JPS5817231Y2 - digital display scale - Google Patents
digital display scaleInfo
- Publication number
- JPS5817231Y2 JPS5817231Y2 JP1977021061U JP2106177U JPS5817231Y2 JP S5817231 Y2 JPS5817231 Y2 JP S5817231Y2 JP 1977021061 U JP1977021061 U JP 1977021061U JP 2106177 U JP2106177 U JP 2106177U JP S5817231 Y2 JPS5817231 Y2 JP S5817231Y2
- Authority
- JP
- Japan
- Prior art keywords
- spring
- digital display
- capacitance
- hanger
- electrode plate
- 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
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
【考案の詳細な説明】
本考案は静電容量の変化を利用したデジタル表示杆（体
重計）に関する。[Detailed Description of the Invention] The present invention relates to a digital display rod (weighing scale) that utilizes changes in capacitance.
−従来デジタル体重計の重量検出装置としては、
ストレンゲージ、エンコーター、産動トランス、モータ
ーによる追従式等をセンサーとしてデジタル表示をして
いるものは出願されているが、これ等は全べて計量スプ
リングからラックを経てこれを回転運動もしくは、左右
の移動に変換してその移動量を検出しデジタル表示をし
たものである為、回転運動による慣性によって、ラック
ピニオンが磨耗し易く、又差動トランス方式においては
差動する時に磨擦力が加わり、これ等が体重計の精度に
大きな影響を与えていた。- Conventional weight detection devices for digital scales include:
Applications have been filed for strain gauges, encoders, production transformers, follow-up types using motors, etc. that have digital displays as sensors, but all of these have a measuring spring that passes through a rack and then rotates or moves from side to side. The rack and pinion are easily worn out due to the inertia caused by the rotational movement, and in the differential transformer system, frictional force is added when the differential is applied. These factors greatly affected the accuracy of the scale.
本考案はこれ等の欠点を解決し、磨耗及び磨擦の少ない
組立構造が極めて容易な、精度の高い、デジタル体重計
を提供するものである。The present invention solves these drawbacks and provides a highly accurate digital weighing scale that is extremely easy to assemble with less wear and friction.
以下図面に従って本考案の一実施例を詳説する。An embodiment of the present invention will be described in detail below with reference to the drawings.
１はベースで、２はこのベースの４隅に取り付けられて
いるベースエッヂである。1 is a base, and 2 is a base edge attached to the four corners of this base.
３は長機で、４はこれを固定している固定板である。3 is a long machine, and 4 is a fixed plate that fixes it.
５はこの固定板４に取り付けられたハンガーであり、６
は短根で吊輪７を介して長機に架設しである。5 is a hanger attached to this fixed plate 4;
is a short root installed on a long machine via a suspension ring 7.
８は支持機構フレームＡで、９は計量スプリングで、前
記支持機構フレームＡ８に、載置された支持板８ａに係
着している。8 is a support mechanism frame A, and 9 is a metering spring, which is engaged with a support plate 8a placed on the support mechanism frame A8.
一方１０は支持機構フレームＢで、可動電極板１１を支
持しである。On the other hand, 10 is a support mechanism frame B that supports the movable electrode plate 11.
１２は絶縁板で可動電極１１を絶縁しネジ１３で固定し
た支持枠１４を、軸１０ａで支持している。Reference numeral 12 insulates the movable electrode 11 with an insulating plate and supports a support frame 14 fixed with screws 13 by a shaft 10a.
１５はリンクピンで、前記絶縁板１２に固定されハンガ
ー５に接合している。A link pin 15 is fixed to the insulating plate 12 and connected to the hanger 5.
１６はスプリングで絶縁板１２に係合して固定板４に取
りつけられている。16 is attached to the fixed plate 4 by engaging with the insulating plate 12 with a spring.
１７は固定の電極板で絶縁板１８で絶縁され支持枠１９
にネジ２０で、ベース１に固定されてい、る。17 is a fixed electrode plate insulated by an insulating plate 18 and a support frame 19
It is fixed to the base 1 with screws 20.
次にこの動作を説明する。Next, this operation will be explained.
動作は従来の体重計と同様に、体重によって長機３、短
根６が下方に押圧され、計量スプリング９の伸に応じて
可″動電極板１１が、支持機構フレームＢ１０の１０ａ
を軸トしてハンガー５、リンクピン１５を介して下降し
、この下降量の各々の電極間の静電容量を検出して、デ
ジタル表示するものである。The operation is similar to that of a conventional weighing scale, in which the long machine 3 and the short base 6 are pressed downward by the body weight, and the movable electrode plate 11 moves to the 10a of the support mechanism frame B10 in accordance with the expansion of the weighing spring 9.
