JP3040455U - Standing wood tape measure - Google Patents
Standing wood tape measureInfo
- Publication number
- JP3040455U JP3040455U JP1997001803U JP180397U JP3040455U JP 3040455 U JP3040455 U JP 3040455U JP 1997001803 U JP1997001803 U JP 1997001803U JP 180397 U JP180397 U JP 180397U JP 3040455 U JP3040455 U JP 3040455U
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- volume
- value
- tape measure
- tree
- 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
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- Tape Measures (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
(57)【要約】
【目的】 胸高直径に対する幹材積の値が盛り込まれて
いる直径割り巻尺で単木または、林分の材積を極めて簡
単に、しかも正確に求められるものである。
【構成】やや広巾の直径割り巻尺上に、針葉樹の5ラン
ク別材積表値を、7.2mの直径の範囲によって、選定
できるように簡潔に表示したものである。
【効果】初回の測定時に、7.2mの直径を測定して、
その樹またはその林分の成長状態により、5ランク別に
判別しておけば、伐期まで7.2mの直径の測定は不用
となり、以後は、ポケットの中の本考案の立木材積巻尺
だけで、極めて簡単にしかも正確に立木材積を把握し得
る。
(57) [Summary] [Purpose] It is a simple and accurate method to determine the volume of a single tree or stand with a diameter-divided tape measure that includes the value of the stem volume for the breast height. [Structure] The volume table values for 5 ranks of conifers are simply displayed on a rather wide diameter-divided tape measure so that they can be selected according to the diameter range of 7.2 m. [Effect] At the first measurement, measure the diameter of 7.2m,
Depending on the growth status of the tree or its forest, if it is distinguished by 5 ranks, the measurement of the diameter of 7.2 m becomes unnecessary until the cutting season, after that, only the standing timber tape measure of the present invention in the pocket, The standing timber volume can be grasped very easily and accurately.
Description
【0001】 [産業上の利用分野] 本考案は、直径割り巻尺上に、針葉樹、例えばひのきの立木幹材積が目盛って あるもので、その樹の胸高(地上1.2m)部に、巻尺を巻きつければ、直ちに その樹の胸高直径と、それに対応する立木幹材積が、求められるものである。[Field of Industrial Application] [0001] The present invention is a tape measure with a scale of a coniferous tree, for example, a standing tree trunk of cypress, on a diameter-divided tape measure. If the tree is wrapped, the diameter at the chest height of the tree and the corresponding timber trunk volume are immediately required.
【0002】 [従来の技術] 従来から立木の材積は、その樹の胸高直径と樹高を測って、材積早見表から求 められていた。胸高直径は地上1.2mであるから、正確に実測し得る。樹高は 、各種の測高器によって測定されているが、その測定は相当に困難なものである 。なぜなれば、良好な林分ほど、樹冠はうっぺいしていて、下からその梢端が見 えない場合が多い。いかに精度の高い材積表や、測高器を用いても、樹高値が不 正確であれば、その求積値はやはり、不正確であると言わざるを得ない。[Prior Art] Conventionally, the volume of standing trees has been obtained from a volume chart by measuring the chest height diameter and tree height of the tree. The chest height is 1.2m above the ground, so it can be measured accurately. Tree height is measured by various height gauges, but the measurement is quite difficult. The reason for this is that the better the stand, the more the crown is overcrowded, and the treetops are often not visible from below. If the tree height value is inaccurate, no matter how accurate the volume table or the height measuring instrument is used, the quadrature value must be inaccurate.
【0003】 そこでこのような測定困難な樹高値によらず、求積できる材積表がある。(日 本林学会誌昭和43年3月号及び、林業技術誌平成4年3月号)。それは実測可 能な上部直径のうち、地上7.2mの直径と、胸高直径との二直径による立木材 積表[表1]である。7.2mの直径は、7.2mの竿の先に、cm尺をT字形 にとりつけて、下から判読するものである。二直径とも実測値であるので、その 求積精度は画期的に向上した。[0003] Therefore, there is a volume table that can obtain a volume regardless of such a tree height value that is difficult to measure. (Journal of the Japan Forestry Society, March 1968 issue, and Forestry Technical Journal, March 1992 issue). It is the standing timber volume table [Table 1] based on the diameter of 7.2 m above the ground and the diameter at the chest height among the measurable upper diameters. The diameter of 7.2m is to be read from below by attaching a cm scale in a T shape to the tip of a 7.2m rod. Since both diameters are measured values, the quadrature accuracy has improved dramatically.
