JPH0410348B2 - - Google Patents
Info
- Publication number
- JPH0410348B2 JPH0410348B2 JP59193341A JP19334184A JPH0410348B2 JP H0410348 B2 JPH0410348 B2 JP H0410348B2 JP 59193341 A JP59193341 A JP 59193341A JP 19334184 A JP19334184 A JP 19334184A JP H0410348 B2 JPH0410348 B2 JP H0410348B2
- Authority
- JP
- Japan
- Prior art keywords
- ball
- pitching arm
- arm
- biasing means
- torsion coil
- 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
- 230000000284 resting effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Toys (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
この発明は野球やテニスの打撃練習機に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] This invention relates to a batting practice machine for baseball and tennis.
従来、打撃練習機として第８図に示すものが提
案されている（特公昭44−20772号公報）。投球ア
ーム１００の先端にボール投出し部１０１が設け
られ、他端近傍にアーム支持軸１０２が、またア
ーム略中央に引掛け部１０３が配設され、アーム
支持軸１０２と引掛け部１０３との間がストツパ
部１０４とされている。これは、引掛ピン１０５
をレバー１０５で引張つて投球アーム１００を駆
動するものであるが、引掛け部１０３が投球アー
ム１００の略中央でアーム支持軸１０２より離れ
ているため、引掛け部１０３におけるアーム移動
量を多く要す。そのため、駆動部に大型のものが
必要で、全体が大型になつている。また、ストツ
パ部１０４がアーム支持軸１０２と引掛け部１０
３との間で、投球アーム１００の先端より離れた
位置にあるため、ストツパ部１０４が緩衝材に当
つて投球アーム１００を止めるときに、ストツパ
部１０４より先端方向の投球アーム部分が撓わ
み、投球アーム１００が変形することがある。そ
のため、ボールＭの投げ出し方向が安定しないと
いう問題があつた。
Conventionally, a batting practice machine shown in FIG. 8 has been proposed (Japanese Patent Publication No. 44-20772). A ball throwing part 101 is provided at the tip of the pitching arm 100, an arm support shaft 102 is provided near the other end, and a hook part 103 is provided approximately at the center of the arm. The space between them is a stopper portion 104. This is the hook pin 105
is pulled by a lever 105 to drive the pitching arm 100. However, since the hook portion 103 is located approximately at the center of the pitching arm 100 and is away from the arm support shaft 102, a large amount of arm movement is required at the hook portion 103. vinegar. Therefore, a large drive unit is required, making the entire device large. Further, the stopper part 104 is connected to the arm support shaft 102 and the hook part 10.
3 and is located away from the tip of the pitching arm 100, so when the stopper part 104 hits the cushioning material and stops the pitching arm 100, the part of the pitching arm in the direction of the tip from the stopper part 104 flexes. , the pitching arm 100 may be deformed. Therefore, there was a problem that the direction in which the ball M was thrown was not stable.
この発明は、駆動部を小型化でき、かつボール
の投げ出し方向を安定させることのできる打撃練
習機を提供することを目的とする。
SUMMARY OF THE INVENTION An object of the present invention is to provide a batting practice machine whose drive unit can be made smaller and which can stabilize the direction in which the ball is thrown.
この発明の打撃練習機は、先端にボール載せ部
を有し基端にねじりコイルばね部を一体に形成し
た一対の平行な弾性線材の脚片からなり前記ねじ
りコイルばね部を軸心として回動可能に支持され
た投球アームを設け、前記ねじりコイルばね部近
傍をばね付勢手段で連結するとともに、このばね
付勢手段と前記ボール載せ部との間に前記一対の
脚片を連結するようにストツパ部材を設け、前記
ばね付勢手段を前記投球アームの弾性に抗する方
向に移動せしめる駆動装置を設けたものである。
The batting practice machine of the present invention is comprised of a pair of parallel elastic wire legs integrally formed with a ball resting part at the tip and a torsion coil spring part at the base end, and rotates about the torsion coil spring part as an axis. A pitching arm is provided that is supported such that the torsion coil spring portion is connected by a spring biasing means, and the pair of leg pieces are connected between the spring biasing means and the ball resting portion. A stopper member is provided, and a drive device is provided for moving the spring biasing means in a direction that opposes the elasticity of the pitching arm.
