JP2012239710A - Electric kettle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress occurrence of turnover water running caused by operation of an in-turnover cut-off valve, and to suppress splash of boiling water from the in-turnover cut-off valve through a steam port.SOLUTION: A kettle body 1 including a water storage container 12 has a handle 3 and a hot water supply port 5. A lid body 4 closing the water storage container is provided with: a pouring path 15 communicating the inside of the water storage container and the hot water supply port; a steam passage 18 for discharging steam inside the water storage container to the outside from a steam discharge port 8; and a boiling detection steam path 19 for discharging steam to the outside through a boiling detection part 20 disposed in the handle 3. The steam passage and the boiling detection steam path are provided with in-turnover cut-off valve devices 24, 25, 26 closing the steam passage and the boiling detection steam path upon turnover. The in-turnover cut-off valve devices are configured by a pair of valves disposed in a state that the valves are distributed on both sides of a line connecting the hot water supply port and the handle to the line.

Description

  The present invention relates to an electric kettle in which a steam path for releasing steam in a water storage container is provided in a lid, and in particular, the structure of a water stop valve device for overturning that closes the steam path when the kettle body falls over. Regarding improvement.

  The electric kettle is configured so that a kettle body equipped with a heater is mounted on a power supply base, supplied with electric power, and the water in the water storage container is heated by the heater. Hot water obtained by heating can be taken out by lifting the kettle body from the power supply stand. Therefore, unlike a so-called “kettle” in which an electric kettle is simply heated by a stove, it can be easily heated by connection to a power source and can be easily handled as a portable type. On the other hand, the more convenient it is used, the greater the risk factor with respect to the safety of the user and the safety of the electrical product itself.

  A structure for improving safety in an electric kettle will be described with reference to an example disclosed in Patent Document 1. FIG. 11 is a perspective view showing the appearance of the electric kettle disclosed in Patent Document 1, and FIG. 12 is a cross-sectional view showing a part of the internal structure. However, only portions related to the present invention will be described, and description of other portions will be omitted even though they are illustrated.

  The electric kettle 51 includes a power supply plate 52 and a kettle main body 53. The power supply plate 52 includes a power feeding mechanism (not shown) on the center side of the upper surface thereof, and can energize the heater in the kettle main body 53. The kettle main body 53 is configured with a main body 54 configured in an open container shape and a lid 55 covering the opening as main elements. The lid body 55 is swingably attached around a swing shaft 55a (see FIG. 12) provided at one end of the upper portion of the kettle main body 53. Water can be poured into the main body 54 in a state where the lid 55 is swung upward and the lid is opened (open posture). On the other hand, hot water can be heated with the lid 55 closing the opening of the main body 54 (closed posture).

  The lid body 55 includes a lid body 56, a lid cover 57 mounted on the top of the lid body 56, and a lower plate 59 that is coupled to the lower side of the lid body 56 and seals the inner container 58 in a closed posture. The lid cover 57 is provided with a steam port 60, and the lower plate 59 is provided with a hot water flow hole 61 and a steam flow hole 62. The kettle body 53 is provided with a spout 63 on the upper side and a handle 64 on the opposite side. Furthermore, a lid opening / closing operation unit 65 for opening and closing the lid body 55 is provided between the spout 63 and the handle 64, and a steam port 60 is provided. A valve body 66 for hot water supply control is provided on the inner side of the spout 63, and the valve body 66 is controlled to move in the vertical direction in response to an operation by the hot water operation button 67.

  Thus, by providing the valve body 66, it is possible to prevent the hot water from flowing out through the hot water circulation hole 61 even if the kettle main body 53 falls over during non-pouring including when boiling water. Further, the generated steam is discharged from a steam port 60 on the upper surface of the lid, which is a safe position, through a steam passage 68 through a steam passage 68. Thereby, it is suppressed that a vapor | steam is discharge | released from the spout 63 without limitation.

  Further, as a structure for improving safety, a water stop valve 69 at the time of falling is provided. This over-stop water stop valve 69 is a valve that prevents leakage of hot water from the inner container 58 through the steam port 60 provided on the upper surface of the lid body 55 when the kettle body 53 falls over. Yes, it is arranged in a steam path 68 connected from the inside of the kettle main body 53 to the steam port 60.

  The water stop valve 69 at the time of the fall is composed of a triangular pyramid-shaped weight body 70 and a weight body storage space 71 provided in the lid main body 56 that houses the weight body 70. The weight storage space 71 is also formed in a substantially triangular frustum shape, and the cone 70 can move at least in the vertical direction in the space 71. In a normal state that does not fall, the cone 70 is positioned in the lower part of the cone storage space 71, so that the circulation of steam is allowed. In the water-stopped state, the cone 70 is positioned above the cone storage space 71, so that the steam passage 68 provided on the top surface is blocked, so that leakage of hot water can be avoided.

