JP2884424B2 - Belt conveyor device - Google Patents

Belt conveyor device

Info

Publication number
JP2884424B2
JP2884424B2 JP839790A JP839790A JP2884424B2 JP 2884424 B2 JP2884424 B2 JP 2884424B2 JP 839790 A JP839790 A JP 839790A JP 839790 A JP839790 A JP 839790A JP 2884424 B2 JP2884424 B2 JP 2884424B2
Authority
JP
Japan
Prior art keywords
belt
flat
conveyor device
belts
flat belts
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 - Fee Related
Application number
JP839790A
Other languages
Japanese (ja)
Other versions
JPH03216407A (en
Inventor
公秀 黒田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP839790A priority Critical patent/JP2884424B2/en
Publication of JPH03216407A publication Critical patent/JPH03216407A/en
Application granted granted Critical
Publication of JP2884424B2 publication Critical patent/JP2884424B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、それぞれが無端回走するようにした1対の
平ベルトの回走路の一部を互いに重合し、その重合部の
間に被搬送物を挾んで搬送するようにしたベルトコンベ
ヤ装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention superposes a part of the running paths of a pair of flat belts, each of which runs endlessly, and overlaps between the overlapping portions. The present invention relates to a belt conveyor device that conveys a conveyed object.

〔従来の技術〕[Conventional technology]

第6図は、従来のこの種のベルトコンベヤ装置の一例
を示す。
FIG. 6 shows an example of this type of conventional belt conveyor device.

(1)は、ゴム等の弾性を有する平ベルトよりなる主
ベルトで、モータ(図示略)により回転させられるよう
にした駆動ローラ(2)、従動ローラ(3)及び適宜の
ガイドローラ(4)(5)(6)(7)等に掛け回さ
れ、後述する従ベルト(8)と重合する重合搬送部分
(9)がほぼ垂直を向くようにして、無端回走させられ
るようになっている。
(1) is a main belt composed of a flat belt having elasticity such as rubber, and is a driving roller (2), a driven roller (3), and an appropriate guide roller (4) which can be rotated by a motor (not shown). (5) (6) (7) and the like, and a polymerization conveying portion (9), which overlaps with a sub-belt (8) to be described later, is oriented almost vertically so that it can be run endlessly. .

従ベルト(8)は、主ベルト(1)と同様の平ベルト
よりなり、ガイドローラ(6)(7)(10)(12)(1
3)ガイドローラ(6)(7)は主ベルト(1)と共
用)に順次掛け回され、一部が重合搬送部分(9)にお
いて主ベルト(1)と重合し、その摩擦力により、主ベ
ルト(1)とともに無端回走させられるようになってい
る。
The slave belt (8) is a flat belt similar to the main belt (1), and has guide rollers (6) (7) (10) (12) (1).
3) The guide rollers (6) and (7) are sequentially wrapped around the main belt (1)), and a part of the guide rollers (6) and (7) overlaps with the main belt (1) in the overlapping conveyance section (9). It can be run endlessly with the belt (1).

土砂や粉体等である被搬送物(14)は、供給用ホッパ
(15)より、主ベルト(1)の下部水平回走部(16)上
に投下され、次いで、重合搬送部分(9)において、主
ベルト(1)と従ベルト(8)とにより挾まれて、真上
に向かって搬送された後、主ベルト(1)の上部水平回
走部(17)より、荷受け用ホッパ(18)に排出される。
The conveyed object (14), such as earth and sand, powder, etc., is dropped from the supply hopper (15) onto the lower horizontal revolving section (16) of the main belt (1), and then the polymerization conveying section (9) After being conveyed right above by being sandwiched between the main belt (1) and the sub-belt (8), the load receiving hopper (18) is moved from the upper horizontal revolving portion (17) of the main belt (1). ).

