JPH0840669A - Detector for slack of hanger belt of lift device - Google Patents
Detector for slack of hanger belt of lift deviceInfo
- Publication number
- JPH0840669A JPH0840669A JP19595594A JP19595594A JPH0840669A JP H0840669 A JPH0840669 A JP H0840669A JP 19595594 A JP19595594 A JP 19595594A JP 19595594 A JP19595594 A JP 19595594A JP H0840669 A JPH0840669 A JP H0840669A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- suspension
- hanging
- suspension belt
- base plate
- 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.)
- Granted
Links
Landscapes
- Types And Forms Of Lifts (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、搬送用電車の走行レベ
ルを変えるためなどに使用される昇降搬送装置の昇降ガ
イドレールや、搬送用電車などから昇降可能に吊り下げ
られる被搬送物支持用ハンガーなどの各種昇降装置の吊
下ベルト弛み検出装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating guide rail of an elevating / conveying device used for changing the traveling level of a transportation train, and for supporting an object to be hung from a transportation train. The present invention relates to a hanging belt slack detecting device for various lifting devices such as hangers.
【０００２】[0002]
【従来の技術】このような各種昇降装置の昇降駆動用吊
下ベルトの端部は、吊下ベルト結合手段により昇降装置
側に結合される。この吊下ベルト結合手段は、昇降装置
側に連結されたベースプレートと、このベースプレート
との間で吊下ベルトの端部を挟持固定する押さえプレー
トとから構成される。一方、吊下ベルトとしては、ベル
ト長さ方向と平行な補強用線材がベルト巾方向に多数本
内蔵されたタイミングベルト状のものや平ベルト状のも
のが使用される。2. Description of the Related Art An end portion of a lifting belt for driving up and down of such various lifting devices is joined to the lifting device side by a hanging belt joining means. The suspension belt coupling means is composed of a base plate connected to the lifting device side and a pressing plate that clamps and fixes the end portion of the suspension belt between the base plate and the base plate. On the other hand, as the hanging belt, a timing belt-shaped one or a flat belt-shaped one in which a plurality of reinforcing wire rods parallel to the belt length direction are incorporated in the belt width direction is used.
【０００３】タイミングベルト状の吊下ベルトが使用さ
れるときは、吊下ベルト結合手段のベースプレートに
は、当該吊下ベルトの凹凸面と嵌合する凹凸面が形成さ
れて吊下ベルトの滑りを防止し、平ベルト状の吊下ベル
トが使用されるときは、当該吊下ベルトの端部を折り返
し、そのＵターン部に軸杆を挿通した状態で折り返し重
なり部をベースプレートと押さえプレートとの間で挟持
固定することが行われている。When a timing belt-shaped suspension belt is used, the base plate of the suspension belt coupling means is formed with an uneven surface that fits with the uneven surface of the suspension belt to prevent slipping of the hanging belt. To prevent this, when a flat belt-shaped suspension belt is used, the end portion of the suspension belt is folded back, and the folded overlap portion is placed between the base plate and the pressing plate with the shaft rod inserted through the U-turn portion. It is being clamped and fixed by.
【０００４】[0004]
【発明が解決しようとする課題】上記のように吊下ベル
トと吊下ベルト結合手段との間の滑り防止対策だけで
は、吊下ベルト結合手段におけるベースプレートと押さ
えプレートとの挟持力を十分に大きくしても、ウレタン
樹脂などから成形されているベルト本体の経年劣化によ
り内蔵する補強用線材とベルト本体との結合強度が低下
し、吊下ベルト結合手段を介して昇降装置の荷重を受け
ているベルト本体と補強用線材との間に滑りが発生す
る。また、仮に補強用線材とベルト本体との間に滑りが
生じないとしても、ベルト本体の経年劣化による“へた
り”によって、吊下ベルト結合手段による吊下ベルト挟
持固定力が低下した状態となり、この吊下ベルト結合手
段と吊下ベルトとの間に滑りが発生する。SUMMARY OF THE INVENTION As described above, only the measure for preventing slippage between the suspension belt and the suspension belt coupling means can sufficiently increase the clamping force between the base plate and the pressing plate in the suspension belt coupling means. Even if the belt body molded from urethane resin or the like deteriorates over time, the strength of the connection between the built-in reinforcing wire and the belt body will decrease, and the load of the lifting device will be received through the hanging belt connecting means. Slip occurs between the belt body and the reinforcing wire. Even if there is no slippage between the reinforcing wire and the belt body, the "settling" caused by the deterioration of the belt body over time causes the suspension belt pinching force of the suspension belt connecting means to decrease. Slip occurs between the suspension belt connecting means and the suspension belt.
【０００５】上記のようなベルト本体と補強用線材との
間の滑りや吊下ベルト結合手段と吊下ベルトとの間の滑
りを放置すれば、当該吊下ベルトで吊り下げられている
昇降装置の落下事故につながる恐れがあるが、従来は、
このような滑りを自動的に検出し得る手段が考えられて
おらず、単に吊下ベルト結合手段の押さえプレートの締
結力をチェックすることが行われていたに過ぎない。If the slip between the belt body and the reinforcing wire and the slip between the suspension belt connecting means and the suspension belt are left as they are, the lifting device suspended by the suspension belt. Although it may lead to a fall accident,
No means for automatically detecting such slippage has been considered, and merely checking the fastening force of the holding plate of the suspension belt coupling means has been performed.
