JP2009285249A - Carbon dioxide gas generating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carbon dioxide gas generating apparatus capable of using at home or the like easily, and having a good effect of hyperthermia, and improving the symptoms of fatigue of lower limbs of a human body, lassitude, heaviness, swell, chill, or the like. <P>SOLUTION: The carbon dioxide gas generating apparatus 1 includes a footrest part 2 capable of placing a leg by contacting the sole, an agent storing part 3 capable of storing a carbonic acid gas generating agent and a steam generating agent, and a lower limb covering part 4 which forms a space for encircling and covering the lower limb or the instep, and the footrest part 2 is disposed at the lower part of the lower limb covering part 4 and joined, and when carbonic acid gas and steam are generated in the agent storing part 3, the carbonic acid gas and the steam are supplied into the lower limb covering part 4 from below the footrest part 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a carbon dioxide generator capable of foot bathing at home and the like.

  Many women and people who work while standing are suffering from symptoms such as fatigue, dullness, weight, swelling and coldness in the lower limbs. Foot baths are attracting attention because of the improvement of such symptoms and the comfort of warming feet, and the number of places having foot bath facilities in hot spring facilities is increasing. In addition, as a footbath device that can be used at home, a foot bath that uses hot water in a device that generates bubbles is commercially available.

  Furthermore, a blood circulation promoting device that can be used at home or the like has been proposed for the purpose of promoting blood circulation in the lower limbs of the human body or improving cooling. For example, Patent Literature 1 describes a blood circulation promoting device that includes a hot tub, a steam generating unit that supplies steam and carbon dioxide to the hot tub, and a carbon dioxide generating unit. Further, Patent Document 2 describes a blood circulation promoting device having a cover body that is attached to a local portion of the human body surface and forms a sealed space portion together with the human body surface, and means for supplying carbon dioxide gas and steam to the sealed space portion. ing.

  However, since the blood circulation promoting device described in Patent Document 1 generates steam by heating water with an electric heater and generates carbon dioxide by electrolysis, the steam generator and the carbon dioxide generator The structure is complicated. Moreover, since electricity is used, it is inferior to portability and a place to use is limited. Patent Document 2 does not specifically describe means for supplying carbon dioxide and steam.

JP 2006-34613 A JP 7-171189 A

  An object of the present invention is to provide a carbon dioxide generator that can be easily used at home, has excellent thermal effects, and can improve symptoms such as fatigue, dullness, weight, swelling, and coldness of the lower limbs of the human body. There is.

  The present invention relates to a footrest that can be placed with the sole in contact with the foot, an agent storage that can store a carbon dioxide generating agent and a steam generating agent, and a space that surrounds and covers the lower limbs or the instep of the foot A pair of footrests in the footrest portion, wherein the footrest portion is disposed below the footrest portion, the agent storage portion is disposed below the footrest portion, and When a carbon dioxide gas and steam supply port is provided between the positions, and carbon dioxide gas and steam are generated in the agent storage part, the carbon dioxide gas and steam are supplied from the supply port of the footrest part into the lower limb cover part. The above object is achieved by providing a carbon dioxide gas generating apparatus.

  Further, the present invention can store a carbon dioxide generating mechanism used in the carbon dioxide generating device, that is, a footrest portion on which a foot can be placed in contact with the sole, a carbon dioxide generating agent and a steam generating agent. An agent storage portion, the agent storage portion is disposed below the footrest portion, a carbon dioxide and steam supply port is provided between a pair of footrest positions in the footrest portion, When the carbon dioxide gas and the steam are generated, the carbon dioxide gas generation mechanism is provided so that the carbon dioxide gas and the steam are supplied from the supply port of the footrest part to the outside of the agent storage part.

  According to the carbon dioxide generator of the present invention, carbon dioxide and steam can be generated by simple means, and sufficient and sufficient carbon dioxide and steam can be brought into contact with the lower limbs of the human body. The thermal effect of steam can improve symptoms such as tiredness, dullness, weight, swelling and coldness of the lower limbs, and can give the comfort of warming the lower limbs like footbaths.

  Hereinafter, the carbon dioxide generator of the present invention is explained based on the preferred embodiment. FIG. 1 shows the carbon dioxide generator according to the first embodiment of the present invention in a state where it is worn on the lower limb.

