JP2536018Y2 - Portable drilling device with automatic feed mechanism - Google Patents
Portable drilling device with automatic feed mechanismInfo
- Publication number
- JP2536018Y2 JP2536018Y2 JP1993038247U JP3824793U JP2536018Y2 JP 2536018 Y2 JP2536018 Y2 JP 2536018Y2 JP 1993038247 U JP1993038247 U JP 1993038247U JP 3824793 U JP3824793 U JP 3824793U JP 2536018 Y2 JP2536018 Y2 JP 2536018Y2
- Authority
- JP
- Japan
- Prior art keywords
- constant load
- load spring
- feed mechanism
- automatic feed
- portable
- 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
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling And Boring (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は自動送り機構付き可搬穿
孔装置に関し、より詳しくは軽量コンパクトで比較的ス
トロークが長くとれ、送り圧力の調節が可能な自動送り
機構付き可搬穿孔装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable piercing device with an automatic feed mechanism, and more particularly, to a portable piercing device with an automatic feed mechanism that is lightweight, compact, has a relatively long stroke, and can adjust the feed pressure.
【0002】[0002]
【従来技術と課題】従来、ドリルまたはコアビット等の
可搬穿孔装置に用いられる自動送り機構は例えば図10
に示されるような電動自動送り機構であり、減速機付き
電気モータ201より電磁クラッチを介してピニオンを
駆動するものであったから、必然的に構造の複雑化と重
量増を免れず、コンクリート建造物、ヒユーム管、U字
溝等の天井部や側壁部を穿孔するために使用する可搬式
穿孔装置には使用し難いという問題点があった。加えて
これらの電動式自動送り装置には、送り方向切換、電動
機電流制御等を行うための制御器202を備える必要が
あり、この制御器は穿孔ヘッドのスライドブロック等に
付設する場合もあり、また別体として例えば床上に備え
る場合もあったが、全体として構造の複雑化、重量増を
避ける事は出来なかった。穿孔モータ(大きいもので3
KW程度)の作動により電灯電源では電圧降下が生じ、
これが誤動作の原因になる事があった。2. Description of the Related Art Conventionally, an automatic feed mechanism used in a portable drilling device such as a drill or a core bit is shown in FIG.
And the pinion is driven by an electric motor 201 with a speed reducer via an electromagnetic clutch, so that the structure is inevitably complicated and the weight is increased. However, there is a problem that it is difficult to use a portable piercing device used for piercing a ceiling portion or a side wall portion such as a hyume tube and a U-shaped groove. In addition, these electric automatic feeders need to be provided with a controller 202 for performing feed direction switching, motor current control, and the like, and this controller may be attached to a slide block or the like of a drilling head, In addition, there was a case where it was separately provided, for example, on the floor, but it was not possible to avoid a complicated structure and an increase in weight as a whole. Drilling motor (3 large
The voltage drop occurs in the lamp power supply due to the operation of
This sometimes caused a malfunction.
【0003】またより単純化するために単なるコイルス
プリング、もしくはコイルスプリング内装シリンダ等が
用いられる事があったが、長さの割りにリニアな伸長も
しくは圧縮ストロークが小さく、振動発生時のダンピン
グ(収束)が良くないという問題点があった。For the purpose of further simplification, a simple coil spring or a cylinder with a coil spring is sometimes used. ) Was not good.
【0004】そして、ガスの圧縮・膨張復元を利用した
ガス入りシリンダである所謂ガススプリングも試みられ
たが、これはコイルスプリングよりも振動に対する収束
が良いという利点はあるものの、不慮貫通等で急に負荷
がなくなった時とか、穿孔ヘッドを無負荷で移動させる
時等にガススプリングの復元圧力によってレバー8を急
速に回転させると共に回転刃物が急速に軸方向移動する
結果、刃物が被穿孔物表面その他に激突したり、作業者
の身体に当たって受傷する等という危険性があった。[0004] So-called gas springs, which are gas-filled cylinders utilizing compression / expansion recovery of gas, have also been tried, but they have the advantage of better convergence to vibration than coil springs, but they suddenly penetrate due to accidental penetration or the like. When the load is no longer applied, or when the drilling head is moved with no load, the lever 8 is rapidly rotated by the restoring pressure of the gas spring, and the rotary blade is rapidly moved in the axial direction. In addition, there is a danger of crashing or hitting the worker's body and causing injury.
