JPH036732B2

JPH036732B2 -

Info

Publication number: JPH036732B2
Application number: JP58170267A
Authority: JP
Inventors: Michio Suzuki
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-09-14
Filing date: 1983-09-14
Publication date: 1991-01-30
Also published as: JPS6062922A

Description

【発明の詳細な説明】本発明は温室の内部被覆装置において駆動モー
タに一定以上の負荷がかかつたときに該駆動モー
タを停止させる安全装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safety device for stopping a drive motor in an internal coating system for a greenhouse when a load exceeding a certain level is applied to the drive motor.

メロン等の温室においては、保温性、採光性等
のために、温室内部を更にフイルムで開閉自在に
被覆する内部被覆装置が使用されている。すなわ
ち、このものは夜間等においては温室の内側のフ
イルムを全閉して温室をいわば二重構造とするこ
とにより保温性を確保し、日中においては内側の
フイルムを開いて採光を図るようにしたものであ
る。 In greenhouses for growing melons and the like, an internal covering device is used in which the inside of the greenhouse is further covered with a film that can be opened and closed for heat retention, lighting, and the like. In other words, at night, the film on the inside of the greenhouse is completely closed, making the greenhouse a so-called double structure to ensure heat retention, and during the day, the film on the inside is opened to let in sunlight. This is what I did.

上記フイルムは、その一縁を温室内に設けたフ
レームの所定位置に固定し、他縁をフレーム上の
可動バーに固定し、該可動バーをワイヤを介して
駆動モータによりフレーム上にて動かすことによ
りフイルムの開閉を行なうようにしている。しか
して、例えばフイルムのからみその他の原因によ
りフイルムの円滑な移動が妨げられた状態で駆動
モータが回転し続けるとフイルム、ワイヤ等が破
損しあるいは駆動モータが焼付くおそれがある。 One edge of the film is fixed to a predetermined position on a frame provided in the greenhouse, the other edge is fixed to a movable bar on the frame, and the movable bar is moved on the frame by a drive motor via a wire. The film is opened and closed using the following steps. If the drive motor continues to rotate while smooth movement of the film is hindered due to film entanglement or other causes, for example, the film, wires, etc. may be damaged or the drive motor may seize.

そこで、本発明はフイルムのからみその他の原
因により駆動モータに一定以上の負荷がかかつた
ときに直ちにこれを検知して駆動モータを停止さ
せる安全装置を提供するものである。 SUMMARY OF THE INVENTION Therefore, the present invention provides a safety device that immediately detects when a load exceeding a certain level is applied to the drive motor due to film entanglement or other causes and immediately stops the drive motor.

以下、本発明を図示の実施例に基いて具体的に
説明する。 Hereinafter, the present invention will be specifically explained based on illustrated embodiments.

符号１は温室、２は内部被覆装置、３は内部被
覆装置のフレーム、４，４′は内部被覆装置にお
けるフイルムの一縁を固定したフレーム上の可動
バー、５はワイヤ６を介して可動バー４，４′を
移動させる駆動モータである。第１図に示す事例
においては、可動バー４，４′はそれぞれ矢印Ａ，
Ｂに示す如く相反する方向に同時に移動すること
によりフイルムを開閉するようにしている。ま
た、駆動モータ５は一例としてギヤドモータと
し、チエーン７を介してドラム軸８を回転させる
ようにし、該ドラム軸８には駆動ドラム９を取り
付け、該駆動ドラム９に前記ワイヤ６を巻き掛け
る。10はチエーンケースである。 1 is a greenhouse, 2 is an internal coating device, 3 is a frame of the internal coating device, 4 and 4' are movable bars on the frame to which one edge of the film in the internal coating device is fixed, and 5 is a movable bar via a wire 6. 4 and 4'. In the case shown in FIG. 1, the movable bars 4, 4' are respectively
As shown in B, the film is opened and closed by simultaneously moving in opposite directions. The drive motor 5 is, for example, a geared motor, which rotates a drum shaft 8 via a chain 7. A drive drum 9 is attached to the drum shaft 8, and the wire 6 is wound around the drive drum 9. 10 is a chain case.

