JPH02254324A - Load detector and vehicle weighing instrument using same - Google Patents
Load detector and vehicle weighing instrument using sameInfo
- Publication number
- JPH02254324A JPH02254324A JP7740889A JP7740889A JPH02254324A JP H02254324 A JPH02254324 A JP H02254324A JP 7740889 A JP7740889 A JP 7740889A JP 7740889 A JP7740889 A JP 7740889A JP H02254324 A JPH02254324 A JP H02254324A
- Authority
- JP
- Japan
- Prior art keywords
- beam material
- point part
- load
- supporting point
- base 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.)
- Pending
Links
- 238000005303 weighing Methods 0.000 title 1
- 238000001514 detection method Methods 0.000 claims description 35
- 239000000463 material Substances 0.000 abstract description 42
- 238000010008 shearing Methods 0.000 abstract description 6
- 230000007423 decrease Effects 0.000 abstract description 4
- 239000000470 constituent Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011513 prestressed concrete Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Measurement Of Force In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、起歪体に生じる歪を検出して計量対象物の重
量を想定する荷重検出装置、および、その荷重検出装置
を用いて、トラック、トレーラ、あるいは貨車などの重
量を検出する車輌用はかりに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a load detection device that detects strain occurring in a flexure body to estimate the weight of an object to be measured, and a load detection device that uses the load detection device to Related to vehicle scales that detect the weight of trucks, trailers, freight cars, etc.
従来の荷重検出装置、および車輌用はかりは、図面の第
１１図および第１２図に示されるように、（Ｉ）計量対
象車輌が載る台板（５）の主桁材（６）と、その主桁材
（６）の下方で、かつ台板（５）の四隅近くに設けた圧
縮型のロードセル（１９）との間に、台板（５）側の重
量をロードセル（１９）に伝える重点部として荷重受は
具（１６）を設け、この荷重受は具（１６）を、鋼球と
その鋼球を上下両側で挟む状態に設けた球面状の受座で
構成したもの（第１１図参照）。As shown in FIGS. 11 and 12 of the drawings, conventional load detection devices and vehicle scales include (I) the main girder material (6) of the base plate (5) on which the vehicle to be weighed is placed; A point between the compression type load cells (19) installed below the main girder (6) and near the four corners of the base plate (5) to transmit the weight of the base plate (5) to the load cell (19). As a part, the load receiver is provided with a tool (16), and this load receiver is composed of a steel ball and a spherical catch seat that holds the steel ball between the upper and lower sides (Fig. 11). reference).
（ＩＩ）台板（５）と荷重受は具（１６）は前記（Ｉ）
の場合と同様に構成されているが、前記荷重受は具（１
６）が梁材（１）の上面側に設けられ、がっ、梁材（１
）下面側には支点部（２）としての刃体（２０）と刃受
け（２１）とを設け、梁材（１）の左右方向での中心位
置の上面側と下面側とにストレーンゲージ（９）を設け
たもの（第１２図参照）。(II) The base plate (5) and load receiver (16) are as described in (I) above.
The configuration is the same as in the case of , but the load receiver is
6) is provided on the upper surface side of the beam material (1).
) A blade body (20) and a blade holder (21) as a fulcrum part (2) are provided on the lower surface side, and strain gauges ( 9) (see Figure 12).
上記（Ｉ）、（ｎ）のように構成されていた。これらの
従来技術で重点部として用いられていた鋼球と球面受座
とからなる荷重受は具（１６）は、台板（５）上に載る
車輌等が、停止および発進した際に生じる大きな水平方
向での作用力によって着力点の位置がずれても、自然に
復元させるための自動復帰機能の達成手段であり、これ
は、例えば振り千秋に揺動自在に枢支したクランクピン
に対して台板の一部を載せるなどの、周知の各種構成と
したものでも同様である。It was constructed as in (I) and (n) above. The load receiving device (16) consisting of a steel ball and a spherical seat, which was used as an important part in these conventional technologies, is capable of handling large loads that occur when a vehicle, etc. resting on the base plate (5) stops and starts. This is a means of achieving an automatic return function that allows the point of force to be restored naturally even if the position of the applied force is shifted due to an acting force in the horizontal direction. The same applies to various well-known configurations such as mounting a part of the base plate.
