JP2004313278A - Bowl with synthetic resin lid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bowl with a synthetic resin lid, conveniently used as Urushi-coated Japanese tableware, adaptable to a wider range of application while eliminating instability peculiar to the bowl based on the set size in the design of the bowl and considering the safety and sanitation. <P>SOLUTION: The maximum diameter D2 of a base 14 integrally formed in a bottom part 12 of a bowl body 10 is set as the size exceeding a half of the maximum diameter of the bowl body 10, or preferably, less than two thirds of the size of the bowl body 10. Notches 15 whose width is such that a finger can not be inserted into them are formed at three positions of the base 14 at intervals of the angle of 120 degrees. A lid receiving step 13 is discontinuously formed on the inner surface 11A for receiving the peripheral rim 23 of the bowl lid 20, and when the bowl lid 20 is engaged, ventilation gaps are formed on the outer periphery of the peripheral rim 23. Round-shaped parts R1 and R2 with large diameters are formed in corner sections 17 and 27 of the base 14 and a knob 24 respectively. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is a synthetic resin that improves stability in use in general household environments and in business use such as hospitals and nursing homes, as well as measures to prevent adsorption of the bowl lid to the bowl body and to improve usability in washing with water. To a bowl made of plastic.
[0002]
[Prior art]
The bowl made of synthetic resin with a lid has been developed due to a shortage of wooden lacquer bowl materials, mainly keyaki wood, and is required to have a quality equal to or better than that of wooden. The bowl with a lid, regardless of whether it is a rice bowl or a soup bowl, is practically superior in heat retention and moisture retention compared to Western tableware without a lid, and is indispensable to Japanese cuisine It can be said that it is a familiar representative as tableware and lacquerware. However, it cannot be denied that it has a disadvantage of being unstable in use. This is a problem due to the design dimensional ratio of each part constituting the bowl.
[0003]
That is, one of the causes of the instability is that the bowl bottom has a high hill for its diameter. The hill is a result of the practice of eating in Japan, where tableware is brought to the mouth to eat.Without the hill, fingers cannot reach the bottom of the bowl when lifting the bowl from the table, making it extremely difficult to handle. Because. Similarly, the bowl is set to have a smaller flat area than Western tableware for handling reasons, and the height is set to be higher in order to secure an inner capacity while having a small flat area. Therefore, the fact that the center of gravity is necessarily high is also a factor of instability.
[0004]
Another factor contributing to instability is chopsticks as a meal. The chopsticks can pick up the contents without exerting any force on the bowl, so even if the tableware is unstable, it does not hinder the meal. In other words, the bowl design has been cultivated historically due to the necessity of Japanese dietary practices. This suggests that if a dimensional ratio that unnecessarily requires stability is adopted, the bowl is not recognized as a bowl.
[0005]
By the way, despite the fact that bowls are tableware that presuppose the use of chopsticks, the skill of using chopsticks like an infant is due to physical breakdown, etc., or for reasons of nursing care when they cannot eat on their own. Due to the immaturity or the westernization of eating habits, the chance of using chopsticks has decreased, and instead, eating with a spoon or fork has increased. Spoons and forks are used for pushing and scooping or stabbing food, and if the tableware used is unstable like a bowl, it easily falls over. In addition, even if it does not fall, it loses its position due to the pushing force of the spoon or the like.
[0006]
Further, with the spread of heat-resistant resin materials, bowls with lids have been used as cooking containers using microwave ovens. For a bowl with a lid as a cooking container, the temperature difference should be adjusted according to the characteristic that the steam generated inside the bowl flows out to the outside moderately in order to prevent the spill and the bowl lid from jumping up. Therefore, the characteristic that the bowl lid does not adhere to the bowl body is required. In addition, in the case of washing after a meal, it is required that dirt hardly remains and draining is good. Furthermore, the storage after washing is required to be able to be stably stacked and not to damage the lacquer-like finish peculiar to the bowl.
[0007]
Conventionally, a bowl with a synthetic resin lid that satisfies each of the above requirements can be found except for the requirement of stability when using a spoon or fork and during transportation, but one that satisfies the entire requirement above is provided. Absent. And what satisfy | fills each request | requirement (for example, Unexamined-Japanese-Patent No. 7-20932, registered utility model No. 30111540) can be mentioned.
[0008]
The techniques disclosed in the above publications relate to a technique for preventing the bowl cover from being attracted to the bowl body and a technique for improving drainage of the inner peripheral portion of the hill after washing. Japanese Unexamined Utility Model Publication No. 7-20932 discloses a bowl lid suction preventing means that at least three steps are formed on an inner peripheral wall of a bowl body so as to draw an arc from the bottom of the bowl, and a step portion at a vertex position of the arc is provided. In this example, the bowl lid is supported at, for example, three points. Thereby, it is assumed that the suction between the bowl lid and the bowl body can be weakened.
