JPH0633443U - flower pot - Google Patents

Abstract

(57) [Summary] [Construction] The flowerpot 10 has a main body 11, and a plurality of heaters 1 ... Are fixed to the side surface 11a of the main body 11 at predetermined intervals. On the outside of the main body portion 11, the filler 16
A warming pot 15 filled with is provided. Heater 1
Is formed by covering a heating element composed of a positive temperature coefficient thermistor with an insulating case having excellent electric insulation. [Effect] The soil can be always kept at a constant temperature, and tropical and subtropical plants can be wintered outdoors. Therefore, the plant is not exposed to sufficient sunlight to cause poor growth. Also, taller plants can be overwintered.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flower pot used for cultivating tropical and subtropical plants such as ornamental bananas in regions where temperatures are lower than those in the tropical and subtropical regions.

[0002]

[Prior art]

 Generally, tropical and subtropical plants such as bananas and pineapples are cultivated in low temperature areas throughout the year in greenhouses maintained at a constant temperature. However, in order to provide a warm room, it is necessary to secure a private space and it is expensive, so for example, when the above tropical and subtropical plants are cultivated at home for ornamental use, it is usually used in the garden or in the summer. While growing it outdoors such as on a veranda, in winter, potted plants are placed indoors (indoors) to allow them to overwinter.

[0003] Many tropical and subtropical plants are vegetatively propagated plants that grow on tubers, bulbs, and corms, and the soil temperature is more important than the temperature when overwintering. Even if the temperature is lower than 0 ° C, if the soil temperature is constantly maintained at 10 ° C or higher, the plant can survive the winter even if its leaves are a little dead.

[0004]

[Problems to be solved by the device]

 However, although the above-mentioned conventional wintering method used at home controls the room temperature, it does not control the temperature of the soil, and there is a risk that the plants will die during the winter. In addition, when tropical and subtropical plants are wintered indoors, they are not exposed to sufficient sunlight, which causes problems such as poor growth such as thin stems and weakness. However, due to poor growth, it will be difficult to produce fruit. Furthermore, in order to place the above plants indoors, it is necessary to secure a private space, and in the case of tall plants, if they grow above a certain height, they cannot be placed indoors and thus can be overwintered. It also has the problem of disappearing.

The present invention has been made in view of the above problems of the conventional wintering method, and an object thereof is to provide a flowerpot capable of controlling the temperature of the soil and allowing tropical and subtropical plants to overwinter outdoors. To do.

[0006]

[Means for Solving the Problems]

 The flowerpot of the present invention is a flowerpot used for cultivating tropical and subtropical plants in order to solve the above-mentioned problems, and includes a heating element composed of a positive temperature coefficient thermistor and a pair of power supply terminals provided on the heating element. And a pair of power supply lines connected to these power supply terminals, and an electric insulating coating member that covers the entire power supply line and electrically insulates it from the outside, and a heater is fixed to the flowerpot body.

[0007]

[Action]

 According to the above configuration, the entire body excluding the power supply line is covered with the electrically insulating coating member, and the heater electrically insulated from the outside is fixed to the flowerpot body, so that the heat generated by the heating element is For example, it can be transmitted to the soil inside the flower pot through the flower pot body made of metal. Further, since the heating element composed of the positive temperature coefficient thermistor has the self-temperature control function, the temperature control circuit and the overheat prevention circuit are not required. As a result, the soil inside the flowerpot can always be kept at a constant temperature, for example, 10 ° C or higher without providing a control device or the like in the heater, and tropical and subtropical plants can be wintered outdoors. Also, since tropical and subtropical plants are wintered outdoors, they are fully exposed to sunlight and do not cause poor growth. In addition, taller plants can be overwintered.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1 and FIG. 2, a flowerpot 10 according to the present invention has a main body 11 as a flowerpot main body formed in a cylindrical shape with a bottom. A plurality of heaters 1 containing a flat cylindrical heating element 2 (FIG. 3) are attached to the surface 11a at predetermined intervals.

The main body 11 is made of a metal plate having excellent thermal conductivity and not rusting, for example, a stainless steel plate, and soil 20 is put thereinto to make tropical and subtropical plants (hereinafter, simply referred to as a plant and a plant). 21) can be cultivated. A plurality of mounting holes (not shown) for mounting the heaters 1 ... With, for example, flat head screws and nuts are formed in the main body portion 11 on the side surface 11a at predetermined intervals. Further, the bottom surface 11b of the main body portion 11 is provided with discharge ports 11c ... For discharging excess water. The size of the main body 11 may be appropriately set according to the size of the plant 21 to be cultivated and the like. The heater 1 will be described later.

Examples of the above-mentioned plant 21 include bromeliad plants such as pineapple, bromeliad and tyransia, banana plants such as banana and herconia, ginger plants such as ginger, red ginger, white ginger and alpinia (moon peach), It is possible to cultivate Amaryllidaceae plants such as Amaryllis and Hembergiana, Araceae plants, Cannaaceae plants, Turmeric plants and the like. These plants belong to the tropical zone and subtropical plants, and many of them are vegetatively propagated by growing shoots from tubers, bulbs and corms. Each of these shoots has a growing point, but since the growing point is located in the ground or at the edge, it is more important to control the temperature of the soil 20 than to control the temperature (or room temperature) when overwintering. It is necessary to keep the temperature of the soil 20 at 10 to 30 ° C. at all times. Insulating the soil 20 in this way activates the cell tissues of tubers, bulbs, and corms, and provides an environment suitable for the growth of buds necessary for plant formation in the next generation and for the nutritional supply of plant mothers. It will be.

A heat-retaining bowl 15 is provided outside the main body 11 to cover the main body 11 to insulate and keep it warm. The heat-retaining bowl 15 is formed of a material having excellent heat insulation and heat-retaining properties, for example, a molded body such as foamed plastic or polypropylene, and has a bottomed cylindrical shape. The bottom surface 15b of the heat retaining bowl 15 is provided with a discharge port 15c for discharging the excess water discharged from the main body 11 to the outside. The size of the heat retaining bowl 15 may be appropriately set according to the size of the main body portion 11. For example, when the diameter and the height of the main body portion 11 are each 30 cm, the diameter of the heat retaining bowl 15 is The height may be 50 cm. The gap between the main body 11 and the heat insulating bowl 15 is filled with a filler 16 that holds the main body 11 and insulates and keeps the heat. The filler 16 is made of a material having excellent heat insulation and heat retaining properties, for example, a low-foaming plastic foamed about 10 times.

Next, the heater 1 attached to the main body 11 will be described with reference to an example. As shown in FIGS. 3 and 4, the heater 1 includes a heating element 2, metal terminals 3 and 3 as power supply terminals, lead wires 4 and 4 as power supply wires, and an insulating case 5 as an electrically insulating covering member. It is configured.

The heating element 2 is made of a material having a positive temperature coefficient, for example, a ceramic semiconductor whose main raw material is barium titanate, and has a low resistance from room temperature to the Curie temperature Tc (rapid change temperature). However, it is a positive temperature coefficient thermistor as a heat sensitive element having a characteristic that the resistance value sharply increases when the Curie temperature T c is exceeded. When a voltage is applied to the heating element 2 due to this characteristic, the resistance value is small at first due to the low temperature, a large current flows, and the power consumption is large, so that the temperature rises rapidly. When the temperature exceeds the Curie temperature Tc, the resistance value sharply increases, the current decreases, and the power consumption significantly decreases. As a result, the heating element 2 does not rise above a certain temperature and keeps the certain temperature stable, and has a self-temperature control function.

The Curie temperature Tc of the heating element 2 can be arbitrarily set within the range of about 30 to 250 ° C. depending on the material composition. Therefore, in the heating element 2 of this embodiment, the temperature at which the plant 21 can overwinter. The soil 20 can be kept warm, and the Curie temperature Tc may be set to, for example, 50 ° C in consideration of safety and power saving. In this case, the temperature of the soil 20 can be maintained at about 10 ° C to 30 ° C regardless of the temperature (or room temperature). The heating element 2 is formed into a flat cylindrical shape, and has metal terminals 3 connected to the upper and lower surfaces thereof, as shown in FIG.

The metal terminal 3 is formed in a flat plate shape that is substantially equal to the outer diameter of the heating element 2, and has a hole that is approximately equal to the inner diameter of the heating element 2 in the central portion. Further, the metal terminal 3 is provided with a power feeding portion 3a for connecting the lead wire 4, and the lead wire 4 is attached to each of the power feeding portions 3a and 3a.

The insulating case 5 is made of, for example, electrically insulating plastic such as polypropylene / nylon mixed resin reinforced with glass fiber, and covers the heating element 2 and the metal terminals 3 3 to seal and fix them. Is formed. Further, a fixing hole 1a used when screwing the heater 1 to the main body 11 is provided in the central portion. Further, since the insulating case 5 is formed into a flat and substantially cylindrical shape, one surface of the heater 1 can be brought into close contact with the main body portion 11, and the heat generated by the heating element 2 can be efficiently transferred to the main body portion 11. Can be communicated.

In addition, the insulating case 5 is provided on the metal terminal 3 side of the lead wires 4 and 4 so that a mechanical load is not applied to the connecting portion between the lead wire 4 and the power feeding portion 3a of the metal terminal 3 so that disconnection or the like does not occur. It also covers the end. The insulating case 5 has excellent thermal conductivity and mechanical strength, as well as waterproofness that prevents water (water vapor) from passing inside and airtightness that does not allow air to pass inside, and is provided to the plant 21. Even if water is accidentally applied to the heater 1, it will not be short-circuited internally.

As shown in FIG. 2, a plug 6 is attached to the ends of the lead wires 4 and 4 so as to facilitate connection with an external power source. For example, as shown in FIG. It is pulled out to the outside through a hole 15a provided on the side surface. The number of heaters 1 ... Attached to the main body 11 may be appropriately set according to the size of the main body 11.

With the above-described configuration, the flowerpot 10 can always keep the soil 20 at a constant temperature, for example, 10 ° C. or higher, and allow the tropical and subtropical plants 21 to overwinter even outdoors. In addition, since the tropical and subtropical plants 21 are allowed to overwinter outdoors, they are fully exposed to sunlight and do not cause poor growth. In addition, taller plants can overwinter.

In the above embodiments, the case where the main body 11 and the heat retaining bowl 15 are formed in a cylindrical shape with a bottom has been described as an example, but of course, the shapes of the main body 11 and the heat retaining bowl 15 are as described above. The present invention is not limited to the embodiment, and may be, for example, a box shape having an open upper part. Moreover, the size and material of the main body 11 and the heat retaining pot 15 or the number of plants 21 to be planted in the soil 20 are not limited to those in the above embodiment.

Further, in the above embodiment, the case where the heaters 1 ... Are attached to the side surface 11a outside the main body 11 has been described as an example, but the mounting position of the heaters 1 ... is the same as in the above embodiment. Without being limited to this, the insulating case 5 has waterproofness and airtightness in addition to electrical insulation and thermal conductivity, so that it may be attached to, for example, the side surface 11a and the bottom surface 11b. 1 may be attached. Further, in the above embodiment, the heaters 1 ... Are screwed to the main body 11, but the heaters 1 may be attached to the main body 11 with an adhesive or the like.

Further, in the above embodiment, the case where the heater 1 is formed in a flat and substantially cylindrical shape has been described as an example, but the heat generated in the heating element 2 is efficiently transmitted to the main body 11. The shape of the heater 1 is not limited to the above-described embodiment as long as it can be formed, and may be, for example, a disk shape or a rectangular parallelepiped shape.

[0024]

[Effect of device]

 As described above, the flowerpot of the present invention entirely covers the heating element composed of the positive temperature coefficient thermistor, the pair of feeding terminals provided on the heating element, and the pair of feeding lines connected to these feeding terminals. A heater including an electrically insulating coating member that electrically insulates the outside from the outside is fixed to the flowerpot body.

As a result, the heat generated by the heating element can be transmitted to the soil inside the flowerpot through the flowerpot body made of metal, for example, and the heating element including the positive temperature coefficient thermistor has a self-temperature control function. Therefore, the soil inside the flowerpot can be always kept at a constant temperature, for example, 10 ° C. or higher, without providing a controller or the like to the heater. Therefore, it is possible to make tropical and subtropical plants overwinter even outdoors.

In addition, since tropical and subtropical plants are allowed to overwinter outdoors, they are fully exposed to sunlight and do not cause poor growth. In addition, even taller plants can be overwintered.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a flowerpot showing an embodiment of the present invention.

FIG. 2 is a perspective view of the flower pot.

FIG. 3 is a schematic plan view showing a heater in a partial cross section.

FIG. 4 is a cross-sectional view of the heater.

[Explanation of symbols]

 1 Heater 2 Heating Element 3 Metal Terminal (Feeding Terminal) 4 Lead Wire (Feeding Wire) 5 Insulating Case (Electrically Insulating Coating Member) 10 Flower Pot 11 Main Body (Flower Pot Main Body) 15 Insulating Bowl 16 Filler 20 Soil 21 Plant (Tropical) And subtropical plants)

Continued Front Page (72) Creator Kozo Sakai 4-5-2, Kudo, Oji-cho, Kitakatsuki-gun, Nara Prefecture

Claims (1)

[Scope of utility model registration request] 1. A flowerpot used for cultivating tropical and subtropical plants, comprising a heating element composed of a positive temperature coefficient thermistor, a pair of power supply terminals provided on the heating element, and a pair of power supply terminals connected to these power supply terminals. A flowerpot, characterized in that a heater comprising a power supply line and an electrically insulating coating member that covers the whole and is electrically insulated from the outside is fixed to the flowerpot body.