  A carbon dioxide generator 1 shown in FIG. 1 includes a carbon dioxide generating mechanism 11 for generating carbon dioxide and steam, and a lower limb cover 4 that surrounds and covers a lower limb or an instep. Yes. The carbon dioxide generating mechanism 11 is disposed below the lower limb cover 4.

  As shown in FIGS. 2 to 4, the carbon dioxide generating mechanism 11 is an agent that can store a footrest 2 that can place a foot with the sole contacted, and a carbon dioxide generating agent and a steam generating agent 32. The storage part 3 is comprised. The agent storage unit 3 is disposed below the footrest 2. The footrest 2 is provided with a pair of footrest positions 21 for placing the foot in contact with the soles, and between the pair of footrest positions 21, carbon dioxide and steam supply ports 22 are provided. Is provided. Carbon dioxide gas and steam generated in the agent storage unit 3 are supplied into the lower limb cover unit 4 from the supply port 22 of the footrest unit 2.

  Further, the carbon dioxide generating mechanism 11 will be described in detail. The outer shapes of the footrest 2 and the agent storage 3 are substantially the same vertically long rectangles in plan view so that they can be fitted to each other as will be described later. Is formed.

  As shown in FIG. 2, the footrest portion 2 includes a main body portion 25 and a seat 26. The main body 25 has a lid shape including a rectangular top plate 25a in plan view and four side plates 25b depending from four sides of the top plate 25a. The upper surface of the top plate 25a is a substantially flat surface. A number of through holes 27 are formed in the top plate 25a. The through hole 27 has a substantially square shape in plan view. The through hole 27 is disposed along the width direction (X) and the longitudinal direction (Y) of the footrest position 21. The portions of the top plate 25a excluding the through holes 27 have a lattice shape in plan view.

Two sheets 26 are arranged on the top surface of the top plate 25a. The seat 26 is disposed at the footrest position 21 described above. The two sheets 26 have the same shape. The sheet 26 includes, for example, polyolefin resins such as polyethylene and polypropylene, polyamide resins, fluororesins such as Teflon (registered trademark), resins such as polycarbonate, polyethylene terephthalate, and polyvinyl chloride; natural rubber, isobrene rubber, butadiene rubber, styrene butadiene rubber, It is made of rubber such as butyl rubber, nitrile rubber, ethylene propylene rubber, chlorobrene rubber, acrylic rubber, urethane rubber, silicone rubber, fluorine rubber, ethylene vinyl acetate rubber, or the like. A large number of small protrusions 23 are provided on the upper surface of each sheet 26 so as to form a row over the entire area of the sheet 26. Each row of the small protrusions 23 is arranged in parallel with the longitudinal direction and the width direction of the footrest position 21. Small projection 23 is Ryakukiri body, the bottom area is at 1.7mm ² ~80mm ² mm, but the height of about 1 mm to 15 mm. Thereby, minute irregularities are formed on the surface of the footrest position 21. The minute unevenness and the above-described through hole 27 allow the heat of the steam to be appropriately transmitted to the surface of the footrest position 21 so that the sole of the user is appropriately heated.

  As shown in FIG. 3, the supply port 22 of the footrest 2 has an oval shape in plan view. The major axis direction of the supply port 22 coincides with the width direction of the footrest 2. The supply port 22 is surrounded by a cylindrical body 24. The cylindrical body 24 can be attached to and detached from the supply port 22. As shown in FIG. 3, the cylindrical body 24 is fitted into the supply port 22 by fitting the cylindrical body 24 into a step provided on the periphery of the supply port 22. . The cylindrical body 24 preferably has such a height that at least the foot portion is displaced from the footrest position and does not reach the supply port. In particular, the carbon dioxide gas and the steam supplied from the supply port 22 are the feet of the user. It is preferable to have such a height that it is not directly injected into the nozzle. For example, the upper end of the cylindrical body 24 can be set so that the upper edge of the cylindrical body 24 is located above the user's heel placed on the footrest 2, thereby Gas and steam are not directly injected into the heel and can be directed upwards of the lower limb cover.

  It is preferable that the length of the footrest 2 in the width direction and the longitudinal direction is such that the carbon dioxide generating mechanism 11 is compact and a sense of stability is obtained when the foot is put on. From this viewpoint, the length in the width direction of the footrest portion 2 is preferably 100 mm to 300 mm, and particularly preferably 100 to 200 mm. Further, the length in the longitudinal direction is preferably 180 mm to 300 mm, particularly preferably 180 to 250 mm.