上記従来構造のもののうち、前者（１）のものでは、四
隅に設けられる各ロードセル（１９）を、個別に精度良
（設置し、かつ、そのロードセルに対して重点部を精度
良く所定位置に設ける必要があって、その個別的な高精
度での設置作業に多大な手数を要するものであった。ま
た、後者（ＩＩ）のものでは、上述（Ｉ）の場合のよう
なロードセル（１９）の個別的な設置作業を要さず、梁
材（１）を用いて左右の重点部を一体化して扱える点で
作業性の良いものではあるが、その検出精度の向上のた
めには、梁材（１）の歪を検出するストレーンゲージ（
９）から、左右両方向での重点部および支点部（２）ま
での距離（ａ）、（ｂ）をきわめて精度良く設定するこ
とが要望されている。Among the conventional structures described above, in the former (1), each load cell (19) provided at the four corners is individually installed with high precision, and the important point is set at a predetermined position with high precision with respect to the load cell. In the case of the latter (II), the load cell (19) as in the case of (I) was Although it has good workability in that it does not require separate installation work and can handle the left and right key points as one unit using the beam material (1), in order to improve the detection accuracy, it is necessary to use the beam material (1). (1) Strain gauge (
9), it is desired to set the distances (a) and (b) from the important point to the fulcrum part (2) in both left and right directions with extremely high accuracy.
ところが、前述のように、台板（５）に作用する大きな
水平方向での作用力を逃がし、かつ、正確な一点に荷重
を集中させるために鋼球と球面受座などによる自動復帰
手段を設けている従来の構造のものでは、前述の距離を
精度良く定めての設置に多大な手数を要するとともに、
−旦精度良く定めても、鋼球や球面受座の摩耗、あるい
は刃体と刃受けの摩耗などにより、微妙に着力点の位置
がずれ、検出精度の低下を生じ易く惹いては耐久性の低
下を招くものであった。However, as mentioned above, in order to release the large horizontal force acting on the base plate (5) and to concentrate the load on one precise point, an automatic return means using a steel ball and a spherical catch is provided. With the conventional structure, it takes a lot of effort to accurately determine the distance mentioned above and install it.
- Even if it is set accurately, the position of the force application point may shift slightly due to wear of the steel ball or spherical seat, or wear of the blade and blade rest, which can easily cause a decrease in detection accuracy and lead to a decrease in durability. This led to a decline in performance.
本発明は、前記梁材を用いての作業性の良さを活かしな
がら、荷重検出装置の構成材の摩耗に起因した検出精度
ならびに耐久性の低下を抑制すること、および、製作加
工も容易な荷重検出装置とその荷重検出装置を用いた車
輌用はかりを得る点にその目的がある。The present invention aims to suppress deterioration in detection accuracy and durability due to wear of the constituent materials of the load detection device while taking advantage of the good workability of using the beam material, and to provide a load detection device that is easy to manufacture and process. The purpose is to obtain a vehicle scale using a detection device and its load detection device.
上記目的を達成するために、本発明の荷重検出装置は、
固定部に対する取付用の支点部と、前記支点部から離れ
た位置で荷重を受ける重点部とを、梁材の長手方向で略
左右対称に振り分けて設けるとともに、前記支点部とそ
の支点部に近い位置の重点部との間の梁部分に、その梁
部分に作用する剪断応力を検出する歪検出器を設けたも
のである。In order to achieve the above object, the load detection device of the present invention includes:
A fulcrum part for attachment to a fixed part and an important part that receives a load at a position away from the fulcrum part are distributed approximately symmetrically in the longitudinal direction of the beam material, and the fulcrum part and the important part near the fulcrum part are provided approximately symmetrically in the longitudinal direction of the beam material. A strain detector is provided on the beam between the positional emphasis and the beam to detect the shear stress acting on the beam.