第7図及び第8図に示すように、重合搬送部分(9)
において、互いに重合された主ベルト(1)と従ベルト
(8)との各側縁部は、上下位置を順次交互に異ならせ
て適宜のフレーム(図示略)を枢支された前後複数個ず
つの押えローラ(19)(20)をもって前後より挾まれ、
それらの側縁部が互いに開いて、内部に挾んだ被搬送物
(14)が、そこからこぼれ落ちないようにしている。
As shown in FIG. 7 and FIG.
In each of the side edges of the main belt (1) and the sub-belt (8) superimposed on each other, a plurality of front and rear portions which are pivotally supported with an appropriate frame (not shown) by alternately changing the upper and lower positions sequentially. Between the front and back with the holding rollers (19) and (20)
Their side edges are open so that the conveyed object (14) sandwiched inside does not spill therefrom.

また、主ベルト(1)と従ベルト(8)との間に挾ま
れた被搬送物(14)が、両ベルト(1)(8)間におい
てずり落ちるのを防止するため、主ベルト(1)の背面
中央に、上下方向に適宜の間隔を置いてフレームに枢支
された複数個の押圧ローラ(21)が圧接されている。
In order to prevent the object (14) sandwiched between the main belt (1) and the sub belt (8) from slipping between the two belts (1) and (8), the main belt (1) is used. A plurality of pressing rollers (21) pivotally supported by the frame are pressed against the center of the back of the frame at appropriate intervals in the vertical direction.

このような型式ベルトコンベヤ装置によると、重合搬
送部分(9)の上向き傾斜角度を0゜〜90゜の任意の角
度とし、特に90゜又はそれに近い急傾斜として、被搬送
物(14)を搬送することができる。
According to the belt conveyor device of this type, the object (14) is conveyed by setting the upward inclination angle of the superimposed conveyance part (9) to an arbitrary angle of 0 ° to 90 °, and particularly to 90 ° or a steep inclination close thereto. can do.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

上述のような従来のベルトコンベヤ装置において、被
搬送物(14)が流動性のよい粉体である場合、上下に隣
接する1対の押圧ローラ(21)(21)間において、主ベ
ルト(1)と従ベルト(8)との間に挾まれた被搬送物
(14)が、両ベルト(1)(8)の回走方向と逆に落下
し、第7図に破線で示すように、押圧ローラ(21)上に
溜って、両ベルト(1)(8)を両側方に膨満し、上下
に隣接する押しローラ(19)(20)間において、主ベル
ト(1)と従ベルト(8)とを前後に押し広げて、そこ
からこぼれ落ちるおそれがある。
In the conventional belt conveyor device as described above, when the object (14) is a powder having good fluidity, the main belt (1) is placed between a pair of vertically adjacent pressing rollers (21) (21). ) And the driven belt (8) fall in a direction opposite to the running direction of both belts (1) and (8), and as shown by a broken line in FIG. It accumulates on the pressing roller (21) and swells both belts (1) and (8) to both sides, and between the vertically adjacent pressing rollers (19) and (20), the main belt (1) and the sub-belt (8). ) And spread it back and forth, and may spill from there.

また、このような状態となったとき、被搬送物(14)
は、上下1対の押圧ローラ(21)(21)間に滞留したま
ま、上方へ送られなくなる。
When such a condition occurs, the transported object (14)
Is not sent upward while staying between the pair of upper and lower pressing rollers (21).

本発明は、従来の技術が有するこのような問題点に鑑
みてなされたもので、上述のような被搬送物の送り時の
滞留を、簡単な構成により確実に防止し得るようにした
ベルトコンベヤ装置を提供することを目的としている。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the related art, and has a simple configuration to reliably prevent the above-described stagnation of a conveyed object during feeding. It is intended to provide a device.

〔課題を解決するための手段〕[Means for solving the problem]