[0009]
On the other hand, the draining method disclosed in Japanese Utility Model Registration No. 30111540 discloses a method in which a plurality of annularly continuous hills are cut away to lose continuity of the hill, and the cut bottom portion is formed between the bowl bottom and the inner peripheral surface of the hill. It aims to drain the water remaining on the corners, and claims to improve the design. Regarding the bowl with a lid described in any of the publications, the corner between the bottom of the bowl and the inner peripheral surface of the hill has a clear valley shape.
[0010]
Further, Japanese Utility Model Application Laid-Open Nos. 59-162071 and 59-162072 disclose an appropriate number of concave portions having an arbitrary shape on an inner wall portion of a bowl in which an edge of an upper lid is in contact with the lid when the lid is closed (Japanese Utility Model Application Laid-Open No. 59-162207). No. 162071) or a convex portion (Japanese Utility Model Application Laid-Open No. 59-162072), and a breathable bowl having a ventilation portion formed between the convex portion and the inner wall portion and the edge of the upper lid, or between the concave portion and the edge of the upper lid. Is disclosed.
[0011]
Japanese Utility Model Application Laid-Open No. 59-162071 and Japanese Utility Model Application Laid-Open No. 59-162072 prevent the upper lid and the bowl main body from being adsorbed by steam similarly to the bowl with a lid disclosed in Japanese Utility Model Laid-Open No. 7-20932. Therefore, many other techniques have been proposed for preventing the lid and the bowl body from being attracted to each other.
[0012]
[Problems to be solved by the invention]
The conventional techniques disclosed in the above-mentioned documents have the following problems. For the technique of supporting the bowl lid at three points at the apex of the arc-shaped step or weakening the suction of the bowl lid by a convex or a concave, a vertex in which the periphery of the bowl lid is carefully made into a plurality of steps (hereinafter, referred to as a vertex) (The case of a vertex including a convex part and a concave part will be described.) When placing the bowl lid in accordance with the above, there is no particular inconvenience. The part comes off from one vertex, and the deviated part enters the valley part of the mountain-shaped step and becomes skewed with an oblique posture, and if you try to return to the original position, it interferes with the vertex part of the step and further squeaks However, there is a problem in stability in that a special procedure is required for handling the bowl lid.
[0013]
In addition, as for the technology that cuts out the hill to promote drainage inside the hill, when draining a large amount of water, the intended drainage effect can be exhibited, but there is a real problem with drainage. Is water that adheres and remains as water droplets at the corners between the bottom of the bowl and the inner peripheral surface of the hill, which is difficult to wipe off with a cloth or the like, and the notch has no effect on the water remaining in this mode. It cannot be demonstrated. Also, because this notch is formed large, it is easy for a finger to enter, for example, if you try to hold the bowl with one hand, you accidentally insert your finger into this notch and the bowl will fall over there were.
[0014]
The present invention solves such problems in the prior art, and at the same time secures the stability and safety of a lidded bowl that has not been considered before, so that use is hesitated due to instability. However, it is an object of the present invention to provide a bowl with a synthetic resin lid that can be adapted to business use in hospitals and nursing homes by eliminating such anxiety.
[0015]
[Means for Solving the Problems]
The present invention achieves this object with the following configuration.
[0016]
Therefore, in the present invention, a plate is integrally formed on the bottom of the bowl, and a lid receiving step portion for receiving the peripheral portion of the lid bowl is formed on the inner surface of the bowl, while the lid body and the handle are integrally formed to form a plate. A bowl with a synthetic resin lid constituted by combining bowl-shaped lids in a shape, wherein the hill set at the bottom of the bowl has a maximum diameter exceeding one half of the maximum diameter of the bowl body and three minutes. The first feature is that the dimension is set to a dimension less than 2.
[0017]
The bowl has a dimension ratio that is traditionally determined as a whole, and the stability in transporting or using the bowl with a lid is almost always determined by the size ratio between the maximum diameter of the bowl body and the maximum diameter of the hill. The effect of the hill itself on the design of the bowl is relatively small. Therefore, by setting the maximum diameter of the hill to a dimension exceeding one half of the maximum diameter of the bowl body, the stability in use and handling of the bowl can be improved. Further, when the maximum diameter of the hill is less than one half of the maximum diameter, no particular improvement in stability is expected. When the maximum diameter of the hill exceeds two-thirds of the maximum diameter of the bowl body, it is difficult to maintain the traditional design of the bowl. Furthermore, when holding the bottom of the bowl with one hand, it becomes difficult to hold. Therefore, by setting the maximum diameter of the hill to a size that is more than one-half and less than two-thirds of the maximum diameter of the bowl main body, the use and handling of the bowl while maintaining the traditional appearance of the bowl are maintained. It is intended to improve the stability of the device.
