JPH0750675Y2 - Balance - Google Patents

Balance

Info

Publication number
JPH0750675Y2
JPH0750675Y2 JP774190U JP774190U JPH0750675Y2 JP H0750675 Y2 JPH0750675 Y2 JP H0750675Y2 JP 774190 U JP774190 U JP 774190U JP 774190 U JP774190 U JP 774190U JP H0750675 Y2 JPH0750675 Y2 JP H0750675Y2
Authority
JP
Japan
Prior art keywords
guide body
wall body
weighing pan
movable wall
weighing
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 - Fee Related
Application number
JP774190U
Other languages
Japanese (ja)
Other versions
JPH0399321U (en
Inventor
晟 河本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
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 by Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP774190U priority Critical patent/JPH0750675Y2/en
Publication of JPH0399321U publication Critical patent/JPH0399321U/ja
Application granted granted Critical
Publication of JPH0750675Y2 publication Critical patent/JPH0750675Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Cookers (AREA)

Description

【考案の詳細な説明】 〈産業上の利用分野〉 本考案はひょう量室を備えた天びんに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a balance having a weighing chamber.

〈従来の技術〉 高精度の天びんでは風や室内の気流によって測定値が変
動するため、ひょう量室を設け、その内部にひょう量皿
を配置する対策が採られている。
<Prior Art> In a high-precision balance, the measured value fluctuates due to the wind or the air flow in the room, so a measure room is provided and a measure pan is placed inside it.

ひょう量室の形態としては、従来、第9図もしくは第10
図に示すような構造のものがある。
As for the form of the weighing chamber, it has conventionally been shown in FIG. 9 or 10.
There is a structure as shown in the figure.

第9図に示すものは、ひょう量皿91を囲むひょう量室92
を形成する壁体のうち、正面と背面が固定となってお
り、側面および上面がスライド式の扉93および94を形成
して、このいずれかの扉から被測定試料を出し入れする
ようになっている。
FIG. 9 shows a weighing chamber 92 surrounding a weighing pan 91.
Of the walls forming the, the front and back surfaces are fixed, and the side and top surfaces form sliding doors 93 and 94, and the sample to be measured can be put in and taken out from either of these doors. There is.

第10図に示すものは簡易形のもので、ひょう量皿101を
囲むカバー102全体がヒンジ103を中心に回転するように
構成されている。
The one shown in FIG. 10 is of a simplified type, and the entire cover 102 surrounding the weighing pan 101 is configured to rotate around a hinge 103.

〈考案が解決しようとする課題〉 従来のひょう量室の構造のうち、第9図に示すもので
は、正面が固定壁となっているため試料の出し入れを横
ないしは上から行う必要があり、操作しくにいという欠
点がある。
<Problems to be solved by the device> In the conventional weighing chamber structure shown in FIG. 9, the front surface is a fixed wall, so it is necessary to take in and out the sample from the side or from above. It has the drawback of being difficult.

一方、第10図に示すものでは試料の出し入れを前、左右
および上の合計4方向から行うことが可能であって、操
作性の点では良好であるものの、カバー102の開閉時に
ひょう量室が大気に対して負圧、正圧と変化し、特に精
密な天びんでは表示が安定するまでに要する時間が長く
なり、性能上の問題が生じる。
On the other hand, in the case shown in FIG. 10, the sample can be taken in and out from the front, right and left, and four directions in total, which is good in terms of operability, but the weighing chamber is opened when the cover 102 is opened and closed. The pressure changes from negative pressure to positive pressure with respect to the atmosphere, and particularly with a precision balance, the time required for the display to stabilize becomes longer, causing a problem in performance.

本考案の目的は、操作性が良好で、かつ、上記のような
性能上の問題もないひょう量室を備えた天びんを提供す
ることにある。
An object of the present invention is to provide a balance having a weighing chamber which has good operability and does not have the above-mentioned performance problems.

〈課題を解決するための手段〉 上記の目的を達成するため、本考案では、実施例に対応
する第1図に示すように、上皿形のひょう量皿1の下方
のハウジング2の上面に、ひょう量皿1の側方に直立す
るガイド体(この例ではケースが兼用)3を設け、この
ガイド体3には、ひょう量皿1の残る側方を囲み、か
つ、ガイド体3に沿って上下方向に変位自在の可動側壁
体4を支承し、その可動側壁体4とガイド体3とで形成
される筒状空間の上部開口部には、ガイド体3もしくは
ハウジング2に対して固定された部材から持ち出された
上面板5を配設し、これらのガイド体3、可動側壁体
4、上面板5およびハウジング2によってひょう量室を
形成している。
<Means for Solving the Problems> In order to achieve the above object, in the present invention, as shown in FIG. 1 corresponding to the embodiment, the upper surface of the housing 2 below the upper pan-shaped weighing pan 1 is provided. A guide body (in this example, the case also serves as) 3 is provided upright on the side of the weighing pan 1. The guide body 3 surrounds the remaining side of the weighing pan 1 and extends along the guide body 3. A movable side wall body 4 which is vertically displaceable, and is fixed to the guide body 3 or the housing 2 at an upper opening of a cylindrical space formed by the movable side wall body 4 and the guide body 3. An upper surface plate 5 taken out from the member is disposed, and the guide body 3, the movable side wall body 4, the upper surface plate 5 and the housing 2 form a weighing chamber.