【0004】 [考案が解決しようとする課題] しかし測定に当っては、1.2mの直径を測る大型のノギス(輪尺)か、長さ だけを示す直径割り巻尺と、7.2mの上部直径測定尺及び、材積表の三つが必 要である。[Problems to be solved by the invention] However, in the measurement, a large caliper measuring 1.2 m in diameter, or a diameter-divided tape measure showing only the length, and an upper part of 7.2 m A diameter measuring rule and a volume table are required.
【0005】 そこで直径割り巻尺上に、材積表値を盛り込んでおけば、ポケットに入るその 小型の物さしと、上部直径測定尺だけでよいことになる。しかし、従来の樹高値 による材積表では、狭いスペースに簡潔に表示することは、到底できないが、さ きに述べた7.2mの直径値による材積表は、胸高直径による一変数式であり、 しかも、その成長により5ランク別になっている。Therefore, if the volume table value is included on the diameter-divided tape measure, only the small scale and the upper diameter measuring tape that enter the pocket are sufficient. However, in the conventional volume table based on tree height value, it is not possible to simply display it in a narrow space, but the volume table based on the diameter value of 7.2 m described above is a univariate expression based on the breast height diameter. Moreover, due to its growth, it is classified into 5 ranks.
【0006】 [課題を解決するための手段] 本考案に利用する材積表は、7.2mの直径の範囲値と無皮材積表値を利用す ればよい。[Means for Solving the Problems] As a volume table used in the present invention, a range value of diameter of 7.2 m and a non-skin volume table value may be used.
【0007】 しかもこの材積表は、7.2mの直径によって、その成長状態が5ランク別に なっているので、測定精度が極めて高い。Moreover, in this volume chart, since the growth state is classified into 5 ranks by the diameter of 7.2 m, the measurement accuracy is extremely high.
【0008】 材積を求める前に、単木であれば、1本、1本の7.2mの直径を測っておい て、その樹が5ランクのうちのどのランクであるかを、知っておく必要がある。Before determining the volume, if it is a single tree, measure the diameter of one tree at 7.2 m and know which of the five ranks the tree has. There is a need.
【0009】 林分の材積を求める場合は、同じく求積前に、その林分の平均直径を測定して おいて、その林分の平均木を選定して、その樹の7.2mの直径を測定して、そ の林分のランクを決定する必要がある。勿論、林分の全本数の7.2mの直径を 測定して、ランクを決めたほうが正確ではある。When obtaining the volume of a forest, the average diameter of the forest is measured before the quadrature, the average tree of the forest is selected, and the diameter of the tree is 7.2 m. Must be measured to determine the rank of that stand. Of course, it is more accurate to determine the rank by measuring the diameter of 7.2m of the total number of stands.
【0010】 その樹のランクが判明した上で、その樹の胸高周囲を、本考案の立木材積巻尺 を用いるのである。巻尺は、円周長を円周率で除した値が、1cm括約値で示し てあり、その値に対比して幹材積が5ランク別に示しであるから、さきに判明し ているランクの値を見れば、それがその樹の立木幹材積である。After the rank of the tree is known, the standing tape measure of the present invention is used around the chest height of the tree. For the tape measure, the value obtained by dividing the circumference length by the circumference ratio is shown as a 1 cm lumped value, and the trunk material volume is shown for each of the five ranks in comparison with that value. Looking at the value, it is the tree trunk volume of the tree.
【0011】 ひとたびその樹または、その林分のランクが判明すれば、以後伐期までそのラ ンクを変更することなく求積するので、その後は7.2mの上部直径測定の必要 はなく、立木材積巻尺だけでよいから、測定は極めて簡単で正確である。[0011] Once the rank of the tree or the stand is known, the quadrangle is obtained without changing the rank until the cutting period, so that it is not necessary to measure the upper diameter of 7.2 m after that. The measurement is extremely simple and accurate because only a volume tape measure is required.
