JP4864604B2 - Electric shutter clutch operation wire mounting structure - Google Patents

Description

The present invention relates to a structure for attaching a clutch operation wire of an electric shutter.

The shutter of the electric shutter is equipped with a clutch mechanism, and the shutter can be manually operated by releasing the clutch in the event of a power failure. Conventionally, the clutch is released by pulling one clutch operation wire (Patent Documents 1 and 2). Since one clutch operation wire also serves as a clutch return wire, It was unclear whether the clutch was in a disengaged state or in a restored state simply by looking at.

Here, it is considered that the clutch wire is composed of two wires, a clutch release wire and a clutch return wire. However, if two wires are used, the two wires are easily entangled during operation. There is a problem of becoming.
No. 7-52316 JP 2001-342781

The present invention provides an attachment structure for a clutch operation wire that prevents the wires from becoming entangled and enables smooth wire operation while using two wires, a clutch release wire and a clutch return wire. It is intended to do.

The technical means employed by the present invention in order to achieve such a problem is an attachment structure of a clutch operation wire of an electric shutter, and the clutch operation wire is composed of two wires, a release wire and a return wire. And the base ends of the two wires are connected to a clutch release / return mechanism of an opening / closing machine built in the winder that winds up the shutter curtain, and on the peripheral surface of the shaft of the winder, Two independent insertion holes are formed, and an outer cable having two independent insertion portions is extended in the length direction of the shaft in the shaft. It is guided from the end in a direction perpendicular to the length direction of the shaft and in a direction opposite to it, and is guided into the shaft through each of the two insertion holes. Extends out by inserting the each of the two insertion portions, the distal end of the two wires are drawn from the shaft end, a mounting structure, the clutch operating wire. In one aspect, the two insertion holes are insertion holes formed in a bush embedded in the shaft peripheral wall. In one embodiment, the release wire and the return wire are formed by folding back one wire, and the folded portion constitutes the proximal ends of the release wire and the return wire. Each wire drawn from the shaft end is further drawn to the outside (on the side and bottom surface) of the shutter case.

In one aspect, the two independent insertion holes are juxtaposed in the longitudinal direction of the shaft.

In one aspect, the said insertion hole is a long hole extended in the direction orthogonal to the length direction of a shaft.

The present invention can be widely applied to a clutch release / return mechanism using two wires, a release wire and a return wire.

Since the release wire and the return wire are pulled out to the outside through the independent insertion hole and insertion portion, respectively, the wires can be prevented from getting entangled during the operation of the wire.

When the proximal ends of the two wires are guided in a direction perpendicular to the length direction of the shaft and in a direction opposite to each other, the two independent insertion holes are arranged in parallel in the length direction of the shaft. By doing so, the crossing of the wires can be prevented. Furthermore, the insertion hole is a long hole extending in a direction perpendicular to the longitudinal direction of the shaft, so that the movement trajectory of the wire and the longitudinal direction of the insertion hole coincide with each other, so that the influence of refraction of the wire during wire operation can be reduced. Can be reduced.

In the case where the two insertion holes are formed from the insertion holes formed in the bush embedded in the shaft peripheral wall, the bush may be embedded in one hole provided in the shaft peripheral wall. Processing is easier than when forming. In particular, in a preferred aspect of the present invention, since two long holes extending in a direction perpendicular to the length direction of the shaft are arranged in parallel in the length direction to form an insertion hole, this is formed directly on the peripheral wall of the shaft. It is more advantageous to use a bush having an insertion hole than in the case.

FIG. 1 is a front view of a three-piece electric shutter, and three shutter devices are provided in a building opening. Guide rails G1 and G2 are erected at the left and right ends of the building opening, and the building opening is formed by two middle pillars having guide rails G3, G4, G5 and G6 formed on both sides, respectively. , Is divided into three in the width direction. The three shutter curtains 1 open and close their openings, with the end portions in the width direction guided by the guide rails G1 and G3, the guide rails G4 and G5, and the guide rails G6 and G2, respectively.

A winding body 2 around which the shutter curtain 1 is wound is installed above the opening. The winding body 2 includes a cylindrical shaft 20 that extends in the width direction of the shutter curtain 1, a wheel 21 that is externally mounted on the shaft 20, and a stay 22 that connects the wheels 21. An opening / closing machine 3 is mounted on the shaft 20 of the winding body 2, and the outer shape of the opening / closing machine 3 is smaller than the outer dimension of the winding body 2, and the opening / closing machine 3 is built in the winding body 2. ing.

