JP4550482B2 - Switchgear - Google Patents

Description

  The present invention provides a hollow support for an opening / closing body such as a shutter device including an overhead door, a door, a sliding door including a shutter, a sash window, a gate, a gate, a sliding wall device, a roll screen device, a blind device, and an awning device. More particularly, the present invention relates to an opening / closing device suitable as a shutter device.

  Conventionally, this type of opening and closing device includes an opening and closing body (5) that closes and abuts against a contact target site such as the ground, floor, or lower frame, as in the invention described in Patent Document 1. And a hollow support member (guide rail 4) that supports the end of the opening / closing body (5) in the width direction and guides it in the opening / closing direction, and is located within the support member (guide rail 4), There is one provided with an obstacle sensing unit (light emitting unit 32 and light receiving unit 42) that protrudes downward from the lower end of the opening / closing body (5) and can slide up and down.

By the way, according to the prior art, for example, when an obstacle sensing unit fails or when a foreign object (including dust, dust, leaves, pests, snow, water, etc.) enters the support member, the obstacle sensing unit If the sensor's sensing accuracy or the closing performance of the opening / closing body is reduced, maintenance inside the support member is required, such as replacement or repair of the obstacle detection part inside the support member, or removal of foreign matter inside the support member. .
In this case, since the support member is provided with an opening for inserting the opening / closing body, maintenance inside the support member may be performed from this opening. From the standpoint of obstructing, the width is set slightly wider than the thickness of the opening and closing body, and the width is slightly narrow for maintenance.
JP-A-11-182161

  This invention is made | formed in view of the said conventional situation, The process made into the subject is providing the opening / closing apparatus which can improve the maintainability in the supporting member which supports an opening / closing body.

In order to solve the above problems, the present invention provides an opening / closing apparatus in which the end in the width direction of the opening / closing body is supported by a hollow support member, and the support member is mounted on the housing.
A maintenance opening that communicates the outer periphery of the support member inward and outward; and a lid that closes the maintenance opening so as to be openable and closable; and the support member includes an end in the width direction of the opening and closing body. An opening / closing body insertion opening to be inserted is provided, and the maintenance opening is arranged to be continuous with the opening / closing body insertion opening and the opening / closing body thickness direction when opened. In the support member, a part of the obstacle sensing unit attached to the end in the width direction of the opening / closing body is disposed in the space portion on the side of the casing toward the opening / closing body thickness direction from the opening / closing body. The portion of the support member where the obstacle sensing unit is disposed includes a space portion on the opposite side of the casing side from the opening / closing body in the thickness direction of the opening / closing body in the support member, Maintenance opening and opening of the opening / closing body insertion opening But it characterized by having a width capable withdrawn the obstacle sensing part to the outside from the support member.

The opening / closing apparatus according to the embodiment of the present invention may be an apparatus configured to partition a space by an opening / closing body, and the opening / closing body includes an opening / closing body that is used so that the opening / closing body only performs a closing operation. Includes a mode used to perform both the opening operation and the closing operation.

  Moreover, as a specific example of the opening / closing body, an aspect in which a plurality of slats or pipes are continuously provided in the opening / closing direction, or an aspect in which a panel, a sheet-like object, or a net-like object is provided in the opening / closing direction as one or more Or the aspect etc. which combine a slat, a panel, a pipe, a sheet-like thing, a net-like thing, etc. suitably are mentioned. The operating direction of the opening / closing body can be a vertical direction, a horizontal direction, an oblique direction, or the like.

  The support member may be a hollow member that supports the widthwise end of the closed opening / closing body. The support member surrounds the widthwise end of the opening / closing body. A so-called guide rail that supports the opening / closing body so as to guide it in the opening / closing direction, and the opening / closing body is supported along the widthwise end of the opening / closing body in the closed state. Includes a member that is housed by turning or sliding so as to be bent.

  Further, the maintenance opening means the inside of the support member, for example, repair or replacement of parts in the support member and parts inside and outside the support member, inspection and cleaning of the inside of the support member, etc. Any opening may be used for maintenance.

