JP6426409B2 - Chain hoist - Google Patents

Chain hoist Download PDF

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JP6426409B2
JP6426409B2 JP2014183266A JP2014183266A JP6426409B2 JP 6426409 B2 JP6426409 B2 JP 6426409B2 JP 2014183266 A JP2014183266 A JP 2014183266A JP 2014183266 A JP2014183266 A JP 2014183266A JP 6426409 B2 JP6426409 B2 JP 6426409B2
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chain
hole
sensor
hoisting
detection unit
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JP2016055979A (en
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コパン ファブリス
コパン ファブリス
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Konecranes Global Oy
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本発明は、本体と、本体を通り抜ける巻上チェーンと、本体にあり巻上チェーンに用いる第1の貫通孔と、本体にあり巻上チェーンに用いる第2の貫通孔と、チェーン巻上機を作動させるアクチュエータ装置とを有し、アクチュエータは巻上チェーンをチェーン巻上機の上昇または下降方向に貫通孔を通過させて動かす用に供するチェーン巻上機に関するものである。   The present invention comprises a body, a winding chain passing through the body, a first through hole in the body used for the winding chain, a second through hole in the body for the winding chain, and a chain winding machine. The invention relates to a chain hoist having an actuator device to operate, the actuator serving to move the hoisting chain past the through hole in the lifting or lowering direction of the chain hoist.

本発明に係るチェーン巻上機は、特に、舞台装置等の持上げ対象物を正しい高さに迅速かつ正確に昇降させなければならない劇場用や、または同種の用途に用いられる。   The chain hoist according to the present invention is used particularly for theaters or similar applications where a lifting object such as a stage device must be quickly and accurately raised and lowered to the correct height.

従来技術の方式では、正しい高さは目視によって判断せざるを得なく、目視判断に基づいて巻上機を停止させなければならない。しかしながら、目視判断は大抵の場合不正確であり、補正動作を行う必要があることとなる。これに伴って、持ち上げるべき対象物が何かにぶつかり、対象物と周囲物の双方に損傷を与える事故が発生し得る。最悪の場合には、人間に対する傷害が発生する場合がある。   In the prior art approach, the correct height must be determined visually and the machine must be stopped based on visual judgment. However, visual judgment is usually inaccurate and will require corrective action. Along with this, an accident may occur in which an object to be lifted collides with something and damages both the object and the surrounding objects. In the worst case, injuries to humans may occur.

本発明は、上述の課題を解決可能な新規のチェーン巻上機を提供することを目的とする。   An object of the present invention is to provide a novel chain hoist capable of solving the above-mentioned problems.

この課題の解決は、貫通孔のうち少なくとも一方の側で、本体の外側で動く巻上チェーンの一部分にリミッタ部材を備え、巻上チェーンの長手方向におけるリミッタ部材の位置は調節可能であり、リミッタ部材は可検出センサを備え、貫通孔の近傍にセンサ検出部を備え、所定の距離で可検出センサを検出することを特徴とする、本発明に係るチェーン巻上機によって成し遂げられる。センサ検出部は、最も好ましくは、アクチュエータ装置と直接的に通信し、リミッタ部材およびその内部に備えられるセンサがセンサ検出部から前述の検出距離にあるときにはチェーン巻上機を停止させる。   The solution to this problem is to provide a limiter member on a part of the hoisting chain moving outside the main body on at least one side of the through hole, the position of the limiter member in the longitudinal direction of the hoisting chain being adjustable, The member comprises a detectable sensor, a sensor detection unit in the vicinity of the through hole, and the chain winding machine according to the present invention is characterized by detecting the detectable sensor at a predetermined distance. The sensor detection unit most preferably communicates directly with the actuator device and stops the chain hoist when the limiter member and the sensor provided therein are at the aforementioned detection distance from the sensor detection unit.

本発明の他の好ましい実施形態は、従属請求項に開示されている。   Other preferred embodiments of the invention are disclosed in the dependent claims.

本発明のチェーン巻上機によれば、すべての巻上は、好ましくは巻上チェーン上を滑動可能であり所望の位置で固定可能なリミッタ部材によって持上高度が決定された後、正しい位置に精密に行われる。このとき、リミッタ部材内のセンサおよび本体内のセンサは協働して作動し、チェーン巻上機のアクチュエータに停止命令を与える。本発明は、巻上機本体からチェーン輪ひとつ分の距離でリミッタ部材を停止させることができるほど精密である。これによって、自動化された持上高度をきわめて精密に決定することができる。   According to the chain winding machine of the present invention, all the windings are preferably slidable on the winding chain and are in the correct position after the lifting height is determined by the limiter member that can be fixed at the desired position. It takes place precisely. At this time, the sensor in the limiter member and the sensor in the main body operate in cooperation to give a stop command to the actuator of the chain hoist. The present invention is so precise that the limiter member can be stopped at a distance of one chain wheel from the hoist body. This makes it possible to determine the automated lift elevation very precisely.

