sensor chamber by simply opening straight to the steam passage. Entering without a refuge, competing with the inflow of excessive condensed water and the subsequent steam flowing in, the delay in detection of boiling due to poor renewal of steam, poor vaporization divergence due to excessive dew condensation, etc. I am worried.

  An object of the present invention is to provide an electric kettle in which steam in a steam passage enters the sensor chamber leaving a margin, contacts the sensor with good renewability, and is smoothly vaporized and diffused without generating a large amount of condensed water.

  In order to solve the above-mentioned problems, the electric kettle of the present invention introduces a vessel body that performs boiling with a heater, a lid body of this vessel body, a handle provided around the outside of the vessel body, and steam generated in the vessel body. In a handy type electric kettle equipped with a sensor chamber at the upper part of the handle that is brought into contact with the steam sensor, the sensor chamber is branched from the middle of the steam passage for introducing and discharging steam from the container side into the upper part of the handle, Steam flowing from the passage into the sensor chamber and coming into contact with the steam sensor is in contact with the steam sensor. The steam passage extends upstream of the steam passage between the steam passage and the sensor chamber and extends downstream from the steam passage to the sensor chamber. A partition wall that partially partitions the steam passage side and the sensor chamber side is provided so as to restrict the inflow region of the steam.

  In such a configuration, the lid causes the vapor generated from the vessel to be heated to the outside by limiting the position and range and releasing it to the outside, while the vapor pressure generated by limiting the release to the outside at the vessel. A part of the generated steam flows from the body side into the steam passage on the handle side and is discharged, and then flows into the sensor chamber branched from the steam passage to contact the steam sensor to detect boiling. A partition wall extending toward the downstream side of the steam passage at the branch point upstream of the steam passage between the passage and the sensor chamber regulates the inflow area of the steam into the sensor chamber, and an appropriate amount from the offset range that leaves the partition area in the sensor chamber Since it is allowed to flow in, the dew condensation water does not become excessive and smoothly returns to the steam passage without any competition with the inflowing steam. Easily brought into contact with the vapor sensor.

  In the above, the sensor chamber is further located in the upper connecting arm that rises from the outer surface of the handle body, and at least the lower part of the peripheral wall of the upper connecting portion has a sensor case and a double wall structure forming the sensor chamber. It can be characterized by being.

  In such a configuration, in addition to the above, the upper connecting arm that rises from the outer surface of the body of the handle is sufficiently large and strong at a portion where a large load is applied when the handle is gripped and the body is handled. However, a branch structure can be obtained simply by incorporating a sensor chamber with a dedicated sensor case in the upper connecting arm and facing the steam passage. In particular, at least the lower part of the peripheral wall of the upper connecting part is easily touched by the hand holding the handle, but since this part forms a double wall structure with the sensor case, the sensor chamber extends to the outer surface of the upper connecting part of the handle. It is possible to make it difficult to transmit the heat of the introduced steam.

  In the above, the double wall structure may be further characterized by having a gap between the double walls.

  In such a configuration, in addition to the above, the gap between the double walls serves as an air heat insulating part, and therefore, the heat of the steam in the sensor chamber can be further suppressed from being transmitted to the lower part of the peripheral wall of the upper connecting part.

  In the above, the sensor chamber further has a steam inlet from the container side at the upper end portion and branches to the side away from the container with respect to a vertical steam passage extending downward along the container body. It may be characterized by extending downward from the upper branch point for the steam passage of the chamber.

  In such a configuration, in addition to the above, the sensor chamber further has a steam inlet from the container side at the upper end, and branches to the side away from the container with respect to the vertical steam passage extending downward along the container body. Therefore, the upper connecting arm of the handle and the outer surface of the body are provided so as to adapt to a connecting form in which the shape is T-shaped. In addition, the partition wall extends downward with the upstream branching point of the steam passage and the sensor chamber as an upper base, and the lower side of the sensor chamber without being disturbed in the forward direction with the downward steam that is downstream of the steam passage. The dew condensation water that is generated is deviated from the lower part of the sensor chamber to the steam passage without being obstructed by the partition wall and the inflowing steam and directed toward the discharge side.

  In the above, at the downstream branch point where the sensor chamber branches from the steam passage, the sensor chamber has a guide portion that protrudes from the sensor chamber side to the steam passage side than the partition wall and receives the steam and guides it to the sensor chamber side. The bottom surface of the plate may be inclined downward toward the steam passage including the guide portion.

  In such a configuration, in addition to the above, the guide portion provided at the downstream branch point where the sensor chamber branches from the steam passage protrudes further toward the steam passage side than the partition wall from the sensor chamber side and travels downstream. Since a part of this is received and guided to the sensor chamber side, the flow of steam into the sensor chamber is made smoother, and the amount of steam flowing into the sensor chamber between the guide portion and the lower end of the partition wall is regulated as set. be able to. In addition, the dew condensation water generated in the sensor chamber due to the downward inclination toward the steam passage including the guide portion on the bottom surface of the sensor chamber can be smoothly flowed away to the steam passage.

  Further features of the present invention will become apparent from the following specific description and drawings. Each feature of the present invention can be used alone or in combination with various combinations.

  According to the electric kettle of the present invention, a portion of the steam is handled from the container side by the vapor pressure under the restriction while the position and range are limited by the lid and the steam is discharged to the outside for safety of use. In the middle of flowing into the steam passage on the side and moving toward the discharge side, a part of the steam flows into the sensor chamber branching from the steam passage and is brought into contact with the steam sensor to be used for detection of boiling. The inflow of steam is regulated by a partition wall that extends from the branch point on the upstream side of the steam passage to the downstream side of the steam passage, so that the amount of inflow steam and its condensed water do not become excessive, and the steam contacts the steam sensor with good renewability. This makes it easy to detect boiling, and the condensed water is easily returned to the steam passage to vaporize and diverge.

  In addition to the above, the sensor chamber has a dedicated sensor case by using an upper connecting arm that is sufficiently large and strong at the part where a large load is applied when handling the body by holding the handle. Since the branch structure can be obtained simply and inexpensively by incorporating it as a single product and facing the steam passage, it does not cause an increase in cost. In addition, at least the lower part of the peripheral wall of the upper connecting part is easily touched by the hand holding the handle. However, the sensor case and the double wall structure make it difficult to transmit the heat of the steam introduced into the sensor chamber, and it is hot for the user. You can prevent things that make you think.

  In addition to the above, since the air gap between the double walls serves as an air heat insulating portion, the heat of the steam in the sensor chamber is further suppressed from being transmitted to the lower portion of the peripheral wall of the upper connecting portion, thereby further protecting the user.

  In addition to the above, the sensor chamber branches from the middle of the vertical steam passage extending downward along the container body to the side away from the container, and has an upper end of the handlebar. It is suitable for a T-shaped connection form between the connecting arm and the outer surface of the body, and can be provided easily and inexpensively without adding or changing a special form. In addition, the partition wall extends downward with the upstream branching point of the steam passage and the sensor chamber as an upper base, and the lower side of the sensor chamber without being disturbed in the forward direction with the downward steam that is downstream of the steam passage. The small amount of dew condensation water that is generated tends to naturally flow down from the lower part of the sensor chamber to the steam passage without being obstructed by the partition wall or from the inflowing steam, and is easily vaporized and emitted to the discharge side.

