JP6959094B2 - Switchgear - Google Patents

Description

The present invention is an optical type for optically detecting a switchgear that can be opened and closed and an opening that is opened and closed by the switchgear, or whether or not an obstacle exists in the vicinity of the opening. Regarding switchgear equipped with an obstacle detection device, for example, a shutter device whose shutter curtain is an opening / closing body, an oversliding door (overhead door) device whose sliding door is an opening / closing body, and a smoke-proof hanging wall. It can be used for various opening and closing devices such as devices and sliding door devices.

The following Patent Document 1 describes a shutter curtain 4 (see FIG. 2) which is an opening / closing body that can be opened / closed, a drive control unit 12 which is a control device for driving and controlling the shutter curtain 4, and optics. An obstacle detection device 7 which is an obstacle detection device, and a shutter device 1 which is an opening / closing device including the obstacle detection device 7 are shown.

The obstacle detection device 7 is located on both sides of the width direction of the shutter curtain 4 which is orthogonal to the vertical direction which is the opening / closing direction of the shutter curtain 4 at an opening such as an entrance / exit which is opened / closed by the shutter curtain 4. A light projecting means including a floodlight 9 which is a plurality of light projecting units arranged on one of the left and right guide rails 6 forming one side and arranged at intervals in the opening / closing direction. In the opening / closing direction, which is arranged on the other of the light emitting side base material 7 and the left and right guide rails 6 forming the other side, and receives the light emitted from each of the plurality of light emitting portions. The light receiving side base material 8 which is a light receiving means including the light receiving portions 10 which are a plurality of light receiving parts arranged at intervals, and the optical axis of the light emitted from the floodlight 9 are the opening or the opening. When the drive control unit 12 is blocked by an obstacle existing in the vicinity of the opening, the obstacle detection control unit 11 which is an obstacle determination means for inputting an obstacle detection signal which is an obstacle detection signal is connected to the drive control unit 12. Have.

Further, the shutter device 1 is arranged on a seat plate 4a forming an end portion on the closing side of the shutter curtain 4, and light emitted from each of the plurality of floodlights 9 during the closing movement of the shutter curtain 4. It also has a light blocking body 13a which is a shielding member for shielding the optical axis of the above, and the obstacle detection control unit 11 shields the optical axis by the light blocking body 13a among the plurality of floodlights 9. With respect to the floodlight 9, it is determined that the shutter curtain 5 in motion has passed by closing the floodlight 9, and the optical axis of the light emitted from the floodlight 9 is ignored.

Japanese Unexamined Patent Publication No. 2016-223160

By the way, when the shutter curtain 4 opens to the fully open position and moves, the light blocking body 13a is stored together with the seat plate 4a in a shutter case (in other words, a shutter box) or the like, which is a storage space for storing the shutter curtain 4. Is preferable.

However, when the light emitting side base material 7 must be arranged apart from the shutter curtain 4 in the thickness direction of the shutter curtain 4, the thickness direction of the shutter curtain 4 of the light blocking body 13a (in other words, in other words). , The direction orthogonal to the optical axis direction of the light emitted from the floodlight 9) needs to be taken large, but in this case, when the shutter curtain 4 opens to the fully open position and moves, the light blocker 13a May not be stored in the shutter case or the like together with the seat plate 4a.

In order to solve such a problem, for example, a processing work for expanding the opening width of a portion (for example, a slit) through which the shutter curtain 4 passes is required separately in the shutter case or the like.

Therefore, even if the size of the light blocking body 13a becomes large due to the positional relationship with the light emitting side base material 7, there is no need for processing work to expand the opening width of the portion of the shutter case or the like through which the shutter curtain 4 passes. Further, when the shutter curtain 4 is opened to the fully open position and moved, a device for storing the light blocking body 13a together with the seat plate 4a in the shutter case or the like is required.

An object of the present invention is that even if the size of the shielding member arranged on the opening / closing body becomes large due to the positional relationship with the optical obstacle detection device, when the opening / closing body opens and moves to the fully opened position, the shielding member is opened and closed. At the same time, there is a place to provide an opening / closing device that can be stored in a storage space for storing this opening / closing body.

The opening / closing device according to the present invention comprises an opening / closing body that can be opened / closed and moved, a control device for driving and controlling the opening / closing body, and an opening that is opened / closed by the opening / closing body or in the vicinity of the opening. It is provided with a plurality of light projecting portions arranged on one side of both sides of the opening / closing body in the width direction orthogonal to or substantially orthogonal to the opening / closing direction of the opening / closing body and arranged at intervals in the opening / closing direction. A plurality of light receiving units arranged on the other side of the light projecting means and arranged at intervals in the opening / closing direction for receiving light emitted from each of the plurality of light projecting units. When the light receiving means provided with the above and the optical axis of the light emitted from the light projecting portion are blocked by the opening or an obstacle existing in the vicinity of the opening, an obstacle detection signal is sent to the control device. An optical obstacle detecting device having an obstacle determining means for inputting an image, and an end of the opening / closing body on the closing side or in the vicinity thereof, and the opening / closing body is being moved while the opening / closing body is closed. The obstacle determination means includes, among the plurality of light projecting units, a shielding member for shielding the optical axis of the light emitted from each of the plurality of light projecting units. With respect to the light projecting unit whose optical axis is shielded by the shielding member, it is determined that the opening / closing body that is moving by closing the light projecting unit has passed, and the light emitted from the light projecting unit is the light. In the opening / closing device that ignores the shaft, the shielding member is swingable with respect to the opening / closing body about the swing center axis in the width direction or the opening / closing direction of the opening / closing body. At the same time, the opening / closing body is oscillated by the oscillating urging means in a direction away from the opening / closing body, and when the opening / closing body opens and moves to the fully open position, the shielding member opens the opening / closing body at the opening. By contacting the immovable member forming the side side portion, the light swings in the direction approaching the opening / closing body, and is stored in the storage space for storing the opening / closing body. When the body closes and moves from the fully open position, the shielding member is characterized in that it separates from the storage space and swings in a direction away from the opening / closing body by the swing urging means.

In the present invention, as described above, the shielding member is swingable in the width direction or the opening / closing direction of the opening / closing body with respect to the opening / closing body around the swing center axis, and is provided by the swing urging means. It is oscillated in a direction away from the opening / closing body, and when the opening / closing body opens and moves to the fully open position, the shielding member abuts on the immovable member forming the open side side portion of the opening / closing body at the opening. As a result, it swings in the direction closer to the opening / closing body and is stored in the storage space for storing the opening / closing body.

Therefore, according to the present invention, even if the size of the shielding member arranged on the opening / closing body increases due to the positional relationship with the optical obstacle detection device, when the opening / closing body opens and moves to the fully open position, the shielding member is operated. Together with the opening and closing body, it can be stored in the storage space for storing this opening and closing body.

When the opening / closing body reaches the fully open position and the shielding member is stored in the storage space, elastic force (in other words, repulsive force) in the direction away from the opening / closing body is accumulated in the swing urging means. become.

Further, in the present invention, as described above, when the opening / closing body is closed and moved from the fully open position, the shielding member is separated from the storage space and elastic force is accumulated in the direction away from the opening / closing body as described above. The rocking urging means swings in the direction away from the opening / closing body.

As a result, the shielding member is in a state where it can shield the optical axis of the light emitted from each of the plurality of light projecting portions during the closing movement of the opening / closing body.

The shielding member may or may not be constantly oscillated by the oscillating urging means in the direction away from the opening / closing body.

In the present invention, the shielding member has an arbitrary form and structure as long as it can shield the optical axis of the light emitted from each of the plurality of light projecting portions during the closing movement of the opening / closing body. It's fine.

The first example of the shielding member has an extension portion extending in a direction having a component on the outer side in the thickness direction of the opening / closing body, and at least of the opening side portions of the opening / closing body in the extending portion, the opening / closing body. The part that comes into contact with the immovable member when it opens to the fully open position and comes into contact with the immovable member is an inclined portion that is inclined toward the closing side of the opening / closing body, and the shielding member is an opening / closing body with respect to the opening / closing body centered on the swing center axis. It is swingable in the width direction of.

In this first example, the swing urging means may or may not be an elastic member arranged between the opening / closing body and the shielding member.

In the former case, the elastic member may be any one as long as it has elasticity, for example, a torsion coil (torsion) spring, a compression coil spring, a leaf spring, an elastic rubber, or the like. ..

In the first example of the shielding member described above, the shielding member may or may not be formed by bending the plate material.

In the former case, the extending portion of the shielding member is, for example, one of a planar first portion extending outward in the thickness direction of the opening / closing body and one of both sides in the width direction of the opening / closing body from the tip of the first portion. It consists of a planar second part that curves toward the side, and at least the part of the side part on the opening side of the opening / closing body in this second part that comes into contact with the immovable member when the opening / closing body opens to the fully open position and moves. The inclined portion is inclined toward the closing side of the opening / closing body, and this shielding member is swingably attached to the opening / closing body via a hinge in the width direction of the opening / closing body, and the hinge swings. It has a shaft portion that is a dynamic center axis, a first blade portion that is attached to the first portion of the shielding member, and a second blade portion that is attached to the opening / closing body, and the elastic member is arranged on the shaft portion. It is a torsion coil spring, and one end of the torsion coil spring may be locked to the first blade portion and the other end may be locked to the second blade portion.

The elastic member may be a compression coil spring arranged between the first blade portion and the second blade portion, a leaf spring, an elastic rubber or the like.

The shielding member may have a planar third portion that bends from the rear end of the first portion to the other side of both sides in the width direction of the opening / closing body.

According to this, it is possible to prevent the shielding member from swinging significantly to the other side of both sides in the width direction of the opening / closing body due to the elastic force (repulsive force) of the elastic member which is the swinging urging means. Will be.

Therefore, the third portion is a swing preventing means for preventing the shielding member from swinging significantly to the other side of both sides in the width direction of the opening / closing body due to the elastic force of the elastic member, in other words, the shielding member. It serves as a swing regulating means for regulating the swing of the member.

In the present invention, an opening / closing body movement count counting device for counting the number of movements of the opening / closing body is provided, and the opening / closing body movement count counting device is arranged on one of the opening / closing body and the immovable member, and is a reactant. It is configured to include a counting device main body having an opening / closing body movement count counting unit for counting the number of movements of the opening / closing body, and an actuator arranged on the other side for reacting the reactants. The opening / closing body movement count unit may count the number of movements of the opening / closing body by moving the opening / closing body and bringing the reactants on which the magnetic force acts and the working bodies approach each other.

Here, the opening / closing body movement count unit may count only the number of opening movements of the opening / closing body, or may count only the number of closing movements of the opening / closing body. Both the number of open movements and the number of closed movements may be counted.

In other words, the opening / closing body movement count unit may count 1 for the opening / closing movement (1 reciprocation) of the opening / closing body, and counts 2 for the opening / closing movement (1 reciprocation) of the opening / closing body. It may be.

Further, the reactant and the activator may be arbitrary as long as the magnetic force acts on them. For example, the reactant may be a magnet, the activator may also be a magnet, and the reactant is magnetic such as iron. It is a body, the working body may be a magnet, the reactant may be a magnet, and the working body may be a magnetic body such as iron.

Here, the magnet may be a permanent magnet or an electromagnet. In the latter case, it is necessary to provide a battery or the like for energizing.

The form, structure, etc. of the opening / closing body movement count unit may be arbitrary. For example, the opening / closing body movement count counting unit is rotatable around a shaft, has a rotating drum with a number printed on the outer peripheral surface, and has a reactant, and is swingable around the shaft. A rocking member having a claw portion that can be meshed with the claw portion of the ratchet hole arranged coaxially with the shaft of the rotating drum is provided. The swinging member may swing when the swinging member approaches, and the claw portion of the swinging member meshes with the claw portion of the ratchet hole of the rotating drum to rotate the rotating drum.