[0018]
In the bowl with a synthetic resin lid according to the present invention, the lid receiving step for receiving the peripheral portion of the bowl lid on the inner surface of the bowl main body is partially discontinuously formed as a straight line, and the peripheral edge of the fitted bowl lid is the same. The second feature is that the discontinuous portion is a ventilation gap.
[0019]
The lid receiving step has a smaller diameter than the inner diameter of the bowl main body at its depth position, and accordingly, according to its protruding dimension, a lid receiving step of a fixed length that is linear and discontinuous in a side view is formed, and the inner diameter of the bowl main body is formed. The smaller-diameter bowl lid can be stably received at that position. In addition, since the lid receiving step is formed discontinuously, a large gap is formed between the peripheral portion of the bowl lid and the inner surface of the bowl main body in a portion where the lid receiving step is not formed. . Since steam and the like can be communicated to the outside through this gap, for example, when cooking using a microwave oven, the aqueous solution is boiled and the bowl lid is lifted by the pressure, or hot. The aqueous solution is cooled and brought into a vacuum state to prevent the lid from being in an adsorbed state.
[0020]
The notch for drainage formed on the hill of the synthetic resin-covered bowl according to the present invention is formed so as to reach the bottom of the bowl with a width that does not allow a finger to enter at an angle interval of 120 degrees on three sides. It has three features.
[0021]
After washing, when the bowl is lowered and drained, the water inside the hill naturally flows out of the notch for draining, so that it is possible to save the trouble of shaking the bowl for draining. In addition, since the notch has a width that does not allow a finger to enter, an accident in which a finger is inadvertently inserted into the notch when the placed bowl is to be held with one hand and the bowl is overturned is eliminated.
[0022]
The synthetic resin-covered bowl according to the present invention has a large-diameter corner formed by the bottom of the bowl and the inner peripheral surface of the hill, and a corner formed by the inner peripheral surface of the handle of the lid body. The fourth characteristic is that the molding is performed by adding a radius.
[0023]
Due to the large diameter radius, the mold releasability is improved at the time of molding, and sharp corners are not formed, so that water droplets remaining in this portion can be easily wiped off. Furthermore, even if dust adheres, it can be easily wiped off, which is important from the viewpoint of safety and health.
[0024]
The bowl with a synthetic resin lid according to the present invention is provided on the inner surface of the bowl bottom and the inner surface of the hill, and the inner surface of the lid body where the handle and the inner corner of the inner surface are rounded to prevent sink marks generated during molding. The fifth feature is that the flesh is filled.
[0025]
That is, since a large radius is provided at the bottom of the bowl and the corner of the hill, and a large radius is similarly provided at the bottom of the lid and the corner of the handle, the thickness of the radius is larger than that of the other portions. Because it is thick, the cooling rate during molding is delayed, causing partial sink marks and causing defective products. Therefore, flaking is carried out to prevent this. The thickness of this fillet is determined based on prototypes and experience.
[0026]
In the bowl with a synthetic resin lid according to the present invention, a non-slip coating film can be formed on the lower end surface of the hill.
[0027]
Even if stabilization is achieved by increasing the diameter of the hill, for example, it is not possible to prevent the bowl from sliding on an inclined tray. Therefore, by forming a non-slip coating film on the lower end surface of the hill, it is possible to improve the stability in which the slide does not move.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0029]
The bowl with a synthetic resin lid (hereinafter, simply referred to as a “bowl with a lid”) of the present invention is, for example, a PET resin that is a crystalline resin or a composite of a PET resin and a PBT resin described in Japanese Patent No. 3119654. It comprises a bowl body 10 formed by injection molding a resin material or a synthetic resin material such as heat-resistant ABS that can withstand microwave cooking, and a bowl lid 20 that fits the bowl body 10 (FIG. 1).
[0030]
The bowl body 10 is formed by integrally molding a bowl side surface 11, a bowl bottom portion 12, and a hill 14. On the inner surface 11A of the bowl side surface 11, lid receiving steps 13, 13, 13 are formed in three directions, and on the hill 14, notches 15 for draining water are formed in three directions. The lid receiving steps 13, 13, 13 and the notch 15 for draining water are all arranged at an angular interval of 120 degrees.