The capacitance is lowered via the hanger 5 and the link pin 15, and the capacitance between each electrode is detected and digitally displayed.
この様に容量検出のため従来の検出用のものより機械的
磨擦部が少なく、可動電極の面積が固定電極板より小さ
いために、可動電極が多少前後左右に移動しても容量の
変化は影響せず、又ハンガーとりンクピンの接合点を可
動自在にして捩れの誤差を吸収し可動電極を常に長機の
固定板にスプリングで引張っているため、体重に関係な
くハンガーとりンクピンの接触圧は常に一定であるため
に、体重による容量の変化を忠実に変換し、又ラックピ
ニオンが不用でしかも回転部分がないので構造が簡単で
組立が極めて容易で精度の高いデジタル表示が出来るこ
とを特徴とするものである。In this way, for capacitance detection, there are fewer mechanical friction parts than conventional detection devices, and the area of the movable electrode is smaller than the fixed electrode plate, so even if the movable electrode moves slightly back and forth, left and right, changes in capacitance will not be affected. In addition, the connection point between the hanger and link pin is made movable to absorb twisting errors, and the movable electrode is always pulled against the fixed plate of the long machine by a spring, so the contact pressure between the hanger and link pin is always constant regardless of the weight. Since it is constant, changes in capacity due to body weight can be faithfully converted, and since there is no need for a rack and pinion and there are no rotating parts, the structure is simple, assembly is extremely easy, and highly accurate digital display is possible. It is something.
第１図は斜視図で、第２図は重量検出部の側面図である
。
１：ベース、２：ベースエッヂ、３：長機、４：固定板
、５：ハンガー、６：短根、８：支持機構フレームＡ１
９：計量スプリング、１０：支持機構フレームＢ、１１
：可動電極、１７二固定電機、１２．１８：絶縁板、１
５：リンクピン、１６：スプリング。FIG. 1 is a perspective view, and FIG. 2 is a side view of the weight detection section. 1: Base, 2: Base edge, 3: Long machine, 4: Fixed plate, 5: Hanger, 6: Short root, 8: Support mechanism frame A1
9: Metering spring, 10: Support mechanism frame B, 11
: Movable electrode, 17 Two fixed electric machines, 12.18: Insulating plate, 1
5: Link pin, 16: Spring.
Claims (1)
ル表示させる秤にをいて、大小２枚の導伝性平板で構成
された電極平板をそれぞれ絶縁し、固定電極板は本体ベ
ースに固定し、他方の可動電極板を重量によって上下す
る長機のハンガーにスプリングを介して係止連動させ、
計量スプリングの変位を両電極板の静電容量の変化とし
て検出するデジタル表示杆。A scale that converts mechanical changes into electrical signals (capacitance conversion) and displays weight digitally is used to insulate the electrode plates, each consisting of two large and small conductive plates, and fix the fixed electrode plate to the main body base. , the other movable electrode plate is locked and interlocked with a hanger of a long machine that moves up and down depending on its weight via a spring,
A digital display rod that detects the displacement of the metering spring as a change in the capacitance of both electrode plates.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977021061U JPS5817231Y2 (en) | 1977-02-22 | 1977-02-22 | digital display scale |
| US05/877,840 US4191268A (en) | 1977-02-22 | 1978-02-15 | Digital weighing machine |
| GB7154/78A GB1593944A (en) | 1977-02-22 | 1978-02-22 | Weighing machines |
| DE2807586A DE2807586C2 (en) | 1977-02-22 | 1978-02-22 | Oscillator circuit for a digital scale |
| FR7805099A FR2381295A1 (en) | 1977-02-22 | 1978-02-22 | DIGITAL WEIGHING MACHINE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977021061U JPS5817231Y2 (en) | 1977-02-22 | 1977-02-22 | digital display scale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53116759U JPS53116759U (en) | 1978-09-16 |
| JPS5817231Y2 true JPS5817231Y2 (en) | 1983-04-07 |
Family
ID=28853218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977021061U Expired JPS5817231Y2 (en) | 1977-02-22 | 1977-02-22 | digital display scale |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5817231Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2914449C2 (en) * | 1979-04-10 | 1985-07-25 | Soehnle-Waagen Gmbh & Co, 7157 Murrhardt | Scales with digital display |
-
1977
- 1977-02-22 JP JP1977021061U patent/JPS5817231Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53116759U (en) | 1978-09-16 |
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