【０００６】[0006]
【課題を解決するための手段】本発明は上記のような従
来の問題点を解決するために成されたものであって、そ
の特徴を後述する実施例の参照符号を括弧付きで付して
示すと、吊下ベルト結合手段(10)と、吊下ベルト(5)
と、検出器(18)とを有し、吊下ベルト結合手段(10)は、
昇降装置(1,8) に連結されたベースプレート(13)と、こ
のベースプレート(13)との間で吊下ベルト(5) を挟持固
定する押さえプレート(14)とから成り、吊下ベルト(5)
は、吊下ベルト結合手段(10)で挟持固定された側の端に
被検出部(17)を有し、検出器(18)は、昇降装置(1,8) 側
に取付けられて、吊下ベルト(5) の被検出部(17)と係合
するアクチュエータ(18a) を有する点に特徴を有する。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, the features of which will be described with reference numerals of embodiments described later in parentheses. Shown are the suspension belt coupling means (10) and the suspension belt (5).
And a detector (18), the suspension belt coupling means (10),
It consists of a base plate (13) connected to the lifting device (1, 8) and a holding plate (14) that clamps and fixes the suspension belt (5) between the base plate (13). )
Has a part to be detected (17) at the end that is clamped and fixed by the suspension belt coupling means (10), and the detector (18) is attached to the lifting device (1, 8) side and suspended. It is characterized in that it has an actuator (18a) that engages with the detected part (17) of the lower belt (5).
【０００７】上記の本発明を実施するに際しては、吊下
ベルト(22)の端部を折り返し、吊下ベルト結合手段(10)
は、吊下ベルト(22)の折り返し重なり部(22b) をベース
プレート(13)と押さえプレート(14)との間で挟持固定す
るようにし、吊下ベルトの被検出部(17)は、押さえプレ
ート(14)の下側に突出する吊下ベルトのＵターン部(22
a) で形成することができる。In carrying out the present invention described above, the end portions of the suspension belt (22) are folded back and the suspension belt connecting means (10) is provided.
Clamps the folded back overlapping part (22b) of the hanging belt (22) between the base plate (13) and the holding plate (14), and the detected part (17) of the hanging belt is (14) U-turn part (22
a) can be formed.
【０００８】また、吊下ベルト(5) が、その長さ方向と
平行な補強用線材(16)をベルト巾方向に複数本内蔵する
ものである場合、被検出部(17)を、ベルト端部から突出
させた補強用線材(16a,16b) により形成することができ
る。例えば、ベルト端部から突出する２本の補強用線材
(16a,16b) の遊端を互いに結合して被検出部(17)を形成
することができる。Further, when the suspension belt (5) contains a plurality of reinforcing wire rods (16) parallel to the length direction thereof in the belt width direction, the detected portion (17) is It can be formed by the reinforcing wire rods (16a, 16b) protruding from the portion. For example, two reinforcing wire rods protruding from the belt end
The free ends of (16a, 16b) can be connected to each other to form the detected part (17).
【０００９】さらに、吊下ベルト(5) が、その一側面(5
a)が長さ方向において凹凸状に形成されたタイミングベ
ルトである場合、吊下ベルト結合手段(10)のベースプレ
ート(13)には、吊下ベルト(5) の凹凸側面(5a)に嵌合す
る凹凸面(13a) を形成し、吊下ベルト(5) の補強用線材
(16a,16b) で形成された被検出部(17)を押さえプレート
(14)の下側に突出させることができる。Further, the suspension belt (5) has one side (5
When (a) is a timing belt that is formed in an uneven shape in the length direction, the base plate (13) of the hanging belt coupling means (10) is fitted to the uneven side surface (5a) of the hanging belt (5). To form the uneven surface (13a) to reinforce the suspension belt (5)
Holds the detected part (17) formed by (16a, 16b)
(14) It can be made to project below.
【００１０】また、吊下ベルト(20)の端部を折り返えし
てそのＵターン部(20a) の内側にベルト巾方向に軸杆(2
1)を挿通し、吊下ベルト結合手段(10)は、前記軸杆(21)
が押さえプレート(14)の下側に隣接するように、吊下ベ
ルトの折り返し重なり部(20b) をベースプレート(13)と
押さえプレート(14)との間で挟持固定させ、吊下ベルト
の補強用線材(16a,16b) で形成された被検出部(17)を、
押さえプレート(14)の上側に突出させることもできる。Further, the end portion of the suspension belt (20) is folded back and the shaft rod (2) is provided inside the U-turn portion (20a) in the belt width direction.
1), the hanging belt connecting means (10) is the shaft rod (21).
The folded back overlap part (20b) of the hanging belt is clamped and fixed between the base plate (13) and the holding plate (14) so that it is adjacent to the lower side of the holding plate (14). The detected part (17) made of wire (16a, 16b)
It can also be projected above the pressing plate (14).
【００１１】なお、検出器(18)は、吊下ベルト結合手段
(10)のベースプレート(13)に取付けることができる。The detector (18) is a suspension belt connecting means.
It can be attached to the base plate (13) of (10).
【００１２】[0012]
【実施例】以下、本発明の一実施例を添付の例示図に基
づいて説明すると、図１は従来周知の昇降搬送装置（ド
ロップリフター）を示し、１は昇降キャレッジであっ
て、支柱２に沿って設けられた昇降ガイドレール３に昇
降自在に支持され、搬送用電車の走行レベル変更のため
のガイドレール４を備えている。５は駆動用プーリ６と
案内用プーリ７とに掛け渡された吊下ベルトであって、
その両端で、昇降キャレッジ１と支柱２内に昇降可能に
内装されたカウンターウエイト８とを釣瓶式に吊り下げ
ている。駆動用プーリ６と案内用プーリ７とは支柱２の
上端に支持された吊下用フレーム９上に軸支されてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a conventionally known lifting / lowering transfer device (drop lifter). A lift guide rail 3 is provided along the lift guide rail 3 so as to be lifted and lowered, and includes a guide rail 4 for changing the traveling level of the transportation train. Reference numeral 5 denotes a hanging belt that is wound around a driving pulley 6 and a guiding pulley 7,
At both ends thereof, an elevator carriage 1 and a counterweight 8 which is vertically movable inside a column 2 are suspended in a fishing bottle manner. The drive pulley 6 and the guide pulley 7 are pivotally supported on a suspension frame 9 supported on the upper ends of the columns 2.
