JP3576688B2 - Seilo - Google Patents

Description

【０００１】
【発明の属する技術分野】
本発明は、セイロやフルイ等の板材からなる枠体を有する道具に関するものである。
【０００２】
【従来の技術】
枠体を有する道具として、例えば従来のセイロにおいては、赤飯、もち米、饅頭等の蒸し調理には木製のセイロが用いられてきたが、近年になって金属製、ＦＲＰ製等のものも出現している。木製は、保温性、断熱性に優れ、作業性が良いが、木材の劣化、或いは衝撃によって木屑が食品中に混入する欠点がある。金属製は、保温性、断熱性に劣るため、蒸し工程終了後に急速に冷却するので結露し易く、また、衝撃によって変形し易い。ＦＲＰ製は、保温性、断熱性において金属製には勝るが木製には劣り、しかも衝撃によって端部が破壊した場合、ガラス繊維等の破片が食品中に混入する問題がある。また、従来のフルイ等にあっては、加熱して用いることは少ないが、木製のものは耐久性に劣り、食品等の対象に同様に木屑が混入するなどの問題があり、またフルう対象が枠体にこびり着き易く清掃の手間がかかるなどの問題があった。
【０００３】
【発明が解決しようとする課題】
セイロによって蒸気による蒸し調理をするような場合には、断熱性と保温性が最も重視されるため、木製セイロが最適であるが、長期間高温の蒸気に晒されるので、木材中の樹脂分が流出し、劣化して脆くなる。通常、これらのセイロは多段に積み重ねて使用されるので、重なり合う部分が擦られて木屑が欠落し、食品中に混入する問題がある。また、加熱しないで用いる道具にあっても、木製のものは耐久性に劣り、枠に処理対象がこびるついて、清掃に手間を要するなどの問題がある。これらのことから、本発明は、枠体を有する道具にあって、木製枠体の特質を活用しながら木材の劣化による木屑の発生を防止し、より衛生的で断熱性、保温性に富みかつ清掃のしやすい道具の提供を課題とする。
【０００４】
【課題を解決するための手段】
本発明によれば、上記課題は、次の手段によって、解決される。
第１の発明は、板材から成る枠体の横断面における垂直方向の、上下の両端面に、または、上下の両端面及び両側面の全部または一部に、プラスチックの保護材が設けられているセイロにおいて、前記プラスチックの保護材は、メルトフロレ−ト０．０１以下で分子量５０万以上の超高分子量ポリエチレンであり、積み重ねられたセイロを相互に嵌合させる嵌合部を、上下の両端面のプラスチックの保護材に設けた、ことを特徴とするセイロである。
第２の発明は、第１の発明に係るセイロにおいて、さらに、木部とプラスチックの保護材との間に補強材を設けたことを特徴とするセイロである。
以上のように、本発明は、木材が破損し易い部分にプラスチック材を配設することによって前述の問題点を解消すると共に、衛生性、保温性、耐久性を改善するものである。
【０００５】
図１ａ乃至ｃは、本発明の概念を示す道具の枠体の断面図（その１）で、１が木芯、２が保護材である。本発明では、図１に示すように、枠体の上下両端面にプラスチック材を配設することによって、木材の破損を防止するものである。この両端面は、多段に積み重ねる際にぶつかり合ったり、互いに擦り合ったりするために破損し易く、ササクレや木屑が発生し、食品への混入、作業者の怪我等の原因となるが、プラスチック材を配設することによって、これらの不具合を解消でき、また、耐久性の向上に大きく資する効果がある。
【０００６】
図２ａ乃至ｃは、本発明の概念を示す道具の枠体の断面図（その２）である。本発明は、図２に示すように、道具の枠体の両側面の少なくとも上下両端部を含む任意の範囲にプラスチック保護材を配設することによって、木材の破損によるササクレや木屑の発生を防止するものである。上下の両端部付近は、前述の理由と同様に破損し易いので、保護材の保護効果は大きく、また、この保護材を側面全面に配設すれば、衛生性、保温性、耐久性の向上に効果がある。
【０００７】
図３ａ、ｂは、本発明の概念を示す道具の枠体の断面図（その３）である。図３ａに示すように、枠体の上下端面と左右側面にプラスチック材を配設すると耐久性は一層向上し、また、図３ｂに示すように上下左右の全面に配設すれば木材は蒸気と絶縁されるので、木材の破損を完全に防止でき、衛生性、保温性、耐久性に富む作業性の良い道具を得ることができる。