また、上記荷重検出装置を用いた車輌用はかりは、計量
対象車輌が載る台板側の部材を、前記梁材の重点部に対
して連結固定し、前記台板と梁材とを一体化したもので
ある。In addition, in a vehicle scale using the above-mentioned load detection device, the member on the base plate side on which the vehicle to be weighed is mounted is connected and fixed to the important point of the beam material, and the base plate and the beam material are integrated. It is something.
（イ）梁材を用い、かつ、梁材の長手方向で互いに離れ
て位置する重点部と支点部との間の梁部分で、その梁部
分に作用する剪断力を検出するので、重点部と支点部お
よび歪検出器の各箇所間の距離等の寸法精度に関係なく
、長期に亘る高精度での荷重検出が可能となる。(b) A beam is used, and the shearing force acting on the beam is detected between the focal point and the fulcrum, which are located apart from each other in the longitudinal direction of the beam. It is possible to detect the load with high accuracy over a long period of time, regardless of the dimensional accuracy such as the distance between the fulcrum and the strain detector.
つまり、梁材に作用する剪断力は、支点部と重点部との
間で、その間の距離に関係なく一定であるから、支点部
に対する重点部の距離、および歪検出器の位置を厳密に
寸法精度良く定める必要はない。従って、たとえ使用中
に、多少重点部での着力点に位置ずれが生じたとしても
、これによって検出精度に影響が及ぶものではない。In other words, the shearing force acting on the beam material is constant between the fulcrum and the important point, regardless of the distance between them, so the distance of the important point to the fulcrum and the position of the strain detector must be determined with strict dimensions. It is not necessary to set it accurately. Therefore, even if the position of the force application point at the important point slightly shifts during use, this will not affect the detection accuracy.
（ロ）また、前記支点部および複数の重点部は梁材の長
手方向で略左右対称位置に振り分は配置されているので
、重点部に作用する荷重が、梁材長手方向の左右両側で
バランスし、支点部のアンカ一部材に大きな引抜き力を
与えるようなモーメントを生じる虞れが少なく、しかも
、梁材を用いて複数の重点部を含んでユニット化した状
態での設置作業が行い易い。(b) Furthermore, since the fulcrum and the plurality of important points are arranged at substantially symmetrical positions in the longitudinal direction of the beam, the load acting on the important points is distributed on both the left and right sides in the longitudinal direction of the beam. It is well-balanced, there is less risk of creating a moment that would apply a large pull-out force to the anchor member at the fulcrum, and it is easy to install it in a unit that includes multiple important points using beam materials. .
（ハ）重点部に作用する荷重は、−点に集中させる必要
がなくなり、また、多少の位置ずれが生じたり、支点や
歪検出器との間での寸法精度として厳密な精度が要求さ
れないので、従来のような、重点部での着力点の自動的
な復帰のための複雑かつ高精度の加工を省き、台板側の
部材を梁材の重点部に一体的に連結固定して、全体を剛
的に構成することができる。(c) The load acting on the important point does not need to be concentrated at the negative point, and there is no need for slight positional deviation or strict dimensional accuracy between the fulcrum and the strain detector. , the conventional complicated and high-precision machining for automatic return of the force application point at the important point is omitted, and the base plate side members are integrally connected and fixed to the important point of the beam material. can be rigidly constructed.
これによって、台板側の部材と梁材とが剛的に一体化さ
れ、梁材を台板の構成材や強度メンバーと用いることが
可能となる。As a result, the member on the base plate side and the beam material are rigidly integrated, and the beam material can be used as a component of the base plate or a strength member.
（ｉ）請求項１に記載の荷重検出装置においては、前記
（（）、（０）の作用から、重点部の位置設定等に関す
る極めて高精度の設置作業や製作加工を要さず、作業性
良く、かつ、構造簡単に構成し易いものであるとともに
、長期の使用によっても、構成部材の摩耗による影響な
どで検出精度が低下することを避けられる利点がある。(i) In the load detection device according to claim 1, because of the effects (() and (0) above, extremely high-precision installation work or manufacturing processing for setting the position of the important part etc. is not required, and the workability is improved. It has the advantage that it is easy to construct, has a simple structure, and can avoid deterioration in detection accuracy due to the effects of wear of component members even after long-term use.
