JP2008136369A - Heat-insulating tool for pet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat-insulating tool capable of effectively retaining the heat of a living body, such as pet, when temperature is low in winter, or the like, by solving the problems of conventional techniques. <P>SOLUTION: The heat generated by a heat generator is transmitted rapidly to the whole sheet by a heat-retaining part, and is transmitted to the surface of the sheet, while controlling the temperature of the heat generator to a proper temperature by a heat-insulating part by laminating a material, having a low specific heat, such as aluminum liner on an organic member having fine bubbles on the surface, such as sheet-shaped foamed polyurethane to process them into one sheet shape; further, laminating the sheets so as to keep the heat-insulating parts in contact with one another, so as to leave a space into the center of which the heat generator can be inserted freely, by fusing or sticking the peripheries thereof. The temperature that appears on the sheet surface can be set freely, by selecting the thickness of the heat-insulating part, the material to be used, and the like. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heat retaining device, or to a heat retaining device that can appropriately warm a living body at a low temperature such as in winter and provide a comfortable living environment.

  In order to provide a comfortable environment for pets etc. kept at home, such as dogs and cats, at low temperatures in winter, various types of heat insulation devices for pets have been proposed. Among these heat retaining devices, a mat that can keep the body warm by directly feeding a living body such as a pet thereon, and can keep the contact surface between the heat retaining device and the pet at a constant temperature that is comfortable for the pet. A so-called heat insulating mat is disclosed as a heat insulating device having a shape. (Patent 3595843 etc.)

  As a heat-retaining device for keeping a living body such as a pet that has been proposed so far, a foamed polyethylene having a thickness of about 2 mm and a foam of about 40 times is used as a top sheet, and a foam cushioning layer is generally used. Use a commercially available 15 μm thick polyethylene air cap (registered trademark) with a layer thickness of about 5 mm, and use an aluminum liner affixed to this lower surface as a body temperature reflective layer. It is made of foamed polyethylene that is about 10mm in length and 40 times foamed. This heat insulation layer, body temperature reflection layer, foam cushioning material layer, and top sheet layer are laminated in order from the bottom. A non-woven fabric made of polypropylene that has been processed is housed in a bag-shaped outer cover, and heat insulation sheets for living bodies such as dogs and cats have been commercialized That.

  In addition to this, an electric heater such as a planar heating element is used as a heat source, the heat source is sandwiched between foamed heat insulating materials, and the outside is coated with a material such as olefin, and a waterproof heat treatment heater is provided. Has been commercialized.

  However, in the case of the above-mentioned heat insulating mat, the use of an aluminum liner as a body temperature reflecting layer is attempted. However, regarding infrared rays actually emitted from the body temperature, an organic resin material including an air layer disposed on the body temperature reflecting layer is used. The amount of infrared rays that are absorbed and actually reach the reflective layer is very small. Also, the reflected infrared rays need to pass through the upper organic resin layer again in order to reach the pet that is to be kept warm again. In fact, the body temperature reflex may not work effectively to keep the pet warm.

  Moreover, although the foam cushioning material is used as the heat retaining layer, the resin sheet itself constituting the foam cushioning material has a heat insulating structure, and has a structure that further seals the air layer therein. For this reason, the foam cushioning material itself becomes a completely heat-insulating structure, inducing a result of refusing to let the body temperature of the pet itself reach the aluminum liner which is the reflection layer, and the mat itself after the pet sits down. There is a time lag before reaching a temperature suitable for keeping warm, especially when the ambient temperature used is 5 degrees Celsius or less, the pet moves from the mat before reaching the temperature range suitable for keeping warm. There was a difficulty that it was often seen.

Furthermore, it is difficult to heat-weld the members due to the weakness of overloading, which is a physical property of the cellular cushioning material itself to be laminated, and the members laminated by human work when processing as a product. The process of joining with adhesive tape and inserting it into a non-woven cloth cover processed into a bag shape by human work is necessary, and the labor cost of human work has a great influence on the product cost. The current situation is difficult. In addition, since the laminated members are joined by the adhesive tape, the members themselves are rubbed, and static electricity and sound are generated during use, and there are many cases where pets sensitive to sound are reluctant to use.