【０００８】
図４ａ乃至ｃは、本発明の概念を示す道具の枠体の断面図（その４）である。同図に示すように、必要に応じてプラスチック材と木材との中間にガラス、カ−ボン等の繊維強化プラスチック板等の補強材３を設けて枠体の強化を図ることができる。特に、輪状枠の場合は、通常、厚さが薄く、横方向からの圧力で潰れる事があるので、補強材による補強効果は大きい。
【０００９】
セイロなど枠体を有する道具は、多段に積み重ねて使用されることが多いので、上下端面に摩擦係数の小さいプラスチック材を設けた時には、滑り落ち対策が必要となる。通常、上下端面の任意の部位に凹部と凸部を設け、互いに嵌合させる手段が採られるが、局部的に凹部を穿つと、その凹部に溜まるゴミ、汚れ等を取り除くことが難しい。本発明では、図５乃至図７に示すように上下、或いは左右に配設するプラスチック材を利用して、上下端面の長さ方向に沿って連続した嵌合部を設けることができる。これらの手段により、ゴミ等の洗浄が容易で、且つ、多段に積み重ねてもずり落ちる心配のない道具が得られる。
【００１０】
配設するプラスチックは、相互にぶつかり合ったり、作業中に落としても欠けない程度の耐衝撃性を有し、蒸気熱では溶融せず使用可能温度１００℃程度の耐熱性を有するものでよく、ポリエチレン、ポリプロピレン、ＡＢＳ，ナイロン、アクリル、ポリカ−ボネ−ト等々の汎用樹脂、ゴム、エラストマ−等の弾性体等が好ましく、更に、ポリエチレン、ポリプロピレン等の熱可塑性樹脂に放射線、電子線、紫外線、パ−オキサイド等による架橋処理を施した架橋ポリマ−、或いは、メルトフロレ−ト０．０１以下で分子量５０万以上の超高分子量ポリエチレン等は、その融点以上の温度になっても軟化はするが流動性を持たず、不可逆的変形を起こさない特性を持つのでより好ましい。
【００１１】
【発明の実施の形態】
【００１２】
【実施例１】
図８は、本発明を角型セイロに適用した実施例を示す斜視図である。図９、図１０は、４辺を構成するセイロ板の２片の端部の斜視図である。この例では、軽量木材を芯材１１とし、該芯材１１の横断面垂直方向の上下端面にメルトフロレ−ト０．０１以下で分子量５００万の超高分子量ポリエチレン樹脂厚板の保護材１２が貼着されている。また、側面全面には、１２ナイロン樹脂の薄板の保護材１４が貼着されている。更に、上下端面に貼着された超高分子量ポリエチレン板の片方には凸状の山が、他方には凹状の溝が、セイロ板の長さ方向の全長に亘り形成されている。５００万分子量の超高分子量ポリエチレン樹脂は、融点を越えて加熱された時の流動性を示すメルトフロ−レ−トが０．０１以下と非常に小さく、そのため、該樹脂の融点１３６℃を越えても軟化はするが、不可逆的変形に繋がる溶融現象は起こさないので、蒸し調理の蒸気温度には充分な耐熱性を有する。また、該樹脂は、プラスチック中最高の耐衝撃性、耐磨耗性を有するので、破損、磨耗し易い上下端面の嵌合部材として最適であり、耐久性向上に資する。嵌合のための凹凸部は、長さ方向に連続して形成されているので、ゴミ、汚れ等の洗浄に便利である。
【００１３】
側面に貼着される１２ナイロン樹脂は、耐熱性が高く蒸気によって変形することはない。また、表面硬度が高く耐磨耗性も高いので傷つき難くく、セイロ板を保護し衛生性と耐久性の向上に効果がある。更に、木芯を被覆しているので木材の劣化を防ぎ、且つ、断熱性を高め、セイロ内部の蒸気温度の保温性を高める効果がある。この例では、端部には木芯１１が露出している。この部分は、セイロの外部にあるので衛生性に支障はなく、コスト削減を重視すればこのままで良いが、必要に応じて保護材を配設すること（図示せず）もできる。
【００１４】
【実施例２】
