JP3157300U - Sterilizer and warmer - Google Patents

Abstract

Disclosed is a sterilization device and a heat retention device that are simple in configuration, easy to operate, and lightweight. An object is positioned between flat heating elements arranged opposite to each other, and the object is sterilized or sterilized by heat generated from the heating element. The heating element forms a heating layer having a positive temperature characteristic (PTC) on the insulating member. Further, the heat generation temperature by the heat generator can be set to 60 ° C. or higher. A timer that enables adjustment of the duration of heat generation by the heating element is provided. [Selection] Figure 4

Description

  The present invention relates to a sterilizing device for sterilizing kitchen utensils such as a cloth, a kitchen knife, and a cutting board, and a heat retaining device for retaining cooked prepared foods.

  Cloths, hand towels, cutting boards, kitchen knives, etc. used in kitchens in the food manufacturing industry and hospitals, including kitchens in general households, are always hygienic in order to sterilize before and after use and to prevent bacterial growth and food poisoning. It is necessary to keep it in a safe state. In order to maintain the hygienic condition of these kitchen utensils and utensils, conventionally, methods such as disinfection by ultraviolet irradiation and boiling of the target utensils or the use of kitchen disinfectants have been adopted. For example, Patent Literature 1 discloses a cleaning stand for sanitizing kitchen cooking utensils, in which an optical semiconductor non-woven cloth is attached to the inner surface, and a sterilizing utensil is immersed in a container filled with water. is doing.

  Further, Patent Document 2 discloses a heat sterilization apparatus that houses tableware in a container and introduces hot air into the container from a hot air supply unit to dry the tableware and perform heat sterilization. Yes. Furthermore, Patent Document 3 adds deformation (degradation or deterioration) of resin-made kitchen utensils by adding ions (silver ions) to washing water of kitchen utensils (cooking utensils) and irradiating the kitchen utensils with silver ions attached thereto. In addition, a kitchenware sterilization apparatus that prevents discoloration and improves the sterilization effect is disclosed.

Utility Model Registration No. 3061186 JP 2007-167538 A JP 2008-43392 A

  Tableware, cloths, hand towels, chopping boards, knives, etc. used in the kitchen, etc., will become a treasure house of germs if left unattended after use, and germs often remain even after washing with detergent, etc. There is no simple method for confirming the sterilization state. In particular, the present condition is that the dishcloths, chopping boards, knives, etc. are wiped with the cloths, assuming that the cloths are clean. In addition, there is a limit to changing the cloth width and the like each time it is used from the viewpoint of storage location and cost. Therefore, it is conceivable to sterilize the cloth cloth, cutting board, etc. using the devices described in Patent Documents 1 to 3 described above, but the device configuration is complicated and large in size, which is inconvenient in handling and general households. There is a problem that it cannot be used in places where there is not enough space such as kitchen.

  On the other hand, side dishes etc. are ideal to eat immediately after being cooked, but when the family's return time is different in ordinary households, or when providing meals to a large number of people in company cafeterias, After time has passed since cooking, they must provide prepared food. In such cases, the current situation is that the simmered food and soup are reheated each time using fire or an electromagnetic cooker. Such repeated re-heating of side dishes and the like has a problem that a decrease in taste, color, flavor and the like cannot be avoided, and a burden is imposed on a person who prepares and provides meals.

  The present invention has been made in view of the above-mentioned problems, and has been made by paying attention to the fact that most germs are killed by heat of 60 ° C. or higher. The object of the present invention is simple and easy to operate. It is to provide a lightweight and sterilizing device and a warming device.