（ｉｉ）請求項２に記載の車輌用はかりにおいては、前
記（ロ）の作用から、荷重検出のための起歪体を兼ねる
梁材を、台板の強度メンバーとしても活用し、車輌用は
かりの全体構造ならびに製作加工の簡素化を図り得たも
のである。また、台板が、左右の車輪に対してこれを各
別に支持するセパレーツ型である場合には、前記梁材を
左右の台板どうしの連結部材としても利用できる。(ii) In the vehicle scale according to claim 2, from the effect of the above (b), the beam material that also serves as a strain body for load detection is also utilized as a strength member of the base plate, and the vehicle scale The overall structure and manufacturing process can be simplified. Furthermore, if the base plate is of a separate type that supports the left and right wheels separately, the beam material can also be used as a connecting member between the left and right base plates.
以下に、本発明の実施例を図面の記載に基づいて説明す
る。Embodiments of the present invention will be described below based on the drawings.
第１図は荷重検出装置の全体斜視図を示す。FIG. 1 shows an overall perspective view of the load detection device.
この荷重検出装置は、梁材（１）の左右両端部下面に、
基礎への取付板（４）が溶接固定されているとともに、
前記取付板（４）の内端縁（４ａ）から梁材（１）長手
方向で離れた位置に、仮想線で示す台板（５）の主桁材
（６）を取付は固定するためのボルト（７）挿入用のネ
ジ孔（８）、 （８）が刻設してあり、さらに、前記主
桁材（６）の外側端縁と前記取付板（４）の内端縁（４
ａ）との間の斜線で示す梁部分（１Ａ）の上下方向側面
に、その梁部分（１Ａ）に作用する剪断力を検出する歪
検出器としてのストレーンゲージ（９）を設けて構成し
てある。This load detection device is installed on the lower surface of both left and right ends of the beam (1).
The mounting plate (4) to the foundation is fixed by welding,
The main girder member (6) of the base plate (5) shown by the imaginary line is installed at a position away from the inner edge (4a) of the mounting plate (4) in the longitudinal direction of the beam member (1). Screw holes (8), (8) for inserting bolts (7) are cut into the outer edge of the main girder (6) and the inner edge (4) of the mounting plate (4).
A strain gauge (9) as a strain detector for detecting the shearing force acting on the beam portion (1A) is provided on the vertical side surface of the beam portion (1A) shown by diagonal lines between the beam portion (1A) and a). be.
前記梁材（１）に連結された取付板（４）は、固定部と
しての基礎（１０）に対して前記梁材（１）を両持梁型
式で固定する支点部（２）を兼ねるものであり、また、
前記ネジ孔（８）、（８）を設けた梁部分は梁材（１）
に台板（５）側の荷重を伝えるための重点部（３）を構
成するものであり、これらの支点部（２）および重点部
（３）は、梁材（１）の長手方向で、梁材（１）の中心
から略左右対称の位置に設けである。図中、（４ｂ）は
前記取付板（４）を基礎（１０）に固定するためのアン
カーボルト挿入用孔である。The mounting plate (4) connected to the beam (1) also serves as a fulcrum part (2) for fixing the beam (1) in a double-supported beam type to the foundation (10) as a fixed part. And also,
The beam portion where the screw holes (8) and (8) are provided is made of beam material (1).
The fulcrum part (2) and the important part (3) constitute an important part (3) for transmitting the load on the bed plate (5) side, and these fulcrum part (2) and important part (3) are in the longitudinal direction of the beam material (1), They are provided at substantially symmetrical positions from the center of the beam (1). In the figure, (4b) is an anchor bolt insertion hole for fixing the mounting plate (4) to the foundation (10).
前記ストレーンゲージ（９）は、主桁材（６）と取付板
（４）の内端縁（４ａ）との間の梁部分（１Ａ）の前記
上下方向側面の表裏に貼付けられている。The strain gauge (9) is attached to the front and back sides of the vertical side surface of the beam portion (1A) between the main girder member (6) and the inner edge (4a) of the mounting plate (4).