  As shown in FIG. 4, the agent storage unit 3 is a box-like body having an opening on the upper surface. The agent storage unit 3 can store a carbon dioxide gas generating agent and a steam generating agent 32. The footrest 2 described above is placed on the upper edge of the peripheral wall of the box-shaped body. A step portion is provided on the upper edge of the peripheral wall of the opening of the agent storage portion 3, and by inserting the footrest portion 2 into the step portion, the footrest portion 2 and the agent storage portion 3 are mutually connected. Fitted together.

  On the upper surface of the bottom surface of the agent storage unit 3, ribs 31 are provided for placing the carbon dioxide generating agent and the steam generating agent 32 on the bottom surface. A total of six ribs 31 are provided at three positions corresponding to the lower positions of the pair of footrest positions 21. Each of the ribs 31 is vertically long in plan view. Of the three ribs arranged below one side of the pair of footrest positions 21, two are in the vicinity of both end portions in the width direction of the footrest portion 2, and the other one is the center in the longitudinal direction. It is the vicinity of the part. The ribs arranged in the vicinity of both ends in the width direction of the footrest portion 2 have the longitudinal direction thereof coincident with the longitudinal direction of the footrest portion 2, and the ribs disposed in the vicinity of the central portion in the longitudinal direction of the footrest portion 2 are The longitudinal direction coincides with the width direction of the footrest 2. In the present invention, the rib 31 functions to determine the location where the carbon dioxide generating agent and the steam generating agent 32 are installed, so the shape of the rib 31 may be circular or elliptical, and the shape, number, height Can be set according to the type, shape, size, etc. of the generating agent.

  The carbon dioxide gas generating agent and the steam generating agent 32 are stored one tablet below each of the pair of footrest positions 21, and a total of two tablets are stored inside the agent storage portion 3. These ribs and the side surface in the longitudinal direction inside the agent storage unit 3 are placed on the inner bottom surface of the agent storage unit 3.

  The footrest portion 2 and the agent storage portion 3 are made of plastic, for example, a polyolefin resin such as polyethylene or polypropylene, a polyamide resin, a fluororesin such as Teflon (registered trademark), or a resin such as polycarbonate, polyethylene terephthalate, or polyvinyl chloride. As described above, they are formed so that they can be fitted together. In the state where the footrest 2 and the agent storage 3 are fitted together, the carbon dioxide gas and steam generated in the agent storage 3 are supplied to the outside of the agent storage 3 through the supply port 22. It is. As shown in FIG. 4, in the portion corresponding to the back surface of the footrest position 21 in the footrest portion 2, through holes 27 that are substantially square in plan view are arranged along the width direction and the longitudinal direction of the footrest position 21. The portion of the back surface excluding the through hole 27 has a lattice shape in plan view. The through hole 27 is closed by a seat 26 attached to the upper surface of the main body 25 of the footrest 2. Therefore, when steam heat is transmitted to the sole contact surface, the carbon dioxide gas and steam generated in the agent storage unit 3 are not ejected through the through hole 27. The steam heat is appropriately transmitted to the sole contact surface by the through holes 27 and the minute irregularities on the surface of the footrest position 21 described above, so that the user's sole is appropriately warmed. In the present invention, the footrest portion 2 is preferably made of polyethylene, polypropylene, polycarbonate, polyethylene terephthalate, or polyamide, from the viewpoint of moderately warming the user's sole, ease of manufacture, and durability. Is preferably polypropylene, natural rubber, butadiene rubber, styrene butadiene rubber, or silicone rubber.

  The lower limb cover part 4 is a cylindrical product made of a plastic film, and the footrest part 2 and the agent storage part 3 are included in the lower limb cover part 4 as shown in FIG. Moreover, as shown in FIG. 1, the lower limb cover part 4 is provided with a fixing band 41 for fixing the lower limb cover part 4 to the lower limb of the human body at the periphery of the upper opening.

  The rise of carbon dioxide and steam from inside the agent storage part 3 to the lower limb cover part 4 is such that the carbon dioxide concentration in the lower limb cover part 4 is 1% or more, particularly 20 to 100%, and the steam generation rate is 0.05 g / L. As mentioned above, it is preferable from a viewpoint of the thermal effect with respect to skin, etc. to raise carbon dioxide gas and steam so that it may become 0.2-10 g / L especially. The measurement method of the carbon dioxide gas concentration in the lower limb cover part 4 and the steam generation rate is as follows.