As a means for achieving this object and solving the above-mentioned problems, for example, the following configuration is provided. That is, the sterilizing device according to the present invention is generated from the heating element while positioning the object between the flat heating elements arranged opposite to each other and maintaining the state in which the object is sandwiched by the heating element. The object is sterilized or sterilized by heat. The heating element is formed by forming a heating layer having a positive temperature characteristic (PTC) on an insulating member. Further, the heat generation temperature by the heat generator can be set to 60 ° C. to 80 ° C. or more. Furthermore, a timer that enables adjustment of the duration of heat generation by the heating element is provided, and the duration can include a time required for drying the object.
Moreover, the heat retaining device according to the present invention is characterized in that an object is placed on a flat heating element, and the object can be kept warm by heat generated from the heating element. Further, the present invention is characterized in that a cover member that can cover the entire object placed above is provided. The heating element is formed by forming a heating layer having a positive temperature characteristic (PTC) on an insulating member. Furthermore, a timer capable of adjusting the duration of the heat retention is provided.
The planar heating element according to the present invention generates heat and can sterilize or sterilize the sandwiched object by the heat, and can keep the placed object warm. .

  According to the present invention, it is possible to realize a sterilizing device that can eliminate germs and the like with a simple device configuration, and a heat-retaining device that can always maintain sugar beet etc. at the temperature at which it is eaten.

It is a figure which shows the external appearance structure of the heat-generation plate used for the sterilization instrument and heat retention instrument which concern on the example of embodiment of this invention. It is a figure which shows an example of a structure of the heat generating plate used for the sterilization instrument and heat retention instrument which concern on the embodiment of this invention. It is a figure which shows the other structural example of the heat generating plate used for the sterilization instrument and heat retention instrument which concern on the embodiment of this invention. It is a figure which shows a mode that a cloth cloth, a towel, etc. are sterilized in the sterilization instrument which concerns on the embodiment of this invention. It is a figure which shows a mode when a cutting board is sterilized in the sterilization instrument which concerns on the embodiment of this invention. It is a figure which shows a mode when sterilizing a kitchen knife in the sterilization instrument which concerns on the embodiment of this invention. It is a figure which shows an example of the heat retention apparatus which concerns on the example of embodiment of this invention. It is a figure which shows the other example of the heat retention apparatus which concerns on the example of embodiment of this invention.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. 1A and 1B show an external configuration of a heat generating plate used in a sterilizing instrument and a heat retaining apparatus according to an embodiment of the present invention, where FIG. 1A is a front view, FIG. 1B is a plan view, and FIG. ) Is a side view. As shown in FIG. 1, the heating plate 1 is a planar heating element having a structure in which a heating plate 3 is disposed on the upper surface of a holding plate 5. The holding plate 5 is a rectangular substrate made of a lightweight and robust resin, wood, etc. that is excellent in heat resistance and insulation, and the heat generating plate 3 is a commercial power source (for example, AC 100 V) supplied via a power cord 9. ) As a driving source, and is a planar heating element that generates heat at a constant temperature by a heating action described later. In addition, a rod-like hanging metal fitting 7 extending along the end portion is provided at one end portion in the longitudinal direction of the heat generating plate 1. With this hanging metal fitting 7, when the heat generating plate 1 is used or after use, the whole heat generating plate 1 is hung, or when the heat generating plate 1 is stood vertically, the hanging metal fitting 7 can be used for towel hanging or the like. it can.

  As shown in FIG. 2, for example, the heating plate 3 is a heating wire 13 (for example, nichrome wire, carbon powder, metal plate (metal pattern) such as a linear heater connected to an AC power source 19 on an insulating substrate 11. ) Etc. in a coil form is used as a heating element)), a conductive material such as carbon is mounted on a substrate as a heating element, and a composite sheet of carbon and resin is used as a heating element. It has the structure which has the planar heating element by such as. In a heating element using a linear heater, a resistance value is defined by selection of its length, cross-sectional area and material, and in a heating element using a composite of carbon and resin, a resistance value is defined by its composite ratio and the type of resin.

On the other hand, in order to suppress power consumption in the heat generating plate 3 and to generate heat uniformly in the entire plate, as a sheet heating element, a positive temperature characteristic (PTC (Positive
Temperature Coefficient)) A heating element can be used. For this type of heating element, for example, a PTC material such as a barium titanate ceramic semiconductor can be used. In this case, a material mainly composed of barium titanate is pressure-molded, and electrodes for supplying power (for example, a conductive material made of metal powder such as silver or copper) are baked on both surfaces thereof. When such a PTC material generates heat by energization, the resistance value increases as the temperature increases. Therefore, a self-temperature control function capable of automatically maintaining a constant heat generation temperature without using a special temperature control device is provided. The PTC resistor is considered to exhibit positive temperature characteristics (PTC) by breaking the chain of conductive particles due to the volume expansion of the crystalline polymer due to the temperature rise, and the resistance increases accordingly.