  In addition, the lid portion is configured to open and close the opening for maintenance by being attached to and detached from the support member, to open and close the opening by rotating in the form of a hinged door, and to open the opening by sliding. The mode etc. which open and close a part are included.

Moreover, the opening / closing apparatus according to the embodiment of the present invention is characterized in that the support member has the maintenance opening and the lid disposed on a surface that engages with the opening / closing body.
Here, the “surface that engages with the opening / closing body” is a surface on the side of the support member that supports the end side in the width direction of the opening / closing body in the closed state. A surface that fits loosely with the opening / closing body, a surface that fits with the opening / closing body, a surface into which the opening / closing body is inserted, and the like are included.

In the opening / closing apparatus according to an embodiment of the present invention, the support member is provided with an opening / closing body insertion opening for inserting an end in the width direction of the opening / closing body, and the maintenance opening is opened. The opening / closing body insertion opening and the opening / closing body thickness direction are arranged to be continuous with each other.

Further, in the opening / closing apparatus according to the embodiment of the present invention, the maintenance opening and the lid are arranged at a portion excluding a predetermined portion on one end side or both end sides in the opening / closing body opening / closing direction of the support member. It is characterized by.

Moreover, the opening / closing apparatus according to the embodiment of the present invention is characterized in that the maintenance opening is provided continuously over substantially the entire length of the support member in the opening / closing body opening / closing direction.

Further, the opening / closing apparatus according to the embodiment of the present invention is characterized in that a plurality of the maintenance openings are arranged at predetermined intervals in the opening / closing body opening / closing direction of the support member.

In the switchgear according to the embodiment of the present invention, the support member includes an obstacle detection unit support member that supports the obstacle detection unit, and the obstacle detection unit support member includes the support member. It is the feature provided so that attachment or detachment is possible.

Here, the obstacle sensing unit senses an obstacle present on the closing direction side of the opening / closing body, and any part or all of the obstacle sensing unit may be contained in the support member.
The obstacle sensing unit includes a non-contact type obstacle sensing unit that emits an obstacle sensing medium and senses an obstacle that enters the obstacle sensing medium. It includes a contact-type obstacle sensing unit that is provided with a projecting movable member and senses an obstacle that contacts the movable member.

  The obstacle sensing unit support member may be configured to guide an obstacle sensing unit movable in the opening / closing body opening / closing direction integrally with the opening / closing body in the moving direction, and the opening / closing body. A structure for fixing a separate obstacle sensing unit to the support member is included.

In the opening / closing apparatus according to an embodiment of the present invention, the obstacle sensing unit support member is configured to open and close the opening / closing body so as to move the obstacle sensing unit integrally with the opening / closing body in the opening / closing body opening / closing direction. And is formed of a plurality of parts so as to be splittable in the opening / closing body opening / closing direction.

In the present specification, the “opening / closing body thickness direction” means the thickness direction of the opening / closing body in the closed state.
In the present specification, the “opening / closing body width direction” means a direction that is substantially orthogonal to the opening / closing direction of the opening / closing body and not the thickness direction of the opening / closing body.
Further, in this specification, the “opening / closing body opening / closing direction” means a direction in which the opening / closing body moves to partition or open the space.

Since the switchgear according to the embodiment of the present invention is configured as described above, the following effects can be obtained.
First, when the maintenance opening is opened by moving the lid in the opening direction, the inside and outside of the support member are in communication with each other by the opened maintenance opening.
Therefore, for example, it is possible to easily perform maintenance in the support member, such as repairing or replacing parts in the support member, or cleaning the inside of the support member.

Furthermore, secondly, even when the support member is embedded on the housing side depending on the situation at the site, the surface that engages with the opening / closing body is not embedded on the housing side, so it is disposed on the engaging surface. Maintenance in the support member can be performed from the maintenance opening.

Third, when the lid is moved in the opening direction and the maintenance opening is opened, the maintenance opening and the opening / closing body insertion opening are continuously large in the opening / closing body thickness direction. An opening area is secured. Therefore, the maintenance in the support member can be performed more easily.

Furthermore, fourthly , for example, when one end side of the support member is embedded in a floor surface, the ground, a frame member, or when the other end side of the support member is inserted into the opening / closing body housing, Even when the predetermined part on one end side or both end sides is not exposed, the maintenance opening can be opened by moving the lid in the opening direction.