このストレーンゲージ（９）自体は、第１０図に示すよ
うに、一端側に一本の共通端子（２２ａ）を、他端側に
２本の端子（２２ｂ）、 （２２ｃ）を夫々備え、中央
の絶縁部（２３）を境に上下両側が略対称形に構成され
ている。そして、上下夫々の受感部（２４）は、その軸
線を梁材（１）の長手方向軸線に対して略４５°の方向
に傾斜させた、斜め姿勢のジグザグ線状に構成してある
。As shown in FIG. 10, this strain gauge (9) itself has one common terminal (22a) on one end, two terminals (22b) and (22c) on the other end, and a central Both upper and lower sides are substantially symmetrical with respect to the insulating portion (23). Each of the upper and lower sensing portions (24) is formed in a diagonal zigzag shape with its axis inclined at approximately 45 degrees with respect to the longitudinal axis of the beam (1).
尚、歪検出器としては、この種の形態のストレーンゲー
ジ（９）に限るものではなく、各種のものを採用でき、
要は、梁材（１）に作用する剪断力を検出できる構成の
ものであれば良い。Note that the strain detector is not limited to this type of strain gauge (9), and various types can be used.
In short, any configuration that can detect the shearing force acting on the beam material (1) is sufficient.
荷重検出装置の他の実施例としては次のようなものが考
えられる。Other examples of the load detection device are as follows.
Ｃ２−４＞梁材（１）をプレストレスコンクリートで構
成し、重点部（３）は、主桁材（６）の載置用凹部と、
取付ボルトの挿通用貫通孔（ＩＩ）とが形成され、また
端部には取付板（４）部分がコンクリートで一体形成さ
れている。［第２図（イ）参照］
（２−〇）梁材（１）が鋼材で構成され、その上面側の
重点部（３）に、ボルト孔ではなく、主桁材（６）の■
型形状の下側ウェブ部分を押える止め金（１２）を装着
してあり、左右の重点部（３）間の梁部分に、材料節減
のための凹曲部分（１３）を形成してある。［第２図（
ロ）参照］
（２−ハ）梁材（１）が鋼材で構成され、かつ、その梁
材（１）が、支点部（２）と重点部（３）とそれらの間
の歪検出器取付部分とを一体物で構成した左右一対の端
部梁（１’）、（１’）と、それらの端部粱（１’ ）
、 （１’ ）どうしの間を繋ぐ中間部材（１”）とか
ら構成されている。また、この例では取付板（４）が左
右の端部粱（１’ ）、 （１’ ）間にわたって一連
に構成されているが、左右に分離して別々に構成しても
よい。［第２図（ハ）参照］
（２−二）上記（２〜ハ）の構造と似た構成で、梁材（
１）が端部梁（１’ ）、 （１°）と中間部材（ｌ”
）との組合わせで構成されているが、この例では、中間
部材（ｌ”）を極力細くし、中間部材（１”）の周部お
よび端部梁（１゛）の一部をプレストレスコンクリート
製の補強体（１４）で補強している。C2-4> The beam material (1) is made of prestressed concrete, and the important part (3) is a recess for placing the main girder material (6),
A through hole (II) for insertion of a mounting bolt is formed, and a mounting plate (4) portion is integrally formed with concrete at the end. [See Figure 2 (a)] (2-0) The beam material (1) is made of steel, and the main girder material (6) has a
A stopper (12) is attached to hold down the lower web portion of the mold shape, and a concave curved portion (13) is formed in the beam portion between the left and right important points (3) to save material. [Figure 2 (
(2-c) The beam (1) is made of steel, and the beam (1) is used for mounting the strain detector between the fulcrum (2) and the important point (3). A pair of left and right end beams (1'), (1') that are integrally formed with the parts, and their end beams (1')
, (1') and an intermediate member (1") that connects the two. In this example, the mounting plate (4) extends between the left and right ends (1') and (1'). Although it is configured in a series, it may be separated into left and right and configured separately. [See Figure 2 (C)] (2-2) A structure similar to the structure in (2 to C) above, with a beam Material (
1) The end beam (1'), (1°) and the intermediate member (l”
), but in this example, the intermediate member (l") is made as thin as possible, and the peripheral part of the intermediate member (1") and a part of the end beam (1゛) are prestressed. It is reinforced with a concrete reinforcement (14).