【００１３】本発明は、例えば上記のような昇降搬送装
置（ドロップリフター）における吊下ベルト５と昇降装
置である昇降キャレッジ１やカウンターウエイト８との
結合か所に実施されるものであって、以下、昇降キャレ
ッジ１とカウンターウエイト８とを昇降装置と呼称す
る。The present invention is implemented, for example, at a place where the hanging belt 5 and the lifting carriage 1 or the counterweight 8 which is the lifting device in the lifting transport device (drop lifter) as described above are coupled to each other. Hereinafter, the lifting carriage 1 and the counterweight 8 are referred to as a lifting device.
【００１４】吊下ベルト５と昇降装置１，８とは吊下ベ
ルト結合手段１０によって連結されている。この結合手
段１０は、図２〜図４に示すように、昇降装置１，８側
に固着される軸受部材１１と、この軸受部材１１に水平
支軸１２により吊下ベルト５の巾方向に揺動自在に軸支
されたベースプレート１３と、このベースプレート１３
との間で吊下ベルト５を挟持固定する押さえプレート１
４と、複数本の締結用ボルト１５とから構成されてい
る。The hanging belt 5 and the lifting devices 1 and 8 are connected by a hanging belt connecting means 10. As shown in FIGS. 2 to 4, the coupling means 10 includes a bearing member 11 fixed to the elevating devices 1 and 8 and a horizontal support shaft 12 swinging the bearing member 11 in the width direction of the hanging belt 5. A base plate 13 that is movably supported, and this base plate 13
A holding plate 1 for sandwiching and fixing the hanging belt 5 between
4 and a plurality of fastening bolts 15 are included.
【００１５】吊下ベルト５は、その一側面５ａがベルト
長さ方向において凹凸状に形成されたタイミングベルト
であり、その内部には、ベルト長さ方向と平行な補強用
線材１６がベルト巾方向に等間隔おきに多数本埋設され
ている。従って、吊下ベルト結合手段１０のベースプレ
ート１３には、吊下ベルト５の凹凸側面５ａに嵌合する
凹凸面１３ａが形成されている。また、吊下ベルト結合
手段１０の押さえプレート１４には、吊下ベルト５の厚
さより若干浅いベルト嵌合凹溝１４ａが全長にわたって
形成されており、吊下ベルト５の端部をその凹凸側面５
ａが外側になるように押さえプレート１４のベルト嵌合
凹溝１４ａに嵌合させるとともに、当該吊下ベルト５の
凹凸側面５ａをベースプレート１３の凹凸面１３ａ上に
嵌合させ、係る状態で押さえプレート１４の両側辺をボ
ルト１５によりベースプレート１３上に固定することに
より、吊下ベルト５の端部を結合手段１０のベースプレ
ート１３（昇降装置１，８）に結合することができる。The hanging belt 5 is a timing belt whose one side surface 5a is formed in a concavo-convex shape in the belt length direction, and a reinforcing wire 16 parallel to the belt length direction is provided inside the timing belt. Many are buried at equal intervals. Therefore, the base plate 13 of the hanging belt coupling means 10 is formed with the uneven surface 13a that fits into the uneven side surface 5a of the hanging belt 5. Further, a belt fitting groove 14a, which is slightly shallower than the thickness of the hanging belt 5, is formed on the pressing plate 14 of the hanging belt coupling means 10 over the entire length, and the end portion of the hanging belt 5 is formed on the uneven side surface 5 thereof.
The pressing plate 14 is fitted in the belt fitting groove 14a of the pressing plate 14 so that a is on the outside, and the uneven side surface 5a of the hanging belt 5 is fitted on the uneven surface 13a of the base plate 13 in such a state. By fixing both sides of 14 to the base plate 13 with the bolts 15, the ends of the suspension belt 5 can be connected to the base plate 13 (elevating devices 1, 8) of the connecting means 10.
【００１６】吊下ベルト５の補強用線材１６の内、ベル
ト巾方向に適当に離れた位置にある２本の補強用線材、
例えばベルト巾方向の両端にある２本の補強用線材１６
ａ，１６ｂは、ベルト端部よりも適当長さ延出させてお
り、この両補強用線材１６ａ，１６ｂの遊端を溶接やか
しめ金具などの適当な方法で互いに結合して、ループ状
の被検出部１７が形成されている。Among the reinforcing wire rods 16 of the hanging belt 5, two reinforcing wire rods located at positions appropriately separated in the belt width direction,
For example, two reinforcing wire rods 16 at both ends in the belt width direction
a and 16b are extended from the belt end portions by an appropriate length, and the free ends of both the reinforcing wire rods 16a and 16b are connected to each other by an appropriate method such as welding or caulking metal fittings to form a loop-shaped cover. The detection unit 17 is formed.
【００１７】吊下ベルト結合手段１０のベースプレート
１３の背面には、検出器１８が取付けられている。この
検出器１８は、ベースプレート１３に設けられた貫通孔
１９を通じて押さえプレート１４の下側に突出するアク
チュエータ１８ａを備えており、当該アクチュエータ１
８ａの先端凹部１８ｂに、吊下ベルト５の端部から押さ
えプレート１４の下側に突出しているループ状の被検出
部１７が係合している。A detector 18 is attached to the back surface of the base plate 13 of the hanging belt connecting means 10. The detector 18 is provided with an actuator 18 a that protrudes below the pressing plate 14 through a through hole 19 provided in the base plate 13.
