JP7416880B2 - switchgear - Google Patents

Description

The present invention relates to an opening/closing device, such as a shutter device, an overhead door, a roll blind device, a sliding door device, or a sliding gate, which closes an opening/closing body so as to partition a space.

Conventionally, this type of invention includes an opening/closing body (sheet body) that operates to close by partitioning a space, and a sheet body that surrounds both ends of the opening/closing body in the width direction, as described in Patent Document 1, for example. Two guide rails that guide in the opening/closing direction, an obstacle detection sensor (photoelectric area sensor) that forms a plurality of light beam paths (infrared beams) lined up and down in the vertical direction between these two guide rails, and this obstacle detection sensor. There is a shutter device that includes a control circuit that controls the operation of the opening/closing body in response to a sensing signal, and a storage section (shutter case) that stores the opening/closing body on the opening direction side.
The obstacle detection sensor includes a transmitting unit that emits light beams from a plurality of light projecting sections provided on one guide rail, and a capture unit that captures the plurality of light beams by a plurality of light receiving sections provided on the other guide rail. and transmits a sensing signal from the capture unit to a control circuit by electrical wiring when any of the plurality of light beam paths is interrupted.

Japanese Patent Application Publication No. 2010-77752

By the way, according to the shutter device, the signal cable from the capture unit to the control circuit is significantly longer than other electrical wiring, so the obstacle sensing performance is degraded due to electrical resistance, electrical noise, etc. There is a risk that it will decrease.

In view of such problems, the present invention includes the following configuration.
An opening/closing body that operates to close by partitioning a space, two guide rails that respectively surround both ends of the opening/closing body in the width direction and guide it in the opening/closing direction, and an opening/closing body that prevents obstacles on the side of the opening/closing body in the closing direction. an obstacle detection sensor that senses contact; a storage section that stores the opening/closing body on its opening direction side; and a control section that controls opening/closing operations of the opening/closing body in accordance with a signal from the obstacle detection sensor within the storage section. Equipped with
The obstacle detection sensor is configured to form a light beam path extending in the width direction of the opening/closing body, and to transmit a signal caused by the interruption of this light beam path to the control unit via electric wiring,
The control section is provided on one side in the width direction of the opening/closing body in the storage section, and at least a part of the electric wiring is provided along the guide rail located on the one side ,
The guide rail has a guide space that is an opening/closing path of the opening/closing body, and a storage space that is a separate space partitioned off from the guide space and that stores the obstacle detection sensor,
An opening/closing device characterized in that a partition wall is provided to partition the guide space and the storage space, and the partition wall is provided with a light passage hole through which the light beam path passes .
Further, the present invention includes the following configuration.
An opening/closing body that operates to close by partitioning a space, two guide rails that respectively surround both ends of the opening/closing body in the width direction and guide it in the opening/closing direction, and an opening/closing body that prevents obstacles on the side of the opening/closing body in the closing direction. an obstacle detection sensor that senses contact; a storage section that stores the opening/closing body on its opening direction side; and a control section that controls opening/closing operations of the opening/closing body in accordance with a signal from the obstacle detection sensor within the storage section. Equipped with
The obstacle detection sensor is configured to form a light beam path extending in the width direction of the opening/closing body, and to transmit a signal caused by the interruption of this light beam path to the control unit via electric wiring,
The control section is provided on one side in the width direction of the opening/closing body in the storage section, and at least a part of the electric wiring is provided along the guide rail located on the one side,
The guide rail has a guide space that is an opening/closing path of the opening/closing body, and a storage space that is a separate space partitioned off from the guide space and that stores the obstacle detection sensor,
The guide rail includes a guide rail main body having the guide space, and a fixed support column connected to the guide rail main body and fixed to an immovable part,
The storage space is provided in the fixed column,
The guide rail main body is detachably connected to the fixed support, and opens the storage space when removed from the fixed support, and the guide rail main body is connected to the fixed support on the indoor side of the opening/closing body. An opening/closing device comprising: a detachable part that is detachably attached to the opening/closing body; and a hook part that is hooked to the fixed column on the outdoor side of the opening/closing body.

Since the present invention is configured as described above, it is possible to obtain good obstacle sensing performance.

It is a front view showing an example of the opening and closing device concerning the present invention. FIG. 2 is a cross-sectional view taken along line (II)-(II) in FIG. 1. FIG. It is a cross-sectional view of the same location, showing a state in which the guide rail main body, obstacle detection sensor, etc. are removed from the fixed support. FIG. 2 is a diagram of the guide rail main body, obstacle detection sensor, etc. seen from the front side of the opening/closing device. 3 is a sectional view taken along the line (V)-(V) in FIG. 2. FIG. 3A is a front view and FIG. 3B is a right side view showing the lower end of the opening/closing body on the widthwise end side; FIG. FIG. 7 is a cross-sectional view of a main part of another example of the guide rail, showing a state in which the guide rail main body, obstacle detection sensor, etc. are removed. FIG. 7 is a diagram of another example of the opening/closing device according to the present invention, as seen from the front side of the guide rail of the opening/closing device. 9 is a sectional view taken along the line (IX)-(IX) in FIG. 8. FIG. FIGS. 3A and 3B are plan views showing other examples of light passing holes, respectively. FIGS. It is a front view which shows the aspect which arrange|positioned the connection part in the guide rail about the opening/closing device based on this invention. FIG. 8 is a cross-sectional view of the main parts of the modified example of the guide rail shown in FIG. 7, with the guide rail main body, obstacle detection sensor, etc. removed.

