JPH0335381Y2 - - Google Patents
Info
- Publication number
- JPH0335381Y2 JPH0335381Y2 JP1987009642U JP964287U JPH0335381Y2 JP H0335381 Y2 JPH0335381 Y2 JP H0335381Y2 JP 1987009642 U JP1987009642 U JP 1987009642U JP 964287 U JP964287 U JP 964287U JP H0335381 Y2 JPH0335381 Y2 JP H0335381Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotating
- receiving plate
- drum
- blades
- rotor
- 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
Links
- 238000005498 polishing Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 39
- 239000004575 stone Substances 0.000 description 17
- 239000004576 sand Substances 0.000 description 12
- 238000010008 shearing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
- Crushing And Pulverization Processes (AREA)
- Disintegrating Or Milling (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、山から切り出した岩砕石・砕砂や河
川砂利の砕石あるいはスラグ(鉱滓)等を破砕及
び研磨して鋭角部を除去するとともに、付着する
泥土類を除去して良質の砂や砂利を得るための破
砕研磨装置に関するものである。[Detailed description of the invention] [Industrial application field] This invention crushes and polishes crushed rock, crushed sand, crushed river gravel, etc. cut from mountains, and removes sharp edges by crushing and polishing slag (slag). This invention relates to a crushing and polishing device for removing adhering mud to obtain high-quality sand and gravel.
〔従来の技術〕
従来技術としては、例えば特公昭47−3420号公
報記載のものが知られている。これは、対向端壁
部を有し水平方向に配置された定速回転ドラム
と、このドラムの一端部中に略軸線方向に向かつ
て素材を投入する素材投入装置及び前記ドラムか
ら粉砕された材を取出す装置と、前記ドラムの回
転軸と略同軸の軸を中心に回転されかつ耐久性の
ある弾性素材によつて形成された外部周面部を持
つた部材を備え、前記ドラム中に軸支され高速回
転される回転衝動部材と、この衝動部材の外周に
おいて前記ドラムの内部周縁を取囲んで離間さ
れ、前記ドラムの下部周縁部に投入された素材に
係合して上昇させかつ前記ドラムの上部周縁部に
向かつて素材を上昇させ、しかる後上昇された素
材を前記衝動部材上に重力によつて落下させる素
材上昇装置とを備える粉砕機であつて、回転ドラ
ムと回転衝動部材とが略同心円の関係にあり、し
かも両者が同一方向に回転するものである。[Prior Art] As a prior art, for example, the one described in Japanese Patent Publication No. 47-3420 is known. This consists of a constant speed rotating drum having opposite end walls and arranged horizontally, a material feeding device for feeding material into one end of the drum in a substantially axial direction, and a material being crushed from the drum. a member having an outer circumferential surface portion formed of a durable elastic material and rotated around an axis substantially coaxial with the rotational axis of the drum, the member being pivotally supported in the drum; a rotary impulse member that is rotated at high speed; and a rotary impulse member that is spaced apart around the inner circumference of the drum at the outer periphery of the impulse member, and that engages and raises the material introduced at the lower circumference of the drum and raises the upper part of the drum. A crusher comprising a material lifting device that raises the material toward the peripheral edge and then drops the raised material onto the impulse member by gravity, the rotating drum and the rotational impulse member being substantially concentric. , and both rotate in the same direction.
その他の従来例としては、特開昭50−86753号
公報に記載の砕石研磨装置が知られている。これ
は、砕石に付着している土塊や砕石の角部を砕石
と他の砕石の研磨によつて除去するためのもので
あり、この従来装置の構成は、円筒状の回転ドラ
ムの内部に、この回転ドラムと反対方向に回転す
る衝撃刃付きロータを配設したものであり、しか
も衝撃刃付きロータの中心軸線は回転ドラムの中
心軸線と同軸に配設したものである。そして、研
磨される砕石はロータの衝撃刃で掻き上げられ、
このロータと反対方向に回転しているドラムの上
部内壁に衝突させられ、ドラム内を疲翔し合う砕
石相互の接触摩擦によつて砕石の角部または砕石
に付着している土塊が除去される、とされてい
る。 As another conventional example, a crushing stone polishing apparatus described in Japanese Patent Application Laid-Open No. 50-86753 is known. This device is used to remove soil clods and corners of crushed stones that are attached to crushed stones by polishing the crushed stones and other crushed stones. A rotor with impact blades is arranged to rotate in the opposite direction to the rotating drum, and the center axis of the rotor with impact blades is arranged coaxially with the center axis of the rotating drum. The crushed stone to be polished is then scraped up by the impact blades of the rotor,
The crushed stones collide with the upper inner wall of the drum, which is rotating in the opposite direction to the rotor, and the contact friction between the crushed stones as they fly through the drum removes the corners of the crushed stones or the clods that are attached to the crushed stones. , is said to be.