A loop-shaped detected portion 17 protruding from the end portion of the hanging belt 5 to the lower side of the pressing plate 14 is engaged with the tip concave portion 18b of 8a.
【００１８】上記の構成によれば、吊下ベルト５と吊下
ベルト結合手段１０のベースプレート１３とは、吊下ベ
ルト５の凹凸側面５ａとベースプレート１３の凹凸面１
３ａとの嵌合により十分な強度をもって結合することが
できる。しかして、吊下ベルト５の経年劣化により補強
用線材１６とベルト本体との結合強度が低下すると、吊
下ベルト結合手段１０を介して昇降装置１，８の荷重が
吊下ベルト５のベルト本体に作用しているため、当該吊
下ベルト５のベルト本体と補強用線材１６との間に滑り
が生じて、補強用線材１６に対しベルト本体のみが重力
で下方へ滑動することが考えられる。According to the above construction, the suspension belt 5 and the base plate 13 of the suspension belt connecting means 10 are provided with the uneven side surface 5a of the hanging belt 5 and the uneven surface 1 of the base plate 13.
By fitting with 3a, they can be coupled with sufficient strength. When the strength of the suspension belt 5 is deteriorated and the strength of the connection between the reinforcing wire 16 and the belt body is reduced, the load of the lifting devices 1 and 8 is applied to the belt body of the suspension belt 5 via the suspension belt coupling means 10. Therefore, it is conceivable that slippage occurs between the belt main body of the suspension belt 5 and the reinforcing wire 16 and only the belt main body slides downward with respect to the reinforcing wire 16 due to gravity.
【００１９】このような事態が生じた場合、吊下ベルト
５の下端から下方に突出している補強用線材１６ａ，１
６ｂから成る被検出部１７が、吊下ベルト結合手段１０
のベースプレート１３に対し相対的に上昇移動すること
になる。従って、ベースプレート１３に取付けられてい
る検出器１８のアクチュエータ１８ａが被検出部１８ａ
によって引き上げられ、このアクチュエータ１８ａの運
動により検出器１８が作動して検出信号が生じる。この
検出信号により警告灯や警報などを作動させて吊下ベル
ト５の異常を表示することができる。When such a situation occurs, the reinforcing wire rods 16a, 1 protruding downward from the lower end of the hanging belt 5
The detected part 17 composed of 6b is the hanging belt connecting means 10
Will move upward relative to the base plate 13. Therefore, the actuator 18a of the detector 18 attached to the base plate 13 is not detected by the detected portion 18a.
The detector 18 is activated by the movement of the actuator 18a to generate a detection signal. With this detection signal, a warning light or alarm can be activated to display an abnormality of the hanging belt 5.
【００２０】吊下ベルト５として、凹凸側面５ａを有す
るタイミングベルト状のものを示したが、図５に示すよ
うに、補強用線材１６を同様に内蔵する平ベルト状の吊
下ベルト２０が使用されるときは、当該吊下ベルト２０
の端部を折り返してそのＵターン部２０ａの内側にベル
ト巾方向に軸杆２１を挿通し、吊下ベルト結合手段１０
は、前記軸杆２１が押さえプレート１４の下側に隣接す
るように、吊下ベルト２０の折り返し重なり部２０ｂを
ベースプレート１３と押さえプレート１４との間で挟持
固定すれば良い。この場合、吊下ベルト２０の補強用線
材１６ａ，１６ｂで形成された被検出部１７が押さえプ
レート１４の上側に突出することになるので、検出器１
８はベースプレート１３の上端背面に取付け、そのアク
チュエータ１８ａをベースプレート１３の上方に延出さ
せて、先端凹部１８ｂに被検出部１７を係合すれば良
い。As the suspension belt 5, a timing belt-shaped suspension belt 5 having concave and convex side surfaces 5a is shown, but as shown in FIG. 5, a flat belt-shaped suspension belt 20 in which a reinforcing wire 16 is also incorporated is used. When the suspension belt 20
The end portion of the suspension belt is folded back and the shaft rod 21 is inserted inside the U-turn portion 20a in the belt width direction, and the suspension belt coupling means 10
With regard to this, the folded back overlapping portion 20 b of the hanging belt 20 may be clamped and fixed between the base plate 13 and the pressing plate 14 so that the shaft rod 21 is adjacent to the lower side of the pressing plate 14. In this case, the detected portion 17 formed of the reinforcing wire rods 16a and 16b of the hanging belt 20 projects above the pressing plate 14, and thus the detector 1
8 is attached to the rear surface of the upper end of the base plate 13, the actuator 18a thereof may be extended above the base plate 13, and the detection target portion 17 may be engaged with the tip recess 18b.
【００２１】この構成によれば、吊下ベルト２０のベル
ト本体に経年劣化による“へたり”が生じて、吊下ベル
ト２０の折り返し重なり部２０ｂに対する吊下ベルト結
合手段１０のベースプレート１３と押さえプレート１４
との挟持力が低下すると、吊下ベルト２０に作用してい
る荷重で吊下ベルト結合手段１０に対し吊下ベルト２０
が上方に引き抜かれるような現象が生じる。このとき、
被検出部１７も吊下ベルト２０と一体にベースプレート
１３に対し下方へ移動することになるので、この被検出
部１７の運動が検出器１８によって検出されることにな
る。According to this structure, the belt body of the suspension belt 20 suffers from "sagging" due to deterioration over time, and the base plate 13 and the pressing plate of the suspension belt coupling means 10 with respect to the folded back overlapping portion 20b of the suspension belt 20. 14
When the holding force between the suspension belt 20 and the suspension belt 20 decreases, the suspension belt 20 is attached to the suspension belt coupling means 10 by the load acting on the suspension belt 20.
Occurs as if is pulled upward. At this time,
Since the detected part 17 also moves downward with respect to the base plate 13 together with the hanging belt 20, the motion of the detected part 17 is detected by the detector 18.
【００２２】なお、補強用線材１６により被検出部１７
を形成する方法として、上記実施例のように吊下ベルト
端部から突出させた２本の補強用線材１６ａ，１６ｂを
互いに結合してループ状の被検出部１７を形成する他、
１本の補強用線材１６を吊下ベルト端部から突出させ、
この１本の補強用線材１６の先端をループ状に形成して
被検出部とすることもできる。The reinforcing wire 16 is used to detect the detected portion 17
As a method of forming the above, as in the above-described embodiment, two reinforcing wire rods 16a and 16b protruding from the end portion of the hanging belt are connected to each other to form the loop-shaped detected portion 17,
One reinforcing wire 16 is projected from the end of the hanging belt,
The tip of this one reinforcing wire 16 may be formed in a loop shape to serve as the detected portion.
【００２３】また、図６に示すように吊下ベルト２２の
端部を折り返し、その折り返しＵターン部２２ａを吊下
ベルト結合手段１０の押さえプレート１４から下方に突
出させた状態で、折り返し重なり部２２ｂをベースプレ
ート１３と押さえプレート１４との間で挟持固定し、押
さえプレート１４から下方に突出するＵターン部２２ａ
の底部を被検出部１７として、この内側にベースプレー
ト１３に取付けた検出器１８のアクチュエータ１８ａを
係合させ、吊下ベルト結合手段１０に対し吊下ベルト２
２が上方に引き抜かれるように移動したときのＵターン
部２２ａの底部（被検出部１７）の上昇移動を検出器１
８で検出するように構成することができる。この構成
は、吊下ベルト２２に補強用線材１６が埋設されていな
い場合にも実施することができる。Further, as shown in FIG. 6, the end portion of the suspension belt 22 is folded back, and the folded U-turn portion 22a is projected downward from the pressing plate 14 of the suspension belt coupling means 10 to form a folded overlap portion. A U-turn portion 22a that holds and fixes 22b between the base plate 13 and the pressing plate 14, and projects downward from the pressing plate 14.
The bottom portion of the suspension is used as the detection target portion 17, and the actuator 18a of the detector 18 attached to the base plate 13 is engaged with the bottom portion of the detection belt 17 to suspend the suspension belt 2 from the suspension belt coupling means 10.
The upward movement of the bottom portion (detected portion 17) of the U-turn portion 22a when the upper portion 2 moves so as to be pulled out upward is detected by the detector 1
It can be configured to detect at 8. This configuration can be implemented even when the reinforcing wire 16 is not embedded in the suspension belt 22.
【００２４】なお、被検出部は上記各実施例で示したも
のに限定されない。例えば、吊下ベルト結合手段１０の
押さえプレート１４から上下方向に突出するベルト端部
に孔を設け、この孔を被検出部として利用することもで
きる。また、実施例では１本の吊下ベルト５，２０，２
２で昇降装置１，８を吊り下げているように図示した
が、実際には、吊下ベルト５，２０，２２を２本並列さ
せて昇降装置１，８を吊り下げるのが普通である。この
場合、吊下ベルト結合手段１０も各吊り下げベルトの端
部ごとに配設されるが、軸受部材１１は各吊下ベルト結
合手段１０ごとに配設しないで、１つの軸受部材１１に
２つの吊り下げベルト結合手段１０のベースプレート１
３の下端部を水平支軸１２で揺動可能に軸支しても良い
し、１つの軸受部材に１つの揺動板を水平支軸で揺動可
能に軸支し、この１つの揺動板に２つの吊り下げベルト
結合手段１０のベースプレート１３の下端部を水平支軸
１２で揺動可能に軸支しても良い。The detected part is not limited to those shown in the above embodiments. For example, it is also possible to provide a hole in the belt end portion protruding in the vertical direction from the pressing plate 14 of the hanging belt coupling means 10 and use this hole as the detected portion. Also, in the embodiment, one suspension belt 5, 20, 2 is used.
Although it is illustrated that the lifting devices 1 and 8 are suspended by 2, the lifting devices 1 and 8 are usually suspended by actually arranging two suspension belts 5, 20 and 22 in parallel. In this case, the suspension belt coupling means 10 is also provided at each end of each suspension belt, but the bearing member 11 is not provided for each suspension belt coupling means 10 and two bearing members 11 are provided. Base plate 1 of two hanging belt coupling means 10
The lower end of 3 may be pivotally supported by the horizontal support shaft 12, or one rocking plate may be pivotally supported by one horizontal support shaft on one bearing member. The lower ends of the base plates 13 of the two hanging belt coupling means 10 may be pivotally supported by the horizontal pivot 12 on the plate.