This embodiment discloses the following features.
The first feature is an opening/closing body that operates to close by partitioning a space, two guide rails that respectively surround both ends of the opening/closing body in the width direction and guide the opening/closing body in the closing direction, and an obstacle detection sensor that non-contactly senses an obstacle on the side; a storage section that stores the opening/closing body on its opening direction side; and an opening/closing operation of the opening/closing body in response to a signal from the obstacle detection sensor within the housing section. and a control section for controlling the object, and the obstacle detection sensor is configured to form a light beam path that goes in the width direction of the opening/closing body, and to transmit a signal caused by the interruption of this light beam path to the control section through electric wiring. The control unit is provided on one side in the width direction of the opening/closing body in the storage portion, and at least a part of the electric wiring is provided along the guide rail located on the one side (see FIG. 1). ).
Here, the above-mentioned "ray path toward the width direction of the opening/closing body" includes a mode in which the light ray path is slightly inclined in the thickness direction of the opening/closing body and heading in the width direction of the opening/closing body, or a mode in which the said ray path is slightly inclined in the opening/closing direction of the opening/closing body. This includes a mode in which the opening/closing body is moved in the width direction.

As a second feature, the guide rail has a guide space that is an opening/closing path of the opening/closing body, and another space partitioned off from the guide space, and the other space is connected to the electrical wiring. (See Figures 2 and 9).

As a third characteristic. The obstacle detection sensor includes a transmitting unit that transmits a signal when an obstacle is detected to the electrical wiring, and this transmitting unit is located in the storage space (see FIG. 2).

As a fourth feature, a partition wall is provided to partition the guide space and the storage space, and the partition wall is provided with a light passage hole through which the light beam path passes (see FIG. 2).

As a fifth feature, the guide rail includes a guide rail main body having the guide space, and a fixed column connected to the guide rail main body and fixed to an immovable part, and the fixed column has A space is provided (see FIGS. 2 and 9).

As a sixth feature, the guide rail main body is formed to have a substantially concave cross section with the guide space inside, and its bottom wall partitions the guide space and the storage space (Fig. 2 reference).

As a seventh feature, the guide rail main body is detachably connected to the fixed column, and opens the storage space when removed from the fixed column (see FIGS. 3, 7, and 12). ).

As an eighth feature, the guide rail body includes a detachable part that is removably attached to the fixed column on the indoor side of the opening and closing body, and a detachable part that is attached to the fixed column on the outdoor side of the opening and closing body. (See FIGS. 7 and 12).

As a ninth feature, the storage space is provided with a connection part that connects the electrical wiring in a detachable manner (see FIG. 11).

<Specific embodiment>
Next, a specific embodiment having the above characteristics will be described in detail based on the drawings.
In addition, in the following description, "the opening-and-closing body thickness direction" means the thickness direction of the opening-and-closing body in a closed state. Furthermore, the term "width direction of the opening/closing body" means a direction substantially orthogonal to the opening/closing direction of the opening/closing body, but not the thickness direction of the opening/closing body. Moreover, the "opening/closing body opening/closing direction" means the direction in which the opening/closing body slides to partition or open a space.

The opening/closing device 1 includes an opening/closing body 10 that performs a closing operation to partition a space, two guide rails 20, 20 that respectively surround both ends of the opening/closing body 10 in the width direction and guide it in the opening/closing direction, and the opening/closing body 10. An obstacle detection sensor 30 that non-contact detects obstacles on the closing direction side; a storage section 40 that stores the opening/closing body 10 on the opening direction side; A control section 44 is provided to control the opening/closing operation of the opening/closing body 10 accordingly.

The opening/closing body 10 constitutes the opening/closing body 11 by connecting a plurality of slats 11a formed by bending a horizontally long substantially rectangular metal plate so as to rotate between vertically adjacent slats 11a, 11a. A fixed seat plate 12 is connected to the lower end of the opening/closing body 11, and a movable seat plate 13 is connected to the lower end of the fixed seat plate 12 so as to be movable in the vertical direction (FIGS. 1 and 6). reference).

A slip-off preventing member 14 is provided at the end of the opening/closing body 10 in the width direction to prevent it from slipping off from the guide rail 20 (see FIGS. 2 and 6).
The slip-off prevention member 14 protrudes from the end of the opening/closing body 10 in the width direction, and integrally has a portion extending in the width direction of the opening/closing body on its tip side (see FIG. 2).

