JPH0545962Y2 - - Google Patents
Info
- Publication number
- JPH0545962Y2 JPH0545962Y2 JP1986020103U JP2010386U JPH0545962Y2 JP H0545962 Y2 JPH0545962 Y2 JP H0545962Y2 JP 1986020103 U JP1986020103 U JP 1986020103U JP 2010386 U JP2010386 U JP 2010386U JP H0545962 Y2 JPH0545962 Y2 JP H0545962Y2
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- cylindrical body
- soil
- upper body
- measuring
- 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 - Lifetime
Links
- 239000002689 soil Substances 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000000696 magnetic material Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 description 10
- 239000000523 sample Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
本考案は農地や建設土木工事等を行う際の現地
の土壌硬度を測定する土壌硬度測定器に関するも
のである。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a soil hardness meter for measuring soil hardness at sites such as farmland and construction and civil engineering work.
「従来の技術」
従来のこの種の硬度計は、第４，５図に示すよ
うに円筒体３１の先端部分に、上方から圧縮ばね
３２で弾発させると共に下端に円錐面３３を有し
た測定子３４を上下動可能に収容してある。この
円筒体３１の壁面には長手方向に形成した長溝３
５の両側部分に目盛３６を設けると共に、前記測
定子３４を上下動可能に収容してある。``Prior art'' As shown in FIGS. 4 and 5, this type of conventional hardness tester has a cylindrical body 31 with a compression spring 32 springing from above and a conical surface 33 at the lower end. The child 34 is housed so as to be movable up and down. A long groove 3 formed in the longitudinal direction on the wall surface of this cylindrical body 31
A scale 36 is provided on both sides of the measuring element 5, and the measuring element 34 is housed so as to be movable up and down.
而して、この円錐面３３を土壌の被測定面に垂
直に当接させ、上方からこの円筒体３１を土壌中
に押し込みむと、該測定子３４は土壌中に侵入す
るが、土壌の硬さによる摩擦抵抗により圧縮ばね
３２の弾発力に抗して測定子３４が円筒体３１内
に押し込まれるような抵抗力が生じ、この測定子
３４の上端部によつて前記長溝３５内に収容され
た測定片３７が移動し、該測定片３７が位置する
部分の目盛３６を読み取つて土壌硬度を測定して
いる。 When this conical surface 33 is brought into vertical contact with the surface to be measured of soil and this cylindrical body 31 is pushed into the soil from above, the measuring element 34 penetrates into the soil, but the hardness of the soil Due to the frictional resistance caused by this, a resistance force is generated that pushes the measuring tip 34 into the cylindrical body 31 against the elastic force of the compression spring 32, and the measuring tip 34 is accommodated in the long groove 35 by the upper end of the measuring tip 34. The soil hardness is measured by moving the measuring piece 37 and reading the scale 36 where the measuring piece 37 is located.
「考案が解決しようとする課題」
従来の硬度計は、円筒体３１の側壁に設けた長
溝３５内に上下動可能に測定片３７を収容してあ
る。そのため、現場での測定作業の際に、この長
溝３５を下向きにしないと、土壌が測定片３７と
長溝３５との間に侵入してしまつて測定片が移動
する際、摩擦抵抗が変わつたり或いは測定片３７
が単に長溝３５内に位置しているだけのため、外
部からシヨツクが加わると該測定片が動いてしま
い、測定値に誤差が生じ易いという欠点を有する
ため、誤差を防止するためには測定作業を繰り返
す必要があつた。"Problem to be Solved by the Invention" The conventional hardness meter has a measuring piece 37 housed in a long groove 35 provided in the side wall of a cylindrical body 31 so as to be movable up and down. Therefore, if this long groove 35 is not turned downward during measurement work on site, soil may enter between the measuring piece 37 and the long groove 35, causing a change in frictional resistance when the measuring piece moves. Or measurement piece 37
Since the measuring piece is simply located within the long groove 35, the measurement piece will move if a shock is applied from the outside, which tends to cause errors in the measured values. Therefore, in order to prevent errors, it is necessary to It was necessary to repeat.