特公昭47−3420号公報記載のものは、素材を小
さな粒子に砕くには良いが、コンクリート用の硬
い砕石を素材とする場合には、ゴムタイヤの如き
回転衝撃部材では砕石の角を除去することは到底
不可能であり、角のとれた砂や砂利を得ることが
できないものであつた。
The method described in Japanese Patent Publication No. 47-3420 is good for crushing materials into small particles, but when the material is hard crushed stone for concrete, it is necessary to remove the corners of the crushed stone using a rotating impact member such as a rubber tire. It was impossible to obtain sand or gravel with sharp edges.
さらに、特開昭50−86753号公報記載のものは、
砕石を回転ドラム内で飛翔させるので、ドラムの
上部内壁に衝突したり砕石同士が激しくぶつかり
合うために、角部や土塊を除去するよりも前に砕
石そのものが砕かれ、分割されてしまい余計に角
ばつたものとなり、さらにこの分割された砕石の
角を除去しようとするには多大の時間を要するも
のであつた。 Furthermore, what is described in JP-A No. 50-86753 is
Since the crushed stones are flown in a rotating drum, they collide with the upper inner wall of the drum or collide violently with each other, causing the crushed stones themselves to be crushed and split before corners and clods are removed. The stones had broken edges, and it took a great deal of time to remove the broken edges.
そこで、この考案は、角部や土塊を効果的に除
去することができ、装置全体も大型化せずにコト
パクトに設計することができる破砕研磨装置を提
供することを目的とするものである。 Therefore, the object of this invention is to provide a crushing and polishing device that can effectively remove corners and clods and can be designed compactly without increasing the size of the device as a whole.
上述の目的を達成するため、この考案は、略中
空円筒状のドラムの中心に単独で回転する回転ロ
ータを設け、ドラム内に一段又は二段以上の受板
を回転ロータの回転により回転しないように取付
け、回転ロータに各受板から所定間隔あけて上方
に位置させて回転ロータの回転により回転するよ
うに放射線状に複数の回転羽根を受板と略平行に
なるように取付け、半径方向へ放射線状に配置し
た多数の棒材と各棒材間に形成された隙間とから
構成された受板の各棒材及び回転羽根を中心から
外方へ向けて徐々に高くなるように構成し、ドラ
ム上方から供給されてきた素材を回転ロータの回
転により回転させられる回転羽根とこの回転羽根
の下方に位置する受板とで主として破砕・研磨す
るように構成したものである。
In order to achieve the above object, this invention provides a rotating rotor that rotates independently at the center of a substantially hollow cylindrical drum, and one or more stages of receiving plates inside the drum so that they do not rotate due to the rotation of the rotating rotor. The blades are mounted on the rotating rotor at a predetermined distance above each receiving plate, and a plurality of rotating blades are installed in a radial direction so as to be approximately parallel to the receiving plate so that they rotate as the rotating rotor rotates, and in the radial direction. Each bar of the receiving plate, which is composed of a large number of radially arranged bars and gaps formed between each bar, and the rotary blades are configured to gradually increase in height from the center toward the outside, The material supplied from above the drum is mainly crushed and polished using rotating blades rotated by the rotation of a rotating rotor and a receiving plate located below the rotating blades.