Closing members 15, 16, and 17 are provided on the lowermost slat 11a, the movable seat plate 13, and the fixed seat plate 12, respectively (see FIG. 6).
These closing members 15, 16, and 17 are attached to the end sides of the slat 11a, the movable seat plate 13, and the fixed seat plate 12, respectively, so as to block the space communicating in the width direction inside the lower end side of the opening/closing body. ing.
During the normal closing operation of the opening/closing body 10, these blocking members 15, 16, and 17 sequentially block two beam paths R formed by an obstacle detection sensor 30, which will be described later, to perform blanking control. I'm trying to get it done. Here, blanking control means that each time the two light beam paths R are blocked by the closing members 15, 16, 17 during the closing operation of the opening/closing body 10, the light beam closest to the lower side of these two light beam paths R is This control disables obstacle detection on route R and above, so that the opening/closing body 10 itself is not detected as an obstacle.

The center of the opening/closing body 10 in the thickness direction coincides or substantially coincides with the centers of the many light ray paths R.
According to this configuration, the light-receiving surface 30b1 (or light-emitting surface 30a1) of the obstacle detection sensor 30, which will be described later, can be covered and protected by the end surface in the width direction of the opening/closing body 10, and in turn, the light-receiving surface 30b1 (or It is possible to prevent dirt, foreign matter from attaching to the light projection surface 30a1), and damage to the light projection surface 30a1).
In addition, when replacing the opening/closing body 10 of the illustrated example with an opening/closing body having a solid interior, the closing members 15, 16, and 17 can be omitted.

As shown in FIG. 1, the storage section 40 includes a winding shaft 42 for winding up and unwinding the opening/closing body 10, and a winding shaft 42 for winding up and unwinding the opening/closing body 10, and a storage case 41 having an opening at the bottom for allowing the opening/closing body 10 to appear and disappear. An opening/closing machine 43 that drives and rotates and brakes the shaft 42 via a power transmission mechanism such as a chain and a sprocket, and a control that controls the opening/closing machine 43 in response to signals from a remote controller (not shown) or an obstacle detection sensor 30, etc. 44.

The storage case 41 is formed in the shape of a rectangular parallelepiped box that is elongated in the width direction of the opening/closing body and has a hollow interior. Inside this storage case 41, an opening/closing device 43, a control section 44, etc. are arranged on one side in the width direction of the opening/closing body (on the left according to FIG. 1).

The control unit 44 is an electronic circuit including, for example, a microcomputer, and functions according to a pre-stored program to process the input signal from the obstacle detection sensor 30 and control the opening/closing machine 43 according to the processing result. etc.
To explain in more detail, when the control unit 44 receives a signal indicating that the light beam path R of the obstacle detection sensor 30 is blocked by an obstacle during the normal closing operation of the opening/closing body 10, the control unit 44 outputs this signal. The opening/closing machine 43 is controlled accordingly. It goes without saying that the control unit 44 also performs control other than when an obstacle is detected (for example, control according to an operation signal, etc.).

The guide rail 20 is configured to surround the widthwise end of the opening/closing body 10 in a concave shape.
As shown in FIGS. 2 to 5, the guide rail 20 is attached to a fixed column 21 fixed to the frame M, which is an immovable part on the indoor side, in the opening and closing direction of the opening/closing body, and is removably attached to the fixed column 21. It includes a connected guide rail main body 22 and an inner guide rail 23 fixed within the guide rail main body 22, and an obstacle detection sensor 30 is fixed on the back side of the bottom wall portion 22d of the guide rail main body 22 by a bracket 38. I'm wearing it.

According to the illustrated example, the fixed column 21 includes a fixed part 21a that is directly fixed to the frame M, and a fixed part 21b that is fitted and connected to the fixed part 21a and to which the guide rail main body 22 is fixed. It is integrally composed of.
The fixed portion 21a and the attached portion 21b may be formed in advance as an integral member.

As shown in FIGS. 2 and 3, the fixed support 21 is formed to have a concave cross section with an opening on the opening/closing body 10 side (right side in the figure), and extends up and down along the frame M on which the opening/closing device 1 is installed. It will be extended in the direction. A storage space S1 is secured inside the fixed support 21 (specifically, the attached portion 21b) to store the obstacle detection sensor 30, its electric wiring 39a (or 39b), and the like.
On the opening side (right side in FIG. 2) of the fixed support 21, fastened parts 21b1, 21b1 for fastening and fixing the guide rail main body 22 are provided in the shape of a flange that protrudes to both sides in the thickness direction of the opening/closing body. .

The guide rail main body 22 includes a guide space S2 that is an opening/closing path for the end of the opening/closing body 10 in a continuous manner in the vertical direction, and has a cross section that surrounds the end of the opening/closing body 10 by inserting it into the opening 22a. It is formed in a concave shape. Note that the reference numeral 22b provided in the opening 22a is, for example, an airtight material made of an elastic material, a cushioning material made of a material with good slipperiness, or the like.
The bottom wall portion 22d of the guide rail main body 22 functions as a partition wall that partitions the storage space S1 and the guide space S2 in the vertical direction.