  In addition to the above, a guide portion provided at a downstream branch point where the sensor chamber branches off from the steam passage projects a part of the steam that protrudes from the sensor chamber side toward the steam passage side from the partition wall toward the downstream side. Since it guides to the sensor chamber side, in addition to making the flow of steam into the sensor chamber smoother, the amount of steam flowing into the sensor chamber between the guide and the lower end of the partition wall is regulated as set, and boiling is prevented. Detection accuracy can be increased. In addition, the dew condensation water generated in the sensor chamber due to the downward inclination toward the steam passage including the guide portion on the bottom surface of the sensor chamber can be smoothly flowed away to the steam passage.

  Embodiments of the present invention will be described below with reference to FIGS. However, the present invention is not intended to limit the scope of the present invention to the following embodiments, but is merely an illustrative example, unless otherwise specified.

  As shown in FIG. 1, the handy type electric kettle according to the present embodiment includes a container body 4 for boiling water by a heater 1, a lid body 5 of the container body 4, and a handle 9 provided around the outer periphery of the container body 4. A sensor chamber 30 above the handle 9 for introducing the steam generated in the container 4 and bringing it into contact with the steam sensor 26, and the lid 5 limits the position and range of the steam generated from the container 4 when boiling the water. Then, a part of the steam generated in the container body 4 is caused to flow from the container body 4 side to the steam passage 31 on the handle 9 side with the steam pressure generated by restricting the discharge to the outside while discharging to the outside. In the middle of discharging, the water is also introduced into the sensor chamber 30 branched from the steam passage 31 and brought into contact with the steam sensor 26 to detect boiling.

  In the electric kettle of this embodiment, as shown in FIGS. 1 and 2, in particular, as shown in FIG. 1 and FIG. 2, the sensor chamber 30 starts from the middle of the steam passage 31 for introducing and discharging steam from the body 4 side into the upper portion of the handle 9. Branching from the steam passage 31 to the sensor chamber 30 so that the inflowing steam contacts the steam sensor 26, and the steam passage 31 is connected to the steam passage 31 upstream of the steam passage 31 between the steam passage 31 and the sensor chamber 30. A partition wall 32 is provided that extends downstream and partially partitions the steam passage 31 side and the sensor chamber side 30 so as to restrict the inflow region of the steam from the steam passage 31 to the sensor chamber 30. As a result, the inflow area of the steam into the sensor chamber is restricted by the partition wall extending toward the downstream side of the steam passage at the branch point on the upstream side of the steam passage between the steam passage and the sensor chamber. Since an appropriate amount of water is allowed to flow in from the above range, the flow of dew flowing into the sensor chamber 30 while flowing back into the sensor chamber 30 smoothly without returning to the steam passage 31 without excessively condensing with the inflowing steam. It is easy to make contact with the vapor sensor 26 with good renewability.

  As a result, the position and range of the cover 5 are limited and the steam is discharged to the outside for safety in use, and a part of the steam is transferred from the container 4 side to the handle 9 side with the steam pressure under the restriction. In the middle of flowing into the steam passage 31 and going toward the discharge side, a part of the steam flows into the sensor chamber 30 side branched from the steam passage 31 and is brought into contact with the steam sensor 26 to be used for detecting boiling. The flow of steam into the chamber 30 is regulated by a partition wall 32 extending from the branch point on the upstream side of the steam passage 31 to the downstream side of the steam passage 31, so that the amount of inflow steam and its condensed water are not excessive, and the steam is renewed It can be easily contacted with the steam sensor to detect boiling, and the condensed water can be easily returned to the steam passage to vaporize and diverge.

  As shown in FIG. 3, the sensor chamber 30 is located in the upper connecting arm 109 that rises from the outer surface of the container 4 of the handle 9, and at least the lower part of the peripheral wall of the upper connecting portion 109 forms the sensor chamber 30. The sensor case 130 has a double wall structure as shown in FIGS. As a result, the upper connecting arm 109 that rises from the outer surface of the body 4 of the handle 9 is sufficiently large and strong at a portion where a large load is applied when the handle 9 is gripped and the body 4 is handled. A branched structure as shown in FIGS. 1 and 2 can be obtained simply by incorporating the sensor chamber 30 in the connection 109 with a dedicated sensor case 130 and facing the steam passage 31. Moreover, at least the lower part of the peripheral wall of the upper connecting part 109 is easily contacted by the hand holding the handle 9, but this part forms a double wall structure with the sensor case 130, so the outer surface of the upper connecting part 109 of the handle 9 It is possible to prevent the heat of the steam introduced into the sensor chamber 30 from being transmitted to the user and to prevent the user from feeling hot. Here, the double wall structure further has a gap 111 as shown in FIG. 2 between the double walls, and the gap 111 between the double walls serves as an air insulation portion. Safety that further suppresses the heat of steam from being transmitted to the lower outer surface of the peripheral wall of the upper connecting portion 109 can be achieved.

  More specifically, the sensor chamber 30 has a connection port 4d2 connected to the container body 4 side as a steam inlet from the container body 4 side at the upper end portion, and a vertical steam passage extending downward along the container body 4 It is assumed that the partition wall 32 extends downward from the upper branch point with respect to the steam passage 31 of the sensor chamber 30. In this way, the sensor chamber 30 has a connection port 4d2 connected to the container body 4 side as a steam inlet from the container body 4 side at the upper end portion, and a vertical steam passage 31 extending downward along the container body 4. By branching to the side away from the container body 4, the upper connection arm 109 of the handle 9 and the outer surface of the container body 4 are provided so as to adapt to a connection form in which the shape is T-shaped. Further, the partition wall 32 extends downward with the upstream branching point of the steam passage 31 and the sensor chamber 30 as an upper base, and becomes a forward direction with the downward steam which is downstream of the steam passage 31 without disturbing the flow of the sensor. The dew condensation water that flows in the lower side of the chamber 30 is allowed to naturally flow down from the lower part of the sensor chamber 30 to the steam passage 31 without being obstructed by the partition wall 32 or from the inflowing steam and directed toward the discharge side.

  Further, as shown in FIG. 2, steam on the way from the sensor chamber 30 side to the steam passage 31 side rather than the partition wall 32 to the downstream branch point where the sensor chamber 30 branches from the steam passage 31 and toward the downstream side. It has a guide part 130a that receives and guides it toward the sensor chamber 30, and the bottom surface 30a of the sensor chamber 30 is inclined downward toward the steam passage 31 including the guide part 130a. As a result, the guide portion 130a provided at the downstream branch point where the sensor chamber 30 branches from the steam passage 31 projects from the sensor chamber 30 side to the steam passage 31 side rather than the partition wall 32, and a part of the steam toward the downstream side. The steam sensor is exposed to the sensor chamber 30 downward by making a U-turn to the non-bottom surface 30a side which becomes the non-bottom surface side which is made to flow smoothly toward the bottom surface 30a side along the bottom surface 30a. 26 is reliably brought into contact with the bimetal 26a. In addition, the amount of steam flowing into the sensor chamber 30 between the guide portion 130a and the lower end of the partition wall 32 can be regulated as set to improve the detection accuracy of boiling. In addition, the dew condensation water generated in the sensor chamber 30 due to the downward inclination of the bottom surface 30a of the sensor chamber 30 including the guide portion 130a toward the steam passage 31 can be smoothly flowed away to the steam passage.