しかして、本発明においては、駆動モータ５の
出力軸１１には、周縁に180゜の間隔を置いて駆動
突起１２，１２を突設したカラー１３（第１２，
１３図）を固定すると共に、前後両面にそれぞれ
180゜の間隔を置いて伝動突起１４，１４，１５，
１５（１４′，１４′，１５′，１５′）を突設した
一対の略〓状の伝動部材１６，１６′（第９〜１
２図）を前後に相隣接させた状態で該出力軸１１
に対し回転自在に取り付け、駆動モータ５が回転
したときにカラー１３の駆動突起１２，１２が一
方の伝動部材１６′の後面に突設した伝動突起１
４′，１４′に当接して駆動モータ５の回転を当該
一方の伝動部材１６′に伝えるようになし、両伝
動部材１６，１６′を、180゜の間隔で配設したば
ね１７，１７′により、当該両伝動部材１６，１
６′が正面から見て常時略円形になるように、相
互に連結して一方の伝動部材の回転が該ばね１
７，１７′を介して他方の伝動部材に伝達される
ようになし、各伝動部材１６，１６′における各
ばね１７，１７′に対応する縁端部を切り欠くこ
とにより両伝動部材１６，１６′における各ばね
１７，１７′に対応する接続部に切り欠き部１８，
１８′を形成する。更に、駆動モータ５の出力軸
１１には、前記伝動部材１６，１６′前面の伝動
突起１５，１５，１５′，１５′対応する伝動突起
１９，１９を180゜の間隔で具えたスプロケツト等
の駆動ホイール２０を（第１５，１６図）を該出
力軸１１に対し回転自在に取り付け、前記一方の
伝動部材１６′によりばね１７，１７を介して他
方の伝動部材１６が回転されるとき当該他方の伝
動部材１６前面の伝動突起１５，１５が駆動ホイ
ール２０の伝動突起１９，１９に当接して該駆動
ホイール２０を回転させるようになす。 According to the present invention, the output shaft 11 of the drive motor 5 has a collar 13 (a twelfth,
(Fig. 13), and fix them on both the front and rear sides.
Transmission protrusions 14, 14, 15, at intervals of 180°,
15 (14', 14', 15', 15') protrudingly provided as a pair of approximately square-shaped transmission members 16, 16'
2) are placed adjacent to each other in the front and rear, and the output shaft 11
The transmission protrusion 1 is rotatably attached to the drive motor 5, and when the drive motor 5 rotates, the drive protrusions 12, 12 of the collar 13 protrude from the rear surface of one of the transmission members 16'.
4', 14' to transmit the rotation of the drive motor 5 to the one transmission member 16', and the springs 17, 17' are arranged at an interval of 180° between the two transmission members 16, 16'. Accordingly, both the transmission members 16, 1
6' are always approximately circular when viewed from the front, so that the rotation of one of the transmission members
7, 17' to the other transmission member, and by cutting out the edge portion of each transmission member 16, 16' corresponding to each spring 17, 17', both transmission members 16, 16 A notch 18 is provided at the connection portion corresponding to each spring 17, 17' at .
18'. Furthermore, the output shaft 11 of the drive motor 5 is equipped with a sprocket or the like having transmission protrusions 19, 19 at an interval of 180 degrees corresponding to the transmission protrusions 15, 15, 15', 15' on the front surface of the transmission members 16, 16'. A drive wheel 20 (FIGS. 15 and 16) is rotatably attached to the output shaft 11, and when the other transmission member 16 is rotated by the one transmission member 16' via the springs 17, 17, the other transmission member 16 is The transmission protrusions 15, 15 on the front surface of the transmission member 16 contact the transmission protrusions 19, 19 of the drive wheel 20 to rotate the drive wheel 20.

