JP2003220100A - Naturally decomposable urn and production method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a naturally decomposable urn which enables the returning thereof back to soil with ashes of dead persons by accomplishing natural decomposition thereof by the biodegradation thereof with mocroorganisms in the soil and the weathering thereof due to climatic changes spending fixed years without requiring the discarding of the urn while securing a specified heat resistance, and a production method thereof. <P>SOLUTION: Either of gypsum or clay, or both are mixed with starch at a proper rate to be formed as a main component. One or two or more of biodegradable materials and (or) inorganic materials in the form of powder, particles, a mass or pellets are added to the main component and mixed together. A glue solution is added to the mixture to be knead and then, the mixture is poured to fill a specified mold. The work thus obtained is dried at a normal temperature to make an urn with a specified shape. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、墓碑収納用の骨壺
とその製造方法に関し、詳しくは、納骨後の年月経過に
より風化されて、または土壌中の微生物による生分解さ
れて細分化し、最終的には土に戻すことができる自然分
解性骨壺、及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an urn for storing a tombstone and a method for producing the urn, and more specifically, it is weathered by the passage of time after burial or is biodegraded by microorganisms in the soil to be subdivided, The present invention relates to a naturally degradable urn that can be finally returned to soil, and a method for producing the same.

【０００２】[0002]

【従来の技術】火葬された遺体の遺骨は、骨壺に収納し
て所定場所へ安置される。これを納骨と称し、寺院や専
用建造物などの納骨堂にそのまま安置するか、または墓
地に各家毎に建立した墓碑の納骨棺（カロート）に安置
するのが一般的である。2. Description of the Related Art The remains of a cremated body are stored in an urn and placed in a predetermined place. This is called the skeleton, and it is generally placed in a skeleton hall such as a temple or a dedicated structure, or it is generally placed in a skeleton casket of a tombstone built for each house in the graveyard.

【０００３】このカロートへの納骨方法には、遺骨が収
納された骨壺をそのまま載置して埋葬する方法（骨壺埋
葬）と、骨壺から遺骨を取り出して納骨棺内の地面上に
散骨する方法（カロート内散骨）とがある。これらのい
ずれの方法を採るかは宗派や地域習慣によって区々であ
るが、都市部の小狭な墓地スペースの問題、及び死者は
最終的には土に戻るという信条的な理由などから、一般
的には後者のカロート内散骨の方法が採られている。[0003] As a method of arranging bones in the carrot, there is a method of placing the urn containing the ashes as it is and burying it (burial urn burial), and taking out the ashes from the urn and scattering the bones on the ground in the urn There is a method to do (bone scatter in carote). Which of these methods is used depends on the denomination and local customs, but due to the problem of the small cemetery space in urban areas and the belief that the dead will eventually return to the soil, The latter method of intra-carote bone scatter has been adopted.

【０００４】ところで、通常使用される骨壺は、火葬直
後の骨拾い時の骨が高温であることから、一般に陶器製
又はセラミック製などの焼結製法によって成形された耐
熱性のある骨壺が用いられている。[0004] By the way, as a commonly used urn, a heat-resistant urn which is generally formed by a sintering method such as ceramics or ceramics is used because the bones at the time of picking up bone immediately after cremation are high in temperature. Has been.

【０００５】[0005]

【発明が解決しようとする課題】しかし、上記カロート
内散骨の方法を採った場合の骨壺は、斎場から遺骨を持
ち帰るための一時的な保管容器として使用されるに過ぎ
ず、納骨後には不要な容器となり産業廃棄として処分さ
れているのが現状であった。無機硬質材である陶器製又
はセラミック製の骨壺は、焼却できず、また自然分解す
ることもないため、その廃棄には人為的に粉砕して土中
に埋め込むなどの処理をしていた。このような粉砕処理
は一時的とはいえ少なくとも思いが込められた遺骨が収
納されていたものであるため、遺族にとっては信条的に
受け入れ難い面もあった。However, the urn from the method of scatter in carote is only used as a temporary storage container for bringing back the remains from the funeral hall, and is not necessary after the burial. It was the current situation that it becomes a different container and is disposed of as industrial waste. The pottery or ceramic urn, which is an inorganic hard material, cannot be incinerated and does not decompose spontaneously. Therefore, its disposal was performed by crushing it artificially and embedding it in the soil. Although such crushing treatment was temporary, it contained at least thoughtful ashes, and it was philosophically unacceptable to the bereaved family.

