JP5242046B2 - Switchgear - Google Patents

Description

  The present invention is, for example, a shutter device including a screen shutter device or an overhead door, a roll screen device, a blind, an awning device, etc., and an open / close device that opens and closes an opening by an open / close body, The present invention relates to an opening / closing device that can be opened or closed.

  In general, a conventional electric shutter is configured such that a shutter curtain for raising and lowering an opening and closing space for a structure such as a building is driven up and down by an opening / closing device (motor or the like) disposed on the back of the structure or in a shutter case. It is like that. Such an electric shutter is configured such that the shutter curtain itself is lowered by its own weight and held in a fully closed state by performing a predetermined operation during a power failure. Therefore, when the fully closed shutter curtain is opened in the event of a power failure, the shutter curtain is rolled up and opened by rotating the output rotary shaft (rotary shaft) of the switch with a manual operation handle provided in the vicinity thereof. I am doing so.

  More specifically, since the switch and the manual operation handle are disposed behind the ceiling of the structure, a stepladder is used to open the shutter curtain in the event of an emergency such as a power failure. Open the inspection port lid provided in the inspection port, let at least the upper body of the operator infiltrate into the back of the ceiling from this inspection port, and in this state, install the handle for manual operation and remove it from the place and use it as the output rotation shaft of the switch The actual situation is that the output rotation shaft is fitted and rotated.

  Further, as a conventional similar technique, for example, a shutter winding device that can open and close a manual shutter with a portable electric drill is also known (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 6-10596

  The shutter hoisting device according to Patent Document 1 has a separate structure from the shutter hoisting mechanism, and the chain pulley is rotatably attached to a support base attached to a tripod so that the height can be adjusted. A portable electric drill for rotational driving is assembled. For example, when opening and closing a manual shutter, a manually operated opening / closing chain hanging from a manual opening / closing machine is wound around a chain pulley on the support base. The opening / closing of the shutter is powered by rotating the chain pulley with the portable electric drill in a state where the chain is engaged and the opening / closing chain is tensioned by adjusting the height of the support base. Note that the shutter winding device according to Patent Document 1 can also be used for a shutter winding operation at the time of electric shutter mounting work.

  In the case of a conventional electric shutter, when opening a shutter curtain that is closed in the event of an emergency such as a power outage, use a stepladder to open the lid of the inspection port on the ceiling of the structure, and at least the operator must pass from the inspection port to the ceiling. If the upper body is infiltrated, the handle for manual operation is installed, removed from the installation location, and not fitted into the output rotary shaft of the switch, the output rotary shaft cannot be rotated. However, there is a problem that the user cannot easily perform the opening operation because there is a danger in particular, because there is a problem that the apparatus, the electric wiring, and the like are arranged.

  On the other hand, in the shutter hoisting device of Patent Document 1, in the case of a manual shutter, the shutter is opened and closed on the floor surface by the rotational power of a portable electric drill using a manually operated opening / closing chain hanging from a manual opening / closing device. However, before opening and closing the shutter, not only the height of the support base on the tripod is adjusted, but also the mounting position of the portable electric drill on the support base is adjusted with a number of adjustment bolts. There was a problem that it took a lot of work and the workability was poor.

  In addition, it is difficult to apply the shutter winding device of Patent Document 1 as an emergency opening device at the time of a power failure in an existing electric shutter. That is, in the shutter hoisting device of Patent Document 1, the opening / closing chain hanging from the opening / closing machine is wound and meshed with the chain pulley that is attached to the support on the tripod and rotated by the portable electric drill as described above. However, the open / close chain is a manual open / close operation chain of a manual shutter, and such an open / close chain is not normally provided with an electric shutter. The winding device may not be applicable as an emergency opening device for an electric shutter.

  The present invention has been made to solve the above-described problems, and when opening a closed state such as an electric shutter in an emergency such as a power failure, an operator can easily do without entering the back of the ceiling. It is an object of the present invention to obtain an opening / closing device having an emergency opening device that can be opened.