[0031]
The three lid receiving steps 13, 13, 13 are located on the same horizontal plane at a position slightly lower than the bowl edge 16, are formed in a straight line in a side view, and the inner peripheral surface 11 </ b> A of the bowl side 11 is a lid receiving step. 13 has reached the bottom 12 of the bowl as if it had been scraped off smoothly. Therefore, the lid receiving steps 13 are discontinuous and located at the same height. The three cutouts 15 have a width of about 5 to 10 mm, are set to a width that does not allow a finger to be easily inserted, and reach the bottom 12 of the bowl. Further, the bowl lid 16 has a shape called a lily shape (curved like a lily petal) that is familiar to the mouth, that is, a shape that is easy to suck juice.
[0032]
The bowl bottom portion 12 is formed in a very gentle middle depression, and a hill 14 is integrally formed at a position before standing on the bowl side surface 11. The hill 14 has a large radius R1 at a corner 17 formed by the inner peripheral surface 14A and the bowl bottom 12. In addition, the maximum diameter D2 of the hill 14 is set to a size that is more than one half and less than two thirds of the maximum diameter D1 of the bowl body 10. Therefore, even if the total height of the bowl body 10 does not substantially change, the height 14 is located outside the curved portion of the bowl bottom 12 compared to the conventional product, so that the height of the height 14 Is high.
[0033]
On the other hand, the bowl lid 20 is formed by integrally molding a lid side surface 21, a lid bottom portion 22, and a handle 24 (FIGS. 1 and 2). The bowl lid 20 is fitted into the bowl body 10 at the position of the lid receiving steps 13, 13, 13 in the bowl body 10, and the outer diameter of the bowl lid 20 is diametrical with respect to the inner peripheral dimension of the lid receiving step 13. In addition, there is a dimensional relationship with play. Further, the extension line L2 of the handle 24 is angled to open outward by 4 degrees with respect to the center line L1, so that the bowl cover 20 can be easily handled. The handle 24 can be installed in the same manner as the notch 15 for drainage provided on the platform 14 (not shown).
[0034]
That is, the peripheral portion 23 of the bowl lid 20 is received by the lid receiving step 13 which is partially aligned at three places, and the inner peripheral surface 11A of the bowl side surface 11 is formed so as to be partially smoothed off. Therefore, when the bowl cover 20 is fitted into the bowl body 10 and assembled, the peripheral portion 23 is stably received by the lid receiving step 13, and the inner peripheral surface 11A and the outer diameter of the peripheral portion 23 of the bowl lid 20 are loosely fitted. And a large gap is formed. Therefore, since the resin material of the present invention is formed by selecting a crystalline resin or a heat-resistant ABS resin, when cooking in a microwave oven, the bowl main body 10 and the bowl lid 20 can be used.
[0035]
The corner R 27 formed by the inner peripheral surface 24 </ b> A of the handle 24 of the bowl lid 20 and the lid bottom 22 is provided with a large radius R 2. The reason why the radius R2 and the radius R1 of the bowl body 10 are both large is that the drainage is improved, and that the moisture inside the hill 14, the handle 24 and the attached dust are easily wiped off with a cloth. That's why. However, since the radius R1 and the radius R2 are large, the wall thickness is partially increased, and molding sinks occur on the inner surfaces 19 and 29 during molding. In order to prevent the molding sink, a slight depression is formed in the mold on the inner and outer sides 19 and 29 so that the molded product can be thickened. The thickness of the fillet is determined by trial production and experience, but in this product, the thickness of the fillet was 0.2 mm.
[0036]
In such a bowl with a lid (FIG. 3), the maximum diameter D2 of the hill 14 is large, so that the vertex angle A1 of the triangle formed by connecting the lower end surface 14D of the hill 14 and the center of gravity M1 of the bowl body 10, and the hill Since the apex angle A2 of the triangle formed by connecting the lower end surface 14D of the cup 14 and the center of gravity M2 of the bowl with a lid in which the bowl lid 20 is attached to the bowl body 10 can be increased, it is possible to use a tray or a serving truck. It can be made difficult to fall down even by casual handling. This is because the triangle is more stable as the apex angles A1 and A2 are larger. In other words, the stability increases as the maximum diameter D2 of the hill 14 increases.
[0037]
A non-slip coating 18 can be formed on the lower end surface 14D of the hill 14 of the bowl body 10 with the lid (FIG. 4). The non-slip coating film 18 can be easily formed by applying a paint containing a material having high friction, for example, a urethane paint or a rubber paint. By forming the non-slip coating film 18, it is possible to prevent the sliding on the tray and the unevenness on the serving truck, and the effect of preventing the occurrence of contact scratches when the bowl bodies 10 are stacked upon storage. Is also obtained (FIG. 5).
[0038]
In the case of a bowl with a lid for use in a hospital or a nursing facility, it is preferable that the hill 14 and the handle 24 be set particularly high to improve the handling, since persons with physical disabilities are more likely to handle the bowl. Further, when the hill 14 and the handle 24 are set high, when the bowl lid 20 and the bowl body 10 are stacked and stored, the upper and lower bowl lids 20 and the upper and lower bowl bodies 10 are separated by the handle 24 and the lid bottom 22 respectively. Only (FIG. 5 (A)) or contact only with the hill 14 at the bowl bottom 12 (FIG. 5 (B)), so that the picture on the lid side 21 or the bowl side 11 is prevented from being stained, and especially the outer surface of the bowl body 10. Can prevent a decorative item such as a lacquer from being rubbed and damaged, and can extend the service life. In addition, stable stacking and stacking can be performed, which is convenient for organizing.
[0039]
【The invention's effect】
The bowl with a synthetic resin lid according to the present invention has a maximum diameter of the hill which is integrally formed on the bottom of the bowl body, a dimension exceeding one half of the maximum diameter of the bowl body, and preferably a maximum diameter of the bowl body. The size is set to more than half and less than two-thirds, and a notch for draining is provided on the hill to prevent fingers from entering. As a configuration, the ventilation gap between the bowl and the bowl is provided, and a large radius is provided at the corner of the hill and the handle, so that the effect on the appearance as a Japanese tableware is minimized, while the stability as a bowl is improved. It is suitable for use in hospitals and nursing homes where it is improved and maintains its decorativeness as lacquer ware, and is often handled differently from ordinary households. It is possible to eat meals and side foods in a microwave oven In that case, there is no waste (garbage) such as film wrap and seal lid, and sufficient draining and wiping can be performed. .
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing an embodiment of the present invention.
FIG. 3 is an explanatory diagram of an operation in the embodiment of the present invention.
FIG. 4 is a sectional view of a main part showing another embodiment of the present invention.
FIG. 5 is a sectional view showing a stored state according to another embodiment of the present invention.
[Explanation of symbols]
D1 Maximum diameter (of the bowl body) D2 Maximum diameter (of the hill) R1 (of the hill) R2 (handle) Round 10 Bowl body 11A (of the bowl body) Inner surface 12 Bowl bottom 13 Lid receiving step 14 Inner peripheral surface 14D Lower end surface 15 Notch 17 Corner 19 (of bowl main body) Inner surface side 20 (of bowl main body) Bowl lid 23 Peripheral portion 24 (of bowl lid) Handle 24A Inner peripheral surface 27 of (handle) Corner 29 of the bowl lid

Claims (5)

The bowl body and the platen are integrally formed at the bottom of the bowl, and the bowl is provided with a lid receiving step for receiving the peripheral portion of the bowl lid on the inner surface, while the lid body and the handle are integrally molded to form a dish. In a bowl with a synthetic resin lid configured by combining
The height set at the bottom of the bowl main body is such that the maximum diameter of the height is set to a dimension of more than one half of the maximum diameter of the bowl main body and less than two thirds,
On the inner surface of the bowl main body, a lid receiving step for receiving the peripheral edge of the bowl lid is formed discontinuously as a part of a straight line, and the fitted peripheral edge of the bowl lid has the discontinuous portion as a ventilation gap,
At the corner formed by the bottom of the bowl and the inner peripheral surface of the hill, a large-diameter radius is imparted and molded,
A bowl with a synthetic resin lid. On the hill at the bottom of the bowl, cutouts for draining are formed at intervals of 120 degrees on three sides of the hill, so as to reach the bottom of the bowl as a width that does not allow a finger to enter,
A bowl with a synthetic resin lid according to claim 1. The corners formed on the inner peripheral surface of the handle in the lid body were molded by giving a large diameter radius,
A bowl with a synthetic resin lid according to claim 1. On the inner surface side of the inner bottom surface of the bowl, the inner peripheral surface of the hill and the inner peripheral surface of the inner peripheral surface of the handle in the lid main body, the inner surface side is provided with a flesh to prevent sink marks generated during molding,
4. A bowl with a synthetic resin lid according to claim 1. On the hill at the bottom of the bowl, a non-slip coating film is formed on the lower end surface,
A bowl with a synthetic resin lid according to claim 1, 2 or 4.

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