一方、前記伝動部材１６，１６′の近傍には、
該伝動部材１６，１６′の周縁に当接するローラ
２１，２１′をそれぞれ先端に回転自在に装着し
たアーム２２，２２′を枢着し、アーム２２，２
２′に取り付けたばね２３により各アーム２２，
２２′のローラ２１，２１′を常時伝動部材１６，
１６′の周縁に押し付けるようにする。また、タ
イマー（図示せず）がその設定時間以上の時間に
わたつてONになつたときに駆動モータ５を停止
させるようにした公知の電気回路（図示せず）を
設けると共に、前記各アーム２２，２２′の近傍
には、ローラ２１（２１′）が伝動部材１６，１
６′の切り欠き部１８（１８′）に入り込み該アー
ム２２（２２′）が伝動部材１６（１６′）の方向
に傾動することにより作動してタイマーをONに
し、ローラ２１（２１′）が該切り欠き部１８
（１８′）から出て該アーム２２（２２′）が元の
位置に戻ることによりタイマーをOFFにするタ
イマー作動スイツチ２４，２４′を設ける。なお、
タイマーは切換スイツチを介して２個並設し、一
方は駆動モータ５を正転させてフイルムを閉じる
ときに使用し、他方は駆動モータ５を逆転させて
フイルムを開くときに使用するのが望ましい。 On the other hand, near the transmission members 16, 16',
Arms 22, 22' each having a rotatably mounted roller 21, 21' at the tip thereof, which abuts on the periphery of the transmission member 16, 16', are pivotally mounted.
Each arm 22,
The rollers 21, 21' of 22' are constantly connected to the transmission member 16,
Make sure to press it against the periphery of 16'. In addition, a known electric circuit (not shown) is provided to stop the drive motor 5 when a timer (not shown) is turned on for a time equal to or longer than the set time, and each of the arms 22 , 22', a roller 21 (21') is connected to the transmission member 16, 1
The arm 22 (22') enters the notch 18 (18') of the arm 6' and tilts in the direction of the transmission member 16 (16'), which activates the timer and turns the roller 21 (21') on. The cutout portion 18
(18') and the arm 22 (22') returns to its original position to turn off the timer. In addition,
It is preferable that two timers be installed in parallel via a changeover switch, one of which is used when the drive motor 5 is rotated in the forward direction to close the film, and the other is used when the drive motor 5 is rotated in the reverse direction and the film is opened. .

次に本発明の作用について説明する。まず、内
部被覆装置２におけるフイルムを開くに当り、駆
動モータ５を例えば第４図における時計方向に回
転させたときには、駆動モータ５の出力軸１１に
固定したカラー１３の駆動突起１２，１２が一方
の伝動部材１６′に突設した伝動突起１４′，１
４′に当接し、駆動モータ５の回転を一方の伝動
部材１６′に伝える（第７図参照）。ところで、両
伝動部材１６，１６′はばね１７，１７′により相
互に連結されているため、一方の伝動部材１６′
の回転はばね１７，１７′を介して他方の伝動部
材１６に伝えられる。すなわち、他方の伝動部材
１６はばね１７、１７′を介して一方の伝動部材
１６′により引かれた状態で回転する。このよう
にして他方の伝動部材１６が回転すると、その伝
動突起１５，１５が駆動ホイール２０の伝動突起
１９，１９に当接し、伝動部材１６の回転が駆動
ホイール２０に伝えられる（第７図参照）。駆動
ホイール２０が回転すると、チエーン７を介して
ドラム軸８の駆動ドラム９が回転し、ワイヤ６が
移動する。従つて、フイルムの一縁を固定した可
動バー４、４′が所定の方向に動いてフイルムを
開く。 Next, the operation of the present invention will be explained. First, when opening the film in the internal coating device 2, when the drive motor 5 is rotated, for example, clockwise in FIG. Transmission protrusions 14', 1 protruding from the transmission member 16' of
4' and transmits the rotation of the drive motor 5 to one transmission member 16' (see FIG. 7). By the way, since both transmission members 16, 16' are mutually connected by springs 17, 17', one transmission member 16'
The rotation is transmitted to the other transmission member 16 via springs 17, 17'. That is, the other transmission member 16 rotates while being pulled by one transmission member 16' via the springs 17, 17'. When the other transmission member 16 rotates in this manner, its transmission protrusions 15, 15 come into contact with the transmission protrusions 19, 19 of the drive wheel 20, and the rotation of the transmission member 16 is transmitted to the drive wheel 20 (see FIG. 7). ). When the drive wheel 20 rotates, the drive drum 9 of the drum shaft 8 rotates via the chain 7, and the wire 6 moves. Therefore, the movable bars 4, 4' to which one edge of the film is fixed move in a predetermined direction to open the film.