【0005】そこで本考案者等はガススプリングに、油
圧ダンパ等の液圧ダンパを組み合わせて自動送り機構と
する事によりこれらの課題を解決し得る事を見出し、既
に実用新案登録出願済みである。The present inventors have found that these problems can be solved by combining a gas spring with a hydraulic damper such as a hydraulic damper to form an automatic feed mechanism, and have already filed a utility model registration application.
【0006】しかし、なおガススプリングの復元挙動
は、バネ常数はコイル等に比して小さいものの、基本的
にはHookの法則に従うので、ストローク位置によっ
てコアドリル先端部と被穿孔物との間に働く圧力が変化
する事が避けられないという問題点があった。However, the restoring behavior of the gas spring, although the spring constant is smaller than that of a coil or the like, basically follows Hook's law, and therefore acts between the tip of the core drill and the object to be drilled depending on the stroke position. There was a problem that the pressure could not be changed.
【0007】なお液圧ダンパの機能には、あく迄も不慮
貫通等で急に無負荷となる場合のような過渡現象におけ
る急激な刃先移動を抑制するとか、振動の収束を図る点
にあるので、準静的な刃先移動時には格別の機能は発揮
し得ない。The function of the hydraulic damper is to suppress sudden movement of the cutting edge in transient phenomena such as when suddenly no load occurs due to accidental penetration or the like, or to converge vibration. However, no special function can be exhibited when the quasi-static blade edge moves.
【0008】そこで本考案者等はガススプリングに代え
て定荷重ばねを使用する事により、いずれのストローク
位置にも拘らず一定した刃先圧力が得られる事を見出
し、本考案に到達した。The inventors of the present invention have found that by using a constant load spring instead of a gas spring, a constant blade edge pressure can be obtained regardless of the stroke position, and arrived at the present invention.
【0009】[0009]
【考案の目的】本考案は、軽量コンパクトで、ストロー
ク位置に拘らずほぼ一定の圧力で、コアビットを被穿孔
物に対して押圧する事が可能であってかつ押圧力調節の
容易な自動送り機構付き可搬穿孔装置を提供するにあ
る。SUMMARY OF THE INVENTION The present invention is lightweight and compact, is capable of pressing a core bit against an object to be drilled with a substantially constant pressure regardless of a stroke position, and is capable of adjusting a pressing force.
An object of the present invention is to provide a portable punching device with an easy automatic feed mechanism.
【0010】本考案の他の目的は送り圧力調節を容易化
する事である。Another object of the present invention is to facilitate the adjustment of the feed pressure.
【0011】[0011]
【考案の構成】本考案により、ガイドと、ガイドに沿っ
て摺動可能な穿孔ヘッドと、穿孔ヘッドを軸方向に駆動
する自動送り機構とを備える自動送り機構付き可搬穿孔
装置において、自動送り機構が、収縮付勢方向が穿孔方
向と同一もしくは反対方向になるように配置された複数
箇の単位定荷重ばねの組合せでなる組合せ定荷重ばね
と、油圧ダンパとを備える自動送り機構である事を特徴
とする自動送り機構付き可搬穿孔装置(請求項1)、定
荷重ばねが、穿孔方向に2箇の単位定荷重ばねと反対方
向に1箇の単位定荷重ばねの組合せ定荷重ばねである請
求項1に記載の自動送り機構付き可搬穿孔装置(請求項
2)、および定荷重ばねが、複数の、鉤付き定荷重ばね
である請求項2に記載の自動送り機構付き可搬穿孔装置
(請求項3)が提供される。SUMMARY OF THE INVENTION According to the present invention, an automatic feeder is provided in a portable punching device with an automatic feeder mechanism including a guide, a punching head slidable along the guide, and an automatic feeder mechanism for driving the punching head in the axial direction. The mechanism is the contraction bias direction is the perforation direction
Multiple arranged in the same or opposite direction
Combination constant load spring consisting of a combination of unit constant load springs
And a hydraulic perforation device with an automatic feed mechanism, wherein the constant load spring is provided in the direction opposite to the two unit constant load springs in the drilling direction. The portable piercing device with an automatic feed mechanism according to claim 1 , which is a combination constant load spring of one unit constant load spring (claim 2), and the constant load spring is a plurality of hook-type constant load springs. A portable punching device with an automatic feed mechanism according to claim 2 (claim 3) is provided.