  Specifically, as shown in FIG. 3, PTC ink as a PTC material is formed as a heating element layer 17 on an insulating film 15 such as polyester (PET) by screen printing. Electrodes 21 and 23 for supplying power from the AC power supply 29 are provided on both surfaces of the heating element layer 17. The PTC ink used is, for example, a conductive ink mainly composed of a plastic matrix resin and conductive carbon particles, in which carbon or a thermal semiconductor is dispersed in a resin matrix serving as a binder. By energization, the planar heating element layer 17 can generate heat at a constant temperature. When the temperature is low, the chain of conductive carbon particles in the PTC ink overlaps and the current easily passes and the temperature rises. Due to thermal expansion, which partially cuts the carbon connection, making it difficult for current to flow.

  Next, the sterilizing instrument according to the embodiment of the present invention will be described in detail. FIGS. 4-6 has shown the external appearance of the sterilizer which concerns on this Example, FIG. 4 shows the state of sterilization and disinfection, such as a cloth and a towel, using this sterilizer. Show. FIG. 5 shows a state when the cutting board is sterilized and sterilized with a sterilizer, and FIG. 6 shows a state when the knife is sterilized and sterilized. As shown in FIGS. 4 to 6, the sterilizing instrument according to the present embodiment has two heating plates described above facing each other, and positions and holds an object to be sterilized or sterilized between the plates. It has a structure. The sterilizing instrument 40 shown in FIG. 4A aligns two heat generating plates 41a and 41b having the same configuration as the heat generating plate 1 of FIG. 1 so that the heat generating plates 43a and 43b face each other. The cloth / hand towel 44 to be sterilized and sterilized is positioned between. Then, while maintaining the positioning state, the heating plates 41a and 41b are moved in the direction of the arrows, and the cloth width / hand towel 44 is sandwiched between the heating plates 43a and 43b, and as shown in FIG. The two heat generating plates 41a and 41b are fixed by fastening members 45 and 46 whose lengths can be adjusted, for example, a heat resistant rubber band, an elastic belt, a clip or the like. As a result, the contact state between the cloth / hand towel 44 to be sterilized and sterilized and the surface of the heating plates 43a, 43b can be maintained, and heat at a predetermined temperature generated from the heating plates 43a, 43b is transferred to the cloth / hand towel 44. Since it conducts, it becomes possible to dry, sterilize, and disinfect the cloth / hand towel 44.

  The sterilizer 40 operates by receiving supply of AC power (for example, power from a commercial power source of 100 V). Therefore, a power supply port (not shown) is provided in the vicinity of the center of the end portions of the heat generating plates 41a and 41b of the sterilizing instrument 40. Further, the power cord 49 for supplying AC power to the sterilizing instrument 40 has its tip portion branched in two directions as shown in FIG. 4B to constitute cord connecting portions 49a and 49b. By connecting each to the power supply ports of the heat generating plates 41a and 41b, power is supplied to the sterilizing instrument 40 with the cloth towel / hand towel 44 sandwiched therebetween.

  When the power supply is received, the heating plates 43a and 43b generate heat and reach a predetermined temperature. In the present embodiment, for example, the sterilizing device 40 has a temperature of 60 ° C. to 80 ° C. or higher at which most pathogenic bacteria (food poisoning bacteria) such as Salmonella, pathogenic E. coli, staphylococci, and E. coli O-157 are supposed to die. The heat generation temperature of the heat generating plates 43a and 43b is adjusted. Therefore, when linear heaters are used for the heat generating plates 43a and 43b of the sterilizing device 40, the length is adjusted during the design and manufacture of the sterilizing devices, and PTC is used for the heat generating plates 43a and 43b. In this case, the heat generation temperature (the maximum temperature reached by the heat generating plate) can be adjusted by appropriately setting the material and the layer thickness. In the case of a heat generating plate using PTC, as described above, when the temperature rises to a predetermined temperature due to heat generation after energization, the electric resistance increases due to the PTC characteristics and the flowing current is regulated. Maintained at a predetermined temperature. Since the heat generating plate using PTC has such a self-temperature control function, a temperature control circuit becomes unnecessary.