  The falling water stop valve 69 is configured as a pair of falling water stop valves 69 in which the water stop speeds are made different from each other by making the hole diameters of the steam paths 68 different. This is a structure for shifting the closing timing to cope with different amounts of hot water. The pair of water stop valves 69 at the time of falling are provided in a straight line between the spout 63 and the handle 64.

JP 2010-69016 A

  However, when the pair of water stop valves 69 at the time of falling are arranged in a straight line on the line connecting the spout 63 and the handle 64 as in Patent Document 1, when the kettle main body 53 falls sideways, The water stop valves 69 are arranged side by side. For this reason, there is a possibility that both the water stop valves 69 at the time of falling operate in the same manner and both of them are blocked. In such a case, any of the water stop valves 69 at the time of overturning cannot perform the function of releasing the vapor pressure in the inner container 58, and there is a possibility that flowing water may be generated due to the vapor pressure.

  In addition, when a pair of overturning water stop valves 69 are arranged in a straight line on the line connecting the spout 63 and the handle 64 as in Patent Document 1, one of the overturning water stop valves 69 is the steam of the lid cover 57. It must be arranged close to the mouth 60 in the horizontal direction. The fact that the positions of the water stop valve 69 and the steam port 60 at the time of the fall are close to each other in the horizontal direction means that the water stop valve 69 and the steam port 60 at the time of the fall are arranged in a straight line in the vertical direction. For this reason, it is easy to generate a situation in which the splash of boiling water from the gap of the water stop valve 69 at the time of falling due to the steam pressure in the inner container 58 is directly discharged to the outside through the steam port 60.

  In view of the above, the present invention suppresses the generation of falling water caused by the operation of the water stop valve at the time of falling, and suppresses the scattering of boiling water from the water stop valve at the time of falling through the steam port. An object is to provide an electric kettle that can be used.

  In order to solve the above-mentioned problems, an electric kettle according to the present invention includes a water container having an open upper end, a kettle body including a heater arranged to heat water in the water container, and an outer shell of the kettle body. A handle provided, a hot water supply port provided at the upper end of the kettle body opposite to the handle in the radial direction, and a detachable attachment to the upper end of the kettle body, closing the opening of the water storage container Alternatively, a lid that opens, a pouring path that is provided in the lid so as to allow communication between the inside of the water storage container and the hot water supply port and that can be opened and closed, and steam in the water storage container are supplied to the lid. A steam passage provided so as to be discharged to the outside from a provided steam discharge port, a boiling detection unit that detects boiling by contact with the steam, and the steam in the water storage container via the boiling detection unit Boiling detection discharged to the outside A falling water stop valve device disposed in the steam passage and the boiling detection steam passage, and closing the steam passage and the boiling detection steam passage in a state where the kettle body is overturned. The hour stop valve device is configured by a pair of valves arranged on both sides of a line connecting the hot water supply port and the handle.

  According to the electric kettle having the above-described configuration, the pair of valves constituting the water stop valve device at the time of falling are arranged on both sides of the line connecting the hot water supply port and the handle, so that the kettle body falls down. Sometimes one of the valves is always on the upper side. Therefore, the valve on the upper side does not close and maintains the role of releasing the vapor pressure in the water storage container, so that water flowing due to the vapor pressure can be prevented.

  In addition, by arranging the valves on both sides of the line connecting the hot water supply port and the handle, the horizontal distance of the valve from the steam discharge port can be made sufficiently long. As a result, it is possible to easily avoid the valve and the steam outlet from being positioned on a straight line in the vertical direction, and the splash of boiling water from the gap between the valves is prevented from being discharged directly to the outside through the steam outlet. The

The perspective view which shows the external appearance of the electric kettle in embodiment of this invention The perspective view which shows the structure except the cover body of the electric kettle Cross section of the electric kettle Sectional drawing which showed the cross section of the cover body of the electric kettle along the AA line of FIG. Bottom view showing the bottom surface of the lower lid member by removing the inner lid from the lid of the electric kettle Bottom view of the inner lid of the electric kettle The top view which removed the upper cover member etc. from the lid body of the electric kettle, and showed the upper surface of a part of the lower cover member Bottom view showing the positional relationship between the bottom of the lower lid member of the electric kettle and the structure of the inner lid Top view showing the positional relationship of elements in the lid of the electric kettle The perspective view which shows the state which removed the upper cover member of the cover body of the same electric kettle Sectional drawing along CC line in FIG. 9 of the same electric kettle The perspective view which shows the external appearance of the electric kettle of a prior art example Sectional drawing which shows a part of electric kettle of FIG.