【0012】以下に実施例を用いて本考案を詳細に説明
する。Hereinafter, the present invention will be described in detail using embodiments.
【0013】[0013]
【実施例】図1は本考案実施例1の側面図(穿孔ヘッド
上昇時)、図2は同側面図(穿孔ヘッド下降時)、図3
は図2のA−A矢視図(背面図)、図4は片側の定荷重
ばねを用いた実施例2の正面図、図5は両側の定荷重ば
ねを用いた実施例3の正面図、図6は更に裏側の定荷重
ばねを用いた実施例4の側面図、図7は他の実施例5の
側面図、図8は回転式定荷重ばねの斜視図、図9は定荷
重ばねの応力一歪み特性図、図10は従来の電動式自動
送り機構付き可搬穿孔装置である。1 is a side view of a first embodiment of the present invention (when the drilling head is raised), FIG. 2 is a side view thereof (when the drilling head is lowered), and FIG.
FIG. 4 is a view taken in the direction of arrows AA in FIG. 2 (rear view), FIG. 4 is a front view of the second embodiment using a constant-load spring on one side, and FIG. 5 is a front view of a third embodiment using a constant-load spring on both sides. 6 is a side view of the fourth embodiment using a constant load spring on the back side, FIG. 7 is a side view of another embodiment 5, FIG. 8 is a perspective view of a rotary constant load spring, and FIG. 9 is a constant load spring. FIG. 10 shows a conventional portable drilling device with an electric automatic feed mechanism.
【0014】図1,2,3,4,5,6,7,8におい
て、1は自動送り機構付き可搬穿孔装置、2はガイド
柱、3は取付台、4はラック、5はダンパ、6はスライ
ドブロック、7はピニオン軸、7Aはピニオン、8はレ
バー、9は穿孔ヘッド、10はモータ、11は減速機、
12はコアビット、15は鉤固定金具、20は定荷重ば
ね、21は定荷重ばね伸長部、25は鉤、30は回転式
定荷重ばね、30Aはホルダ、31は回転式定荷重ばね
の伸長部、35は回転式定荷重ばねの鉤、36は回転式
定荷重ばねの回転軸、100は被穿孔物である。1, 2, 3, 4, 5, 6, 7, 8, 1 is a portable piercing device with an automatic feed mechanism, 2 is a guide column, 3 is a mount, 4 is a rack, 5 is a damper 6 is a slide block, 7 is a pinion shaft, 7A is a pinion, 8 is a lever, 9 is a drilling head, 10 is a motor, 11 is a speed reducer,
12 is a core bit, 15 is a hook fixing bracket, 20 is a constant load spring, 21 is a constant load spring extension, 25 is a hook, 30 is a rotary constant load spring, 30A is a holder, and 31 is a rotary constant load spring extension. , 35 are hooks of a rotary constant load spring, 36 is a rotary shaft of the rotary constant load spring, and 100 is a drilled object.
【0015】先ず基本的な実施例1から順に実施例5ま
でを説明する。First, a description will be given of a first embodiment to a fifth embodiment in order.
【0016】(実施例1) 図1,2,3において、取付台3は取付ボルト3Aによ
って被穿孔物100に取付けられている。取付台3から
垂直に(もしくは水平、その他の角度であってもよ
い。)ガイド柱2が伸びている。ガイド柱の正面側(図
1では左面)にはラック4が固着されていて、スライド
ブロック6に枢着されたピニオン軸に固着されたピニオ
ン7Aと噛合している。(Embodiment 1) In FIGS. 1, 2 and 3, the mounting base 3 is mounted on the drilled object 100 by mounting bolts 3A. A guide column 2 extends vertically (or horizontally, or at another angle) from the mounting base 3. A rack 4 is fixed to the front side (the left side in FIG. 1) of the guide column, and meshes with a pinion 7A fixed to a pinion shaft pivotally attached to the slide block 6.
