JP2009125285A - Liquid container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress a liquid leak because of a deterioration of a sealing member. <P>SOLUTION: A liquid container (a pot 11) is provided with a body 12 in which an inner container 29 for storing liquid is arranged and a lid body 35 which is attached to the body 12 in an openable/closable manner. The lid body 35 is provided with the sealing member 74 which blocks the space between itself and the opening edge of the inner container 29. In this case, the lid body 35 is provided with an auxiliary sealing member 77 which is positioned on the periphery of the sealing member 74 and seals the space between itself and the upper end of the inner container 29. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a liquid container such as an electric pot or a thermos.

  Prior art document information relating to the liquid container of the present invention includes the following.

Japanese Patent Publication No. 6-65329 JP 2003-339542 A

  These Patent Documents 1 and 2 describe an electric pot that is a liquid container including a main body in which an inner container for storing liquid is disposed, and a heater for heating the liquid is disposed in the inner container. . In this electric pot, a lid that can be opened and closed is disposed at the upper end of the main body, and a sealing member that closes the upper end opening of the inner container is disposed on the lid.

  However, these liquid containers have a problem that when the seal member deteriorates with time, the liquid inside leaks when the seal member falls. In particular, as in each patent document, the liquid in the inner container is heated by the heater, because the temperature of the sealing member is increased by heat transfer through the inner container, and the liquid or superheated steam boiled to a high temperature is also used. Is attached to the seal member, and its deterioration is promoted. And there exists a malfunction which a high temperature liquid leaks by a fall.

  This invention is made | formed in view of the conventional problem, and makes it a subject to provide the liquid container which can suppress the liquid leakage by deterioration of a sealing member.

  In order to solve the above-described problems, a liquid container according to the present invention includes a main body in which an inner container for storing a liquid is disposed, and a lid attached to the main body so as to be openable and closable. In the liquid container in which the sealing member that closes the opening edge is disposed, the lid body is provided with an auxiliary sealing portion that is positioned on the outer peripheral portion of the sealing member and seals between the upper end of the inner container. It is configured.

  According to this liquid container, since the auxiliary seal portion is provided on the outer peripheral portion of the seal member, the liquid in the inner container is prevented from leaking to the outside even if the seal member falls down over time. it can. Further, since the auxiliary seal portion does not come into contact with superheated steam or high-temperature liquid by the primary seal by the seal member, it is possible to prevent deterioration due to physical contact. Therefore, the product life can be extended.

  In this liquid container, it is preferable that the auxiliary seal portion seals between a flange portion provided at an upper end of the inner container and projecting radially outward. In this way, it is not necessary to change the design of the product significantly, so it can be implemented at a low cost.

  Moreover, it is preferable that the said auxiliary | assistant seal | sticker part is what protruded a part of resin part which comprises the said cover body in the cylinder shape. If it does in this way, since the elastic repulsion by a sealing member can be prevented, the obstruction | occlusion work of a cover body will not become difficult.

  In the liquid container of the present invention, the liquid in the inner container can be prevented from leaking to the outside by the auxiliary seal part even if the seal member falls over while being deteriorated with time. Further, since the auxiliary seal portion is not deteriorated due to physical contact with superheated steam or high-temperature liquid, the product life can be extended.

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

  FIG. 1 shows an electric pot which is a liquid container according to the first embodiment of the present invention. This electric pot is of a non-microcomputer mounting type not equipped with a control board as well as a microcomputer as a control means, and includes a base 10 for power supply and a pot 11 detachably mounted on the base 10. Electric kettle provided.

  The base 10 is wired with a power cord (not shown) connected to a commercial power supply, and this power cord is connected to a power supply terminal (not shown).

  The pot 11 includes a pot body 12 that houses the inner container 29 therein, and a lid 35 that is attached to the pot body 12 so as to be opened and closed.

  The pot body 12 includes an exterior body having a cylindrical body 13 having an upper end and a lower end opened, and a bottom body 18 that closes the lower end opening of the body 13. The inner container 29 is fixed to the body 13, and an aluminum brazing heater 32 as a heating means, a connection terminal (not shown) for receiving power from the base 10, and an aluminum brazing heater. A switch (not shown) for turning on / off the current to the switch 32 and a link member 33 for switching the connection state of the switch are disposed.

  The body 13 includes a stepped portion 14 for fixing the inner container 29 to the upper portion. In addition, on the front side upper part of the body 13, a pouring part 15 that is inclined upward and bulges upward is provided so as to cover a lower part of a spout 43 of a water supply passage 44 described later. Further, a hinge connection portion 16 for rotatably mounting the lid 35 on the back side of the body 13 located on the opposite side in the radial direction with respect to the casting portion 15 is provided. As shown in FIGS. 1 and 2, a handle disposition recessed portion 17 that is recessed inward is provided on the back surface of the body 13 so as to be positioned below the hinge connecting portion 16 so as to extend in the vertical direction. Yes.

  The bottom body 18 has a saucer shape that is fitted and fixed to the lower end of the body 13. The bottom body 18 is provided with a through portion (not shown) through which the power supply terminal of the base 10 penetrates in the center. And in the assembly | attachment state to the trunk | drum 13, the power connection terminal fixed to the inner container 29 is located so that it may be located on this penetration part. Further, a through-hole 19 that communicates with the inside of the bottom body 18 so as to correspond to the handle disposition recessed portion 17 of the body 13 is provided on the back surface of the bottom body 18.

  A handle 20 disposed on the back of the body 13 and the bottom body 18 includes an inner member 21 and an outer member 22. In a state where the inner member 21 and the outer member 22 are assembled, an accommodating space having an arc shape is formed inside the grip portion 23, and the power switch member 24 and the operation of the power switch member 24 are operated in the accommodating space. An interlocking member 25 that interlocks with is disposed.

  The handle 20 is assembled to the body 13 and the bottom body 18 in a state in which a metal duct member 26 having a rectangular tube shape and a resin joint member 27 are disposed. The duct member 26 and the joint member 27 constitute a steam passage 28 having substantially the same cross-sectional area. The lower end opening of the vapor passage 28 faces the inside from the bottom body 18.

  The inner container 29 is made of stainless steel, and includes a cylindrical member joined so as to form a cylindrical shape, and a disk member that closes a lower end opening of the cylindrical member, and a bottomed cylinder integrally joined thereto. It is a shape. The upper portion of the inner container 29 is formed with a constricted portion 30 that is recessed inward, and this constricted portion 30 is also used as a full water level line. Further, a flange portion 31 protruding radially outward is provided at the upper end of the inner container 29, and the flange portion 31 is positioned and fixed to the step portion 14 of the body 13.

  The aluminum brazing heater 32 is for heating and boiling the water in the inner container 29, and joining the heater with powdered aluminum as a brazing material so as to be positioned on the outer periphery of the bottom surface of the inner container 29. It is arranged by.

  The link member 33 switches a contact of a switch for turning on / off the energization from the power connection terminal to the aluminum brazing heater 32, and the interlocking member 25 is connected to one end thereof. The link member 33 presses the upper portion of the power switch member 24 and is pushed down via the interlocking member 25 to turn on the switch.

  In the present embodiment, a bimetal switch 34 is disposed below the link member 33. The bimetal switch 34 reverses by raising the temperature to a predetermined temperature and pushes the link member 33 upward. The bimetal switch 34 is disposed in the vicinity of the opening end of the steam passage 28 and is heated by steam generated in the inner container 29 supplied through the steam passage 28. When the link member 33 is pushed up by reversing the bimetal switch 34, the power switch member 24 is displaced to the off position via the interlocking member 25.

  The lid body 35 includes a lid body 36 and a lid cover 68, and an inner lid 73 that closes the inner container 29 is disposed below the lid body 36. The lid 35 is provided with a lock member 70 that is detachably locked to the pot body 12. Further, a water supply passage 44 is provided on the front side, and a valve member 45 is provided in the water supply passage 44 and an operation member 50 for opening and closing the valve member 45 is provided. Further, an exhaust passage 63 is provided on the back side, and this exhaust passage 63 is branched and connected to the steam passage 28 provided in the pot body 12.