【０００６】[0006]

【目的】そこで、本願発明は、上記問題点に鑑みた本願
発明者が鋭意検討のもと数々の試行錯誤を重ねた結果案
出したもので、骨壺の廃棄処理を必要とせず、所定の耐
熱性を確保しながらも一定年月を経て、土壌中の微生物
による生分解や気候変化による風化によって、自然に分
解して遺骨と共に土へ帰すことができる新規性かつ進歩
性のある自然分解性骨壺、及びその製造方法を提供する
ものである。[Purpose] Therefore, the present invention has been devised as a result of many trials and errors by the inventors of the present invention in view of the above-mentioned problems, and does not require disposal of the urn. It is a novel and progressive natural degradability that can be naturally decomposed and returned to the soil along with the remains as a result of biodegradation by microorganisms in soil and weathering due to climate change over a certain period of time while ensuring heat resistance. An urn jar and a method for manufacturing the same.

【０００７】[0007]

【課題を解決するための手段】上記課題を解決するため
本願発明は次のように構成している。すなわち、自然分
解性の骨壺は、適宜の割合の石膏、粘土のいずれか又は
両方と澱粉とを主構成物とし、これににかわ水を添加し
て所定容器に成形して成ることを特徴としている。さら
に、これに紛状、粒状、塊状、又は小片状にした生分解
性材料及び（又は）無機材料の一種、又は二種以上を適
宜の割合で添加して混合し、これににかわ水を添加して
所定容器に成形するようにしてもよい。In order to solve the above problems, the present invention has the following structure. That is, the naturally degradable urn is characterized in that an appropriate proportion of gypsum, either or both of clay and starch is a main constituent, and glue water is added to this to form a predetermined container. There is. Furthermore, one or two or more kinds of biodegradable material and / or inorganic material in powder, granule, lump, or piece form are added thereto at an appropriate ratio and mixed, and then glue water is added thereto. You may make it add and shape | mold in a predetermined container.

【０００８】かかる材料構成の骨壺の製造は、紛状又は
粒状の石膏、粘土のいずれか又は両方と澱粉とを適宜の
割合で混合し、該混合物ににかわ水を添加して混練した
後、これを所定成形型に充填して常温乾燥による成形方
法を採る。さらに、紛状、粒状、塊状、又は小片状にし
た生分解性材料及び（又は）無機材料の一種、又は二種
以上を適宜の割合で添加して混練させて成形方法を採っ
てもよい。The urn jar having such a material constitution is manufactured by mixing either or both of powdery or granular plaster and clay and starch at an appropriate ratio, and adding kneading water to the mixture and kneading the mixture. This is filled in a predetermined molding die and a molding method by drying at room temperature is adopted. Further, one or two or more kinds of powdery, granular, lumpy, or small pieces of biodegradable material and / or inorganic material may be added at an appropriate ratio and kneaded to adopt a molding method. .

【０００９】[0009]

【作用】このように構成した骨壺は、生分解性材料の構
成物が一定年月の経過にしたがって土壌中に生息する微
生物により分解される。In the thus constructed urn, the constituents of the biodegradable material are decomposed by the microorganisms inhabiting the soil after a certain period of time.

【００１０】また、石膏は無機物ゆえに微生物による分
解は期待できないが、その成形過程で焼結させることな
く常温乾燥により硬化させて形成しているため、カロー
ト内の気温の変化による膨脹、収縮、並びに浸潤した水
分の凍結、解凍によって亀裂や割れが発生し、これらを
繰り返すことによって細分化されて、土壌となる。Since gypsum is an inorganic substance, it cannot be expected to be decomposed by microorganisms, but since it is formed by being hardened by drying at room temperature without being sintered in the molding process, expansion, contraction, and Freezing and thawing of the infiltrated water causes cracks and cracks, and by repeating these, it is subdivided into soil.

【００１１】[0011]

【発明の実施の形態】次に上記構成に基づいた具体的な
実施形態の例について、図面をもとに詳細に説明する。
図１は本実施形態例の成形用型枠の構成を示す分解斜視
図であり、図２は本実施形態例の成形用型枠を組み付け
た状態を示す縦断面図である。また、図３は本実施形態
例の成形用型枠に骨壺の構成材料を注入した状態を示す
一部切欠斜視図である。BEST MODE FOR CARRYING OUT THE INVENTION Next, an example of a specific embodiment based on the above configuration will be described in detail with reference to the drawings.
FIG. 1 is an exploded perspective view showing the configuration of the molding frame of the present embodiment example, and FIG. 2 is a longitudinal sectional view showing a state in which the molding frame of the present embodiment example is assembled. Further, FIG. 3 is a partially cutaway perspective view showing a state in which the constituent material of the urn is injected into the molding die of this embodiment.