Method for measuring carbon dioxide concentration and steam generation rate:
A 30 cm × 15 cm × 45 cm sealed space (space volume: 20.25 L) was constituted by a framework and a PE bag as a measurement space, and carbon dioxide gas and steam were generated therein. The carbon dioxide concentration was measured 15 minutes after the start of carbon dioxide generation using the gas in the sealed space using a gas detector tube No. 2HT for detecting carbon dioxide (Gastech). The steam generation ratio was determined as a value per unit volume of the sealed space by collecting the water generated in the sealed space 15 minutes after the start of steam generation and measuring the weight.

Area of the upper end of the tubular body 24 in plan view, it is preferred for the space as the carbon dioxide concentration and the steam generation rate of the is 700mm ² ~20000mm ^2, particularly 1000mm ² ~10000mm ^2. In addition, the vertical length of the cylindrical body 24 is preferably 0 to 200 mm so that carbon dioxide and steam can reach the entire lower part of the space. Particularly, carbon dioxide and steam supplied from the supply port 22 are used. It is preferable that it is 20-150 mm so that it may not be sprayed directly on a person's foot. For example, in FIG. 1, the position of the supply port is at a position over the heel, so that the height of the cylindrical body 24 exceeds the heel so that it is not directly injected into the foot.
In this embodiment, the area of the upper end of the cylindrical body 24 in plan view is 3450 mm ² , and the vertical length of the cylindrical body 24 is 50 mm.

As the carbon dioxide generating agent and the steam generating agent 32 used in the apparatus of the present invention, an integrated agent that generates carbon dioxide and steam by adding water is preferable from the viewpoints of simplicity and safety. This monolithic agent contains a exothermic substance that generates heat and generates steam by a hydration reaction, and a carbonate and an organic acid that generate carbon dioxide gas by adding water.
Examples of the exothermic substance include inorganic salts such as calcium oxide, magnesium sulfate, aluminum sulfate, calcium sulfate, calcium chloride, magnesium chloride, and aluminum chloride, activated zeolite, and the like. These pyrogens are polyethylene glycol (PEG), dextrin, xanthan gum, starch, guar gum, carrageenan, agar, mannan, gelatin, collagen, methylcellulose, ethylcellulose, carboxymethylcellulose, casein, alginic acid, polyvinyl alcohol, polyacrylate, soluble Those that have been surface-treated with a water-soluble polymer such as starch, albumin, alginate, etc. in a conventional manner are preferred.
Examples of the carbonate include sodium bicarbonate, sodium carbonate, magnesium carbonate, potassium carbonate, potassium bicarbonate, sodium sesquicarbonate, etc., and examples of the organic acid include fumaric acid, succinic acid, malic acid, adipic acid, tartaric acid, citric acid, and the like. An acid, malonic acid, maleic acid, etc. are mentioned. These carbonates and organic acids can also be surface-treated with a water-soluble polymer in the same manner as the exothermic substance.

  The integrated dosage form may be in the form of a powder, a sheet, etc. in addition to a tablet, or may be used in one or one packaging unit, or a plurality of same dosage forms or different dosage forms may be used. A plurality of them can be used in combination.

  The integrated agent has a carbon dioxide concentration and a steam generation ratio in the lower limb cover 5 within the above-described ranges (a carbon dioxide concentration of 1% or more and a steam generation ratio of 0.05 g / L or more) for 3 to 30 minutes, It is preferable to generate carbon dioxide and steam so that it can be maintained for 5 to 20 minutes. As such an integral-type agent, it is preferable to properly use a case where a plurality of agents of the same dosage form are used and a case where two or more kinds of tablets having different disintegration properties at the time of water addition are used. When a plurality of agents of the same dosage form are used, the generation amount of carbon dioxide and steam and the calorific value can be stabilized at a constant value. When using 2 or more types of tablets with different disintegration properties when adding water, tablets that disintegrate quickly when water is added generate heat immediately, and tablets that disintegrate slowly when water is added generate heat gradually. By using two or more kinds of tablets having different properties, the calorific value can be controlled so that the steam warmth is immediately felt and maintained. The disintegration property of the tablet can be appropriately adjusted depending on the tablet formulation, tableting pressure, and the like.