This guide rail main body 22 is provided with attachment/detachment parts 22c, 22c protruding from both sides in the thickness direction of the opening/closing body, respectively, on the side of the opening 22a. Each attaching/detachable part 22c is superimposed on the attached part 21b of the fixed column 21, and is detachably fixed by a fixing device p such as a screw or bolt.

The bottom wall portion 22d (partition wall) in the guide rail main body 22 has a fitted portion having a substantially C-shaped cross section so as to be located on an extension line of the opening/closing body 10 extending in the width direction of the opening/closing body. 22d1, and a light passage hole 22e for securing the light beam path R of the obstacle detection sensor 30.
The inner guide rail 23 is fitted into the fitted portion 22d1 and fixed immovably.

The inner guide rail 23 has an opening between the opposing inward edges 23a, 23a, and has a substantially concave cross section facing the opening/closing body 10 side (the right side in FIG. 2), and is formed in an elongated shape that continues in the vertical direction. be done.
The inner guide rail 23 securely fits the slip-off prevention member 14 of the opening/closing body 10 inside the inward edges 23a, 23a, and guides the slip-off preventing member 14 in the opening/closing direction of the opening/closing body.
On the bottom side of the inner guide rail 23, an inner wall surface 23b opposing the end surface in the width direction of the opening/closing body 10 (specifically, the end surface of the slip-off prevention member 14) has a light passage hole for securing the light path R. 23b1 is provided. This light passage hole 23b1 communicates with the light passage hole 22e of the guide rail body 22.

As shown in FIG. 3, the guide rail main body 22 having the above configuration is detachably connected to the fixed support 21, and when removed from the fixed support 21, the storage space S1 is moved toward the outside than the opening/closing body 10. open to the space of

The obstacle detection sensor 30 constitutes a multi-optical axis sensor that forms a plurality of light beam paths R at intervals in the vertical direction between the two guide rails 20, 20, and among the plurality of light beam paths R, A signal caused by the interruption of at least a portion of the light beam path R is transmitted to the control unit 44 via the electric wiring 39b.

This obstacle detection sensor 30 has a first unit 30a that extends vertically within the guide rail 20 on one side (the right side in FIG. 1), and a first unit 30a that extends vertically within the guide rail 20 on the other side (the left side in FIG. 1). and a second unit 30b extending in the direction.
The first unit 30a and the second unit 30b are each separated by a predetermined distance H in the opening direction from the contact target part G of the opening/closing body 10 (for example, the lower frame, floor surface, ground, etc.) when fully closed. It is fixed to the back side of the bottom wall 22d (partition wall) of the inner guide rail 23 and the guide rail main body 22 by the bracket 38, and is located in the storage space S1.
The predetermined dimension H is set within a range of approximately 150 to 1500 mm, and more preferably within a range of approximately 150 to 500 mm.
In addition, as another example other than the illustrated example, it is also possible to provide the first unit 30a and the second unit 30b over the entire height of the opening opened and closed by the opening and closing body 10.
These two units 30a and 30b form a large number of light beam paths R spaced at substantially constant intervals in the vertical direction.

The first unit 30a has a large number of projectors (not shown) spaced at approximately constant intervals in the longitudinal direction within a cubic case that is elongated in the opening/closing direction of the opening/closing body. These projectors constitute a photoelectric sensor, and receive power from the electric wiring 39a to emit light (for example, infrared rays) as an obstacle sensing medium.
The first unit 30a and its electric wiring 39a are connected to the guide rail 20 on the far side (on the right according to FIG. 1) with respect to the control section 44 located on one side in the width direction of the opening/closing body (on the left according to FIG. 1). It is provided in the storage space S1 inside. The electrical wiring 39a is guided upward along the inner surface of the guide rail 20 and is electrically connected to the control unit 44 within the storage case 41.

The second unit 30b functions as a transmitting unit that transmits a signal when an obstacle is detected to the electrical wiring 39b.
This second unit 30b includes a large number of light receivers (not shown) placed at approximately constant intervals in the longitudinal direction within a cubic case that is elongated in the opening/closing direction of the opening/closing body, and a sensing sensor for these light receivers. and a control circuit (not shown) that processes the signal.
Each of the light receivers receives the light beam emitted from the opposing light projector of the first unit 30a and forms a light beam path R as an obstacle sensing medium.
The second unit 30b processes the sensing signal from the light receiver using the control circuit, and transmits a signal as a result of the processing to the electric wiring 39b.