In the present invention, when the counting device main body constituting the opening / closing body movement count counting device is arranged on the opening / closing body and the operating body constituting the opening / closing body movement count counting device is arranged on the immovable member, the counting device main body May or may not be stored inside a case arranged on the opening / closing body.

In the former case, the form and structure of the case may be arbitrary, and the first example includes a base member attached to the opening / closing body and a cover member for covering the base member. The cover member is swingable in the opening / closing direction of the opening / closing body around the swinging central axis arranged at the end of the opening / closing body on the opening side of the base member. Further, the second example of the case type and structure is composed of only a cover member, and the cover member can swing freely in the opening / closing direction of the opening / closing body around a swing center axis arranged on the opening / closing body. Is what you are doing.

In each of the above-mentioned examples of the case type and structure, the case for accommodating the counting device main body may also serve as a shielding member.

In this case, in the first example of the above-mentioned case, the swing urging means may be, for example, an elastic member arranged between the opening / closing body or the base member and the cover member. Further, in the second example of the above-mentioned case, the swing urging means may be, for example, an elastic member arranged between the opening / closing body and the cover member.

As described above, the elastic member may be any material as long as it has elasticity. For example, a torsion coil (torsion) spring, a compression coil spring, a leaf spring, elastic rubber, or the like may be used. It may be.

In the first example of the above-mentioned case, when the elastic member is a torsion coil spring, for example, the torsion coil spring is arranged on the swing center axis, and one end of the torsion coil spring is an opening / closing body or a base member. The other end may be locked to the cover member. When the elastic members are compression coil springs, leaf springs, elastic rubbers, etc., these elastic members are arranged between the opening / closing body or the base member and the front portion forming the cover member. May be good.

Further, in the second example of the above-mentioned case, when the elastic member is a torsion coil spring, for example, the torsion coil spring is arranged on the swing center axis, and one end of the torsion coil spring is used as an opening / closing body. It may be locked and the other end may be locked to the cover member. Further, when the elastic member is a compression coil spring, a leaf spring, an elastic rubber or the like, these elastic members may be arranged between the opening / closing body and the front portion forming the cover member.

When the case for accommodating the counting device main body also serves as a shielding member in this way, it is preferable that the connecting portion between the upper surface portion and the front portion of the cover member has a round shape.

According to this, when the opening / closing body opens and moves to the fully opened position, the cover member comes into contact with the immovable member whose round-shaped connecting portion forms the side portion of the opening / closing body on the opening side. As a result, it swings in the direction approaching the opening / closing body and is stored in the storage space for storing the opening / closing body.

Further, when the case for accommodating the counting device main body also serves as a shielding member, the side surface portion (in other words, the light emitting portion of the light projecting means) forming the cover member described above is used. The surface portion orthogonal to or substantially orthogonal to the optical axis direction) may or may not also serve as a shielding member.

In the former case, in the first example of the above-mentioned case, the base member may have a side surface portion similar to the side surface portion of the cover member, and this side surface portion may also serve as a shielding member. You don't have to.

In the first and second examples of the above-mentioned cases, the counting device main body may be arranged at an arbitrary position.

In the first example of the case, the counting device main body may be arranged, for example, on the back side of the front portion of the cover member, or may be arranged on the front portion of the base member or the like.

Further, in the second example of the case, the counting device main body may be arranged, for example, on the back side of the front portion of the cover member, or may be arranged on the front portion of the opening / closing body.

In the first and second examples of the case, an opening for exposing the counting device main body to the outside may or may not be formed in the front portion of the cover member.

In the former case, the opening may or may not be covered with a transparent resin.

In the first and second examples of the above-mentioned cases, when the opening / closing body opens and moves to the fully opened position, the cover member hits the immovable member forming the side portion of the opening / closing body on the opening side. When they come into contact with each other, they swing in the direction closer to the opening / closing body and are stored in the storage space for storing the opening / closing body. There is it.

Therefore, at least on the surface of the portion of the cover member that comes into contact with the immovable member when the opening / closing body opens to the fully opened position and moves, an elongated convex portion having a length in the opening / closing direction of the opening / closing body (in other words, in other words). , The protruding portion) may or may not be formed over the entire length in the opening / closing direction or substantially the entire length.

According to the former case, when the opening / closing body opens and moves to the fully opened position, only the convex portion formed on the surface of the cover member can be rubbed and worn by the immovable member.

Here, the convex portions are formed, for example, at least at both ends in the width direction of the opening / closing body on the surface of the portion of the cover member that comes into contact with the immovable member when the opening / closing body opens and moves to the fully open position. It may be formed at or near the central portion in the width direction of the opening / closing body on the surface of the portion that comes into contact with the immovable member when the opening / closing body opens to the fully open position and moves.

The convex portion formed on the surface of the cover member may be integrated with the cover member (in other words, may be integrally molded with the cover member), and is separate from the cover member. May be good.

In the above invention, the immovable member may be any arbitrary member, and the immovable member may or may not be, for example, a forage forming an opening side side portion of the opening / closing body at the opening. good.

In the former case, the storage space is a slit provided in the forage. In the latter case, the immovable member may be, for example, a storage member for storing the opening / closing body, or another member attached to the storage member.

Further, in the above invention, the light projecting means and the light receiving means are provided on both sides in the width direction of the opening / closing body which is orthogonal to or substantially orthogonal to the opening / closing direction of the opening / closing body in the opening opened / closed by the opening / closing body or in the vicinity of the opening / closing body. If so, it may be arranged at any place.

For example, the light projecting means and the light receiving means may be arranged inside a guide member for guiding the opening / closing movement of the opening / closing body, or may be arranged outside the guiding member.
INDUSTRIAL APPLICABILITY The present invention includes various types of shutter devices such as a shutter device in which a shutter curtain is an opening / closing body, an oversliding door (in other words, an overhead door) device in which a sliding door is an opening / closing body, a smoke-proof hanging wall device, and a sliding door device. It can be applied to the opening and closing device of.

The shutter device may be a management shutter device that opens / closes, moves, or stops the movement of the shutter curtain by operating the operation device, or may be a disaster prevention shutter device that forms a disaster prevention section with a fully closed shutter curtain. Alternatively, a shutter device for both management and disaster prevention may be used, and a shutter device for a garage, a shutter device for a window, or the like may be used.

In the present invention, as described above, the obstacle determination means is a control device when the optical axis of the light emitted from the light projecting unit is blocked by an opening or an obstacle existing in the vicinity of the opening. Although the obstacle detection signal is input to, the control device may execute the obstacle determination process without the obstacle determination means.

According to the present invention, even if the size of the shielding member arranged on the opening / closing body increases due to the positional relationship with the optical obstacle detection device, when the opening / closing body opens to the fully open position and moves, the shielding member is moved together with the opening / closing body. It is possible to obtain the effect that the opening / closing body can be stored in the storage space for storing the opening / closing body.

FIG. 1 is a front view showing the entire garage shutter device which is a switchgear according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line S2-S2 of FIG. FIG. 3 is a plan view of the seat plate of the shutter curtain, which is an opening / closing body on which the shielding member shown in FIG. 1 is arranged, and the guide rail, which is a guide member. FIG. 4 is an enlarged plan view of the seat plate and the shielding member shown in FIG. FIG. 5 is a rear view (viewed from the indoor side) of the seat plate and the shielding member shown in FIG. FIG. 6 is a diagram showing a seat plate and a shielding member when the shutter curtains shown in FIGS. 1 and 2 are moved to the fully open position. FIG. 7 is a plan view of the seat plate and the shielding member as shown in FIG. FIG. 8 is a diagram similar to FIG. 1 showing a garage shutter device according to an embodiment including a shutter curtain movement count counting device, which is an opening / closing body movement count counting device. FIG. 9 is a diagram similar to FIG. 6 showing the seat plate, the shielding member, and the shutter curtain movement number counting device when the shutter curtain is moved to the fully open position in the embodiment of FIG. FIG. 10 is a front view of the counting device main body of the shutter curtain movement count counting device shown in FIG. FIG. 11 is a plan view of the counting device main body of the shutter curtain movement number counting device shown in FIG. FIG. 12 is a side view of the counting device main body of the shutter curtain movement number counting device shown in FIG. FIG. 13 is a rear view of the main body of the counting device of the shutter curtain movement number counting device shown in FIG. FIG. 14 is a diagram showing just before the shutter curtain that has reached the fully open position closes and starts moving, and the counting device main body attached to the shutter curtain passes in front of the permanent magnet that is the working body. FIG. 15 is a diagram similar to FIG. 14 showing when the shutter curtain is further closed and moved, and the counting device main body shown in FIG. 14 is passing in front of the permanent magnet. FIG. 16 is a diagram similar to FIG. 14 showing immediately after the shutter curtain is further closed and moved and the counting device main body shown in FIG. 14 passes in front of the permanent magnet. FIG. 17 is a diagram similar to FIG. 2 showing the opening / closing body movement count counting device shown in FIG. 9 and the garage shutter device provided with the shielding member according to another embodiment. FIG. 18 is a front view of a case that also serves as a shielding member shown in FIG. 17 in which the counting device main body of the opening / closing body movement count counting device is housed. FIG. 19 is a rear view of the cover member alone constituting the case shown in FIG. FIG. 20 is a cross-sectional view taken along the line S20-S20 of FIG. FIG. 21 is a plan view of the cover member shown in FIG. FIG. 22 is a front view of the base member constituting the case shown in FIG. FIG. 23 is a cross-sectional view taken along the line S23-S23 of FIG. FIG. 24 is a front view of the counting device main body mounting member for mounting the counting device main body on the back side of the cover member. FIG. 25 is a side view of the counting device main body mounting member for mounting the counting device main body on the back side of the cover member. FIG. 26 is a cross-sectional view of the S26-S26 fiber of FIG. 24. FIG. 27 is a diagram showing a case where the counting device main body is fitted to the counting device main body mounting member. FIG. 28 is a view similar to FIG. 19 showing a case where the counting device main body mounting member to which the counting device main body is fitted is fixed to the back side of the cover member. FIG. 29 is a cross-sectional view taken along the line S29-S29 of FIG. 28. FIG. 30 is a cross-sectional view taken along the line S30-S30 of FIG. 28. FIG. 31 is a view showing a part of the cover member cut off in order to show the internal structure of the case attached to the seat plate. FIG. 32 is a diagram showing the internal structure of the case (the counting device main body is omitted) when shown in FIG. FIG. 33 is a diagram similar to FIG. 6 showing the seat plate, the case, and the magnet that is the operating body of the opening / closing body movement count counting device when the shutter curtain moves to the fully open position in the embodiment of FIG. FIG. 34 is a plan view of the cover member according to another embodiment. FIG. 35 is a front view of the cover member according to another embodiment. FIG. 36 is a plan view of the cover member according to still another embodiment. FIG. 37 is a front view of the cover member according to still another embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The opening / closing device of the embodiment described below is a shutter device in which the opening / closing body is a shutter curtain. FIG. 1 shows an overall front view of a shutter device to which the optical obstacle detection device 15 according to the present embodiment is attached, and this shutter device is a garage shutter device. Therefore, the structure in which the shutter device with the optical obstacle detection device 15 according to the present embodiment is installed is a garage. Note that FIG. 1 shows a case where the shutter curtain 1 whose opening / closing movement direction is in the vertical direction is closed and moved downward to the fully closed position.

As shown in FIG. 1, a vehicle entrance / exit 2 is formed in the garage as a structure, and the shutter curtain 1 of the garage shutter device is opened / closed in the vertical direction on both sides of the vehicle entrance / exit 2. Left and right guide rails 4 that are guide members (in other words, guide members) for guiding movement are arranged, and therefore, both ends 1C and 1D in the left-right direction, which is the width direction of the shutter curtain 1, are left and right. It is slidably inserted inside the guide rails 4A and 4B. A shutter case (in other words, a shutter box) 5 is provided above the vehicle entrance / exit 2, which is an opening that is opened and closed by the shutter curtain 1, and the upper end of the shutter curtain 1 inserted inside the shutter case 5. Is coupled to a take-up shaft 6 horizontally housed inside the shutter case 5. The left and right building skeletons 3 of this embodiment are walls of the garage.