本発明の手法によれば、簡素な構造であるとともに手頃に実施することが可能であり、さらに、既存のチェーン巻上機を改良することにも適している。冒頭で述べられた使用に加えて、チェーン巻上機の産業上の利用も可能である。   According to the method of the present invention, it is possible to implement with a simple structure and affordably, and it is also suitable to improve the existing chain hoisting machine. In addition to the uses mentioned at the outset, the industrial application of chain hoists is also possible.

次に、添付図面を参照して本発明を好適な実施例によってさらに詳細に説明する。
本発明に係るチェーン巻上機の断面図である。 図1で表されているリミッタ部材の拡大図である。
The invention will now be described in more detail by means of preferred embodiments with reference to the accompanying drawings.
1 is a cross-sectional view of a chain hoist according to the present invention. It is an enlarged view of the limiter member represented by FIG.

図1を参照すると、本発明によるチェーン巻上機の実施例は、本体1、本体1を通り抜ける巻上チェーン2、巻上チェーン2用の本体1にある第1の上側貫通孔3、巻上チェーン2用の本体1にある第2の下側貫通孔4、およびチェーン巻上機を作動させるアクチュエータ装置5、6、7(電気モータ5、ギア6およびチェーンホイール7)を有する。アクチュエータ装置は、貫通孔3および4を通過させて巻上チェーン2をチェーン巻上機の上昇または下降方向に動かす用に供する。本願では、貫通孔3は本体1の上部表面にあり、貫通孔4は本体1の側面にある。本願では、持上げの際に必要となる持上げフック8が本体1の底面に取り付けられる。巻上チェーン2の上端部は、持上領域の上方に備えられた支持構造体(図示せず)に、例えば、巻上チェーン2の上端に固定された第2の持上げフック(図示せず)によって固定される。持上げ作業中に、本体1と持上げフック8は持上げチェーン2に沿って移動し、余った巻上チェーン2は貫通孔4の下方に配置されたチェーン袋9に収集されたり袋9から放出されたりする。もちろん、チェーン巻上機を「反転モード」で、すなわち、巻上機を持上領域の上述した支持構造体に持上げフック8によって固定して使用してもよく、したがってチェーン巻上機の本体1は固定され、巻上チェーン2はチェーン袋9を備える本体1に「巻き取られ」または本体1から「巻き出され」る。この場合でも、本体1に備えられるチェーン袋9は余った巻上チェーン2を収集する用に供する。   Referring to FIG. 1, an embodiment of a chain hoist according to the present invention comprises a body 1, a hoisting chain 2 passing through the body 1, a first upper through hole 3 in the body 1 for the hoisting chain 2, a hoisting It has a second lower through hole 4 in the body 1 for the chain 2 and actuator devices 5, 6, 7 (electric motor 5, gear 6 and chain wheel 7) for operating the chain hoist. The actuator device passes through the through holes 3 and 4 and serves to move the hoisting chain 2 in the upward or downward direction of the chain hoist. In the present application, the through hole 3 is in the upper surface of the main body 1 and the through hole 4 is in the side of the main body 1. In the present application, a lifting hook 8 required for lifting is attached to the bottom of the main body 1. The upper end portion of the hoisting chain 2 is attached to a support structure (not shown) provided above the lifting area, for example, a second lifting hook (not shown) fixed to the upper end of the hoisting chain 2 Fixed by During the lifting operation, the main body 1 and the lifting hook 8 move along the lifting chain 2 and the excess lifting chain 2 is collected in the chain bag 9 disposed below the through hole 4 or released from the bag 9 Do. Of course, the chain hoist may also be used in the "reverse mode", that is to say the hoist may be fixed by means of the lifting hooks 8 to the above mentioned support structure of the lifting area, so that the body of the chain hoist 1 Are fixed and the hoisting chain 2 is “rolled” or “unwound” from the body 1 with the chain bag 9. Even in this case, the chain bag 9 provided in the main body 1 serves to collect the remaining hoisting chains 2.