【００１２】［骨壺の構成材料］本実施形態例における
骨壺１の材料構成の割合は、石膏を約４５重量％、澱粉
を約４０重量％、にさらに一種または二種以上の生分解
性材料及び（又は）無機材料を約１５重量％を添加した
ものに、所定濃度のにかわ水を添加して所定粘度まで混
練する。なお、石膏の代わりに粘土を用いてもよく、ま
た石膏と粘土を適宜の割合で混合させて用いてもよい。
また、ここで添加する生分解性材料とは、土壌中の微生
物で分解し得る物質からなるものであれば特に限定する
ものではない。例えば、間伐材の木粉、紙漉用のパルプ
材、さとうきびの絞り滓、雪花菜、など、植物性繊維質
を混合させることにより、構成材料のいわゆるつなぎと
して用いれば、より保形力が高まる。また、無機材料と
しては、例えば、粉砕した貝殻、火山灰、木炭灰、など
である。[Constituent material of urn urn] The ratio of the material composition of the urn urn 1 in this embodiment is about 45% by weight of gypsum and about 40% by weight of starch, and one or more biodegradable materials. About 15% by weight of the material and / or the inorganic material is added with glue water of a predetermined concentration and kneaded to a predetermined viscosity. Clay may be used instead of gypsum, or gypsum and clay may be mixed at an appropriate ratio.
Further, the biodegradable material added here is not particularly limited as long as it is made of a substance that can be decomposed by microorganisms in soil. For example, by mixing plant fiber such as wood powder of thinned wood, pulp material for papermaking, slag of sugar cane, and snowy vegetables, when used as a so-called binder of the constituent material, the shape retention power is further enhanced. Further, examples of the inorganic material include crushed shells, volcanic ash, charcoal ash, and the like.

【００１３】さらに、にかわ水は１０００ｃｃの水に１
５〜３０ｇの乾燥にかわを溶かしたものを用いている。
この濃度は成形用型枠内への流入時の流動性、乾燥硬化
後の硬度や保形力を考慮して適宜に決定される。Furthermore, 1 liter of glue water is equivalent to 1000 cc of water.
5 to 30 g of dried melted glue is used.
This concentration is appropriately determined in consideration of the fluidity when flowing into the molding frame, the hardness after drying and curing, and the shape retention force.

【００１４】このように石膏及び（又は）粘土を主成分
とし、にかわ水で結着力を付加しているため、火葬直後
の骨の高温に耐える程度の耐熱性を確保することができ
ると共に、所定の保形力を確保することができる。上記
した本実施形態例の構成材料の割合で成形した骨壺１
は、カロート内の雰囲気状態にも左右されるが約７〜１
０年で分解されて細分化し、最終的にはカロート内の土
壌と同様となる。Since the main component is gypsum and / or clay, and the binding force is added by glue water, the heat resistance to withstand the high temperature of the bone immediately after the cremation can be ensured and the predetermined amount can be obtained. It is possible to secure the shape retention power of. The urn 1 molded with the ratio of the constituent materials of the embodiment described above.
Is about 7-1 depending on the atmosphere inside the carrot.
It decomposes in 0 years and is subdivided into pieces, which eventually become the same as the soil in the carote.

【００１５】［成形用型枠の構成］次に、円筒形の骨壺
１を成形するための成形用型枠２は、図示するように内
型３と外型４とから構成されている。[Construction of Molding Form] Next, a forming mold 2 for molding the cylindrical urn 1 is composed of an inner mold 3 and an outer mold 4 as shown in the drawing.

【００１６】内型３は、矩形平盤状の内基台３０と、そ
の中央に上部開放面を塞いだ有底円筒状の内枠体３１を
一体かつ立設状に形成して成る。該内枠体３１の外側周
面形は骨壺１の内側周面形とわずかの間隙をもって略一
致させた形状に形成している。また、内基台３０の上面
の四隅には位置決め用の突起３０ｂを立設状に形成して
いる。The inner mold 3 is formed by integrally forming a rectangular flat plate-shaped inner base 30 and a bottomed cylindrical inner frame body 31 having an open upper surface closed in the center thereof. The outer peripheral surface shape of the inner frame body 31 is formed in a shape that substantially matches the inner peripheral surface shape of the urn 1 with a slight gap. In addition, positioning projections 30b are formed upright on the four corners of the upper surface of the inner base 30.