  First, as shown in FIGS. 1 and 3, the lid main body 36 is a disc-like one that is fitted to the upper end edge of the body 13, and the back side outer peripheral portion is pivoted to the hinge connection portion 16 of the body 13. A hinge receiving portion 37 to be worn is provided. The hinge receiving portion 37 is provided with a passage portion 38 that communicates with the steam passage 28.

  Further, in the center of the lid main body 36, an accommodating portion 39 that bulges upward and accommodates a bulging portion 79 of an inner lid 73 described later is provided. A water supply duct portion 40 that constitutes the water supply passage 44 is provided on the front side of the housing portion 39, and movable closing member arrangement portions 51 </ b> A and 51 </ b> B that constitute the exhaust passage 63 are disposed on the rear side of the housing portion 39. Is provided.

  The water supply duct portion 40 has a cylindrical shape protruding forward from the front side of the accommodating portion 39 so as to form an L shape. The water supply duct portion 40 is opened downward so as to face the upper end opening of the inner container 29, and this opening portion serves as a water supply passage inlet 41. The water supply duct portion 40 is provided with a nozzle member 42 that extends in the horizontal direction at the tip of the water supply duct 15 toward the pouring portion 15 of the body 13, and a spout 43 is formed by the tip opening of the nozzle member 42. And these water supply duct part 40 and the nozzle member 42 comprise the water supply channel | path 44 which pours out the water in an inner container.

  The valve member 45 that seals the water supply passage inlet 41 in an openable and closable manner includes an elliptical valve body 46, and an operation receiving portion 47 that protrudes in a rod shape is provided at one end thereof. The valve member 45 is energized in a closing direction for sealing the water supply passage inlet 41 by a spring 49 as an energizing means by disposing a receiving member 48 separate from the inner lid 73 on the lid body 36. Arranged in a state. The valve member 45 has an operation receiving portion 47 that protrudes upward through the lid main body 36, and the upper end of the valve member 45 is pressed downward by the operation member 50, so that the water supply passage inlet 41 is biased by the spring 49. It can be opened against.

  The movable closing member arrangement portions 51A and 51B are provided with a thick portion 52 having a circular shape in plan view so as to protrude integrally with the accommodation portion 39 on the rear side of the accommodation portion 39. An inverted truncated cone shape is provided so as to be recessed downward from the upper surface. In these movable closing member arrangement portions 51 </ b> A and 51 </ b> B, the surface located on the side of the accommodating portion 39 is opened, and the opening communicating with the accommodating portion 39 becomes the exhaust passage inlet 53.

  As shown in FIGS. 1 and 2, the movable closing member arrangement portions 51A and 51B accommodate movable closing members 54 and 54, respectively, and a connection member 55 constituting an exhaust passage 63 in the upper part. While the exhaust port member 60 is arrange | positioned, the baffle plate 65 is arrange | positioned in these.

  The movable closing members 54, 54 are made of metal having a truncated cone shape and constitute a hot water leakage prevention structure.

  The connecting member 55 has a disk shape that closes the thick portion 52. The connection member 55 is provided with a communication portion 56 that communicates the inside of the inner container 29 with the outside of the machine at a position corresponding to the movable closing member arrangement portion 51A. The communication portion 56 is formed with a diameter through which water can pass in order to ensure a sufficient exhaust capacity. In addition, an air vent 57 is provided at a position corresponding to the movable closing member disposition portion 51B. The air vent 57 has a smaller diameter than the communication portion 56, and when the air closing portion 54 is closed simultaneously with the communication portion 56 by the movable closing members 54, 54, the movable closing member 54 adsorbed to the air vent 57 first becomes easier. It is configured to drop off. Further, the connection member 55 of the present embodiment is provided with a baffle plate disposing recess 58 for disposing the baffle plate 65 so as to include the formation positions of the communication portion 56 and the air vent portion 57. Further, the connection member 55 is provided with a cylindrical steam passage connection portion 59 protruding downward.