  The electric kettle of the present invention can take the following aspects based on the above configuration.

  That is, one of the pair of valves can be configured to communicate only with the steam passage, and the other can communicate with only the boiling detection steam path. According to this configuration, since the steam passage is provided directly through the one valve to the boiling detector, the boiling detection time can be shortened.

  The lid includes a lower lid member provided with a part of the steam passage and the boiling detection steam path, an upper lid member attached to cover an upper part of the lower lid member, and a lower lid member. An inner lid that covers the lower surface and faces the inside of the water storage container; and a steam outlet hole that guides the steam in the water storage container to a space on the inner lid formed by the lower lid member. A path is formed through which the steam guided to the space between the lower lid member and the inner lid reaches the steam path and the boiling detection steam path via the pair of valves, The steam inlet may be arranged at a position on an intermediate line between the pair of valves. In this way, by concentrating and arranging the steam outlet holes in the middle of the pair of valves, it is close to both valves, and the speed at which the steam reaches both valves is maintained sufficiently fast to detect boiling. There is no impact on time. In addition, by consolidating the arrangement locations of the steam outlet holes, the degree of freedom of the arrangement relationship with other elements can be improved.

  In this configuration, the pair of valves are formed by dividing a space between the lower lid member and the inner lid by a valve chamber wall, and are connected to the first valve chamber communicating with the steam passage and the boiling detection steam path. A second valve chamber communicating with the first valve chamber, and a weight member mounted in the first and second valve chambers, and the steam passage and the displacement of the weight member in the valve chamber according to the inclination of the kettle body. Communication with the boiling detection steam path is closed, and the valve chamber wall has a notch for communicating the space between the lower lid member and the inner lid with the first and second valve chambers. The first valve chamber and the second valve chamber are different in the horizontal direction of the notch of the valve chamber wall, whereby the steam introduced from the steam inlet is More than the first valve chamber May be configured to 2 are set to facilitate enters the valve chamber. Thereby, it becomes easy for steam to reach the boiling detection steam path, and the accuracy of boiling detection can be improved.

  The pair of valves is formed by dividing a space between the lower lid member and the inner lid by a valve chamber wall, and communicates with the first valve chamber communicating with the vapor passage and the boiling detection vapor path. A second valve chamber, and a weight member mounted in the first and second valve chambers, and the steam passage and the boiling detection by displacement of the weight member in the valve chamber according to the inclination of the kettle body The communication with the steam path is configured to be closed, and the path that reaches the steam discharge port from the first valve chamber via the steam path is configured to be a path that bypasses the straight path. It is preferable that As a result, the distance from the first valve chamber to the steam discharge port is increased, and the occurrence of a situation in which the steam passing through the first valve chamber is directly ejected strongly from the steam discharge port is suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Embodiment>
FIG. 1A is a perspective view showing an external appearance of an electric kettle in an embodiment of the present invention. The electric kettle includes a kettle body 1 and a power supply base 2 having a power supply mechanism (not shown) on the upper surface. The kettle body 1 has a generally cylindrical shape with an open top, and a handle 3 is provided on the outer shell thereof. The lid 4 that covers the opening at the top of the kettle body 1 is attached to the upper end of the kettle body 1, and the mounting state is locked by a member that engages with the shoulder as will be described later. On the opposite side of the handle 3 at the shoulder of the kettle body 1, a hot water supply port 5 is provided.

  On the upper surface portion of the lid body 4, a lid opening / closing operation lever 6 for allowing the lid body 4 to be detached and a hot water supply operation portion 7 for operating whether or not hot water is discharged from the kettle body 1 are provided. A vapor discharge port 8 that is an opening for discharging vapor generated in the kettle main body 1 is further provided on the upper surface of the lid body 4. A switch operating member 9 is disposed on the top of the handle 3, and a boiling detector (see FIG. 2, which will be described later) provided inside the handle 3 can be operated from the outside.

  The structure in FIG. 1A with the lid 4 removed is shown in FIG. 1B. A locking recess 10 is provided on the inner peripheral surface near the shoulder of the kettle body 1. The locking recess 10 is engaged with the ends of a pair of left and right projecting engagement pieces (described later) provided on the lid body 4 so as to be interlocked with the lid opening / closing operation lever 6. Part of the function to fix Further, a steam path connection port 11 is provided at a position corresponding to a portion where the upper end of the handle 3 is coupled to the kettle body 1, and the steam generated in the kettle body 1 is discharged to the outside via the boiling detection unit. Part of the boiling detection steam path (see FIG. 2, described later).