内部被覆装置２が正常に作動している場合で
も、伝動部材１６，１６′の回転中、各アーム２
２，２２′のローラ２１，２１′は切り欠き部１
８，１８′に入るため、タイマー作動スイツチ２
４，２４′はその都度タイマーを作動させる。し
かしながら、内部被覆装置２がスムーズに作動し
ている場合には伝動部材１６，１６′を相互に連
結しているばね１７，１７′が大きい力を受けて
伸びることはなく、各切り欠き部１８，１８′が
小さな状態に保持される。従つて、各ローラ２
１，２１′が各切り欠き部１８，１８′に入り、タ
イマーがONになつている時間は極めて短いので
（第４図）、タイマーの設定時間をこれよりも長く
しておけば駆動モータ５が停止することはない。 Even when the internal coating device 2 is operating normally, each arm 2 is
The rollers 21, 21' of 2, 22' are in the notch part 1
8, 18', timer operation switch 2
4 and 24' activate the timer each time. However, when the inner covering device 2 is operating smoothly, the springs 17, 17' interconnecting the transmission members 16, 16' do not stretch under large forces, and each notch 18 , 18' are kept small. Therefore, each roller 2
1 and 21' enter the respective notches 18 and 18', and the time that the timer is ON is extremely short (Fig. 4), so if the timer setting time is longer than this, the drive motor 5 never stops.

ところが、フイルムのからみその他の原因によ
りフイルムの円滑な移動が妨げられた場合には、
伝動部材１６，１６′を相互に連結しているばね
１７，１７′が大きな力を受けて伸びるので各切
り欠き部１８，１８′が拡大される（第８図参
照）。従つて、一方のアーム２２（２２′）のロー
ラ２１（２１′）がいずれか一方の切り欠き部１
８（１８′）に入つたときには、タイマーがON
になつている時間が長くなる。この時間がタイマ
ーの設定時間よりも長ければ駆動モータ５が停止
する。従つて、タイマーを適宜設定しておけば、
フイルムのからみ等が生じた場合には、いずれか
一方のアームのローラ２１（２１′）がいずれか
の切り欠き部１８（１８′）に最初に入つたとき
に駆動モータ５は停止する。 However, if smooth movement of the film is hindered due to film entanglement or other causes,
The springs 17, 17' interconnecting the transmission members 16, 16' are stretched under a large force, so that each cutout 18, 18' is enlarged (see FIG. 8). Therefore, the roller 21 (21') of one arm 22 (22') is connected to one of the notches 1.
When it reaches 8 (18'), the timer turns on.
It takes a long time to get used to it. If this time is longer than the time set on the timer, the drive motor 5 is stopped. Therefore, if you set the timer appropriately,
If the film becomes entangled, the drive motor 5 stops when the roller 21 (21') of either arm first enters any of the notches 18 (18').

また、内部被覆装置２におけるフイルムを閉じ
るに当り、駆動モータ５を例えば第４図における
反時計方向に回転させた場合の作用も上記と同じ
である。 Further, when closing the film in the internal coating device 2, the operation is the same as described above when the drive motor 5 is rotated, for example, in the counterclockwise direction in FIG. 4.

以上説明したように、本発明によれば、フイル
ムのからみその他の原因により内部被覆装置が円
滑に作動せず、駆動モータに一定以上の負荷がか
かつたときには、安全装置が直ちにこれを検知し
て駆動モータを停止させるので、フイルム、ワイ
ヤ等の破損、駆動モータの焼付き等は確実に防止
される。また、タイマーの設定時間又は各伝動部
材１６，１６′を相互に連結するばね１７，１
７′の強さを変更することにより、安全装置とし
ての感度を調節することもできる。 As explained above, according to the present invention, when the internal coating device does not operate smoothly due to film entanglement or other causes and a load exceeding a certain level is applied to the drive motor, the safety device immediately detects this. Since the drive motor is stopped, damage to the film, wires, etc. and seizure of the drive motor are reliably prevented. Also, the setting time of the timer or the springs 17, 1 which interconnect each transmission member 16, 16'
By changing the strength of 7', the sensitivity as a safety device can also be adjusted.

[Brief explanation of drawings]