このように、投球アームのばね支持部と、ばね
付勢手段と、ストツパ部材と、ボール載せ部とを
この順に配置したので、ばね付勢手段の小さな移
動量でボール載せ部の移動量が十分に得られ、小
型ながら大きな角速度を確保することができる。
また、ストツパ部材がばね付勢手段とボール載せ
部との間にあるため、ストツパ部材がこれに対向
するダンパ等に当つたときの投球アームのたわみ
による変形を小さく抑えることができる。そのた
め、投出し方向が安定する。 In this way, since the spring support portion of the pitching arm, the spring biasing means, the stopper member, and the ball resting portion are arranged in this order, the ball resting portion can be moved sufficiently with a small amount of movement of the spring biasing means. Although it is small, it is possible to secure a large angular velocity.
Further, since the stopper member is located between the spring biasing means and the ball resting portion, deformation due to deflection of the pitching arm when the stopper member hits a damper or the like facing the stopper member can be suppressed to a small level. Therefore, the throwing direction is stabilized.
実施例
この発明の一実施例を第１図ないし第６図に示
す。第１図において、１は本体ケースであり、中
央で左本体カバー１Ａと右本体カバー１Ｂとに分
割され、かつ前面カバー１Ｃが設けられている。
本体ケース１は前面にボール投げ出し口２を有
し、側面にボール供給部１１が付設されている。
これにパイプ材で形成された第１のボールストツ
カ９が接続され、第１のボールストツカ９に第２
のボールストツカ１０が連接されている。１２は
脚、１３は送りカバーである。Embodiment An embodiment of the present invention is shown in FIGS. 1 to 6. In FIG. 1, 1 is a main body case, which is divided at the center into a left main body cover 1A and a right main body cover 1B, and is provided with a front cover 1C.
The main body case 1 has a ball throwing opening 2 on the front surface, and a ball supply section 11 is attached on the side surface.
A first ball stocker 9 made of pipe material is connected to this, and a second ball stocker 9 is connected to the first ball stocker 9.
A ball stocker 10 is connected to the ball stocker 10. 12 is a leg, and 13 is a feed cover.
内部構造の概略を説明する。本体ケース１の側
面にボール送り込み口３（第３図）を有し、これ
から送り込まれたボールＭを受ける一対の平行な
ガイドレール４が設けられている。また、ボール
投球アーム６と、ボールセツトアーム７と、これ
らの駆動機構部とがフレーム８とともに収納され
ている。 An outline of the internal structure will be explained. A ball feeding port 3 (FIG. 3) is provided on the side surface of the main body case 1, and a pair of parallel guide rails 4 are provided to receive the balls M fed therefrom. Further, a ball pitching arm 6, a ball setting arm 7, and their drive mechanism are housed together with a frame 8.