  The exhaust port member 60 constitutes a downstream end portion of the exhaust passage 63 and has a long cylindrical shape extending in the front-rear direction. The upper end of the exhaust port member 60 is closed, and an exhaust port 61 composed of a plurality of slits is provided on the closed surface. In addition, the exhaust port member 60 is provided with a cover portion 62 that closes the upper end opening of the steam passage connection portion 59 while being fitted to the connection member 55.

  The connecting member 55 and the exhaust port member 60 are integrally assembled to the lid main body 36 so that the movable closing member disposing portions 51A and 51B, the connecting member 55 and the exhaust port member 60 are connected to each other in the inner container 29 and the outside of the machine. And an exhaust passage 63 configured to exhaust the steam generated in the inner container. Further, due to the fitting of the connection member 55 and the exhaust port member 60, the steam passage connection portion 59 is covered with the cover portion 62 to form one branch connection portion 64. The branch connection portion 64 is assembled to the lid main body 36, thereby penetrating the passage portion 38 of the lid main body 36 and branchingly connected to the duct member 26 of the steam passage 28.

  The baffle plate 65 is disposed inside the connection member 55 and the exhaust port member 60, suppresses (adjusts) the amount of steam exhausted from the exhaust port 61, and flows to the steam passage 28 via the branch connection portion 64. The amount of steam to be adjusted is adjusted. The baffle plate 65 has a box shape with the lower end opened, and a plurality of vent holes 66 through which the vapor passes are provided on the closing surface 65a at the upper end. Further, a steam diversion port 67 through which steam flows to the branch connection portion 64 is provided on the outer peripheral wall 65 b of the baffle plate 65.

  As shown in FIG. 1, the lid cover 68 constitutes an exterior surface covering the upper part from the hinge receiving portion 37 of the lid body 36 to the casting portion 15 of the assembled body 13 and has a shape like a part of a sphere. Make. An exposure hole 69 for exposing the lock member 70 is provided at the center front portion of the lid cover 68. The lock member 70 is rotatably attached to the lid cover 68, and by pressing the front side portion, a lock portion (not shown) is detached from the locked portion of the body 13 and can be opened. Further, an exposure hole 71 for exposing the operation member 50 for operating the valve member 45 is provided at the central top portion of the lid cover 68. Further, an exposure hole 72 for exposing the exhaust port member 60 of the exhaust passage is provided in the central rear portion of the lid cover 68.

  The inner lid 73 is for protecting the lid main body 36 and the like from superheated steam of water heated in the inner container 29 and high-temperature water droplets ejected at the time of boiling, and is made of a circular metal plate. The inner lid 73 is provided with a seal member 74 that seals the upper end opening of the inner container 29 on the outer periphery. The seal member 74 has an annular shape and includes an attachment portion 75 for sandwiching and attaching the outer peripheral portion of the inner lid 73 as shown in FIGS. 1 and 4. The mounting portion 75 is provided with a seal portion 76 that protrudes downward so that the outer diameter decreases toward the tip. The seal portion 76 has an outer diameter at the lower end portion smaller than an inner diameter of the upper end opening of the inner container 29, and an outer diameter of the upper end portion larger than an inner diameter of the upper end opening of the inner container 29. In the present embodiment, an auxiliary seal portion 77 is further provided on the outer peripheral portion of the seal portion 76 to seal between the flange portion 31 that is the upper end of the inner container 29. Similar to the seal portion 76, the auxiliary seal portion 77 is curved so that the outer diameter decreases toward the tip.

  Further, the inner lid 73 is provided with a mounting hole 78 having an oval shape extending in the left-right direction so as to be positioned substantially at the center, and a separate bulging portion 79 is disposed in the mounting hole 78. The upper end of the bulging portion 79 is closed, and a plurality of vent holes 80 are provided on the closed surface. Further, the inner lid 73 is provided with a concave portion 81 that is recessed downward at a position corresponding to the valve member 45 disposed in the lid main body 36, and a plurality of water passage holes 82 are provided in the concave portion 81.