Further, the fifth, the opening area at the time when the maintenance opening is opened, over the opening and closing member opening and closing direction can be secured relatively large, the maintenance for the support member, be improved it can.

Furthermore, sixth, it is possible to prevent the strength of the support member from being lowered by setting the opening area of the maintenance opening to the minimum necessary area.

Further, in the seventh, when equal or repair to replace the obstacle sensing unit, can be removed and a supporting member for an obstacle sensing unit and the obstacle detecting unit, the workability is excellent.

Eighthly, the obstacle sensing unit support member extending in the opening / closing direction of the opening / closing body can be removed by removing only necessary portions, and the maintainability of the obstacle sensing unit can be further improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The present embodiment is arranged in an opening or in a building / structure such as a house, building, warehouse, factory, underground shopping center, tunnel, vehicle loading platform, etc., and opens and closes the opening or opens the space inside the housing. An example will be described in which the present invention is applied to a shutter device that is a partition device that opens and closes and that is slid in the opening and closing direction while being supported by a support member.

  The opening / closing device 1 includes an opening / closing body 10 that can be opened and closed by sliding a part in the closing direction, and both support members 20, 20 that support both ends of the opening / closing body 10 in the width direction and guide the opening / closing direction. An obstacle sensing unit 30 for non-contact sensing of an obstacle closer to the closing direction than the opening / closing body 10 is provided, and the opening / closing body 10 is drawn out and stored by a storage mechanism (not shown) on the opening direction side. (See FIG. 1).

  The opening / closing body 10 includes a plurality of so-called slats formed by bending a horizontally-long substantially rectangular metal plate, and these slats rotate between adjacent slats in the opening / closing body opening / closing direction (vertical direction in the illustrated example). As a result of the connection, the opening / closing body main body 11 that can be stored by a storage mechanism (not shown) on the opening / closing body opening direction side is configured, and the opening / closing body main body 11 is seated across the opening / closing body width direction at the closing direction end. The plate member 12 is connected.

The seat plate member 12 is a substantially hollow long member extending in the opening / closing body width direction, and an electric wiring or the like of the discharge portion 31 described later is inserted through the opening plate in the opening / closing body width direction.
Then, on each of the front and back surfaces of the seat plate member 12, an engaged portion 12g (see FIG. 5) protruding to both sides in the opening / closing body thickness direction is formed on the end side in the opening / closing body width direction. ing. The engaged portion 12g supports an obstacle sensing unit 30 (more specifically, a discharge-side non-contact sensing unit 30a or a capture-side non-contact sensing unit 30b) described later.

  Further, a notch 10 a is formed from the seat plate member 12 to the opening / closing body main body 11 at each end in the width direction of the opening / closing body 10 having the above-described configuration. The notch 10a secures an electrical wiring space for the obstacle sensing unit 30 and smoothes the sliding of the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b described later.

The obstacle sensing unit 30 includes a discharge-side non-contact sensing unit 30a disposed on one end side in the opening / closing body width direction (left end side in the illustrated example) and the other end side in the opening / closing body width direction (in the illustrated example). And a capture-side non-contact sensing unit 30b disposed on the right end side).
The obstacle sensing unit 30 is supplied with electric power from a control unit (not shown), and captures the obstacle sensing medium released from the emission side non-contact sensing unit 30a side on the acquisition side non-contact sensing unit 30b side. An obstacle sensing medium path s (see FIG. 1) is formed between the emission-side non-contact sensing unit 30a and the capture-side non-contact sensing unit 30b.

  The discharge-side non-contact sensing unit 30a includes a unit main body 34 that engages with the obstacle detection unit support member 21 in the support member 20, and a discharge unit 31 that discharges the obstacle detection medium in the substantially opening / closing body width direction. Then, the opening / closing body 10 is mounted so as to protrude from one end side in the width direction to the opening / closing body closing direction side and to slide in the opening / closing body opening / closing direction with respect to the opening / closing body 10 (see FIG. 5).