【００１７】外型４は、矩形平盤状の外基台４０と、そ
の中央に上下開放の円筒状の外枠体４１を一体かつ立設
状に形成して成る。該外枠体４１の内側周面形は、骨壺
１の肉厚に相当する間隙をもって骨壺１の外側周面形と
略一致させた形状に形成している。また、外基台４０の
四隅には上記した内型３の位置決め用の突起３０ｂと適
合して嵌合する嵌合口４０ｊを形成している。The outer mold 4 is formed by integrally forming a rectangular flat plate-shaped outer base 40 and a cylindrical outer frame 41 that is open vertically in the center thereof. The inner peripheral surface shape of the outer frame body 41 is formed in a shape that substantially matches the outer peripheral surface shape of the urn 1 with a gap corresponding to the wall thickness of the urn 1 being formed. Further, fitting holes 40j are formed at the four corners of the outer base 40 so as to fit and fit with the positioning projections 30b of the inner mold 3 described above.

【００１８】なお、上記内型３及び外型４は、金属材料
で形成してもよく、またはＦＲＰ(Fiber Reineforced P
lastic)等の樹脂材で形成して軽量化を図ってもよい。
また、本実施形態例では、外型４を内型３に被せるよう
にしているが、このほか、母線に沿った分割線をもった
割型としてもよい。The inner mold 3 and the outer mold 4 may be made of a metal material, or FRP (Fiber Reineforced P).
It may be made of a resin material such as lastic) to reduce the weight.
Further, in the present embodiment, the outer mold 4 is put on the inner mold 3, but in addition to this, a split mold having a dividing line along the generatrix may be used.

【００１９】［骨壺の成形工程］上記のように構成した
成形用型枠２を用いて骨壺１を成形する工程は、先ず内
型３の内基台３０を略水平な製造台（図示省略。）又は
床面Ｆに載置し、内枠体３１の母線が略垂直になるよう
に上向きにして設置する。次に、内枠体３１の外側周面
の全周面にゴム製肉薄板からなる外側シート３２を巻回
させると共に、同様材にて内枠体３１の天面３１ｈの全
面を覆う円盤状の天面シート３３を取り付ける。さら
に、内枠体３１と内基台３０とが接する内基台３０の上
面に、内枠体３１を囲むようにしてゴム製肉薄板からな
るドーナツ状の底面シート３４を取り付ける。これら各
シートの取り付けは、流し込んだ骨壺構成材の内型３へ
の付着を防止するためのものである。したがって、これ
ら各シート３２，３３，３４は本実施例のようにゴム製
に限定する必要はなく、可撓性を有する樹脂板やフィル
ムを代用してもよい。[Step of molding urn jar] In the step of molding the urn urn 1 using the molding frame 2 configured as described above, first, the inner base 30 of the inner mold 3 is set to a substantially horizontal manufacturing table (shown in the figure). (Omitted) or placed on the floor F and installed so that the generatrix of the inner frame 31 is substantially vertical. Next, the outer sheet 32 made of a thin rubber plate is wound around the entire outer peripheral surface of the inner frame 31, and a disk-shaped outer cover 32 covering the entire top surface 31h of the inner frame 31 with the same material. Attach the top sheet 33. Further, a donut-shaped bottom sheet 34 made of a rubber thin plate is attached to the upper surface of the inner base 30 where the inner frame 31 and the inner base 30 are in contact with each other so as to surround the inner frame 31. The attachment of these sheets is for preventing the poured urn urn component from adhering to the inner mold 3. Therefore, each of the sheets 32, 33, and 34 need not be made of rubber as in this embodiment, and a flexible resin plate or film may be used instead.

【００２０】次に、内側周面の全周面に渡ってゴム製肉
薄板からなる内側シート４２を取り付けた外枠体４１
を、内枠体３１の上方から被せるようにして環装させ、
外基台４０に開設された嵌合口４０ｊを、内基台３０の
突起３０ｂに嵌合させて固定する。このとき、内枠体３
１はその天面３１ｈが外枠体４１の上端縁４１ｅより、
骨壺１の底面１０の肉厚に相当する長さ分だけ下がった
位置となるように設計している。Next, an outer frame body 41 having an inner sheet 42 made of a thin rubber plate attached over the entire inner peripheral surface.
Is mounted so as to be covered from above the inner frame body 31,
The fitting opening 40j formed in the outer base 40 is fitted and fixed to the protrusion 30b of the inner base 30. At this time, the inner frame 3
1 has its top surface 31h from the upper edge 41e of the outer frame 41,
It is designed so that the position is lowered by a length corresponding to the wall thickness of the bottom surface 10 of the urn 1.