【0012】 [実施例] 実施例について図表を参照して説明する。 [図1]において、本考案の巻尺の主要部分を、[表1]と対比して説明する と、全長が約2mの巻尺で、直径が約62cmまで測定できる。 1は括約値を示す本考案の0cmの点に相当し、はっきりした矢印が下向きに つけてある。この点は、円周長を円周率で除した値の一般的な尺の0点2よりも +1.57cmの点を基準点0、1にしたものである。即ち直径割り値を1cm 括約値で読み取るようになっている。ここでは10cmとは、9.5〜10.4 cmを意味する。3は胸高直径値が6cmの立木材積表値である。胸高直径が1 〜5cmは、7.2mの直径が出現していないので、測定できないから空白にな っている。4は充分に説明し得る直径階として選んだ、任意の値で、胸高直径が 10cm付近である。5は中値の7.2mの直径の範囲、3〜6cmである。6 は中の上値の7.2mの直径の範囲で、6〜8cmである。7は上値の7.2m の直径の範囲で、8cm以上である。8は中の下値の7.2mの直径の範囲で、 2〜3cmである。9は下値の7.2mの直径の範囲で、2cm以下である。[Example] An example will be described with reference to the drawings. The main part of the tape measure of the present invention will be described with reference to [Table 1] in [Fig. 1]. A tape measure having a total length of about 2 m and a diameter of up to about 62 cm can be measured. 1 corresponds to the point of 0 cm of the present invention showing the contracted value, and a clear arrow is attached downward. At this point, the reference points 0 and 1 are points that are +1.57 cm from the 0 point 2 of the general rule of the value obtained by dividing the circumference length by the pi. That is, the diameter division value is read as a 1 cm contraction value. Here, 10 cm means 9.5 to 10.4 cm. 3 is a standing timber volume table value with a breast height diameter value of 6 cm. At a breast height of 1 to 5 cm, a diameter of 7.2 m has not appeared, so it is blank because it cannot be measured. 4 is an arbitrary value selected as a diameter scale that can be sufficiently explained, and the breast height diameter is around 10 cm. 5 is in the mid-range 7.2 m diameter range, 3-6 cm. 6 is the range of diameter of 7.2 m which is the upper limit of the medium, and is 6 to 8 cm. 7 is a range of the diameter of 7.2 m 2 which is the upper limit, and is 8 cm or more. 8 is the lower range of the diameter of 7.2 m, which is 2-3 cm. 9 is the lower limit of the diameter of 7.2 m, which is 2 cm or less.
【0013】 若し、胸高直径が10cmで、7.2mの直径が、3〜6cmであれば、その 樹またはその林分は、成長中値であり、その材積は、10、0.04m3である 。若しその樹の7.2mの直径が7cmであれば、ランクは中の上であり、その 材積11、は0.05m3である。若し7.2mの直径が8cm以上であれば、 ランクは上となりその材積12、は0.06m3である。若し7.2mの直径が 2.5cmであれば、ランクは中の下となり、その材積13、は0.03m3と なる。若し7.2mの直径が1cmであれば、ランクは下となり、その材積14 、は0.02m3となる。If the breast height diameter is 10 cm and the diameter of 7.2 m is 3 to 6 cm, the tree or the stand thereof is at the mid-growth value, and the volume thereof is 10, 0.04 m 3 Is. If the tree had a 7.2 m diameter of 7 cm, the rank was medium-up, and its volume 11 was 0.05 m 3 . If the diameter of 7.2 m is 8 cm or more, the rank is higher and its volume is 12, which is 0.06 m 3 . If the diameter of 7.2 m is 2.5 cm, the rank will be below the middle, and the volume 13 will be 0.03 m 3 . If the diameter of 7.2 m is 1 cm, the rank is lower and the volume 14 is 0.02 m 3 .
【0014】 ここで判明したランクは、伐期まで変更すべきでない。なぜなれば、今年測定 した値から前年測定した値を差引けば、一年間の成長量が得られる。測定の度に ランクを変更すれば、年間成長量の測定は何の意味もなくなる。The rank found here should not be changed until the cutting season. The reason is that if you subtract the value measured in the previous year from the value measured in this year, you can obtain the growth amount for one year. If you change the rank for each measurement, measuring annual growth will be meaningless.
【0015】 だから本考案は、その樹または、その林分を測定する初回だけ、7.2mの上 部直径測定尺が必要であるが、その後は7.2mの上部直径測定尺は不必要にな る。Therefore, according to the present invention, an upper diameter measuring scale of 7.2 m is necessary only after the first measurement of the tree or the forest, but an upper diameter measuring scale of 7.2 m is unnecessary thereafter. Become.
【0016】 [効果] その樹または、その林分を測定する初回だけ、7.2mの上部直径測定尺が必 要であるが、その後は、この尺が不必要になり、直径割り巻尺上に、立木材積表 値が盛り込まれているので、単独の立木材積表も不用となるから、結局、本考察 の立木材積巻尺だけで測定できることになる。即ち、初回だけ7.2mの上部直 径測定尺と、立木材積巻尺の二つの器具が必要であるが、その後は伐期まで何年 も、あるいは何十年も、本考案の立木材積巻尺だけで、単木や林分の材積測定が できる。[Effect] The upper diameter measuring scale of 7.2 m is necessary only for the first time of measuring the tree or the forest, but after that, this measuring scale becomes unnecessary, and the diameter measuring tape measure is used. Since the value of the standing timber volume table is included, a single standing timber volume table is not necessary, so that it can be measured only by the standing timber volume tape measure of this consideration. In other words, only the first instrument of 7.2 m in diameter and the tape measure for standing timber are required only for the first time. With this, you can measure the volume of single trees and stands.