The take-up shaft 6 is rotatably supported by bracket members 7 at both left and right ends inside the shutter case 5. Therefore, the shutter curtain 1 can be wound around the take-up shaft 6 and unwound. The bracket member 7 on the side of one of the left and right ends of the take-up shaft 6 is provided with a drive device for driving the shutter curtain 1 (directly, driving the take-up shaft 6). The switch 8 is arranged. The rotational force of the drive shaft of the switch 8 is between the drive sprocket wheel attached to the drive shaft, the driven sprocket wheel attached to the one end of the take-up shaft 6, and these sprocket wheels. It is transmitted to the take-up shaft 6 via the driving force transmitting means by the endless roller chain that is bridged.

The opening / closing machine 8 composed of a combination of an electric motor and a brake causes the take-up shaft 6 to rotate forward and reverse and stop by the electric motor and the brake. The shutter curtain 1 is wound and unwound. A control device 9 to which a control signal from this operation device is input by operating a wireless operation device (not shown) or a wired operation device 10 attached to a wall 3B or the like of a garage near the shutter device. The electric motor and brake of the switch 8 are electrically controlled by the shutter curtain 1, whereby the shutter curtain 1 winds up the winding shaft 6 and moves it open and closes by feeding it out, and stops moving. In this way, the control device 9 executes at least drive control of the shutter curtain 1.

The shutter curtain 1 occupies most of the area of the shutter curtain 1, and has a curtain body 1A whose upper end is coupled to the take-up shaft 6 and a seat which is an end member provided at the lower end of the curtain body 1A. It has a plate 1B. The curtain body 1A of the present embodiment is formed by connecting a large number of slats vertically.

FIG. 2 is a cross-sectional view taken along the line S2-S2 of FIG. 1, and FIG. 3 shows a seat plate 1B of the shutter curtain 1 shown in FIG. It is a top view of the guide rails 4A and 4B. In FIG. 2, of the shutter curtain 1, only the bottom slat is displayed for the shutter body 1A.

As can be seen from FIG. 2, the portion of the shutter curtain 1 below the take-up shaft 6 passes through the slit 14 provided in the magus 11 arranged on the bottom surface portion 5A of the shutter box 5 and the shutter box 5 is formed. Further, both ends 1C and 1D in the width direction of the shutter curtain 1 are hung downward, and as can be seen from FIGS. 1 and 3, the insertion portions (in other words, guides) inside the left and right guide rails 4A and 4B. It is slidably inserted into the groove) 22.

The forage 11 is an immovable member forming a side portion on the opening side of the shutter curtain 1 at the vehicle entrance / exit 2, and the forages 11 face each other as shown in FIG. It is formed by the arranged forage members 12, 13, and a slit 14 is formed between these forage members 12, 13.

The optical obstacle detection device 15 shown in FIG. 1 includes a light projecting means 16 and a light receiving means 17, and among the light projecting means 16 and the light receiving means 17, the light projecting means 16 Is arranged on the inner side surface portion 22A of the insertion portion 22 shown in FIG. 3 on the left side (right side in FIG. 3) of the left and right guide rails 4A and 4B on the vehicle entrance / exit 2 side, and receives light. The means 17 is arranged on the inner side surface portion 22A of the insertion portion 22 of the guide rail 4B on the right side (left side in FIG. 3) on the other side. Therefore, at the vehicle entrance / exit 2 which is an opening that is opened / closed by the shutter curtain 1, one of both sides in the width direction of the shutter curtain 1 that is orthogonal to or substantially orthogonal to the vertical direction that is the opening / closing direction of the shutter curtain 1. A light projecting means 16 is arranged on the side and a light receiving means 17 is arranged on the other side, and the light emitting means 16 and the light receiving means 17 are in the width direction of the shutter curtain 1. They face each other in the left-right direction.

The light emitting means 16 and the light receiving means 17 are arranged inside the left and right guide rails 4 attached to the surface of the building frame 3 in order to guide the vertical opening / closing movement of the shutter curtain 1.

As shown in FIGS. 2 and 3, the optical obstacle detection device 15 has two spaces separated by a shutter curtain 1 that has reached a fully closed position inside the left and right guide rails 4A and 4B. Of the space outside the garage (in other words, the outdoor space) 23 and the space inside the garage (in other words, the interior space) 24, the space 24 is arranged on the side of the space inside the garage 24.

As shown in FIG. 2, the light projecting means 16 arranged inside the guide rail 4A on one of the left and right guide rails 4A and 4B (left side in FIG. 1 and right side in FIG. 3) is A plurality of (four in the present embodiment) floodlights 18 arranged at intervals in the opening / closing direction of the shutter curtain 1 are provided.

On the other hand, the light receiving means 17 arranged inside the guide rail 4B on the other side of the left and right guide rails 4A and 4B (right side in FIG. 1 and left side in FIG. 3) is the plurality of light projecting portions 18 described above. A plurality of optical axes 20 (see FIG. 1) of light emitted from each of the shutter curtains 1 in the horizontal direction, which is the width direction of the shutter curtain 1, are arranged at intervals in the opening / closing direction of the shutter curtain 1 that receives light. In this embodiment, four) light receiving units 19 are provided.

Each of the plurality of light emitting units 18 faces each of the plurality of light receiving units 19 in the left-right direction which is the width direction of the shutter curtain 1.

As shown in FIGS. 2 and 3, the height positions corresponding to the respective arrangement positions of the plurality of light projecting portions 18 on the surface portion 4C on the vehicle entrance / exit 2 side of the guide rail 4A are respectively. A through hole 4D for exposing the light projecting portion 18 to the outside is formed.

Similarly, as shown in FIG. 3, the light-receiving positions of the plurality of light-receiving parts 19 on the surface portion 4C on the vehicle entrance / exit 2 side of the guide rail 4B correspond to the respective arrangement positions. A through hole 4D for exposing the portion 19 to the outside is formed.

As shown in FIG. 3, in order to prevent the both end portions 1C and 1D from coming out of the insertion portions 22 of the guide rails 4A and 4B at both end portions 1C and D of the shutter curtain 1 in the width direction. The retaining member 25 indicated by the two-dot chain line is arranged.

Further, as shown in FIG. 1, when the optical axis 20 of the light emitted from the light projecting unit 18 is blocked by an obstacle existing at the vehicle entrance / exit 2, that is, in the upper part of the light receiving means 17. An obstacle determination means 21 for inputting an obstacle detection signal to the control device 9 when the optical axis 20 of the light emitted from the light projecting unit 18 is not received by the light receiving unit 19 is arranged.

In the present embodiment, the obstacle determination means 21 is provided in the control device 9, and when the optical axis 20 of the light emitted from the light projecting unit 18 is blocked by an obstacle existing at the vehicle entrance / exit 2. , The obstacle determination means 21 provided in the control device 9 may determine that an obstacle exists at the vehicle entrance / exit 2.

In the present embodiment, in order to prevent the obstacle determination means 21 from determining the shutter curtain 1 as an obstacle, the shutter curtain 1 is being closed and moved to the seat plate 1B which is the end of the shutter curtain 1 on the closing side. In the above, the shielding member 30 shown in FIGS. 1 to 3 for shielding the optical axis 20 of the light emitted from each of the plurality of light projecting units 18 is arranged.

As a result, the obstacle determination means 21 closes the light projecting unit 18 and is moving the shutter curtain for the light projecting unit 18 whose optical axis 20 is shielded by the shielding member 30 among the plurality of light projecting units 18. It is determined that 1 has passed, and the optical axis 20 of the light emitted from the light projecting unit 18 is ignored.

Therefore, the shutter curtain 1 that has been closed and moved to the fully closed position or the shutter curtain 1 that is being closed and moved swings in the thickness direction of the shutter curtain 1 due to wind pressure or the like, and the optical axis 20 of the light emitted from the light projecting unit 18 is displaced. Even if the shutter curtain 1 and the shielding member 30 block the shutter curtain 1, the obstacle determining means 21 does not determine the shutter curtain 1 as an obstacle.

In the present embodiment, after the shutter curtain 1 closes and starts moving, the optical axis 20 of the light emitted from the first (in other words, the uppermost) light projecting unit 18 from the top is not blocked. of the second following the light projecting portion 18 from above, when the least optical axis 20 of the emitted light from one light projecting unit 18 is interrupted, the obstacle judging unit 21, a vehicle It is determined that an obstacle exists at the entrance / exit 2, and an obstacle detection signal is input to the control device 9. The control device 9 to which the obstacle detection signal is input from the obstacle determination means 21 controls the shutter curtain 1 that is moving closed (for example, at least a control process that stops the shutter curtain 1 (furthermore, stop). The control process of reversing and raising the shutter curtain 1 (in other words, opening and moving) for a predetermined time) is executed.

On the other hand, after the shutter curtain 1 closes and starts moving, the optical axis 20 of the light emitted from the first light projecting unit 18 from the top is not blocked, and the second or lower light projecting unit from the top is not blocked. 18 of, when the least one of the light projecting portion 18 light optical axis 20 emitted from also is not blocked, the obstacle judging unit 21, there is no obstacle to the vehicle doorway 2 Is determined, and the obstacle detection signal is not input to the control device 9. As a result, the shutter curtain 1 continues to move closed.

When the optical axis 20 of the light emitted from the first light projecting unit 18 from the top is blocked after the shutter curtain 1 closes and starts moving, the obstacle determination means 21 closes and moves the shutter curtain. 1 determines that it has reached the first light projecting unit 18 from the top, and the obstacle determination means 21 ignores the optical axis 20 of the light emitted from the first and second light projecting units 18 from the top. do. Here, "ignore" means that the optical axis 20 of the light emitted from the first and second floodlights 18 is blocked or not (in other words, emitted from the first and second floodlights 18). The obstacle determination means 21 does not input the obstacle detection signal to the control device 9, regardless of whether the optical axis 20 of the light is received by the light receiving unit 19 or not).

As described above, the shutter curtain 1 that has reached the first light projecting unit 18 from the top further closes and moves (in other words, passes through the first light projecting unit 18 from the top), and the second light projecting unit from the top. in a case where the light optical axis 20 emitted from part 18 is not blocked, out of the third following light projecting portion 18 from above, least also the light emitted from one light projecting unit 18 When the optical shaft 20 is blocked, the obstacle determination means 21 determines that an obstacle exists at the vehicle entrance / exit 2, and inputs an obstacle detection signal to the control device 9.

On the other hand, the shutter curtain 1 that has reached the first light projecting unit 18 from the top is further closed and moved, and the optical axis 20 of the light emitted from the second light projecting unit 18 from the top is not blocked. of the third following light projecting portion 18 from above, when the least optical axis 20 of the emitted light from one light projecting portion 18 is not blocked, the obstacle judging unit 21, the vehicle It is determined that there is no obstacle at the entrance / exit 2, and the obstacle detection signal is not input to the control device 9. As a result, the shutter curtain 1 continues to move closed.

After that, when the optical axis 20 of the light emitted from the second light projecting unit 18 from the top is blocked by the shutter curtain 1 being further closed and moved, the obstacle determination means 21 is moving closed. It is determined that the shutter curtain 1 of the above reaches the second light projecting unit 18 from the top, and the obstacle determination means 21 emits light emitted from the first, second and third light projecting units 18 from the top. The axis 20 is ignored.

In this way, when the shutter curtain 1 closes and starts moving, and then the first light projecting unit 18 to the nth light projecting unit 18 from the top are blocked in order, the obstacle determination means 21 closes. The shielding member 30 arranged on the seat plate 1B of the moving shutter curtain 1 blocked the first light projecting unit 18 to the nth light projecting unit 18 in order from the top, in other words, during the closing movement. It is determined that the shutter curtain 1 of the above has reached (descended) the nth light projecting unit 18 from the top, and the obstacle determination means 21 is the light emitted from the first to n + 1th light projecting unit 18 from the top. The optical axis 20 is ignored.