上記目的を達成するため、本発明のベルトコンベヤ装
置は、それぞれが無端回走するようにした1対の平ベル
トの回走路の一部を互いに重合し、その重合部の間に被
搬送物を挾んで搬送するようにしたベルトコンベヤ装置
において、 前記両平ベルトの重合搬送部分の両側縁部を、適宜の
フレームに枢支された複数個ずつの押えローラをもって
前後より挾み、かつ、前記両平ベルトの重合搬送部分の
いずれか一方の背面に向かって進退可能として前記フレ
ームに設けられ、かつ前記背面に向かって進出する方向
に常時付勢されたブラケットに、前記両平ベルトの回走
方向に互いに離隔した少なくとも1対のプーリを枢支
し、該プーリに掛け回した無端索条を前記背面に圧接す
ることにより、該無端索条が平ベルトと回走するように
したことを特徴としている。
In order to achieve the above object, a belt conveyor device of the present invention superimposes a part of the traveling paths of a pair of flat belts, each of which runs endlessly, and transports a conveyed object between the superimposed portions. In the belt conveyor device, the both side edges of the overlapping and conveying portion of the flat belts are sandwiched from front and rear by a plurality of pressing rollers pivotally supported by an appropriate frame. The traveling direction of the two flat belts is provided on a bracket that is provided on the frame so as to be able to advance and retreat toward any one of the back surfaces of the overlapped and conveyed portions of the flat belt, and is constantly urged in a direction to advance toward the back surface. At least one pair of pulleys spaced apart from each other is pivotally supported, and the endless cable hung on the pulley is pressed against the back surface so that the endless cable runs around the flat belt. It is a sign.

〔作 用〕(Operation)

被搬送物は、重合搬送部分において、両平ベルトの間
に挾まれて搬送される。
The conveyed object is conveyed while being sandwiched between the two flat belts in the overlapping conveyance section.

このとき、重合搬送部分における両平ベルトの両側縁
部は、前後の押えローラにより挾まれて回走するので、
両平ベルトの側縁同士が開くことはない。
At this time, both side edges of both flat belts in the superimposed transport portion run while being sandwiched by the front and rear pressing rollers.
The side edges of the flat belts do not open.

また、プーリと無端索条とが、両平ベルトの重合搬送
部分のいずれか一方の背面に押圧され、平ベルトととも
に回走することにより、平ベルトのたるみが防止され、
従来の押圧ローラを用いた場合のような被搬送物のずり
落ち、及びそれに伴う両平ベルトの側縁部からの被搬送
物のこぼれ落ち等は確実に防止される。
In addition, the pulley and the endless cable are pressed against the back of either one of the overlapped and transported portions of the flat belts, and run around with the flat belt, thereby preventing the flat belt from sagging,
It is possible to reliably prevent the transported object from slipping down as in the case of using the conventional pressing roller and the accompanying dropping of the transported object from the side edges of the flat belts.

〔実施例〕〔Example〕

次に、添付図面を参照して、本発明の実施例について
説明する。
Next, embodiments of the present invention will be described with reference to the accompanying drawings.

第1図乃至第3図は、本発明の第1実施例を示す。な
お、第1実施例において、上述の従来例におけるのと同
一の部材には同一の符号を付して、その詳細な説明は省
略する(第4図に示す第2実施例、及び第5図に示す第
3実施例においても同じ)。
1 to 3 show a first embodiment of the present invention. In the first embodiment, the same members as those in the above-described conventional example are denoted by the same reference numerals, and detailed description thereof is omitted (the second embodiment shown in FIG. 4 and the fifth embodiment shown in FIG. 5). The same applies to the third embodiment shown in FIG.

第1実施例においては、重合搬送部分(9)におい
て、主ベルト(1)と従ベルト(8)との両側縁部を、
適宜のフレームに枢支された前後複数個ずつの押えロー
ラ(19)(20)をもって前後より挾むとともに、従ベル
ト(8)の背面、すなわち後面より、上下2対のプーリ
(22)(22)と、上下のプーリ(22)(22)に掛け回さ
れ、かつ従ベルト(8)の摩擦力により従ベルト(8)
の回走方向と同一方向に無端回走させられるようにした
無端索条である左右1対のVベルト(23)とを有する。
上下方向に列設された適数個の押圧手段(24)を押圧す
るようにしてある。
In the first embodiment, both side edges of the main belt (1) and the sub belt (8) are
A pair of upper and lower pulleys (22) (22) are sandwiched from front and rear by a plurality of pressing rollers (19) and (20) pivotally supported by an appropriate frame from the front and rear sides of the slave belt (8). And the slave belt (8) is wound around the upper and lower pulleys (22) and (22), and is driven by the frictional force of the slave belt (8).
And a pair of left and right V-belts (23), which are endless ropes adapted to be run endlessly in the same direction as the running direction.
An appropriate number of pressing means (24) arranged vertically are pressed.