本考案は上述の如き欠点に鑑みてなされたもの
で、円筒本体に何らの溝も設けず、指標部を正確
に読み取れるようにし、土壌中から測定子を引き
抜いても指標部が移動しないようにすることを目
的とする。 The present invention was developed in view of the above-mentioned drawbacks, and the cylindrical body does not have any grooves, so that the indicator part can be read accurately, and the indicator part does not move even if the probe is pulled out from the soil. The purpose is to
「課題を解決するための手段」
本考案は、下方鍔部を設けた下部体を下端に螺
着させた円筒本体の上端に、上方鍔部を設けた上
部体を螺着し、該円筒本体の内部下方には上方か
ら圧縮ばねで弾発させて下面に円錐面を有した測
定子を下方に付勢させて上下動可能に装着すると
共に、該測定子の上部外周には前記下部体の上端
と掛止する係止段部を形成し、該上部体の中心に
設けた通孔内に上下動可能に挿通させて磁性材よ
りなる連結杆の上端に目盛を有した指標部を固着
して、前記上部体の上方から出没可能に配し、中
間部に掛止片を固定した該連結杆の下部を前記測
定子の上部に設けた盲孔内に挿入し、該上部体の
中心に設けた通孔に連結して形成した連通孔内に
前記連結杆を挿通し、且つ、前記上部体内に固定
した磁石片に接して上下動可能に配する構成を、
上記課題を解決するための手段とするものであ
る。``Means for Solving the Problems'' The present invention consists of screwing an upper body provided with an upper flange to the upper end of a cylindrical body to which a lower body provided with a lower flange is screwed to the lower end. A measuring element having a conical surface on the lower surface is biased downward by a compression spring from above and is attached to the lower part of the inside of the body so as to be movable up and down. A locking stepped portion is formed to be hooked to the upper end, and an index portion having a scale is fixed to the upper end of a connecting rod made of a magnetic material by inserting the locking step into a through hole provided in the center of the upper body so as to be able to move up and down. Then, insert the lower part of the connecting rod, which is disposed so as to be retractable from above the upper body and has a hook piece fixed to the middle part, into the blind hole provided in the upper part of the probe, and insert the lower part of the connecting rod into the center of the upper body. The connecting rod is inserted into a communicating hole formed in connection with the provided through hole, and is arranged so as to be movable up and down in contact with a magnet piece fixed in the upper body,
This is a means to solve the above problems.
「作用」
表面に目盛を有した指標部を円筒本体の上部か
ら出没可能に構成し、円筒本体の壁面には溝を設
けないので円筒本体内に土壌が侵入することがな
い。また、指標部を有した連結杆は常時磁石片に
接して収容しているため、連結杆は磁石片に吸着
固定してその位置に静止する。再び、測定する場
合には、手でこの指標部を円筒本体内に押し込め
ば、次回の測定に備えることができる。``Function'' The index portion having a scale on its surface is configured to be retractable from the upper part of the cylindrical body, and since no groove is provided on the wall surface of the cylindrical body, soil does not enter the cylindrical body. Furthermore, since the connecting rod having the index portion is housed in contact with the magnet piece at all times, the connecting rod attracts and fixes to the magnet piece and remains stationary at that position. When measuring again, the index portion can be manually pushed into the cylindrical body in preparation for the next measurement.
「実施例」
本考案の実施例を図面により説明すると、円筒
本体１の下端に大径な下方鍔部２を設けた下部体
３を螺着し、また、この円筒本体１の上端には大
径な上方鍔部４を有した上部体５を螺着してあ
る。６は下面に円錐面７を有した測定子で、上部
には円筒本体１の内面に略接するように収容させ
た支持円筒８を連結してあり、この支持円筒の下
端部分に位置させて、該測定子の外周には係止段
部１８を形成し、該係止段部は前記下部体の上端
部に掛止するよにしてある。``Example'' An example of the present invention will be described with reference to the drawings. A lower body 3 having a large diameter lower flange 2 is screwed onto the lower end of a cylindrical body 1, and a large An upper body 5 having a large diameter upper flange 4 is screwed onto the upper body 5. Reference numeral 6 denotes a measuring element having a conical surface 7 on the lower surface, and a support cylinder 8 housed in the upper part thereof is connected so as to be substantially in contact with the inner surface of the cylindrical body 1. A locking step portion 18 is formed on the outer periphery of the probe, and the locking step portion is adapted to be hooked to the upper end portion of the lower body.