第１図は温室の内部被覆装置を示す側面図、第
２図は本発明の安全装置の取り付け状態を示す斜
視図、第３図は本発明の安全装置の平面図、第４
図は同上の正面図、第５図は同上の側面図、第６
図は第３図−線における断面図、第７図は第
３図−線における断面図、第８図は同上安全
装置の作動状態を示す正面図、第９図は伝動部材
１６の正面図、第１０図は同上の側面図、第１１
図は他の伝動部材１６′の正面図、第１２図は同
上の側面図、第１３図は駆動モータの出力軸に取
り付けたカラーを示す正面図、第１４図は同上の
側面図、第１５図は駆動ホイールの一例としての
スプロケツトを示す正面図、第１６図は同上の側
面図である。１……温室、２……内部被覆装置、３……フレ
ーム、４，４′……可動バー、５……駆動モータ、
６……ワイヤ、７……チエーン、８……ドラム
軸、９……駆動ドラム、１０……チエーンケー
ス、１１……出力軸、１２……駆動突起、１３…
…カラー、１４，１５，１４′，１５′……伝動突
起、１６，１６′……伝動部材、１７，１７′……
ばね、１８，１８′……切り欠き部、１９……伝
動突起、２０……駆動ホイール、２１，２１′…
…ローラ、２２，２２′……アーム、２３……ば
ね、２４，２４′……タイマー作動スイツチ。 Fig. 1 is a side view showing the internal covering device of a greenhouse, Fig. 2 is a perspective view showing the installed state of the safety device of the present invention, Fig. 3 is a plan view of the safety device of the present invention, and Fig. 4 is a side view showing the internal coating device of the greenhouse.
The figure is a front view of the same as above, Figure 5 is a side view of the same as above, and Figure 6 is a side view of the same as above.
The figure is a sectional view taken along the line of FIG. 3, FIG. 7 is a sectional view taken along the line of FIG. 3, FIG. 8 is a front view showing the operating state of the safety device, and FIG. Figure 10 is a side view of the same as above, Figure 11
The figure is a front view of another transmission member 16', FIG. 12 is a side view of the same as above, FIG. 13 is a front view showing the collar attached to the output shaft of the drive motor, FIG. 14 is a side view of the same as above, and FIG. The figure is a front view showing a sprocket as an example of a drive wheel, and FIG. 16 is a side view of the same. DESCRIPTION OF SYMBOLS 1... Greenhouse, 2... Inner coating device, 3... Frame, 4, 4'... Movable bar, 5... Drive motor,
6... Wire, 7... Chain, 8... Drum shaft, 9... Drive drum, 10... Chain case, 11... Output shaft, 12... Drive protrusion, 13...
... Collar, 14, 15, 14', 15'... Transmission protrusion, 16, 16'... Transmission member, 17, 17'...
Spring, 18, 18'... Notch, 19... Transmission protrusion, 20... Drive wheel, 21, 21'...
...Roller, 22, 22'...Arm, 23...Spring, 24, 24'...Timer operation switch.

Claims

[Claims]

1. In the internal coating device for a greenhouse, a collar 13 having drive protrusions 12, 12 protruding from the periphery is fixed to the output shaft 11 of the drive motor 5, and transmission protrusions 15, 15, 14, 14 are provided on both front and rear surfaces, respectively. ,1
Abbreviation for a pair with protruding 5', 15', 14', 14'
Transmission members 16, 16' shaped like the above are rotatably attached to the output shaft 11 in a state where they are adjacent to each other in the front and back,
When the drive motor 5 rotates, the drive protrusions 12, 12 of the collar 13 come into contact with the transmission protrusions 14', 14' protruding from the rear surface of one transmission member 16', and the rotation of the drive motor 5 is transferred to the transmission member 16'. The transmission members 16, 16' are connected to the spring 1.
7 and 17', the two transmission members are interconnected so that they always form a substantially circular shape when viewed from the front, and the rotation of one transmission member is transmitted to the other transmission member via the springs 17 and 17'. so that each transmission member 1
By cutting out the edge portions corresponding to the respective springs 17, 17' in 6, 16, notches 18, 1 are formed in the connecting portions corresponding to the respective springs in both transmission members.
8' and further provided with transmission protrusions 19, 19 corresponding to the transmission protrusions 15, 15, 15', 15' on the front surface of the transmission members 16, 16'.
is rotatably attached to the output shaft 11 of the drive motor 5, and the spring 1 is rotated by the one transmission member 16'.
When the other transmission member 16 is rotated via 7, 17, the transmission protrusion 1 on the front surface of the other transmission member 16
5 and 15 are transmission protrusions 19 and 1 of the drive wheel 20
9 to rotate the drive wheel 20, and near the transmission members 16, 16' there are rollers 21, 21' that contact the peripheral edges of the transmission members.
Arm 2 with a rotatably attached to the tip of each
2 and 22' are pivotally connected, and springs attached to the arms 22 and 22' constantly press the rollers of each arm against the periphery of the transmission members 16 and 16'. A timer operation switch that turns the timer ON when the arm enters the cutout and tilts in the direction of the transmission member, and turns the timer OFF when the roller comes out of the cutout and the arm returns to its original position. 24, 24' are provided, and the drive motor 5 is stopped when the timer is turned on for a time longer than the set time.