JPH1146974A - Heat reserving pot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain good demountability and mountability of a steam port and to keep good utility thereof. SOLUTION: When an upper member 52 is rotated and engaged with a lower member 51, a protrusion 79 of an outer convex part 71 gets over a protrusion of an inner convex part on the way and the completion of clamping can be confirmed by a click feeling. Further, even if the clamping of the lower member 51 and the upper member 52 becomes looser, the protrusion of the inner convex part is caught by the protrusion 79 of the outer convex part 71, and the upper member 52 is not separated. This effect of preventing the looseness is due to the protrusion 79 disposed in the vertical direction, and even if the size in the horizontal direction of a steam port 41 is varied, the engagement of the lower member 51 and the upper member 52 is not obstructed. Further, the engagement is not at all obstructed by variation of the size in the height direction of the steam port 41 in some degree. Consequently, even if the engaging size of the lower member 51 and the upper member 52 is varied in some degree, the demountability and mountability of the steam port 41 are not spoiled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated kettle having a structure in which a steam port is attached to and detached from an upper side of a lid body.

[0002]

This type of heat insulation pot has a lid for covering an upper opening of a main body, and a steam port for discharging steam generated from a pot inside the main body to the outside of the main body. However, the configuration in which the steam port is attached and detached from the upper side of the lid upper surface is excellent in practicality because the steam port can be attached and detached without opening the lid from the main body, and its use is increasing in recent years. ing. Further, there is an increasing number of devices in which the steam port is disassembled into a bottomed cylindrical lower member and an upper member that covers the same from above so that the inside of the steam port can be easily cleaned.

[0003] In such a structure, the ease of disassembling and assembling the steam port is an important issue for further improving the practicality, but the steam port is formed of a thermoplastic plastic such as polypropylene. In the case of shrinkage or deformation during injection molding, as the use progresses, post-shrinkage or deformation proceeds due to the effect of steam passing through the steam port, and the fitting dimension between the lower member and the upper member increases. Due to the change, there is a problem that the decomposability of the steam port and the mountability at the time of assembly are deteriorated.

Accordingly, the present invention has been made in view of the above problems, and has been developed in consideration of dimensional variations and shrinkage and deformation during use.
It is an object of the present invention to provide an insulated pot in which the decomposability and mounting properties of the steam port are well maintained and the practicality is well maintained.

[0005]

According to a first aspect of the present invention, in order to attain the above object, the heat generating kettle has a cover for covering an upper portion of the main body, and the steam generated inside the main body is covered with the steam. A steam port for discharging to the outside is detachably provided, and the steam port is constituted by a combination of at least a lower member having a bottomed container and an upper member covering an upper opening of the lower member. The outer convex portion provided on the periphery and the inner convex portion provided on the inner periphery of the upper member so as to be engaged with the lower side of the outer convex portion, the upper convex portion, A member is rotatably fitted to the lower member, and near the locking portion between the outer convex portion and the inner convex portion, after the upper member is engaged with the lower member, the detachment of the upper member is performed. The suppressing projection is provided on the lower surface of the outer convex portion and the upper surface of the inner convex portion.

According to the first aspect of the invention, when the upper member is rotatably fitted to the lower member, if the inner convex portion of the upper member is engaged with the lower side of the outer convex portion of the lower member, the middle portion is formed. The protrusion on the lower surface of the outer convex portion can get over the protrusion on the upper surface of the inner convex portion, and the tightening of both can be confirmed with a click. Further, even if the tightening of the lower member and the upper member is loosened during use, the protrusion of the inner convex portion is caught by the protrusion of the outer convex portion, and an effect of suppressing the detachment of the upper member can be obtained. In addition, this locking effect
Since the lower and upper members constituting the steam port are formed by protrusions provided in the vertical direction, even if the horizontal dimension of the steam port changes due to dimensional variation of the steam port, the lower member and the upper member There is no hindrance to the fit with the. In addition, even if the dimension of the steam port in the height direction is slightly changed, only the locking position between the outer protrusion of the lower member and the inner protrusion of the upper member is changed, and the fitting property between the lower member and the upper member is changed. Has no trouble. Therefore,
As the use progresses, even if the fitting dimension between the lower member and the upper member slightly changes, the disassembly of the steam port and the ease of attachment during assembly are maintained without deterioration, and good practicality is achieved. can do.