投球アーム６およびその駆動手段を説明する。
投球アーム６は線ばねからなるものであり、カム
１４の回転により撓められ、カム１４から外れる
ことによりその撓みの弾発力で先端が回動し、ボ
ールＭを投げ出す。投球アーム６は、詳しくは、
２本の平行な脚片６Ａ，６Ｂ（第６図）からなり、
各脚片６Ａ，６Ｂの基端に投げ出し用ばねとなる
ねじりコイルばね部１５が一体に延設されてい
る。各脚片６Ａ，６Ｂの先端は回転方向に傾斜さ
せかつ連続させてあり、ボールＭを両脚片６Ａ，
６Ｂの平行部分と前記連続部分との３点で保持可
能なボール載せ部６Ｃとなつている。投球アーム
６の基端近傍にはカムフオロア１６を回転自在に
装着したカムフオロア軸１７がダンパストツパ８
０を介して固定してある。カムフオロア１６は投
球アーム６のばね付勢手段となるものである。ダ
ンパストツパ８０は、投球アーム６に対して、溶
接およびかしめにより固定されている。８０ａは
その溶接箇所である。ダンパストツパ８０は一対
の脚片でできており、カムフオロア１６を取付け
た端部と反対の端部が、互いに連結されてストツ
パ部材８０ｂを形成している。ストツパ部材８０
ｂは、投球アーム６がボールＭを投げ出すために
加速されつつ移動するときに、ダンパ３１に衝突
して回転を止める役目をする。ストツパ部材８０
ｂはカムフオロア１６とボール載せ部６Ｃとの間
に位置している。ダンパ３１のストツパ部材８０
ｂと衝突する面は、第６図のように凹凸面として
あり、衝突時の衝撃音を小さくする。ダンパ３１
は、ゴム系の材料からなるが、必要に応じてぬす
み穴３１ａ（第３図）を設けることにより、より
一層衝撃をやわらげて、衝撃音を小さくすること
ができる。投球アーム６は、パイプ状のアーム支
軸１８に、ねじりコイルばね部１５が回転自在に
外嵌して支持されており、ねじりコイルばね部１
５の先端に設けた係合部１５ａが、フレーム８の
ばねストツパ２０（第３図）に係合している。ア
ーム支持軸１８はフレーム８に取付けてある。カ
ムフオロア１６はカム１４に転接するものであ
る。 The pitching arm 6 and its driving means will be explained.
The pitching arm 6 is made of a wire spring, and is deflected by the rotation of the cam 14, and when it comes off the cam 14, its tip rotates by the elastic force of the deflection, and throws out the ball M. For details on the pitching arm 6, see
It consists of two parallel leg pieces 6A and 6B (Fig. 6),
A torsion coil spring portion 15 serving as a throwing spring is integrally extended at the base end of each leg piece 6A, 6B. The tips of each leg piece 6A, 6B are inclined and continuous in the direction of rotation, and the ball M is connected to both leg pieces 6A, 6B.
The ball mounting portion 6C can be held at three points: the parallel portion of the ball 6B and the continuous portion. A cam follower shaft 17 on which a cam follower 16 is rotatably mounted near the base end of the pitching arm 6 is connected to a damper stopper 8.
It is fixed via 0. The cam follower 16 serves as a spring biasing means for the pitching arm 6. The damper stopper 80 is fixed to the pitching arm 6 by welding and caulking. 80a is the welding location. The damper stopper 80 is made up of a pair of legs, and the ends opposite to the end to which the cam follower 16 is attached are connected to each other to form a stopper member 80b. Stopper member 80
b serves to stop the rotation by colliding with the damper 31 when the pitching arm 6 moves while being accelerated to throw the ball M. Stopper member 80
b is located between the cam follower 16 and the ball mounting portion 6C. Stopper member 80 of damper 31
The surface that collides with b is an uneven surface, as shown in FIG. 6, to reduce the impact noise at the time of collision. Damper 31
is made of a rubber-based material, but by providing a through hole 31a (FIG. 3) as necessary, it is possible to further soften the impact and reduce the impact noise. The pitching arm 6 is supported by a torsion coil spring part 15 rotatably fitted onto a pipe-shaped arm support shaft 18.
An engaging portion 15a provided at the tip of the frame 8 engages with a spring stopper 20 (FIG. 3) of the frame 8. The arm support shaft 18 is attached to the frame 8. The cam follower 16 is in rolling contact with the cam 14.