The second unit 30b and its electric wiring 39b are stored in the guide rail 20 located on one side in correspondence with the control section 44 located on one side in the width direction of the opening/closing body (left side according to FIG. 1). It is provided in the space S1. The electrical wiring 39b is guided upward along the inner surface of the guide rail 20 and is electrically connected to the control unit 44 within the storage case 41.
According to the illustrated example, this connection is made by a connecting portion 37 provided in the middle of the electrical wiring inside the storage case 41.
The connecting portion 37 may be a connector having a detachable male member and a female member, a detachable connecting terminal, or the like.

Further, as shown in FIGS. 2 to 4, the bracket 38 is formed in the shape of a rectangular parallelepiped block, and has flanges 38a on its upper and lower ends, respectively. Each collar portion 38a is fixed to the back surface of the bottom wall portion 22d of the guide rail main body 22 by a fastening device p (for example, a screw or bolt) inserted therethrough.
Then, the first unit 30a or the second unit 30b is fixedly fixed to the side surface of the bracket 38 using a fastener p (for example, a screw, a bolt, etc.).
According to this fastening structure, the first unit 30a and the second unit 30b can be accurately positioned. That is, for example, when the first unit 30a and the second unit 30b are fixed to the guide rail main body 22 using general L-shaped fittings, etc., the optical axis may be tilted due to deformation of the L-shaped fittings, etc. This can easily occur, but this can be prevented.

To explain in detail the relationship between the many light beam paths R and the guide rail 20, the light passing holes 23b1 and 22e on the bottom side of the guide rail 20 (in detail, the inner guide rail 23 and the guide rail main body 22) are spaced apart in the vertical direction. A plurality of them are provided (see Fig. 5).
Each of the light passing holes 23b1 and 22e is formed in the shape of a long hole extending in the vertical direction so as to allow a plurality of (four according to the example in FIG. 5) light ray paths R, which are some of the many light ray paths R, to pass through. has been done.

Each of the light passing holes 23b1 and 22e of the first unit 30a and the second unit 30b has a width W that is slightly larger than the diameter of the light projection surface 30a1 of the light projector of the obstacle detection sensor 30 (see FIG. 5).
That is, the projector emits light in a radial pattern that spreads at a predetermined angle. The width W of the light passage hole 23b1 is set so as to appropriately maintain the radial spread.
Therefore, the light receiver facing the light projector receives the light emitted from the light projector even if its position is slightly shifted in the thickness direction of the opening/closing body (width W direction in the drawing) due to manufacturing error or the like. It turns out.

Further, the width W of the light passage holes 23b1 and 22e is set smaller than the thickness dimension X of the opening/closing body 10 (see FIG. 2). In addition, according to an example of this embodiment, the dimension X is the dimension in the thickness direction of the widthwise end surface (specifically, the closing members 15, 16, 17) of the opening/closing body 10.
According to this configuration, the two light beam paths R can be satisfactorily blocked by the width direction end portions of the opening/closing body 10 during blanking control. Moreover, it is possible to effectively prevent foreign matter such as dust from adhering to the light passing holes 23b1 and 22e.
It also prevents the end portion of the opening/closing body 10 from interfering with the inner edge of the light passage hole 23b1, preventing the opening/closing body 10 from sliding or getting caught, and preventing the light emitting surface 30a1 or the light receiving surface 30b1 of the obstacle detection sensor 30 from interfering with the inner edge of the light passage hole 23b1. Damage etc. can be prevented.

Note that the light passing hole 22e on the guide rail main body 22 side may have the same shape as the light passing hole 23b1 on the inner guide rail 23 side, but it may be made wider than the light passing hole 23b1 so as to include the light passing hole 23b1. You can make it longer.
According to the opening/closing device 1 having the above configuration, the first unit 30a is provided with a light emitter and the second unit 30b is provided with a light receiver, but as another example, the second unit 30b is provided with a light emitter and a light receiver, The other unit may be provided with a reflector so that the light emitted from the projector is reflected by the reflector and captured by the light receiver.

Next, the characteristic functions and effects of the opening/closing device 1 having the above configuration will be explained in detail.
As shown in FIG. 1, during the closing operation of the opening/closing body 10, a large number of light beam paths R are formed at intervals in the vertical direction by the obstacle detection sensor 30 below the opening/closing body 10.
When any of these light beam paths R is blocked by an obstacle below the opening/closing body 10, an obstacle sensing signal is output from the control circuit of the second unit 30b. Then, the control unit 44 appropriately controls the opening/closing machine 43, such as stopping or reversing, according to the input of the obstacle sensing signal.

In particular, according to the opening/closing device 1 according to the present invention, the electrical wiring 39b for signal transmission located on one side in the width direction of the opening/closing body can be made relatively short. It is not easily affected and can obtain good obstacle sensing performance.
That is, contrary to the illustration, if the first unit 30a is on the receiver side, the signal output from the first unit 30a is transmitted to the control section 44 through the guide rail 20 on the other side (on the right side in the illustration). In this case, the electrical wiring 39a becomes significantly long, which may reduce the sensing accuracy due to increased electrical resistance and the influence of noise. However, in this embodiment, such problems can be avoided. Hard to occur.