  The integral agent usually has a content of the exothermic substance of 3 to 600 g, preferably 20 to 120 g, a content of the carbonate of 5 to 80 g, preferably 10 to 40 g, per one or one packaging unit. The content of the organic acid is 8 to 120 g, preferably 20 to 60 g. In addition, as a tablet having different disintegration, when a tablet having a fast disintegration at the time of water addition and a tablet having a slow disintegration at the time of water addition are used, the tablet having a fast disintegration at the time of water addition has a content of the pyrogen. 3 to 300 g, preferably 10 to 60 g, the carbonate content is 1 to 20 g, preferably 3 to 10 g, and the organic acid content is 2 to 40 g, preferably 4 to 16 g. The tablet with slow disintegration is 3 to 300 g, preferably 10 to 60 g, the carbonate content is 4 to 80 g, preferably 10 to 30 g, and the organic acid content. Is 8 to 120 g, preferably 15 to 45 g.

In the case where a plurality of agents of the same dosage form are used as the integrated agent, a preferred example of a tablet is shown below.
Formula: Baking soda 12.5g
18.5 g of fumaric acid
Calcium oxide 30.0g
Tableting pressure: 12MPa
Tablet size: Diameter 49mm x Height 20mm
The tablet has a carbon dioxide gas concentration of 17% (the volume of the lower limb cover is 20 L), and the amount of steam generated is about 10 g (the steam generation rate is about 0.5 g / L when the volume of the lower limb cover is 20 L). The volume of the lower limb covering part is 20L, and the two tablets are used.

Moreover, a preferable example in the case of using 2 or more types of tablets (A, B) having different disintegration properties upon addition of water as an integrated agent is shown below.
Agent A <Tablets that disintegrate quickly when water is added>
Prescription: baking soda 5.7g
8.4 g of fumaric acid
Calcium oxide 30.0g
Tableting pressure: 16MPa
Tablet size: Diameter 49mm x Height 19mm
The tablet has a carbon dioxide gas concentration of 9% (the volume of the lower limb cover is 20 L), and the amount of steam generated is about 10 g (the steam generation rate is about 0.5 g / L when the volume of the lower limb cover is 20 L).
Agent B <Slow disintegrating tablet when added with water>
Prescription: baking soda 19.4g
28.7 g of fumaric acid
Calcium oxide 30.0g
Tableting pressure: 4MPa
Tablet size: Diameter 49mm x Height 28mm
This tablet has a carbon dioxide gas concentration of 21% (the volume of the lower limb covering part is 20 L) and a steam generation amount of about 10 g (a steam generation rate is about 0.5 g / L when the volume of the lower limb covering part is 20 L).
The volume of the lower limb covering part is 20 L, and one A agent and one B agent are used.

Examples of powdery agents as an integrated agent are shown below.
(Powder example 1)
Prescription: Baking soda 25.0g
Citric acid 61.0g
Calcium oxide 60.0g
(Powder example 2)
Formula: Sodium carbonate 32.0g
Citric acid 61.0g
Calcium oxide 60.0g
(Powdered example 3)
Formula: Sodium carbonate 32.0g
Fumaric acid 37.0g
Calcium oxide 60.0g

  These tablets are used by storing them in an agent-containing bag made of gauze or the like that can permeate water, carbon dioxide and steam to facilitate handling and handling of tablet residues after use. It is preferable to do.

  The amount of water added to the carbon dioxide generating agent and the steam generating agent 32 is 0.3 to 3 times the mass of the carbon dioxide generating agent (mass basis, the same shall apply hereinafter), with respect to the steam generating agent. Is preferably 0.3 to 3 times the amount, and 0.3 to 3 times the amount is preferred for the integrated agent in which the carbon dioxide generator and the steam generator are combined.

Next, based on the carbon dioxide generator 1 of the present embodiment described above, one usage mode of the carbon dioxide generator 1 of the present invention will be described.
In using the carbon dioxide generator 1 of this embodiment, first, as shown in FIG. 4, the carbon dioxide generator and the steam generator 32 that generate carbon dioxide and steam by adding water are added to the agent storage unit 3. After being installed along the provided ribs 31, the footrest 2 and the agent storage 3 are fitted together, and then the footrest 2 and the agent storage 3 are placed inside the lower limb cover 4 as shown in FIG. And install.

  Next, for example, while sitting on a chair or the like, both feet are put into the lower limb cover portion 4 from the upper opening of the lower limb cover portion 4 and both feet are placed on the footrest position 21 of the footrest portion 2. Next, as shown in FIG. 5A, water 8 put in a cup 7 or the like is poured into the agent storage unit 3 from above the carbon dioxide and steam supply port 22. Thereby, the carbon dioxide generating agent and the steam generating agent 7 installed in the storage unit 3 react with the water 8 and collapse, and carbon dioxide and steam begin to be generated.