【0017】 仮に初回にあっても、上部直径を測定しなくて、本考案の巻尺だけでも、その 樹または、その林分のおおよその材積、中値を知ることができる。Even at the first time, without measuring the upper diameter, it is possible to know the approximate volume and medium value of the tree or the forest using only the tape measure of the present invention.
【0018】 本考案の使用に慣れてくると、その樹または、その林分が5ランクのうちのど のランクかが判断できるようになるので、林分の測定が初回でありながら、上部 直径測定尺がなくても、不自由でなくなる。即ち本考案だけで測定できる。As the user becomes accustomed to the use of the present invention, it becomes possible to determine which of the five ranks the tree or the stand has, so that the upper diameter measurement can be performed even when the stand is measured for the first time. Even if you do not have a scale, you will not be crippled. That is, it can be measured only by the present invention.
【0019】 皮付き直径値で皮無し材積が得られるので、測定値から樹皮体積を差引く手数 が省ける。Since the volume without skin can be obtained by the diameter value with skin, it is possible to save the trouble of subtracting the bark volume from the measured value.
【0020】 輪尺を利用して直径を測るときは、必ず直角二方向より測定しで平均して平均 値をとる必要があったが、本考案では一回だけの測定でよい。When the diameter is measured by using a wheel measure, it is necessary to measure from two directions at right angles and take an average to take an average value, but in the present invention, the measurement may be performed only once.
【0021】 材積式が、胸高直径による一変数材積式であると同時に、直径割り巻尺を使用 するわけだから、その測定値は正確で安定しているので、年間成長量測定に最も 良い。Since the volume formula is a univariate volume formula based on the diameter at the breast height, and at the same time the diameter-divided tape measure is used, the measured values are accurate and stable, which is the best for the annual growth measurement.
【0022】 測定する直径は、1cm括約値で示してあるので、巻尺を見た瞬間、測定値を 読み取ることができる。 Since the diameter to be measured is indicated by a 1 cm contraction value, the measured value can be read at the moment when the tape measure is viewed.
[表1]はひのき立木材積表である。[図1]は立木材
積巻尺の一部を示した平面図である。[Table 1] is a cypress standing timber volume table. [Fig. 1] is a plan view showing a part of a standing wood tape measure.
1.1cm括約値で示す本考案巻尺の0の点 2.一般的な直径割り巻尺の0の点 3.胸高直径が6cmの材積表値 4.任意の胸高直径(10cm)の材積表値 5.中値の7.2mの直径の範囲 6.中の上値の7.2mの直径の範囲 7.上値の7.2mの直径の範囲 8.中の下値の7.2mの直径の範囲 9.下値の7.2mの直径の範囲 10.中値の材積値 11.中の上値の材積値 12.上値の材積値 13.中の下値の材積値 14.下値の材積値 Point 0 of the tape measure of the present invention indicated by a 1.1 cm contraction value. Point 0 of a general diameter-divided tape measure. 3. Volume table value with chest height of 6 cm. Volume table value for any breast height diameter (10 cm) 5. Mid-range diameter range of 7.2 m 6. 7. Upper diameter range of 7.2 m diameter 7. 7. Diameter range of 7.2 m above price. Lower diameter range of 7.2 m in the middle 9. Downside diameter range of 7.2 m 10. Medium volume value 11. Medium upper volume value 12. Upper volume value 13. Medium volume value of the bottom price 14. Lower volume value
Claims (1)
の目盛りをもつ装置。1. A device having a scale for standing timber trunk volume of conifers on a diametric tape measure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1997001803U JP3040455U (en) | 1997-02-10 | 1997-02-10 | Standing wood tape measure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1997001803U JP3040455U (en) | 1997-02-10 | 1997-02-10 | Standing wood tape measure |
Publications (1)
Publication Number | Publication Date |
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JP3040455U true JP3040455U (en) | 1997-08-19 |
Family
ID=43175030
Family Applications (1)
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JP1997001803U Expired - Lifetime JP3040455U (en) | 1997-02-10 | 1997-02-10 | Standing wood tape measure |
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JP (1) | JP3040455U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112985232A (en) * | 2021-04-28 | 2021-06-18 | 唐源盛 | Tool, system and method for quickly measuring breast diameter of forest tree |
-
1997
- 1997-02-10 JP JP1997001803U patent/JP3040455U/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112985232A (en) * | 2021-04-28 | 2021-06-18 | 唐源盛 | Tool, system and method for quickly measuring breast diameter of forest tree |
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