JP5037314B2 - Warming pot - Google Patents

Description

  The present invention relates to a heat retaining pot having no heating means.

Various types of heat-insulating pots have been devised in the past as thermos bottles, but the basic structure is that the lid that opens and closes the opening of the container is swingable by a hinge attached to the shoulder member attached to the container The lid body has a heat insulating bulging portion that serves as a circular inner cross-section that fits into the circular opening having a reduced diameter of the container on the lower surface thereof, and the outer peripheral surface of the bulging portion. A packing is provided around the entire upper end of the sheet (see FIG. 1 of Patent Document 1 and FIG. 1 of Patent Document 2).
JP-A-9-299252 JP-A-10-179422

  None of these types of heat-insulating pots provided a drainer on the inner surface of the lid. This is because there is no necessity because the temperature rises so much that steam rises and there are few water droplets adhering to the inner surface of the lid.

On the other hand, in an electric heat retaining pot, since it is constantly maintained at a constant temperature by heat generated by electricity, water is often evaporated and there are many water droplets adhering to the inner surface of the lid body, so when the lid body is opened, the water droplets are kept warm. Often falls outside the pot. For this reason, some electric heat insulation pots are provided with a drainer on the inner surface of the lid (see claim 1 of Patent Document 3 and reference numeral 26 in FIG. 2).
JP 2004-357747 A

  Conventionally, as described above, in the heat insulating pot, a means for preventing water droplets from falling outside the heat insulating pot along the inner surface of the lid body has been provided from the point that water droplets are less likely to adhere to the inner surface of the lid body. Nonetheless, due to the diversification of today's lifestyle, even in a heat-insulating pot, it is possible to increase the value of the product by minimizing the dropping of water droplets outside the heat-insulating pot.

  This invention makes it a subject to eliminate the fall of the water droplet adhering to the cover body inner surface outside a heat retention pot in a heat retention pot.

  In order to achieve the above object, the present invention provides a drainer in the middle of the outer peripheral surface from the tip of the lid bulging portion to the packing on the hinge side.

  Here, “water draining” refers to a flow surface where water (water droplets) flows down and has a portion where the flow surface moves from a descending slope to an ascending slope in a part of the flow direction. The water is allowed to fall from the flow surface. This transition location is formed, for example, by providing a rib or a groove on the flow surface.

  In order to enhance the heat retention, the heat insulating pot has a reduced diameter opening in the container, and a heat insulating bulging portion (inner plug) provided on the lower surface of the lid fits into the opening of the container, The gap between the bulging part and the container opening is made as small as possible to prevent the release of steam (heat). For this reason, the vapor | steam from a container condenses on this bulging part lower surface and outer peripheral surface, and a water droplet adheres.

  Further, in order to improve the heat retention, a packing is provided around the entire upper end of the outer peripheral surface of the bulging portion, and the packing is pressed against the upper end surface of the container to prevent steam leakage.

  Since the heat-insulating pot has such a configuration, when the lid is opened with the hinge portion, water droplets adhering to the outer peripheral surface as it is opened are directed by its own weight and travel down the outer peripheral surface toward the hinge portion on the lower side. And run down. At this time, if a drainage is provided in the middle of the hinge side from the tip of the lid bulging part to the packing, the waterdrop flowing therethrough is captured by the drainage and falls downward from the drainage by the weight of the waterdrop. Many of them fall on the container.

  As a configuration of the present invention, a lid for opening and closing the opening of the container is provided on a shoulder member attached to the container so as to be rotatable by a hinge, and the lid is formed on a lower surface of the circle with a reduced diameter of the container. A bulging portion for heat insulation having a circular cross-section that fits in the opening, a packing is provided around the upper end of the outer peripheral surface of the bulging portion, and an outer peripheral surface extending from the tip of the bulging portion to the packing is provided. A configuration in which a drainer is provided in the middle of the hinge side is adopted.

  Although this configuration effectively prevents the water droplets adhering to the inner surface of the lid body from dropping out of the heat retaining pot due to the above action, it is preferable to provide a drainer at a position as close as possible to the packing on the outer circumferential surface of the lid body. As the lid opens closer to the maximum opening angle, the water droplets adhering to the outer peripheral surface of the lid flow down toward the hinge and collect. This is because it drops downward. However, the position is appropriately determined so that the draining does not hinder the fitting of the bulging portion into the container.