  In this embodiment, a net-like filter member 83 is disposed in the recess 81. This filter member 83 prevents calcium accumulated in the inner container 29 from being poured out through the water supply passage 44, and an elastic semi-elliptical wire connection is formed in a linear slit formed in the recess 81. By inserting the part, it can be attached and detached.

  When the electric pot is used, a predetermined amount of water is accommodated in the state where the lid 35 is opened and the inner container 29 is opened. When the pot 11 is placed on the base 10 and the aluminum brazing heater 32 is turned on by operating the power switch member 24, the water in the inner container 29 is heated.

  And when it will be in the state of substantially boiling, a vapor | steam will generate | occur | produce in the inner container 29. FIG. The superheated steam is prevented from flowing out from the open end of the inner container 29 by the seal portion 76 of the seal member 74. As a result, the generated steam passes through the bulging portion 79 and then flows into the exhaust passage 63 from the exhaust passage inlet 53 positioned below the vent hole 80 of the bulging portion 79.

  Then, the steam flows into the baffle plate 65 from the movable closing member arrangement portions 51A and 51B through the substantially communicating portion 56, and the flow into the exhaust port member 60 is obstructed by the blocking surface 65a of the baffle plate 65. Is done. As a result, the flow is divided into a portion that passes through the vent hole 80 and a remaining portion that cannot pass through the vapor diversion port 67 and flows into the branch connection portion 64.

  A part of the steam that has passed through the vent hole 66 flows into the exhaust port member 60 and is exhausted to the outside through the exhaust port 61 at the upper end. In addition, the remainder that has been diverted from the steam diversion port 67 to the branch connection portion 64 is supplied between the inner container 29 and the bottom body 18 through the steam passage 28, hits the bimetal switch 34, and then enters the bottom body 18. It drains to the outside from the drainage hole (not shown) formed. When the temperature of the bimetal switch 34 is increased by the jet of steam, the energization of the aluminum brazing heater 32 is interrupted by pushing up the link member 33 as described above.

  The hot water boiled in this way is operated with the operation member 50 and the valve member 45 opens the water supply passage inlet 41, and the spout 43 located on the opposite side in the radial direction by holding the handle 20 is directed downward. By tilting so as to tilt, the water can be poured out from the spout 43 through the water supply passage 44.

  At this time, the boiling hot water is prevented from flowing out from the opening end of the inner container 29 by the seal portion 76 of the seal member 74. As a result, after passing through the water passage hole 82, the hot water flows into the water supply passage 44 from the opened water supply passage inlet 41 and is poured out from the spout 43.

  Thus, the electric pot of this embodiment can prevent the superheated steam and high-temperature hot water generated in the inner container 29 by the sealing member 74 from flowing out from the open end of the inner container 29. However, the seal portion 76 deteriorates with time as in the conventional case. In addition, the temperature is raised by heat transfer through the inner container 29 during heating, and the liquid or superheated steam boiled to a high temperature adheres, so that deterioration is accelerated.

  However, in the present embodiment, since the different auxiliary seal portions 77 are provided on the outer peripheral portion of the seal portion 76, even if the seal portion 76 falls down with deterioration over time, the auxiliary seal portion 77 causes steam or hot water to fall. (Liquid) can be prevented from flowing out. The auxiliary seal portion 77 can be prevented from being deteriorated because the superheated steam and the high-temperature liquid are not always touched by the primary seal by the seal portion 76. Therefore, safety can be sufficiently improved and the product life can be extended.

  In addition, in the present embodiment, the auxiliary seal portion 77 is integrally provided on the seal member 74 and the auxiliary seal portion 77 is sealed by being pressed against the flange portion 31 of the inner container 29. No design change is required, and it can be implemented at low cost.

  5 and 6 show an electric pot according to the second embodiment. The second embodiment is largely different from the first embodiment in that the auxiliary seal portion 84 is provided on the lid body 36. Specifically, the lid main body 36 of the second embodiment has an outer diameter that is smaller than the outer diameter of the flange portion 31 of the inner container 29 and larger than the inner diameter. The auxiliary seal portion 84 is projected so as to make it. The auxiliary seal portion 84 has a gap (approximately 0. 0 mm) between the lower end edge serving as the seal portion and the flange portion 31 due to the action of surface tension in a state where the pot body 12 is closed with the lid body 35. 5 mm) is formed.