That is, when the shielding member 30 of the shutter curtain 1 passes through the first to nth light projecting units 18 from the top among the plurality of light projecting units 18, the obstacle determination means 21 throws a plurality of light emitting units 18. Of the light units 18, the first to nth light projecting units 18 from the top through which the shielding member 30 of the shutter curtain 1 has passed, and the optical axis 20 of the light emitted from the n + 1th light projecting unit 18 from the top , Ignore it.

Then, when the optical axis 20 of the light emitted from at least one of the light projecting units 18 which is n + second or lower from the top among the plurality of light projecting units 18 is blocked, the light axis 20 is blocked. The obstacle determination means 21 determines that an obstacle exists at the vehicle entrance / exit 2, and inputs an obstacle detection signal to the control device 9.

As described above, among the plurality of light projecting units 18, the obstacle determining means 21 closes the light projecting unit 18 and moves the shutter for the light projecting unit 18 whose optical axis 20 is shielded by the shielding member 30. It is determined that the curtain 1 has passed, and the optical axis 20 of the light emitted from the light projecting unit 18 is ignored.

Next, the shape and structure of the shielding member 30 according to the present embodiment will be described below.

FIG. 4 is an enlarged plan view (in other words, a view seen from above) of the seat plate 1B and the shielding member 30 shown in FIG. 3, and FIG. 5 shows the seat plate 1B shown in FIG. It is a front view of the shielding member 30 (in other words, the view seen from the interior space (in other words, the space inside the garage) 24 side).

As can be seen from FIGS. 4 and 5, the shielding member 30 formed by bending the metal plate is outside the shutter curtain 1 in the thickness direction (in other words, in the thickness direction of the shutter curtain 1 and is the shutter curtain. It has an extension portion extending in a direction having a component (in a direction away from 1).

The extending portion is a planar first portion (in other words, extending portion) 31 extending outward in the thickness direction of the shutter curtain 1 and both sides of the shutter curtain 1 in the width direction from the tip of the first portion 31. It is composed of a planar second portion (in other words, a curved portion) 32 that curves toward one side (in the present embodiment, the side of the guide rail 4B of the left and right guide rails 4A and 4B).

As shown in FIGS. 2 and 5, of the side portions on the opening side (in other words, the upper side) of the shutter curtain 1 in the second portion 32, when the shutter curtain 1 opens and moves to the fully open position, it does not move. The portion that comes into contact with the forage member 13 that is a member and the bottom surface portion 5A of the shutter box is an inclined portion 32A that is inclined toward the closing side (in other words, the lower side) of the shutter curtain 1.

Further, as can be seen from FIGS. 4 and 5, the shielding member 30 has the left and right guide rails 4A, from the rear end of the first portion 31 to the other side of the shutter curtain 1 on both sides in the width direction (in the present embodiment, the left and right guide rails 4A, It has a planar third portion 33 that bends toward the guide rail 4A of 4B).

FIG. 6 shows the seat plate 1B and the shield when the shutter curtain 1 shown in FIG. 2 reaches the fully open position, in other words, when the shutter curtain 1 shown in FIG. 2 opens and moves to the fully open position. It is an enlarged view of the member 30.

As can be seen from FIGS. 4 to 6, the shielding member 30 is swingably attached to the shutter curtain 1 in the left-right direction, which is the width direction of the shutter curtain 1, via two upper and lower hinges 34. .. Each hinge 34 has a shaft portion 35 (see FIG. 5) which is a swing center axis, a first blade portion 36 which is attached to the first portion 31 of the shielding member 30 by a fastener 39 such as a screw, and the like. It has a second blade portion 37 attached to the seat plate 1B of the shutter curtain 1 by a fastener 39 such as a screw.

As shown in FIG. 6, a torsion coil spring 38, which is an elastic member, is arranged on the outer periphery of the shaft portion 35 of each hinge 34, and one end 38A of the torsion coil spring 38 is a first blade. It is locked to the portion 36, and the other end 38B is locked to the second blade portion 37.

Therefore, the shielding member 30 is constantly oscillated in the direction of arrow B shown in FIG. 4, which is the direction away from the shutter curtain 1, by the torsion coil springs 38 arranged on the upper and lower hinges 34, respectively. ..

As described above, in the present embodiment, the torsion coil spring 38, which is an elastic member arranged between the seat plate 1B of the shutter curtain 1 and the shielding member 30, constantly shakes the shielding member 30 in the direction away from the shutter curtain 1. It is a swinging urging means for mobilizing.

Further, in the present embodiment, the third portion 33, which is a bent portion of the shielding member 30, swings in the direction of arrow B shown in FIG. 4 of the shielding member 30 which is constantly oscillated by the torsion coil spring 38. It is a swing control means for regulation.

In other words, the third portion 33 of the shielding member 30 is the spring force (in other words, elastic force) in which the first blade portion 36 and the second blade portion 37 of the shielding member 30 are accumulated in the torsion coil spring 38. It is a blocking means (in other words, a stopping means) for preventing a large swing in the direction of arrow B shown in 4.

In the present embodiment, as can be seen from FIGS. 2 and 3, when the shutter curtain 1 in the closed movement passes through the light emitting means 16 and the light receiving means 17, the first portion 31 and the second portion 32 of the shielding member 30 are pressed. , The optical axis 20 of the light emitted from the light projecting unit 18 of the light projecting means 16 is blocked.

As can be seen from FIG. 2, the vertical dimensions (in other words, the length dimension in the opening / closing movement direction of the shutter curtain 1) of the first portion 31 and the second portion 32, which are the shielding portions of the shielding member 30, are up and down. The dimensions are such that the optical axes 20 of the light emitted from each of the two projecting units 18 adjacent to each other in the direction can be blocked at the same time.

Next, the operation of the shielding member 30 will be described.

As described above, the shielding member 30 shown in FIGS. 1 to 5 shows a state when the shutter curtain 1 is closed and moved (the same applies when the shutter curtain 1 is opened and moved or stopped). It is a thing.

The operating device 10 is operated to open and move the shutter curtain 1, and the shutter curtain 1 opens and moves to the vicinity of the fully open position, whereby the side portion of the second portion 32 of the shielding member 30 on the open side of the shutter curtain 1. The upper side portion 32A comes into contact with the shutter box 5.

As described above, the second portion 32 of the shielding member 30 is curved toward one of both sides in the width direction of the shutter curtain 1, and the upper side portion 32A of the second portion 32 is inclined downward. Since the portion (in other words, the inclined portion inclined toward the closing side of the shutter curtain 1) 32A, the shielding member 30 is in the bending direction of the second portion 32 as the shutter curtain 1 further opens and moves. It swings in the direction of arrow A shown in 4 (in other words, in the direction approaching the shutter curtain 1).

After that, as the shutter curtain 1 further opens and moves, the shielding member 30 swings until the state shown in FIG. 7 is reached, after which the shielding member 30 is as shown in FIG. In addition, the side portion of the second portion 32 is in contact with the side surface portion 13A of the magnifying glass member 13, and together with the seat plate 1B of the shutter curtain 1, the magnifying glass member 12 is a storage space for accommodating the seat plate 1B. , 13 will be stored in the slit 14.

Then, when the shutter curtain 1 opens to the fully open position and moves, the shielding member 30 is completely housed inside the slit 14 and the shutter box 5 together with the seat plate 1B of the shutter curtain 1, as shown in FIG. It will be in the state of being. As a result, the torsion coil springs 38 arranged on the shafts 35 of the two upper and lower hinges 34 have a larger spring force (in other words, repulsion) than those shown in FIGS. 1 to 5. Force) will be accumulated.

On the other hand, when the shutter curtain 1 closes and moves from the fully open position, the shielding member 30 shown in FIGS. 6 and 7 is separated from the slit 14 and the shutter curtain is released by the spring force accumulated in the torsion coil spring 38. It swings in the direction of arrow B shown in FIG. 4, which is the direction away from 1, until the state shown in FIG. 4 is reached.

As described above, according to the present embodiment, even if the dimension of the shielding member 30 arranged on the shutter curtain 1 becomes large due to the positional relationship with the optical obstacle detection device 15, the shutter curtain 1 opens to the fully open position. When moved, the shielding member 30 can be stored together with the shutter curtain 1 inside the slit 14 and the shutter box 5, which are storage spaces for storing the shutter curtain 1.

On the other hand, when the shutter curtain 1 closes and moves from the fully open position, the shielding member 30 is separated from the inside of the slit 14 and the shutter box 5, and a spring force (in other words, an elastic force) in a direction away from the shutter curtain 1 is applied. The torsion coil spring 38, which is the accumulated rocking urging means, swings in the direction away from the shutter curtain 1.

As a result, the shielding member 30 is in a state where the optical axis 20 of the light emitted from each of the plurality of light projecting units 18 can be shielded while the shutter curtain 1 is closing and moving. That is, after the shielding member 30 is separated from the inside of the slit 14 and the shutter box 5, the shielding member 30 is in a state of being able to exert a function as a shielding member.

Next, with respect to the garage shutter device according to the embodiment shown in FIGS. 1 to 7 described above, the shutter curtain 1 is an index for determining the maintenance time and state of the garage shutter device. An embodiment including a shutter curtain movement count counting device, which is an opening / closing body movement count counting device for counting the number of movements of the shutter curtain, will be described.

FIG. 8 is an overall front view of the garage shutter device according to the embodiment including the shutter curtain movement count counting device 40 according to the present embodiment. Further, FIG. 9 shows FIG. 6 showing the seat plate 1B, the shielding member 30, and the shutter curtain movement count counting device 40 when the shutter curtain 1 moves to the fully open position in the garage shutter device according to the embodiment of FIG. It is a similar figure.

The garage shutter device shown in FIGS. 8 and 9 is described above as shown in FIGS. 1 to 7 except that the shutter curtain movement number counting device 40 according to the present embodiment is provided. Since it is the same as the garage shutter device according to the embodiment, the same devices, members, and the like as those in the above-described embodiment shown in FIGS. 1 to 7 are designated by the same reference numerals, and the description thereof will be omitted.

As can be seen from FIGS. 8 and 9, the shutter curtain movement count device 40 according to the present embodiment is arranged on the seat plate 1B of the shutter curtain 1, has a reactant, and measures the number of movements of the shutter curtain 1. A counting device main body 41 having a shutter curtain movement count counting unit, which is a shutter curtain movement count counting unit for counting, and a magus member 13 of the immovable member, Magusa 11, are arranged to react the reactants. The perpetual magnet 42, which is an actuating body of the above, is included in the shutter curtain movement count counting unit. As a result, the number of movements of the shutter curtain 1 is counted.

As can be seen from FIGS. 8 and 9, the counting device main body 41 constituting the shutter curtain movement count counting device 40 has a garage interior space 24 in the seat plate 1B of the shutter curtain 1, similarly to the shielding member 30 (FIGS. 2 and 9). It is arranged on the surface portion (in other words, the back surface portion) on the side (see 3). That is, the counting device main body 41 is arranged on the surface portion of the seat plate 1B of the shutter curtain 1 on the same side as the shielding member 30.

Further, as shown in FIG. 8, the counting device main body 41 constituting the shutter curtain movement count counting device 40 is displaced (in other words, separated) from the shielding member 30 in the width direction of the shutter curtain 1. The counting device main body 41 and the permanent magnet 42 are arranged at the same position or substantially the same position in the width direction of the shutter curtain 1.

As shown in FIG. 9, the counting device main body 41 is attached to the seat plate 1B via the counting device main body mounting auxiliary member 47 and the counting device main body mounting member 48. Here, the counting device main body mounting auxiliary member 47 is a member for attaching the counting device main body 41 to the counting device main body mounting member 48 with a fastener 26 such as a screw, and the counting device main body mounting auxiliary member 47 is used for the counting device. The counting device main body mounting member 48 to which the main body 41 is attached is attached to the seat plate 1B by a fastener 39 such as a screw.