この上部体５の中心部に設けた通孔１０内に
は、表面に目盛１１を有した指標部１２を該上部
体５の上部から出没可能に収容し、該指標部１２
を上部に固着して磁性材よりなる連結杆１３の略
下部には円盤状をした掛止片１４を設けてあり、
下部体３の上部に掛止させ、この連結杆１３の下
端には前記測定子６の上部に設けた盲孔９内に係
脱可能に挿入してある。 In a through hole 10 provided in the center of the upper body 5, an index part 12 having a scale 11 on the surface is housed so as to be retractable from the upper part of the upper body 5.
A connecting rod 13 made of a magnetic material is fixed to the upper part, and a disk-shaped hooking piece 14 is provided approximately at the bottom of the connecting rod 13 made of a magnetic material.
It is hooked onto the upper part of the lower body 3, and the lower end of this connecting rod 13 is removably inserted into a blind hole 9 provided in the upper part of the measuring element 6.
上部体５の中心に設けた通孔１０と同心に連結
して設けた連通孔１６内には、上下動可能に挿通
させた連結杆１３に常時接触させている長尺な磁
石片２０を該上部体５に取付けてある。この上部
体５と測定子６との間には圧縮ばね２１を弾発さ
せて、常に測定子６を下方に付勢させてあるが、
該測定子６の係止段部１８が下部体３の上端に掛
止するので、円筒本体１内から該測定子６が脱出
することはない。 A long magnet piece 20 is placed in a communication hole 16 provided concentrically with a communication hole 10 provided in the center of the upper body 5, and is in constant contact with a connecting rod 13 that is inserted so as to be vertically movable. It is attached to the upper body 5. A compression spring 21 is provided between the upper body 5 and the probe 6 to constantly bias the probe 6 downward.
Since the locking stepped portion 18 of the measuring element 6 is engaged with the upper end of the lower body 3, the measuring element 6 does not escape from the inside of the cylindrical body 1.
次に、本実施例の作用について説明すると、先
ず、測定個所の土壌面２５の表面を平滑に削り、
次いで、円筒本体１の下部に設けた下方鍔部２の
下面が土壌の表面に正確に接するように当接する
まで該円筒本体１を下降させて静かに土壌中に押
し込む。この場合、測定子６の円錐面７に加わる
土壌との摩擦抵抗が高まるにつれて、該測定子６
は圧縮ばね２１の弾発力に抗して後退する。即
ち、円筒本体１内を上昇し、この測定子６の上昇
により、該測定子６の上部が係止している掛止片
１４を介して、該掛止片１４と一体の連結杆１３
を後退させ、この連結杆１３の上部に固着させた
指標部１２を上部体５の外部に突出させ、この指
標部１２の表面の目盛１１を読み取つて土壌硬度
を測定するものである。 Next, to explain the operation of this embodiment, first, the surface of the soil surface 25 at the measurement location is scraped smooth,
Next, the cylindrical body 1 is lowered and gently pushed into the soil until the lower surface of the lower flange 2 provided at the lower part of the cylindrical body 1 comes into precise contact with the surface of the soil. In this case, as the frictional resistance between the conical surface 7 of the measuring element 6 and the soil increases, the measuring element 6
moves backward against the elastic force of the compression spring 21. That is, as the gauge head 6 rises inside the cylindrical body 1, the upper part of the gauge head 6 is engaged with the connecting rod 13, which is integral with the retainer piece 14, via the hook piece 14.
is moved backward, and the indicator part 12 fixed to the upper part of this connecting rod 13 is made to protrude outside of the upper body 5, and the scale 11 on the surface of this indicator part 12 is read to measure the soil hardness.
この場合、連結杆１３は常に磁性片２０に接し
ているため、測定子６の下面の円錐面７に加わる
抵抗がなくなると、即ち、土壌中から引き抜かれ
ると、圧縮ばね２１の弾発力により測定子６は下
降して元の位置に復帰する。しかし、指標部１２
を有した連結杆１３は、上部体５に装着した磁性
片２０に吸着保持されるので、測定値を正確に読
みとることができる。 In this case, since the connecting rod 13 is always in contact with the magnetic piece 20, when the resistance applied to the conical surface 7 on the lower surface of the probe 6 disappears, that is, when it is pulled out from the soil, the elastic force of the compression spring 21 The probe 6 descends and returns to its original position. However, the indicator part 12
Since the connecting rod 13 having the above-mentioned shape is attracted and held by the magnetic piece 20 attached to the upper body 5, the measured value can be read accurately.