  More specifically, as shown in FIG. 1, the container body 4 is configured such that a metal inner container 2 made of stainless steel or the like that is heated by a heater 1 is housed in a resin outer case 3. The body 5 includes a pouring path 6 for pouring the content liquid toward the front end of the upper end of the container body 4, an opening / closing mechanism 7 for opening and closing the pouring path 6, and a lid steam with a water stop function at the time of falling that allows the steam to escape to the outside. A passage 8 is provided. As a result, the inner container 2 that is a kettle container is covered with the outer case 3 so that the user does not touch it directly to cause hot feelings or burns, and the heat insulating property due to the outer case 3 being made of resin. Since the air insulation action between the inner container 2 and the outer case 3 is also helped and the temperature of the outer surface of the container body 4 can be suppressed, the thermal safety when touched is increased. Also, the heating efficiency is somewhat increased due to their heat insulating effect.

  Further, the inner container 2 is closed by the lid 5 and the content liquid can be poured out only when the pouring path 6 provided in the lid 5 is opened by the opening / closing mechanism 7, and the container body 4 falls down when not pouring including the time of boiling water. Even so, the outflow of the content liquid through the pouring channel 6 can be prevented. Further, the steam passes through a predetermined lid steam passage 8 provided in the lid body 5 through a predetermined path, specifically, the operation unit 11 from the outside of the lid body 5 of the opening / closing mechanism 7 and the lid of the lid body 5. Since the discharge is performed at the rear portion of the lid body 5 shown in FIG. 1, for example, away from the position where the external operation unit of the attachment / detachment mechanism 12 from the outside of the body 5 is provided, the unlimited amount from the spout 13 of the container body 4 The risk of being released can be suppressed, and the water stop function at the time of the fall, that is, the water stop valve 14 at the time of the fall provided in the lid steam passage 8 moves to a position where the lid steam passage 8 is closed in response to the fall of the vessel 4. Due to the water stop function, the liquid content can be prevented from flowing out through the lid vapor passage 8 even if the container body 4 falls down.

  However, even if the attachment / detachment mechanism is not essential, the use of the lid steam passage 8 having the operation mechanism such as the water stop valve 14 at the time of overturning as described above causes an increase in the product cost, resulting in a low-cost model. It is difficult to adopt. Therefore, in the present embodiment, the lid steam passage 8 stores or detours the content liquid 16 that flows in when the container body 4 falls down downstream of the steam discharge port 47 to the outside of the lid body 5. 5 It is assumed that the falling outflow prevention unit 8 that prevents or delays reaching the vapor discharge port 47 to the outside is provided.

  Thereby, the lid 5 allows the inside of the inner container 2 to be communicated with the outside of the vessel 4 due to the function of the dispensing path 6 and the lid vapor passage 8, and the liquid 5 is poured out and discharged to the outside. Since the dispensing passage 6 is reliably closed by the opening / closing mechanism 7 except when the content liquid 16 is poured out, the content liquid 16 passes through the dispensing path 6 even if the container 4 falls down during non-pouring including when boiling water. It does not flow out of the body 4. In addition, the lid steam passage 8 is always opened to release steam generated not only during boiling but also from the steam outlet 47 of the lid body 5 to prevent the inside of the container body 4 from being pressurized, Even if the container body 4 falls and the content liquid 16 flows into the lid steam passage 8, the content liquid 16 is prevented from reaching the steam discharge port 47 by storing or detouring the content liquid 16 when it falls. Or you can delay.

  As a result, the lid body 5 passes from the inside of the inner container 2 to the outside of the container body 5 through the pouring path 6 and the lid steam passage 8 so that the content liquid 16 is poured out and the vapor is discharged to the outside. Except for the time of dispensing, the opening / closing mechanism 7 closes the dispensing path 6 so that the liquid 16 does not flow out of the container 4 even when the container 4 falls over when not being poured out. Even if the content liquid 16 flows into the lid vapor passage 8 due to overturning of the container body 4 while preventing the pressure in the container body 4 from being released by releasing the steam generated at or after that time, it is stored in the outflow prevention unit 8a during the overturning Since it prevents or delays reaching the vapor discharge 47 by placing or detouring, the content liquid can flow out to the outside in a large amount through the lid vapor passage 8 at an early stage with a simple and low-cost structure having no moving part. It can be avoided. Therefore, even if the container body 4 falls down, it is easy to prevent the content liquid 16 from flowing out if the container body 4 is raised, and it is possible to avoid wetting around.

  The lid steam passage 8 also has the above-mentioned water stop valve 14 at the time of overturning that closes the lid steam passage 8 when the container 4 falls down. Between them. Thereby, when the container body 4 falls, in addition to the prevention of the outflow of the content liquid 16 by the falling outflow prevention part 8a, the water stop valve 14 at the time of falling works to close the lid steam passage 8 and stop the water, When the container 4 falls, in addition to preventing the outflow of the content liquid 16 at the falling outflow prevention portion 8a, the water stop valve 14 operates during the fall to close the lid steam passage 8 in a water stop state, thereby preventing the outflow of the content liquid 12. Since the function is doubled, it is suitable for expensive models. In particular, the spill prevention part at the time of falling is extremely downstream for a short period of time corresponding to the fact that the water stop valve at the time of falling does not stabilize at the water stop position until the device falls and stops at the downstream. It is only necessary to accept a small amount of content liquid and prevent it from flowing out, and it is easy to prevent outflow to the outside. become.

  Further, since the heater 1 is turned off when the steam sensor 26 detects boiling, heating can be stopped without special control and electrical equipment on the lid body 5 side, and the lid steam passage 8 is provided with an overflow prevention 8a. Therefore, it is possible to prevent the content liquid 16 from reaching the vapor discharge port 47 as well as the vapor sensor 26 even when the container 4 falls down, through the vapor discharge port 47 and the vapor sensor 26. In addition to the steam discharge port 47, the steam path for sending steam to the steam sensor 26 may be simply branched from the outflow prevention unit 8a at the time of falling.

 As a result, the steam sensor 26 touches the steam on the container body 4 side and turns off the heater 1 at the time of boiling detection, thereby eliminating the need for special control and electrical equipment on the lid body 5 side. The lid 5 is suitable for detachable and convenient for liquid supply / discharge of the contents and roundness. In addition, the lid steam passage 8 communicates with the steam discharge port 47 and the steam sensor 26 from the fall prevention part 8a at the time of the fall. The inflow to 26 can be prevented and electrical safety can be achieved, and the steam path 31 to the steam sensor 26 can be simply branched from the outflow prevention portion 8a at the time of falling, and it is easy to ensure sealing performance and water stopping conditions.