ドラム上方から素材、例えば砕砂を投入し、回
転ロータを回転させることにより、回転羽根を回
転させると、受板上に止まつた砕砂は回転羽根と
受板を構成する棒材とで主として破砕・研磨さ
れ、砕砂の角がとれ受板の隙間から良質の砂とな
つて落下する。この際、回転羽根の回転により素
材は回転の中心から外方へ逃げようとするが、受
板を構成する各棒材は中心から外方へ向けて徐々
に高くなるように構成してあるために外方へ逃げ
るのを重力が引き戻し投入された素材が均一に研
磨されることとなる。また、受板上の砕砂は回転
羽根との間に挟まれて剪断・圧縮されるとともに
回転羽根の回転により受板上を流動させられ、素
材同士のぶつかり合いによる破砕も行われ、所定
の粒径以下に破砕・研磨されたものが受板の隙間
から落下し、落下しない程度の大きさのものは次
の回転羽根で剪断・圧縮され、次々に回転羽根と
棒材との間で破砕・研磨されてゆき、最後は受板
の隙間から落下して粒径のそろつた砂となる。
When material, such as crushed sand, is input from above the drum and the rotating rotor is rotated to rotate the rotating blades, the crushed sand that remains on the receiving plate is mainly crushed and polished by the rotating blades and the rods that make up the receiving plate. As a result, the edges of the crushed sand come off and fall as high-quality sand through the gaps in the receiving plate. At this time, the material tries to escape outward from the center of rotation due to the rotation of the rotary blade, but each bar that makes up the receiving plate is constructed so that it gradually increases in height from the center outward. Gravity pulls back the material that escapes outward, and the material is polished uniformly. In addition, the crushed sand on the receiving plate is sandwiched between the rotating blades and is sheared and compressed, and the rotation of the rotating blades causes it to flow on the receiving plate, and the materials are crushed by colliding with each other, resulting in predetermined grain size. Items that have been crushed and polished to smaller diameters fall through the gap in the receiving plate, and items that are small enough to not fall are sheared and compressed by the next rotating blade, and are crushed and crushed one after another between the rotating blade and the bar. As the sand is polished, it eventually falls through the gaps between the receiving plates and becomes sand with a uniform grain size.
以下にこの考案の好適な実施例を図面を参照に
して説明する。
Preferred embodiments of this invention will be described below with reference to the drawings.
第1図において略中空円筒状のドラム1内に着
脱可能に上下方向に複数段に亘つて受板2を取付
けてある。ドラム1及び受板2の中心には単独で
回転する回転ロータ3を設け、この回転ロータ3
に受板2と共働して砕砂や砕石等の素材を研磨す
るための回転羽根4を複数取付けてある。ドラム
1の上端開口部にはホツパー5を取付け、このホ
ツパー5から砕砂や砕石等の素材を投入する。ま
た、ドラム1はフレーム6に取付けてある。回転
ロータ3は、回転軸7に取付けてあり、この回転
軸7の基端には従動車8を固着してあり、モータ
9の出力軸10に固着した駆動車11とベルト1
2で連結してある。したがつて、モータ9を作動
させ出力軸10並びに駆動車11を回転させるこ
とにより従動車8を回転させ、従動車8の回転に
より回転軸7を回転させ、回転軸7の回転は回転
ロータ3に伝達され、回転ロータ3の回転により
回転羽根4が回転することとなる。回転羽根4の
取付けは、回転羽根3に固着したブラケツト13
を介して行われ、回転羽根4が摩耗したときには
ブラケツト13から取り外して新しいものに取り
替えることもできる。 In FIG. 1, receiving plates 2 are removably attached to a drum 1 having a substantially hollow cylindrical shape in a plurality of stages in the vertical direction. A rotating rotor 3 that rotates independently is provided at the center of the drum 1 and the receiving plate 2.
A plurality of rotating blades 4 are attached to the plate 2 to work together with the receiving plate 2 to polish materials such as crushed sand and crushed stone. A hopper 5 is attached to the opening at the upper end of the drum 1, and materials such as crushed sand and crushed stones are fed through the hopper 5. Further, the drum 1 is attached to a frame 6. The rotating rotor 3 is attached to a rotating shaft 7, a driven wheel 8 is fixed to the base end of the rotating shaft 7, a driving wheel 11 fixed to an output shaft 10 of a motor 9, and a belt 1.