【００２１】これらの構成により、外枠体４１と内枠体
３１との間には、成形する骨壺１の側面１１と底面１０
との肉厚に相当した有底円筒状の充填空間Ｓが形成され
る。With these configurations, the side surface 11 and the bottom surface 10 of the urn 1 to be molded are formed between the outer frame body 41 and the inner frame body 31.
A bottomed cylindrical filling space S corresponding to the wall thickness of is formed.

【００２２】そして、この充填空間Ｓに、上述した骨壺
１の構成材料を流入（矢印Ｉ）して充填させ、常温下に
おいて乾燥硬化させる。本実施形態例では重量約２．４
Ｋｇの構成材料の充填で、約３０℃の温度雰囲気下の乾
燥室に約４時間静置して硬化させている。ここでは加熱
することはせず、約２５〜３５℃のいわゆる常温で乾燥
硬化させることが重要である。これは、加熱すれば焼結
して強固に硬化するため、長期間その形状を保って自然
分解が起こり難くなるからである。Then, the above-mentioned constituent material of the urn 1 is flown into the filling space S (arrow I) to be filled therein, and the material is dried and cured at room temperature. In this embodiment, the weight is about 2.4.
It is filled with Kg of constituent materials and left standing in a drying chamber under a temperature atmosphere of about 30 ° C. for about 4 hours to cure. Here, it is important to dry and cure at a so-called normal temperature of about 25 to 35 ° C. without heating. This is because, when heated, it sinters and hardens, so that its shape is maintained for a long period of time and spontaneous decomposition does not easily occur.

【００２３】乾燥硬化の後、外型４を上方に、及び（又
は）内型３を下方にそれぞれ移動させて、各シート３
２、３３、３４、４２が付着したままの成形体を型抜き
し、そしてこれら各シート３２、３３、３４、４２を取
り外して骨壺１の胴体部の完成となる。なお、円盤状を
成す骨壺１の蓋体（図面省略）の成形は、図示を省略す
るが、例えば、平板上に所定高さの円環状の枠体を載置
し、この枠体内に上記構成材料を流し込んで成形するよ
うにしてもよい。After the drying and curing, the outer mold 4 is moved upward and / or the inner mold 3 is moved downward so that each sheet 3 is moved.
The molded body with 2, 33, 34, 42 still attached is die-cut, and these sheets 32, 33, 34, 42 are removed to complete the body portion of the urn 1. The molding of the lid (not shown) of the disc-shaped urn 1 is omitted, but for example, an annular frame body having a predetermined height is placed on a flat plate, and the above-mentioned structure is placed in the frame body. The constituent materials may be poured and molded.

【００２４】なお、上記各シート３２，３３，３４，４
２の面には、型枠とシート面、及びシート面と成形体と
の剥離を容易にするため離型ワックス、カリ石鹸など適
宜の離型材を塗布している。The sheets 32, 33, 34, and 4 described above
An appropriate release material such as a release wax or potash soap is applied to the second surface in order to facilitate the separation between the mold and the sheet surface and the sheet surface and the molded body.

【００２５】[0025]

【効果】本願発明は、かかる材料構成を用いて本願製造
法に則って成形されることにより、所定の耐熱性を確保
しながらも年月経過にしたがって、土壌中の微生物によ
る生分解や気候変化による風化が生じて自然的に分解さ
れて、礫状、小片状、粒状、さらには粉状と順次変化し
て行き、最終的には遺骨とともに土へ帰すことができ
る。[Effect] The present invention is molded according to the manufacturing method of the present invention using such a material composition, and thus biodegradation or climatic change due to microorganisms in soil can be achieved over a period of time while ensuring a predetermined heat resistance. It is naturally decomposed due to weathering, and gradually changes into gravel, small pieces, particles, and even powder, and finally it can be returned to the soil with the remains.

【００２６】その結果、一時的とはいえ遺骨が収納され
ていた骨壺を産業廃棄物として扱うことなく、遺骨と共
にカロートに納めることにより、遺族の悲痛な気持ちを
いくらかでも癒すことができるものとなる。As a result, it is possible to heal some of the tragic feelings of the bereaved by storing the urn in which the ashes were temporarily stored in the carot together with the ashes without treating them as industrial waste. Become.