【００２５】[0025]
【発明の作用及び効果】以上のように本発明の昇降装置
の吊下ベルト弛み検出装置によれば、吊下ベルト(5) の
経年劣化でベルト本体に“へたり”が生じたり、吊下ベ
ルトが内蔵する補強用線材(16)とベルト本体との間に滑
りが生じるような事態が生じた場合、当該吊下ベルト
(5) の端部に設けられた被検出部(17)にアクチュエータ
(18a) が係合する検出器(18)により、当該事態を確実に
検出することができる。従って、この検出器(18)の検出
信号に基づいて必要な対策を講じることにより、上記の
ような事態を放置したために生じる昇降装置の落下事故
などを未然に回避することができる。As described above, according to the hanging belt slack detecting device for the hoisting device of the present invention, the belt main body is "settled" due to the deterioration of the hanging belt (5) over time, and the hanging belt (5) is suspended. In the event that a slip occurs between the reinforcing wire (16) built into the belt and the belt body, the suspension belt
Connect the actuator to the detected part (17) provided at the end of (5).
The detector (18) with which (18a) is engaged can reliably detect the situation. Therefore, by taking necessary measures on the basis of the detection signal of the detector (18), it is possible to avoid a fall accident of the lifting device caused by leaving the above situation unattended.
【００２６】なお、請求項２に記載の構成によれば、吊
下ベルト(22)が補強用線材(16)を内蔵しないタイプのも
のであっても、当該吊下ベルト(22)の折り返しU ターン
部(22a) を吊下ベルト結合手段(10)の押さえプレート(1
4)の下側に突出させて、これに検出器(18)のアクチュエ
ータ(18a) を係合させるだけで、吊下ベルト結合手段(1
0)に対する吊下ベルト(22)の滑りを確実に検出すること
ができる。According to the second aspect of the invention, even if the suspension belt (22) is of a type that does not contain the reinforcing wire (16), the folding belt U of the suspension belt (22) is folded back. Turn part (22a) to suspend belt (10) Hold plate (1)
4) Projecting to the lower side and engaging the actuator (18a) of the detector (18) with this, the suspension belt coupling means (1
The slip of the suspension belt (22) with respect to 0) can be reliably detected.
【００２７】また、請求項３に記載の構成によれば、吊
下ベルト(5) が内蔵する補強用線材(16)を利用して被検
出部(17)を形成することができ、別部品を吊下ベルト
(5) の端部に取付けるなどの方法により被検出部を構成
する場合と比較して、安価に実施することができる。特
に請求項４に記載のように、ベルト端部から突出する２
本の補強用線材(16a,16b) の遊端を互いに結合してルー
プ状の被検出部(17)を形成することにより、検出器(18)
のアクチュエータ(18a) を簡単且つ確実に被検出部(17)
に係合させることができる。Further, according to the third aspect of the present invention, the detected part (17) can be formed by utilizing the reinforcing wire (16) built in the suspension belt (5), which is a separate component. Hanging belt
This can be implemented at a low cost as compared with the case where the detected portion is formed by a method such as attaching to the end of (5). Particularly, as described in claim 4, 2 protruding from the belt end portion
By connecting the free ends of the reinforcing wires (16a, 16b) of the book to each other to form the loop-shaped detected part (17), the detector (18)
The actuator (18a) can be detected easily and securely in the detected part (17)
Can be engaged with.
【００２８】さらに請求項５に記載の構成によれば、タ
イミングベルト状の吊下ベルト(5)が使用されていて、
当該吊下ベルト(5) と吊下ベルト結合手段(10)との間で
は滑りが生じない状況においても、当該吊下ベルト(5)
が内蔵する補強用線材(16)とベルト本体との間に生じる
滑りを、補強用線材(16)で形成された被検出部(17)を利
用して検出器(18)により確実に検出することができる。Further, according to the structure of claim 5, the timing belt-shaped suspension belt (5) is used,
Even in the situation where no slippage occurs between the suspension belt (5) and the suspension belt coupling means (10), the suspension belt (5)
The slip between the reinforcing wire (16) built into the belt and the belt body is reliably detected by the detector (18) using the detected part (17) formed of the reinforcing wire (16). be able to.
【００２９】請求項６に記載の構成によれば、平ベルト
状の吊下ベルト(20)が使用されていている場合でも、当
該吊下ベルト(20)と吊下ベルト結合手段(10)との間の滑
りを、当該吊下ベルト(20)が内蔵する補強用線材(16)に
より形成された被検出部(17)を利用して検出器(18)によ
り確実に検出することができる。検出器(18)は昇降装置
(1,8) に取り付けても良いが、請求項７に記載のよう
に、吊下ベルト結合手段(10)のベースプレート(13)に取
付けることにより、当該ベースプレート(13)が支軸の周
りに揺動可能に取付けられていても、吊下ベルト側の被
検出部の運動を検出器で確実に検出することができる。According to the configuration of claim 6, even when the flat belt-shaped suspension belt (20) is used, the suspension belt (20) and the suspension belt coupling means (10) are The slip between them can be reliably detected by the detector (18) by using the detected part (17) formed by the reinforcing wire (16) built in the suspension belt (20). Detector (18) is a lifting device
Although it may be attached to the (1,8), the base plate (13) is attached to the base plate (13) of the hanging belt coupling means (10) so that the base plate (13) is attached around the support shaft as described in claim 7. Even if it is mounted so as to be swingable, the detector can reliably detect the motion of the detected portion on the hanging belt side.
【図１】 吊下ベルトの一使用例を示す昇降搬送装置
（ドロップリフター）の側面図である。FIG. 1 is a side view of an elevation conveyance device (drop lifter) showing an example of use of a hanging belt.
【図２】 Ａ図は本発明要部の一部縦断側面図であり、
Ｂ図は同一部切り欠き正面図である。FIG. 2 is a side view of a part of the main part of the present invention in vertical section,
FIG. 6B is a front view with the same portion cut away.
【図３】 吊下ベルトと吊下ベルト結合手段とを示す分
解平面図である。FIG. 3 is an exploded plan view showing a suspension belt and a suspension belt coupling means.