  The internal structure of this electric kettle is shown in FIG. The kettle body 1 is configured by housing a metal water storage container 12 such as stainless steel in an outer case 13 made of resin or steel plate. A heater 14 is disposed at the lower part of the kettle body 1 in contact with the water storage container 12, and the water stored in the water storage container 12 can be heated by the heater 14 to perform boiling. The lid 4 includes a lower lid member 4a, an upper lid member 4b mounted on the upper portion, and a metal inner lid 4c coupled to the lower side of the lower lid member 4a. The inner lid 4 c is provided to thermally protect the lower lid member 4 a made of resin and to restrict passages for hot water and steam in the water storage container 12. Various element members are also arranged in a space formed between the lower lid member 4a and the upper lid member 4b.

  The lower lid member 4 a is provided with a pouring path 15 for pouring the content liquid toward the hot water supply port 5 of the kettle body 1, and a hot water control valve 16 for hot water control is arranged in the middle of the pouring path 15. The hot water supply valve 16 is controlled to move in the vertical direction by the hot water supply operation unit 7 via the opening / closing mechanism 17 and can control the state of whether or not hot water is discharged. The lower lid member 4a is further provided with a steam passage 18 for discharging the steam in the water storage container 12 to the outside through the steam discharge port 8 provided in the upper lid member 4b. Although not shown in FIG. 2, a water supply outlet hole and a steam outlet hole are provided in a region corresponding to the extraction passage 15 in the inner lid 4 c and a region communicating with the steam passage 18.

  The steam discharge means including the steam discharge port 8 and the steam passage 18 is provided in order to avoid the risk of unlimited discharge of steam from the hot water supply port 5 of the kettle body 1. The steam discharge port 8 is disposed at a predetermined safe position, that is, a position away from the hot water supply operation unit 7 and the lid opening / closing operation lever 6. Together with the steam passage 18, a boiling detection steam path 19 is provided, and steam generated in the kettle main body 1 can be discharged to the outside via the boiling detection section 20 in the handle 3.

  The boiling detection steam path 19 is provided to supplement the function of discharging the steam from the steam discharge port 8 and to operate the boiling detection unit 20. That is, there is a limit to the arrangement and capacity of the discharge of steam generated when boiling water through the steam discharge port 8. Therefore, a part of the steam generated in the kettle main body 1 is discharged via the boiling detection steam path 19 on the handle 3 side due to the steam pressure generated by limiting the release to the outside, and the boiling detection steam path 19 can perform the functions as described above. The detection chamber 21 is branched from the middle of the boiling detection steam path 19, and the steam flowing into the detection chamber 21 is configured to contact a bimetal switch disposed in the boiling detection unit 20.

  The power supply base 2 is provided with an external power supply device 22, and the kettle body 1 has an internal power supply device 23 connected to the external power supply device 22 while being placed on the power supply table 2. Power is supplied from the connected household power supply.

  The boiling detector 20 is composed of a bimetal switch, and performs on / off operation of power feeding. That is, the switch operation member 9 is engaged with the boiling detection unit 20, and the boiling detection unit 20 can be operated from the outside. When the switch operation member 9 is pressed from the state where the energization of the heater 14 by the boiling detector 20 is off, the bimetal is displaced, and the boiling detector 20 is operated to turn on the energization of the heater 14. The

  Moreover, the boiling detection unit 20 functions as a sensor unit that detects boiling based on the vapor temperature by being incorporated adjacent to a detection chamber 21 that communicates with the boiling detection vapor path 19, and supplies power when boiling is detected. The heater 14 is turned off to cut off the power supply to the heater 14. That is, when the water in the water storage container 12 boils, the bimetal operates according to the temperature rise caused by the generated steam, and the bimetal switch returns to the posture of turning off the energization. Accordingly, the switch operation member 9 also returns to the original state.

  As described above, the content liquid can be poured out only when the water storage container 12 is closed by the lid 4 and the pouring path 15 provided in the lid 4 is opened by the hot water supply operation unit 7. Therefore, even if the kettle main body 1 falls over during non-pouring including when boiling water, the content liquid can be prevented from flowing out through the pour-out path 15. Further, the steam generated in the water storage container 12 is discharged from the steam discharge port 8 through the steam passage 18 provided in the lid body 4, and is discharged to the bottom of the kettle body 1 through the boiling detection steam path 19. The The steam passage 18 and the boiling detection steam passage 19 are always open, and the generated steam is discharged to the outside not only during boiling, but also prevents the pressure in the kettle body 1 from rising. A safety valve is provided in the steam passage 18 and the boiling detection steam passage 19, and the safety is improved by closing the steam passage 18 and the boiling detection steam passage 19 when the kettle body 1 is overturned. ing.