It is connected by 2. Therefore, by operating the motor 9 and rotating the output shaft 10 and the driving wheel 11, the driven wheel 8 is rotated, and the rotation of the driven wheel 8 rotates the rotating shaft 7. The rotation of the rotating rotor 3 causes the rotating blades 4 to rotate. The rotating blade 4 is installed using a bracket 13 fixed to the rotating blade 3.
When the rotating blade 4 becomes worn, it can be removed from the bracket 13 and replaced with a new one.
受板2は、第2図及び第3図に示すように、半
径方向へ放射線状に配置した多数の棒材21と各
棒材21の間に形成された隙間21Aを有し、平
面図並びに底面図において全体がドーナツ形状に
形成されたものである。この実施例では、受板2
をドラム1内へ取付けるために、全体を2分割し
た半円形状のものを2枚使用して一つの受板2を
構成してある。勿論、3分割以上に受板2を分割
することも差支えないことは勿論である。多数の
棒材21は複数のリング板22〜25に各両端部
を溶接等の手段により固着してある。また、半径
方向へ放射線状に配置した多数の棒材21は中心
から外方へ向けて徐々に高くなるように構成し、
受板2の全体が切頭円錐台形状を逆さにした形状
になつている。なお、棒材21と棒材21との間
に形成される隙間21Aは研磨すべき素材に応じ
て異ならしめる。さらにまた、上段に設置される
受板2では隙間21Aを大きくし、下段に行くに
したがつてこの隙間21Aを狭いものに構成する
こともできる。 As shown in FIGS. 2 and 3, the receiving plate 2 has a large number of bars 21 arranged radially in the radial direction and a gap 21A formed between each bar 21. In the bottom view, the entire structure is formed into a donut shape. In this embodiment, the receiving plate 2
In order to install this into the drum 1, one receiving plate 2 is constructed by using two semicircular pieces that are divided into two parts. Of course, the receiving plate 2 may be divided into three or more parts. A large number of rods 21 are fixed at both ends to a plurality of ring plates 22 to 25 by means such as welding. In addition, a large number of rods 21 arranged radially in the radial direction are configured to gradually become higher from the center toward the outside,
The entire receiving plate 2 has an inverted truncated conical shape. Note that the gap 21A formed between the bars 21 is made different depending on the material to be polished. Furthermore, it is also possible to make the gap 21A larger in the receiving plate 2 installed at the upper level, and to narrow the gap 21A toward the lower level.
前記回転羽根4は、第4図及び第5図に示すよ
うにチヤンネル上の鋼材を用い、その先端側を回
転方向とは反対方向に傾斜するように若干折り曲
げて傾斜部41を形成したものを用いる。この回
転羽根4は受板2の傾斜面に沿つて外方に向かう
に従つて徐々に高くなるように形成してある。回
転羽根4は、例えばブラケツト13に6個等間隔
で溶接・ボルト止め等の手段により固着してあ
る。さらに、この回転羽根を構成するチヤンネル
状部材40に刃42を取付けて構成してもよい
(第5図参照)。なお、傾斜部41を設けずに真つ
直ぐに形成し、左右何れの方向にも回転できるよ
うに構成することもできる。さらには、チヤンネ
ル状ではなく断面四角形に形成してもよい。なお
また、刃42をチヤンネル状に形成しても差支え
ない。ホツパー5から投入されてきた素材は、第
5図に示すように受板2と回転羽根4との間、即
ち第5図中符号100で示す箇所で主として破
砕・研磨され、第5図矢印Aで示す方向に隙間2
1Aから落下される。 As shown in FIGS. 4 and 5, the rotary blade 4 is made of a steel material on a channel, and its tip side is slightly bent in a direction opposite to the direction of rotation to form an inclined part 41. use The rotating blades 4 are formed so as to gradually become higher toward the outside along the inclined surface of the receiving plate 2. For example, six rotating blades 4 are fixed to the bracket 13 at equal intervals by means such as welding or bolting. Furthermore, a blade 42 may be attached to a channel-shaped member 40 constituting the rotating blade (see FIG. 5). In addition, it is also possible to form it straight without providing the inclined part 41 and to be able to rotate in either the left or right direction. Furthermore, it may be formed not in a channel shape but in a rectangular cross section. Furthermore, the blade 42 may be formed into a channel shape. The material fed from the hopper 5 is mainly crushed and polished between the receiving plate 2 and the rotary blade 4, that is, at the location indicated by the reference numeral 100 in FIG. Gap 2 in the direction shown by
It is dropped from 1A.