Further, according to the opening/closing device 1, the second unit 30b (or first unit 30a), electric wiring 39b (or 39a), etc. are stored in the storage space partitioned off from the guide space S2 by the bottom wall 22d. Since these members are included in S1, it is possible to prevent these members from interfering with and damaging the end portions of the opening/closing body 10.

Furthermore, as shown in FIG. 3, by removing the guide rail main body 22 from the fixed column 21, the storage space S1 can be opened to the outside, and the work of removing the second unit 30b from the guide rail main body 22 during maintenance, etc. can be done efficiently.

Next, other embodiments according to the present invention will be described.
In addition, since the embodiment shown below is one in which a part of the configuration of the opening/closing device 1 is changed, the changed part will mainly be described in detail, and redundant detailed explanation etc. will be omitted as appropriate.

As another embodiment of the present invention, the guide rail 20 in the opening/closing device 1 can be replaced with a guide rail 20' shown in FIG. 7.
In the guide rail 20', the attached portion 21b is replaced with an attached portion 21b', and the guide rail main body 22 is replaced with a guide rail main body 22'.

The fastened part 21b' does not have a screw hole for fastening the fastener p from the fastened part 21b, and instead has a fastened part 22h in the shape of an inward projecting piece. It is.

The guide rail main body 22' also has a detachable part 22c that is detachably attached to the fixed support 21 with a fastener p (for example, a screw or bolt) on the indoor side of the opening and closing body 10, and It also has a hook part 22g that is hooked to the fixed column 21 on the outdoor side without using the fastener p.
The end of the latching portion 22g is bent into a crank shape in cross section so that when the detachable portion 22c is removed from the fixed column 21' and the guide rail main body 22 is tilted, the hooked portion 22g is detached from the latched portion 22h of the fixed column 21'. (See Figure 7).

According to this guide rail 20', the fasteners p (screws, bolts, etc.) are not exposed on the outdoor side, so crime prevention can be improved. Furthermore, by removing the indoor fastener p and slightly tilting the guide rail main body 22', the hooking portion 22g can be easily removed from the hooked portion 22h, resulting in good maintenance.

Note that the guide rail 20' can be replaced with a guide rail 20'' shown in FIG. 12. The guide rail 20'' is fixed to the inner wall surface of the garage of the frame M, for example. That is, in this embodiment, the opening/closing device is provided inside the opening of the garage.
In the guide rail 20'', the fixed column 21' is replaced with a fixed column 21'', and the guide rail main body 22' is replaced with a guide rail main body 22'' in the guide rail 20'.

The fixed column 21'' is integrally constituted of an outdoor fixed part 21a'' having a fixed part 22h and an indoor fixed part 21b' having a fixed part 21b1 by the fastening tool p. Ru.
The fixed part 21a'' and the fixed part 21b' that constitute this fixed column 21'' are integrated by a fixing tool p according to the illustrated example, but they may be formed in a manner in which they are integrally processed in advance or by fitting, etc. It is also possible to adopt an integrated mode.

Further, the guide rail main body 22'' is provided with a hooking part 22g on the outdoor side and a detachable part 22c using a fastener p on the indoor side.

Therefore, according to the embodiment shown in FIG. 12, on the indoor side of the opening/closing body 10 (not shown), the detachable part 22c is detachably attached to the attachment point 21b1 of the fixed column 21'' by the attachment device p, On the outdoor side of the opening/closing body 10, the hooking portion 22g is hooked to the hooked portion 22h of the fixed support 21''.
Therefore, similar to the guide rail 20' (see Fig. 7) described above, the fastening device p is not exposed to the outside, so crime prevention can be improved, and the guide rail main body 22'' can be easily attached and detached. , maintainability is also good.

In another embodiment of the present invention, in the opening/closing device 1, the guide rail 20 is replaced with a guide rail 60, and the obstacle detection sensor 30 is replaced with a single optical axis obstacle detection sensor 70. It is also possible (see FIGS. 8 and 9).

As shown in FIG. 9, the guide rail 60 includes a fixed support 61 fixed to the frame M, a guide rail main body 62 that guides the widthwise end of the opening/closing body 10 in the vertical direction, and a floodlight of the obstacle detection sensor 70. Alternatively, they are integrated with a sensor support column 63 that supports a light receiver and are arranged in the thickness direction of the opening and closing body, so that a single light beam path R is formed on the front side of the sensor support column 63.

Inside the guide rail main body 62, an inner guide rail 23' that engages with the slip-off prevention member 14 is provided, and a guide space S2 that guides the widthwise end of the opening/closing body 10 in the vertical direction is formed.

In addition, as shown in FIG. 9, the sensor support column 63 is constructed by overlapping two members each having a concave cross section and fastening them with fasteners p (for example, screws, bolts, etc.) on both sides. It is formed into a hollow shape having a storage space S1.
The electrical wiring 39b (or 39a) of the obstacle detection sensor 70 is housed in the storage space S1 in the vertical direction. A midway portion of the electric wiring 39b (or 39a) is detachably connected by a connecting portion (for example, a connector, a connecting terminal, etc.) not shown. In addition, as another example, it is also possible to omit the connection portion.