Further, as shown in FIG. 9, the permanent magnet 42 is attached to the bottom surface portion 13B of the forage member 13 and the bottom surface portion 5A of the shutter box 5 by a fastener 39 such as a screw.

Next, the structure of the counting device main body 41 shown in FIG. 9 will be described. 10 is a front view of the counting device main body 41, FIG. 11 is a plan view of the counting device main body 41, FIG. 12 is a side view of the counting device main body 41, and FIG. 13 is a side view of the counting device main body 41. It is a rear view of.

As can be seen from FIGS. 10 to 12, the counting device main body 41 includes a main body portion 43 forming the front portion of the counting device main body 41 and a base portion 44 forming the rear portion. The main body 43 includes a shutter curtain movement count counting unit (not shown) for counting the opening / closing movement count of the shutter curtain 1, and a cover 45 for covering the shutter curtain movement count counting unit. The cover portion 45 is formed with a window portion 45A for displaying the number of opening / closing movements of the shutter curtain 1 counted by the shutter curtain movement number counting unit.

Further, as can be seen from FIGS. 11 to 13, of the substantially left half of the base portion 44 which is the attachment portion of the counting device main body 41 to the counting device main body mounting auxiliary member 47, the rear portion has a notch 44A and the notch portion 44A. It has a protruding portion 44B protruding from the rear portion of the substantially right half of the base portion 44 toward the substantially left half side. Further, as can be seen from FIGS. 11 to 13, recessed portions 44C are formed at two upper and lower portions of the surface portion of the notch portion 44A of the base portion 44 of the counting device main body 41 on the side facing the protruding portion 44B.

Next, the main body 43 of the counting device main body 41 of the shutter curtain movement counting device 40 is formed, and is covered with the cover portion 45, and the number of shutter curtain movements for counting the number of opening and closing movements of the shutter curtain 1 is counted. The structure of the unit will be described with reference to FIG. 14 of FIGS. 14 to 16 used for explaining the operation of the shutter curtain movement count counting unit, which will be described later.

In FIG. 14, the shutter curtain 1 (see FIG. 9) that has reached the fully open position starts the closing movement, and the counting device main body 41 attached to the seat plate 1B of the shutter curtain 1 during the closing movement is magnetized. The internal structure of the main body 43 of the counting device main body 41 in a state immediately before passing in front of the permanent magnet 42 shown in FIG. 9 attached to the shutter member 13 is shown.

As shown in FIG. 14, the shutter curtain movement count counting unit 90 according to the present embodiment has a swing member 92 that is swingable around the shaft 91 and a swingable member 92 that is rotatable around the shaft 95. As shown in FIG. 10, a plurality of (six in this embodiment) rotating drums 46 having numbers printed on the outer peripheral surface 46A are included.

The shutter curtain movement count counting unit 90 is a drum-type counting device (drum type counting device) capable of counting the number of opening / closing movements of the shutter curtain 1 up to 999999 times by these six rotating drums 46 as shown in FIG. It is a counter).

Disc-shaped permanent magnets 93 and 94 are arranged on the upper part and the lower part of the rocking member 92 so that their polarities are opposite to each other. That is, the upper permanent magnet 93 has an S pole on the side facing the permanent magnet 42 and an N pole on the side opposite to the permanent magnet 42, and the lower permanent magnet 94 has a permanent magnet 42. The opposite side is the north pole, and the side opposite to the side facing the permanent magnet 42 is the south pole.

The portion of the rotary drum 46 side of the swing member 92 has a forked portion 9 2C having upper piece 9 2A and the lower piece 9 2B, as can be seen from Figure 14, the lower piece 9 2B for even greater towards the upper piece 9 2A from the swing member 92 as long as external force is not applied to the swing member 92, the downward swinging posture (in other words shown in FIG. 14, inclined to the side of the permanent magnet 42 (Position).

Further, on the shaft 95 of the rotating drum 46, a ratchet wheel (claw gear) 97 having a claw portion 97A is arranged coaxially with the shaft 95.

In the present embodiment, the swing member 92 swings in the clockwise direction about the shaft 91, so that the upper piece 92A of the bifurcated portion 92C of the swing member 92 meshes with the claw portion 97A of the ratchet wheel 97. As a result, the ratchet wheel 97 rotates in the clockwise direction, and at the same time, the rotating drum 46 for counting the ones digit of the six rotating drums 46 (in FIG. 10). The rotating drum on the far right side shown) also rotates in the clockwise direction. On the other hand, when the swing member 92 swings counterclockwise around the shaft 91, the lower piece portion 92B of the bifurcated portion 92C of the swing member 92 meshes with the claw portion 97A of the ratchet wheel 97, thereby engaging. , The ratchet wheel 97 rotates in the clockwise direction, and at the same time, the rotating drum 46 for counting the ones digit of the six rotating drums 46 also rotates in the clockwise direction. It will be.

Of the six rotating drums 46, the rotating drum 46 that counts (counts) the ones digit is rotated 360 degrees clockwise (that is, one rotation). In other words, if it counts 10 times, it is higher. The other rotating drum 46 for counting the digit of the digit is rotated 36 degrees (that is, one tenth rotation) in the clockwise direction by a carry mechanism (not shown).

Further, although not shown, the six rotating drums 46 are returned to the initial state in which the number on the outer peripheral surface 46A becomes "000000" by the reset mechanism.

Next, the operation of the shutter curtain movement count counting unit 90 will be described with reference to FIGS. 14 to 16.

As described above, in FIG. 14, the shutter curtain 1 that has reached the fully open position starts the closing movement, and the counting device main body 41 attached to the seat plate 1B of the shutter curtain 1 during the closing movement is a permanent magnet 42. It is a figure which shows the state just before passing in front of. In FIG. 14 and FIGS. 15 and 16 used in the description below, the shutter curtain movement count counting unit 90, the permanent magnet 42, and the permanent magnet mounting member 49 for mounting the permanent magnet 42 on the forage member 13 The display of members, devices, etc. other than the above is omitted.

As shown in FIG. 9, when the shutter curtain 1 reaches the fully open position and stops, and no external force is applied, the swing member 92 of the shutter curtain movement count counting unit 90 faces downward as shown in FIG. It is in a swinging posture. Then, in the downward swinging posture of the swinging member 92, the shutter curtain 1 that has reached the fully open position starts the closing movement, and the counting device attached to the seat plate 1B of the shutter curtain 1 during the closing movement. The main body 41 is maintained until just before passing in front of the permanent magnet 42.

FIG. 15 is a diagram similar to FIG. 14 showing when the shutter curtain 1 is further closed and moved, and the counting device main body 41 shown in FIG. 14 is passing in front of the permanent magnet 42.

As shown in FIG. 15, the counting device main body 41 approaches the permanent magnet 42 from above and passes in front of the permanent magnet 42, so that the shutter curtain movement count counting unit 90 of the counting device main body 41 An attractive force is generated between the north pole of the permanent magnet 94 arranged at the lower part of the permanent magnet 42 and the south pole of the permanent magnet 42 facing the counting device main body 41. That is, the permanent magnet 94 of the shutter curtain movement count counting unit 90 is attracted to the permanent magnet 42.

As a result, the swing member 92, which was in the downward swing posture shown in FIG. 14, swings in the counterclockwise direction around the shaft 91, so that the swing member 92 meshes with the claw portion 97A of the ratchet wheel 97. The upper piece 92A of the bifurcated portion 92C of the swing member 92 is separated from the claw portion 97A of the ratchet wheel 97, and the lower piece portion 92B of the bifurcated portion 92C of the rocking member 92 is attached to the claw portion 97A of the ratchet wheel 97. When meshed, the rocking member 92 takes an upward rocking posture (in other words, a posture tilted to the side opposite to the side of the permanent magnet 42).

As a result, the ratchet wheel 97 rotates 18 degrees in the clockwise direction (direction of arrow E shown in FIG. 15), and at the same time, counts the ones digit of the six rotating drums 46. The rotating drum 46 (the rotating drum on the rightmost side shown in FIG. 10) also rotates 18 degrees in the clockwise direction, that is, counts by half (0.5).

As the counting device main body 41 passes in front of the permanent magnet 42, the north pole of the permanent magnet 94 at the lower part of the shutter curtain movement count counting unit 90 and the S on the side of the permanent magnet 42 facing the counting device main body 41 The attractive force generated between the poles will gradually disappear. That is, the permanent magnet 94 of the shutter curtain movement count counting unit 90 is gradually not attracted to the permanent magnet 42.

However, as the counting device main body 41 passes in front of the permanent magnet 42, the S pole of the permanent magnet 93 at the upper part of the shutter curtain movement count counting unit 90 and the S on the side of the permanent magnet 93 facing the counting device main body 41. A repulsive force will be generated between the poles. That is, the permanent magnet 93 of the shutter curtain movement count counting unit 90 repels the permanent magnet 42.

Therefore, the upward swinging posture of the swinging member 92 is maintained until the counting device main body 41 is in the state shown in FIG. 16 below.

FIG. 16 is a diagram similar to FIG. 14 showing immediately after the shutter curtain 1 is further closed and moved and the counting device main body 41 shown in FIG. 14 passes in front of the permanent magnet 42.

As shown in FIG. 16, the repulsive force generated between the S pole of the permanent magnet 93 and the S pole of the permanent magnet 42 at the upper part of the shutter curtain movement count counting unit 90 disappears, and the shutter curtain moves. The permanent magnet 93 of the number counting unit 90 does not repel the permanent magnet 42. That is, the permanent magnet 93 of the shutter curtain movement count counting unit 90 is not affected by the magnetic force of the permanent magnet 42 at all.

As described above, since the upper piece 92A of the swing member 92 is larger than the lower piece 92B, the swing member 92 swings downward as shown in FIG. 14 unless an external force is applied to the swing member 92. It becomes a moving posture.

As a result, the swing member 92, which was in the upward swing posture shown in FIG. 15, swings in the clockwise direction around the shaft 91, so that the swing member 92 meshes with the claw portion 97A of the ratchet wheel 97. The lower piece 92B of the bifurcated portion 92C of the moving member 92 is separated from the claw portion 97A of the ratchet wheel 97, and the upper piece portion 92A of the bifurcated portion 92C of the swing member 92 meshes with the claw portion 97A of the ratchet wheel 97. Then, the swing member 92 is again in a downward swing posture.

As a result, the ratchet wheel 97 further rotates 18 degrees in the clockwise direction (direction of arrow E shown in FIG. 16), and at the same time, counts the ones digit of the six rotating drums 46. The rotating drum 46 (the rotating drum on the rightmost side shown in FIG. 10) is also rotated by another 18 degrees in the clockwise direction, that is, it counts by half (0.5).

As described above, in the present embodiment, the counting device main body 41 passes in front of the permanent magnet 42 from above in the rotating drum for counting (counting) the ones digit among the six rotating drums 46. Each time, it rotates a total of 36 degrees (in other words, one count) in the clockwise direction. That is, every time the counting device main body 41 passes in front of the permanent magnet 42 from above, the shutter curtain movement count counting unit 90 of the counting device main body 41 records that the shutter curtain 1 has been closed once. It has become like.

On the other hand, the shutter curtain 1 that has reached the fully closed position opens and starts moving, and the counting device main body 41 attached to the seat plate 1B of the shutter curtain 1 passes in front of the permanent magnet 42. The swing member 92 of the shutter curtain movement count counting unit 90 of the counting device main body 41 is in the upward swinging posture shown in FIG. 15 from the downward swinging posture shown in FIG. 16 described above. After that, the state becomes the state of the downward swinging posture shown in FIG.

That is, the rocking member 92 of the shutter curtain movement count counting unit 90 when the shutter curtain 1 opens and moves performs the same rocking operation as when the shutter curtain 1 closes and moves.

Therefore, in the present embodiment, of the six rotating drums 46, the rotating drum for counting the ones digit is every time the counting device main body 41 passes in front of the permanent magnet 42 from below. In addition, it rotates a total of 36 degrees (in other words, one count) in the clockwise direction. That is, each time the counting device main body 41 passes in front of the permanent magnet 42 from below, the shutter curtain movement count counting unit 90 of the counting device main body 41 records that the shutter curtain 1 has been opened and moved once. It has become like.