In addition, in products using an electric heater, it is necessary to add a safety device such as a thermostat for controlling heat generation to prevent overheating, and the price of the product itself tends to be expensive, In addition, when used in a warming device such as a dog or cat, there was a risk of destruction by living organisms.
Japanese Patent No. 3558943

  Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and to use an inexpensive so-called disposable body warmer that uses heat generated when iron powder is oxidized as a heating element. Insulated a heat insulation method that has a heat insulation part that can be freely controlled at a comfortable temperature for heat insulation, and has a heat insulation part that effectively transmits the heat generated by a small heating element to the whole heat insulation equipment, such as low temperatures in winter An object of the present invention is to provide a warming instrument that can effectively warm a living body such as a pet.

  In order to solve the above-mentioned problems, the heat-retaining device of the present invention is formed into a sheet by laminating a low specific heat material such as an aluminum liner as a heat-retaining part on an organic member having detailed bubbles on the surface, such as sheet-like urethane foam. The sheet is further laminated in a state where the heat retaining parts are in contact with each other, leaving a space in which the heating element can be freely inserted in the central part, and by welding or adhering the surrounding area, heat generation of the heating element can be achieved. The heat transfer is quickly transmitted to the entire sheet by the heat retaining part, and the heat generation part is transmitted to the sheet surface while the temperature of the heat generated by the heating element is controlled appropriately. The temperature appearing on the sheet surface can be freely set by selecting the thickness of the heat insulating portion and the material to be used. The living body in contact with the seat surface or the device holding the living body can be kept stable for a long time and at a low cost and in a comfortable environment due to the heat generation temperature freely controlled by the use environment. .

  The heat insulating device of the present invention is composed of a heat insulating part, a heat insulating part, a heat generating element holding part, a heat generating element and a heat generating element fixing part, and each member has a mat shape integrated by heat welding or bonding. In addition, it can be processed into a free shape as a design of the product, for example, by removing a punch.

  In such a heat retaining portion, the heat generated by the heating element is effectively transmitted to the entire sheet, and the surface processed into a sheet shape is subjected to mirror-like processing in order to effectively maintain the temperature inside the heat retaining device. It is preferable to apply.

  In addition, the heat insulation part uses a material that has the effect of blocking the cool air from the lower part of the floor, such as foamed urethane, that uses heat insulation equipment, and controlling the heat generated by the heating element to the appropriate temperature on the surface of the heat insulation equipment. The material is not particularly limited as long as it has a heat insulating effect. Moreover, since the lower layer part of heat insulation instrument itself also has a heat insulation structure, if the thickness of a heat insulation part is also 3 mm or more, it will not specifically limit in performance.

  Furthermore, the heating element fixing portion arranged to prevent the heating element from falling off the holding of the heating element is intended to be closed when the opening / closing port for inserting the heating element into the heat retaining device is used. It is preferable to use a member that can be freely opened and closed, such as a product name, and that has a strength capable of fixing and holding the heating element.

 Further, in the case where the heat retaining device is directly used for pets such as dogs and cats, it is preferable that the entire heat retaining device is covered with a cloth or a sheet-like cover for the purpose of preventing the heat retaining device from being destroyed by the pet's claws or bites.

  In addition, for stable oxidation exothermic reaction when using a so-called disposable body warmer that uses iron, water, vermiculite, salt, etc. as a heating element, a vent for taking in outside air should be provided above the heating element holding part. Is preferred.

As described above, according to the heat retaining device of the present invention, it is possible to effectively retain the living body at a low temperature such as in winter by effectively using an inexpensive material.

Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the drawings.
FIG. 1 shows a cross-sectional view of a preferred example of the heat retaining device 1 of the present invention. As shown in the figure, the heat insulating device 1 includes laminated heat insulating portions 2-1 and 2-2 and heat insulating portions 3-1 and 3-2, and a heating element 5 is inserted and held in the center of the heat insulating device. Install the heating element holder 4 Further, at the entrance portion of the heating element holding part 4, the heating element fixing parts 6-1 and 6 that prevent the heating element from dropping off from the heat retaining device when the heating element is inserted and close the insertion opening of the heating element holding part are provided. -2 is installed. The heating element inserted into the heating element holding part of the thermal insulation device transmits the generated heat to the inner front surface of the thermal insulation instrument by the thermal insulation unit, and the thermal insulation instrument is in a situation where the temperature is lowered to a situation suitable for the environment used by the thermal insulation part. Dew on the surface.