The opening / closing machine 3 includes a brake unit 30, a motor unit 31, a gear unit 32, a clutch unit 33, and a casing 34 that houses these components. The rotation of the motor shaft 310 of the motor unit 31 is transmitted to the outer wheel 35 via the gear unit 32 and the clutch unit 33, and the winding body 2 rotates as the outer wheel 35 rotates. Various wirings (power supply, signal transmission / reception) of the switch 3 extend in the shaft 20 of the winding body 2 and are drawn out from one end of the shaft 20 and electrically connected to the power source and the switching control unit as appropriate. Has been. The casing 34 of the switch 3 has a substantially semi-cylindrical shape, and the inner peripheral surface of the casing 34 has a shape corresponding to the outer peripheral surface of the shaft 20. The shaft 20 is mounted by a fastening member 340 that is rotatably provided. A convex portion 340 a is formed at a predetermined portion of the inner peripheral surface of the fastening member 340, and is fitted into a concave portion formed at a predetermined portion of the outer peripheral surface of the shaft 20.

The clutch portion 33 is provided between the gear portion 32 and the outer wheel 35, and the clutch portion 33 is released / returned by a clutch release / return mechanism that releases / returns the clutch. In normal times, the clutch portion 33 is effective, and the rotation of the motor shaft 310 is transmitted to the winding body 2 via the outer wheel 35. When the clutch is released, the transmission of the rotation of the motor shaft 310 to the outer wheel 35 is cut off. When the clutch is released, the shutter can be manually operated.

The clutch release / return mechanism has a rod 36 that extends in the length direction of the opening / closing machine 3 and that can move (reciprocate) in the length direction. When the rod 36 moves to the distal end side from the clutch return state shown in FIG. 5, the clutch is released, and when the rod 36 moves to the proximal end side, the clutch return state is restored. Since the configuration of the clutch release / return mechanism itself is not directly related to the gist of the present invention, a detailed description of the clutch release / return mechanism is omitted. The configuration for moving the rod 36 will be described in detail below.

A protrusion 361 is integrally attached to the distal end side of the rod 36, and the protrusion 361 is guided in the length direction of the rod and moves (reciprocates), whereby the rod 36 moves in the length direction ( Reciprocating). A protrusion 39 is formed on the front end side of the casing 34 of the switch 3. The protrusion 39 has a substantially cylindrical shape, but gradually decreases in diameter toward the tip. A first rotator 390 and a second rotator 391 that rotates according to the rotation of the first rotator 390 are rotatably provided to the protrusion 39. A guide groove 391a for guiding the protrusion 361 in the length direction of the rod 36 as the second rotating body 391 rotates is formed on the peripheral surface of the second rotating body 391, and the first rotating body 390 is rotated. Thus, the rod 36 moves in the length direction.

On the outer peripheral surface of the first rotating body 390, a groove portion 390a constituting a connecting portion for connecting the operation wire 4 is formed. The operation wire 4 has a sleeve 5 fixed to an intermediate portion in the length direction of one wire. One of the operation wires 4 is a release wire 40 and the other is a return wire 41 across the sleeve 5. By fitting the sleeve 5 of the operation wire 4 into the groove portion 390a, the operation wire 4 and the first rotating body 390 are connected. Further, by using a lever 392 mounted on the first rotating body 390 so as to sandwich the sleeve 5 from above and below, and a spring 393 provided between the lever 392 and the second rotating body 391, the sleeve 5 is prevented from coming off. Is going. The sleeve 5 constitutes the proximal ends of the release wire 40 and the return wire 41. The release wire 40 and the return wire 41 are each drawn out in a direction orthogonal to the length direction of the shaft 20, that is, in the circumferential direction (rotation direction) of the first rotating body 390 and in the opposite direction. Yes. When the first rotating body 390 rotates in one direction (release direction) by pulling the release wire 40, the protrusion 361 is guided to move in the distal end side direction of the rod 36, and the rod 36 moves toward the distal end side. When the first rotating body 390 rotates in the other direction (return direction) by pulling the return wire 41, the protrusion 361 is guided to move toward the proximal end side of the rod 36, and the rod 36 moves toward the proximal end side. To do.