〈作用〉 可動側壁体4を上方に変位させることによって、ひょう
量室の正面および左右両面が同時に開口し、これらのい
ずれからでも試料の出し入れを行うことができる。
<Operation> By displacing the movable side wall body 4 upward, the front side and the left and right sides of the weighing chamber are simultaneously opened, and the sample can be taken in and out from any of these.

この開閉動作において、可動側壁体4は上面板5ととも
に変位せず、第2図(a)に示すようにひょう量室内の
圧力変動は生じない。ちなみに、可動側壁体4と上面板
5を一体的に変位させる構造では、例えばこれらを持ち
上げたときには第2図(b)に示すようにひょう量室内
が負圧となって周囲から空気が入り込み、気流に起因す
る外乱が生じる。
In this opening / closing operation, the movable side wall body 4 is not displaced together with the upper surface plate 5, and the pressure fluctuation in the weighing chamber does not occur as shown in FIG. 2 (a). By the way, in the structure in which the movable side wall body 4 and the upper surface plate 5 are integrally displaced, when these are lifted, for example, as shown in FIG. Disturbances caused by the air flow occur.

〈実施例〉 第1図は本考案実施例の外観図である。<Embodiment> FIG. 1 is an external view of an embodiment of the present invention.

ひょう量皿1は上皿型のものであって、ハウジング2の
上方に配設されている。ひょう量皿1の側方には、天び
んメカニズムの一部等を収容したケース3がハウジング
2の上面から突出して設けられており、そのケース3の
ひょう量皿1側の垂直面には、垂直方向に沿って延びる
ガイド溝3a,3bが左右両端部に形成されている。
The weighing pan 1 is of an upper plate type and is arranged above the housing 2. A case 3 accommodating a part of the balance mechanism and the like is provided on the side of the weighing pan 1 so as to project from the upper surface of the housing 2. The case 3 has a vertical surface on the weighing pan 1 side. Guide grooves 3a, 3b extending along the direction are formed at both left and right ends.

ガイド溝3a,3bには、ひょう量皿1の残る3方の側方を
囲むコ字形形状を有し、かつ、ガイド溝3a,3bに沿って
垂直方向に変位自在の可動壁体4が嵌め込まれている。
そして、この可動壁体4とケース3のひょう量皿1側の
垂直面とで囲まれた筒状空間の上部開口部には、この開
口部を開閉できるようケース3に水平方向に変位自在に
支持された上面板5が配設されている。
Into the guide grooves 3a, 3b, a movable wall body 4 having a U-shape surrounding the remaining three sides of the weighing pan 1 and vertically displaceable along the guide grooves 3a, 3b is fitted. Has been.
An upper opening of a cylindrical space surrounded by the movable wall 4 and a vertical surface of the case 3 on the weighing pan 1 side is horizontally displaceable in the case 3 so that the opening can be opened and closed. A supported top plate 5 is provided.

以上の構成により、可動壁体4を下降させ、上面板5を
閉じた状態で、ひょう量皿1の全周囲はハウジング2、
ケース3、可動壁体4および上面板5によって囲まれた
状態となって、これらがひょう量室を形成することにな
る。
With the above configuration, with the movable wall 4 lowered and the top plate 5 closed, the entire circumference of the weighing pan 1 is surrounded by the housing 2,
The case 3, the movable wall body 4, and the upper surface plate 5 are surrounded, and they form a weighing chamber.

ひょう量皿1上への物品の載せ降ろしは、可動壁体4を
上方に持ち上げた状態で行う。この状態では、ひょう量
皿1の正面および左右両面が同時に解放されることにな
り、ひょう量室内への物品の出し入れが容易となる。こ
こで、可動壁体4の上下動時においては、外部に対する
仕切りが上下するだけであって、ひょう量室の容積変化
等に起因するる圧力変化による気流の発生はない。
The loading and unloading of articles on the weighing pan 1 is performed with the movable wall body 4 being lifted upward. In this state, the front surface and both the left and right sides of the weighing pan 1 are released at the same time, which makes it easy to take articles in and out of the weighing chamber. Here, when the movable wall body 4 moves up and down, the partition with respect to the outside only moves up and down, and no air flow is generated due to a pressure change due to a volume change of the weighing chamber or the like.