本発明に係るチェーン巻上機の本質的な態様は、貫通孔3、4のうちの少なくとも一方の側で、本体1の外側を移動する巻上チェーン2の一部分にリミッタ部材10を備え、巻上チェーン2の長手方向におけるリミッタ部材10の位置は調節可能であり、リミッタ部材は可検出センサ11を備えること、さらにはセンサ検出部12を貫通孔3、4の近傍に備え、所定の距離で可検出センサ11を検出することにある。本実施例では、リミッタ部材10および可検出センサ11は貫通孔3、4の外側を移動する巻上チェーン2のそれぞれの側に配置され、センサ検出部12は本体1の内部にある貫通孔3、4のすぐ近くの場所に配置されている。   An essential aspect of the chain hoist according to the present invention comprises a limiter member 10 on a part of the hoisting chain 2 moving on the outside of the main body 1 on at least one side of the through holes 3 and 4; The position of the limiter member 10 in the longitudinal direction of the upper chain 2 is adjustable, and the limiter member is provided with the detectable sensor 11, and further, the sensor detector 12 is provided in the vicinity of the through holes 3 and 4 at a predetermined distance. This is to detect the detectable sensor 11. In the present embodiment, the limiter member 10 and the detectable sensor 11 are disposed on each side of the hoisting chain 2 moving on the outer side of the through holes 3 and 4, and the sensor detection unit 12 is the through hole 3 inside the main body 1. , Is located near 4 places.

可検出センサ11は、例えば磁石であってもよく、センサ検出部12は磁気検出器であってもよい。互いに認識し合う他の一般的に知られた検出対を用いることも可能である。   The detectable sensor 11 may be, for example, a magnet, and the sensor detection unit 12 may be a magnetic detector. It is also possible to use other generally known detection pairs that recognize each other.

センサ検出部12はアクチュエータ装置6、7、8と直接的に通信し、リミッタ部材10およびその内部に備えられるセンサ11がセンサ検出部12から前述の検出距離にあるときにはチェーン巻上機を停止させるよう構成されている。この検出距離は、1つのチェーンの輪の長さに相当する距離ほど短くてもよい。   The sensor detection unit 12 directly communicates with the actuator devices 6, 7, 8 and stops the chain winding machine when the limiter member 10 and the sensor 11 provided therein are within the above-described detection distance from the sensor detection unit 12. It is configured as follows. This detection distance may be as short as the distance corresponding to the length of one chain wheel.

リミッタ部材10が巻上チェーン2上を滑動しやすくなるように、さらには所望の地点で固定できるようにするためには、リミッタ部材10は弾性力によって巻上チェーン2を押し付ける固定部材を備える。   In order to facilitate the limiter member 10 to slide on the hoisting chain 2 and to be able to secure it at a desired point, the limiter member 10 is provided with a fixing member that presses the hoisting chain 2 by elastic force.

好ましくは、リミッタ部材10は円柱であり、巻上チェーン2用の軸上貫通孔13、円柱10を通り抜け貫通孔13と交差する横孔14、横孔14内に入れられ巻上チェーン2をチェーンの両側から押し付ける固定ピン15、円柱10の外面上で横孔14を通って延びている周縁溝16、周縁溝16内に取り付けられ固定ピン15を弾性力によって所定の位置に保持する弾性固定リング17、およびセンサ11用の空間18(掘削孔)を備える円柱である。加えて、この組立体の周囲には、上述の部品を定位置に確実に留める弾性ゴムカバー19が存在する。   Preferably, the limiter member 10 is a cylinder, and the axial through hole 13 for the hoisting chain 2, the horizontal hole 14 passing through the cylinder 10 and intersecting the through hole 13, the winding chain 2 inserted into the horizontal hole 14 A locking pin 15 which presses from both sides, a peripheral groove 16 extending through the transverse hole 14 on the outer surface of the cylinder 10, an elastic fixing ring which is mounted in the peripheral groove 16 and holds the fixing pin 15 in position by elastic force. 17 and a space 18 (drilled hole) for the sensor 11. In addition, around the assembly there is an elastic rubber cover 19 which securely holds the above mentioned parts in place.

本発明に関する上記の記述は、単に本発明の基本的な着想を説明することのみを目的としている。したがって、当業者は添付された特許請求の範囲の範囲内で着想の細部を変更することができる。   The above description of the invention is only for the purpose of explaining the basic idea of the invention. Accordingly, one skilled in the art can vary the details of the idea within the scope of the appended claims.

1 本体
2 巻上チェーン
3、4 貫通孔
5、6、7 アクチュエータ装置
10 リミッタ装置
11 可検出センサ
12 センサ検出部
13 軸上貫通孔
14 横孔
15 固定部材
16 周縁溝
17 弾性固定リング
18 空間
1 main body 2 hoisting chain 3, 4 through hole 5, 6, 7 actuator device
10 limiter device
11 Detectable sensor
12 sensor detector
13 axial through hole
14 horizontal hole
15 Fixing member
16 peripheral groove
17 Elastic Retaining Ring
18 spaces

Claims (4)