As can be seen from the above description, the shutter curtain movement count counting unit 90 according to the present embodiment counts both the closing movement and the opening movement of the shutter curtain 1.

Further, in the present embodiment, the permanent magnets 93 arranged above and below the swing member 92 of the shutter curtain movement count counting unit 90 constituting the counting device main body 41 attached to the seat plate 1B of the shutter curtain 1. , 94 are reactants on which magnetic force acts. On the other hand, the permanent magnet 42 attached to the immovable member 13 is a working body for reacting the permanent magnets 93 and 94.

Then, the shutter curtain movement count counting unit 90 counts the number of opening / closing movements of the shutter curtain 1 when the permanent magnets 93 and 93 on which the magnetic force acts and the permanent magnets 42 approach each other as the shutter curtain 1 opens and closes. It has become a thing.

As described above, the shutter curtain movement count device 40 for counting (counting) both the closing movement count and the opening movement count of the shutter curtain 1 that can be opened and closed is the seat plate 1B of the shutter curtain 1. With a counting device main body 41 having two permanent magnets 93 and 94 and having a shutter curtain movement count counting unit 90 for counting both the closing movement number and the opening movement number of the shutter curtain 1 , Which is arranged on the magnifying glass member 13 forming the magnifying glass 11, and includes a permanent magnet 42 for reacting the permanent magnets 93 and 94. Then, the shutter curtain movement count unit 90 counts the number of opening / closing movements of the shutter curtain 1 when the permanent magnets 93 and 94 on which the magnetic force acts and the permanent magnets 42 approach each other as the shutter curtain 1 opens and closes. It has become a thing.

Next, the shutter curtain movement count counting device 40 shown in FIGS. 8 to 16 described above and the garage shutter device provided with the shielding member according to another embodiment will be described below with reference to FIGS. 17 to 33. ..

FIG. 17 is a diagram similar to FIG. 2 showing a garage shutter device provided with a shielding member according to the present embodiment.

The shielding member according to the present embodiment is arranged on the seat plate 1B of the shutter curtain 1 in the same manner as the shielding member 30 according to the above-described embodiment, but in the present embodiment, the shutter curtain movement count counting device 40 A part of the case 50 shown in FIG. 17 for accommodating the counting device main body 41 also serves as a shielding member.

As shown in FIG. 17, the resin or metal case 50 covers the base member 51 attached to the seat plate 1B and the base member 51, and the shutter curtain 1 with respect to the base member 51. It is configured to include a cover member 52 for swinging in the opening / closing direction of the above.

The position of the permanent magnet 42 in the left-right direction, which is the width direction of the shutter curtain 1 of the case 50, in which the counting device main body 41 in which the permanent magnets 93 and 94 (see FIG. 14) are arranged is housed. It is the same position as the arrangement position in the left-right direction or substantially the same position.

First, the shape and structure of the cover member 52 will be described.

FIG. 18 is a front view (in other words, a surface portion) of the cover member 52 of the case 50 shown in FIG. 17, and FIG. 19 is a rear view (in other words, a rear view) of the cover member 52 alone shown in FIG. And the back view). 20 is a cross-sectional view taken along the line S20-S20 of FIG. 19, and FIG. 21 is a plan view (in other words, a view seen from above) of the cover member 52 shown in FIG.

As can be seen from FIGS. 18 to 21, the cover member 52 has an upper surface portion 58, a front surface portion 59, a bottom surface portion 60, and left and right side surface portions 61 and 62.

The end portion of the upper surface portion 58 of the cover member 52 shown in FIG. 18 on the back side (in other words, the shutter curtain 1 side when arranged on the shutter curtain 1. the front side in FIG. 19) is shown in FIGS. As shown in FIG. 20, the curved portion 58A is curved downward (in other words, the closed side of the shutter curtain 1 when it is arranged on the shutter curtain 1).

Further, as shown in FIG. 20, the front portion 59 of the cover member 52 shown in FIG. 18 is on the back side (in other words, the shutter curtain 1 side when arranged on the shutter curtain 1. FIG. 19 Then, it is an inclined part that is inclined downward to the front side).

Then, the end portion of the upper surface portion 58 shown in FIG. 18 (in other words, the side opposite to the shutter curtain 1 side when arranged on the shutter curtain 1. the back side in FIG. 19) and FIG. The portion 66 (see FIG. 20) between the upper side (open side of the shutter curtain 1 when placed on the shutter curtain 1) end of the front portion 59 shown by 18 has a round shape. .. In other words, the connecting portion 66 between the upper surface portion 58 and the front surface portion 59 of the cover member 52 has a round shape as shown in FIG.

Further, as shown in FIG. 20, the bottom surface portion 60 of the cover member 52 shown in FIG. 18 is the back side (in other words, the shutter curtain 1 side when arranged on the shutter curtain 1). Then, it is an inclined part that is inclined downward to the front side).

Then, the lower end of the front portion 59 shown in FIG. 18 (in other words, the closed side of the shutter curtain 1 when arranged on the shutter curtain 1) and the bottom portion 60 shown in FIG. The portion 67 (see FIG. 20) between the front side (in other words, the side opposite to the shutter curtain 1 side when placed on the shutter curtain 1; the back side in FIG. 19) and the end portion has a round shape. It has become. In other words, the connecting portion 67 between the front portion 59 and the bottom surface portion 60 of the cover member 52 has a round shape as shown in FIG.

As can be seen from FIGS. 19 and 20, the upper ends of the left and right side surface portions 61 and 62 of the cover member 52 (in other words, the end portions on the opening side of the shutter curtain 1 when arranged on the shutter curtain 1) 61A and 62A. Is formed with through holes 61B and 62B.

Further, as can be seen from FIGS. 19 and 21, the left end which is one end of the upper end portion 61A of the left side surface portion 61 of the cover member 52 and both end portions of the curved portion 58A of the upper surface portion 58 in the width direction. There is a notch 68 (see also FIG. 20) between the portion 58B and the portion 58B. Similarly, between the upper end portion 62A of the right side surface portion 62 of the cover member 52 and the right end portion 58C which is the other end portion of both ends of the curved portion 58A of the upper surface portion 58 in the width direction. It is a notch 69.

In the present embodiment, the counting device main body 41 is attached to the back side of the upper part of the front portion 59 of the cover member 52 by the counting device main body mounting member whose specific structure will be described later. As can be seen from FIGS. 18 to 21, the above-mentioned shutter curtain movement count counting unit 90 constituting the attached counting device main body 41 is covered at a position corresponding to the mounting position of the counting device main body 41 on the upper portion of the front surface portion 59. An opening 63 for exposing the window portion 45A of the cover portion 45 to the outside is formed.

As can be seen from FIGS. 19 and 20, the peripheral edge of the opening 63 of the cover member 52 on the back side of the front portion 59 is the front side (in other words, the shutter curtain 1 side when arranged on the shutter curtain 1, FIG. 18). Then, the protruding portion 64 protruding to the back side) is formed over the entire length of the peripheral edge portion.

Further, as shown in FIG. 19, screw holes 65A are formed on the lateral side (side surface portion 61 side in FIG. 19) of the protruding portion 64 on the back side of the front portion 59 of the cover member 52. Two columnar portions 65 are formed.

As described above, the cover member 52 includes an opening 63 formed in the front surface portion 59 of the cover member 52, a protruding portion 64 formed in the entire peripheral portion of the opening portion 63, and two upper and lower columnar portions 65. It has a symmetrical shape and structure except for the part where is formed.

The opening 63 of the cover member 52 may or may not be covered with a transparent resin.

Next, the shape and structure of the base member 51 constituting the case 50 will be described.

FIG. 22 is a front view of the base member 51, and FIG. 23 is a cross-sectional view taken along the line S23-S23 of FIG.

As can be seen from FIGS. 22 and 23, the base member 51 includes a front portion 54, a bottom portion 55, and left and right side surface portions 56, 57, which are portions attached to the shutter curtain 1 by fasteners such as screws. have,

The front portion 54 is formed with left and right through holes 54A through which fasteners such as screws for attaching the base member 51 to the shutter curtain 1 are inserted.

Further, the bottom surface portion 55 is obliquely curved upward (in other words, is obliquely curved upward on the opposite side (front side in FIG. 22) of the shutter curtain 1 when it is arranged on the shutter curtain 1. ).

As can be seen from FIGS. 22 and 23, the vertical dimension of the front portion 54 is smaller than the vertical dimension of the left and right side surface portions 56, 57, in other words, the left and right side surface portions 56, 57 are the front portion 54. The shape protrudes upward from the upper side portion 54B, and therefore, the portion of the base member 51 above the upper side portion 54B of the front portion 54 is an opening portion 51A that opens upward.

Through holes 56B and 57B are formed in the upper ends of the left and right side surface portions 56 and 57 (in other words, the end portions on the opening side of the shutter curtain 1 when arranged on the shutter curtain 1) 56A and 57A. There is.

As described above, the base member 51 has a symmetrical shape and structure.

Next, the shape and structure of the counting device main body mounting member for mounting the counting device main body 41 of the shutter curtain movement count counting device 40 on the back side of the upper part of the cover member 52 will be described.

FIG. 24 is a front view of the counting device main body mounting member 80 according to the present embodiment for mounting the counting device main body 41 on the back side of the upper part of the cover member, and FIG. 25 is a side view of the counting device main body mounting member 80. 26 is a cross-sectional view of the S26-S26 fiber of FIG. 24.

As can be seen from FIGS. 24 to 26, the counting device main body mounting member 80 has a thin portion 81 on the right half and a thick portion 82 on the left half. The thin portion 81 is a portion to be attached to the cover member 52, and the thick portion 82 is a portion to which the counting device main body 41 is attached.

The thin portion 81 is formed with two upper and lower through holes 81A into which fasteners such as screws for attaching to the cover member 52 are inserted. On the other hand, of the thick portion 82, the front portion (in other words, the back surface portion 82B which is a surface portion arranged on the cover member 52 side when the counting device main body mounting member 80 is attached to the cover member 52 is opposite to the back surface portion 82B. The side surface portion) 82A has a shape and structure corresponding to or substantially corresponding to the protruding portion 44B (see FIGS. 11 to 13) of the counting device main body 41, and the recess (recessed portion 44B) into which the protruding portion 44B is inserted and fitted. In other words, the recessed portion) 82C is formed.

To attach (in other words, fix) the counting device main body 41 to the counting device main body mounting member 80, first, as shown in FIG. 27, first attach the counting device main body 41 to the back surface portion (in other words, the back surface) of the counting device main body 41. After arranging the counter portion) so as to be in the same direction as the front portion 82A of the thick portion 82 of the counting device main body mounting member 80, the protruding portion 44B of the counting device main body 41 is slid in the direction of the arrow to count. It may be inserted and fitted into the recess 82A of the thick portion 82 of the device main body mounting member 80.

In the present embodiment, after that, the counting device main body mounting member 80 in which the counting device main body 41 is inserted and fitted into the recess 82A as described above is attached to the back side of the upper portion of the cover member 52.

FIG. 28 is a view similar to FIG. 19 showing a case where the counting device main body mounting member 80 to which the counting device main body 41 is attached is attached to the back side of the upper portion of the cover member 52, and FIG. 29 is a view similar to FIG. FIG. 30 is a cross-sectional view taken along the line S30-S30 of FIG. 28.

The two upper and lower through holes 81A (see FIGS. 24 and 25) formed in the thin portion 81 of the counting device main body mounting member 80 are formed on the lateral side of the protruding portion 64 on the back side of the front portion 59 of the cover member 52. It corresponds to the screw holes 65A (see FIG. 19) formed in the two upper and lower columnar portions 65.