  In the electric pot configured as described above, the auxiliary seal portion 84 is provided integrally with the lid main body 36, so that it is possible to prevent elastic repulsion from occurring when the lid 35 is closed. In addition, since a predetermined gap is formed between the resin auxiliary seal portion 84 and the flange portion 31, it is possible to prevent obstruction of the lid body 35 with respect to the pot body 12. However, due to this gap, the outflow of superheated steam and hot water cannot be completely prevented, but since it is an auxiliary seal to the last, there is no problem in actual use. Substantially similar actions and effects can be obtained. On the other hand, when the user opens the lid 35, a slight water pool is generated, so that the user can be notified of the deterioration of the seal member 74.

  FIG. 7 shows an electric pot according to the third embodiment. In the third embodiment, as in the second embodiment, the auxiliary seal portion 84 is provided on the lid body 36, while the step portion 85 that contacts the auxiliary seal portion 84 is provided on the inner container 29. It is different from the form. The step portion 85 is provided with a protruding portion 86 so as to form a substantially convex shape from the flange portion 31 of the inner container 29, and is constituted by the outer peripheral surface of the protruding portion 86.

  In the electric pot configured as described above, as shown in the figure, the protruding amount of the auxiliary seal portion 84 can be shortened and the gap with the flange portion 31 can be increased as compared with the second embodiment. In addition, the auxiliary seal is performed on the inner peripheral surface of the auxiliary seal portion 84 and the surface of the stepped portion 14, and the fluid resistance can be increased by the shape of repeated bending, so that the sealing performance can be improved. And it can prevent reliably that the obstruction | occlusion operation | work of the cover body 35 is obstructed by being able to enlarge the clearance gap between the auxiliary seal part 84 and the flange part 31. FIG.

  The liquid container of the present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

  For example, in each of the above embodiments, one auxiliary seal portion 77, 84 is provided on the outer peripheral portion of the main (primary) seal portion 76 formed on the seal member 74, but two or more auxiliary seal portions 77, 84 are provided. May be.

  Moreover, in the said embodiment, although demonstrated as an example the electric pot which heats the liquid in the inner container 29 as a liquid container of this invention, you may apply to a humidifier and a thermos bottle, and the upper end opening of the inner container 29 is formed. Any liquid container that is closed by the lid 35 can be similarly applied.

It is sectional drawing which shows the electric pot which is a liquid container which concerns on 1st Embodiment of this invention. It is a disassembled perspective view of an electric pot. It is a disassembled perspective view which shows the inner side of a cover body. It is a principal part expanded sectional view of FIG. It is sectional drawing which shows the electric pot of 2nd Embodiment. It is a principal part expanded sectional view of FIG. It is a principal part expanded sectional view of the electric pot of 3rd Embodiment.

Explanation of symbols

10 ... Base 11 ... Pot (liquid container)
DESCRIPTION OF SYMBOLS 12 ... Pot main body 29 ... Inner container 31 ... Flange part 35 ... Lid body 36 ... Lid main body 73 ... Inner lid 74 ... Seal member 76 ... Seal part 77 ... Auxiliary seal part 84 ... Auxiliary seal part 85 ... Step part

Claims (3)

A main body in which an inner container for storing liquid is disposed, and a lid attached to the main body so as to be openable and closable are provided, and a sealing member is disposed on the lid so as to close the opening edge of the inner container. In the liquid container,
The liquid container according to claim 1, wherein an auxiliary seal portion is provided on the outer peripheral portion of the sealing member and seals between the upper end of the inner container.   2. The liquid container according to claim 1, wherein the auxiliary seal portion seals between a radially outwardly projecting flange portion provided at an upper end of the inner container.   3. The liquid container according to claim 1, wherein the auxiliary seal portion is formed by projecting a part of a resin component constituting the lid in a cylindrical shape.

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