[0007] Further, according to a second aspect of the present invention,
In addition to the configuration according to claim 1, an uneven display indicating a direction in which the upper member and the lower member are separated and mounted on the outer surface of the steam port, facing the steam port mounting portion of the lid. A part is formed.

According to the second aspect of the present invention, the display section is provided on the outer surface of the steam port, and when the steam port is mounted on the steam port mounting section, the display section faces the steam port mounting section to the outside. Since it is no longer exposed, good appearance during normal use is maintained. Further, since the display section can be visually recognized only when the steam port is removed from the steam port mounting portion, it is possible to prevent the lower member and the upper member from being disassembled while the steam port is mounted on the lid, thereby preventing erroneous use.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. In FIG. 1, which is an overall sectional view of the heat retaining pot,
Reference numeral 1 denotes a main body. The main body 1 includes a substantially cylindrical outer frame 2, a bottom plate 3 covering an opening on the lower surface thereof, and a bottomed cylindrical inner frame 4 serving as a pan accommodating portion provided in the outer frame 2. Have. The inner frame 4 is made of an aluminum material having a high infrared emissivity.
Reference numeral 5 denotes a rotatable handle for carrying the main body 1.

Reference numeral 6 denotes a pot mainly composed of aluminum, and the pot 6 has a bottomed cylindrical shape with an open upper surface. The pot 6 accommodates rice and water to be cooked therein and is removably accommodated in the inner frame 4.
The pan 6 has a pan flange 7 formed around the upper end thereof and a flange 8 formed around the upper end of the inner frame 4.
It is supported in a suspended state by being placed on top.

On the bottom surface of the inner frame 4, a radiant heating type rice cooker 11 including a sheath heater as a heating means for heating the pan 6 is fixed via an insulator 12. This rice cooker 11 has a single or double circular or spiral shape,
It is provided in a state separated from the inner frame 4. On the other hand, a body heater 13 composed of a cord heater or the like, which is a heating means for keeping the temperature of the inner frame 4, is provided above the outer surface of the inner frame 4. At the center of the bottom of the inner frame 4, a pan sensor 14 that contacts the outer bottom surface of the pan 6 is provided so as to be vertically movable and urged upward. Although not shown, the pan sensor 14 has a built-in negative characteristic thermistor for detecting the outer surface temperature of the pan 6. Further, the pan sensor 14 is connected to the bottom plate 3
When the pan 6 is accommodated in the inner frame 4, the switch lever 15 is lowered in conjunction with the pan sensor 14 by the weight of the pan 6, By operating the on / off lever 17 of the pan switch 16, a pan presence signal is generated from the pan switch 16.

Reference numeral 21 denotes a cord reel for winding a power cord (not shown), which is provided at the rear of the lower surface of the main body 1. A power supply board is provided at the front of the main body 1.
22 and a display board 23 are held and provided by a unit case 24 serving as a holding member. At a predetermined position of the display board 23, in addition to the display LCD 25 and the LED 26, various operation switches (not shown) for operation are provided. Is mounted. The outer frame 2
An operation panel 27 for displaying and operating is provided on the front of the device.

Reference numeral 31 denotes a lid provided so as to cover the upper part of the main body 1. The lid 31 includes an outer lid 32 made of a thermoplastic plastic such as polypropylene, which forms an upper shell of the lid 31, an inner lid cover 33 fixed to a lower peripheral portion of the outer lid 32, and an inner lid cover. It is generally constituted by a lid lower surface member 34 made of an aluminum material fixed to the inside of the cover 33. Among them, the upper surface of the lid 31, that is, the upper surface of the outer lid 32 has a three-dimensional shape, and is formed in an arbitrary design.
Further, the lid lower surface member 34 forms the lower surface of the lid 31, and faces and covers the upper opening of the pot 6. An inner space 35 of the lid 31 is formed between the upper lid 32 and the lid lower surface member 34.