  Below, the water stop valve device at the time of falling disposed in the steam passage 18 and the boiling detection steam passage 19 will be described. The water stop valve device at the time of falling is arranged at a position along the line AA in FIG. However, the water stop valve device at the time of the fall is configured by a pair of valves arranged on both sides of the line connecting the hot water supply port 5 (corresponding to the position of the spout 15) and the handle 3 in FIG. 1A. Therefore, it is not shown in FIG.

  The water stop valve device at the time of falling is shown in FIGS. FIG. 3 is a cross-sectional view of the lid body 4 taken along the line AA of FIG. FIG. 4 is a bottom view of the lower lid member 4a in a state where the inner lid 4c is removed from the lid body 4. FIG. FIG. 5 is a bottom view of the inner lid 4c, and FIG. 6 is a top view of the lower lid member 4a with the upper lid member 4b and the like removed from the lid body 4. FIG.

  As shown in FIGS. 3 and 4, the lower lid member 4 a is provided with a first valve chamber 24 and a second valve chamber 25, and a weight member 26 is arranged in each. The first and second valve chambers 24 and 25 are separated from the surrounding space by first and second annular walls 27 and 28, respectively. However, as shown in FIG. 4, notches 27a and 28a are formed in the first and second annular walls 27 and 28, and the portions communicate with the surrounding space.

  The first and second valve chambers 24 and 25 are provided with first and second vent portions 29 and 30 that form a vent passage, and the vent passage is an upper portion of the first and second valve chambers 24 and 25. Is open. However, FIG. 3 shows a case where the weight member 26 is located in a state of water stoppage at the time of falling, and therefore the openings of the first and second ventilation portions 29 and 30 are sealed by the weight member 26. The first ventilation part 29 communicates with the steam passage 18, and the second ventilation part 30 communicates with the boiling detection steam path 19.

  Lower portions of the first and second valve chambers 24 and 25 are open, and a valve support member 31 is attached to the openings. The seating surface formed on the upper surface of the valve support member 31 has a shape that matches the cone shape of the lower surface of the weight member 26, and can stably support the weight member 26. A through hole 31a is formed around the portion of the valve support member 31 where the weight member 26 is seated. The valve support member 31 is placed in the recess 32 of the inner lid 4c.

  As shown in FIG. 5, two vapor outlet holes 33 are provided on the middle line of the pair of recesses 32 of the inner lid 4 c. However, the intermediate line means a line that passes through an intermediate point between the pair of recesses 32 and is orthogonal to a line that connects the centers of the pair of recesses 32. The steam generated from the water storage container 12 is introduced into the upper space of the inner lid 4 c, that is, around the first and second annular walls 27 and 28 through the steam outlet hole 33. Also, a through hole 34 is provided in the bottom of the recess 32. Further, the inner lid 4 c in the region corresponding to the hot water supply valve 16 is provided with a water injection outlet hole 35. The water pouring hole 35 provides a function of leading hot water to the pouring channel 15 mainly via the hot water supply valve 16.

  As shown in FIG. 3, an auxiliary wall 36 is provided on the upper portion of the lower lid member 4a, and an auxiliary intermediate plate 37 is attached so as to be in close contact with the upper end thereof. Thereby, a space surrounding the periphery of the first and second ventilation portions 29, 30 is formed between the upper surface of the lower lid member 4 a and the auxiliary intermediate plate 37, and serves as a steam passage 18. A steam discharge port 8 is provided in a part of the auxiliary intermediate plate 37. The elements that form a path from the first vent 29 to the steam outlet 8 via the steam passage 18 and a path from the second vent 30 to the boiling detection steam path 19 are shown in FIG.

  FIG. 6 is a top view of the lower lid member 4a and shows a state where the auxiliary intermediate plate 37 has been removed. In addition, the cross section shown in FIG. 3 is a cross section along the BB line shown in FIG. 6 as a plane position. As shown in FIG. 3, the first ventilation portion 29 is closed at the upper end and has an opening 29 a on the side portion. The opening 29 a faces outward with respect to the intermediate line between the first and second ventilation portions 29 and 30. The upper end of the second ventilation part 30 is open, and the side part also has an opening 30a. A pair of groove walls 38 is formed so as to be coupled to the side wall of the second ventilation portion 30, and a groove 38 a formed by the groove wall 38 communicates with the opening 30 a. The groove 38 a forms a part of the boiling detection steam path 19.

  As shown in FIG. 3, in a state where the auxiliary intermediate plate 37 is mounted on the auxiliary wall 36, the upper end of the second ventilation portion 30 is sealed, and the auxiliary intermediate plate 37 is in close contact with the upper end of the groove wall 38. . Therefore, the boiling detection steam path 19 sealed off from the surroundings is formed by the upper surface of the lower lid member 4a, the groove wall 38 and the auxiliary intermediate plate 37. Thereby, only the 1st ventilation part 29 is connected to the steam channel 18 enclosed by the auxiliary wall 36 and the auxiliary intermediate plate 37, and the state where only the 2nd ventilation part 30 is connected to the boiling detection steam path 19 is obtained. .