  Further, the falling outflow prevention portion 8a is a liquid reservoir portion in which the lid steam passage 8 is locally expanded, and the communication portion to the vapor discharge port 47 and the communication portion to the vapor sensor 26 are partitioned by a partition wall 94. It is assumed. In this way, the falling-out prevention portion 8a is a liquid reservoir portion in which the lid steam passage 8 is locally expanded, so that the steam generated by the inner container 2 is filled with steam while being filled with the partition wall 94. Utilizing the increase in static pressure based on the sorting action, in addition to the discharge to the steam discharge port 47, the steam sensor 26 is reliably sent to touch the steam sensor 26. As a result, the falling outflow prevention unit 8a fills the steam that has been activated in the liquid reservoir region, while utilizing the increase in static pressure based on the sorting action by the partition wall 94, to the steam discharge port 47. In addition to the release, the vapor sensor 26 can also be reliably sent to touch the vapor sensor 26 so that boiling can be detected without delay.

  Here, the partition wall 94 further restricts the flow from the steam passage 31 to the sensor chamber 30 by the partition wall 32 by the partition function that restricts the amount of steam entering the steam passage 31 from the outflow prevention portion 8a at the time of falling. At the same time, double regulation can be performed so as not to excessively flow into the sensor chamber 30. Therefore, it is possible to prevent the condensed water which is likely to be generated due to excessive inflow and to become a large amount from affecting the electrical characteristics of the steam sensor 26, and to avoid the necessity of special treatment for the condensed water.

  Further, the steam discharge port 47 and the steam sensor 26 are provided on the rear side of the lid 5 on the side opposite to the spout 17. As described above, the steam discharge port 47 and the steam detection unit 8a are located at the rear part of the lid body 5 on the opposite side to the spout 17 so that a person in the lid body 5 can receive and open / close the container. Vapor is discharged to the outside from a safe position farthest from the spout 17 on the side where the hands and face are often located, and safety in use can be achieved.

  Further, in the present embodiment, the content liquid 16 is poured into the lid 5 from the outlet 15 opened in the inner container 2 as shown in FIG. A pouring path 6 to be opened, an opening / closing mechanism 7 for opening and closing the pouring path 6, and a lid steam passage 8 with a water stop function at the time of falling to escape the steam to the outside are provided. The inner container 2 has a cylindrical shape with a substantially straight body, and the sealing member 21 of the lid 5 is closed by abutment from above on a predetermined sealing position 2a in the container body 4. The outflow port 15 is provided in the region surrounded by the seal member 21 of the lid 5 so that the front portion 15a of the opening edge is located in the vicinity of the body wall front portion 2b of the inner container 2 in a plan view. Yes.

  As described above, the inner container 2 has a cylindrical shape with a substantially straight body portion, and the sealing member 21 of the lid is closed by contact with the predetermined sealing position 2a from above. The mouth portion of the vessel 2 does not require the inner fitting with the shoulder portion 4a or the lid 5 side of the vessel body 4 or the inward wraparound, and the inner container 2 in the region surrounded by the seal member 21 of the lid body 5. Since the front portion 15a of the opening edge of the outlet 15 of the pouring channel 6 is located in the vicinity of the body wall front portion 2b in plan view, it is easier to make the space smaller than the preceding example. Only when the content liquid 16 is poured out, the remaining amount with respect to the tilt angle of the container body 4 can be made smaller than in the preceding example. When the container 4 is tilted to the horizontal, the remaining amount decreases in each stage.

  Further, the diameter of the upper end portion 2a of the inner container 2, that is, the inner diameter is the same as or substantially equal to the diameter of the trunk portion, and the seal member 21 of the lid 5 comes into contact with the predetermined seal position 2a from above. Along with the lid body 5 that closes 2, the inside diameter of the body 4 of the vessel body 4 becomes large, and the pouring path 6, the opening / closing mechanism 7, and the lid steam passage 8 are collectively arranged in the lid body 5, satisfying the functions required for them. It becomes easy.

  As a result, the inner container 2 having a substantially straight body is closed by abutment of the sealing member 21 of the lid 5 from above on the predetermined sealing position 2a, and the sealing member 21 of the lid 5 In the enclosed area, the body wall front part 2b of the inner container 2 and the front part 15a of the opening edge of the outlet 15 of the pouring channel 6 are easily brought close to each other, and the remaining amount with respect to the tilt angle of the container body 4 is reduced. The content liquid is efficiently drained at a small tilt angle of the container body 4 and is easy to use. In addition, the lid body 5 that abuts the seal member 21 on the large-diameter upper end 2a, which is substantially the same as the body diameter of the inner container 2 and enhances the volumetric efficiency, becomes large without the bulkiness of the container body 4, so Satisfying that the pouring path 6, the opening / closing mechanism 7, and the lid steam passage 8 are centrally arranged to satisfy the functions required for the lid body 5 without overlapping, that is, without being bulky. The body part can be made thinner than the previous example.

  The sealing position 2a as described above may be a part of the opening 4b portion of the shoulder portion 4a of the container body 4 that is connected to the upper end of the inner container 2 from above, but as in the example shown in the drawing If the lid 5 is brought into contact with the upper end 2a of the upper end of the inner container 2 directly from above to close the inner container 2, the seal can be achieved. In order to ensure a more reliable and sealing property, an inner fitting part or an inner contact part to the upper end part 2a opening of the sealing member 21 having substantially the same diameter as that of the body part of the inner container 2 is provided. The front portion 15a of the opening edge of the outlet 15 provided in the lid 5 can be brought closer to the front portion 2b of the body wall of the inner container 2 without being protruded inward or wrapped around. In addition, when the upper end 2a of the inner container 2 forming the sealing position 2a is an outward flange 2a bent outward as shown in the drawing, the outward flange 2a has a wide contact with the seal member 21 abutting from above. Since the contact surface is provided and the sealing performance is further improved, it is preferable to eliminate the need for a sealing structure that projects and seals inside the upper end portion 2a in order to secure the sealing performance of the sealing member 21. Further, as shown in the figure, the outward flange 2a is supported on the step 4a1 below the opening 4b of the shoulder 4a from below via the seal packing 22 so that the inner flange 2 is fitted to the inner container 2 on the body 4 side. It is suitable to connect the both without.

  In this case, as shown in FIG. 1, the bottom part 42 and the contents are formed by applying the resin-formed bottom part 42 from below to the lower end of the body part 41 integrally molded with the shoulder part 4a and the body part 4c of the container 4. By connecting the bottom of the container 2 with the screw 23, the assembly of the container 4 can be easily performed and maintenance is also possible. Of course, fixing the heater 1 to the bottom of the inner container 2 is advantageous in terms of heating efficiency such as adhesion, and the internal power supply unit 24 to the heater 1 is externally fixed to the bottom 42 side. Conveniently, the power supply device 25 can be connected by direct fitting as shown in the figure. However, prior to the connection between the main body portion 41 and the bottom portion 42, the heater 1 side and the internal power supply device portion 24 need to be connected in advance, and the connection is between the unconnected main body portion 41 and the bottom portion 42. Therefore, a wiring length is required that enables operations such as connection release and parts replacement by separating both the main body portion 41 and the bottom portion 42.