図１１乃至図１３は、本発明を輪状セイロに適用した実施例を示し、図１１は全体の斜視図、図１２は上面図、図１３は図１１のｂ−ｂ断面図である。この例では、軽量木芯２１の両側面にはガラス繊維強化プラスチック（ＦＲＰ）薄板の補強材２３が貼着されている。また、上下両端面には１２ナイロンの厚板の保護材２２が貼着されている。更に、側面の最外層にはシンジオタクティック１、２−ポリブタジェン樹脂の放射線架橋ポリマ−の薄板の保護材２４が、横断面上部は上端面より下がった位置から、横断面下部は下端面より突出した位置まで貼着されている。この貼着方法によって、上端部には凸部が、下端部には凹部が長さ方向の全長に亘り自然に形成され、嵌合部を構成している。
【００１５】
上下両端面に貼着された１２ナイロン樹脂の保護材２２は、耐熱性、耐磨耗性に富み、比較的高硬度のプラスチック材であるので、破損、磨耗し易い端面部材として適材である。側面最外層に貼着された架橋ポリマ−の保護材２４は、放射線照射によって熱流動性を持たず、高温蒸気に充分な耐熱性を有する上に、ゴム弾性を有するエラストマ−であるため滑り難く、作業性がよい。内部に配設されたＦＲＰの補強材２３は、セイロ板の曲げ弾性を大きく向上させるので、輪形状を強固に保ち耐久性を向上させる効果がある。
【００１６】
図１１、図１２に示すように、一枚のセイロ板を輪状に形成したときの両端部の接続方法として、両端を突き合わせ、その部分を包むようにセイロの内外から１２ナイロンの薄板が接続用押さえ板２５として貼着されている。接続用押さえ板は、プラスチック板、アルミ等の金属板、ＦＲＰ板、木板等任意のものでよく、また、押さえ方法も、接着、ビス止め等任意である。また、図１４に示すように、両端部を凹状、凸状に形成し、互いに嵌合、接着して接続することも出来るなど、接続方法も任意である。更に、図１５、図１６に示すように接続部分の数は、二カ所、三カ所、或いは数カ所にすることも任意である。
【００１７】
【実施例３】
図１７乃至図１９は、把手付き角型セイロを多段に積み重ねる場合の嵌合方法の例を説明するものである。図１７は、全体の斜視図、図１８は図１７のＡ−Ａ断面図、図１９は同じくＢ−Ｂ断面図である。この例においても、軽量木材を芯材３１として、該芯材の上下端面にプラスチックの保護材３２、左右側面にはプラスチック材の保護材３４が貼着されているが、該プラスチック材の材質、効果は実施例１と同様であり、ここでは説明を省略する。この例の嵌合部分の特徴は、図１８、図１９の横断面図が示すように、階段状に段差を設けてあり、該段差部分に他のセイロの段差部分が嵌合し合って、横ずれを効果的に防止できる。また、段差部分のゴミ、汚れの洗浄も簡単である。
【００１８】
図１８および図１９は、セイロ板の横断面上部の段差部において、高段側が全てセイロの内側に、低段側はセイロの外側になるように、従って横断面下部の段差部においては、高段側はセイロ外側に、低段側はセイロ内側になるように配設されている例である。
【００１９】
図２０および図２１は、セイロ板の段差の方向が異なっている例を示している。図２０は図１７のＡ−Ａ矢視断面図、図２１は図１７のＢ−Ｂ断面図に相当する。この例の図１７のＡ−Ａ矢視横断面上部段差部においては、高段側はセイロ内側に、低段側は外側になるように配されているのに対して、Ｂ−Ｂ矢視断面図方向においてはその反対で、上部では高段側はセイロ外側に、低段側は内側になるように配されている。但し、これらの関係は、この例の逆であっても良い。このように、段差による嵌合部の形成は、製造上容易であり、しかも、嵌合効果も充分であり好ましい。
【００２０】
【実施例４】
図２２および図２３は、本発明をフルイに適用した実施例であり図２２はその斜視図、図２３は上面図である。この枠体の構成は、図１２において説明したのと同様の構成であるが、側面の保護材として、１２ナイロン樹脂の薄板が貼着されており、十分な耐久性を有する。また粉体等をフルっても、枠体に粉体がこびりつきにくく、使い勝手がよく、また清掃等の手間が省ける利点がある。
【発明の効果】
以上説明した通り、木材の周囲をプラスチック材で被覆することによって、従来の枠体を有する道具の不具合を解消し、耐久性、耐熱性、剛性、衛生性、安全性、断熱性、保温性に優れた道具を得ることができる。
【図面の簡単な説明】
【図１】本発明の概念を示す道具の枠体の断面図（その１）。
【図２】本発明の概念を示す道具の枠体の断面図（その２）。
【図３】本発明の概念を示す道具の枠体の断面図（その３）。