(25)は、左右のプーリ(22)(22)の共通の軸(2
6)を支持するブラケットで、その背面に突設した支杆
(27)を、装置全体を支持する枠組み状のフレーム(2
8)の一部に進退自在に嵌合し、かつブラケット(25)
とフレーム(28)との間に、圧縮コイルばね(29)を支
杆(27)に通して縮設するこにより、プーリ(22)(2
2)及びVベルト(23)を、従ベルト(8)に向かって
押圧するようになっている。
(25) is a common shaft (2) for the left and right pulleys (22) and (22).
The bracket (6) is supported by a support rod (27) protruding from the back of the bracket.
8) Fits partly in the back and forth, and bracket (25)
By compressing a compression coil spring (29) through a support rod (27) between the frame and the frame (28), the pulley (22) (2
2) and the V-belt (23) are pressed toward the slave belt (8).

その他の構成は、上述の従来のものと同一である。 Other configurations are the same as the above-described conventional one.

第1実施例によると、従ベルト(8)は、プーリ(2
2)とVベルト(23)とにより、広範囲にわたって主ベ
ルト(1)側に押圧されるので、主ベルト(1)と従ベ
ルト(8)との間に空気溜りが生じたり、両ベルト
(1)(8)間において、被搬送物(14)がずり落ちた
りするおそれが少なく、被搬送物(14)をどのような急
傾斜状態でも円滑に搬送することができる。
According to the first embodiment, the slave belt (8) is
2) and the V-belt (23), the belt is pressed toward the main belt (1) over a wide range, so that air is trapped between the main belt (1) and the sub-belt (8), ) And (8), the transported object (14) is less likely to slip down, and the transported object (14) can be smoothly transported in any steeply inclined state.

第4図に示す第2実施例においては、第1実施例にお
けるのと同様のプーリ(22)(22)、Vベルト(23)、
ブラケット(25)、軸(26)、支杆(27)、圧縮コイル
ばね(29)等からなる押圧手段(30)を、主ベルト
(1)の背面より押圧するようにしてある。
In the second embodiment shown in FIG. 4, the same pulleys (22) and (22), V-belt (23),
A pressing means (30) comprising a bracket (25), a shaft (26), a support rod (27), a compression coil spring (29) and the like is pressed from the back of the main belt (1).

このような構成としても、第1実施例のものと同様の
作用及び効果を奏することができる。
With such a configuration, the same operation and effect as those of the first embodiment can be obtained.

第5図に示す第3実施例においては、第1実施例にお
けるのと同様のブラケット(25)により支持された軸
(26)に、内外2個ずつ合計4個のプーリ(22)(31)
を枢嵌し、上下に隣接する内側のプーリ(22)(22)同
士にVベルト(23)を掛け回すとともに、Vベルト(2
3)の上部が掛け回されているプーリ(22)(22)の外
側のプーリ(31)には、別のVベルト(32)の下部を掛
け回し、またVベルト(23)の下部が掛け回されている
プーリ(22)(22)の外側のプーリ(31)には、さらに
別のVベルト(32)の上部を掛け回すことにより、Vベ
ルト(23)とVベルト(32)とが鎖状に交互に入れ替っ
て連続するようにして、一連の押圧手段(33)を構成
し、これを、従ベルト(8)に向かって押圧するように
してある。
In the third embodiment shown in FIG. 5, a total of four pulleys (22) (31) are provided on the shaft (26) supported by the same bracket (25) as in the first embodiment.
The V-belt (23) is wound around the inner pulleys (22) (22) vertically adjacent to each other, and the V-belt (2
The lower part of another V-belt (32) is wrapped around the pulley (31) outside the pulley (22) (22) on which the upper part is wrapped, and the lower part of the V-belt (23) is wrapped around the pulley (31). The V-belt (23) and the V-belt (32) are wound around the pulley (31) outside the turned pulleys (22) and (22) by further wrapping the top of another V-belt (32). A series of pressing means (33) is constituted so as to be alternately and continuously alternated in a chain shape, and this is pressed toward the slave belt (8).