【0017】スライドブロック6はガイド柱2の外側を
取り囲むようにして上下摺動自在に遊嵌されている。ス
ライドブロック6にはガイド柱2との間に例えば複数箇
のニードルローラベアリング付きローラ乃至ボールベア
リング等が付設されており、荷重の前後左右のアンバラ
ンスによって摺動困難になる事を防いでいる。The slide block 6 is loosely fitted up and down so as to surround the outside of the guide column 2. The slide block 6 is provided with, for example, a plurality of rollers with needle roller bearings, ball bearings, and the like between the guide block 2 and the slide block 6 to prevent the slide block 6 from becoming difficult to slide due to imbalance between the front, rear, left, and right.
【0018】レバー8はピニオン軸7に固着されてお
り、スライドブロック6他の重力もしくは後述する定荷
重ばねの付勢力に抗してスライドブロック6を移動させ
る他、コアビット12を被穿孔物100に初期噛込させ
る時、加圧力を増す目的等で使用する。The lever 8 is fixed to the pinion shaft 7 to move the slide block 6 against the gravity of the slide block 6 or the urging force of a constant load spring described later. It is used for the purpose of increasing the pressing force at the time of initial biting.
【0019】またスライドブロック6にはモータ10と
減速機11及びコアビット12等よりなる穿孔ヘッド9
が固着されており、スライドブロック6と共にガイド柱
2に沿って移動可能である。The slide block 6 has a drilling head 9 comprising a motor 10, a speed reducer 11, a core bit 12, and the like.
Is fixed, and is movable along the guide column 2 together with the slide block 6.
【0020】またスライドブロック6の穿孔ヘッド側最
下部には定荷重ばね20がリール20Aに巻き込まれた
状態で枢着されている。定荷重ばね伸長部21の先端部
には金属板で作られた断面J字状の鉤25がリベット等
で固着されており、この鉤25が、別途ガイド柱下部に
配設固着された棒状の鉤固定具15に係止されている。A constant load spring 20 is pivotally attached to the lowermost portion of the slide block 6 on the punching head side while being wound around the reel 20A. A hook 25 made of a metal plate and having a J-shaped cross section is fixed to a tip end of the constant load spring extension portion 21 with a rivet or the like. It is locked by a hook fixture 15.
【0021】またスライドブロック6下部とガイド柱2
の間にはオイルダンパ5が介設されており、不慮貫通等
の過渡現象を安定化すると共に振動を制振収束する。The lower part of the slide block 6 and the guide column 2
An oil damper 5 is interposed therebetween to stabilize transient phenomena such as accidental penetration and to suppress and converge vibration.
【0022】定荷重ばねは例えば大阪熱処理(株)製の
コプリング(商標)の如く、一定ストローク以上でほぼ
一定の復元付勢力を持つ一種のぜんまいばねである。そ
の特性は図9に示されるようなもので、 伸びが増大しても荷重は変わらず、一定荷重を保つ。 初荷重が大きい。 伸びが大きく、原形の30〜50倍まで使用出来る。 同一スペースに収納した際弾性エネルギの蓄積量が大
きい。 円滑に作動し、摩擦が少ない。The constant load spring is a kind of a spring having a substantially constant restoring biasing force over a certain stroke, such as Copling (trademark) manufactured by Osaka Heat Treatment Co., Ltd. Its characteristics are as shown in FIG. 9. The load does not change even when the elongation increases, and the load is kept constant. Initial load is large. It has large elongation and can be used up to 30 to 50 times the original shape. When stored in the same space, the accumulated amount of elastic energy is large. Operates smoothly with low friction.
【0023】等の特徴を持っている。It has the following features.