［第２図（巧参照］
（２−ホ）梁材（１）がプレストレスコンクリート製で
あるとともに、台板（５）も全体がプレストレスコンク
リートで構成されており、両者は一連のボルト（１５）
で連結固定されている。［第２図（ホ）参照］
（２〜へ）梁材（１）と台板（５）とが相互には連結さ
れていず、鋼球と球面受座とを利用した荷重受は具（１
６）が梁材（１）の重点部（３）に設けられ、この例で
は、荷重受は具（１６）の着力点に集中荷重が作用し、
鋼球や球面受座の摩耗によって着力点の位置にずれが生
じることもあるが、歪検出器が重点部（３）と支点部（
２）との間の梁部分（１Ａ）でその梁部分（１Ａ）に作
用する剪断応力を検出するストレーンゲージ（９）であ
るため、着力点の位置がずれても検出精度には影響がな
い。［第２図（へ）参照］
上記第２図（イ）〜（へ）および前記第１図に示す各実
施例では、梁材（１）の両端に支点部（２）を設けてい
たが、梁材（１）の中央部の一ケ所にのみ支点部（２）
を設けたものであってもよいことは勿論である。[See Figure 2 (Takumi)] (2-e) The beam (1) is made of prestressed concrete, and the base plate (5) is also entirely made of prestressed concrete, and both are connected by a series of bolts ( 15)
The connection is fixed. [See Figure 2 (E)] (Go to 2) The beam material (1) and the base plate (5) are not connected to each other, and the load bearing using steel balls and spherical seats is a tool ( 1
6) is provided at the important point (3) of the beam material (1), and in this example, the load receiver applies a concentrated load to the force application point of the tool (16),
The position of the force application point may shift due to wear of the steel ball or spherical catch, but the strain detector can detect the difference between the important point (3) and the fulcrum point (3).
Since this is a strain gauge (9) that detects the shear stress acting on the beam part (1A) between the beam part (1A) and the beam part (1A), even if the position of the force application point shifts, the detection accuracy will not be affected. . [See Fig. 2(f)] In each of the embodiments shown in Figs. , the fulcrum part (2) is located only in one place in the center of the beam material (1).
Of course, it is also possible to provide the following.
第３図乃至第５図は本発明の荷重検出装置を用いた場合
の剪断力図の説明図であり、第３図は第１図に示した実
施例の荷重検出装置を用いた場合、第４図は第１図の実
施例の構造で、支点部（２）を梁材（１）の中央部の一
個所に設けた荷重検出装置を用いた場合、第５図は第２
図（へ）の実施例で示した荷重検出装置を用いた場合を
示す。上記第３図乃至第５図の各図の（イ）は、左右の
重点部（３）に均等に荷重（ＰＩ）、（Ｐ２）が作用し
た場合を示し、各図の（ロ）は、図中左方の重点部（３
）に作用する荷重（Ｐｌ）が、右方の重点部（３）に作
用する荷重（Ｐ２）よりも大である場合を示す。3 to 5 are explanatory views of shear force diagrams when the load detection device of the present invention is used, and FIG. 3 shows the shear force diagram when the load detection device of the embodiment shown in FIG. 1 is used. Figure 4 shows the structure of the embodiment shown in Figure 1, and when a load detection device with the fulcrum (2) provided at one location in the center of the beam (1) is used, Figure 5 shows the structure of the embodiment shown in Figure 2.
A case is shown in which the load detection device shown in the embodiment of Fig. (f) is used. (A) in each of the above figures 3 to 5 shows the case where the loads (PI) and (P2) are applied equally to the left and right important points (3), and (B) in each figure Important point on the left side of the figure (3
) is larger than the load (P2) acting on the right important point (3).