  Next, the lower limb cover 4 is pulled up, and as shown in FIG. 1, the periphery of the upper opening of the lower limb cover 5 is fixed to the thigh by a fixing band 41 provided on the periphery. As a result, a continuous communication space 6 is formed across the agent storage unit 3, the footrest unit 2, and the lower limb cover unit 4 except for the upper part of the lower limb cover unit 4. Carbon dioxide gas and steam generated in the agent storage unit 3 are formed. Is supplied to the communication space 6. In general, the communication space 6 is preferably formed to have a size of about 16 to 20 L, and within that range, the carbon dioxide gas and steam of the carbon dioxide generator and the steam generator 32 stored in the agent storage section 3. It is preferable to appropriately adjust the size according to the generation ability or the like.

  The carbon dioxide gas and steam generated in the agent storage part 3 rises into the lower limb cover part 4 from the carbon dioxide and steam supply port 22 as shown by the arrows in FIG. Since the top surface of the footrest 2 has an uneven shape due to a large number of small protrusions 23, the soles of both feet are not in full contact with the footrest position 21, and the soles of both feet and the footrest position 21 A gap is formed between the two. Therefore, a part of the carbon dioxide gas and the steam that has risen in the lower limb cover portion 4 enters the gap between the soles of both feet and the footrest position 21, so that the carbon dioxide and steam come into contact with the soles of both feet. be able to. Moreover, since the top | upper surface of the footrest part 2 has uneven | corrugated shape, ie, a heat-transfer buffer structure, the sole of both feet is not heated too much by the heat_generation | fever at the time of steam generation. Further, by arranging the small projections 23 in accordance with the position of the sole on the sole, a sole stimulation effect can be given.

  Next, the carbon dioxide generator of 2nd Embodiment of this invention is demonstrated. The carbon dioxide generator of the second embodiment is the same as that of the first embodiment except that the supply port 22 having the shape shown in FIG. 6 is used instead of the oval supply port 22 in the carbon dioxide generation mechanism 11 of the first embodiment. It has the same configuration as. Therefore, hereinafter, differences from the first embodiment will be mainly described, and the description described above with respect to the first embodiment is applied to points that are not particularly described.

  As shown in FIG. 6, the supply port 22 of the footrest 2 in the second embodiment is configured by three small supply ports arranged in a line along the width direction of the footrest 2. Of the three small supply ports, the first small supply ports 221 and 222 located on the front side and the rear side in the width direction of the footrest 2 are circular in the same size in plan view. The 2nd small supply port 223 located in the center part of the width direction of the footrest part 2 is substantially elliptical in planar view. The second small supply port 223 is provided such that its long axis direction coincides with the width direction of the footrest 2. These small supply ports are arranged and / or arranged so that carbon dioxide gas and steam supplied from the small supply ports are not directly sprayed to a portion of the user's foot below the heel. It has such a planar view shape.

  For example, with respect to the first small supply ports 221 and 222, the arrangement positions are biased toward the front end side and the rear end side in the width direction of the footrest portion 2, thereby being supplied from these small supply ports 221 and 222. Carbon dioxide gas and steam are prevented from being directly jetted to the lower part of the foot than the heel. With respect to the second small supply port 223, the width of the second small supply port 223 is narrower than that of the supply port 22 in the first embodiment, thereby increasing the distance between the second small supply port 223 and the user's foot. The carbon dioxide gas and the steam supplied from the supply port 223 are not directly jetted to a portion below the heel in the foot.

  Specifically, with respect to the first small supply ports 221, 222, their diameter is set to 20 to 40 mm, and from the front and rear ends in the width direction of the footrest 2 to the center of each first small supply port. It is preferable to set the distance to 60 to 120 mm. Regarding the second small supply port 223, it is preferable to set the width of the widest portion (this width is equal to the minor axis of the ellipse) to 5 to 15 mm.

  The cylindrical body 24 used in the first embodiment may or may not be attached to each of the first small supply ports 221 and 222 and the second small supply port 223 described above. When the cylindrical body is attached, the position of the upper end thereof may be above the user's heel, or may be the same as or below the heel.