The lid 31 is rotatably supported at the rear by a hinge shaft 36 at the rear of the main body 1 and is urged by a hinge spring 37 in the opening direction.
When the clamp 38 provided on the upper front part of the main body 1 is pushed, the engagement between the clamp 38 and the lid 31 is released,
The lid 31 is configured to automatically open from a closed state. Further, on the back surface, that is, the upper surface of the lid lower surface member 34, a lid heater 39 including a cord heater or the like as a lid heating means for heating the lid lower surface member 34 is provided. This lid heater
Reference numeral 39 denotes an electric parallel circuit with the body heater 13. Further, a lid packing 40 is provided between the inner lid cover 33 and the lid lower plate 25. This lid packing 40
Is to come into contact with the pot flange 7 of the pot 6 when the lid 31 is closed.

The upper surface of the lid 31 is formed in a gentle dome shape. The top of the lid 31 communicates from the lower surface of the lid 31 to the upper surface to allow steam generated in the pan 6 in the main body 1 to pass through. A vapor port 41 is provided so as to be attached or detached from above the lid 31 in the vertical direction. The steam port 41 is located at a position slightly behind the center of the inner diameter of the upper opening of the pot 6. Next, the configuration of the steam port 41 will be described with reference to FIGS.
This will be described in detail by adding 2. The lid lower surface member 34 is formed with an opening 42 whose end surface is turned upside. On the other hand, the outer lid 31 is integrally formed with a fitting recess 43 having a diameter of about 60 mm and opening upward. The fitting recess 43 is
It extends downward from the upper surface of 31, and at the bottom center,
An opening 44 facing the opening 42 of the lid lower surface member 34 is formed. Then, around these openings 42 and 44,
An annular vapor port packing 45 made of an elastic member such as silicone rubber is interposed between the upper surface of the lid lower surface member 34 and the lower end of the fitting concave portion 43 for hermetic sealing. The steam port packing 45 has an outwardly protruding seal portion 46 that closes a gap between the periphery of the opening 42 of the lid lower surface member 34 and the lower end of the fitting recess 43 of the outer lid 32, and a lower central portion of the steam port packing 45. A steam inlet 47 from the inside of the pot 6 formed in the opening 6 to the steam inlet 41, and an engaging projection 48 above the steam inlet 47 and closely engaged with the opening 44 of the fitting recess 43. It is composed of The elastically deformable engaging projection 48 has a flange-shaped projection toward the center of the steam port packing 45. A step 49 is formed on the upper part of the fitting recess 43 so as to increase the diameter of the fitting recess 43.

The steam port 41 comprises a combination of a lower member 51 removably accommodated in a fitting recess 43 of the outer lid 31 and an upper member 52 covering an upper opening of the lower member 51. Each of the lower member 51 and the upper member 52 is formed of a plastic material having excellent steam resistance, such as polypropylene. Lower and lower members of the upper member 52 constituting the steam port 41
The upper side of 51 is configured to be fitted and engaged with each other by a clockwise rotation operation, and disengaged from each other by a counterclockwise rotation operation to release the fit. In addition, when the steam port 41 is mounted, the upper surface of the upper member 52 that is exposed together with the outer surface of the lid 31 has a planar outer shape (a planar shape when viewed from above) formed in a circular shape without irregularities, that is, a round shape. .

The lower member 51 is formed in the shape of a bottomed container having an open upper part, and a cylindrical protrusion 53 extending downward is formed at the center of the outer bottom surface. , A pair of left and right projections that engage with the engagement projections 48 of the steam port packing 45
54 are formed. The shape and number of the projections 54 are not particularly limited. In short, when attaching / detaching the steam port 41, the convex portion 54 of the lower member 51 may be engaged / disengaged with the engaging projection 48 by utilizing the elastic deformation of the steam port packing 45. An outer surface of the lower member 51 has a bowl portion 55 for containing the forgery (melted water of starch) contained in the steam when the steam is released from the steam port 41,
It is formed by a cylindrical portion 56 having a slightly larger diameter continuously formed on the upper portion of 55. The bowl 55 has a shape substantially along the inner surface of the fitting recess 43 in order to increase the capacity of the steam port 41 as much as possible. Then, when the steam port 41 is vertically inserted into the fitting recess 43 from above the lid 31, the engaging projection 48 of the steam port packing 45 is pressed by the projection 54 of the lower member 51 and elastically deforms,
Eventually, the projection 54 of the lower member 51 rides over the engagement projection 48 and engages with each other, whereby the fitting recess 43 of the lid 31 is formed.
The inside is provided with a steam port 41.