An opening / closing apparatus according to the present invention is provided on one side of a joint socket on an opening / closing device that is disposed on a ceiling or the like of a structure and drives the opening / closing body to open / close, and a rotating shaft that directly or indirectly transmits the rotational force of the opening / closing device. Rotation in which one end portion integrally having the other joint socket is rotatably connected and the other end portion integrally having the other joint socket is rotatably arranged on the ceiling member disposed on the lower side of the switch. A force transmission member and a single rod-shaped rotation operation member for applying a rotational force to the rotational force transmission member are provided , and a connector pin protruding downward from the lower surface of the ceiling member can be integrally rotated in the other joint socket The rotation operation member is removably connected to the connector pin from below, and the rotation operation member is connected to the connector pin so that the rotation of the rotation operation member is Those that are configured to be transmitted to the rotating shaft. Incidentally, in this invention, the operations easy position refers operable position with a person standing on the floor.

  According to the present invention, the rotational force is transmitted at one end connected to a rotational shaft that is disposed on the ceiling or the like of a structure and that directly or indirectly transmits the rotational force of an opening / closing device that opens and closes an opening / closing member such as a shutter. Because the other end of the member is placed in an easy-to-operate position, a dangerous high place is caused by the operator entering the back of the ceiling when opening the closed electric shutter in the event of an emergency such as a power failure There is an effect that the output rotary shaft of the switch can be easily rotated in the shutter opening direction via the rotational force transmitting member without requiring any work.

Embodiment 1 FIG.
1 is a front view of a panel shutter, FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a shutter emergency opening device applied to a switchgear according to Embodiment 1 of the present invention. 4 is an enlarged view of a main part shown in relation to the switch of FIG. 4, FIG. 4 is an enlarged view of a main part of FIG. 3, and FIG.
The electric shutter shown in FIG. 1 includes a panel shutter, and a pair of left and right guide rails 1 disposed on both sides of an opening / closing space (shutter opening / closing opening) in a structure such as a building, and upper portions of these guide rails 1. A shutter case (shutter housing portion) 2 provided on the ceiling of the structure and the wall surface of the structure, a shutter curtain (opening / closing body) 3 that moves up and down between the guide rails 1, and the shutter case 2 And an opening / closing machine 7 (see FIG. 2) which is disposed inside and drives the shutter curtain 3 to move up and down.

  More specifically, both the guide rails 1 are made of a member having a U-shaped cross section having an opening 1a (see FIG. 2) for shutter curtain guides on the opposing surfaces. The shutter curtain 3 includes a plurality of panels 3a in which both side portions are fitted in the opening 1a so as to be movable up and down. These panels 3a are suspended in series by a pair of left and right panel linkage chains 5 via roller shafts of suspension rollers 4 attached to the upper portions of both sides. As shown in FIG. 2, these panel connection chains 5 mesh with a pair of left and right panel lifting / lowering drive system sprockets 6 disposed above the guide rail 1 in the shutter case 2. The sprocket 6 is rotationally driven by a power transmission mechanism 8 by the opening / closing device (motor) 7.

  As shown in FIGS. 2 and 3, the power transmission mechanism 8 includes an output sprocket 7b fitted to one end of an output rotation shaft (rotation shaft) 7a of the opening / closing machine 7, and a panel lifting drive system. It consists of chain and sprocket mechanisms 8a and 8b that interlock the sprocket 6 and the input sprocket 8c that rotates synchronously.

  In the shutter case 2, there is a storage rail 9 that supports the suspension roller 4 of the panel 3a that is lifted between the left and right guide rails 1 and passed between the left and right sprockets 6 of the panel lifting drive system. Has been placed. Accordingly, the panel 3a is moved in a vertical position along the guide rail 1 by the feed operation of the panel connecting chain 5 by the sprocket 6 when the sprocket 6 is driven to rotate forward and backward by the opening / closing device 7, and the storage rail. 9 to the horizontal movement along the line 9.