【図４】 Ａ図は図３の一部縦断側面図であり、Ｂ図は
吊下ベルトの正面図である。4 is a partially longitudinal side view of FIG. 3, and FIG. 4B is a front view of the suspension belt.
【図５】 第二実施例を示す一部縦断側面図である。FIG. 5 is a partially longitudinal side view showing a second embodiment.
【図６】 第三実施例を示す一部切り欠き正面図であ
る。FIG. 6 is a partially cutaway front view showing a third embodiment.
１ 昇降キャレッジ（昇降装置） ５ タイミングベルト状の吊下ベルト ５ａ 凹凸側面 ８ カウンターウエイト（昇降装置） １０ 吊下ベルト結合手段 １３ ベースプレート １３ａ 凹凸面 １４ 押さえプレート １５ ボルト １６ 補強用線材 １６ａ 被検出部を形成する補強用線材 １６ｂ 被検出部を形成する補強用線材 １７ 被検出部 １８ 検出器 １８ａ アクチュエータ １８ｂ 先端凹部 ２０ 平ベルト状の吊下ベルト ２０ａ 折り返しＵターン部 ２０ｂ 折り返し重なり部 ２１ 軸杆 ２２ 吊下ベルト ２２ａ 折り返しＵターン部 ２２ｂ 折り返し重なり部 DESCRIPTION OF SYMBOLS 1 Lifting carriage (lifting device) 5 Timing belt-shaped hanging belt 5a Uneven side surface 8 Counterweight (lifting device) 10 Hanging belt coupling means 13 Base plate 13a Uneven surface 14 Holding plate 15 Bolt 16 Reinforcing wire 16a Detected part Reinforcing wire to be formed 16b Reinforcing wire to form a detected part 17 Detected part 18 Detector 18a Actuator 18b Tip recess 20 Flat belt-shaped hanging belt 20a Folding U-turn part 20b Folding overlapping part 21 Shaft rod 22 Hanging Belt 22a Folded U-turn part 22b Folded overlapping part
Claims (7)
(5) と、検出器(18)とを有し、 吊下ベルト結合手段(10)は、昇降装置(1,8) に連結され
たベースプレート(13)と、このベースプレート(13)との
間で吊下ベルト(5) を挟持固定する押さえプレート(14)
とから成り、 吊下ベルト(5) は、吊下ベルト結合手段(10)で挟持固定
された側の端に被検出部(17)を有し、 検出器(18)は、昇降装置(1,8) 側に取付けられて、吊下
ベルト(5) の被検出部(17)と係合するアクチュエータ(1
8a) を有する昇降装置の吊下ベルト弛み検出装置。1. A suspension belt connecting means (10) and a suspension belt.
(5) and a detector (18), the suspension belt coupling means (10) is provided between the base plate (13) connected to the lifting device (1, 8) and the base plate (13). Holding plate (14) for holding and fixing the hanging belt (5) with
The suspension belt (5) has a detected part (17) at the end clamped and fixed by the suspension belt coupling means (10), and the detector (18) is a lifting device (1). , (8) side and engage with the detected part (17) of the suspension belt (5) (1
8a) Lifting device hanging belt slack detection device.
重なり部(22b) をベースプレート(13)と押さえプレート
(14)との間で挟持固定し、 吊下ベルトの被検出部(17)は、押さえプレート(14)の下
側に突出する吊下ベルトのＵターン部(22a) で形成され
ている請求項１に記載の昇降装置の吊下ベルト弛み検出
装置。2. The suspension belt (22) has an end folded back, and the suspension belt connecting means (10) holds the folding back overlapping portion (22b) of the suspension belt (22) to the base plate (13) and the pressing plate.
The portion to be detected (17) of the suspension belt, which is sandwiched and fixed to the (14), is formed by a U-turn portion (22a) of the suspension belt protruding below the holding plate (14). Item 2. A hanging belt slack detecting device for an elevating device according to Item 1.
補強用線材(16)をベルト巾方向に複数本内蔵するもの
で、被検出部(17)が、ベルト端部から突出する補強用線
材(16a,16b) により形成されている請求項１に記載の昇
降装置の吊下ベルト弛み検出装置。3. The suspending belt (5) comprises a plurality of reinforcing wire rods (16) parallel to the lengthwise direction thereof in the belt width direction. The hanging belt slack detecting device for an elevating device according to claim 1, wherein the hanging belt slack detecting device is formed of protruding reinforcing wire rods (16a, 16b).
端部から突出する２本の補強用線材(16a,16b) の遊端を
互いに結合して形成している請求項３に記載の昇降装置
の吊下ベルト弛み検出装置。4. The detected part (17) of the suspension belt (5) is formed by connecting the free ends of two reinforcing wire rods (16a, 16b) protruding from the belt end part to each other. Item 5. A hanging belt slack detecting device for an elevating device according to Item 3.
方向において凹凸状に形成されたタイミングベルトであ
り、 吊下ベルト結合手段(10)のベースプレート(13)には、吊
下ベルト(5) の凹凸側面(5a)に嵌合する凹凸面(13a) が
形成され、 吊下ベルト(5) の補強用線材(16a,16b) で形成された被
検出部(17)が押さえプレート(14)の下側に突出する請求
項３または４に記載の昇降装置の吊下ベルト弛み検出装
置。5. The suspension belt (5) is a timing belt whose one side surface (5a) is formed in a concavo-convex shape in the length direction, and the suspension belt coupling means (10) has a base plate (13) having , The uneven surface (13a) that fits into the uneven side surface (5a) of the hanging belt (5) is formed, and the detected part (17a) formed by the reinforcing wire (16a, 16b) of the hanging belt (5) ) Projects below the pressing plate (14), the hanging belt slack detecting device for the lifting device according to claim 3 or 4.