A pipe 57 having a slightly smaller diameter than the protruding portion 53 is formed to protrude upward in the bowl portion 55 constituting the lower member 51. A bottom return hole 58 is formed at the bottom of the bowl portion 55 located on the outer peripheral side of the pipe 57, and a steam valve 59 for opening and closing the upper opening of the pipe 57 is provided at the upper opening of the pipe 57. It is assembled so that it can move up and down by force. That is, the pipe 57 is prevented from falling off by the stopper projection 60 formed on the lower surface of the steam valve 59 and the stopper claw 61 formed on the upper end of the inner peripheral surface of the pipe 57. The projecting portion 53 and the pipe 57 communicate with each other and are provided in the vertical direction of the steam port 41. When the steam valve 59 is opened, the steam passes through the projecting portion 53 and the pipe 57 and the steam flows through the lower member 51. To invade.

The cap-shaped upper member 52 forms the upper portion of the steam port 41, is detachably connected to the cylindrical portion 56 of the lower member 51, and when the steam port 41 is mounted, the outer lid 32 is closed.
Is formed so as to cover the step portion 49 of FIG. On the upper surface of the upper member 52, a plurality of, for example, four slit-shaped vapor discharge holes 62 are formed in concentric circles, and the vapor from the inside of the vapor port 41 passing through the vapor discharge holes 62 is supplied to the lid 31. It is configured to be released to the outside. For example, the upper member 52 has an upper surface having a thickness of 2 mm and a vapor discharge hole 62 having a width of 2.5 mm and a length of 25 mm.
mm. The total opening area of these steam discharge holes 62 is larger than the opening area of the pipe 57 having an inner diameter of about 3 to 11 mm. A chamfered portion 63 made of a 1.5 mm C-plane cut is formed at a lower corner around each of the steam discharge holes 62 in order to prevent dew condensation of steam during cooking. Also, at the upper corner around the steam discharge hole 62, a C that intersects with the lower chamfer 63 to prevent condensation of steam during cooking.
A chamfer 64 made of a surface cut is formed. Further, a cylindrical obstacle wall 65 is formed on the lower surface of the upper member 52 so as to project outside the pipe 57 and on the inner peripheral side of the vapor discharge hole 62.

Next, the structure in which the lower member 51 and the upper member 52 are detachably fitted will be described in detail. On the outer surface of the cylindrical portion 56 located at the upper part of the outer periphery of the lower member 51, an outer convex portion 71 provided to extend outward in a substantially horizontal direction is formed as a fitting means for the upper member 52. You. In addition, the outer surface of the lower member 51 is bent at the inner side surface of the cylindrical vertical rib 72 which is bent downward from the outer peripheral portion of the upper member 52 and forms the outer side surface of the upper member 52, that is, at the lower portion of the inner periphery of the upper member 52. So as to engage with the lower side of the convex portion 71,
An inner convex portion 73 provided to extend inward in a substantially horizontal direction is formed as a means for fitting to the lower member 51. Outer convex part of lower member 51
Four 71s are arranged at equal intervals and in parallel on the outer peripheral surface of the cylindrical portion 56, each of which has a leftwardly inclined portion 75. Further, the inner convex portion 73 of the upper member 52 is also the outer convex portion of the lower member 51.
Four are provided at equal intervals corresponding to 71. The height of each outer convex portion 71 is, for example, about 2.5 mm, and the inner convex portion 73 is formed in an elongated shape having an arc-shaped tip edge, a width of about 10 mm and a length of about 2 mm. The end of each outer projection 71 is substantially coincident with the starting end of the adjacent outer projection 71 in the circumferential direction. In the meantime, the upper member 52 is rotated with respect to the lower member 51 so that both are fitted or fitted. At the time of separation, the inner convex portion 73 is smoothly slid so that the inner convex portion 73 of the upper member 52 is naturally guided between the upper side of the right inclined portion 75 and the lower side of the left inclined portion 75. Movable guide 76
Are respectively formed.