なお、例えば液体や粉体試料の測定時等のように、ひょ
う量皿1上に容器等を載せた状態でその内部に液体等を
注入するような測定においては、上面板5を解放してピ
ペット等によって試料を注入することも可能である。こ
の場合には、可動壁体4は閉じたままの状態としている
方が外風の影響がなくて好都合である。
In addition, in a measurement in which a liquid or the like is poured into a container with the container placed on the weighing pan 1 such as when measuring a liquid or powder sample, the top plate 5 is released. It is also possible to inject the sample with a pipette or the like. In this case, it is more convenient to keep the movable wall body 4 in a closed state because the external wind does not affect it.

第3図に側面図(a)とその部分平面図(b)で示す実
施例は、可動壁体34の上方への変位量を大きくした例で
ある。この例では、ガイド体を兼ねるケース33と可動壁
体34の間に、これら両者に摺動自在の中間ガイド36を介
在させ、可動壁体34をケース33の上面よりも更に上方に
まで上昇させ得るようにしている。
The embodiment shown in FIG. 3 in a side view (a) and a partial plan view (b) thereof is an example in which the amount of upward displacement of the movable wall body 34 is increased. In this example, a slidable intermediate guide 36 is interposed between the case 33 also serving as a guide body and the movable wall body 34 to raise the movable wall body 34 to a position higher than the upper surface of the case 33. I am trying to get it.

なお、以上の各例では可動壁体としてコ字形断面ののも
のを使用したが、第4図に示すように半円形のものを使
用することもできる。また、上面板は特に開閉自在とす
る必要はない。
In each of the above examples, the movable wall body having a U-shaped cross section is used, but it is also possible to use a semicircular body as shown in FIG. Further, the top plate does not need to be openable and closable.

また、ひょう量皿下方のハウジング内に天びんメカニズ
ム等が全て収容された構造の天びんでは、第5図に示す
ように、可動壁体54を摺動支持する専用のガイド体53を
ハウジング52上に設ければよい。また、この例では可動
壁体54としてほぼ円形のものを用い、上面板55は開閉自
在とはしていない。
Further, in the balance having a structure in which the balance mechanism and the like are all housed in the housing below the weighing pan, as shown in FIG. 5, a dedicated guide body 53 for slidably supporting the movable wall body 54 is provided on the housing 52. It should be provided. Further, in this example, a substantially circular movable wall 54 is used, and the upper plate 55 is not openable / closable.

更に、可動壁体の上下方向へのガイド機構としては、上
記した各例のように溝上のもののほか、第6図に示すよ
うに、可動壁体64とケース等の固定部に両端が回動自在
に支承されたリンク式のガイド63を用いることができ
る。
Further, as the vertical guide mechanism of the movable wall body, in addition to the one on the groove as in each of the above-described examples, as shown in FIG. 6, both ends are rotated by the movable wall body 64 and the fixed portion such as the case. A freely supported link type guide 63 can be used.

更にまた、第7図に示すように、上面板75をガイド体73
から持ち出さず、別途ハウジング72上に設けた支持体77
に上面板75を支承するように構成することもできる。
Furthermore, as shown in FIG.
Support 77 provided separately on the housing 72 without taking it out of the room
It may be configured to support the upper surface plate 75.

また、上面板の開閉方法としては、スライド式に限ら
ず、第8図に例示するように、支持体87(またはガイド
体)にヒンジ等によって回動自在に上面板85を支持し、
水平面に対して90°程度まで立てることによって解放す
る方法も採用可能である。この方法によっても、ピペッ
ト80等による液体試料等のひょう量室内への注入等に差
し支えることはない。
Further, the method of opening and closing the upper plate is not limited to the slide type, and as illustrated in FIG. 8, the upper plate 85 is rotatably supported by a support 87 (or a guide) by a hinge or the like,
It is also possible to adopt a method of releasing by standing up to about 90 ° with respect to the horizontal plane. This method does not hinder the injection of a liquid sample or the like into the weighing chamber by the pipette 80 or the like.

更には、可動壁体の上下方向への開閉は、手動による場
合のほか、モータ等によって開閉するように構成するこ
ともできる。手動で開閉する構成を採る場合、可動壁体
の重量を滑車やスプリング等で軽減するような機構を追
加することにより、開閉の操作性は向上する。また、可
動壁体をその上昇端部分で係止する機構を追加すること
も操作性向上の点で有効である。
Further, the movable wall body can be opened and closed in the vertical direction by a motor or the like in addition to the manual operation. In the case of adopting the structure of manually opening and closing, the operability of opening and closing is improved by adding a mechanism for reducing the weight of the movable wall body by a pulley or a spring. It is also effective in improving operability to add a mechanism for locking the movable wall body at its rising end portion.