【0024】従って本考案用途に対し極めて適した弾性
復元力を発揮する。定荷重ばね20の単位復元付勢力を
Rとすればこの場合の押圧力は1Rである。 (実施例2) 図4に示すように定加重ばね20を片側のみ用いた場合
である。図5のように両側の定荷重ばね20,20を用
いれば押圧力は2Rとなるが、このように片側のみとす
れば簡単に押圧力を1/2の1Rとする事が出来る。 (実施例3) 図5に示すように押圧力は2Rとなる。但し、この場合
裏側に定荷重ばねはセットされない。 (実施例4) 図6において、前側に2箇の平行配置された定荷重ばね
20,20と、後側に1箇の回転式定荷重ばね30を備
えるものである。Therefore, the present invention exhibits an elastic restoring force which is extremely suitable for the use of the present invention. If the unit restoring biasing force of the constant load spring 20 is R, the pressing force in this case is 1R. (Example 2) This is a case where the constant load spring 20 is used on only one side as shown in FIG. As shown in FIG. 5, when the constant load springs 20, 20 on both sides are used, the pressing force is 2R. However, when only one side is used, the pressing force can be easily reduced to 1 / 2R, 1R. Third Embodiment As shown in FIG. 5, the pressing force is 2R. However, in this case, the constant load spring is not set on the back side. (Embodiment 4) In FIG. 6, two constant load springs 20, 20 arranged in parallel on the front side and one rotary constant load spring 30 on the rear side are provided.
【0025】回転式定荷重ばね30は図8に示されるよ
うなもので、回転軸36と図示しない公知のクリックス
トップ機構によって180゜回動停止し得る構造になっ
ている。すなわち定荷重ばね30のホルダ30Aはスラ
イドブロック6に対し、回転軸36によって枢着されて
いる。したがって定荷重ばね30の伸長部31及び鉤3
5は上、下方向に選択的に伸長、係止出来る。The rotary constant load spring 30 is as shown in FIG. 8, and has a structure that can be stopped by 180 ° by a rotary shaft 36 and a known click stop mechanism (not shown). That is, the holder 30A of the constant load spring 30 is pivotally attached to the slide block 6 by the rotating shaft 36. Therefore, the extension 31 of the constant load spring 30 and the hook 3
5 can be selectively extended and locked upward and downward.
【0026】図6の実施例4では下方向に係止している
ので、穿孔ヘッドの押圧力は2R+R=3Rとなる。 (実施例5) 図7において、摺動ブロックの押圧力は、前側に2箇の
定荷重ばねにより2R、後側に1箇の上向きの回転式定
荷重ばねにより−R、従って2R−R=Rとなる。In the fourth embodiment shown in FIG. 6, the pressing force of the drilling head is 2R + R = 3R because the hole is locked downward. (Embodiment 5) In Fig. 7, the pressing force of the sliding block is 2R by two constant load springs on the front side, and -R by one upward rotating constant load spring on the rear side, so that 2R-R = It becomes R.
【0027】更に各定荷重ばねの復元付勢力をRまたは
2R,3Rと整数倍とするか、乃至は1/2,1/3と
整数分の1とする事により、容易に全押圧力を調節する
事が出来る。Further, by setting the restoring biasing force of each constant load spring to R or an integral multiple of 2R, 3R, or 1/2 or 1/3, it is easy to reduce the total pressing force. Can be adjusted.
【0028】[0028]
【考案の効果】本考案を実施する事により、前記目的の
すべてが達成される。[Effects of the Invention] By implementing the present invention, all of the above objects are achieved.
【0029】すなわち、軽量コンパクトで、ストローク
位置に拘らずほぼ一定の圧力でコアビットを被穿孔物に
対して押圧する事が出来る、圧力調節の容易な自動送り
機構付き可搬穿孔装置が提供される。That is, there is provided a portable drilling device with an automatic feed mechanism which is lightweight and compact, and which can easily press the core bit against the material to be drilled with substantially constant pressure regardless of the stroke position, and which can easily adjust the pressure. .
【図1】実施例1の側面図(穿孔ヘッド上昇時)。FIG. 1 is a side view of a first embodiment (when a drilling head is raised).
【図2】実施例1の側面図(穿孔ヘッド下降時)。FIG. 2 is a side view of the first embodiment (when the drilling head is lowered).
【図3】図2のA−A矢視図。FIG. 3 is a view taken in the direction of arrows AA in FIG. 2;
【図4】片側の定荷重ばねを用いた実施例2の正面図。FIG. 4 is a front view of a second embodiment using a constant load spring on one side.
【図5】両側の定荷重ばねを用いた実施例3の正面図。FIG. 5 is a front view of a third embodiment using constant load springs on both sides.
【図6】裏側の定荷重ばねを用いた実施例4の側面図。FIG. 6 is a side view of a fourth embodiment using a constant load spring on the back side.
【図7】他の実施例5の側面図。FIG. 7 is a side view of another embodiment 5.