  Similarly, the capture-side non-contact sensing unit 30b includes a unit main body 34 that engages with the obstacle sensing unit support member 21 in the guide rail 20, and an obstacle that is released from the discharge unit 31 in the substantially opening / closing body width direction. And a capturing part 32 that captures the sensing medium, and is mounted so as to project from the other end side in the width direction of the opening / closing body 10 toward the opening / closing body closing direction and slide relative to the opening / closing body 10 in the opening / closing body opening / closing direction. .

According to the illustrated example, each unit body 34 has a substantially hollow rectangular parallelepiped frame shape that is long in the vertical direction, and the upper end portion and one side end portion thereof are opened so that the opening / closing body 10 is fitted in a loose fit. ing.
On the outer surface of the unit main body 34, there are formed engaging portions 34d, 34d, engaging portions 34f, 34f, etc. that can be engaged with the obstacle sensing portion support member 21 in the support member 20 in an uneven shape. Yes.
Further, an engagement groove 34e is formed on the inner surface of the unit main body 34 so that the engagement portion 12g of the seat plate member 12 can be slid in the opening / closing body opening / closing direction and engaged in a loose fit. , 34e are formed.

  Further, the discharge unit 31 and the capture unit 32 may be configured to capture the obstacle sensing medium released from the release unit 31 in the opening / closing body width direction by the capture unit 32, and according to a preferred example of the present embodiment, A photoelectric sensor that emits infrared rays as an obstacle sensing medium from the emitting unit 31 and receives light by the capturing unit 32 is used. And these discharge | release part 31 and the capture | acquisition part 32 are being fixed to the opening-closing body closing direction side in the unit main body 34, respectively.

An electric wiring guide member 35 is fixed to the outside of the unit main body 34 of the capturing side non-contact sensing unit 30b.
The electrical wiring guide member 35 covers and protects the electrical wiring extending in the opening / closing body opening / closing direction in the support member 20 and is flexibly deformed so that the existing electric wiring can be freely opened / closed in the opening / closing body opening / closing direction. It is a well-known member that guides to the support member 20 together with the capture-side non-contact sensing unit 30b.

The opening / closing body 10 having the above-described configuration is supported by the support members 20 and 20 at both ends in the width direction.
As shown in FIG. 3, each support member 20 includes a main body part 22 for containing an obstacle detection part support member 21 and a heating means 40 described later, a receiving part 23 to which the main body part 22 is fixed, An opening / closing body insertion opening 20a for inserting an end of the opening / closing body 10 in the width direction is formed over substantially the entire length in the opening / closing body opening / closing direction. .
When the lid 24 is removed, the support member 20 opens the maintenance opening 20b, and connects the maintenance opening 20b and the opening / closing body insertion opening 20a to the opening / closing body thickness. Continue in the direction.

The main body portion 22 of the support member 20 is a member having a substantially U-shaped cross section extending in the opening / closing body opening / closing direction, and is used for inserting an opening / closing body continuous in the opening / closing body thickness direction on the surface on which the opening / closing body 10 is inserted. While having the opening part 20a and the opening part 20b for maintenance, it has the edge part 22a close | similar to the surface part (upper part according to FIG. 3) of the opening / closing body 10. FIG.
The edge portion 22a is a portion that is bent along the surface of the opening / closing body 10 in the direction of the bottom surface of the support member 20 (rightward according to FIG. 3), and suppresses fluttering of the opening / closing body 10 in the thickness direction. The buffer member 20c is covered.

  The width W (see FIG. 4) of the opening formed by the opening / closing body insertion opening 20a and the maintenance opening 20b in the opening / closing body thickness direction is a component inside the support member 20 (for example, support for the obstacle sensing section). The member 21, the discharge-side non-contact sensing unit 30 a, the capture-side non-contact sensing unit 30 b, the electrical wiring guide member 35, the heating means 40, etc.) are dimensioned so that they can be extracted to the outside.

  Further, the receiving portion 23 of the support member 20 is a member interposed for mounting the main body portion 22 on the housing side. According to the illustrated example, the receiving portion 23 is formed in a substantially rectangular cross section extending in the opening / closing direction of the opening / closing body. The body portion 22 and the lid portion 24 are fixed to the portion 23.