〈考案の効果〉 以上説明したように、本考案によれば、ひょう量皿の一
側方にガイド体を設けるとともに、このガイド体には、
ひょう量皿の残る側方を囲み、かつ、ガイド体に沿って
上下方向に摺動自在の可動壁体を配設し、このガイド体
と可動壁体で形成される筒状空間の上面開口部には、可
動壁体とは一体に動かない上面板を設けたので、可動壁
体を上方に移動させることによって、ひょう量皿の正面
および左右両面が同時に解放されることになり、ひょう
量皿上への試料の載せ降ろし等の測定の作業性が向上す
るとともに、この可動壁体の開閉動作においてひょう量
室内の圧力変化が生じず、それに伴う気流の発生がない
ため、従来のように開閉時に計量値が変動することがな
く、特に精密天びんに適する。
<Effect of the Invention> As described above, according to the present invention, the guide body is provided on one side of the weighing pan, and the guide body is provided with
A movable wall that surrounds the remaining side of the weighing pan and is slidable in the vertical direction along the guide body is provided, and the upper opening of the cylindrical space formed by the guide body and the movable wall body. Since a top plate that does not move integrally with the movable wall is provided in the, the front and left and right sides of the weighing pan are released at the same time by moving the movable wall upward. The workability of measurement such as loading and unloading of the sample on the top is improved, and there is no pressure change in the weighing chamber during the opening and closing operation of this movable wall, and there is no air flow accompanying it, so opening and closing as in the past Sometimes the measured value does not fluctuate, making it particularly suitable for precision balances.

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

第1図は本考案実施例の外観図、第2図はその作用説明
図、第3図は本考案の他の実施例の側面図(a)および
その部分平面図、第4図は本考案他の実施例の可動壁体
の外観図、第5図は本考案の更に他の実施例の外観図、
第6図、第7図および第8図はそれぞれ本考案の更にま
た他の実施例の説明図、第9図および第10図は従来のひ
ょう量室つきの天びんの説明図である。 1……ひょう量皿 2……ハウジング 3……ケース 3a,3b……ガイド溝 4……可動壁体 5……上面板
FIG. 1 is an external view of an embodiment of the present invention, FIG. 2 is an explanatory view of its operation, FIG. 3 is a side view (a) of another embodiment of the present invention and a partial plan view thereof, and FIG. FIG. 5 is an external view of a movable wall body according to another embodiment, and FIG. 5 is an external view of yet another embodiment of the present invention.
6, 7 and 8 are explanatory views of still another embodiment of the present invention, and FIGS. 9 and 10 are explanatory views of a conventional balance with a weighing chamber. 1 ... Weighing pan 2 ... Housing 3 ... Case 3a, 3b ... Guide groove 4 ... Movable wall 5 ... Top plate

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】上皿形のひょう量皿の下方のハウジングの
上面に、ひょう量皿の側方に直立するガイド体が設けら
れ、このガイド体には、上記ひょう量皿の残る側方を囲
み、かつ、ガイド体に沿って上下方向に変位自在の可動
側壁体が支承され、その可動側壁体と上記ガイド体とで
形成される筒状空間の上部開口部には、上記ガイド体も
しくは上記ハウジングに対して固定された部材から持ち
出された上面板が配設され、上記ガイド体、可動側壁
体、上面板およびハウジングによってひょう量室が形成
されてなる天びん。
1. A guide body standing upright to the side of the weighing pan is provided on the upper surface of the housing below the upper dish-shaped weighing pan, and the guide body is provided with the remaining side of the weighing pan. A movable side wall body that surrounds and is displaceable in the vertical direction along the guide body is supported, and the guide body or the above-mentioned guide body or the above-mentioned guide body is provided in an upper opening of a cylindrical space formed by the movable side wall body and the guide body. A balance in which a top plate taken out from a member fixed to a housing is arranged, and a weighing chamber is formed by the guide body, the movable side wall body, the top plate and the housing.
JP774190U 1990-01-29 1990-01-29 Balance Expired - Fee Related JPH0750675Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP774190U JPH0750675Y2 (en) 1990-01-29 1990-01-29 Balance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP774190U JPH0750675Y2 (en) 1990-01-29 1990-01-29 Balance

Publications (2)

Publication Number Publication Date
JPH0399321U JPH0399321U (en) 1991-10-17
JPH0750675Y2 true JPH0750675Y2 (en) 1995-11-15

Family

ID=31511394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP774190U Expired - Fee Related JPH0750675Y2 (en) 1990-01-29 1990-01-29 Balance

Country Status (1)

Country Link
JP (1) JPH0750675Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2060885A1 (en) * 2007-11-19 2009-05-20 Mettler-Toledo AG Laboratory device with a protected work chamber

Also Published As

Publication number Publication date
JPH0399321U (en) 1991-10-17

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