The obstacle detection sensor 70 is composed of a single light emitter and a single light receiver 71 facing the light emitter. At this time, a signal is emitted from the light receiver 71 (transmission unit), and this signal is transmitted through the electric wiring 39b and input to the control section 44.

The light receiver 71 and its electric wiring 39b are provided on the guide rail 60 on one side in correspondence with the control section 44 located on one side in the width direction of the opening/closing body, similarly to the opening/closing device 1 described above.

Therefore, according to the embodiment shown in FIGS. 8 and 9, similarly to the above-mentioned switchgear 1, the electrical wiring 39b on the light receiver 71 (transmission unit) side is made relatively short to obtain good obstacle sensing performance. be able to.
Furthermore, since the electrical wiring 39b (or 39a) is provided in the storage space S1 partitioned off from the guide space S2, the electrical wiring 39b (or 39a) does not interfere with the opening/closing body 10 or the removal prevention member 14. can be prevented. Moreover, the interior of the sensor support column 63 can be opened by removing the fasteners p on both sides of the sensor support column 63, and maintainability is also good.

According to the opening/closing device 1 having the above configuration, the light passing holes 23b1 and 22e are provided in the inner wall surface 23b of the inner guide rail 23 and the bottom wall portion 22d of the guide rail body 22, respectively (see FIG. 2). Other examples include a configuration in which the falling-off prevention member 14 and the inner guide rail 23 are omitted from the illustrated example, but the light passing holes 23b1 and 22e are provided only in the bottom wall portion 22d of the guide rail body 22; It is also possible to provide an embodiment in which a separate plate having light passage holes is provided on the bottom side.

Further, according to a preferable example of the above embodiment, the light passage hole 23b1 (22e) is an elongated hole through which a part of the light beam path R passes, but other examples of the light passage hole are as follows. It is also possible to form it to be elongated in the vertical direction so as to include all the ray paths R.
Furthermore, as another example of the light passage hole, it is also possible to form it in the shape of a notch or a slit. For example, the guide rail 20 is constructed from two members divided in the thickness direction of the opening/closing body, and cutouts are provided in one and the other member, and these two cutouts are brought together to form the light passing hole. may be configured.

Further, according to a preferable example of the embodiment described above, the light passage hole 23b1 (22e) is formed so as to pass a plurality of light ray paths R that are a part of a large number of light ray paths R, but there are other examples. As shown in FIG. 10(a), the light passage hole 23b1 is formed in a long shape extending in the opening/closing direction of the opening/closing body so as to allow a plurality of light ray paths R, which are all of the many light ray paths R, to pass through. It is also possible to do so.
In this case, more preferably, reinforcing members 23b2 may be provided at appropriate intervals in the longitudinal direction of the light passing hole 23b1, as shown in FIG. 10(b). This reinforcing material 23b2 is fixed to the guide rail 20 between the vertically adjacent light receiving surfaces 30b1 (or the light projecting surface 30a1) so as to straddle both long edges of the light passage hole 23b1. According to this configuration, the strength of the guide rail 20 (in detail, the inner guide rail 23, the guide rail main body 22, etc.) is reduced by the elongated light passage hole 23b1 (22e), which can be reduced by the reinforcing material 23b2. I can do it.

Further, according to the above embodiment, the light receiving surface 30b1 (or the light projecting surface 30a1) is exposed to the outside air on the side of the opening and closing body 10 in the width direction of the opening and closing body, but as another example, the light passing hole 23b1 may be covered with a translucent member (for example, a plate, etc.) or a transparent member. According to this configuration, the light receiving surface 30b1 (or the light projecting surface 30a1) can be prevented from becoming dirty or being damaged by contact with an object or the like.

Further, in the above embodiment, as a particularly preferable aspect, the first and second units 30a and 30b constituting the obstacle detection sensor 30 are provided on the guide rail or the sensor support column integrated with the guide rail. As another example, it is also possible to provide the first and second units 30a, 30b in a separate part from the opening/closing device 1.

Also. In the above embodiment, the connection part 37 for connecting the electric wiring 39a, 39b to the control part 44 is provided inside the storage case 41, but in another preferred embodiment, this connection part 37 is provided inside the guide rail 20. It may be provided in the storage space S1 of.
That is, in this aspect, in the opening/closing device 1 having the above configuration, each electric wiring 39a, A connecting portion 37 (for example, a connector, a connecting terminal, etc.) is provided to detachably connect an intermediate portion of 39b (see FIG. 11). According to the illustrated example, this connecting portion 37 is provided near the second unit 30b or the first unit 30a.
According to this configuration, when the guide rail main body 22 is removed as shown in FIG. 3, the connecting portion 37 can be exposed to the outside, and the maintainability of each unit 30a, 30b can be further improved. .
Note that the connection portion 37 may be provided for both the electrical wirings 39a and 39b, but it is also possible to provide it only for one of the electrical wirings 39a (or 39b), for example.