土壌硬度を再度測定する場合は、上部体５の外
方に突出している指標部１２を手で内筒本体１内
に押し込み、掛止片１４が測定子６の上部に掛止
するまで円筒本体１の盲孔９内に侵入させれば、
測定のための準備は完了する。 To measure the soil hardness again, push the indicator part 12 protruding outward of the upper body 5 into the inner cylinder body 1 by hand until the hooking piece 14 hooks on the top of the measuring tip 6. If it penetrates into the blind hole 9 of 1,
Preparations for measurement are completed.
「考案の効果」 本考案は以下のような効果を有している。"Effect of ideas" The present invention has the following effects.
指標部を有する連結杆は測定子に連結し、上
部体内に設けた磁石片によつて吸着保持される
ため、測定作業終了後に該測定子が圧縮ばねに
よつて元の位置に復帰しても、連結杆が磁石片
に吸着固定されているため指標部は移動せず、
測定値の誤差を防止できる。 The connecting rod with the index part is connected to the gauge head and is held by attraction by a magnet piece installed inside the upper body, so even if the gauge head returns to its original position by the compression spring after the measurement job is completed, it will not work. , because the connecting rod is fixed to the magnet piece, the indicator does not move.
Errors in measurement values can be prevented.
指標部は円筒本体の上部から出没し、円筒本
体の周面に指標を設けてないので、測定者が円
筒本体を保持する場合の制約はなく、測定作業
が容易となる。 Since the index portion protrudes from the top of the cylindrical body and no index is provided on the circumferential surface of the cylindrical body, there are no restrictions when the measurer holds the cylindrical body, making the measurement work easier.
本装置を土壌中から引き出して、測定者の目
の前に位置して指標部を観察できるので、測定
誤差が極めて少ない。 Since this device can be pulled out of the soil and placed in front of the measurer to observe the indicator, measurement errors are extremely small.
指標部を取付けた連結杆は磁性材で形成して
あり、常に磁石に吸着しているので、本装置の
携帯中に該指標部が突出して破損することはな
い。 The connecting rod to which the indicator is attached is made of a magnetic material and is always attracted to the magnet, so the indicator will not protrude and be damaged while the device is being carried.
円筒本体の壁面に何らの開口部も設けてない
ため、本体内に土壌が侵入することがなく、土
壌中に押し込む際には従来のように該本体の方
向性を考える必要がない。 Since there are no openings in the wall of the cylindrical body, soil will not enter the body, and there is no need to consider the direction of the body when pushing it into the soil, unlike in the conventional case.
円筒本体の上端及び下端に上部体及び下部体
を螺着してあるので、たとえ土壌が円筒本体内
に侵入しても分解して該土壌を取出すことがで
き、また、本装置は構造が簡単であるから、容
易に分解することができるものである。 Since the upper and lower bodies are screwed onto the upper and lower ends of the cylindrical body, even if soil gets into the cylindrical body, it can be disassembled and the soil can be taken out, and this device has a simple structure. Therefore, it can be easily disassembled.
測定子の下面は円錐面であるため、小さな力
で該測定子を土壌中に打ち込むことができ、圧
縮ばねの力が小さくてすむので、装置の小型軽
量化が可能となり、使い易い利点を有してい
る。 Since the lower surface of the probe is a conical surface, it is possible to drive the probe into the soil with a small force, and the force of the compression spring is small, making it possible to reduce the size and weight of the device, which has the advantage of ease of use. are doing.