カム１４は、回転方向に漸次径が大きくなり、
途中で不連続的に小径となつている。カム１４の
駆動は、ボールセツトアーム７とともにモータに
より行なわれる。この駆動伝達系を説明する。フ
レーム８にモータと減速機が一体となつたギヤー
ドモード２１（第２図）を固定し、ギヤードモー
ド２１の出力軸２１ａに、小ギヤ２３を圧入固定
する。さらに、カム軸２４に、カム１４およびボ
ールセツトアーム７の作動用の突起部２５を有す
る大ギヤ２６を、印ろう部でカム１４と大ギヤ２
６を連結して、カム軸２４に対して回転自在に嵌
合する。このように、カム軸２４を設置すること
により、大ギヤ２６は小ギヤ２３と噛み合う。な
お、ボールセツトアーム７は、ボール供給部１１
（第１図）から、ボールＭを１個ずつ送り込むた
めのものである。 The diameter of the cam 14 gradually increases in the rotational direction,
There is a discontinuous small path along the way. The cam 14 is driven together with the ball set arm 7 by a motor. This drive transmission system will be explained. A geared mode 21 (FIG. 2) in which a motor and a speed reducer are integrated is fixed to the frame 8, and a small gear 23 is press-fitted and fixed to the output shaft 21a of the geared mode 21. Further, a large gear 26 having a protrusion 25 for operating the cam 14 and the ball set arm 7 is attached to the cam shaft 24 at a beveled portion.
6 are connected and rotatably fitted to the camshaft 24. By installing the camshaft 24 in this way, the large gear 26 meshes with the small gear 23. Note that the ball set arm 7 is connected to the ball supply section 11.
(Fig. 1), this is for feeding the balls M one by one.
動 作
第３図のように、ボールＭは、ボール送り込み
口３から内部に送られると、投球アーム６の先端
のボール載せ部６Ｃで保持される。カム１４は、
第３図の矢印方向に回転し、カムフオロア１６を
介して投球アーム６を撓わませる。第４図は、ボ
ールＭが投げ出される直前の投球アーム６の状態
を示す。カムフオロア１６がカム１４の最大半径
部から外れると、投球アーム６のねじりばね部１
５に蓄えたエネルギにより、投球アーム６はボー
ルを３点保持したままはじき出される。ボールを
保持したままに移動した投球アーム６は、ダンパ
３１に接触すると急激に運動を停止し、ボールの
みがねじりコイルばね部１５のエネルギで加速さ
れた初速をもつて投げ出される。Operation As shown in FIG. 3, when the ball M is sent inside from the ball feed port 3, it is held by the ball rest 6C at the tip of the pitching arm 6. The cam 14 is
The pitching arm 6 is rotated in the direction of the arrow in FIG. 3 to flex the pitching arm 6 via the cam follower 16. FIG. 4 shows the state of the pitching arm 6 just before the ball M is thrown out. When the cam follower 16 comes off the maximum radius of the cam 14, the torsion spring portion 1 of the pitching arm 6
Due to the energy stored in ball 5, pitching arm 6 is ejected while holding the ball at three points. The pitching arm 6, which has moved while holding the ball, suddenly stops moving when it comes into contact with the damper 31, and only the ball is thrown out with an initial velocity accelerated by the energy of the torsion coil spring section 15.
このように動作するが、上記構成のため次の利
点が得られる。すなわち、投球アーム６の回動中
心となるアーム支軸１８より、ねじりコイルばね
部１５による支持部→カムフオロア１６→ストツ
パ部材８０ｂ→ボール載せ部６Ｃの順に配置して
あるため、カムフオロア１６の小さな移動量x1
（第５図）に対し、ボール載せ部６Ｃの大きな移
動量x2（x2＞x1）を確保でき、小型ながら、大き
な角速度を確保することが可能となる。また、ダ
ンパストツパ８０の一部で構成するストツパ部材
８０ｂを、ボール載せ部６Ｃとカムフオロア１６
との間においているため、ダンパ３１に当つたと
きの投球アーム６の撓わみによる変形を最小限に
抑えることができ、投げ出し方向が安定する。 Although it operates in this way, the following advantages can be obtained due to the above configuration. That is, since the arm support shaft 18, which is the center of rotation of the pitching arm 6, is arranged in the order of the support section by the torsion coil spring section 15, the cam follower 16, the stopper member 80b, and the ball mounting section 6C, small movements of the cam follower 16 are possible. quantity x 1
(FIG. 5), it is possible to ensure a large amount of movement x 2 (x 2 >x 1 ) of the ball mounting portion 6C, and it is possible to ensure a large angular velocity despite the small size. In addition, the stopper member 80b, which is a part of the damper stopper 80, is connected to the ball mounting portion 6C and the cam follower 16.