In the panel shutter configured as described above, as shown in FIG. 3, the rotational force transmission member 10 of the rotary operation system is provided at the shaft end portion of the output rotary shaft 7a of the switch 7 opposite to the output sprocket 7b. The other end of the rotational force transmitting member 10 is rotatably arranged from the ceiling member 11 of the structure. The ceiling member 11 of the structure may be a bottom plate member of the shutter case 2. Therefore, in this invention, the ceiling member 11 of the structure includes a bottom plate member.
Furthermore, the arrangement position of the other end portion of the rotational force transmitting member 10 is not limited to these, for example, the state where the user stands on the floor surface, such as the wall surface position of the structure or the outer surface of the shutter case 2. Any position can be used as long as it is easy to operate artificially.

In the first embodiment, as shown in FIG. 3, the rotational force transmitting member 10 has one end connected to the shaft end of the output rotating shaft 7a so as to be integrally rotatable, and the other end is the ceiling surface portion. 11 is composed of the flexible shaft 10 led out to No.11. The flexible shaft 10 has joint sockets 12 and 13 integrally at both ends. The joint socket 12 at one end thereof is fitted to the shaft end portion of the output rotating shaft 7a so as to be integrally rotatable.
The joint socket 13 at the other end is rotatably attached to the ceiling member 11 via a bearing 14 as shown in FIG. A connector pin 15 protruding from the lower surface (ceiling surface) of the ceiling member 11 is connected to the joint socket 13 at the other end so as to be integrally rotatable. The connector pin 15 is integrally provided with an engagement pin (engagement protrusion) 16 protruding outward in the radial direction.
In addition, 13a and 13b shown in FIG. 4 are set screws, for example, and fix the flexible shaft 10 and the connector pin 15 so that attachment or detachment is possible.

  A rotation operation member 17 for rotating the flexible shaft 10 is detachably inserted and connected to the connector pin 15. The rotation operation member 17 is composed of a single rod-shaped pipe member, and a connector socket 18 that fits into the connector pin 15 is integrally provided at one end (upper end in the figure). A notch engaging portion 18 a for fitting and engaging with the connector pin 15 is provided at the distal end portion of the connector socket 18. Further, the other end portion (lower end portion in the figure) of the rotation operation member 17 is detachably fitted with a collect chuck of a portable rechargeable rotary electric tool (not shown) such as a portable rechargeable electric drill. A connector pin 19 is provided integrally.

  In addition, the rotation direction of the flexible shaft 10 that integrally rotates the output rotation shaft 7a is set only in the shutter opening direction in the inside of the switch 7 or in the connecting portion between the output rotation shaft 7a and the flexible shaft 10 of the switch 7 or the like. It is desirable to provide a reverse rotation prevention mechanism (not shown) such as a ratchet for setting the torque limiter, and to incorporate a torque limiter.

Next, the operation will be described.
When the shutter curtain 3 is fully closed between the left and right guide rails 1, when the shutter curtain 3 is opened in an emergency when the power supply to the switch 7 is interrupted due to a power failure or the like, a rotation operation provided in the vicinity is provided. The flexible shaft 10 is rotated in the opening direction of the shutter using the member 17. In this case, since the connector pin 15 at the tip of the flexible shaft 10 protrudes downward from the lower surface of the ceiling member 11, that is, the ceiling surface, the connector socket 18 of the rotation operation member 17 is fitted into the connector pin 15 from below, and the connector After engaging the notch engaging portion 18a of the socket 18 with the engagement pin 16 of the connector socket 15, the rotation operation member 17 is rotated in one direction (shutter opening direction). By this rotation operation, the flexible shaft 10 is rotated, and the output rotating shaft 7a of the opening / closing device 7 is rotated integrally therewith, whereby the panel connection engaged with the panel lifting / lowering drive system sprocket 6 on the output rotating shaft 7a is made. The shutter curtain 3 is pulled up and opened through the chain 5.