A bush mounting hole 200 is formed on the peripheral surface of the shaft 20 so as to penetrate the peripheral wall, and the bush 6 is fitted into the bush mounting hole 200 (see FIG. 9). Details of the bush 6 are shown in FIG. Two independent insertion holes 60, 61 are formed in the bush 6, and the insertion holes 60, 61 of the bush 6 are inserted into the mounting holes 200 formed in the peripheral surface of the shaft 20. Two insertion holes penetrating 20 peripheral walls are formed. One of the release wire 40 and the return wire 41 is led into the shaft 20 through the insertion hole 60 and the other through the insertion hole 61. The two independent insertion holes 60 and 61 are juxtaposed in the length direction of the shaft 20 (see FIGS. 8A and 8B). The two independent insertion holes 60 and 61 are long holes extending in a direction orthogonal to the length direction of the shaft 20. The release wire 40 and the return wire 41 are drawn in a direction orthogonal to the length direction of the shaft 20 (see FIG. 12). The length direction of the two independent insertion holes 60 and 61 is the release wire. 40, which coincides with the movement trajectory of the return wire 41, and the pulling operation of the release wire 40 and the return wire 41 can be performed smoothly. The two insertion holes 60 and 61 are independent by the partition wall 62, and the two wires 40 and 41 do not intersect in the insertion holes 60 and 61. A lower end 620 of the partition wall 62 protrudes downward from the insertion holes 60 and 61.

The wires 40 and 41 inserted into the shaft 20 through the insertion holes 60 and 61 of the bush 6 are provided in the shaft 20 and are inserted through the outer cable 7 extending in the length direction of the shaft 20, so that the shaft 20 Led out from the end of the. The outer cable 7 has two independent insertion portions 70 and 71, and the two wires 40 and 41 are not entangled in the shaft 20. In addition, the color marker 410 is attached to one of the wires (return wire 41 in the drawing) to prevent the two wires 40 and 41 from being confused at the time of attachment.

The release wire 40 and the return wire 41 extend through the shaft 20 of the winding body 2, and the distal ends of the release wire 40 and the return wire 41 are drawn out from the end of the shaft 20. The side surface 60 is pulled out to the outside, and the clutch can be released and returned from the outside. A cylinder part that can be freely inserted into and removed from the cylindrical part formed on the side surface 60 of the shutter case 6 and a key for detaching the cylinder part from the cylindrical part. A release wire and a return wire are connected to each other. For the wire operation using the lock, the description in Patent Document 2 can be referred to. When releasing the clutch, the clutch can be released by pulling the release wire 40 with the clutch release lock. Similarly, the clutch return operation is performed using the clutch return lock.

The present invention can be used for a clutch release / return mechanism in an electric shutter.

It is a front view of a shutter device. It is a front view of a winding body. It is the front view and bottom view of an opening / closing machine. It is a side view of an opening / closing machine. It is the front view and side view which show the inside of an opening-and-closing machine partially. It is a figure which shows the structure of the front end side of a clutch releasing / returning mechanism. It is a figure which shows the structure of the front end side of a clutch releasing / returning mechanism, (A) shows a clutch return state, (B) has shown the clutch release state. (A) is the elements on larger scale which show the positional relationship of the insertion hole of a bush, and the length direction of a shaft, (B) shows the bush embed | buried under the surrounding wall of a shaft, and the outer cable extended in the shaft. FIG. 4C is a view showing the outer cable. It is a figure explaining attachment with respect to the shaft of a release wire and a return wire. It is detail drawing of a bush. It is a figure explaining attachment of the wire with respect to a clutch release and a return mechanism. It is a figure explaining operation of the clutch release and return mechanism by a release wire and a return wire. It is a figure explaining the operation method of the release wire and return wire from the outside.

Explanation of symbols

2 Winding body 20 Shaft 3 Opening / closing machine 40 Release wire 41 Return wire 6 Bush 60 Insertion hole 61 Insertion hole 7 Outer cable 70 Insertion part 71 Insertion part

Claims (5)

An electric shutter clutch operating wire mounting structure,
The clutch operation wire consists of two wires, a release wire and a return wire,
The base ends of the two wires are connected to a clutch release / return mechanism of an opening / closing machine built in a winding body that winds up the shutter curtain,
Two independent insertion holes are formed on the peripheral surface of the shaft of the winding body,
An outer cable having two independent insertion portions is extended in the length direction of the shaft in the shaft,
The two wires are guided from the base end in a direction orthogonal to the length direction of the shaft and in a direction opposite to each other, and are guided through the two insertion holes into the shaft. , Extending through each of the two insertion portions of the outer cable in the shaft, the tips of the two wires are drawn from the end of the shaft,
Attachment structure of the clutch operation wire.   The attachment structure of the wire for clutch operation of Claim 1 with which the said 2 independent insertion hole is arranged in parallel by the length direction of the shaft.   The clutch insertion wire attachment structure according to claim 1, wherein the insertion hole is a long hole extending in a direction orthogonal to a length direction of the shaft.   The clutch insertion wire attachment structure according to any one of claims 1 to 3, wherein the two insertion holes are insertion holes formed in a bush embedded in a shaft peripheral wall.   The release wire and the return wire are formed by folding back one wire, and the folded portion constitutes the proximal ends of the release wire and the return wire. Mounting structure for the clutch operating wire.

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