As can be seen from FIGS. 28 and 29, the counting device main body mounting member 80 to which the counting device main body 41 is attached is attached to the cover member 52 by two upper and lower parts formed on the thin portion 81 of the counting device main body mounting member 80. Each position of the through hole 81A is the position of each of the screw holes 65A formed in the upper and lower columnar portions 65 formed on the lateral side of the protruding portion 64 on the back side of the front portion 59 of the cover member 52. After combining with, a fastener 83 such as a screw is inserted into each of the upper and lower two through holes 81A and screwed into the upper and lower two screw holes 65A.

As a result, as shown in FIG. 30, the window portion 45A of the cover portion 45 for covering the shutter curtain movement count counting portion 90 (see FIG. 14) constituting the main body portion 43 of the counting device main body 41 is covered. Since the shutter curtain 1 is exposed from the opening 63 formed in the member 52 (see also FIG. 18), the number of movements of the shutter curtain 1 counted by the shutter curtain movement count counting unit 90 can be grasped from the outside of the cover member 52. Will be.

In the present embodiment, after that, the cover member 52 to which the counting device main body 41 is attached by the counting device main body mounting member 80 is attached to the base member 51 attached to the seat plate 1B of the shutter curtain 1.

FIG. 31 shows a part of the cover member 52 broken to show the internal structure of the case 50 including the base member 51 and the cover member 52 described above in a state of being attached to the seat plate 1B. It is a figure shown. In FIG. 31, the display of the shutter curtain 1 to which the case 50 is attached is omitted. Further, FIG. 32 is a diagram showing the internal structure of the case 50 (the display of the counting device main body 41 is omitted) as shown in FIG.

As shown in FIG. 19, the width dimension of the curved portion 58A of the upper surface portion 58 of the cover member 52 is W1, and the width dimension between the left and right side surface portions 61 and 62 of the cover member 52 is between the inner side surface portions. The width dimension is W2. Further, as shown in FIG. 22 described above, the width dimension between the inner side surface portions of the left and right side surface portions 56, 57 of the base member 51 is W3, and the left and right side surface portions 56, 57 of the base member 51. The width dimension between the outer surface portions of the above is W4.

In the present embodiment, the width dimension W1 of the cover member 52 shown in FIG. 19 is smaller than the width dimension W3 of the base member 51 shown in FIG. 22, and the width dimension W4 of the base member 51 shown in FIG. 22 and the cover member. It is smaller than the width dimension W2 of 52.

Therefore, as can be seen from FIGS. 31 and 32, when the cover member 52 is attached to the base member 51, the left and right side surface portions 56 and 57 of the base member 51 are the left and right side surface portions 61 of the cover member 52. , 62 is placed inside. In other words, when the cover member 52 is attached to the base member 51, the cover member 52 is arranged so as to cover the base member 51.

As can be seen from FIGS. 31 and 32, the cover member 52 is attached to the base member 51 from the outside of the cover member 52 through a through hole 61B formed in the upper end portion 61A of the left side surface portion 61 of the cover member 52. The nut 72 is screwed into the shaft portion 53A of the bolt 53 inserted into the through hole 56B formed in the upper end portion 56A of the left side surface portion 56 of the base member 51, and the cover is inserted from the outside of the cover member 52. The shaft portion of the bolt 53 inserted into the through hole 62B formed in the upper end portion 62A of the right side surface portion 62 of the member 52 and the through hole 57B formed in the upper end portion 57A of the right side surface portion 57 of the base member 51. This is done by screwing the nut 72 into 53A.

As a result, as can be seen from FIGS. 31 and 32, the cover member 52 is a base attached to the seat plate 1B of the shutter curtain 1 by a fastener 71 such as a screw, centering on the shaft portion 53A of the left and right bolts 53. The shutter curtain 1 can swing freely in the opening / closing direction with respect to the member 51. That is, the cover member 52 is centered on the shaft portion 53A of the left and right bolts 53 arranged at the opening side end portion (in other words, the upper end portion) of the shutter curtain 1 in the base member 51 in the opening / closing direction of the shutter curtain 1. It becomes swingable.

Therefore, in the present embodiment, the shaft portion 53A of the left and right bolts 53 is the swing center axis of the cover member 52.

As can be seen from FIGS. 31 and 32, there is a torsion coil spring which is an elastic member between the upper end portion 56A of the left side surface portion 56 of the base member 51 and the nut 72 in the shaft portion 53A of the left bolt 53. 70 is arranged, and one end 70A of the torsion coil spring 70 penetrates the opening 51A formed in the base member 51 and is locked to the curtain body 1A on the seat plate 1B, and the other end 70B. Is locked to the back surface of the connecting portion 66 of the cover member 52. Similarly, a torsion coil spring 70 is also arranged between the upper end portion 57A of the right side surface portion 57 of the base member 51 and the nut 72 in the shaft portion 53A of the right bolt 53, and this torsion coil spring 70. One end 70A of 70 also penetrates the opening 51A formed in the base member 51 and is locked to the curtain body 1A on the seat plate 1B, and the other end 70B is also the back surface of the connecting portion 66 of the cover member 52. Is locked in. The torsion coil spring 70 as shown in FIG. 32 is not in a state where the spring force is accumulated.

As described above, between the upper end portion 61A of the left side surface portion 61 of the cover member 52 and the left end portion 58B which is one end of both ends of the curved portion 58A of the upper surface portion 58 in the width direction. As shown in FIG. 31, the cutout portion 68 (see also FIGS. 19 and 21; in FIG. 19, the cutout portion 68 is displayed on the right side). Similarly, between the upper end portion 62A of the right side surface portion 62 of the cover member 52 and the right end portion 58C which is the other end portion of both ends of the curved portion 58A of the upper surface portion 58 in the width direction. As shown in FIG. 31, it is a notch 69 (see also FIGS. 19 and 21; in FIG. 19, the notch 69 is displayed on the left side).

As a result, as can be seen from FIG. 31, when the cover member 52 swings, the curved portion 58A of the upper surface portion 58 of the cover member 52 becomes the upper end portions 56A, 57A of the left and right side surface portions 56, 57 of the base member 51. It is designed not to interfere with.

In the present embodiment, the cover member 52 attached to the seat plate 1B of the shutter curtain 1 is, in other words, an obstacle to the cover member 52 unless there is a member that comes into contact with the cover member 52. Will maintain the posture shown in FIG. 32 unless is present.

FIG. 33 is a diagram similar to FIG. 6 showing the seat plate 1B, the case 50, and the permanent magnet 42 which is the action body of the shutter curtain movement count counting device 40 when the shutter curtain 1 is moved to the fully open position in the present embodiment. Is.

When the shutter curtain 1 shown in FIG. 17 opens and moves, and the curtain body 1A on the seat plate 1B of the shutter curtain 1 reaches the height position of the slit 14 of the magnet 11 or its vicinity thereof, FIG. 32 Of the cover member 52 of the case 50 shown in FIG. 5, the connection portion 66 between the upper surface portion 58 and the front surface portion 59 is attached to the bottom surface portion 5A of the shutter box 5 to which the magnet member 13 is attached. It comes into contact with the permanent magnet mounting member 49 (the portion 49A that faces and contacts the bottom surface portion 5A of the shutter box 5), which is the immovable member shown in 33.

As described above, since the connecting portion 66 between the upper surface portion 58 and the front surface portion 59 of the cover member 52 has a round shape, the shutter curtain 1 is further opened and moved, so that the permanent magnet is attached to the connecting portion 66. Since the downward pressure contact force from the mounting member 49 acts, the cover member 52 swings in the direction of arrow C (in other words, the direction approaching the shutter curtain 1) shown in FIG. 33 and FIG. 32 described above. It will be.

After that, when the shutter curtain 1 is further opened and moved, the cover member 52 swings until it reaches the state shown in FIG. 33, and the front portion 59 of the cover member 52 is subjected to the permanent magnet mounting member 49 ( The magnet members 12 and 13 which are storage spaces for accommodating the seat plate 1B of the shutter curtain 1 together with the seat plate 1B of the shutter curtain 1 while in contact with the side surface portion 13A of the magnet member 13 and in contact with the portion 49B). It will be stored in the slit 14 between them.

Then, as shown in FIG. 33, when the shutter curtain 1 opens and moves to the fully opened position, the cover member 52 is completely housed inside the slit 14 and the shutter box 5 together with the seat plate 1B of the shutter curtain 1. It will be in the state of being.

As the cover member 52 swings in the direction of arrow C, a spring force (in other words, a repulsive force) is accumulated in the torsion coil spring 70. Therefore, when the cover member 52 is housed in the slit 14, the cover member 52 is a portion where the front portion 59 of the cover member 52 faces and contacts the permanent magnet mounting member 49 (the side surface portion 13A of the forage member 13). The state of contact with 49B) is maintained.

On the other hand, when the shutter curtain 1 closes and moves from the fully open position shown in FIG. 33, the cover member 52 separates from the slit 14 and moves away from the shutter curtain 1 due to the spring force accumulated in the torsion coil spring 70. It swings in the direction of arrow D shown in FIGS. 32 and 33 until the state shown in FIG. 32 is reached.

In the present embodiment described above, of the left and right side surface portions 61 and 62 of the cover member 52 of the case 50 for accommodating the counting device main body 41 of the shutter curtain movement count counting device 40, the right side surface portion 61 shields. It also serves as a member.

Therefore, according to the present embodiment, it is not necessary to separately prepare a shielding member in addition to the case for accommodating the counting device main body 41 of the shutter curtain movement count counting device 40, so that the number of parts of the shutter device for the garage is increased accordingly. Can be reduced.

Further, according to the present embodiment, the size of the cover member 52 of the case 50 which also serves as the shielding member arranged in the shutter curtain 1 is the same as that of the optical obstacle detection device 15 as in the above-described embodiment having the shielding member 30. Even if the size increases due to the positional relationship, when the shutter curtain 1 opens to the fully open position and moves, the cover member 52 is moved together with the shutter curtain 1 inside the slit 14 and the shutter box 5, which are storage spaces for storing the shutter curtain 1. It will be possible to store it in.

On the other hand, when the shutter curtain 1 closes and moves from the fully open position, the cover member 52 is separated from the inside of the slit 14 and the shutter box 5, and a spring force (in other words, an elastic force) in a direction away from the shutter curtain 1 is applied. The torsion coil spring 70, which is the accumulated rocking urging means, swings in the direction away from the shutter curtain 1.

As a result, the right side surface portion 62 of the cover member 52 that also serves as a shielding member can shield the optical axis 20 of the light emitted from each of the plurality of light projecting portions 18 while the shutter curtain 1 is closing and moving. It will be ready. That is, the right side surface portion 62 of the cover member 52 is in a state of being able to exert a function as a shielding member after being separated from the inside of the slit 14 and the shutter box 5.

In the present embodiment described above, the swing center shaft of the cover member 52 is not composed of the shaft portion 53A of the two left and right bolts 53, but is configured by the shaft portion of one bolt. May be good. In this case, the shaft portion of the bolt includes through holes 61B and 62B formed in the left and right side surface portions 61 and 62 of the cover member 52 and through holes 56B formed in the left and right side surface portions 56 and 57 of the base member 51. , 57B must be inserted and have a length dimension that can be erected on these side surfaces.

Further, in the present embodiment described above, the cover member 52 may be first attached to the base member 51, and then the base member 51 to which the cover member 52 is attached may be attached to the seat plate 1B.

In the present embodiment described above, as can be seen from FIGS. 22 and 23, the vertical dimension of the front portion 54 of the base member 51 is smaller than the vertical dimension of the left and right side surface portions 56 and 57, in other words. The left and right side surface portions 56 and 57 have a shape that protrudes upward from the upper side portion 54B of the front portion 54. Therefore, the portion of the base member 51 above the upper side portion 54B of the front portion 54 is formed. Although the opening 51A is open upward, the vertical dimension of the front portion 54 of the base member 51 may be the same as or substantially the same as the vertical dimension of the left and right side surface portions 56 and 57. That is, the base member 51 does not have to have a shape and structure having an opening 51A.

In this case, one end 70A of the torsion coil spring 70 shown in FIG. 32 is locked to the front portion 54 of the cover member 52.