  The above operation is a case where the shutter curtain 3 is opened only by an artificial rotation operation only by the rotation operation member 17. A rechargeable rotary electric tool is connected to the lower end of the rotation operation member 17 by using a connector pin 19. Therefore, the shutter curtain 3 can be quickly opened by rotationally driving the flexible shaft 10 via the rotary operation member 17 by the rechargeable rotary electric tool.

  According to the first embodiment described above, one end portion of the flexible shaft 10 is connected to the shaft end portion of the output rotation shaft 7a of the opening / closing device 7 that drives the shutter curtain 3 to move up and down, and the flexible shaft 10 is integrally rotatable. The other end portion of the rotary operation member 17 is led out downward from the ceiling surface 11 of the structure, and one end portion of the rotation operation member 17 is detachably inserted into the lead-out end portion and engaged with the rotation shaft 17 via the flexible shaft 10. Since the output rotation shaft 7a can be rotated in the shutter opening direction, when the shutter curtain 3 in the closed state is opened in an emergency when the power supply to the switch 7 is interrupted due to a power failure or the like, It is not necessary for the worker to perform an altitude work that intrudes into the back of the ceiling as in the conventional case, and the work is closed by a safe work on the floor by the rotary operation member 17. There is an effect that the shutter curtain 3 states can be easily opened.

  Further, since the collect chuck of a portable rechargeable rotary electric tool can be connected to the rotary operation member 17, when the output rotary shaft 7a of the switch 7 is manually rotated, the shutter in the closed state is closed. When the curtain 3 is opened, it takes about one-tenth to one-twentieth of the time when the rotational power of the rechargeable rotary power tool is used, compared with the case where about 30 to 3 hours are required. There is an effect that the shutter curtain 3 in the closed state can be quickly opened.

  Furthermore, the flexible shaft 10 has an effect that it is possible to arbitrarily select and set a portion to be derived to the ceiling surface by making use of its flexible characteristics. Here, since the flexible shaft 10 has a structure in which a spring-like steel wire is twisted, the twisted steel wire can be unwound when rotated in a direction opposite to the direction in which the steel wire is twisted. Since a reverse rotation prevention mechanism such as a ratchet is built in the switch 7 so that it can rotate only in the direction of twisting the steel wire and does not rotate in the direction opposite to the direction of twisting the steel wire, the flexible shaft by unwinding the twisted steel wire There is an effect that 10 damage can be prevented.

  In the first embodiment, the flexible shaft 10 is rotated using the rotation operation member 17 having a single rod shape that is separate from the flexible shaft 10, but from the ceiling surface 11 of the flexible shaft 10. A handle for rotational operation may be directly attached to the lead-out end of the. Even in this case, there is an effect that the operator can operate the handle without entering the back of the ceiling at the time of emergency opening of the shutter at the time of power failure or the like. Further, the rotational force transmitting member 10 is not limited to a flexible shaft, but is one in which one end is connected to the output rotating shaft 7a of the switch 7 so as to be integrally rotatable and the other end is led to the ceiling surface. For example, the rotational force transmission member 10 may have any configuration such as a configuration combining a worm gear and a bevel gear or a configuration using a universal joint. In addition, when the space between the output rotating shaft 7a and the ceiling member 11 is a box shape, or when the space in the ceiling cannot be obtained by building-side equipment such as piping and wiring, a mode using a flexible shaft is more preferable.

  In the first embodiment, the panel shutter is described as the electric shutter. However, the emergency opening device of the electric shutter exemplified as the opening / closing device of the present invention is configured by, for example, a slat other than the panel shutter, and is wound and rewinded. The present invention can be applied to all opening / closing devices (for example, a shutter device including a screen shutter device or an overhead door, a roll screen device, a blind, an awning device, etc.) such as an open / close shutter.