本体と、
該本体を通り抜ける巻上チェーンと、
前記本体にあり前記巻上チェーンに用いる第1の貫通孔と、
前記本体にある前記巻上チェーンに用いる第2の貫通孔と、
チェーン巻上機を作動させるアクチュエータ装置とを有し、該アクチュエータは前記巻上チェーンをチェーン巻上機の上昇または下降方向に前記貫通孔を通過させて動かす用に供するチェーン巻上機において、
前記貫通孔のうち少なくとも一方の側で、前記本体の外側で動く前記巻上チェーンの一部分にリミッタ部材を備え、前記巻上チェーンの長手方向における前記リミッタ部材の位置は調節可能であり、前記リミッタ部材は可検出センサを備え、
前記貫通孔の近傍にセンサ検出部を備え、所定の距離で前記可検出センサを検出し、さらに、
前記リミッタ部材は円柱であり、該リミッタ部材は、
前記巻上チェーンに用いる軸上貫通孔と、
前記円柱を通り抜け前記軸上貫通孔と交差する第1の横孔と、
第1の横孔の中に配置され前記巻上チェーンを該チェーンの両側から押し付ける固定ピンと、
前記円柱の外面上で第1の横孔を通って延びている周縁溝と、
該周縁溝内に取り付けられ前記固定ピンを弾性力で所定の位置に保持する弾性固定リングと、
前記円柱の外表面に形成された第2の横孔とを有し、前記可検出センサは第2の横孔内に収容されることを特徴とするチェーン巻上機。
Body and
A hoisting chain passing through the body;
A first through hole in the body and used in the hoisting chain;
A second through hole used in the hoisting chain in the body;
An actuator device for operating the chain hoist, wherein the actuator serves to move the hoisting chain past the through hole in the up or down direction of the chain hoist;
A limiter member is provided on at least one side of the through holes on a part of the winding chain moving outside the main body, and the position of the limiter member in the longitudinal direction of the winding chain is adjustable, the limiter The member has a detectable sensor,
A sensor detection unit is provided in the vicinity of the through hole to detect the detectable sensor at a predetermined distance, and
The limiter member is a cylinder, and the limiter member is
An axial through hole used in the hoisting chain;
A first lateral hole passing through the cylinder and intersecting the axial through hole;
Fixing pins arranged in the first transverse hole and pressing the hoisting chain from both sides of the chain;
A peripheral groove extending through the first transverse hole on the outer surface of the cylinder;
An elastic fixing ring mounted in the peripheral groove and holding the fixing pin in place by elastic force;
And a second transverse hole formed on the outer surface of the cylinder, wherein the detectable sensor is accommodated in the second transverse hole .
請求項1に記載のチェーン巻上機において、前記センサ検出部は前記アクチュエータ装置と直接的に通信し、前記リミッタ部材および該リミッタ部材に備えられる前記センサが前記センサ検出部から前記検出距離にあるときには前記チェーン巻上機を停止させることを特徴とするチェーン巻上機。   The chain winding machine according to claim 1, wherein the sensor detection unit directly communicates with the actuator device, and the limiter member and the sensor provided on the limiter member are at the detection distance from the sensor detection unit. Sometimes, the chain hoisting machine is stopped. 請求項1または2に記載のチェーン巻上機において、前記センサ検出部は前記本体の内部にあり、貫通孔に近接して配置されていることを特徴とするチェーン巻上機。   The chain hoist according to claim 1 or 2, wherein the sensor detection unit is inside the main body and is disposed in the vicinity of the through hole. 請求項1ないし3のいずれかに記載のチェーン巻上機において、前記可検出センサは磁石であり、前記センサ検出部は磁気検出器であることを特徴とするチェーン巻上機。   The chain hoist according to any one of claims 1 to 3, wherein the detectable sensor is a magnet, and the sensor detection unit is a magnetic detector.
JP2014183266A 2014-09-09 2014-09-09 Chain hoist Active JP6426409B2 (en)

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US20230094932A1 (en) 2020-03-09 2023-03-30 Kito Corporation Electric chain block

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JPS4917000B1 (en) * 1969-11-28 1974-04-26
JPS5041401Y2 (en) * 1971-03-27 1975-11-25
JPS5438675Y2 (en) * 1973-09-27 1979-11-16
JPS5544405A (en) * 1978-09-20 1980-03-28 Hitachi Ltd Chain stopper for chain hoist
JPH0486171U (en) * 1990-11-30 1992-07-27
JP2537940Y2 (en) * 1991-10-04 1997-06-04 日本ホイスト株式会社 Safety device for small hoist
JP2573694Y2 (en) * 1992-07-30 1998-06-04 株式会社明電舎 Nursing equipment
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JP2003031121A (en) * 2001-07-18 2003-01-31 Noritake Itron Corp Manufacturing method of fluorescent display tube and frame for fluorescent display tube
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