  7 shows a state where the inner lid 4c shown in FIG. 5 is attached to the bottom surface of the lower lid member 4a shown in FIG. As shown in FIG. 7, a row of steam outlet holes 33 is arranged on the middle line of the two valves indicated by the first and second annular walls 27 and 28. Further, the notch 27a provided in the first annular wall 27 is arranged in a direction parallel to the intermediate line, whereas the notch 28a provided in the second annular wall 28 is provided with the steam outlet hole 33. It is arranged so as to be inclined toward the. Accordingly, it is easier for the steam guided from the steam outlet hole 33 to enter the second valve chamber 25 through the notch 28a than to enter the first valve chamber 24 through the notch 27a. Is set to

  In the above configuration, under normal conditions in which the kettle body 1 is upright, the steam generated from the water storage container 12 is introduced into the upper space of the inner lid 4c through the steam outlet hole 33, and the valve support member 31 The first and second valve chambers 24 and 25 are reached via the through hole 31a. Further, the steam passes through the first and second ventilation portions 29 and 30 to the steam passage 18 and the boiling detection steam path 19 and is discharged to the outside.

  On the other hand, when the kettle main body 1 is tilted and the tilt of the cone-shaped seating surface of the valve support member 31 is tilted so as to be reversed with respect to the horizontal, the weight member 26 is tilted to the seating surface of the valve support member 31. Along the first or second ventilation portion 29, 30 along the side, it is sealed. Thereby, the hot water in the water storage container 12 can be prevented from flowing out through the steam passage 18 or the boiling detection steam passage 19. As described above, the first and second valve chambers 24 and 25, the weight member 26, and the like constitute a water stop valve device at the time of falling.

  According to the present embodiment, a pair of valve arrangements constituting the water stop valve device at the time of falling is as shown in FIG. That is, the weight member 26 indicated by a broken line in FIG. 8 corresponds to the position of the valve. The weight member 26 (valve) is arranged on both sides of the line connecting the hot water supply port 5 and the handle 3.

  As described above, by arranging the valves on both sides of the line connecting the hot water supply port 5 and the handle 3, when the kettle body 1 falls down, one of the valves is always positioned on the upper side. In other words, when the kettle body 1 is in the fall state, the posture of the kettle body 1 is tilted to the side or the hot water inlet 5 or the handle 3 is in contact with the floor. This is because the other side is the upper side. Therefore, since the weight member 26 does not move in the valve on the upper side, the weight member 26 is not blocked and maintains the role of releasing the vapor pressure in the water storage container 12, thereby preventing flowing water due to the vapor pressure.

  Further, by arranging the valves on both sides of the line connecting the hot water supply port 5 and the handle 3, the horizontal distance of the valve from the steam discharge port 8 can be made sufficiently long. As a result, it is possible to easily avoid the valve and the steam discharge port 8 being positioned on a straight line in the vertical direction, and even when the water in the water storage container 12 is excessively added, the boiling water is scattered from the gap between the valves. It is difficult for a state of being discharged to the outside through the vapor discharge port 8.

  Further, only the first valve chamber 24 communicates with the vapor passage 18 connected to the vapor discharge port 8 via the first ventilation portion 29, and the second valve chamber via the second ventilation portion 30 communicates with the boiling detection vapor path 19. Only 25 communicates. Thereby, since the vapor | steam path | route directly connected to the boiling detection part 20 via one valve | bulb is provided, boiling detection time can be advanced.

  As shown in FIG. 6, the opening 29 a of the first ventilation portion 29 faces outward with respect to the intermediate line between the first and second ventilation portions 29 and 30. Thereby, the path | route which the vapor | steam which approachs into the vapor | steam channel | path 18 from the opening 29a detours toward the vapor | steam discharge port 8 from the opening 29a is taken. Thereby, the distance from the 1st valve chamber 24 to the vapor | steam discharge port 8 becomes long, and generation | occurrence | production of the situation where the vapor | steam which exited the opening 29a directly injects directly from the vapor | steam discharge port 8 is suppressed.

  As shown in FIG. 7, the vapor outlet hole 33 of the inner lid 4c is provided only in the middle part of the first and second valve chambers 24, 25, but is arranged in the middle part. The first and second valve chambers 24 and 25 are close to each other. Therefore, the speed at which the steam reaches the first and second valve chambers 24 and 25 can be maintained sufficiently fast so as not to affect the boiling detection time. Thus, by consolidating the arrangement locations of the steam outlet holes 33, the degree of freedom of the arrangement relationship with other elements can be improved. For example, the position of the steam outlet hole 33 can be set so as to avoid a state in which the screw connecting the lower lid member 4 a and the upper lid member 4 b is visible from the steam outlet hole 33.