第１図は本考案の実施例を示した全体の縦断面
図である。第２図は作動状態を示す縦断面図であ
る。第３図は第１図Ａ−Ａ線断面図である。第４
図は従来の装置の正面図、第５図も同正面図であ
る。
１……円筒本体、２……下方鍔部、４……上方
鍔部、５……上部体、６……測定子、１０……通
孔、１２……指標部、１３……連結杆、２０……
磁石片、２１……圧縮ばね。
FIG. 1 is an overall vertical sectional view showing an embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing the operating state. FIG. 3 is a sectional view taken along the line A--A in FIG. 1. Fourth
The figure is a front view of a conventional device, and FIG. 5 is also a front view of the same. DESCRIPTION OF SYMBOLS 1...Cylindrical body, 2...Lower flange, 4...Upper flange, 5...Upper body, 6...Measuring point, 10...Through hole, 12...Indicator part, 13...Connecting rod, 20...
Magnet piece, 21...compression spring.
Claims (1)
筒本体の上端に、上方鍔部を設けた上部体を螺着
し、該円筒本体の内部下方には上方から圧縮ばね
で弾発させて下面に円錐面を有した測定子を下方
に付勢させて上下動可能に装着すると共に、該測
定子の上部外周には前記下部体の上端と掛止する
係止段部を形成し、該上部体の中心に設けた通孔
内に上下動可能に挿通させた磁性材よりなる連結
杆の上端に目盛を有した指標部を固着して、前記
上部体の上方から出没可能に配し、中間部に掛止
片を固定した該連結杆の下部を前記測定子の上部
に設けた盲孔内に挿入し、該上部体の中心に設け
た通孔に連結して形成した連通孔内に前記連結杆
を挿通し、且つ、前記上部体内に固定した磁石片
に接して上下動可能に配してなる土壌硬度測定
器。 An upper body provided with an upper flange is screwed onto the upper end of a cylindrical body to which a lower body provided with a lower flange is screwed to the lower end, and a compression spring is applied from above to the inside of the cylindrical body at the lower part. a measuring element having a conical surface on the lower surface is biased downward and mounted so as to be movable up and down, and a locking step portion is formed on the upper outer periphery of the measuring element to be engaged with the upper end of the lower body, An index portion having a scale is fixed to the upper end of a connecting rod made of a magnetic material that is vertically movably inserted into a through hole provided in the center of the upper body, and is arranged so as to be retractable from above the upper body. , the lower part of the connecting rod with the hook piece fixed to the middle part is inserted into the blind hole provided in the upper part of the measuring head, and is connected to the through hole provided in the center of the upper body to form a communicating hole. A soil hardness measuring device, wherein the connecting rod is inserted into the upper body, and the soil hardness measuring device is arranged so as to be movable up and down in contact with a magnet piece fixed in the upper body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986020103U JPH0545962Y2 (en) | 1986-02-17 | 1986-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986020103U JPH0545962Y2 (en) | 1986-02-17 | 1986-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62132447U JPS62132447U (en) | 1987-08-21 |
| JPH0545962Y2 true JPH0545962Y2 (en) | 1993-11-30 |
Family
ID=30815299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986020103U Expired - Lifetime JPH0545962Y2 (en) | 1986-02-17 | 1986-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0545962Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH088439Y2 (en) * | 1990-10-19 | 1996-03-06 | 株式会社丸東製作所 | Penetrometer |
| JP5872878B2 (en) * | 2011-12-16 | 2016-03-01 | 株式会社 大垣鐵工所 | Portable rock wear measuring instrument, measurement auxiliary tool, and compression spring biasing force setting device for the measuring tool |
| JP6541112B2 (en) * | 2017-05-02 | 2019-07-10 | 大起理化工業株式会社 | Soil hardness measuring device |
| KR102081802B1 (en) * | 2018-03-02 | 2020-02-27 | 한국지질자원연구원 | Automated measuring equipment of soil depth and strength in mountainous area |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934384A (en) * | 1972-07-27 | 1974-03-29 | ||
| JPS54143286A (en) * | 1978-04-28 | 1979-11-08 | Akashi Seisakusho Kk | Device for setting position of loading axis of durometer |
-
1986
- 1986-02-17 JP JP1986020103U patent/JPH0545962Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934384A (en) * | 1972-07-27 | 1974-03-29 | ||
| JPS54143286A (en) * | 1978-04-28 | 1979-11-08 | Akashi Seisakusho Kk | Device for setting position of loading axis of durometer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62132447U (en) | 1987-08-21 |
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