  Further, the connecting structure in the vertical direction between the main body portion 41 and the bottom portion 42 is formed between a holding hole 41a opened downward on the main body portion 41 and a holding hole 42a opened upward on the bottom portion 42 as shown in the figure. In addition, the handle 9 can be sandwiched and assembled, and it becomes easy to provide the handle 9 on the container body 4, and it is possible to perform independent maintenance by removing it.

  For this purpose, the base 9a of the handle 9 to be attached to the body 4 needs to have a size and form extending from either the main body part 41 or the bottom part 42 to one side from these connecting parts. When the part is closer to the lower part of the body 4, a size and shape that are long in the vertical direction are suitable for satisfying it. In the illustrated example, the loop body 9b on the inner periphery and the outer periphery of the gripping part fitted on the outer side of the gripping part so that the handle 9 and its attachment base part 9a form a substantially rectangular loop including the upper connecting arm 109 described above. A sensor which is formed hollow by a wall 9c and a base outer peripheral wall 9d fitted to the outside of the mounting base 9a, and the steam sensor 26 is accommodated in a sensor case 130 which forms a sensor chamber 30 in the upper connecting arm 109. Built in as a unit, the bimetal 26a serves as both a boiling temperature detection and an accompanying on / off switch for power feeding.

  The vertical steam passage 31 where the sensor chamber 30 branches in the middle leads the steam and condensed water to the lower part of the handle 9 as a return path 31a formed in the mounting base 9a downstream from the branch position of the sensor chamber 30. It is made to flow out from the outlet 32a there. Here, the return path 31a is located near the vessel body 4, and as shown in particular, the return path 32 portion around the slimmed body portion 4c of the vessel body 4 is closer to the inner container 2 than the other portions. By doing so, even if the condensed water flows down in the return path 31a, it is easy to evaporate by the heat from the inner container 2 side, and it is possible to prevent the condensed water from going out and getting wet around. . For this reason, even if the temperature of the portion of the return path 31a rises somewhat, there is no fear that the hand holding the handle 9 will be touched, and thermal safety is ensured.

  In the unlikely event that the steam that has flowed into the steam sensor 26 part is discharged through the return path 31a together with the dew condensation water, it is introduced under the steam sensor 26 from the liquid reservoir 8a serving as the overflow prevention part 8a. The turning steam does not flow backward to the lid body 5 side, but is allowed to pass through one side so as to escape to the outside. As a result, while the steam whose static pressure increases with the filling of the vapor in the liquid reservoir 8a is diverted to the introduction path 31 over time by a predetermined amount based on the restriction by the partition wall 94, further restriction by the partition wall 32 is performed. On the basis of this, an appropriate amount is brought into contact with the steam sensor 26, and when the steam temperature reaches the boiling equivalent temperature, the steam sensor 26 can immediately respond to enable the heater 1 to be turned off, while the steam passage 31. In addition, the amount of steam entering the return path 31a is suppressed to a necessary minimum, so that dew condensation is unlikely to occur, and even if it occurs, it can be easily diffused by heat from the inner container 2 side as described above.

  As shown in the drawing, the connection between the steam sensor 26 and the power supply circuit to the heater 1 is performed by a lead wire 34 wired through a passage 33 provided in the gripping portion of the handle 9 so as to be separated from the steam passage 31 and the return passage 31a. Steam and condensed water are less likely to affect the wiring. In particular, in the vicinity of the steam sensor 26, the steam passage 31 and the passage 33 are partitioned by the attachment member 35 of the steam sensor 26 for further safety. In order to serve as an on / off switch for the heater 1, the steam sensor 26 has a passive member 26b that stabilizes the bimetal 26a with the leaf spring 36 in a position where the power supply circuit to the heater 1 is kept open and in a closed state. Then, the operation member 37 connected to the passive member 26b and the shaft 26c moves between the swing around the shaft 26c and the operation window 38 that exposes the operation member 37 to the upper rear side of the handle 9 as shown in FIG. The bimetal 26a is switched between the off position and the on position according to the position, and the operation member is used for detecting boiling by detecting the temperature of the steam. 37 is self-off. Such a vapor sensor 26 is a commercially available product.

  As shown in FIG. 1, the opening / closing mechanism 7 is positioned in the vicinity of the rear side of the spout 17 for pouring the content liquid toward the front upper end of the container 4 of the lid 5. Thus, since the opening / closing mechanism 7 is located in the vicinity of the rear side of the spout 17 of the lid body 5, the whole from the outlet 15 to the spout 17 of the spout path 6 that is opened and closed by the open / close mechanism 7 is covered by the lid. The space can be set close to the front side of the body 5, and the operation part 11 of the opening / closing mechanism 7 can be used as the vicinity of the spout 17 or the spout 13 connected to the spout 17, thereby enhancing the visual relevance of both. That is, since the opening / closing mechanism 7 is positioned in the vicinity of the rear side of the spout 17 of the lid 5, the entire portion of the pouring path 6 that is opened and closed by the open / close mechanism 7 from the outlet 15 to the spout 17 is the lid 5. It is possible to install a small space by approaching the front side, and it is advantageous for installation of other necessary equipment, and the operation part 11 of the opening / closing mechanism 7 is close to the spout 17 or the spout 13 connected to it as shown in the illustrated example. The high visual relevance of both makes it easy to use without misoperation.

  Further, since the lid steam passage 8 is provided on the rear side of the lid 5 opposite to the opening / closing mechanism 7, the lid steam passage 8 can be installed with less space near the rear of the lid 5, and the operation unit is also used to discharge steam to the outside. It is kept away from 11 enough. In this way, the lid steam passage 8 is located on the rear side of the lid body 5 opposite to the opening / closing mechanism 7 side frequently operated by the operation unit 11 by a person, and the lid body 5 can be enlarged to help the steam. Even when it is discharged to the outside, it is sufficiently distant from the operation unit 11 and the safety of the user against the steam can be achieved. The water stop function at the time of overturning of the lid steam passage 8 can be realized by various valve bodies that close the lid steam passage 8 when the container body 4 falls down. A metal inner lid 43 is attached to the lower side of the bottom wall 42 where the outflow port 15 of the lid 5 is opened with screws 44 or the like as shown in FIGS. 1 and 4, so that the resin lid 5 is thermally protected. The sealing member 21 provided around the peripheral wall 45 of the lid 5 is sandwiched between the outer periphery of the lid 5 and the outer periphery of the inner lid 43 using the A valve chamber 46 is formed between the lower plate 71 and the inner lid 43 in the rear portion, and the above-described stop-stop water stop valve 14 is accommodated. The valve chamber 46 has a valve chamber upper portion 46b having a valve port 46a located in the middle of the lid steam passage 8, and a seating portion 46c joined to the valve chamber upper portion 46b from below so as to seat the stop valve 14 at the time of the fall. And a valve chamber lower part 46e having a steam inlet 46d around it, and the seating surface 46c1 of the seating part 46c is shaped like a mortar so that the water stop valve 14 at the time of falling has the same shape and settles down. It is like that.