  In addition, it is easier for the steam guided from the steam outlet hole 33 to enter the second valve chamber 25 through the notch 28a than to enter the first valve chamber 24 through the notch 27a. In addition, since the orientation of the notches 27a and 28a is set, it is easy for steam to reach the boiling detection steam path 19, and the accuracy of boiling detection can be improved.

  Next, a structure related to the function of the lid opening / closing operation lever 6 will be described. FIG. 9 is a perspective view showing a state where the upper lid member 4b of the lid 4 of the electric kettle having the above configuration is removed, and FIG. 10 is a cross-sectional view taken along the line CC in FIG.

  As shown in FIG. 9, each of the pair of lid opening / closing operation levers 6 is attached to a pair of projecting engagement pieces 39, and is exposed to the upper part from an opening (not shown) of the upper lid member 4b. The projecting engagement piece 39 is supported by the upper lid member 4b so as to be slidable in the radial direction, and its distal end portion 39a projects outwardly through a window provided on the side wall of the lower lid member 4a. . A lever spring 40 is attached between the pair of projecting engagement pieces 39, and the projecting engagement pieces 39 are biased outward. Accordingly, the tip end portion 39 a of the projecting engagement piece 39 normally projects from the outer peripheral surface of the lid body 4, but it can be retracted inside against the biasing force of the lever spring 40. The tip end portion 39a of the projecting engagement piece 39 is disposed so as to engage with the engagement recess 10 of the kettle body 1 shown in FIG.

  The lid 4 is detachable with respect to the kettle main body 1 and is configured to operate the attachment / detachment by pinching the lid opening / closing operation lever 6. That is, the state shown in FIG. 1B is a state in which the lid body 4 is detached, and when the lid body 4 is attached, the lid opening / closing operation lever 6 is pinched and operated to be pushed into the upper end portion of the kettle body 1. In the middle of this, the tip end 39 a of the projecting engagement piece 39 comes into contact with the upper edge of the kettle body 1. Since the lower end of the tip end portion 39 a is inclined, it is pressed backward by the contact, and the projecting engagement piece 39 is retracted against the lever spring 40. When the lid 4 is closed, the tip 39a of the projecting engagement piece 39 returns through the window of the lower lid member 4a and engages with the engagement recess 10 of the kettle body 1 so that the closed state is established. Locked.

  When opening the lid body 4, the lid opening / closing operation lever 6 is operated to apply a force in a direction in which the pair of projecting engagement pieces 39 are close to each other against the biasing force of the lever spring 40, thereby The front end 39 a of the joining piece 39 is retracted from the outer peripheral surface of the lid 4 to the inside. Therefore, the engagement between the protruding engagement piece 39 and the engagement recess 10 of the kettle body 1 is released, and the lid body 4 can be pulled upward and detached from the kettle body 1.

  As described above, when the lid 4 is opened, an operation in a direction in which the lever spring 40 is compressed is performed by the sliding lever 6. At this time, the lever spring 40 may bend in the lateral direction and be blocked by surrounding members, and may not operate normally. For this reason, in the present embodiment, side guide ribs 41a that restrict lateral displacement of the lever spring 40 are provided on the lower lid member 4a to prevent lateral deflection. In other words, the lever spring 40 abuts against the guide rib 41 to restrict lateral movement and is difficult to bend.

  The cross-sectional shape of the side guide rib 41a is shown in FIG. 10, and the planar arrangement is shown in FIG. The side guide rib 41 a is formed on the upper surface of the lower lid member 4 a and is disposed on the intake passage wall 42 formed continuously with the auxiliary wall 36 that forms the steam passage 18. The intake passage wall 42 forms an intake passage that allows the inside of the water storage container 12 to communicate with the steam passage 18, and sucks outside air from the steam discharge port 8 into the water storage container 12 when the content liquid is poured out. This is an element provided so that the hot water can be smoothly discharged without negative pressure. Furthermore, as shown in FIGS. 10 and 6, a lower guide rib 41b for restricting the vertical displacement of the lever spring 40 is provided on the lower lid member 4a to prevent vertical deflection.

  By providing the side guide rib 41a and the lower guide rib 41b on the intake passage portion 42, inconvenience such as defective sealing can be avoided even when sink marks due to molding occur at the base of the side guide rib 41a.

  Although it is conceivable to provide the guide rib on the lower surface of the upper lid member 4b, it is not preferable because the formation of the guide rib may cause sink marks on the upper surface of the upper lid member 4b. In addition, since the lower surface of the upper lid member 4b has a concave curved surface shape, even if the lever spring 40 is bent upward, it is easy to return to the center portion, so there is a high possibility that there will be no inconvenience without the guide rib.