【図8】回転式定荷重ばねの斜視図。FIG. 8 is a perspective view of a rotary constant load spring.
【図9】定荷重ばねの応力−歪み特性図。FIG. 9 is a stress-strain characteristic diagram of a constant load spring.
【10】従来例の側面図。10 is a side view of a conventional example.
1 自動送り機構付き可搬穿孔装置 2 ガイド柱 3 取付台 4 ラック 5 ダンパ 6 スライドブロック 7 ピニオン軸 9 穿孔ヘッド 12 コアビット 15 鉤固定金具 20 定荷重ばね 21 定荷重ばねの伸長部 25 鉤 30 固定式定荷重ばね 100 被穿孔物 DESCRIPTION OF SYMBOLS 1 Portable drilling apparatus with an automatic feed mechanism 2 Guide pillar 3 Mounting stand 4 Rack 5 Damper 6 Slide block 7 Pinion shaft 9 Drilling head 12 Core bit 15 Hook fixing bracket 20 Constant load spring 21 Extension part of constant load spring 25 Hook 30 Fixed type Constant load spring 100 Drilled object
Claims (3)
孔ヘッドと、穿孔ヘッドを軸方向に駆動する自動送り機
構とを備える自動送り機構付き可搬穿孔装置において、
自動送り機構が、収縮付勢方向が穿孔方向と同一もしく
は反対方向になるように配置された複数箇の単位定荷重
ばねの組合せでなる組合せ定荷重ばねと、油圧ダンパと
を備える自動送り機構である事を特徴とする自動送り機
構付き可搬穿孔装置。1. A portable drilling device with an automatic feeding mechanism, comprising a guide, a punching head slidable along the guide, and an automatic feeding mechanism for driving the drilling head in the axial direction.
Automatic feed mechanism , the contraction bias direction may be the same as the drilling direction
Is the multiple unit constant loads arranged in opposite directions
A portable drilling device with an automatic feed mechanism, characterized in that it is an automatic feed mechanism including a combination constant load spring composed of a combination of springs and a hydraulic damper.
荷重ばねと反対方向に1箇の単位定荷重ばねの組合せ定
荷重ばねである請求項1に記載の自動送り機構付き可搬
穿孔装置。2. The portable unit with an automatic feed mechanism according to claim 1 , wherein the constant load spring is a combination constant load spring composed of two unit constant load springs in a drilling direction and one unit constant load spring in the opposite direction. Perforator.
ねである請求項2に記載の自動送り機構付き可搬穿孔装
置。3. The portable drilling device with an automatic feed mechanism according to claim 2 , wherein the constant load spring is a plurality of hooked constant load springs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993038247U JP2536018Y2 (en) | 1993-06-17 | 1993-06-17 | Portable drilling device with automatic feed mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993038247U JP2536018Y2 (en) | 1993-06-17 | 1993-06-17 | Portable drilling device with automatic feed mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH073912U JPH073912U (en) | 1995-01-20 |
JP2536018Y2 true JP2536018Y2 (en) | 1997-05-21 |
Family
ID=12519984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1993038247U Expired - Lifetime JP2536018Y2 (en) | 1993-06-17 | 1993-06-17 | Portable drilling device with automatic feed mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2536018Y2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2857616B2 (en) * | 1996-11-01 | 1999-02-17 | 株式会社コンセック | Core drill |
KR101635929B1 (en) * | 2016-03-14 | 2016-07-04 | 권득윤 | Apparatus for drilling hole in airfield lamp |
JP7051090B2 (en) * | 2018-03-22 | 2022-04-11 | 国立研究開発法人農業・食品産業技術総合研究機構 | Moisture content measuring device for the object to be measured, which consists of a constant load applying device and a water-containing / aerobic material equipped with the device. |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS536946A (en) * | 1976-07-07 | 1978-01-21 | Hitachi Heating Appliance Co Ltd | High frequency heater |
JPS5434036A (en) * | 1978-03-28 | 1979-03-13 | Yuasa Battery Co Ltd | Method of making catalist container in apparatus for recovering gas produced in storage battery |
-
1993
- 1993-06-17 JP JP1993038247U patent/JP2536018Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH073912U (en) | 1995-01-20 |
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