第6図に示す実施例では刃42の下面を傾斜さ
せ、回転羽根4を受板2との間隙を回転方向から
遠ざかるに従つて徐々に狭く形成してもよい。符
号100で示す処理スペースが狭いほど素材に対
する圧縮力は強くなる。このように構成すると素
材に対する回転羽根4と受板2とによる噛み込み
がよくなり破砕効率も向上する。 In the embodiment shown in FIG. 6, the lower surface of the blade 42 may be inclined, and the gap between the rotary blade 4 and the receiving plate 2 may be formed to become gradually narrower as it moves away from the rotation direction. The narrower the processing space indicated by reference numeral 100, the stronger the compressive force on the material. With this configuration, the rotating blades 4 and the receiving plate 2 can better engage the material, and the crushing efficiency can also be improved.
以上説明したように、この考案によれば、受板
が中心から外方に向かつて徐々に高くなるように
構成してあり、回転羽根もこの受板に沿つて外方
にいくにしたがつて徐々に高くなるように構成し
てあるので、回転ロータを回転させ回転羽根を回
転させたとき素材が遠心力により外方へ逃げよう
とするのを防ぎ、素材を均一に研磨することがで
きる。特に、この考案では、上から下へ素材を落
下させ、受板と回転羽根とで研磨するために装置
全体が横方向へ大きくならず、コンパクトな構成
となる。また、一般の受板に対してはその上方に
所定間隔をあけて放射線状に複数の回転羽根を回
転ロータに取付けてあるので、受板と回転羽根と
で素材を挟み、回転羽根が回転することで素材に
剪断力及び圧縮力が作用するとともにこすられて
研磨され、隙間よりも小さく破砕・研磨されたも
のは落下し、隙間より大きいものは、次の回転羽
根により順次破砕・研磨される。この考案では素
材をドラム内で飛散させてドラムの内壁にぶつけ
て破砕するものではなく、受板と回転羽根との間
にある素材に剪断力と圧縮力を加え、しかも回転
羽根が放射線状に複数あるために回転羽根と回転
羽根の間の受板上の素材には剪断力も圧縮力も作
用しない。すなわち、この考案では常時素材に力
を加えるのではなく、力を加えたら抜き、抜いた
ら力を加えるというように断続的に素材に剪断力
と圧縮力を加えるので、受板上での素材の流動性
も良く、素材同士のぶつかり合いによる破砕もう
ながし、回転羽根と棒材の消耗も少なくなる。さ
らにまた、隙間にある素材と棒材上にある素材と
では、粒径が同じものだとすると、受ける剪断力
と圧縮力が異なり、受板上を流動する素材に対し
棒材上と隙間上との間に無段階の剪断力及び圧縮
力の変化を受けて角がとれた丸みのある良質な砂
利等を得ることができる。また、隙間に挟まつた
素材はより良く研磨される。
As explained above, according to this invention, the receiving plate is configured to gradually become higher as it goes outward from the center, and the rotating blades also increase in height as they move outward along the receiving plate. Since the height is gradually increased, when the rotating rotor is rotated and the rotating blades are rotated, the material can be prevented from escaping outward due to centrifugal force, and the material can be polished uniformly. In particular, in this invention, the material is dropped from top to bottom and polished using a receiving plate and rotating blades, so the entire device does not become larger in the lateral direction, resulting in a compact configuration. In addition, since a plurality of rotating blades are attached to the rotating rotor in a radial manner at a predetermined interval above the general receiving plate, the material is sandwiched between the receiving plate and the rotating blades, and the rotating blades rotate. As a result, shearing and compressive forces are applied to the material, which is rubbed and polished. Items that are crushed and polished to a size smaller than the gap fall, and items larger than the gap are sequentially crushed and polished by the next rotating blade. . This idea does not scatter the material inside the drum and crush it by hitting the inner wall of the drum, but instead applies shear and compressive force to the material between the receiving plate and the rotating blades, and the rotating blades are radially shaped. Since there are multiple blades, neither shearing force nor compressive force acts on the material on the receiving plate between the rotating blades. In other words, this idea does not apply force to the material all the time, but instead applies shearing and compressive forces to the material intermittently, such as pulling out when force is applied and applying force when it is removed. It has good fluidity, allows for longer crushing due to materials colliding with each other, and reduces wear and tear on the rotating blades and rods. Furthermore, if the material in the gap and the material on the bar have the same particle size, the shearing force and compressive force they receive will be different, and the material on the bar and on the gap will be different for the material flowing on the receiving plate. By undergoing stepless changes in shearing force and compressive force during the process, it is possible to obtain high-quality gravel with rounded corners. Also, the material caught in the gap is polished better.