のＵターン部(20a) の内側にベルト巾方向に軸杆(21)が
挿通され、 吊下ベルト結合手段(10)は、前記軸杆(21)が押さえプレ
ート(14)の下側に隣接するように、吊下ベルトの折り返
し重なり部(20b) をベースプレート(13)と押さえプレー
ト(14)との間で挟持固定し、 吊下ベルトの補強用線材(16a,16b) で形成された被検出
部(17)が、押さえプレート(14)の上側に突出する請求項
３または４に記載の昇降装置の吊下ベルト弛み検出装
置。6. The suspension belt (20) has an end folded back, and an axial rod (21) is inserted inside the U-turn portion (20a) in the belt width direction to form a suspension belt coupling means (10). Holds the folded-back overlapping portion (20b) of the hanging belt between the base plate (13) and the pressing plate (14) so that the shaft rod (21) is adjacent to the lower side of the pressing plate (14). The hanging belt of the lifting device according to claim 3 or 4, wherein the detected portion (17) formed of the reinforcing wire (16a, 16b) of the hanging belt projects above the holding plate (14). Looseness detection device.
ベースプレート(13)に取付けられている請求項１〜６の
何れかに記載の昇降装置の吊下ベルト弛み検出装置。7. The hanging belt slack detecting device for a lifting device according to claim 1, wherein the detector (18) is attached to the base plate (13) of the hanging belt connecting means (10). .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19595594A JP3412270B2 (en) | 1994-07-27 | 1994-07-27 | Detecting device for slack of suspension belt of lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19595594A JP3412270B2 (en) | 1994-07-27 | 1994-07-27 | Detecting device for slack of suspension belt of lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0840669A true JPH0840669A (en) | 1996-02-13 |
| JP3412270B2 JP3412270B2 (en) | 2003-06-03 |
Family
ID=16349760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19595594A Expired - Fee Related JP3412270B2 (en) | 1994-07-27 | 1994-07-27 | Detecting device for slack of suspension belt of lifting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3412270B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002534644A (en) * | 1998-12-31 | 2002-10-15 | オーチス エレベータ カンパニー | Wedge clamp type termination for elevator tension members. |
| JP2002326047A (en) * | 2001-05-01 | 2002-11-12 | Ricoh Co Ltd | Coating apparatus and method and apparatus for manufacturing electrophotographic photoreceptor |
| JP2003520172A (en) * | 2000-01-21 | 2003-07-02 | オーチス エレベータ カンパニー | Self-locking wrap termination for tension members |
| US6820726B1 (en) * | 1998-12-22 | 2004-11-23 | Otis Elevator Company | Traction enhanced controlled pressure flexible flat tension member termination device |
| EP1710194A3 (en) * | 1998-02-26 | 2008-11-26 | Otis Elevator Company | Cable connecting device |
| WO2010120342A1 (en) * | 2009-04-14 | 2010-10-21 | The Gates Corporation | Belt clamp |
| KR20170063917A (en) | 2014-10-31 | 2017-06-08 | 미쓰보 시베루토 가부시키 가이샤 | Flat belt, belt mechanism, belt lifting mechanism, attachment method, and method for manufacturing flat belt |
-
1994
- 1994-07-27 JP JP19595594A patent/JP3412270B2/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1710194A3 (en) * | 1998-02-26 | 2008-11-26 | Otis Elevator Company | Cable connecting device |
| US7886878B2 (en) | 1998-12-22 | 2011-02-15 | Otis Elevator Company | Traction enhanced controlled pressure flexible flat tension member termination device |
| US6820726B1 (en) * | 1998-12-22 | 2004-11-23 | Otis Elevator Company | Traction enhanced controlled pressure flexible flat tension member termination device |
| JP2002534644A (en) * | 1998-12-31 | 2002-10-15 | オーチス エレベータ カンパニー | Wedge clamp type termination for elevator tension members. |
| JP4741730B2 (en) * | 1998-12-31 | 2011-08-10 | オーチス エレベータ カンパニー | Wedge clamp type termination device for elevator tension members |
| JP2011158095A (en) * | 1998-12-31 | 2011-08-18 | Otis Elevator Co | Wedge/socket termination device, tension clamp, and elevator system |
| USRE47035E1 (en) | 1998-12-31 | 2018-09-11 | Otis Elevator Company | Wedge clamp type termination for elevator tension member |
| JP2003520172A (en) * | 2000-01-21 | 2003-07-02 | オーチス エレベータ カンパニー | Self-locking wrap termination for tension members |
| JP4861589B2 (en) * | 2000-01-21 | 2012-01-25 | オーチス エレベータ カンパニー | Self-locking wrap termination device for tension members |
| JP2002326047A (en) * | 2001-05-01 | 2002-11-12 | Ricoh Co Ltd | Coating apparatus and method and apparatus for manufacturing electrophotographic photoreceptor |
| WO2010120342A1 (en) * | 2009-04-14 | 2010-10-21 | The Gates Corporation | Belt clamp |
| KR20170063917A (en) | 2014-10-31 | 2017-06-08 | 미쓰보 시베루토 가부시키 가이샤 | Flat belt, belt mechanism, belt lifting mechanism, attachment method, and method for manufacturing flat belt |
| US10088023B2 (en) | 2014-10-31 | 2018-10-02 | Mitsuboshi Belting Ltd. | Flat belt, belt mechanism, belt lifting mechanism, attachment method, and method for manufacturing flat belt |
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| Publication number | Publication date |
|---|---|
| JP3412270B2 (en) | 2003-06-03 |
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