第６図乃至第９図は、前記各実施例で示した荷重検出装
置を用いて構成した車輌用はかりの例を示す。FIGS. 6 to 9 show examples of vehicle scales constructed using the load detection devices shown in each of the embodiments described above.
第６図は、台板（５）が、車輌の左右車輪を左右各別に
載置支持するように、車輌の進入方向に沿う長尺な左右
一対の分割台（５Ａ）、 （５Ｂ）から構成されたセパ
レーツ型のもので、その分割台（５Ａ）、 （５Ｂ）ど
うしを、前記荷重検出装置の梁材（１）の重点部（３）
、 （３）で連結したものである。FIG. 6 shows a base plate (5) composed of a pair of long left and right divided bases (5A) and (5B) along the vehicle entry direction so that the left and right wheels of the vehicle are mounted and supported separately. It is a separate type, and the dividing bases (5A) and (5B) are connected to the important point (3) of the beam material (1) of the load detection device.
, (3).
つまり、前記梁材（１）を分割台（５Ａ）、 （５Ｂ）
の連結手段としても利用したものである。In other words, the beam material (1) is divided into two parts (5A) and (5B).
It was also used as a means of connection.
第７図は、荷重検出装置の梁材（１）を、矩形の台板（
５）に対して適用した場合を示し、実線で表されるよう
に、平面視で傾斜する姿勢に配置したものと、仮想線で
示したように、矩形の台板（５）に対して直交する姿勢
に梁材（１）を配置したものとが考えられ、後者の場合
に比べて前者では、相隣る重点部（３）、（３）間のス
パン（１）を短くできる。Figure 7 shows the beam material (1) of the load detection device connected to a rectangular base plate (
5), as shown by the solid line, which is inclined in plan view, and as shown by the imaginary line, which is perpendicular to the rectangular base plate (5). In the former case, the span (1) between adjacent important points (3) can be made shorter than in the latter case.
第８図は、複数の台板（５）、（５）を接続して、トレ
ーラ−や貨車などの長尺の車輌に対する車輌用はかりを
構成した場合を示すものであり、接続部分では主桁材（
６）、（６）どうしの突合せ端部に、夫々接続用フラン
ジ（１７）、 （１７）を溶接し、ボルト連結して、そ
の直下部を一つの荷重検出装置で支持している。この車
輌用はかりを貨車用とする場合には、台板（５）の上に
レール（１８）を敷設すれば良く、貨車とトレーラ−等
との兼用タイプにするには、第９図に示すように、レー
ル（１８）の上端が台板（５）の上面から大きく突出し
ないように構成すれば良い。Figure 8 shows a case where a plurality of base plates (5), (5) are connected to form a vehicle scale for long vehicles such as trailers and freight cars. Material (
Connecting flanges (17), (17) are welded to the abutting ends of 6) and (6), respectively, and connected with bolts, and the directly lower part thereof is supported by one load detection device. When this vehicle scale is used for freight cars, it is sufficient to lay a rail (18) on the base plate (5), and to make it a type that can be used for both freight cars and trailers, as shown in Fig. 9. Thus, the upper end of the rail (18) may be configured so as not to protrude significantly from the upper surface of the base plate (5).