第1図は全体を示す縦断面図、第2図は受板の
底面図、第3図は受板の半断面図、第4図は回転
羽根の平面図、第5図は回転羽根の断面図、第6
図は別の実施例を示す回転羽根の断面図である。
1……ドラム、2……受板、3……回転ロー
タ、4……回転羽根、21……棒材、21A……
隙間。
Fig. 1 is a longitudinal sectional view showing the whole, Fig. 2 is a bottom view of the receiving plate, Fig. 3 is a half sectional view of the receiving plate, Fig. 4 is a plan view of the rotating blade, and Fig. 5 is a cross section of the rotating blade. Figure, 6th
The figure is a sectional view of a rotating blade showing another embodiment. 1... Drum, 2... Receiving plate, 3... Rotating rotor, 4... Rotating blade, 21... Bar material, 21A...
gap.
Claims (1)
回転ロータを設け、 ドラム内に一段又は二段以上の受板を回転ロー
タの回転により回転しないように取付け、 回転ロータに各受板から所定間隔あけて上方に
位置させて回転ロータの回転により回転するよう
に放射線状に複数の回転羽根を受板と略平行にな
るように取付け、 半径方向へ放射線状に配置した多数の棒材と各
棒材間に形成された隙間とから構成された受板の
各棒材及び回転羽根を中心から外方に向けて徐々
に高くなるように構成し、 ドラム上方から供給されてきた素材を回転ロー
タの回転により回転させられた回転羽根とこの回
転羽根の下方に位置する受板の棒材とで主として
破砕・研磨するように構成したことを特徴とする
破砕研磨装置。[Scope of Claim for Utility Model Registration] A rotating rotor that rotates independently is provided at the center of a substantially hollow cylindrical drum, and one or more stages of receiving plates are installed inside the drum so as not to rotate due to the rotation of the rotating rotor. A plurality of rotating blades are mounted on the rotor at a predetermined distance above each receiving plate, and are arranged radially in a radial direction so that the blades are approximately parallel to the receiving plate so as to be rotated by the rotation of the rotating rotor. The rods and rotating blades of the receiving plate, which is composed of a large number of rods and gaps formed between each rod, are configured to gradually become higher from the center outward, and are fed from above the drum. This crushing and polishing device is characterized in that it mainly crushes and polishes the raw materials that have been processed by the rotary blades rotated by the rotation of the rotary rotor and the rod of the receiving plate located below the rotary blades.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987009642U JPH0335381Y2 (en) | 1987-01-26 | 1987-01-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987009642U JPH0335381Y2 (en) | 1987-01-26 | 1987-01-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63118948U JPS63118948U (en) | 1988-08-01 |
JPH0335381Y2 true JPH0335381Y2 (en) | 1991-07-26 |
Family
ID=30795147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987009642U Expired JPH0335381Y2 (en) | 1987-01-26 | 1987-01-26 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0335381Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105964375B (en) * | 2016-07-18 | 2018-04-13 | 何保罗 | Crystalline flake graphite grinding machine again |
-
1987
- 1987-01-26 JP JP1987009642U patent/JPH0335381Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS63118948U (en) | 1988-08-01 |
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