  FIG. 5 shows a state in which the cutting board is sterilized and sterilized using the sterilizing instrument according to the present embodiment. As shown in FIG. 5 (a), in the sterilization instrument 50, the two heating plates 41a and 41b having the same configuration as the heating plate 1 in FIG. 1 are aligned so that the heating plates 43a and 43b face each other, A cutting board 53 is positioned between the heat generating plates 43a and 43b. Also in this case, as in the case of sterilization / sterilization of the above-described cloth towel / hand towel, the heating plates 41a and 41b are moved in the direction of the arrows to sandwich the cutting board 53, and the length is adjusted as shown in FIG. 5 (b). The two heat generating plates 41 a and 41 b are fixed by the possible fastening members 45 and 46. As a result, heat of a predetermined temperature generated from the heat generating plates 43a and 43b is transmitted to the cutting board 53, so that the surface of the cutting board 53 can be dried, sterilized and sterilized.

  On the other hand, FIG. 6 shows a state in which the kitchen knife is sterilized and sterilized by the sterilizing instrument according to the present embodiment. In the sterilizing instrument 60 shown in FIG. 6A, the heating plates 43a and 43b of the two heating plates 41a and 41b having the same configuration as the heating plate 1 in FIG. 1 are aligned so as to face each other, The blades (blade portions) of the knives 63a, 63b, 63c are sandwiched between the heating plates 43a, 43b. The number of knives that can be sandwiched can be appropriately selected according to the area of the heating plate and the size of the knife blade. Here again, as in the case of sterilization of the cloth towel / hand towel, the heating plates 41a, 41b are moved in the direction of the arrows so that the handle portions of the kitchen knives 63a, 63b, 63c protrude from the top of the heating plate, Put the state in between. And as shown in FIG.6 (b), the two heat generating plates 41a and 41b are fixed by the fastening members 45 and 46 which can adjust length. By carrying out like this, since the heat | fever of the predetermined temperature which generate | occur | produced from the heat generating plates 43a and 43b is transmitted to the blade of a kitchen knife, while drying the surface of a blade, it can sterilize and disinfect.

  In the above sterilizer 40, the hand towels to be sterilized and sterilized are not limited to those for kitchens. For example, hand towels to be used after returning home from home and washing and gargleing in the bathroom. And hand towels, handkerchiefs, etc. can also be dried, sterilized and sterilized. In addition, from the relationship with the time required for drying, after sterilizing / sterilizing the cloth towel / hand towel 44 with the sterilizing instrument 40, drying is performed by another process, for example, by hanging the towel cloth or cloth towel rack and drying. It becomes possible to sterilize and disinfect many towels / hand towels over time. Further, in the sterilization instrument 40, 50, 60 described above, a timer may be provided in the power supply part so that the sterilization time can be individually adjusted according to the sterilization target and the kill time of the bacteria. In this case, a setting may be made in consideration of the drying time of the cloth towel / hand towel 44 together with the sterilization / sterilization time, or a lamp or a sound source for notifying completion of sterilization / sterilization may be provided.

  Furthermore, depending on the size of the place where the sterilizer 40, 50, 60 is used, during the sterilization / sterilization, the entire sterilizer is hung by the hanging metal fittings 47a, 47b or leaned against a wall or the like. May be used. On the other hand, in an environment where the place of use can be secured, the sterilizer can be used in a state where it is placed horizontally on a flat floor or table. When using the sterilizer in a horizontal state, simply place another heat generating plate on top of the heat generating plate on which the object to be sterilized and sterilized is placed. When placed, the weight acts in a superimposed manner to sandwich the object, so that the desired drying, sterilization and sterilization can be performed. Therefore, the two heat generating plates 41a and 41b may be fixed by the fastening members 45 and 46 only when the sterilizing device is stood or suspended. Also, when the sterilizer is used for sterilization or sterilization of a specific object, such as when the object to be sterilized or sterilized is determined, the heat generating plate should be made smaller and lighter according to the size of the object. You may plan.

  As described above, the sterilizing instrument according to the present embodiment positions a cloth, hand towel, cutting board, etc., which are to be sterilized and sterilized, between two flat heating elements arranged opposite to each other. The object is sterilized and sterilized by the generated heat while maintaining the state in which heat from the heating element is transmitted to the sterilization and sterilization target. Thus, not only the structure of the sterilizer itself is simplified by the structure in which the object is sandwiched between the two heat generating plates, but heat can be uniformly conducted to the object, so that sterilization and sterilization can be performed efficiently. The sterilization ability as a sterilizer is improved. When the object is a cloth, a towel, etc., it is possible to stretch the cocoon with two heating plates. Further, by using a heating element having a positive temperature characteristic (PTC) as a planar heating element, it is possible to provide a sterilizing instrument with high energy efficiency and excellent durability without fear of overheating. As a result, kitchen utensils can always be maintained in a hygienic state, so that there is no need to replace the cloths with new ones each time they are used.

  Next, a heat retaining device according to an embodiment of the present invention will be described. FIG. 7 shows an example of a heat retaining device according to the present embodiment. The heat retaining device 70 uses a heat generating plate 71 composed of a holding plate 75 and a heat generating plate 73 for heat retaining purposes. In addition, about the structure, structure, etc. of the heat generating plate 71, since it is the same as the heat generating plate used for the sterilization instrument mentioned above, detailed description is abbreviate | omitted here.

  When using the heat-retaining appliance 70, place the holding plate 75 on the lower side and the heating plate 73 on the upper side, and place it horizontally on a dining table or kitchen cooking table. Is placed. The heating plate 71 is supplied with AC power via the power cord 79, whereby the heating plate 73 generates heat and reaches a predetermined temperature, so that the simmered food, soup, etc. in the placed pans 76, 78 can be kept warm. It becomes possible. The heat retention temperature is adjusted by adjusting the length of the linear heater used for the heat generating plate 73 at the time of designing and manufacturing the heat generating plate 71 or changing the thickness of the PTC material or layer. In addition, in order to achieve the purpose of keeping the hot pot immediately after cooking, the heat generating plate including the heat generating plate itself has a heat resistance that can withstand the temperature above the maximum temperature of the heat generating plate. It is required to have

  FIG. 8 shows another example of the heat retaining device according to the present embodiment. The heat retaining device 80 is the same as the heat retaining device shown in FIG. 7 in that a heat generating plate 81 including a holding plate 85 and a heat generating plate 83 is used. 7 is also used in the state where the heat retaining device 80 is placed horizontally on a dining table or kitchen table with the holding plate 85 on the lower side and the heat generating plate 83 on the upper side. However, this incubator 80 is characterized in that it can in particular keep the side dishes arranged in the small bowls 86a and 86c and the plate 86b while keeping them in their containers. That is, the heat retaining device 80 is provided with a heat retaining cover 82 that can cover the whole in a state in which a container containing sugar beet is placed on the heating plate 83. The heat insulating cover 82 is, for example, substantially the same as or slightly smaller than the heat generating plate 83, and has a height (depth) that can accommodate all of the plurality of containers placed on the heat generating plate 83. Is made of a transparent resin or the like.

  When AC power is supplied to the heat generating plate 81 of the heat retaining device 80 via the power cord 89, the heat generating plate 83 generates heat and reaches a predetermined temperature. Small plates 86a and 86c and dishes 86b with prepared foods and the like are placed on the heating plate 83, and the heat generation cover 83 is covered with a heat insulating cover 82 so as to cover the whole, so that the heat generated from the heating plate 83 is exposed to the outside. The escape is prevented, and the space formed by the heat insulating cover 82 and the heat generating plate 81 is kept at a predetermined temperature. As a result, the side dishes placed in the small bowl can be kept warm, and at the same time, the heat retaining cover 82 functions as a dust-proof means, so that the side dishes can be maintained in a sanitary state.

  In this way, by applying a heat generating plate with a simple structure to the heat insulation device, the structure of the heat insulation device itself becomes simple, and an energy-saving heat insulation device that keeps maintenance costs including electricity charges low is provided. it can. In addition, foods and side dishes that need to be kept warm can be kept warm by a simple method, so for those who provide meals, it is possible to provide meals without having to reheat the side dishes using fire etc. The recipient has the advantage of being able to have a warm meal at any time. Furthermore, it can be kept warm at a temperature suitable for cooked prepared foods and the like, and the deterioration of taste due to repeated heating can be prevented as in the conventional case. Note that a timer may be provided in the power supply portion of the heat retaining device so that the heat retaining time can be adjusted.

  As described above, the heat retaining device according to the present embodiment places a pot containing cooked food, a prepared food to be kept warm, and the like on a flat heat generating plate constituting the heat generating plate. Thus, it is possible to keep the sugar beet etc. at a temperature that is always eaten by the heat generated from the heating plate. Further, by using a heating element having a positive temperature characteristic (PTC) as a planar heating element, there is no concern about overheating, etc., and it is possible to provide a heat retention device that is light in weight, excellent in durability, etc., and having high energy efficiency.

  In addition, it is possible to use the same heat generating plate separately for a sterilization device and a heat retention device according to the purpose. In other words, the heat generating plate used for the sterilizing device is placed in a horizontal state, and the object is placed on the heat generating plate, so that the heat generating plate is applied to the heat insulating device or, conversely, used for the heat insulating device. Two heating plates can be opposed to each other, and an object can be positioned and sandwiched between them to be used as a sterilizer. On the other hand, from the viewpoint of cost, the sterilizing instrument may be constituted by a single heating plate. For example, the aspect which uses the heat retention apparatus which consists of a structure shown in FIG. 8 as a sterilization apparatus as it is can be considered. In this case, the object of sterilization and sterilization is not limited to the above example, and it is possible to sterilize or sterilize an object having a complicated shape which is not a flat plate, for example, a spoon or a fork.

1,41a, 41b Heating plate 3,43a, 43b Heating plate 5 Holding plate 7 Hanging bracket 9, 49, 79, 89 Power cord 11 Insulating substrate 13 Heating wire 15 Insulating film 17 Heating element layer 19, 29 AC power source 21 and 23 Electrode 49a, 49b Cord connection part 40, 50, 60 Sterilization instrument 43a, 43b Heat generation board 44 Cloth / hand towel 45, 46 Fastening member 53 Cutting board 63a, 63b, 63c Knife 70, 80 Insulation instrument 76, 78 Pan 82 Thermal insulation cover 86a, 86c Small bowl 86b Dish

Claims (9)

The object is positioned between the flat heating elements arranged opposite to each other, and the object is sterilized or removed by the heat generated from the heating element while maintaining the state where the object is sandwiched by the heating element. A sterilizing instrument characterized by performing bacteria. The sterilizer according to claim 1, wherein the heating element is formed by forming a heating layer having a positive temperature characteristic (PTC) on an insulating member. The sterilizing device according to claim 2, wherein a heat generation temperature by the heat generator can be set to 60 ° C to 80 ° C or more. The sterilizer according to claim 3, further comprising a timer that enables adjustment of a duration of heat generation by the heating element, wherein the duration can include a time required for drying the object. . A heat retaining device, wherein an object is placed on a flat heating element, and the object can be kept warm by heat generated from the heating element. Furthermore, the heat retention instrument of Claim 5 provided with the cover member which can cover the whole target object set forth previously. The heat-retaining device according to claim 5, wherein the heating element is formed by forming a heating layer having a positive temperature characteristic (PTC) on an insulating member. Furthermore, the heat retention instrument of Claim 5 which provided the timer which can adjust the continuation time of the said heat retention. A flat-type heating element characterized by generating heat and sterilizing or sterilizing the sandwiched object by the heat, and enabling the placed object to be kept warm.

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