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る荷重検出装置とその荷重検出装置を
用いた車輌用はかりの実施例を示し、第１図は荷重検出
装置の全体斜視図、第２図（イ）〜（へ）は、夫々荷重
検出装置の別実施例を示す正面図、第３図乃至第５図は
荷重検出装置に作用する剪断力図の説明図である。第６
図乃至第９図は夫々車輌用はかりの別実施例を示し、第
６図はセパレーン型の車輌用はかりの斜視図、第７図は
台板が一つの場合の車輌用はかりの平面図、第８図は台
板が複数の場合の車輌用はかりの概略側面図、第９図は
路面走行車輌用と貨車用との兼用タイプの車輌用はかり
の説明図である。第１Ｏ図はストレーンゲージの説明図
である。第１１図及び第１２図は従来例の説明図である
。
（１）・・・・・・梁材、（１Ａ）・・・・・・梁部分
、（１）・・・・・・支点部、（３）・・・重点部、（
５）・・・・・・台板、（９）・・・・・・歪検出器、
（１０）・・・・・・固定部。The drawings show an embodiment of a load detection device according to the present invention and a vehicle scale using the load detection device, and FIG. 1 is an overall perspective view of the load detection device, and FIGS. Front views showing other embodiments of the load detection device, and FIGS. 3 to 5 are explanatory diagrams of shear force acting on the load detection device. 6th
9 to 9 respectively show other embodiments of the vehicle scale, FIG. 6 is a perspective view of a separate vehicle scale, FIG. 7 is a plan view of the vehicle scale with one base plate, and FIG. FIG. 8 is a schematic side view of a vehicle scale with a plurality of base plates, and FIG. 9 is an explanatory diagram of a vehicle scale that can be used for both road vehicles and freight cars. FIG. 1O is an explanatory diagram of a strain gauge. FIGS. 11 and 12 are explanatory diagrams of conventional examples. (1)...Beam material, (1A)...Beam part, (1)...Fully point, (3)...Important part, (
5)...Bedplate, (9)...Distortion detector,
(10)...Fixed part.
Claims (1)
前記支点部（２）から離れた位置で荷重を受ける重点部
（３）とを、梁材（１）の長手方向で略左右対称に振り
分けて設けるとともに、前記支点部（２）とその支点部
（２）に近い位置の重点部（３）との間の梁部分（１Ａ
）に、その梁部分（１Ａ）に作用する剪断応力を検出す
る歪検出器（９）を設けた荷重検出装置。 ２、計量対象車輌が載る台板（５）側の部材を、前記梁
材（１）の重点部（３）に対して連結固定し、前記台板
（５）と梁材（１）とを一体化してある請求項１記載の
荷重検出装置を用いた車輌用はかり。[Claims] 1. A fulcrum part (2) for attachment to the fixed part (10);
Emphasis parts (3) that receive loads at positions away from the fulcrum part (2) are distributed approximately symmetrically in the longitudinal direction of the beam (1), and the fulcrum part (2) and the fulcrum part The beam part (1A
) is provided with a strain detector (9) for detecting the shear stress acting on the beam portion (1A). 2. Connect and fix the member on the base plate (5) side on which the vehicle to be measured is placed to the important point (3) of the beam (1), and connect the base plate (5) and the beam (1). A vehicle scale using the load detection device according to claim 1, which is integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7740889A JPH02254324A (en) | 1989-03-28 | 1989-03-28 | Load detector and vehicle weighing instrument using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7740889A JPH02254324A (en) | 1989-03-28 | 1989-03-28 | Load detector and vehicle weighing instrument using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02254324A true JPH02254324A (en) | 1990-10-15 |
Family
ID=13633091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7740889A Pending JPH02254324A (en) | 1989-03-28 | 1989-03-28 | Load detector and vehicle weighing instrument using same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02254324A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1426743A2 (en) * | 2002-12-04 | 2004-06-09 | PM Group PLC | Container weighing system |
| CN104132719A (en) * | 2014-07-14 | 2014-11-05 | 上海宇航***工程研究所 | Variable-posture wheel pressure weighing device |
| JP2017138336A (en) * | 2017-05-17 | 2017-08-10 | 大和製衡株式会社 | Measuring device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5880534A (en) * | 1981-11-06 | 1983-05-14 | Kubota Ltd | Load cell of shearing type supported at both ends |
-
1989
- 1989-03-28 JP JP7740889A patent/JPH02254324A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5880534A (en) * | 1981-11-06 | 1983-05-14 | Kubota Ltd | Load cell of shearing type supported at both ends |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1426743A2 (en) * | 2002-12-04 | 2004-06-09 | PM Group PLC | Container weighing system |
| EP1426743A3 (en) * | 2002-12-04 | 2004-12-22 | PM Group PLC | Container weighing system |
| CN104132719A (en) * | 2014-07-14 | 2014-11-05 | 上海宇航***工程研究所 | Variable-posture wheel pressure weighing device |
| JP2017138336A (en) * | 2017-05-17 | 2017-08-10 | 大和製衡株式会社 | Measuring device |
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