【図４】本発明の概念を示す道具の枠体の断面図（その４）。
【図５】本発明の概念を示す道具の枠体の断面図（その５）。
【図６】本発明の概念を示す道具の枠体の断面図（その６）。
【図７】本発明の概念を示す道具の枠体の断面図（その７）。
【図８】本発明の実施例のセイロの斜視図。
【図９】本発明の実施例のセイロ板の端部の斜視図。
【図１０】本発明の実施例のセイロ板の端部の斜視図。
【図１１】本発明の実施例のセイロの斜視図。
【図１２】本発明の実施例のセイロの上面図。
【図１３】本発明の実施例のセイロ板の断面図。
【図１４】本発明の実施例のセイロ板の接合部の斜視図。
【図１５】本発明の実施例のセイロの上面図。
【図１６】本発明の実施例のセイロの上面図。
【図１７】本発明の実施例のセイロの斜視図。
【図１８】本発明の実施例のセイロの断面図。
【図１９】本発明の実施例のセイロの断面図。
【図２０】本発明の実施例のセイロの断面図。
【図２１】本発明の実施例のセイロの断面図。
【図２２】本発明の実施例のフルイの斜視図。
【図２３】本発明の実施例のフルイの上面図。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a tool having a frame made of a plate material such as a siro and a sieve.
[0002]
[Prior art]
As a tool having a frame, for example, in a conventional siro, a wooden siro has been used for steaming red rice, glutinous rice, steamed buns, etc., but in recent years, metal siro, FRP s etc. have appeared. are doing. Wooden is excellent in heat retention and heat insulation, and has good workability, but has a drawback that wood chips are mixed into food due to deterioration of the wood or impact. Metals are inferior in heat retention and heat insulation, so they are rapidly cooled after the steaming process is completed, so that they are easily dewed and easily deformed by impact. FRP products are superior to metal materials in heat retention and heat insulating properties, but are inferior to wooden materials. Furthermore, when the edges are broken by impact, there is a problem that fragments such as glass fibers are mixed into food. In addition, in the case of conventional sieves and the like, it is rarely used by heating, but wooden ones are inferior in durability, and there is a problem that wood chips are similarly mixed in foods and the like. However, there is a problem that the frame easily sticks to the frame and it takes time for cleaning.
[0003]
[Problems to be solved by the invention]
In the case of steam cooking using steam with a stove, the most important thing is heat insulation and heat retention.Wooden stoves are optimal, but since they are exposed to high-temperature steam for a long period of time, the resin content in wood is reduced. Spills, deteriorates and becomes brittle. Usually, since these stirrups are used by being stacked in multiple stages, there is a problem in that the overlapping portions are rubbed, wood chips are missing, and are mixed into food. Further, even among tools used without heating, there is a problem in that wooden ones are inferior in durability, that the object to be processed sticks to the frame, and that cleaning is troublesome. From these facts, the present invention relates to a tool having a frame, which prevents the generation of wood chips due to deterioration of wood while utilizing the characteristics of the wooden frame, and is more hygienic, heat-insulating, rich in heat retention and The task is to provide tools that are easy to clean.
[0004]
[Means for Solving the Problems]
According to the present invention, the above-mentioned object is achieved by the following means.
In the first invention, a plastic protective material is provided on both upper and lower end surfaces in a vertical direction in a cross section of a frame made of a plate material, or on all or a part of the upper and lower end surfaces and both side surfaces. In the sailo, the protective material of the plastic is ultra-high molecular weight polyethylene having a melt flow rate of 0.01 or less and a molecular weight of 500,000 or more, and fitting portions for fitting the stacked sails to each other are formed on both upper and lower end surfaces. A sail provided on a plastic protective material.
According to a second aspect of the present invention, there is provided the sailo according to the first aspect, further comprising a reinforcing member provided between the wooden part and the plastic protective member.
As described above, the present invention solves the above-mentioned problems by arranging a plastic material in a portion where wood is easily damaged, and also improves hygiene, heat retention, and durability.
[0005]
1a to 1c are cross-sectional views (part 1) of a tool frame showing the concept of the present invention, wherein 1 is a wooden core and 2 is a protective material. In the present invention , as shown in FIG. 1, a plastic material is disposed on both upper and lower end surfaces of a frame to prevent damage to wood. These end faces are apt to be damaged because they collide or rub against each other when they are stacked in multiple stages. By disposing them, these inconveniences can be solved and the effect of greatly contributing to improvement in durability can be obtained.
[0006]
2a to 2c are cross-sectional views (part 2) of a tool frame showing the concept of the present invention. According to the present invention , as shown in FIG. 2, by disposing a plastic protective material in any area including at least upper and lower ends on both sides of the frame of the tool, it is possible to prevent the occurrence of rust and wood chips due to damage to the wood. Is what you do. The upper and lower ends are easily damaged in the same way as described above, so the protective effect of the protective material is great, and if this protective material is arranged on the entire side surface, hygiene, heat retention and durability are improved. Is effective.
[0007]
3A and 3B are cross-sectional views (part 3) of a tool frame showing the concept of the present invention. As shown in FIG. 3a, the durability is further improved by arranging the plastic material on the upper and lower end surfaces and the left and right side surfaces of the frame body. Since it is insulated, it is possible to completely prevent the breakage of the wood, and to obtain a tool having good hygiene, heat retention and durability and good workability.
[0008]
4a to 4c are cross-sectional views (part 4) of a tool frame showing the concept of the present invention. As shown in the figure, if necessary, a reinforcing member 3 such as a fiber-reinforced plastic plate such as glass or carbon can be provided between a plastic material and wood to reinforce the frame. In particular, in the case of a ring-shaped frame, the thickness of the ring-shaped frame is usually thin, and the frame may be crushed by a lateral pressure.
[0009]
Tools having a frame, such as a siro, are often used by being stacked in multiple stages. Therefore, when plastic materials having a small coefficient of friction are provided on the upper and lower end surfaces, measures against sliding down are required. Usually, a concave portion and a convex portion are provided at arbitrary portions on the upper and lower end surfaces, and a means for fitting the concave portion and the convex portion is adopted. However, if the concave portion is locally formed, it is difficult to remove dust, dirt, and the like accumulated in the concave portion. In the present invention, as shown in FIG. 5 to FIG. 7, it is possible to provide a fitting portion that is continuous along the length direction of the upper and lower end surfaces by using a plastic material disposed vertically or horizontally. By these means, it is possible to obtain a tool that is easy to wash dust and the like and that is not likely to slip off even when stacked in multiple stages.
[0010]
The plastics to be arranged have impact resistance that is not indispensable even if they collide with each other or drop during work, do not melt with steam heat, and have heat resistance of about 100 ° C usable temperature, General-purpose resins such as polyethylene, polypropylene, ABS, nylon, acrylic, and polycarbonate, and elastic bodies such as rubber and elastomer are preferable. Further, thermoplastic resins such as polyethylene and polypropylene can be irradiated with radiation, electron beams, ultraviolet rays, and the like. A crosslinked polymer that has been subjected to a crosslinking treatment with a peroxide or the like, or an ultrahigh molecular weight polyethylene having a molecular weight of 500,000 or more with a melt flow rate of 0.01 or less softens but flows even at a temperature higher than its melting point. It is more preferable because it has no property and does not cause irreversible deformation.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
[0012]
Embodiment 1
FIG. 8 is a perspective view showing an embodiment in which the present invention is applied to a square sail. FIG. 9 and FIG. 10 are perspective views of the ends of two pieces of the sail plate constituting the four sides. In this example, a lightweight wood is used as a core material 11, and a protective material 12 of an ultra-high molecular weight polyethylene resin thick plate having a melt flow rate of 0.01 or less and a molecular weight of 5,000,000 is attached to the upper and lower end surfaces of the core material 11 in the vertical direction of the cross section. Is being worn. Further, a protective material 14 made of a thin sheet of 12 nylon resin is adhered to the entire side surface. Further, a convex peak is formed on one side of the ultrahigh molecular weight polyethylene plate adhered to the upper and lower end surfaces, and a concave groove is formed on the other side over the entire length of the sail plate in the length direction. The ultra-high molecular weight polyethylene resin having a molecular weight of 5,000,000 has a very low melt flow rate showing a fluidity when heated above the melting point of 0.01 or less, so that the melting point of the resin exceeds 136 ° C. Although it also softens, it does not cause a melting phenomenon that leads to irreversible deformation, and thus has sufficient heat resistance to the steam temperature of steam cooking. In addition, since the resin has the highest impact resistance and abrasion resistance among plastics, it is most suitable as a fitting member on the upper and lower end surfaces that is easily damaged and worn, and contributes to improvement in durability. Since the concave and convex portion for fitting is formed continuously in the length direction, it is convenient for cleaning dust and dirt.
[0013]
The 12 nylon resin attached to the side has high heat resistance and is not deformed by steam. Further, since the surface hardness is high and the abrasion resistance is high, it is hard to be damaged, and it is effective for protecting the sail plate and improving hygiene and durability. Furthermore, since the wooden core is covered, there is an effect that deterioration of the wood is prevented, heat insulation is enhanced, and heat retention of steam temperature inside the sailo is enhanced. In this example, the wooden core 11 is exposed at the end. Since this portion is located outside the ceiling, there is no problem in hygiene, and if cost reduction is important, this portion may be left as it is, but a protective material may be provided as necessary (not shown).
[0014]
Embodiment 2
11 to 13 show an embodiment in which the present invention is applied to a ring-shaped sail. FIG. 11 is an overall perspective view, FIG. 12 is a top view, and FIG. 13 is a bb sectional view of FIG. In this example, reinforcing members 23 made of a glass fiber reinforced plastic (FRP) thin plate are adhered to both sides of the lightweight wooden core 21. A protective material 22 made of a 12-nylon thick plate is adhered to both upper and lower end surfaces. Further, the outermost layer on the side surface is provided with a protective material 24 made of a thin sheet of a radiation-crosslinked polymer of syndiotactic 1,2-polybutadiene resin. The upper portion of the cross section protrudes from a position lower than the upper end surface, and the lower portion of the cross section protrudes from the lower end surface. It is stuck to the position where it did. By this bonding method, a convex portion is formed at the upper end portion and a concave portion is formed at the lower end portion naturally over the entire length in the longitudinal direction, thereby forming a fitting portion.
[0015]
Since the protective material 22 made of 12 nylon resin adhered to both upper and lower end surfaces is a plastic material having high heat resistance and abrasion resistance and relatively high hardness, it is suitable as an end member that is easily damaged and worn. The protective material 24 of the crosslinked polymer adhered to the outermost layer on the side surface does not have thermal fluidity due to radiation irradiation, has sufficient heat resistance to high-temperature steam, and is an elastomer having rubber elasticity, so that it does not slip easily. Good workability. The FRP reinforcing member 23 provided inside greatly enhances the bending elasticity of the sail plate, and thus has the effect of maintaining the ring shape firmly and improving the durability.
[0016]
As shown in FIG. 11 and FIG. 12, as a connecting method of both ends when one sheet plate is formed in a ring shape, both ends are abutted, and a 12-nylon thin plate from inside and outside of the seat is wrapped so as to wrap the portion. Affixed as a plate 25. The connection holding plate may be any plate such as a plastic plate, a metal plate such as aluminum, an FRP plate, a wood plate, and the like, and the holding method is also arbitrary such as bonding and screwing. Further, as shown in FIG. 14, the connection method is arbitrary, for example, both ends can be formed in a concave shape or a convex shape, and they can be connected to each other by fitting and bonding. Further, as shown in FIGS. 15 and 16, the number of connection portions may be two, three, or several.
[0017]
Embodiment 3
FIGS. 17 to 19 illustrate an example of a fitting method in the case of stacking square sails with handles in multiple stages. 17 is an overall perspective view, FIG. 18 is a sectional view taken along line AA of FIG. 17, and FIG. 19 is a sectional view taken along line BB of FIG. In this example, too, lightweight wood is used as the core material 31 and the plastic protective material 32 is attached to the upper and lower end surfaces of the core material, and the plastic protective material 34 is attached to the left and right side surfaces. The effect is the same as that of the first embodiment, and the description is omitted here. The feature of the fitting portion in this example is that, as shown in the cross-sectional views of FIGS. 18 and 19, a step is provided in a step-like manner, and the step portion of another sail fits into the step portion, Lateral displacement can be effectively prevented. Further, it is easy to clean dirt and dirt on the step portion.
[0018]
FIGS. 18 and 19 show that, at the step portion at the upper portion of the cross section of the sail plate, the high step is all inside the stair and the low step is outside the sail, so that the step at the lower portion of the cross section is high. This is an example in which the step side is disposed outside the sailo and the low step side is disposed inside the sailo.
[0019]
FIG. 20 and FIG. 21 show examples in which the direction of the step of the sail plate is different. 20 is a sectional view taken along the line AA of FIG. 17, and FIG. 21 is a sectional view taken along the line BB of FIG. In the upper step portion in the cross section taken along the line AA of FIG. 17 in this example, the high step is disposed inside the sailo, and the low step is disposed outside, while viewed from the line BB. In the cross-sectional view, the opposite is true. On the upper side, the high side is arranged on the outside of the ceiling and the low side is arranged on the inside. However, these relationships may be the reverse of this example. As described above, it is preferable to form the fitting portion by the step because the manufacturing is easy and the fitting effect is sufficient.
[0020]
Embodiment 4
22 and 23 show an embodiment in which the present invention is applied to a screen. FIG. 22 is a perspective view thereof, and FIG. 23 is a top view thereof. The configuration of this frame is the same as that described with reference to FIG. 12, but a 12-nylon resin thin plate is adhered as a protective material on the side surface, and has sufficient durability. In addition, even when the powder or the like is full, the powder is less likely to stick to the frame body, has good usability, and has the advantage of eliminating the need for cleaning and the like.
【The invention's effect】
As described above, by coating the surroundings of wood with plastic material, problems with conventional tools with a frame can be eliminated, and durability, heat resistance, rigidity, hygiene, safety, heat insulation, and heat insulation can be improved. Excellent tools can be obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view (part 1) of a tool frame showing the concept of the present invention.
FIG. 2 is a sectional view (part 2) of a tool frame showing the concept of the present invention.
FIG. 3 is a cross-sectional view (part 3) of a tool frame showing the concept of the present invention.
FIG. 4 is a sectional view (part 4) of a tool frame showing the concept of the present invention.
FIG. 5 is a sectional view (part 5) of a tool frame showing the concept of the present invention.
FIG. 6 is a cross-sectional view (part 6) of a tool frame showing the concept of the present invention.
FIG. 7 is a cross-sectional view (part 7) of a tool frame showing the concept of the present invention.
FIG. 8 is a perspective view of a sailo according to the embodiment of the present invention.
FIG. 9 is a perspective view of an end portion of the sail plate according to the embodiment of the present invention.
FIG. 10 is a perspective view of an end of a sail plate according to the embodiment of the present invention.
FIG. 11 is a perspective view of a sailboat according to an embodiment of the present invention.
FIG. 12 is a top view of a sailo according to the embodiment of the present invention.
FIG. 13 is a sectional view of a sail plate according to the embodiment of the present invention.
FIG. 14 is a perspective view of a joint portion of a sail plate according to the embodiment of the present invention.
FIG. 15 is a top view of a sailo according to the embodiment of the present invention.
FIG. 16 is a top view of a sailor according to the embodiment of the present invention.
FIG. 17 is a perspective view of a sailboat according to an embodiment of the present invention.
FIG. 18 is a cross-sectional view of a sail according to an embodiment of the present invention.
FIG. 19 is a sectional view of a sailboat according to an embodiment of the present invention.
FIG. 20 is a cross-sectional view of a sail according to an embodiment of the present invention.
FIG. 21 is a cross-sectional view of a sailor according to an embodiment of the present invention.
FIG. 22 is a perspective view of a screen according to the embodiment of the present invention.
FIG. 23 is a top view of the sieve according to the embodiment of the present invention.

Claims (2)

板材から成る枠体の横断面における垂直方向の、上下の両端面に、または、上下の両端面及び両側面の全部または一部に、プラスチックの保護材が設けられているセイロにおいて、
前記プラスチックの保護材は、メルトフロレ−ト０．０１以下で分子量５０万以上の超高分子量ポリエチレンであり、
積み重ねられたセイロを相互に嵌合させる嵌合部を、上下の両端面のプラスチックの保護材に設けた、
ことを特徴とするセイロ。The vertical direction in the cross section of the frame body made of plate material, the both end surfaces of the top and bottom, or all or part of the upper and lower end surfaces and both side surfaces, in Seiro the protective material of the plastic is provided,
The protective material for the plastic is ultra-high molecular weight polyethylene having a melt flow rate of 0.01 or less and a molecular weight of 500,000 or more,
Fitting parts for fitting the stacked sails with each other are provided on the plastic protective materials on the upper and lower ends.
A seiro characterized by the following. 請求項１に記載のセイロにおいて、さらに、木部とプラスチックの保護材との間に補強材を設けたことを特徴とするセイロ。 In Seiro of claim 1, further characterized in that a reinforcement member between the protective material of wood and plastic bamboo steamer.

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