The lid 24 is a member having a substantially L-shaped cross section extending in the opening / closing body opening / closing direction, and is formed so as to form an opening / closing body insertion opening 20 a between the edge 22 a of the main body 22. It is fixed to the part 23 so as to be detachable.
And this cover part 24 is equipped with the edge part 24a bent at the one end side which faces the back part of the opening-closing body 10 toward the bottom part of the supporting member 20, and fits the buffer member 20c to this edge part 24a. .
The means for fixing the lid portion 24 to the receiving portion 23 may be any detachable means, and according to the illustrated example, it is screwed, but may be a fitting or other means.

Further, as shown in FIG. 2, the lid portion 24 is composed of a plurality of lid members 24a, 24b, and 24b, and the lid member 24a on the lowermost side has the support member 20 on the ground surface, floor surface, lower frame or the like. Since it is sometimes buried and cannot be removed, the length in the opening / closing body opening / closing direction is set shorter than the other lid member 24b in consideration of the amount of the buried portion.
In addition, although this cover part 24 is made into the preferable aspect which improved the conveyance property by comprising from several cover member 24a, 24b, 24b as mentioned above, it can also be comprised from an integral member.

  Further, on the bottom side of each support member 20 having the above-described configuration, an obstacle sensing unit support member 21 that guides the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b in the opening / closing body opening / closing direction is provided on the opening / closing body. It is provided continuously over the opening and closing direction.

The obstacle sensing unit support member 21 is formed by connecting a plurality of long members having a substantially L-shaped cross section so that the support member 21 can be divided in the opening / closing direction of the opening / closing body. The first engaging portion 21a for engaging with the portions 34f, 34f is provided, and the second engaging portion 21b for engaging with one engaging portion 34d of the unit body 34 is provided on the other piece portion. .
The obstacle sensing unit support member 21 is disposed so as to extend over substantially the entire length of the support member 20 in the opening / closing body opening / closing direction, and at the corner on the bottom surface side (the right surface side in FIGS. 3 and 4) in the support member 20. It is aligned with the part and fastened detachably.

  According to the above configuration, the obstacle sensing unit support member 21 swings and moves in the opening / closing body thickness direction and the opening / closing body width direction of the discharge-side non-contact sensing unit 30a (or the capture-side non-contact sensing unit 30b). To prevent the path s of the obstacle sensing medium formed between the emitting unit 31 and the capturing unit 32 from being shifted or inclined.

In addition, heating means 40 is mounted in the support member 20 so as not to be buffered with movable parts such as the opening / closing body 10, the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b, and the electric wiring guide member 35. Has been.
The heating means 40 may be anything as long as it generates heat by supplying power from a control unit (not shown). For example, a heater in which a heating element that generates heat when energized is covered with a heat conductive protective film is used, and a thermostat is used. It generates heat while maintaining a substantially predetermined temperature by a temperature control device such as.
According to an example of the present embodiment, the heating means 40 is a support target portion that is a heating target portion over substantially the entire length of the support member 20 in the opening / closing body opening / closing direction so as to transmit heat to every corner of the opening / closing device 1. The member 20 is in contact with the inner surface.

The heating means 40 is controlled to automatically start heating according to a predetermined condition.
As a preferable specific example of the control of the heating means 40, for example, when the outside air temperature or the temperature of the heating target part is detected by a temperature sensor (not shown) and the detected temperature is equal to or lower than a predetermined temperature, the heating means 40 starts to energize.
According to this specific example, the power consumption can be reduced by energizing the heating means 40 only when the temperature is equal to or lower than the predetermined temperature at which freezing or the like is likely to occur.

  Further, as another specific example of the control of the heating means 40, a timer or a counter (not shown) is provided, and the heating means 40 is only in a time zone where the temperature is relatively low or only when the temperature is relatively low (for example, winter). It is good also as a structure which energized to. Furthermore, the heating means 40 may be energized when a plurality of conditions such as a temperature condition, a time condition, and a time condition are satisfied.

  According to the opening / closing device 1 having the above-described configuration, when the lid portion 24 is removed, the support member 20 is formed with an opening in which the opening / closing body insertion opening 20a and the maintenance opening 20b are continuous. From this opening, internal parts such as the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b, the electrical wiring guide member 35, the heating means 40, and both the buffer members 20c and 20c are attached / detached / replaced or repaired Maintenance of the support member 20 such as removing foreign matter in the support member 20 can be performed. Moreover, if the cover part 24 is removed, attachment / detachment exchange of the buffer members 20c and 20c can also be performed easily.

  When removing the lid 24, the lid 24 is composed of a plurality of lid members 24 a, 24 b, 24 b arranged in the opening / closing body opening / closing direction, so that the maintenance inside the support member 20 can be performed only by removing one member. it can. In addition, the lid member 24a is buried in the ground, floor, lower frame or the like, and is composed of the opening / closing body insertion opening 20a and the maintenance opening 20b by removing the other lid member 24b. Maintenance space can be secured.

Further, when attaching or detaching the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b, the obstacle sensing unit support member 21 may be attached to or detached from the main body 22 of the support member 20, Workability is good. Moreover, since the obstacle sensing unit support member 21 can be divided in the opening / closing body opening / closing direction at the time of attachment / detachment, the attachment / detachment of the obstacle detection unit support member 21 may be performed only partially.
Hereinafter, a preferable example of a procedure for removing the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b from the support member 20 and the opening / closing body 10 will be described.
First, the opening / closing body 10 is stopped at an intermediate position in the opening / closing direction.
Then, the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b is maintained in a state of being slid in the opening / closing body opening direction by hand or the like, and one part (divided part) of the obstacle sensing unit support member 21 is maintained. And a part on the closing direction side of the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b in the above state is removed from the support member 20.
Next, the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b is slid in the opening / closing body closing direction. At this time, the space between the engagement grooves 34 e and 34 e of the unit main body 34 is elastically expanded, and the unit main body 34 is removed from the engaged portion 12 g of the opening / closing body 10. Then, the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b is further slid in the opening / closing body closing direction, and the remaining part of the obstacle sensing unit support member 21 (a part other than the above-mentioned part) From the portion fixed to the support member 20), it comes out in the closing direction of the opening / closing body and is separated from the obstacle sensing unit support member 21 and the opening / closing body 10.
According to this procedure, the release-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b can be removed simply by removing one part of the obstacle sensing unit support member 21 from the support member 20, and its workability is improved. Is good.

Further, when the opening / closing device 1 is used in a field situation where the outside air temperature is low, the inside of the support member 20 is heated by the heating means 40, so that the components in the support member 20 are frozen, the discharge part 31 and / or Or the condensation of the capture part 32 etc. can be prevented.
That is, the slide of the discharge-side non-contact sensing unit 30a or the capture-side non-contact sensing unit 30b is blocked by freezing, the sensing accuracy decreases due to condensation, or the electrical wiring guide member 35 freezes and stops moving. , Adverse effects due to freezing and condensation can be reduced.

The support member 20 in the opening / closing device 1 may be replaced with a support member 20 ′ shown in FIG.
The support member 20 ′ is provided with a plurality of maintenance openings 20 b ′ at predetermined intervals in the opening / closing body opening / closing direction in portions other than the predetermined portions on both ends in the opening / closing body opening / closing direction of the support member 20 ′. The maintenance opening 20b 'is closed by a lid 24' so that it can be opened and closed. The predetermined part is a part on the opening / closing body closing direction side that may be buried in the floor surface, the ground, the lower frame, etc., and the opening / closing body storage device or the lintel member in the support member 20 ′. It is a site on a certain opening / closing body opening direction side.

  According to the support member 20 ′, by reducing the opening area of the maintenance opening 20b ′ to the minimum necessary area, it is possible to prevent the strength of the support member 20 ′ from being reduced, and the both end sides of the support member 20 ′ are Even in a use situation where the device is buried, it is possible to easily remove only the lid portion 24 'where maintenance is required.

  Next, another example of the switchgear according to the present invention will be described. In addition, in the switchgear shown below, about the structure substantially the same as the switchgear 1 mentioned above, while using the same code | symbol as the switchgear 1, the detailed description which overlaps is abbreviate | omitted.

The opening / closing device 2 shown in FIGS. 7 and 8 includes a heating means 40 ′ in the seat plate member 12 ′.
As shown in FIG. 8, the seat plate member 12 ′ includes a fixing portion 12 a ′ connected and fixed to the opening and closing body main body 11 of the opening and closing body 10, and a hollow shape that slides in the opening and closing body opening and closing direction with respect to the fixing portion 12 a ′. It consists of movable part 12b '(refer FIG. 8).

  The fixed portion 12a ′ includes a sensing portion 12a1 ′ and a swinging member 12a2 ′ therein, and the movable portion 12b ′ moves in the opening / closing body opening direction by contact with an obstacle or the like. The sensing unit 12a1 ′ senses that the rocking member 12a2 ′ has rocked. The sensing unit 12a1 'can be, for example, a contact type sensor such as a limit switch or a non-contact type sensor such as a proximity switch.

Further, the movable part 12b ′ is provided with heating means 40 ′ over substantially the entire length in the opening / closing body width direction.
The heating means 40 ′ is a heater that generates heat when energized, and is in contact with the inner surface of the movable portion 12b ′. And this heating means 40 'receives the supply of electric power from the control part which is not illustrated via the electric wiring guide member 35 in support member 20, for example.

According to the opening / closing device 2, the seat plate member 12 ′ freezes on the contact target portion (floor surface, ground, lower frame, etc.), or the movable portion 12b ′ of the seat plate member 12 ′ is fixed to the fixed portion 12a. It can effectively prevent 'freezing' and not working.
The opening / closing device 2 may be configured not to include the heating means 40 in the support member 20 described above, or like the opening / closing device 1, the heating means 40 may be provided in the support member 20 to support the opening / closing device 2. Condensation or freezing of parts in the member 20 may be prevented.
In addition, according to FIG. 7, the non-contact obstacle sensing unit 30 is not illustrated, but the opening / closing device 2 may include the obstacle sensing unit 30 substantially the same as the switching device 1, The obstacle sensing unit 30 may be omitted.

Further, the opening / closing device 3 shown in FIG. 9 has a configuration including a heating means 40 ″ of another aspect.
The heating means 40 ″ is a warm air generating device that generates warm air when energized. According to a preferred example of the illustrated example, the generated warm air is generated in the seat plate member 12 in the opening / closing body 10 in the closed state. It is being fixed in the support member 20 so that it may distribute | circulate to.
According to this opening / closing device 3, a part of the warm air by the heating means 40 ″ is circulated through the hollow seat plate member 12 in the opening / closing body width direction, and the other part is in each support member 20. Distributed.
Therefore, according to the opening / closing device 3, the seat plate member 12 and the contact target portion (floor surface, ground, lower frame, etc.) are frozen, and the end portion of the seat plate member 12 in the width direction and the support member 20 It is possible to prevent freezing, freezing of parts in each support member 20 and condensation.

  According to the illustrated example, the opening / closing device 3 does not include an obstacle sensing unit. However, unlike the opening / closing device 1, the opening / closing device 3 includes a non-contact type obstacle sensing unit, It is also possible to provide a contact type obstacle sensing unit. In this case, the dew condensation of the obstacle sensing unit, the slide failure, etc. can be prevented by the warm air of the heating means 40 ″.

  Further, according to the illustrated opening / closing device 3, the heating means 40 ″ is arranged so as to circulate the warm air inside the seat plate member 12 in the closed state. You may arrange | position so that a warm air may be distribute | circulated to a body opening / closing direction. In this case, it is possible to more effectively prevent the components in the support member 20 from being condensed or frozen by the warm air of the heating means 40 ″.

  In addition, in each aspect of the opening / closing device described above, a detailed description of the storage device for storing the opening / closing body 10 is omitted, but this storage device is an embodiment in which the opening / closing body 10 is wound up or fed out. Alternatively, the opening / closing body 10 may be housed in the opening direction without being wound up and fed out from the opening direction.

Moreover, in the said embodiment, if the location where the heating means 40 (or 40 ', 40 ") is arrange | positioned is a site | part which contacts the opening / closing body 10 and / or the opening / closing body 10, it will be limited to the said embodiment. For example, a contact target portion (a floor surface, a ground, a lower frame, or the like) that contacts when the opening / closing body 10 is fully closed may be used. It is possible to effectively prevent the contact target portion from freezing.
In addition, the heating means (40, 40 ′, or 40 ″) may be replaced with another mode that directly or indirectly heats the heating target part as long as it transmits heat when heat is generated. .

Moreover, in the said embodiment, arrangement | positioning of the opening part 20b for maintenance will not be limited to the example of illustration if it is the outer peripheral part of the supporting member 20, For example, the bottom face (right side in FIG. 3) of the supporting member 20, Further, the front surface or the back surface of the support member 20 (the upper surface or the lower surface in FIG. 3) or the like can be used.
However, since the bottom surface, the upper surface, the lower surface, etc. may be buried in the housing that is the installation target of the switchgear depending on the situation on the site, the maintenance opening 20b, like the support member 20 in the illustrated example, It is preferable to be disposed on a surface that engages with the opening / closing body 10.
Furthermore, from the viewpoint of improving crime prevention, the maintenance opening 20b is located on the back side of the opening / closing body 10 (below the opening / closing body 10 in FIG. 3), for example, the interior side such as indoors, as illustrated. It is preferable to arrange in the above.

The principal part perspective view which shows an example of the switchgear concerning this invention. The disassembled perspective view which shows an example of the supporting member in the switchgear. Sectional drawing of the principal part of the switchgear. It is principal part sectional drawing of the switchgear, Comprising: The cover part was removed and the state which removed the internal component is shown. The principal part disassembled perspective view of the switchgear. The disassembled perspective view which shows the other examples of a supporting member. The principal part perspective view which shows the other examples of the switchgear concerning this invention. Sectional drawing of the seat board member in the opening / closing apparatus shown in FIG. The principal part perspective view which shows the other examples of the switchgear concerning this invention.

1, 2, 3: Opening / closing device 10: Opening / closing body 12, 12 ′: Seat plate member 20, 20 ′: Support member 20b, 20b ′: Maintenance opening 21: Support member 24, 24 ′ for obstacle detection unit Lid 30: Obstacle sensing unit 30a: Release-side non-contact sensing unit 30b: Capture-side non-contact sensing unit 40, 40 ': Heating means 40 ": Heating means (warm air generator)

Claims (4)

In the opening / closing apparatus adapted to support the end portion side in the width direction of the opening / closing body by a hollow support member,
The support member is attached to the housing;
A maintenance opening that communicates the outer periphery of the support member to the inside and outside, and a lid that closes the maintenance opening so as to be openable and closable.
The support member is provided with an opening / closing body insertion opening for inserting an end of the opening / closing body in the width direction,
The opening for maintenance is arranged so as to be continuous with the casing side toward the opening / closing body thickness direction with the opening / closing body insertion opening when opened .
In the support member, a part of the obstacle sensing unit mounted on the end of the opening / closing body in the width direction is disposed in the space portion on the side of the casing toward the opening / closing body thickness direction than the opening / closing body,
The portion of the support member where the obstacle sensing unit is disposed includes a space portion on the opposite side of the housing side toward the opening / closing body thickness direction than the opening / closing body in the support member,
An opening / closing apparatus characterized in that an opening width of the maintenance opening and the opening / closing body insertion opening has a width that allows the obstacle sensing unit to be extracted from the support member to the outside . The support member includes an obstacle detection unit support member that supports the obstacle detection unit, and the obstacle detection unit support member is detachably attached to the main body of the support member. The switchgear according to claim 1. 3. The switchgear according to claim 2 , wherein the obstacle sensing unit is disposed closer to the maintenance opening than the obstacle sensing support member . The obstacle sensing unit support member is provided over the opening / closing body opening / closing direction and can be divided in the opening / closing body opening / closing direction so as to move the obstacle sensing unit integrally with the opening / closing body in the opening / closing body opening / closing direction. The switchgear according to claim 2 or 3 , comprising a plurality of parts as described above.

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