第3実施例のような構成とすると、押圧手段(33)に
より、従ベルト(8)を、途中で途切れることなく、連
続して主ベルト(1)側に向かって均一に押圧すること
ができるとともに、ブラケット(25)や軸(26)等の部
品点数を減少できる。
With the configuration as in the third embodiment, the pressing means (33) can press the slave belt (8) continuously and uniformly toward the main belt (1) without interruption. At the same time, the number of parts such as the bracket (25) and the shaft (26) can be reduced.

なお、第5図に想像線で示すように、各軸(26)の中
央に、さらにもう1個のプーリ(34)を枢嵌し、これ
に、外側のVベルト(32)間に配設した別のVベルト
(35)を掛け回して、これを従ベルト(8)の背面中央
に押圧させてもよい。
As shown by the imaginary line in FIG. 5, another pulley (34) is pivotally fitted to the center of each shaft (26), and is disposed between the outer V-belts (32). Another V-belt (35) may be wrapped around and pressed against the center of the back of the slave belt (8).

本発明は、以上の実施例の他にも、例えば次のような
幾多の変化変形が可能である。
In the present invention, in addition to the above embodiments, for example, the following various changes and modifications are possible.

(1)押圧手段におけるプーリを上下1対のみとし、こ
れを幅広のベルトを掛け回す。
(1) Only one pair of upper and lower pulleys in the pressing means is used, and a wide belt is wrapped around the pair.

(2)無端索条として、Vベルトに代えて、チェーン、
ロープ等とする。
(2) As an endless cable, a chain,
Rope, etc.

(3)従来の装置における押圧ローラ(21)と同一のも
のを設け、これと押圧手段とで主ベルトと従ベルト、す
なわち両平ベルトを前後より挾んで回走させるようにす
る。
(3) The same roller as the pressing roller (21) in the conventional apparatus is provided, and the pressing belt and the pressing means are used to rotate the main belt and the sub-belt, that is, the two flat belts, from front and rear.

(4)プーリの数及びプーリと無探索条との配置を適宜
変更する。
(4) The number of pulleys and the arrangement of the pulleys and the non-search strips are appropriately changed.

〔発明の効果〕〔The invention's effect〕

本発明によると、プーリと無端索条とにより、両平ベ
ルトに広範囲にわたって互いに押圧されるので、空気溜
りや、両平ベルト間における被搬送物のずり落ち、及び
それによる被搬送物の溜り等が生じるおそれが少なく、
また、万一両平ベルト間に被搬送物の局部的な溜りが生
じたとしても、それをそのまま搬送方向にしごき上げ
て、確実に搬送させることができる。
According to the present invention, since the pulley and the endless cable are pressed against each other over a wide range by the two flat belts, air pools, slippage of the conveyed object between the flat belts, and accumulation of the conveyed object due thereto Is less likely to occur,
Also, even if a local accumulation of the conveyed object occurs between the flat belts, the conveyed object can be lifted up as it is in the conveying direction and can be surely conveyed.

【図面の簡単な説明】[Brief description of the drawings]