  As a result, when the container body 4 is tilted so that the inclination of the seating surface 46c1 is reversed with respect to the horizontal, the water stoppage 14 at the time of falling moves to the valve port 46a side along the inclination of the seating surface 46c1. It is possible to prevent the content liquid 16 from flowing out to the outside through the lid vapor passage 8, and when the content liquid 16 arrives, it is more reliably closed by the dynamic pressure. If the valve chamber 46 is provided near the inside of the inner container 2 of the lid vapor passage 8 as shown in the illustrated example, it is preferable that the content liquid 16 is prevented from flowing into an extra portion of the lid vapor passage 8. . However, providing the valve chambers 46 at a plurality of locations in the lid steam passage 8 can increase the chance of water stoppage.

  In the present embodiment, instead of providing a plurality of valve chambers 46, the cover steam passage is caused by a delay in closing the stop valve 14 at the time of falling or the like on the way from the valve port 46 a to the steam discharge port 47 opening at the rear upper surface of the lid 5. The lid steam passage 8 is partially expanded as the above-described outflow prevention portion 8a at the time of fall using the dead space due to the fact that the lid body 5 becomes large even if it flows into the valve port 46a of the eighth valve However, instead of this, the content liquid 16 that has flowed in due to the labyrinth form is bypassed and does not reach the vapor discharge port 47 or can be delayed.

  It should be noted that the above-described stoppage of the water stop valve 14 by the inclination of the seating surface 46c1 to the water stop position is performed in any direction around the axis, and the above-mentioned stoppage is performed regardless of the direction in which the body 4 falls. Water is achieved.

  Further, in connection with the provision of the inner lid 43, the inner lid 43 is provided with an outlet 15 of the inner lid 43 so as not to hinder the discharge of the content liquid 16 and the discharge of vapor as shown in FIG. 4. The corresponding range is provided with a communication hole 48 through which mainly the content liquid 16 to be dispensed passes, and a communication hole 49 through which mainly the discharge steam is passed around the valve chamber 46. In order to make it easy to pass, the number of communication holes 48 is extremely smaller than the number of the communication holes 48, and the internal solution 16 is restricted from reaching the valve chamber 46 when the container 4 falls.

  Moreover, the attachment / detachment mechanism 12 is provided between the opening / closing mechanism 7 of the lid 5 and the lid steam passage 8 as shown in FIGS. Thereby, the attaching / detaching mechanism 12 of the lid 5 can be installed using the dead space 52 between the opening / closing mechanism 7 and the lid steam passage 8 in front of and behind the lid 5, and the center of the lid 5 in the front-rear direction is provided. At the position, the lid body 5 can be easily locked to the side of the container body 4 without any deviation in position and locking force, and can be stably locked. Further, the lid 5 can be easily handled without being biased even when the lid 5 is attached and detached with the release of the lock.

  Specifically, the lid 5 has a certain amount of the lid 5 in a recessed portion 4d as shown in FIGS. 1 and 7 formed above the step 4a1 below the opening 4b of the shoulder 4a of the vessel body 4. Attaching with play allows the attachment / detachment mechanism 12 to be attached / detached. The above-mentioned fitting with play is a so-called plug fitting type in which both the lid 5 and the recessed portion 4d have a gentle inclination of a draft angle at the time of resin molding, are fitted in the axial direction, and are removed from the fitting. It is supposed to be removed.

  As shown in FIGS. 5 and 6, the attachment / detachment mechanism 12 for attaching and detaching the lid body 5 is exposed to the lid body 5 and individually hangs the thumb and the index finger or ring finger opposite to the thumb. A pair of left and right engaging members 63 having outwardly facing operation pieces 63 a and 63 a are provided in the lid 5, and the engaging pieces of the engaging members 63 are provided by springs 64 that act between the engaging members 63. 63b always protrudes from windows 45a provided at two places on the left and right of the diameter line of the peripheral wall 45 of the lid body 5. Opposing to this, as shown in FIG. 7, there are locking recesses 65 in which the protruding engaging pieces 63b are engaged at two places on the diameter line of the peripheral surface of the recessed portion 4d formed by the shoulder portion 4a of the container body 4. Is formed.

  As a result, when the finger is put on the pair of left and right operation pieces 63a, the attachment / detachment mechanism 12 is received by the repulsive force of the spring 64 without retracting the engaging member 63 against the spring 64. Can be easily and stably gripped and can be handled freely. Therefore, the lid 5 can be gripped by the attaching / detaching mechanism 12 and can be plug-fitted in the axial direction from above to the recessed portion 4d of the container 4 as shown in FIGS. In the plug fitting intermediate attachment / detachment mechanism 12, the engagement piece 63b protruding from the peripheral wall 45 of the lid 5 abuts on the opening edge of the recessed portion 4d from above. However, the engaging piece 63b is retreated against the spring 64 by receiving a pushing force toward the retreating side by the opening edge of the recessed portion 4d because the lower surface of the projecting portion is the inclined surface 63b1. For this reason, the lid 5 can be further plug-fitted into the recessed portion 4d only by applying a light pushing force without any special operation. The plug fitting final stage lid 5 has its sealing member 21 pressed against the flange 2a at the upper end of the inner container 2 which is a predetermined sealing position on the side of the container 4 by a predetermined amount, and the inner container 2 is shown in FIGS. Close as shown in 2. Simultaneously with this closed state, the engaging piece 63b of the engaging member 63 faces the locking recess 65 on the inner surface of the recessed portion 4d and is released from the pushing by the inner surface of the recessed portion 4d. It is made to project again from 45 and engages with the locking recess 65. As a result, the engagement piece 63b prevents the lid 5 from being pulled upward by the flat upper surface being caught by the same flat lower surface of the locking recess 65, and the repulsive force of the seal member 21 causes the engagement portion 63b to be pulled out. The gap can be kept in the pressure contact state in the vertical direction. That is, the lid 5 can be locked in the closed state and stabilized in the vertical direction. However, the plug fitting to the recessed portion 4d of the lid 5 can be performed with the retraction of the pair of engaging members 63 by manual operation.

  Here, the locking recess 65 is designed so that the receiving amount of the engagement piece 63b is received at a push-back position that gives the spring 64 an appropriate compression state, so that the recess 4d has a play and is plug-fitted. Since the left and right centripetal function of holding the lid 5 being held at the neutral position where the spring force of the spring 64 balances left and right is exhibited, the lid 5 can be stabilized in the neutral position and the axial position in the left-right direction. In connection with this, the spout 13 formed in the shoulder 4a of the vessel body 4 is formed with a stepped portion 4d1 which is lowered toward the recessed portion 4d at the base portion as shown in FIGS. 5 spouts 17 are received and connected. As a result, the content liquid poured out through the pouring path 6 of the lid 5 flows from the pouring port 17 to the pouring port 13 and is poured out. 17 is small, and the lid 5 can be easily handled as a single unit, and the content liquid to be poured out by connection with the spout 13 can be poured out from a position away from the outer surface of the body part of the container 4 by a necessary amount. In addition, the fitting of the spout 17 with the stepped portion 2d1 exhibits a positioning function around the axis when the lid 5 is plugged into the recessed portion 4d from above, and at the end of the plug fitting, The function of preventing the body 5 from rotating around the axis is also exhibited. Accordingly, the lid 5 rattles around the axis, assuming that the engagement between the engagement piece 63b and the locking recess 65 has a moderate play for facilitating engagement / disengagement around the axis of the lid 5. This can be prevented.

  As shown in FIG. 1, the lid 5 is further formed to be hollow with a lower plate 71 having a peripheral wall 45 and an upper plate 70 fitted and elastically engaged or screwed to the lower plate 71 from above. is there. On the upper plate 70, in addition to the previously described steam discharge port 47, as shown in FIG. 5, an operation window 73 for exposing the operation portion 11 of the opening / closing mechanism 7 and an operation piece 63a of the attachment / detachment mechanism 12 are projected to perform the attachment / detachment operation. An attaching / detaching operation recess 74 to be performed and a spout lid 70a extending above the spout 17 and spout 13 are integrally formed. In addition to the valve chamber 46 described above, the lower plate 71 is provided with the outlet 15 and the outlet 17 between the lower plate 71 and the intermediate plate 75 sandwiched between the upper plate 70 shown in FIG. In addition to forming the pouring inner lid 75a that fits under the outlet passage 6 and the pouring lid 70a, the intermediate plate 75 and the auxiliary intermediate plate 76 sandwiched between the intermediate plate 75 and the upper plate 70 are included, and the liquid reservoir A lid steam passage 8 having 8a is formed, and the inner container 2 is connected to the liquid reservoir 8a of the lid steam passage 8 adjacent to the rear portion of the pouring passage 6 so that the steam is discharged when the content liquid 16 is poured. An intake passage 77 is formed that sucks outside air into the inner container 2 from the outlet 47 and smoothly discharges the content liquid 16 without causing negative pressure in the inner container 2.

  Here, the attachment / detachment mechanism 12 has the upper and lower plates 70, 71 in a state in which the engagement member 63 is fitted to the connecting boss 70 a as shown in FIG. 6 with the window 63 c of the upper plate 70. Left and right by a guide portion 8b that protrudes upward from the liquid reservoir 8a formed by the auxiliary intermediate plate 76 and a guide convex portion 70b that protrudes from the lower surface of the upper plate 70 so as to oppose it. The lid 5 is smoothly advanced and retracted with the guidance from the door, so that the lid 5 is smoothly attached and detached with the unlocking. However, the guide on the front side of the engaging member 63 may use another part instead of the guide convex part 70b, for example, another structural protrusion, and depending on the case, it may be moved upward by the liquid reservoir 8a. It may be a protruding portion.

  Further, the opening / closing mechanism 7 has a sliding hole 83 as shown in FIG. 1 formed at a position concentric with the outlet 15 of the intermediate plate 75, and a valve shaft 84a as shown in FIG. The valve 84 is supported so as to be slidable up and down through the seal member 85, and opens and closes the outlet 15 from the lower side through the seal member 86 by the lower end valve body 84b of the valve shaft 84a. A movable cam member 87 for opening and closing is rotatably connected to the valve shaft 84a and is urged upward by a spring 88. A guide formed on the lower surface of the upper plate 70 to guide the vertical sliding of the movable cam member 87. A plurality of fixed cams 91 are formed on the inner circumference of the cylinder 70c so as to switch between opening and holding of the valve 84 in the circumferential direction, and radially formed on the outer circumference of the movable cam member 87. Multiple movable cams 87a Each time when the movable cam member 87 is pushed down against the spring 88 by engaging, the valve 84 is opened and locked at the open holding position. The sequential switching to the rotation position to be closed is repeated. Such a configuration has long been known as a so-called knock mechanism that switches between a protruding state and a retracted retracted state of a ballpoint pen, and is also known in Japanese Utility Model Publication No. 61-160831, and requires special features. Therefore, detailed illustration and description are omitted here.

  In the present embodiment, the outer peripheral engagement piece 11a is shown in FIG. 1 as the cap 11 having the operation portion 11 fitted to the movable cam member 87 so as to be relatively rotatable from above as shown in FIG. As described above, the movable cam member 87 is pushed down by engaging with the opening edge 73a of the operation window 73 from the inside, and the movable cam member 87 is pushed down, but the arc rotation of the movable cam member 87 at that time is affected. Not to be affected. In addition, the valve 84 also prevents the rotation of the valve 84 by fitting a guide pin (not shown) that projects integrally on the valve body 84b and a guide hole (not shown) of the lower plate 71, and does not affect the rotation of the movable cam member 87. , Not to be affected. The seal member 86 provided on the valve body 84b is separated from and in contact with the lower end opening 77a of the intake passage 77 adjacent to the outflow port 15, and the valve 84 is closed, that is, the discharge passage 6 is closed. The inner container 2 is closed during dispensing so that the inner container 2 is not discharged through a route other than the predetermined lid vapor passage 8.

  In the plug fitting structure between the lid body 5 and the recessed portion 4d of the container body 4 as described above, the connection between the lid steam passage 8 and the steam passage 31 is performed by the peripheral wall 45 of the lid body 5 and the recessed portion 4d of the container body 4. Are connected simultaneously with the plug fitting between the plug fitting regions, and the connection is released by releasing the fitting. Such a connection is such that the steam is mainly discharged from a predetermined position by the steam discharge port 47, or the steam reliably reaches the steam sensor 27 part through the steam passage 31 and the boiling is detected without delay. Therefore, it is necessary to prevent the steam from leaking out at this connection portion. For this reason, in the present embodiment, as shown in FIG. 1 and FIG. 2, the connection is made via the seal member 92. Even if such a connection is made via the seal member 92, the above-described seal member 21 and flange are connected. It is more reliable to carry out the crimping in the axial direction in which the lid 5 is plug-fitted into the recessed portion 4d as in the crimping with 2a. However, as described above, the plug fitting region is a region in which the peripheral wall 45 of the lid 5 and the recessed portion 4d of the container body 4 are plug-fitted with some play, so that the axial direction, that is, the vertical direction It is difficult to provide a plane space for connection with direction crimping.

  Therefore, an attempt was made to use the axial crimping between the oblique surfaces using the draft described above in this plug fitting region, but allowing smooth plug fitting to the recessed portion 4d of the lid 5, In addition, it is very difficult to obtain a sufficient pressure-bonded state of the seal member 92 for sufficient sealing between the connecting portions.