In addition, as a modification of the above embodiment, a removable lid is provided on the guide rail main body 22 or the fixed column 21, and the storage space S1 can be removed by removing the lid without removing the guide rail main body 22. It is also possible to have a configuration in which the electrical wiring 39a (or 39b), the connecting portion 37, etc. are exposed by opening.

Further, in the above embodiment, the light ray path R is formed between the left and right guide rails 20, 20, but the light ray path R is directed in the width direction of the opening/closing body due to the arrangement of the obstacle detection sensor 30, etc. Other examples include a mode in which the ray path R is directed toward the width direction of the opening/closing body on the front side (or back side) of the left and right guide rails 20, 20, or a mode in which the ray path R is directed toward the width direction of the opening/closing body on the front side (or back side) of the left and right guide rails 20, 20, 20 is slightly inclined from the front side of the other guide rail 20 to the back side of the other guide rail 20 so that it goes in the width direction of the opening and closing body, and the light beam path R is set in the width direction of the opening and closing body between the members close to the left and right guide rails 20, 20. It is possible to set it as an aspect provided so that it may go toward.

The present invention is not limited to the embodiments described above, and can be modified as appropriate without changing the gist of the present invention.

1: Opening/closing device 10: Opening/closing body 20, 20', 60: Guide rail 21, 21', 61: Fixed support 22, 22', 62: Guide rail body 22c: Detachable part 22d: Bottom wall part (partition wall)
22e: Light passage hole 22g: Hanging part 30: Obstacle detection sensor 30a: First unit 30b: Second unit (transmission unit)
37: Connection section 39a, 39b: Electrical wiring 40: Storage section 44: Control section 71: Light receiver (transmission unit)
R: Ray path S1: Storage space S2: Guide space

Claims (4)

An opening/closing body that operates to close by partitioning a space, two guide rails that respectively surround both ends of the opening/closing body in the width direction and guide it in the opening/closing direction, and an opening/closing body that prevents obstacles on the side of the opening/closing body in the closing direction. an obstacle detection sensor that senses contact; a storage section that stores the opening/closing body on its opening direction side; and a control section that controls opening/closing operations of the opening/closing body in accordance with a signal from the obstacle detection sensor within the storage section. Equipped with
The obstacle detection sensor is configured to form a light beam path extending in the width direction of the opening/closing body, and to transmit a signal caused by the interruption of this light beam path to the control unit via electric wiring,
The control section is provided on one side in the width direction of the opening/closing body in the storage section, and at least a part of the electric wiring is provided along the guide rail located on the one side ,
The guide rail has a guide space that is an opening/closing path of the opening/closing body, and a storage space that is a separate space partitioned off from the guide space and that stores the obstacle detection sensor,
An opening/closing device characterized in that a partition wall is provided to partition the guide space and the storage space, and the partition wall is provided with a light passage hole through which the light beam path passes . An opening/closing body that operates to close by partitioning a space, two guide rails that respectively surround both ends of the opening/closing body in the width direction and guide it in the opening/closing direction, and an opening/closing body that prevents obstacles on the side of the opening/closing body in the closing direction. an obstacle detection sensor that senses contact; a storage section that stores the opening/closing body on its opening direction side; and a control section that controls opening/closing operations of the opening/closing body in accordance with a signal from the obstacle detection sensor within the storage section. Equipped with
The obstacle detection sensor is configured to form a light beam path extending in the width direction of the opening/closing body, and to transmit a signal caused by the interruption of this light beam path to the control unit via electric wiring,
The control section is provided on one side in the width direction of the opening/closing body in the storage section, and at least a part of the electric wiring is provided along the guide rail located on the one side,
The guide rail has a guide space that is an opening/closing path of the opening/closing body, and a storage space that is a separate space partitioned off from the guide space and that stores the obstacle detection sensor,
The guide rail includes a guide rail main body having the guide space, and a fixed support column connected to the guide rail main body and fixed to an immovable part,
The storage space portion is provided in the fixed column,
The guide rail main body is detachably connected to the fixed support, and opens the storage space when removed from the fixed support, and the guide rail main body is connected to the fixed support on the indoor side of the opening/closing body. An opening/closing device comprising: a detachable part that is detachably attached to the opening/closing body; and a hook part that is hooked to the fixed column on the outdoor side of the opening/closing body. The guide rail includes a guide rail main body having the guide space, and a fixed support column connected to the guide rail main body and fixed to an immovable part,
The opening/closing device according to claim 1 , wherein the storage space is provided in the fixed column. 3. The guide rail main body has a substantially concave cross section with the guide space inside, and a bottom wall thereof partitions the guide space and the storage space. 3. The opening/closing device according to 3 .

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