  As mentioned above, although the carbon dioxide generator of the present invention has been described based on the preferred embodiments shown in FIGS. 1 to 6, the carbon dioxide generator of the present invention is not limited to these embodiments. It can be changed. The footrest portion 2 only needs to be able to place the foot with the sole contact, and the agent storage portion 3 only needs to be able to store the carbon dioxide generating agent and the steam generating agent. The lower limb covering portion 4 may be anything that can form a space that surrounds and covers the lower limbs or the instep of the foot, and the footrest portion 2, the agent storage portion 3, and the lower limb covering portion 4 are The footrest portion 2 may be disposed below, and the carbon dioxide gas and steam generated in the agent storage portion 3 may be configured to be supplied into the lower limb cover portion 4 from below the footrest portion 2. For example, in the above-described embodiment, the footrest portion 2 and the agent storage portion 3 are included in the lower limb cover portion 4, but instead of this, as shown in FIG. It is good also as a structure which joins the periphery of a lower opening part, and the side part of the cylindrical body 24 with the annular coupling tool 42. FIG. Further, the lower limb covering portion 4 is not necessarily a cylindrical body made of plastic film, and may be a box formed of, for example, a plastic plate.

  Further, in the above-described embodiment, the through holes 27 that are substantially square in plan view are arranged on the surface of the main body of the footrest portion 21 along the width direction and the longitudinal direction of the footrest position 21, and the footrests excluding the through holes 27. The portion of the main body surface of the portion 21 is configured to have a lattice shape in a plan view, but instead, a through hole having a shape other than a substantially square shape such as a circle, an ellipse, or a rhombus in a plan view. 27 may be disposed along the width direction and the longitudinal direction of the footrest position 21.

  In the above-described embodiment, the cylindrical body 24 protrudes so as to surround the peripheral edge of the carbon dioxide and steam supply port 22, but it does not have to be the same height over the entire periphery, and surrounds the whole. You don't have to leave. Alternatively, a partition plate may be provided between the supply port 22 and each of the pair of footrest positions 21. Carbon dioxide and steam should just be comprised so that it may not be directly injected below the heel of a user's foot | leg via the supply port 22. FIG.

  Further, in the above-described embodiment, the sole contact surface that is the surface of the footrest position 21 is substantially flat, but instead of this, as shown in FIG. It is good also as a convex-shaped curved surface seeing from a longitudinal direction where the center part of the width direction part of the mounting part 2 protruded with respect to the width direction both ends.

  In the above-described embodiment, the carbon dioxide and steam supply ports 22 are provided between the pair of footrest positions 21, but the carbon dioxide and steam supply ports 22 are disposed at other positions. May be. Furthermore, in the first embodiment, the shape of the supply port 22 is an oval shape in a plan view, but instead, the shape of the supply port 22 may be a rhombus or a circle in a plan view. There may be a plurality of places as well as places. For example, the shape of the supply port 22 may be a shape as shown in FIGS. 9A to 9C in plan view. Each supply port 22 shown in the figure is provided along the width direction at the longitudinal center of the footrest. In FIG. 9A, the position in which the elliptical supply port whose major axis direction coincides with the width direction of the footrest 2 in the plan view is biased toward the front end side and the rear end side in the width direction of the footrest 2. One by one. In FIG. 9B, one supply port having a shape in which two rhombus-shaped end portions are coupled at the center in the width direction in plan view is provided along the width direction. In FIG. 9C, one dumbbell-shaped supply port is provided along the width direction in plan view.

  Moreover, in 2nd Embodiment, the supply port 22 of the footrest part 2 is high so that the carbon dioxide gas and steam supplied from this supply port 22 may not be directly injected into the site | part below the heel in a user's foot | leg part. The supply port 222 surrounded by the cylindrical body 24, the supply port 221 disposed at a position where it is not directly injected into the part, and the supply having a planar view shape so as not to be directly injected into the part However, instead of this, it is provided with a supply port that is arranged at a position where it is not directly injected into the part and has a shape in plan view so as not to be directly injected into the part. It may be a thing.

  Moreover, in the above-mentioned embodiment, although the back surface part of the footrest position 21 in the footrest part 2 was made into the grid | lattice-like uneven | corrugated shape as shown in FIG. 4, it replaced with this and made it as a thin plate about 2-3 mm in thickness. Also good. Any structure may be used as long as the steam heat generated by the generation of carbon dioxide and steam can sufficiently warm the sole of the user through the footrest position 21.