  Further, one end of the rotational force transmitting member 10 may be a part where the rotational force of the opening / closing machine is not directly transmitted, for example, a winding shaft such as a sprocket or a slat.

  Furthermore, it is preferable that the connection portion between the flexible shaft 10 and the rotation operation member 17 applied as the rotational force transmission member in the first embodiment is installed on the crime prevention upper room side. Further, the rotary operation member 17 may be flexible such as a flexible shaft, or may be a universal joint.

It is a front view of a panel shutter. It is an expanded sectional view along the AA line of FIG. FIG. 3 is an enlarged view of a main part showing the shutter emergency opening device applied to the opening / closing device according to Embodiment 1 of the present invention in relation to the opening / closing device in FIG. 2. It is a principal part enlarged view of FIG. It is the figure which expanded further which shows the connection connector site | part of the rotation operation member in the flexible shaft in FIG.

Explanation of symbols

1 Guide Rail 1a Opening 2 Shutter Case (Shutter Storage)
3 Shutter curtain (opening and closing body)
3a Panel 4 Suspension roller 5 Panel linkage chain 6 Panel lifting drive sprocket 7 Opening and closing machine 7a Output rotating shaft (rotating shaft)
7b Output sprocket 8 Power transmission mechanism 8a, 8b Chain / sprocket mechanism 8c Input sprocket 9 Storage rail 10 Rotational force transmission member (flexible shaft)
DESCRIPTION OF SYMBOLS 11 Ceiling member 12, 13 Joint socket 13a, 13b Set screw 14 Bearing 15 Connector pin 16 Engagement pin 17 Rotation operation member 18 Connector socket 18a Notch engagement part 19 Connector pin

Claims (7)

An opening / closing device that opens and closes the opening / closing body, and a rotary shaft that directly or indirectly transmits the rotational force of the opening / closing device, one end portion integrally having one joint socket is rotatably connected, and the opening / closing a ceiling member disposed on the lower side of the machine, the rotational force transmitting member which is rotatably disposed and the other end having the other of the joint socket integrally, one to impart rotational force to the rotational force transmitting member It has a rod-shaped rotation operation member ,
A connector pin that protrudes downward from the lower surface of the ceiling member is connected to the other joint socket so as to be integrally rotatable. The rotation operation member is detachably connected to the connector pin from below. An opening / closing device configured to transmit rotation of the rotation operation member to a rotation shaft of the opening / closing device in a state where the member is connected to the connector pin . The connector pin is provided with an engaging protrusion that protrudes radially outward, and the rotation operation member is provided with a notch engaging portion that engages with the engaging protrusion. The switchgear according to claim 1. The position where the other end portion of the rotational force transmitting member is arranged on the ceiling member is such that one end portion of the rotational force transmitting member is connected to one shaft end portion of the rotating shaft of the switch via the one joint socket. The switchgear according to claim 1 or 2, wherein the switchgear is opposite to the output sprocket fitted to the other shaft end of the rotary shaft of the switchgear with respect to the connected position. . The rotational force transmitting member, opening and closing device according to any one of claims 1 to 3, characterized in that it consists of a flexible shaft. The opening / closing device according to any one of claims 1 to 4, wherein the rotation operation member includes a reverse rotation preventing mechanism that can rotate only in an opening direction of the opening / closing body. The rotational force transmission member comprises a flexible shaft having a structure in which a steel wire is twisted in the opening direction of the opening / closing body, and the reverse rotation prevention mechanism is rotatable only in the steel wire twisting direction of the flexible shaft. 6. The switchgear according to claim 5, wherein the switchgear is provided. The opening / closing apparatus according to any one of claims 1 to 6, wherein the rotation operation member is rotationally driven by a portable rechargeable rotary electric tool.

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