【図面の簡単な説明】[Brief description of drawings]

【図１】 本実施形態例の成形用型枠の構成を示す分解
斜視図である。FIG. 1 is an exploded perspective view showing a configuration of a molding frame according to an embodiment of the present invention.

【図２】 本実施形態例の成形用型枠を組み付けた状態
を示す縦断面図である。FIG. 2 is a vertical cross-sectional view showing a state in which a molding frame of this embodiment is assembled.

【図３】 本実施形態例の成形用型枠に骨壺の構成材料
を注入した状態を示す一部切欠斜視図である。FIG. 3 is a partially cutaway perspective view showing a state in which the constituent material of the urn is injected into the molding frame of the embodiment.

【符号の説明】[Explanation of symbols]

１ 骨壺 １０ 底面 １１ 側面 ２ 成形用型枠 ３ 内型 ３０ 内基台 ３０ｂ 突起 ３１ 内枠体 ３１ｈ 天面 ３２ 外側シート ３３ 天面シート ３４ 底面シート ４ 外型 ４０ 外基台 ４０ｊ 嵌合口 ４１ 外枠体 ４１ｅ 上端縁 ４２ 内側シート Ｆ 床面 Ｓ 充填空間 1 urn 10 Bottom 11 sides 2 Forming mold 3 Internal type 30 inner base 30b protrusion 31 Inner frame 31h Top surface 32 outer sheet 33 Top sheet 34 Bottom sheet 4 External type 40 Outer base 40j Mating port 41 Outer frame 41e Upper edge 42 Inner sheet F floor S filling space

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.⁷ 識別記号 ＦＩ テーマコート゛(参考） Ｃ０４Ｂ 14:36 Ｃ０４Ｂ 24:14 24:14） ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C04B 14:36 C04B 24:14 24:14)

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 石膏、粘土のいずれか又は両方と澱粉と
を主構成物とし、これににかわ水を添加して所定容器に
成形して成ることを特徴とする自然分解性骨壺。1. A naturally degradable urn characterized by comprising gypsum, clay, or both and starch as main constituents, and adding glue water to the main constituents to form a predetermined container. 【請求項２】 石膏、粘土のいずれか又は両方と澱粉と
に、さらに紛状、粒状、塊状、又は小片状にした生分解
性材料及び（又は）無機材料の一種、又は二種以上を適
宜の割合で添加して混合し、これににかわ水を添加して
所定容器に成形して成ることを特徴とする自然分解性骨
壺。2. One or more of gypsum, clay, and / or starch and starch, and one or more of biodegradable material and / or inorganic material in the form of powder, granules, lumps, or pieces. A spontaneously decomposable urn characterized by being formed by adding an appropriate proportion and mixing, adding glue water thereto, and molding the mixture into a predetermined container. 【請求項３】 紛状又は粒状の石膏、粘土のいずれか又
は両方と澱粉とを適宜の割合で混合し、該混合物ににか
わ水を添加して混練した後、これを所定の成形型枠に充
填して常温乾燥によって成形したことを特徴とする自然
分解性骨壺の製造方法。3. A powdery or granular gypsum, clay, or both and starch are mixed at an appropriate ratio, and glutinous water is added to the mixture to knead the mixture, which is then formed into a predetermined molding form. A method for producing a naturally degradable urn characterized by being filled and molded by drying at room temperature. 【請求項４】 紛状又は粒状の石膏、粘土のいずれか又
は両方と澱粉とを適宜の割合で混合し、さらに紛状、粒
状、塊状、又は小片状にした生分解性材料及び（又は）
無機材料の一種、又は二種以上を適宜の割合で添加して
混合し、該混合物ににかわ水を添加して混練した後、こ
れを所定の成形型枠に充填して常温乾燥によって成形し
たことを特徴とする自然分解性骨壺の製造方法。4. A biodegradable material obtained by mixing either or both of powdery or granular gypsum or clay and starch at an appropriate ratio, and further forming a powdery, granular, lumpy, or small piece-like material and (or )
One kind or two or more kinds of inorganic materials are added at an appropriate ratio and mixed, and after adding glue water to the mixture and kneading, this is filled in a predetermined molding frame and molded by room temperature drying. A method for producing a naturally degradable urn characterized by: