JPH0120987Y2 - - Google Patents

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Publication number
JPH0120987Y2
JPH0120987Y2 JP16598984U JP16598984U JPH0120987Y2 JP H0120987 Y2 JPH0120987 Y2 JP H0120987Y2 JP 16598984 U JP16598984 U JP 16598984U JP 16598984 U JP16598984 U JP 16598984U JP H0120987 Y2 JPH0120987 Y2 JP H0120987Y2
Authority
JP
Japan
Prior art keywords
rotor
stirring
hole
solution
present
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP16598984U
Other languages
Japanese (ja)
Other versions
JPS6183442U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP16598984U priority Critical patent/JPH0120987Y2/ja
Publication of JPS6183442U publication Critical patent/JPS6183442U/ja
Application granted granted Critical
Publication of JPH0120987Y2 publication Critical patent/JPH0120987Y2/ja
Expired legal-status Critical Current

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Description

【考案の詳細な説明】[Detailed explanation of the idea]

〔産業上の利用分野〕 この考案はマグネチツクスターラーに用いられ
る撹拌用回転子の改良に関し、さらに詳しくは特
に高粘度溶液の撹拌に適した撹拌用回転子に関す
る。 〔従来技術〕 従来実験室などで用いられる小形の液体用撹拌
機の一つとして、磁気の作用により回転子を回転
させて液を撹拌するようにしたいわゆるマグネチ
ツクスターラーが公知である。ところでこのマグ
ネチツクスターラーに用いられる撹拌用回転子と
しては、使用目的に合わせて卵型、円板状、球状
等種々の形状大きさのものが知られているが、こ
の様な回転子においては次の様な欠点があり、十
分な撹拌効果が得られなかつた。 深い容器の場合、液の下層の回転子付近の液
だけしか撹拌されない。 特に高粘度溶液の場合、上記の傾向が大と
なり液の上層部と下層部が分離してしまう。 高速で回転子を回転させるとバランスが失わ
れて、回転子がはね上つてしまう。 特に高粘度溶液中で高速回転させる場合には
回転子がスターラーの回転に追従しなくなる。 実開昭57−82930号公報では従来の撹拌用回転
子の有する上記欠点を除去し、高粘度溶液を高速
撹拌しても十分撹拌できる様にした撹拌用回転子
を提供することを目的とし、回転子の回転中心軸
から外れた位置に、該回転中心軸とほぼ平行に伸
びた棒状突起を設けて成る撹拌用回転子が開示さ
れている。 〔考案が解決しようとする問題点〕 しかしながら上記回転子は深い容器の容量が大
きくなると(例えば500c.c.以上)撹拌が必ずしも
十分とはいえなくなつてくる。 本考案は従来の撹拌用回転子の上記の欠点を除
去し多量の高粘度溶液を高速回転しても十分撹拌
できるように工夫した撹拌用回転子を提供するこ
とを目的とする。 〔問題点を解決するための手段〕 本考案のかかる目的は、十字形をした回転子に
適当な大きさ、及び適当な角度で1個以上の貫通
孔をあけることにより達成される。 ここに本考案でいう高粘度溶液とは粘度が例え
ば30cp以上のあらゆる種類の溶液を、また高速
回転とは回転子の回転速度が例えば300r.p.m以上
の撹拌速度をいい、貫通孔の大きさ、角度に関し
ては添付図面に基ずき本考案の実施態様について
説明する。 第1図、第2図及び第3図に示す如く、十字形
を成した撹拌用回転子1は、交叉する辺2,3,
4,5を有し、同方向に延在する辺2,3にはマ
グネツト6が埋込まれており、これと交叉する同
方向に延在する辺4,5のうち一辺4に貫通孔7
があけられている。 第4図ないし第8図は、貫通孔7及び貫通孔を
有する辺とその形状の変更例を示す斜視図であ
る。即ち、第1図及び第4図に示した実施態様で
は貫通孔7はスリツト状の方形となつているが、
第5図ないし第8図に示した実施態様では貫通孔
7は円形となつている。又、第1図ないし第6図
の実施態様では辺4のみに貫通孔7があるのに対
し、第7図の実施態様では辺3,4にそれぞれ貫
通孔を設け、第8図の実施態様では辺4,5にそ
れぞれ貫通孔を設けている。更に、第4図・第6
図・第7図及び第8図に示した実施態様では貫通
孔7を有する辺の形状を一部流線形としている。 本考案はこれら実施態様に限定されることなく
種々の変更例を適用し得る。 〔考案の作用〕 本考案により設けた貫通孔7を通過した液体は
底に向かいその後壁を伝わつて上部へ行く。従つ
て貫通孔により、より一層上下撹拌が促進され
て、より速く溶液が均一に撹拌される。 以下に本考案の効果を一層明確にするために実
施例をあげる。 〔実施例〕 本考案による回転子と従来型の回転子とを用い
次の条件で撹拌状況についての比較実験を行なつ
た。 使用容器:内径φ94、高さ165mmのビーカー 溶液:30cp,60cp及び90cpのゼラチン各々1000
ml 回転速度:100rpm及び300rpm 本考案回転子(i):第1図ないし第3図に示す十字
形回転子。l=l′=60mm、h=h′=8mm 貫通孔の寸法:13mm×2mm 貫通孔の角度:水平に対し30度 従来型回転子(ii):第9図に示した実開昭57−
82930号開示の棒状突起付回転子。l=
l′=60mm、h=8mm、d=125mm 従来型回転子(iii):第10図に示した穴付円盤型回
転子60mmφ×8mmh 従来型回転子(iv):第11図に示した穴付棒形回転
子9mmφ×60mml 以上の条件で実験したところ、表1のような結
果が得られた。 なおこの表において〇印は15秒以内に撹拌され
たこと、×印は撹拌されないことを示し、また撹
拌されたかどうかの判定は、溶液が均一に着色さ
れたかどうか目視により行なつた。又、表中
( )内撹拌するに要した時間を示す。
[Industrial Application Field] This invention relates to an improvement of a stirring rotor used in a magnetic stirrer, and more specifically to a stirring rotor particularly suitable for stirring highly viscous solutions. [Prior Art] A so-called magnetic stirrer, which stirs a liquid by rotating a rotor by magnetic action, is known as one of the small-sized liquid stirrers used in laboratories and the like. By the way, the stirring rotor used in this magnetic stirrer is known to have various shapes and sizes, such as egg-shaped, disc-shaped, and spherical, depending on the purpose of use. There were the following drawbacks, and a sufficient stirring effect could not be obtained. In the case of deep containers, only the liquid near the rotor in the lower layer of the liquid is stirred. Particularly in the case of a high viscosity solution, the above-mentioned tendency becomes severe and the upper layer and lower layer of the liquid separate. If the rotor is rotated at high speed, the balance will be lost and the rotor will jump up. Especially when rotating at high speed in a highly viscous solution, the rotor cannot follow the rotation of the stirrer. The purpose of Japanese Utility Model Application Publication No. 57-82930 is to eliminate the above-mentioned drawbacks of conventional stirring rotors, and to provide a stirring rotor that can sufficiently stir high-viscosity solutions even at high speeds. A stirring rotor is disclosed in which a rod-shaped protrusion extending substantially parallel to the rotation center axis is provided at a position offset from the rotation center axis of the rotor. [Problems to be solved by the invention] However, when the capacity of the deep container becomes large (for example, 500 c.c. or more), the above-mentioned rotor cannot necessarily provide sufficient stirring. The object of the present invention is to provide a stirring rotor that eliminates the above-mentioned drawbacks of the conventional stirring rotor and is capable of sufficiently stirring a large amount of high-viscosity solution even when the solution is rotated at high speed. [Means for Solving the Problems] This object of the present invention is achieved by drilling one or more through holes of an appropriate size and angle in the cross-shaped rotor. Here, the term "high viscosity solution" as used in the present invention refers to any type of solution with a viscosity of, for example, 30 cp or more, and "high-speed rotation" refers to a stirring speed where the rotation speed of the rotor is, for example, 300 rpm or more, and the size of the through hole. With regard to angles, embodiments of the present invention will be described based on the accompanying drawings. As shown in FIGS. 1, 2, and 3, the cross-shaped stirring rotor 1 has intersecting sides 2, 3,
A magnet 6 is embedded in the sides 2 and 3 extending in the same direction, and a through hole 7 is provided in one side 4 of the sides 4 and 5 intersecting with the sides 4 and 5 extending in the same direction.
is open. 4 to 8 are perspective views showing examples of changes in the through hole 7, the side having the through hole, and the shape thereof. That is, in the embodiment shown in FIGS. 1 and 4, the through hole 7 is a slit-shaped rectangle,
In the embodiment shown in FIGS. 5 to 8, the through hole 7 is circular. Further, in the embodiments shown in FIGS. 1 to 6, the through hole 7 is provided only on side 4, whereas in the embodiment shown in FIG. Here, through holes are provided on sides 4 and 5, respectively. Furthermore, Figures 4 and 6
In the embodiment shown in FIGS. 7 and 8, the shape of the side having the through hole 7 is partially streamlined. The present invention is not limited to these embodiments and can be modified in various ways. [Operation of the invention] The liquid that has passed through the through hole 7 provided according to the invention heads to the bottom, passes through the rear wall, and goes to the top. Therefore, the through-holes further promote vertical stirring and uniformly stir the solution more quickly. Examples will be given below to further clarify the effects of the present invention. [Example] Comparative experiments regarding stirring conditions were conducted using a rotor according to the present invention and a conventional rotor under the following conditions. Container used: Beaker with inner diameter φ94 and height 165mm Solution: 1000 each of gelatin of 30cp, 60cp and 90cp
ml Rotation speed: 100 rpm and 300 rpm Invention rotor (i): Cross-shaped rotor shown in Figures 1 to 3. l = l' = 60 mm, h = h' = 8 mm Dimensions of through hole: 13 mm x 2 mm Angle of through hole: 30 degrees to the horizontal Conventional rotor (ii): The actual rotor shown in Fig. 9
A rotor with rod-like protrusions disclosed in No. 82930. l=
l' = 60mm, h = 8mm, d = 125mm Conventional rotor (iii): Disk type rotor with holes shown in Figure 10 60mmφ x 8mmh Conventional rotor (iv): Holes shown in Figure 11 Rod-shaped rotor with attached rod 9 mmφ x 60 mml When experiments were conducted under the above conditions, the results shown in Table 1 were obtained. In this table, a circle mark indicates that the solution was stirred within 15 seconds, and an x mark indicates that it was not stirred, and whether or not the solution was stirred was determined by visual inspection to see if the solution was uniformly colored. In addition, the time required for stirring is shown in parentheses in the table.