On the upper surface of each inner convex portion 73 of the upper member 52, a projection 78 that can contact the lower surface of the inclined portion 75 of the outer convex portion 71 is integrally formed. Further, on the lower surface of the inclined portion 75 of the outer convex portion 71, near the locking portion where the inner convex portion 73 of the upper member 52 contacts and locks,
When the upper member 52 is rotationally fitted to the lower member 51 by an external force, a projection 79 is formed so that the projection 78 can get over. That is, in the vicinity of the locking portion between the outer convex portion 71 and the inner convex portion 73,
After engaging the upper member 52 with the lower member 51, projections 78 and 79 for preventing the upper member 52 from coming off are provided on the lower surface of the outer convex portion 71 and the upper surface of the inner convex portion 73.

Longitudinal rib of upper member 52 forming the outer surface of steam port 41
72 has, for example, steam outlets 41 such as
A display section 81 is formed to indicate the direction in which the lower member 51 and the upper member 52 are separated and mounted. It is preferable that the display portion 81 is formed in a concavo-convex shape at the same time as the other portions of the upper member 52 at the time of manufacturing. In this way, the vertical ribs 72 on the outer side, which are also gripping portions of the steam port 41, are less likely to slip due to the uneven display portion 81, and there is an advantage that the steam port 41 can be easily separated and mounted. Also, unlike the display portion formed by printing, the display portion does not dissolve in water or the like, and can maintain its function semipermanently.
When the steam port 41 is attached to the lid 31, the display 81
As long as it faces the fitting recess 43 which is the steam port mounting portion of the 31, it may be formed not only on the outer surface of the upper member 52 but also on the outer surface of the lower member 51. In any case, when the vapor port 41 is attached to the lid 31, the display portion 81 faces the fitting concave portion 43 and cannot be visually recognized, so that good appearance during normal use is maintained. Further, the display section 81 can be visually recognized only when the steam port 41 is removed from the fitting concave portion 43 of the lid 31, so that the steam port 41 is
In this state, the lower member 51 and the upper member 52 can be prevented from being disassembled and misused.

A flat seal portion 82 is formed on the upper peripheral surface of the upper opening of the lower member 51. A peripheral portion of the lower surface of the upper wall of the upper member 52 is a seal portion 83 against which the seal portion 82 of the lower member 51 is pressed. The vapor discharge hole 62 is located near the seal portion 83. Then, in order to connect the lower member 51 and the upper member 52, while turning the upper member 52 clockwise according to the instruction of the display unit 81, the inner convex portion 73 of the upper member 52 is Just hook and tighten. that time,
The lower part of the lower member 51 is formed by the lower part of the sloping part 75 of the helically inclined outer convex part 71 and the upper part of the inner convex part 73 contacting and pressing in the vertical direction.
The seal portion 82 and the seal portion 83 of the upper member 52 are pressed against each other in the vertical direction. Thereby, the lower member 51 and the upper member 52 are hermetically sealed, and the leakage of steam from the gap between the lower member 51 and the upper member 52 is suppressed. The shape of the seal portions 82 and 83 may be a tapered surface or a shape in which the seal portions 82 and 83 engage with each other, but are more preferably flat.

Next, the operation of the above configuration will be described. The steam generated in the pot 6 during the rice cooking passes through the steam inlet port 47 of the steam port packing 45 and the pipe 57 through the steam inlet port 47 of the steam port packing 45 together with the starch, which is the dissolved water of the starch. I do. The steam pushes up the steam valve 59 by the pressure, and the lower member is opened from the opened upper portion of the pipe 57.
Get inside 51. Here, the steam and the ash are separated, and the ash having a large specific gravity is accommodated in the bowl 55 of the lower member 51, while the steam is discharged to the outside through the steam discharge holes 62 of the upper member 52. Then, when the rice cooks, the pot 6
When the pressure in the inside is reduced, the rice stored in the bowl portion 55 of the lower member 51 is returned to the pot 6 through the rice return hole 58. At the same time, the steam valve 59 goes down and the pipe 57
The outlet at the top of the is sealed to prevent heat release. This allows dew to form on this part during warming, and
To prevent dew from falling on the rice inside.