To cope with this, in the present embodiment, as shown in FIGS. 1 and 2, the lower portion of the vapor discharge port 47 at the rear of the lid 5 is larger than the draft surface of the peripheral wall 45. An inclined connection surface 45b is formed so as to penetrate the connection port 8c of the lid steam passage 8, and the corresponding steam introduction port 31b is formed on the inner side of the recessed portion 4d of the container body 4 so that the seal member 92 is larger than the draft. The connection port 4d2 is formed so as to protrude with an inclined seal surface 92a, and the maximum initial gap G between the connection surface 45b and the seal surface 92a when the plug is fitted as shown in FIG. > The lid 5 is plugged into the recessed portion 4d so that the connection surface 45b increases the axial overlap with the seal surface 92a, satisfying the relationship of the pressure contact margin S, and the overlap amount is L ₀ . From this point, the connection surface 45b contacts the seal surface 92a. It was started, the connection surface 45b until the amount of overlap or later becomes the largest L ₁ is gradually pressed against the sealing surface 92a, to ensure a final pressure allowance S. With this final pressure contact allowance S, the connection ports 8c, 4d2 are connected to each other while securing the sufficient pressure contact of the seal member 92 at the same time as the plug fitting to the recessed portion 4d of the lid 5 is completed. Moreover, in the pressure welding for the pressure welding allowance S, the amount of pressure contact is increased while sliding only within a limited range of the remaining overlap L ₃ between the connection surface 45b and the seal surface 92a in the final stage of plug fitting. Therefore, since there is no catching and the sliding resistance does not work so much, the attachment of the lid 5 by plug fitting is easily achieved. Since the lid body 5 is extracted in a direction to reduce the pressure contact, it can be performed more easily.

  As shown in FIG. 2, the pressure contact margin S is set uniformly between the connection surface 45b and the seal surface 92a. However, this is because the inclination angle of the seal surface 92a is larger than the inclination angle of the connection surface 45b. Then, when the pressure contact allowance S is set so as to gradually increase from the uppermost side to the lowermost side between the connection surface 45b and the seal surface 92a, it is possible to avoid or connect when the lid 5 is plug-fitted into the recessed portion 4d. While being advantageous in reducing the resistance, a firm connection can be obtained at the final stage.

  The connection port 4d2 is formed as an inner end portion of an elastic saddle tube 93 that is integrally formed outwardly with the peripheral wall 45 and is fitted to the saddle tube 4e that faces the upper end of the steam passage 31 to be connected to the steam passage 31. A seal member 92 is integrally formed there. The seal member 92 has a seal lip 92b that protrudes toward the connection surface 45b and is curved toward the inner diameter side. The seal surface 92a is formed by a curved surface that is convex toward the connection surface 45b of the seal lip 92b. ing. As a result, the connection between the connection ports 8c and 4d2 via the seal member 92 is lighter, and is achieved in a sufficiently contacted state in which more annular contact continuity and sufficient contact surface width are ensured.

  By the way, the reaction force of the pressure contact due to the pressure contact allowance S between the connection surface 45b and the seal surface 92a is the engagement stop in the radial direction between the spout 17 of the lid 5 and the step portion 4d1 of the spout 13 of the vessel 4. The lid 5 is received by the function, and is stably held in the front-rear direction without the influence of the plug fitting with play with the recessed portion 4d, and the connection between the connection ports 8c and 4d2 via the seal member 92 is achieved. There will be no loosening or poor connection.

  In the lid steam passage 8, the steam from the liquid reservoir 8 a that substantially corresponds to the installation height range between the steam discharge port 47 and the connection port 8 c that existed separately at the rear of the lid body 5. Is formed so as to face the lower side of the steam discharge port 47, and steam generated actively in the boiling stage has a ventilation resistance. It obstructs the escape to the low steam discharge port 47 side, and it reliably enters the steam passage 31 side with a predetermined restriction between the lower plate 71 and the boiling by the steam sensor 26 without delay. It is supposed to be detected. On the contrary, steam actively generated in a boiling state does not enter through the intake passage 77 on the side where the intake passage 77 opens in the portion where the valve port 46a of the lid steam passage 8 of the lower plate 71 opens upward. Thus, a Γ-shaped guide wall 95 as shown by the phantom line in FIG. 1 guided to the rear side of the lid 5 can be provided.

  Finally, as shown in FIG. 1, the container body 4 has a stationary surface 101 on the lower surface of the bottom portion 42. The stationary body 101 is installed on the power supply base 102 by the stationary surface 101, and an external power supply device provided there. 25 is connected to an internal power supply device 24 so that it can be heated by being supplied with power from a household power source connected to the power supply stand 102. After boiling, it is removed from the power supply stand 102 and carried by the handle 9, and can be moved to the required position. Can be used for repeated dispensing on the spot.

  If the power supply stand 102 is equipped with a power supply cord 103 connected to a household power supply together with the cord take-up reel 104 as shown in the example shown in FIG. Although illustration is omitted, it is preferable to have a stopper mechanism that performs winding by a spring force and stops at a predetermined drawing position, but is not limited thereto.

  According to the present invention, an appropriate amount of steam in the steam passage is allowed to flow into the sensor chamber and brought into contact with the sensor with high renewability to improve boiling detection accuracy, and can be smoothly vaporized and diffused without generating a large amount of condensed water.

It is sectional drawing which shows one example of the electric kettle which concerns on embodiment of this invention. It is principal part sectional drawing of the same electric kettle. It is a perspective view which shows the steam sensor of the same electric kettle. It is a perspective view which shows the cover body of the same electric kettle in the upside down state. It is a perspective view in the upright state of the cover body of the same electric kettle. It is the perspective view which combined and combined the attachment / detachment mechanism with the upper board and auxiliary | assistant intermediate | middle board of the cover body of the electric kettle. It is the perspective view which removed and looked at the lid of the electric kettle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heater 4 Body 5 Lid 9 Handle 16 Content liquid 17 Outlet 26 Steam sensor 31 Steam path

Claims (5)

An apparatus for boiling water with a heater, a lid of the apparatus body, a handle provided around the exterior of the apparatus body, and a sensor chamber above the handle for introducing steam generated in the apparatus body and contacting the steam sensor. In the handheld electric kettle provided,
The sensor chamber is branched from the middle of the steam passage for introducing and discharging steam into the upper part of the handle from the container side, so that the steam that branches from the steam passage to the sensor chamber contacts the steam sensor. A partition that partially divides the steam passage side and the sensor chamber side at a branch point on the upstream side of the steam passage with the sensor chamber so as to restrict the inflow region of the steam from the steam passage to the sensor chamber. An electric kettle characterized by providing walls.   The sensor chamber is located in the upper connecting arm that rises from the outer surface of the handle body, and at least the lower part of the peripheral wall of the upper connecting portion has a double wall structure with the sensor case forming the sensor chamber. The electric kettle as claimed in claim 1.   The electric kettle according to claim 2, wherein the double wall structure has a space between the double walls.   The sensor chamber has a steam inlet from the container side at the upper end and branches to a side away from the vertical steam passage extending downward along the container body, and the partition wall is connected to the steam passage of the sensor chamber. The electric kettle according to claim 1, wherein the electric kettle extends downward from the upper branch point.   At the downstream branch point where the sensor chamber branches off from the steam passage, there is a guide portion that projects from the sensor chamber side to the steam passage side than the partition wall to receive the steam and guide it to the sensor chamber side, and the bottom surface of the sensor chamber is the guide portion The electric kettle according to claim 4, wherein the electric kettle is inclined downward toward the steam passage side.

Images