34 is a plan view of another embodiment of the cover member 52 according to the embodiment shown in FIGS. 17 to 33, and FIG. 35 is a front view of the other embodiment.

In the embodiment shown in FIGS. 17 to 33 described above, when the cover member 52 is housed in the slit 14 by opening and moving the shutter curtain 1 to the fully open position, or when the shutter curtain 1 is closed and moved from the fully open position. When the cover member 52 is separated from the slit 14, the entire surface of the connecting portion 66 and the front portion 59 of the cover member 52 faces and contacts the permanent magnet mounting member 49 (the portion 49A that faces and contacts the bottom surface portion 5A of the shutter box 5). In addition, it comes into contact with the portion 49B) that faces and contacts the side surface portion 13A of the magnet member 13.

Therefore, the entire surface of the connecting portion 66 and the front portion 59 of the cover member 52 may rub against the permanent magnet mounting member 49 and be worn (in other words, damaged).

The cover member 52 according to the present embodiment shown in FIGS. 34 and 35 has a smaller portion where it rubs against the permanent magnet mounting member 49 and is worn out.

In the present embodiment, the shutter curtain 1 on the surfaces of the upper surface portion 58 (see FIG. 34), the connecting portion 66 (see FIG. 34), the front portion 59 (see FIG. 35), and the bottom surface portion 60 (see FIG. 35) of the cover member 52. At both ends in the width direction (in other words, the left-right direction) of the shutter curtain 1, elongated convex portions 85 having a length in the opening / closing direction (in other words, the vertical direction) of the shutter curtain 1 are formed in the entire length in the opening / closing direction of the shutter curtain 1. It is formed across.

Therefore, according to the present embodiment, the portion of the cover member 52 that rubs against the permanent magnet mounting member 49 and wears can be limited to the elongated convex portion 85.

36 is a plan view of another embodiment of the cover member 52 according to the embodiment shown in FIGS. 17 to 33, and FIG. 37 is a front view of the further embodiment.

As shown in FIGS. 36 and 37, the convex portion 85 includes an upper surface portion 58 (see FIG. 36), a connecting portion 66 (see FIG. 36), a front portion 59 (see FIG. 37) and a front portion 59 (see FIG. 37) of the cover member 52. It may be formed at a position closer to the center portion in the width direction of the shutter curtain 1 from both ends in the width direction of the shutter curtain 1 on the surface of the bottom surface portion 60 (see FIG. 37).

The convex portion 85 is formed with a central portion or a substantially central portion (opening portion 63) in the width direction of the shutter curtain 1 on the surfaces of the upper surface portion 58, the connecting portion 66, the front portion 59, and the bottom surface portion 60 of the cover member 52. It may be formed only in the part).

In the embodiment shown in FIGS. 34 and 35 and the embodiment shown in FIGS. 36 and 37 described above, the convex portion 85 is the upper surface portion 58, the connecting portion 66, the front portion 59, and the bottom surface portion of the cover member 52. Although it was formed on the surface of 60, the convex portion 85 abuts on at least the permanent magnet mounting member 49, which is an immovable member, when the shutter curtain 1 opens and moves to the fully open position among the cover members 52. It may be formed on the surface of the portion.

That is, in the present embodiment, when the shutter curtain 1 opens to the fully open position and moves, it is the surfaces of the connecting portion 66 and the front portion 59 of the cover member 52 that come into contact with the permanent magnet mounting member 49, so that the convex portion The 85 may be formed at least on the surfaces of the connecting portion 66 and the front surface portion 59 of the cover member 52.

The convex portion 85 formed on the surface of the cover member 52 described above may be integrated with the cover member 52 (in other words, may be integrally molded with the cover member 52), or may be integrally molded with the cover member 52. It may be separate from.

The vertical dimensions of the shielding member 30 and the cover member 52 of the case 50 that also serves as the shielding member (in other words, the dimensions in the opening / closing direction of the shutter curtain 1) are the dimensions of the two light projecting portions 18 that are adjacent to each other in the vertical direction. The dimensions were such that the optical axis 20 of the light emitted from each could be blocked at the same time, but the vertical dimensions of the shielding member 30 and the cover member 52 of the case 50 that also serves as the shielding member were emitted from one light projecting unit 18. The dimensions may be such that only the optical axis 20 of the light is blocked.

The shape and structure of the shielding member are not limited to the shape and structure of the shielding member 30 described above and the cover member 52 of the case 50 that also serves as the shielding member.

In each of the above-described embodiments, in addition to the optical obstacle detection device 15, an obstacle detection switch that operates when the shutter curtain 1 comes into contact with an obstacle may be provided on the seat plate 1B. In other words, in each of the above-described embodiments, in addition to the optical obstacle detection device 15, a contact-type obstacle detection device may be provided.

INDUSTRIAL APPLICABILITY The present invention provides various opening / closing devices such as a shutter device in which a shutter curtain is an opening / closing body, an oversliding door (overhead door) device in which a sliding door is an opening / closing body, a smoke-proof hanging wall device, and a sliding door device. Can be used for.

1 Shutter curtain 2 Doorway that is an opening 4, 4A, 4B Guide rail that is a guide member 5 Shutter box that is a storage space 5A Bottom part of the shutter box that is an immovable member 9 Control device 11 Magusa 13 Magusa that is an immovable member Member 14 Slit, which is a storage space 15 Optical obstacle detection device 16 Light emitting means 17 Light receiving means 18 Light emitting part 19 Light receiving part 20 Optical axis 20
30 Shielding member 31 First part forming the extension part of the shielding member 32 Second part forming the extension part of the shielding member 32A Shutter in the second part which is an inclined part inclined toward the closing side of the shutter curtain 1. Side part on the opening side of the curtain 33 Third part of the shielding member that is a means of regulating swing 34 Hinge 35 Hinge shaft part that is the swing center axis of the shielding member 36 First blade part 37 Second blade part 38, 70 Torsion coil spring 38A, 70A, which is an elastic member serving as a swing urging means One end of a torsion coil spring 38B, 70B The other end of a torsion coil spring 40 Counting device body 42 Permanent magnet that is an actuator 49 Permanent magnet mounting member that is an immovable member 50 Case 51 Base member 52 Cover member 53A Bolt shaft that is the swing center axis of the cover member 58 Top surface of the cover member 59 Cover member 62 Side part of the cover member that also serves as a shielding member 63 Opening for exposing the counting device body to the outside 66 Connection part between the upper surface part and the front part of the cover member 85 Convex part 90 Opening / closing body movement count counting part Shutter curtain movement count counting unit 93,94 Permanent magnet that is a reactant

Claims (9)

An opening and closing body that can be opened and closed and
A control device for driving and controlling the opening / closing body,
In the opening opened / closed by the opening / closing body or in the vicinity of the opening / closing body, the opening / closing is arranged on one side of both sides in the width direction of the opening / closing body which is orthogonal to or substantially orthogonal to the opening / closing direction of the opening / closing body. A light projecting means having a plurality of light projecting units arranged at intervals in the direction and a light projecting unit arranged on the other side to receive light emitted from each of the plurality of light projecting units. A light receiving means including a plurality of light receiving portions arranged at intervals in the opening / closing direction and an optical axis of the light emitted from the light projecting portion are located in or near the opening. An optical obstacle detection device having an obstacle determination means for inputting an obstacle detection signal to the control device when blocked by an existing obstacle.
It is arranged at or near the closed end of the opening / closing body, and shields the optical axis of the light emitted from each of the plurality of light projecting portions during the closing movement of the opening / closing body. Shielding member for
Consists of, including
According to the obstacle determination means, among the plurality of light projecting units, the light projecting unit whose optical axis is shielded by the shielding member is said to have passed the opening / closing body which is moving by closing the light projecting unit. In the opening / closing device that makes a determination and ignores the optical axis of the light emitted from the light projecting unit.
The shielding member is swingable with respect to the opening / closing body about the swing center axis in the width direction or the opening / closing direction of the opening / closing body, and is moved away from the opening / closing body by the swing urging means. It is oscillating in the direction and is urged.
When the opening / closing body opens and moves to the fully opened position, the shielding member approaches the opening / closing body by abutting on the immovable member forming the side portion of the opening / closing body on the opening side. While swinging, it is stored in the storage space for storing the opening / closing body.
When the switchgear closes and moves from the fully open position, the shield member separates from the storage space and swings in a direction away from the switchgear by the swing urging means. .. In the opening / closing device according to claim 1, the shielding member has an extending portion extending in a direction having a component outside the thickness direction of the opening / closing body, and the opening side of the opening / closing body in the extending portion. Of the side portions, at least the portion that comes into contact with the immovable member when the opening / closing body opens and moves to the fully opened position is an inclined portion that is inclined toward the closing side of the opening / closing body, and the shielding member is The swinging center axis is swingable with respect to the switchgear in the width direction of the switchgear, and the swing urging means is provided between the switchgear and the shielding member. A switchgear characterized by being an arranged elastic member. In the opening / closing device according to claim 2, the shielding member is formed by bending a plate material, and the extending portion is a planar first portion of the opening / closing body extending outward in the thickness direction, and the first portion thereof. It is composed of a planar second portion that curves from the tip of the portion to one of the two sides of the opening / closing body in the width direction, and at least one of the opening-side side portions of the opening / closing body in the second portion. The portion that comes into contact with the immovable member when the opening / closing body opens and moves to the fully open position is the inclined portion that is inclined toward the closing side of the opening / closing body, and the shielding member is via a hinge. The opening / closing body is swingably attached to the opening / closing body in the width direction of the opening / closing body, and the hinge is attached to a shaft portion serving as the swing center axis and the first portion of the shielding member. The elastic member is a torsion coil spring arranged on the shaft portion, and one end of the torsion coil spring is the first. An opening / closing device characterized in that one blade portion is locked and the other end is locked to the second blade portion. In the switchgear according to claim 3, the shield member has a planar third portion that bends from the rear end of the first portion to the other side of the switchgear on both sides in the width direction. The third portion is a switchgear that serves as a swing regulating means for regulating the swing of the shielding member. The opening / closing device according to claim 1 includes an opening / closing body movement count counting device for counting the number of movements of the opening / closing body, and the opening / closing body movement count counting device includes the opening / closing body and the immovable member. Of these, a counting device main body that is arranged on one side and has a reactant and is provided with an opening / closing body movement count counting unit for counting the number of movements of the opening / closing body, and a counting device main body that is arranged on the other side and reacts with the reactant. The opening / closing body movement count counting unit is configured to include an action body for causing the opening / closing body to move, and the opening / closing body is moved so that the reaction body on which a magnetic force acts and the working body come close to each other to open / close the opening / closing body. An opening / closing device characterized in that it counts the number of times the body moves. In the switchgear according to claim 5, the counting device main body is housed inside a case arranged in the switchgear, and the case includes a base member attached to the switchgear and the base member. The cover member is configured to include, and the cover member is the opening / closing body of the opening / closing body centered on the swing center axis arranged at the opening side end of the opening / closing body of the base member. A switchgear that is swingable in the opening / closing direction, and the swing urging means is an elastic member arranged between the switchgear or the base member and the cover member. In the opening / closing device according to claim 6, the elastic member is a torsion coil spring arranged on the swing center axis, and one end of the torsion coil spring is locked to the opening / closing body or the base member, and the like. it ends are engaged with the cover member, the connecting portion between the upper surface portion and the positive surface of the cover member, has a round shape, the shielding member is a side section forming the cover member An opening and closing device characterized by. In the switchgear according to claim 7 , the counting device main body is arranged on the back side of the front portion of the cover member, and the front portion has an opening for exposing the counting device main body to the outside. A switchgear characterized by being formed. In the opening / closing device according to any one of claims 6 to 8, at least the surface of the portion of the cover member that comes into contact with the immovable member when the opening / closing body opens and moves to the fully opened position is opened / closed. An opening / closing device characterized in that an elongated convex portion having a length in the opening / closing direction of the body is formed over the entire length in the opening / closing direction or substantially the entire length.

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