To clean the dirty steam port 41, a finger is put on the vertical rib 72 forming the outer surface of the upper member 52, and the upper member 52 is lifted upward. 48
Is pressed by the convex portion 54 of the lower member 51 and elastically deforms, and the convex portion 54 of the lower member 51 rides over the engaging projection 48 to release the engagement between the two. Thus, the steam port 41 can be removed from the fitting recess 43 of the lid 31 to the outside of the lid 31 in a state where the upper member 52 is mounted on the lower member 51. Then, according to the instructions on the display unit 81,
Turning the upper member 52 counterclockwise as viewed from above with respect to the lower member 51,
The projection 78 of the inner projection 73 rides over the projection 79 of the outer projection 71, and the engagement between the lower side of the inclined portion 75 of the outer projection 71 and the upper side of the inner projection 73 is released. Thus, by separating the upper member 52 from the lower member 51, the inside of the lower member 51 can be easily washed. After cleaning, while turning the upper member 52 clockwise in accordance with the instruction of the display unit 81, the lower side of the inclined portion 75 of the outer convex portion 71 and the upper side of the inner convex portion 73 are engaged, and the lower member 51 and the upper member 52 To join. During this process, the projection 78 of the inner projection 73 gets over the projection 79 of the outer projection 71, so that the fastening of the lower member 51 and the upper member 52 at the time of joining, ie, fitting, can be confirmed with a click. Also, the lower member 51
Even if the tightening of the upper member 52 and the upper member 52 is loosened during use, the protrusion 78 of the inner protrusion 73 is caught by the protrusion 79 of the outer protrusion 71 and does not come off. When the lower member 51 and the upper member 52 are fitted, as described above, the seal portion 82 of the lower member 51 and the upper member
Since the sealing portions 83 of the 52 are pressed against each other in the vertical direction, the lower member 51 and the upper member 52 are sealed. Further, the steam port 41 in which the upper member 52 is attached to the lower member 51 in this manner is
Vertically inserted into the fitting recess 43 from above the lower member
The projection 54 of the 51 is engaged with the engagement projection 48 of the steam port packing 45, and the steam port 41 is mounted in the fitting recess 43.

As described above, in this embodiment, the lid 31 that covers the upper part of the main body 1 is detachably provided with the vapor port 41 for discharging the vapor generated inside the main body 1 to the outside of the main body 1. The steam port 41 has at least a bottom member 51 having a bottomed container shape,
An outer convex portion that is formed in combination with an upper member 52 that covers an upper opening portion of the lower member 51 and that extends outwardly provided around an outer periphery of the lower member 51.
71 and the upper member 52 so as to be locked below the outer convex portion 71.
The upper member 52 is rotatably fitted to the lower member 51 by the inner convex portion 73 extending inward provided on the inner periphery of the outer peripheral portion, and the vicinity of the locking portion between the outer convex portion 71 and the inner convex portion 73 is After the upper member 52 is engaged with the lower member 51, the projections 78 and 79 for suppressing the detachment of the upper member 52 are provided on the upper surface of the inner convex portion 73 and the lower surface of the outer convex portion 71. When rotationally fitted to the lower member 51, the inner convex portion of the upper member 52
When the 73 is engaged with the lower side of the outer convex portion 71 of the lower member 51, the projection 79 on the lower surface of the outer convex portion 71 rides over the protrusion 78 on the upper surface of the inner convex portion 73 on the way, completing the tightening of both. You can confirm it with a click. Further, even if the tightening of the lower member 51 and the upper member 52 is loosened during use, the protrusion 78 of the inner protrusion 73 is caught by the protrusion 79 of the outer protrusion 71, and the detachment suppressing effect of the upper member 52 can be obtained. it can. Further, since the effect of preventing the loosening is due to the projections 78 and 79 provided in the vertical direction with respect to the lower member 51 and the upper member 52 constituting the steam port 41, the steam port 41 has a dimensional variation. Does not hinder the fitting of the lower member 51 and the upper member 52. In addition, even if the dimension of the steam port 41 in the height direction slightly changes, only the locking position between the outer convex portion 71 of the lower member 51 and the inner convex portion 73 of the upper member 52 changes, and the lower member 51 and the upper There is no problem with the fitting property with the member 52. Therefore, as the use proceeds, the post-shrinkage or the deformation progresses due to the effect of the steam passing through the inside of the steam port 41, and the lower member 51 and the upper member 52
Even if the fitting dimension changes slightly, the decomposability of the steam port 41 and the mountability at the time of assembly are not deteriorated and are maintained well, and the practicality can be improved.

In this embodiment, in the above configuration,
A concave-convex display portion 81 is formed on the outer surface of the steam port 41 to indicate the direction in which the upper member 52 and the lower member 51 are separated and mounted, facing the fitting recess 43 which is the steam port mounting portion of the lid 31. doing. That is, when the display section 81 is provided on the outer surface of the steam port 41 and the steam port 41 is attached to the fitting recess 43, the display section 81 is
, And is not exposed to the outside, so that the appearance during normal use can be kept good. In addition, since the display portion 81 can be visually recognized only when the steam port 41 is removed from the fitting concave portion 43, the lower member 51 and the upper member 52 are disassembled while the steam port 41 is attached to the lid 31. Can be prevented.

Further, the effects of the other embodiments are as follows.
At the top of the upper surface of the lid 31 having a three-dimensional shape, there is a steam port 41 mounted vertically from above the lid 31, and this steam port is provided.
41 includes a bottom member 51 having a bottomed container shape, and a rotatable fitting upper member 52 covering an upper opening of the lower member 51.
The planar outer shape of the upper surface of 52 is formed in a round shape. in this case,
The steam port 41 can be attached and detached without opening the lid 31, so that the conventional practicality can be utilized as it is. Further, even if the direction of the upper surface of the steam port 41 is eliminated, the upper surface of the lid 31 around the upper surface of the steam port 41 is
The concave portion of the steam port 41 does not partially become uneven with respect to the upper surface of the lid, without impairing the three-dimensional shape design of the lid 31.
At the time of mounting on the 43, it is possible to make a configuration that has no mounting directionality. In addition, since the upper member 52 and the lower member 51 of the steam port 41 are fitted by rotation, the disassembly property and the mounting property during assembly are good. In addition, there is no direction at the time of assembling, and there is no need to provide a guide (such as a convex portion) at the time of assembling necessary when there is direction, and the appearance is not impaired. In addition, since the steam port 41 can be attached to and detached from the lid 31 in the vertical direction, the steam port 41 can be easily removed by simply lifting the steam port 41 by hand, and the steam port 41 can be easily mounted simply by pushing from above.

In such a configuration, a plurality of vapor discharge holes 62 are concentrically formed on the upper surface of the upper member 52 formed in a round shape.
Therefore, even when the vapor port 41 is mounted without any direction, the position of the vapor discharge hole 62 does not change significantly depending on the mounting direction. No appearance can be maintained.

An annular steam port packing 45 as an elastic member is provided around an opening 44 formed at the center of the bottom of the fitting recess 43, and extends downward from the center of the outer bottom surface of the lower member 51. The projecting portion 53 is provided with a convex portion 54 that can be engaged with and disengaged from the engaging projection portion 48 of the steam port packing 45. The engaging projection 48 of the mouth packing 45 is elastically deformed, and the lower member 51
Engages with the convex portion. Therefore, despite the simple mounting structure in which the steam port 41 is pushed in the vertical direction, the problem that the steam port 41 comes off when the lid 31 is opened can be eliminated. Further, the elastic deformation of the engaging projection 48 merely lifts the steam port 41, whereby the engagement between the projection 54 of the lower member 51 and the engaging projection 48 is released, and the steam port 41 is closed. It can be easily removed from. Furthermore, the space between the lower member 51 of the steam port 41 and the lid 31 is sealed by the engaging projection 48 of the steam port packing 45 that is elastically deformed, so that steam leakage to the outside of the steam port 41 is prevented, Steam leaks from the gap between the steam port 41 and the outer lid 32,
Problems such as dew condensation occurring in the gap can be eliminated.

Further, in this embodiment, since the steam port packing 45 seals the gap between the outer lid 32 and the lower surface member 34 constituting the lid 31, the number of parts is increased. Without the lid 31 from between the outer lid 32 and the lid lower surface material 34
It is possible to prevent vapor from entering the inside of the device, and simplification of the structure can be achieved.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

[0033]

According to the first aspect of the present invention, in order to achieve the above-mentioned object, in order to achieve the above object, the steam generated inside the main body is discharged to the outside of the main body to the lid covering the upper part of the main body. A steam port is provided detachably, and the steam port is constituted by a combination of at least a bottom member having a bottomed container and an upper member that covers an upper opening of the lower member, and is provided around an outer periphery of the lower member. An outer convex portion extending outward and an inner convex portion extending inwardly provided on the inner periphery of the upper member so as to be engaged with a lower side of the outer convex portion, thereby lowering the upper member. A protrusion is provided so as to be rotatably fitted to the member, and near the locking portion between the outer convex portion and the inner convex portion, a projection for preventing the upper member from coming off after the upper member is engaged with the lower member. Are provided on the lower surface of the outer convex portion and the upper surface of the inner convex portion, so that the dimensional variation, shrinkage and deformation during use progress. Even if it, degradable and mounting of the steam outlet is maintained satisfactorily, it can provide a thermal insulation kettle practicality is kept good. Furthermore, by the protrusion, the tightening of the lower member and the upper member can be confirmed with a click feeling,
An effect of suppressing detachment of the upper member can be obtained.

[0034] Further, the insulated pot according to claim 2 of the present invention comprises:
In addition to the configuration according to claim 1, an uneven display indicating a direction in which the upper member and the lower member are separated and mounted on the outer surface of the steam port, facing the steam port mounting portion of the lid. And not only the function and effect of claim 1 but also
In addition to maintaining good appearance during normal use, it is possible to prevent erroneous use in which the lower member and the upper member are disassembled with the steam port attached to the lid.

[Brief description of the drawings]

FIG. 1 is an overall cross-sectional view of a warming pot showing one embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the vicinity of the steam port.

FIG. 3 is a plan view of an upper member constituting the steam port.

FIG. 4 is a sectional view taken along the line AOA ′ of FIG. 3;

FIG. 5 is a view as seen from a direction B in FIG.

FIG. 6 is a bottom view of the same member.

FIG. 7 is an enlarged sectional view of a main part of the upper member.

FIG. 8 is a plan view of a lower member constituting the steam port.

FIG. 9 is a sectional view taken along line CC ′ of FIG. 8;

FIG. 10 is a view seen from an arrow E in FIG. 8;

FIG. 11 is a view as seen from the direction of arrow F in FIG. 8;

FIG. 12 is an enlarged front view of a main part of the upper and lower members.

[Explanation of symbols]

 1 Body 31 Lid 41 Steam port 43 Fitting recess (steam port mounting part) 51 Lower member 52 Upper member 71 Outer convex portion 73 Inner convex portion 78, 79 Projection 81 Display portion

Claims (2)

[Claims] A cover for covering an upper portion of a main body is detachably provided with a steam port for discharging steam generated inside the main body to the outside of the main body, wherein the steam port is at least a bottomed container-shaped lower member. And an upper member that covers an upper opening of the lower member, and an outer protruding portion provided on the outer periphery of the lower member and extending outward, and is engaged with a lower side of the outer protruding portion. As described above, the inner member is provided on the inner periphery of the upper member and extends inward, so that the upper member is rotatably fitted to the lower member, and the outer protrusion and the inner protrusion are formed. In the vicinity of the locking portion, after the upper member is engaged with the lower member, protrusions for suppressing detachment of the upper member are provided on the lower surface of the outer convex portion and the upper surface of the inner convex portion. Insulated pot. 2. The upper member and the lower member are separated from each other on the outer surface of the steam port so as to face the steam port mounting portion of the lid.
The heat retaining pot according to claim 1, wherein an uneven display portion indicating a mounting direction is formed.