  The electric kettle of the present invention can suppress the generation of overturned water caused by the operation of the water stop valve at the time of falling, and can suppress the scattering of boiling water from the water stop valve at the time of falling through the steam port. It is useful as a portable electric kettle.

DESCRIPTION OF SYMBOLS 1 Kettle main body 2 Power supply stand 3 Handle 4 Lid 4a Lower lid member 4b Upper lid member 4c Inner lid 5 Hot water supply opening 6 Lid opening / closing operation lever 7 Hot water supply operation part 8 Steam discharge port 9 Switch operation member 10 Locking recess 11 Steam path connection Mouth 11
DESCRIPTION OF SYMBOLS 12 Water storage container 13 Exterior case 14 Heater 15 Pouring path 16 Hot water supply valve 17 Opening / closing mechanism 18 Steam passage 19 Boiling detection steam path 20 Boiling detection part 21 Detection chamber 24 First valve chamber 25 Second valve chamber 26 Weight member 27 First annular wall 28 Second annular wall 27a, 28a Notch 29 First ventilation portion 30 Second ventilation portion 31 Valve support member 33 Steam outlet hole 35 Water injection hole 36 Auxiliary wall 37 Auxiliary intermediate plate 38 Groove wall 38a Groove 39 Projecting engagement piece 39a Front end 40 Lever spring 41a Side guide rib 41b Lower guide rib 42 Intake passage wall 42

Claims (5)

A kettle body including a water reservoir with an open top and a heater arranged to heat the water in the water reservoir;
A handle provided on the outer shell of the kettle body;
A hot water outlet provided at the upper end of the kettle body opposite to the handle in the radial direction;
A lid that is detachably attached to the upper end of the kettle body, and closes or opens the opening of the water storage container;
A pouring path that is provided on the lid so as to communicate between the water storage container and the hot water supply port;
A steam passage provided to discharge the steam in the water storage container to the outside from a steam discharge port provided in the lid;
A boiling detector that detects boiling by contact with steam;
A boiling detection steam path for discharging the steam in the water storage container to the outside via the boiling detection unit;
A water stop valve device at the time of overturning disposed in the steam passage and the boiling detection steam passage, and closing the steam passage and the boiling detection steam passage in a state where the kettle body is overturned;
The electric water kettle characterized in that the water stop valve device at the time of falling is constituted by a pair of valves arranged on both sides of a line connecting the hot water supply port and the handle.   2. The electric kettle according to claim 1, wherein one of the pair of valves communicates only with the steam passage, and the other communicates only with the boiling detection steam path. The lid includes a lower lid member provided with a part of the steam passage and the boiling detection steam path, an upper lid member attached to cover an upper part of the lower lid member, and a lower surface of the lower lid member. An inner lid that covers and is mounted in the water storage container,
The inner lid is provided with a steam outlet hole that guides the steam in the water storage container to a space on the inner lid formed by the lower lid member,
A path is formed in which the steam guided to the space between the lower lid member and the inner lid reaches the steam path and the boiling detection steam path via the pair of valves,
The electric kettle according to claim 1, wherein the steam inlet is disposed at a position on an intermediate line between the pair of valves. The pair of valves are formed by partitioning a space between the lower lid member and the inner lid with a valve chamber wall, and a second valve communicating with the first valve chamber communicating with the vapor passage and the boiling detection vapor path. A valve chamber; and a weight member mounted in the first and second valve chambers, wherein the steam passage and the boiling detection steam path are caused by displacement of the weight member in the valve chamber according to an inclination of the kettle body. Configured to be closed to communication with
The valve chamber wall is provided with a notch for communicating the space between the lower lid member and the inner lid with the first and second valve chambers,
The first valve chamber and the second valve chamber have different horizontal orientations of the notches in the valve chamber wall, so that the steam introduced from the steam inlet port is the first valve chamber. The electric kettle according to claim 3, wherein the electric kettle is set so as to be easier to enter the second valve chamber than the chamber. The pair of valves are formed by partitioning a space between the lower lid member and the inner lid with a valve chamber wall, and a second valve communicating with the first valve chamber communicating with the vapor passage and the boiling detection vapor path. A valve chamber; and a weight member mounted in the first and second valve chambers, wherein the steam passage and the boiling detection steam path are caused by displacement of the weight member in the valve chamber according to an inclination of the kettle body. Configured to be closed to communication with
3. The electric kettle according to claim 2, wherein a path that reaches the steam discharge port from the first valve chamber via the steam passage is configured to be a path that bypasses a straight path.

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