  Further, from the viewpoint of heat transfer buffering, the footrest plate 21 may be a multilayer structure in which an air layer or a heat storage liquid layer is provided therein, or may be a closed cell structure such as urethane foam. Further, a heat shield plate may be provided under the foot placement plate 21 so that heat generated when steam is generated in the agent storage unit 3 is not directly transmitted to the lower surface of the foot placement plate 21.

  Further, by changing the arrangement of the ribs 31 arranged on the inner bottom surface of the agent storage unit 3, the carbon dioxide generating agent and the steam generating agent 32 are arranged close to the supply port 22 or far away in plan view. It is possible.

  Moreover, in the above-mentioned embodiment, although the footrest part 2 and the agent storage part 3 are rectangular, it can replace with this and can also be made into a polygon, an ellipse, etc.

  The carbon dioxide generating mechanism 11 constituting the carbon dioxide generating device 1 of the above-described embodiment is normally used in combination with the lower limb cover 4 as in the above-described embodiment, but appropriately combined with other components. It can be used alone or sold as a product.

It is a perspective view which shows the state with which the carbon dioxide generator of 1st Embodiment of this invention was mounted | worn with the leg. FIG. 2 is a perspective view showing a carbon dioxide gas generation mechanism used in the embodiment shown in FIG. It is a disassembled perspective view of the carbon dioxide generation mechanism used in the embodiment shown in FIG. It is a perspective view shown with an agent storage part in the state which turned the footrest part of the carbon dioxide generation mechanism used in the embodiment shown in Drawing 1 upside down. (A) is a perspective view which shows the state which adds water to the carbon dioxide generator and steam generator accommodated in the agent storage part in embodiment shown in FIG. 1, (b) is this carbon dioxide generator and steam. It is a perspective part which shows the state which the carbon dioxide steam generate | occur | produced from the generating agent. It is a top view which shows the carbon dioxide generation mechanism used in 2nd Embodiment of this invention. It is a front view which abbreviate | omits and shows the state which mounted | wore the leg with other embodiment of the carbon dioxide generator of this invention. It is a perspective view which shows the carbon dioxide generation mechanism used in other embodiment of this invention. It is a top view which shows the carbon dioxide generation mechanism used in other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Carbon dioxide generator 11 Carbon dioxide generating mechanism 2 Foot rest part 21 Foot rest position 22 Carbon dioxide and steam supply port 24 Tubular body 3 Agent storage part 31 Rib 32 Carbon dioxide generator and steam generator 4 Lower limb cover part 6 Communication space

Claims (6)

Lower leg that forms a space that surrounds and covers the lower leg or the instep of the foot, a footrest that can be placed with the sole in contact with the foot, an agent storage that can store a carbon dioxide generator and a steam generator A cover portion,
The footrest portion is disposed below the lower limb cover portion, the agent storage portion is disposed below the footrest portion, and a supply port for carbon dioxide gas and steam between a pair of footrest positions in the footrest portion Provided,
A carbon dioxide generator that is configured to supply carbon dioxide and steam from the supply port of the footrest into the lower limb cover when carbon dioxide and steam are generated in the agent storage portion.   The supply port of the footrest portion is surrounded by a cylindrical body having a height such that carbon dioxide gas and steam supplied from the supply port are not directly sprayed to a portion below the heel of the user's foot. The carbon dioxide generator according to claim 1, wherein the carbon dioxide generator is disposed at such a position and / or has such a planar view shape.   A sealed communication space is formed across the agent storage portion, the footrest portion, and the lower limb cover portion except for the upper portion of the lower limb cover portion, and the carbon dioxide gas and steam generated in the agent storage portion are The carbon dioxide generator according to claim 1 or 2, wherein the carbon dioxide generator is supplied to the communication space.   The said agent storage part is a box-shaped body which has an opening part in an upper surface, The said footrest part is mounted in the upper edge of the surrounding wall of this box-shaped body. Gas generator.   The said footrest part consists of a heat-transfer buffer structure, The carbon dioxide generator in any one of Claims 1-4. Comprising a footrest portion that can be placed with the sole in contact with the sole, and an agent storage portion that can store a carbon dioxide gas generating agent and a steam generating agent;
The agent storage part is disposed below the footrest part, and a carbon dioxide gas and steam supply port is provided between a pair of footrest positions in the footrest part,
A carbon dioxide generating mechanism that generates carbon dioxide and steam from the supply port of the footrest when the carbon dioxide and steam are generated in the agent storage.

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