【表】 表からもわかるように、本考案に係る回転子に
よるときは、従来回転子に較べ高粘度溶液の高速
撹拌に対して十分な撹拌効果が得られる。
[Table] As can be seen from the table, when using the rotor according to the present invention, a sufficient stirring effect can be obtained for high-speed stirring of high-viscosity solutions compared to the conventional rotor.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案回転子の一実施態様を示す斜視
図、第2図はその正面図、第3図はその側面図で
ある。第4図ないし第8図は本考案回転子の他の
実施態様をそれぞれ示す斜視図である。第9図な
いし第11図は従来型回転子の斜視図である。 1……撹拌用回転子、6……マグネツト、7…
…貫通孔。
FIG. 1 is a perspective view showing one embodiment of the rotor of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a side view thereof. 4 to 8 are perspective views showing other embodiments of the rotor of the present invention, respectively. 9 to 11 are perspective views of conventional rotors. 1... Stirring rotor, 6... Magnet, 7...
...Through hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] マグネチツクスターラーに用いられる十字形を
成した撹拌用回転子において、その一部に貫通孔
を設けたことを特徴とする撹拌用回転子。
A cross-shaped stirring rotor used in a magnetic stirrer, characterized in that a through hole is provided in a part of the stirring rotor.
JP16598984U 1984-11-01 1984-11-01 Expired JPH0120987Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16598984U JPH0120987Y2 (en) 1984-11-01 1984-11-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16598984U JPH0120987Y2 (en) 1984-11-01 1984-11-01

Publications (2)

Publication Number Publication Date
JPS6183442U JPS6183442U (en) 1986-06-02
JPH0120987Y2 true JPH0120987Y2 (en) 1989-06-23

Family

ID=30723828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16598984U Expired JPH0120987Y2 (en) 1984-11-01 1984-11-01

Country Status (1)

Country Link
JP (1) JPH0120987Y2 (en)

Also Published As

Publication number Publication date
JPS6183442U (en) 1986-06-02

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