For example, as described above, in order to enhance the heat retaining property of the heat retaining pot, the opening of the container is narrowed, so that the bulging portion is also reduced in diameter to match the reduced diameter opening of the container. At this time, if a step is provided, the vapor rising path is bent to make it difficult to leak and the temperature drop is suppressed, and dew condensation generated on the outer peripheral surface flows downward along the step.
For this reason, if the said draining is formed in the level | step-difference part, the water droplet which flows along the step part and flows below can be caught smoothly, and can be dropped.

  The draining shape may be a tongue-like shape that is long in the circumferential direction of the general bulging portion, or a rib shape that is long in the vertical direction of the bulging portion. In the rib-like draining, the rib flows downward through the rib-like draining and falls from the lower end thereof. At this time, if the rib-like draining is from the lower end of the outer peripheral surface of the bulging part to the upper end (if it is at the entire length of the outer peripheral surface), water droplets flowing down from the entire outer peripheral surface will eventually be captured by the rib-like draining. After that, since it falls along the rib-like draining, the water droplet collecting action on the entire outer peripheral surface becomes smooth.

If the packing is provided with a skirt portion that is long in the circumferential direction at the portion facing the drainer and curves inward toward the lower side, water drops that are not captured by the drainer can be captured by the skirt portion, It is possible to more reliably prevent water droplets from dropping out of the heat insulation pot.
At this time, if the skirt portion is provided on the entire circumference of the packing, the capturing action is performed on the entire circumference, and more water droplets can be stored in the pocket. It can prevent more reliably falling.

  In the heat insulating pot, it is preferable to reduce the diameter of the container in order to increase the heat insulation at the opening of the container because the heat cannot be maintained by heating. On the other hand, in the electric heat retaining pot, since heat insulation by heating is possible, heat insulation at the opening of the container is not emphasized, rather, in order to obtain the capacity of the container while lowering its overall height in order to increase the stability of the pot, In general, the diameter of the opening of the container is made as large as possible.

  Due to the difference between the above-mentioned heat insulation pot and the electric heat insulation pot, the packing of the electric heat insulation pot has a larger diameter than that of the heat insulation pot, and the skirt portion can be enlarged, but the packing of the heat insulation pot has a small diameter, and the electric heat insulation pot Cannot receive a lot of water like According to this configuration, after most of the water droplets attached to the lid are dropped efficiently by draining, the remaining water droplets are received by the skirt portion of the packing, and even in the small diameter packing of the heat insulation pot, the overflow from the skirt portion Can be made difficult to occur.

In addition, at the maximum opening angle of the lid, if a water receiver is formed at the upper end of the shoulder member below the hinge part of the lid, even if water drops overflow from the packing, the water drops are captured by the water receiver, It is possible to more reliably prevent water droplets from dropping out of the heat insulation pot.
At this time, the water receptacle is preferably formed on both sides of the hinge receptacle of the shoulder member. Water drops that reach the hinge part flow down to the upper surface of the shoulder member through the hinge part and the hinge receiver, so there is little risk of falling outside the heat-insulating pot, but water drops that reach the side part of the hinge part However, there is a high risk that it will fall out of the insulation pot. However, if there are water receivers on both sides of the hinge receiver, water drops reaching the side of the hinge receiver can be captured by the water receiver and can be prevented from falling out of the heat retaining pot.

  For example, if a configuration is adopted in which the overflow edge of the skirt portion of the packing is located on the shoulder member at the maximum opening angle, it is possible to avoid a water drop falling outside the heat retaining pot even if the skirt portion overflows. However, in order to realize the above configuration, increasing the packing has limitations in terms of packing moldability, contact stability of the seal portion, and the like. For this reason, it is conceivable to realize the above-described configuration by avoiding the enlargement of the packing and bringing the hinge position of the lid closer to the center side of the shoulder member.

  However, when the hinge position is employed, it is necessary to secure a hinge support height from the shoulder member in order to avoid interference between the lid and the shoulder member at the maximum opening angle of the lid. For this reason, compared with the structure which arrange | positions a hinge on a shoulder member and avoids interference with a cover body and a shoulder member using the space outside a shoulder member (structure of embodiment, refer FIG. 6), pot whole height is bulky. It will be. By receiving overflow from the packing using the hinge receiver, it is possible to more reliably prevent leakage of water droplets outside the pot while avoiding bulkiness of the entire pot height.

  Since the present invention is configured as described above and smoothly captures the water droplets adhering to the inner surface of the lid in the heat retaining pot, it is possible to reliably prevent the water droplets from falling outside the heat retaining pot. it can.

  As shown in FIG. 1, this heat-insulating pot is provided with a lid 2 that opens and closes an opening of a vacuum double-type stainless steel container 1 so as to be swingable by a hinge 4 on a shoulder member 3 attached to the container 1.

  On the lower surface of the lid body 2, an inner plug 6 having a circular cross section having a bulging portion that fits into the circular opening 5 having a reduced diameter of the container 1 is provided. The inside plug 6 is filled with a heat insulating material 7. A packing 8 is provided around the entire upper end of the outer peripheral surface of the inner plug 6 (see FIG. 2), and a tongue-like drainer 10 that is long in the circumferential direction of the inner plug 6 is formed on the stepped portion 9 formed in the inner plug 6. Is provided. The packing 8 is provided with a skirt portion 11 that is long in the circumferential direction at a portion desired for the drainer 10, is curved inwardly downward, and can collect water droplets inside thereof.

  The lid 2 is provided with a push button 12, and the push button 12 is pushed against the urging force of the spring 13 to contract the bellows-like bellows 16 through the pressing member 14 and the bellows cap 15. Then, the air in the bellows 16 is discharged to the container 1 through the discharge pipe 17 (see the arrow in FIG. 3). The inside of the container 1 is pressurized by this discharge, and the water in the container 1 is sent out of the heat insulating pot through the pumping pipe 18 and the water feeding pipe 19 inserted into the container 1 by this pressurization.

  Further, the lid 2 is provided with a lid opening button 20 for releasing the opening / closing lock of the lid 2 and a lock knob 21 for locking the push button 12 pressed.

  This inner plug may be designed to fit tightly into the opening 5 of the container 1, but as shown in FIG. 1, a gap is provided between the inner plug 6 and the opening 5, The lid 2 can be easily opened and closed. In addition, since the airtightness between the inner plug 6 and the container 1 is ensured by the packing 8 provided in the inner plug 6, there is no fear that the heat retaining property of the heat retaining pot is lowered by providing the gap.

  Further, a safety valve weight 22 and a safety valve ball 23 are provided in the middle of the water supply pipe 19 to prevent water from flowing out of the water supply pipe 19 when the heat-insulating pot falls. During the fall, the safety valve weight 22 fits into the valve seat 24 to close the water outlet 25, and the safety valve ball 23 closes the water supply pipe 19 to suppress the outflow.

  By providing both the safety valve weight 22 and the safety ball 23, a high spill prevention effect can be exhibited. However, only one of the safety valve weight 22 and the safety ball 23 is employed to simplify the spill prevention structure. It can also be configured. This is because either of them can exert the effect of preventing the outflow or slowing down the outflow speed.

  Further, as shown in FIGS. 4 and 5, the lid 2 is swingably provided on the shoulder member 3 attached to the container 1 with its hinge 4, and water is provided on both sides of the hinge receiver 26 of the shoulder member 3. A receptacle 27 is formed.

  The flow of water droplets when the lid is opened is shown in FIG. When the lid 2 is swung in the opening direction, water droplets adhering to the inner plug 6 flow to the hinge 4 side (lower side) by its own weight, and fall into the heat retaining pot from the lower end of the inner plug 6 and the drainer 10. (See dashed arrows in the figure). Further, when the lid 2 is opened to the maximum opening angle, water droplets fall from the drainer 10 into the heat retaining pot as described above, and water droplets attached to a part of the outer peripheral surface of the inner plug 6 are removed from the outer peripheral surface. And collects in the skirt portion 11 provided in the packing 8.

  If this skirt portion 11 is formed on the entire circumference of the packing 8, it is preferable because the packing shape is simplified, so that integral molding becomes easier and the volume can be secured than when it is formed in a part of the circumferential direction. However, for example, as shown in FIG. 7, the skirt portion 11 may be formed only on the rear side (hinge 4 side) of the lid body 2 into which water drops flow.

  When the skirt portion 11 is full, water starts to overflow from the skirt portion 11, and the overflowed water flows into the water receiver 27 through the hinge 4 and the hinge receiver 26. For this reason, there is a low possibility that water droplets will flow out of the heat retaining pot.

  The drainer 10 has a long tongue in the circumferential direction of the bulging portion 6 as shown in FIG. 4 as long as the water attached to the inner plug 6 can be efficiently collected and dropped into the heat retaining pot. It is not limited to a piece shape.

  For example, as shown in FIG. 8, the drainer 10 can be formed in a rib shape that is long in the vertical direction of the inner plug 6. When the opening angle of the lid 2 is small, the drainer 10 of this shape guides the water droplet toward the lower end of the inner plug 6 and drops the water droplet into the heat retaining pot. On the other hand, when the opening angle is large, The water droplets are collected in the skirt portion 11 of the packing 8 by being guided toward the upper end of the inner plug 6. For this reason, there is a low possibility that water droplets will flow out of the heat retaining pot.

  The rib-shaped drainer 10 is not necessarily provided from the lower end to the upper end of the outer peripheral surface of the inner plug 6, and is provided only at the lower end portion of the outer peripheral surface, for example, as shown in FIG. 9 (see reference numeral 10 in the figure). Alternatively, it may be provided only at the step portion (see reference numeral 10a in the figure). Furthermore, as shown in FIG. 10, it can also be set as the aspect which combined the drainage 10 of the tongue piece shape and the rib shape. In addition to this, the position and shape of the drainer 10 can be appropriately changed in consideration of the amount of water droplets attached to the inner plug 6 and the like.

Side surface sectional view which shows the principal part of the heat retention pot which concerns on this invention Side sectional view showing the main part of the lid of the heat insulation pot The perspective view which shows the attachment to the shoulder member of a cover body Lower perspective view of the lid The main part of a shoulder member is shown, (a) is a top view, (b) is XX sectional drawing of (a), (c) is YY sectional drawing of (a). Side view showing the flow of water droplets when the lid is opened Side surface sectional view which shows the principal part of the other aspect of a cover body The perspective view which shows the other aspect of draining The perspective view which shows the other aspect of draining The perspective view which shows the other aspect of draining

Explanation of symbols

1 container 2 lid 3 shoulder member 4 hinge 5 opening 6 bulge (inner plug)
7 Heat insulating material 8 Packing 9 Step part 10 (10a) Drainer 11 Skirt part 12 Push button 13 Spring 14 Pressing member 15 Bellows cap 16 Bellows 17 Discharge pipe 18 Pumping pipe 19 Water supply pipe 20 Lid opening button 21 Lock knob 22 Safety valve weight 23 Safety valve ball 24 Valve seat 25 Water outlet 26 Hinge receiver 27 Water receiver

Claims (8)

A lid (2) for opening and closing the opening of the container (1) is provided so as to be swingable by a hinge (4) of a shoulder member (3) attached to the container (1), and the lid (2) The lower surface has a heat-insulating bulging portion (6) having a circular cross section that fits into the circular opening (5) with a reduced diameter of the container (1), and the outer peripheral surface of the bulging portion (6). a packing (8) provided at the upper end all around, and draining (10) provided in the middle of the expanded portion of the outer peripheral surface extending from the tip (6) to the packing (8) the hinge (4) side, the upper Ki膨The projecting portion (6) has a step portion (9) whose outer peripheral surface extending from the tip to the packing (8) has a diameter expanding in the middle, and the draining (10) is formed in the step portion (9). Insulating pot characterized by. The heat-retaining pot according to claim 1, wherein the drainer (10) has a tongue-like shape that is long in the circumferential direction of the bulging portion (6). The heat-retaining pot according to claim 1, wherein the drainer (10) has a rib shape that is long in the vertical direction of the bulging portion (6). The heat retaining pot according to claim 3 , wherein the rib-like drainer (10) extends from the lower end to the upper end of the outer peripheral surface of the bulging portion (6). The packing (8) according to any one of claims 1 to 4 , wherein a skirt portion (11) is provided at a portion facing the drainer (10). The heat-retaining pot according to one. The heat retaining pot according to claim 5 , wherein the skirt portion (11) is provided on the entire circumference of the packing (8). In the maximum opening angle of the lid (2), according to claim 1 to 6, characterized by forming receiving water (27) in the hinge (4) below the shoulder member (3) upper end portion of the lid (2) The heat retention pot as described in any one of these. The heat retaining pot according to claim 7 , wherein the water receiver (27) is formed on both sides of the hinge receiver (26) of the shoulder member (3).

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