Therefore, deformation due to deflection of the pitching arm 6 when it hits the damper 31 can be minimized, and the pitching direction is stabilized.
第７図は第２の実施例を示す。この例は、板金
等の鋼材よりなるストツパ部材８０b′で、投球ア
ーム６の一対の脚片６Ａ，６Ｂを連結し、カムフ
オロア１６の支軸１７は、ストツパ部材１８b′と
別体の取付金具８２で投球アーム６に取付けたも
のである。ストツパ部材８０b′は、かしめ固定あ
るいは溶接により脚片６Ａ，６Ｂに固定するが、
カムフオロア１６とボール載せ部６Ｃとの間に配
置する。 FIG. 7 shows a second embodiment. In this example, a stopper member 80b' made of steel such as sheet metal connects the pair of leg pieces 6A and 6B of the pitching arm 6, and the support shaft 17 of the cam follower 16 is connected to the stopper member 18b' and a separate mounting bracket 82. This is attached to the pitching arm 6. The stopper member 80b' is fixed to the leg pieces 6A, 6B by caulking or welding.
It is arranged between the cam follower 16 and the ball rest 6C.
この発明は、投球アームの回動軸心となるねじ
りコイルばね部、ばね付勢手段、ストツパ部材、
ボール載せ部と順に投球アームに配置してあるた
め、小型化が図れるとともに、ばね付勢手段の小
さな移動量でボール載せ部の移動量が十分に得ら
れ、小型ながら大きな角速度を確保することがで
きる。また、ストツパ部材がばね付勢手段とボー
ル載せ部との間にあるため、ストツパ部材がこれ
に対向するダンパ等に当たつたときの投球アーム
の撓みによる変形を小さく抑えることができ、投
げ出し方向が安定する。
The present invention provides a torsion coil spring portion serving as a rotational axis of a pitching arm, a spring biasing means, a stopper member,
Since the ball rest and the ball rest are arranged in order on the pitching arm, it is possible to achieve miniaturization, and a sufficient amount of movement of the ball rest can be obtained with a small amount of movement of the spring biasing means, making it possible to secure a large angular velocity despite the small size. can. In addition, since the stopper member is located between the spring biasing means and the ball resting part, deformation due to deflection of the pitching arm when the stopper member hits a damper, etc. opposite thereto can be suppressed to a minimum, and becomes stable.
また、弾性線材の脚片とねじりコイルばね部を
一体化し、かつねじりコイルばね部を投球アーム
の回動軸心としたので、駆動力の軽減に伴う投球
アーム駆動源の小型化、部品点数の削減、構造簡
単、軽量化、運搬容易などの効果が生じる。 In addition, the elastic wire leg piece and the torsion coil spring part are integrated, and the torsion coil spring part is used as the rotation axis of the pitching arm, which reduces the size of the pitching arm drive source and reduces the number of parts due to the reduction in driving force. Effects include reduction in size, simple structure, weight reduction, and ease of transportation.