第1図は、本発明の第1実施例の重合搬送部分の側面
図、 第2図は、第1図のA−A線に沿う縦断面図、 第3図は、第2図のB−B線に沿う横断面図、 第4図は、本発明の第2実施例の第3図と同様の横断面
図、 第5図は、本発明の第3実施例の第2図と同様の縦断面
図、 第6図は、従来のベルトコンベヤ装置の一例の概略側面
図、 第7図は、第6図のC−C線矢示図、 第8図は、第7図のD−D線に沿う横断面図である。 (1)主ベルト(平ベルト)、(2)駆動ローラ (3)従動ローラ (4)(5)(6)(7)(10)(11)(12)(13)ガ
イドローラ (8)従ベルト(平ベルト)、(9)重合搬送部分 (14)被搬送物、(15)供給用ホッパ (16)下部水平回走部、(17)上部水平回走部 (18)荷受け用ホッパ、(19)(20)押えローラ (21)押圧ローラ、(22)プーリ (23)Vベルト(無端索条)、(24)押圧手段 (25)ブラケット、(26)軸 (27)支杆、(28)フレーム (29)圧縮コイルばね、(30)押圧手段 (31)プーリ、(32)Vベルト (33)押圧手段、(34)プーリ (35)Vベルト
FIG. 1 is a side view of a superimposed transport portion according to a first embodiment of the present invention, FIG. 2 is a longitudinal sectional view taken along the line AA in FIG. 1, and FIG. FIG. 4 is a transverse sectional view similar to FIG. 3 of the second embodiment of the present invention, and FIG. 5 is a transverse sectional view similar to FIG. 2 of the third embodiment of the present invention. FIG. 6 is a schematic side view of an example of a conventional belt conveyor device, FIG. 7 is a diagram showing a line CC in FIG. 6, and FIG. 8 is a line DD in FIG. It is a cross-sectional view along a line. (1) Main belt (flat belt), (2) drive roller (3) driven roller (4) (5) (6) (7) (10) (11) (12) (13) guide roller (8) driven Belt (flat belt), (9) Overlapping conveyance part (14) Conveyed object, (15) Supply hopper (16) Lower horizontal revolving part, (17) Upper horizontal revolving part (18) Load receiving hopper, ( 19) (20) Pressing roller (21) Pressing roller, (22) Pulley (23) V-belt (endless cable), (24) Pressing means (25) Bracket, (26) Shaft (27) Rod, (28) ) Frame (29) Compression coil spring, (30) Pressing means (31) Pulley, (32) V belt (33) Pressing means, (34) Pulley (35) V belt

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】それぞれが無端回走するようにした1対の
平ベルトの回走路の一部を互いに重合し、その重合部の
間に被搬送物を挾んで搬送するようにしたベルトコンベ
ヤ装置において、 前記両平ベルトの重合搬送部分の両側縁部を、適宜のフ
レームに枢支された複数個ずつの押えローラをもって前
後より挾み、かつ、前記両平ベルトの重合搬送部分のい
ずれか一方の背面に向かって進退可能として前記フレー
ムに設けられ、かつ前記背面に向かって進出する方向に
常時付勢されたブラケットに、前記両平ベルトの回走方
向に互いに離隔した少なくとも1対のプーリを枢支し、
該プーリに掛け回した無端索条を前記背面に圧接するこ
とにより、該無端索条が平ベルトと回走するようにした
ことを特徴とするベルトコンベヤ装置。
1. A belt conveyor device in which a part of the running paths of a pair of flat belts, each of which runs endlessly, are overlapped with each other, and a conveyed object is conveyed between the overlapped portions. In the above, the both side edges of the overlapped conveying portion of the two flat belts are sandwiched from front and rear by a plurality of pressing rollers pivotally supported by an appropriate frame, and any one of the overlapping conveying portions of the two flat belts At least one pair of pulleys separated from each other in the running direction of the two flat belts are mounted on a bracket which is provided on the frame so as to be able to advance and retreat toward the rear surface of the flat belt, and is constantly urged in a direction in which the flat belt advances. Pivot,
A belt conveyor device wherein the endless cable runs around the flat belt by pressing the endless cable wound around the pulley against the back surface.
JP839790A 1990-01-19 1990-01-19 Belt conveyor device Expired - Fee Related JP2884424B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP839790A JP2884424B2 (en) 1990-01-19 1990-01-19 Belt conveyor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP839790A JP2884424B2 (en) 1990-01-19 1990-01-19 Belt conveyor device

Publications (2)

Publication Number Publication Date
JPH03216407A JPH03216407A (en) 1991-09-24
JP2884424B2 true JP2884424B2 (en) 1999-04-19

Family

ID=11692054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP839790A Expired - Fee Related JP2884424B2 (en) 1990-01-19 1990-01-19 Belt conveyor device

Country Status (1)

Country Link
JP (1) JP2884424B2 (en)

Also Published As

Publication number Publication date
JPH03216407A (en) 1991-09-24

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