  In addition, the heat retaining device 1 of the present invention has an integrated structure in which all members to be laminated are bonded by hot melt, thermal evaporation, thermal welding, or adhesion. Therefore, the heat retaining device 1 can be freely processed into an arbitrary shape.

  Examples of the material for the heat retaining unit 3-1 or 3-1 include metal materials and carbon having a low specific heat capacity. In particular, the material is inexpensive and relatively light and easy to handle. It is preferable to use aluminum and an aluminum alloy processed into a sheet-like foil.

  The upper surface of the heat insulating part 2-1 needs to be formed to be flat to some extent so that the pet can ride stably, but there are no particular restrictions on the shape, etc., and there are some irregularities It may be. In the present invention, in particular, since the material of the heat insulating portion 2 is poor in hardness and is highly likely to be damaged by a pet's nail or the like, a material that is difficult for a pet's nail to enter, such as a cloth, is bonded to the upper surface or a heat retaining device. It is preferable to wrap the whole with a cloth or the like, and this can prevent the heat insulating portion 2-1 from being damaged by a pet's claw or the like placed thereon.

The material of the heat insulating portions 2-1 and 2-2 is a material having a high specific heat capacity and a low heat transfer. If the material itself is a light material, there is no need to limit the material. However, if there is a possibility that the organic solvent or the like stays in the foam material or the like, it is necessary to pay attention to the possibility that the living body may not get on the heat insulator due to the odor of the organic solvent. Moreover, regarding the thickness, there is no particular limitation as long as the heat insulation performance that the cold air on the floor does not affect the heat retaining portion 3-2 is satisfied.

  As the heating element 5, a so-called disposable warmer that is a simple warming warmer made of iron powder, water, activated carbon, vermiculite, salt, or the like can be suitably used. This disposable body warmer has a long heat generation time of around 20 hours and an average heat generation temperature of 50 ° C. or more, so that it is inexpensive and optimal for use for the purpose of keeping a living body warm.

When the so-called disposable body warmer, which is a warm hand warmer made of iron powder, water, activated carbon, vermiculite, salt, etc., is used as the heating element 5, heat is generated for the purpose of maintaining and promoting a stable exothermic reaction of these materials. It is preferable to provide a vent in the upper part of the body holding part.

It is sectional drawing which shows one suitable example of the heat retention instrument of this invention. It is a perspective view which shows the use condition of the heat retention apparatus shown in FIG. It is an enlarged view perspective view which shows the lamination | stacking state of a heat retention instrument. It is a top view which shows the state of the vent provided in the heat generating body holding | maintenance part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Thermal insulation apparatus 2-1 2-2 Heat insulation part 3-1 3-2 Thermal insulation part 4 Heating body holding part 5 Heating body 6-1 6-2 Heating body fixing | fixed part 7 External cover 8 Ventilation hole

Claims (5)

A heat insulating layer using a material having a high external specific heat, a heat insulating layer using a sheet-like material having a low specific heat, and a heating element holding portion capable of freely arranging a heating element such as a disposable body warmer. A heat insulating device characterized by having a heat generating element that can be arranged 2. The heat retaining device according to claim 1, wherein the heat retaining portion has a structure for wrapping the heating element retaining portion from above and below. The open / close part which can be freely opened and closed at the entrance portion of the heating element holding part, and a heating element fixing part which prevents the heating element from falling outside during use. Warmer The heat insulation apparatus according to any one of claims 1 to 3, wherein a cover for preventing damage is provided on an upper surface of the heat insulation apparatus main body. The heat retaining device according to any one of claims 1 to 4, wherein the heat retaining portion and the heat generating member holding portion have ventilation holes for the purpose of stabilizing an oxidation reaction of the heat generating member.