第１図はこの発明の一実施例の外観斜視図、第
２図はその破断正面図、第３図は同じくそのボー
ル送り込み時の状態の破断側面図、第４図は同じ
くそのボール投出し直前の状態の破断側面図、第
５図は同じくそのボール投出し直後の状態の破断
側面図、第６図は同じくその投球アームの斜視
図、第７図は他の実施例の投球アームの斜視図、
第８図は従来例の概略側面図である。
１……本体ケース、２……ボール投げ出し口、
４……ガイドレール、６……投球アーム、６Ａ，
６Ｂ……脚片、６Ｃ……ボール載せ部、７……ボ
ールセツトアーム、８……フレーム、１１……ボ
ール供給部、１４……カム（駆動装置）、１５…
…ねじりコイルばね部、１６……カムフオロア
（ばね付勢手段）、１８……アーム支軸、２１……
ギヤードモータ、３１……ダンパ（ストツパ）、
８０……ダンパストツパ、８０ｂ，８０b′……ス
トツパ部材。
FIG. 1 is an external perspective view of an embodiment of the present invention, FIG. 2 is a cutaway front view thereof, FIG. 3 is a cutaway side view of the state when the ball is being fed, and FIG. FIG. 5 is a cutaway side view of the pitching arm immediately after the ball is thrown, FIG. 6 is a perspective view of the pitching arm, and FIG. 7 is a perspective view of the pitching arm of another embodiment. ,
FIG. 8 is a schematic side view of a conventional example. 1... Main body case, 2... Ball throwing opening,
4...Guide rail, 6...Pitching arm, 6A,
6B... Leg piece, 6C... Ball mounting section, 7... Ball set arm, 8... Frame, 11... Ball supply section, 14... Cam (drive device), 15...
...Torsion coil spring part, 16...Cam follower (spring biasing means), 18...Arm support shaft, 21...
Geared motor, 31...damper (stopper),
80... Damper stopper, 80b, 80b'... Stopper member.
Claims (1)
ルばね部を一体に形成した一対の平行な弾性線材
の脚片からなり前記ねじりコイルばね部を軸心と
して回動可能に支持された投球アームを設け、前
記ねじりコイルばね部近傍をばね付勢手段で連結
するとともに、このばね付勢手段と前記ボール載
せ部との間に前記一対の脚片を連結するようにス
トツパ部材を設け、前記ばね付勢手段を前記投球
アームの弾性に抗する方向に移動せしめる駆動装
置を設けた打撃練習機。 ２ 前記ばね付勢手段がカムフオロアであつて、
前記駆動装置が回転駆動するカムである特許請求
の範囲第１項記載の打撃練習機。[Scope of Claims] 1. Consisting of a pair of parallel elastic wire legs having a ball resting portion at the tip and integrally formed with a torsion coil spring portion at the base end, it is rotatable about the torsion coil spring portion as an axis. A pitching arm supported by the torsion coil spring section is provided, and the vicinity of the torsion coil spring section is connected by a spring biasing means, and a stopper is provided so as to connect the pair of leg pieces between the spring biasing means and the ball resting section. A batting practice machine comprising: a member; and a driving device for moving the spring biasing means in a direction against the elasticity of the pitching arm. 2. The spring biasing means is a cam follower,
The batting practice machine according to claim 1, wherein the drive device is a rotationally driven cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19334184A JPS6171077A (en) | 1984-09-14 | 1984-09-14 | Hitting exerciser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19334184A JPS6171077A (en) | 1984-09-14 | 1984-09-14 | Hitting exerciser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6171077A JPS6171077A (en) | 1986-04-11 |
| JPH0410348B2 true JPH0410348B2 (en) | 1992-02-25 |
Family
ID=16306279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19334184A Granted JPS6171077A (en) | 1984-09-14 | 1984-09-14 | Hitting exerciser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6171077A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223267B2 (en) * | 1974-12-19 | 1977-06-23 | ||
| JPS5858079B2 (en) * | 1981-12-11 | 1983-12-23 | 工業技術院長 | Cellulose saccharification method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54299Y2 (en) * | 1975-08-06 | 1979-01-09 | ||
| JPS5858079U (en) * | 1981-10-15 | 1983-04-19 | 鈴木 道男 | Launching device for gateball practice machine |
-
1984
- 1984-09-14 JP JP19334184A patent/JPS6171077A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223267B2 (en) * | 1974-12-19 | 1977-06-23 | ||
| JPS5858079B2 (en) * | 1981-12-11 | 1983-12-23 | 工業技術院長 | Cellulose saccharification method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6171077A (en) | 1986-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |