JP4279696B2 - Locking structure for lid member of switchgear - Google Patents

Description

  The present invention relates to a shutter device including an overhead door, a door, a sliding door including a shutter, a window, a roll screen, a blind, an awning device, a gate, a gate, a sliding wall device, and the like. In particular, the present invention relates to a locking structure of an opening / closing device lid member that is preferable for application to a shutter device.

Conventionally, in this type of invention, for example, as described in Patent Document 1 as the second form, a box (12) having an opening on the front side, and the opening of the box (12) is formed into a hinged door. A lid (52) that opens and closes, a hinge pin (54) that pivotally supports the lid (12), a frame-shaped cover (50) disposed around the lid (12), and the box ( 12) An operation button (30) arranged in the inside and enabling control operation of the opening / closing body and a lock plate (58) (clasp member) on the lid (52) side are engaged with the box (12). There is a switch box provided with a locking device (56) that makes the lid (52) unopenable.
This switch box has excellent advantages such as that the operation button (30) is not exposed from the wall surface and that the mounting operation is easy by devising the support structure of the decorative plate (46) that conceals the electrical wiring. There are many.

However, according to the prior art, even when the lid (52) is closed and locked by the locking device (56), a slight third around the lid (52) is obtained by a malicious third party. When a jig such as a spatula or a shaft is inserted into the gap, and the lid (52) is forcibly pulled by the jig and pulled forward, the lock plate (58) (clasp member) The lid (52) may be opened due to deformation, the proximal end of the lock plate (58) coming off, or the hinge pin (54) coming out of the pivotal support. is there.
Japanese Patent Laid-Open No. 10-162678 (see FIGS. 3 and 4)

  The present invention has been made in view of the above-described conventional circumstances, and the subject matter thereof is that the lid member is intentionally opened and the opening / closing body is illegally operated by a forceful opening operation or the like with respect to the lid member. It is an object of the present invention to provide a locking structure for an opening / closing device lid member that can prevent this from occurring.

In order to solve the above-mentioned problem, the first means includes an opening communicating with an apparatus for operating the opening / closing body, a lid member capable of opening / closing the opening, an unlocking provided on the lid member from the outside, and An opening / closing device lid member provided with a lock mechanism that is locked and a clasp-like member that engages with a side portion in the opening portion and interlocks with the operation of the lock mechanism to make the closed lid member unopenable. In this locking structure, the lid member is formed by arranging a plurality of lids in a substantially polymerized state in the thickness direction at least in the closed state.

Here, the opening / closing device to which the locking structure of the means is applied is an opening / closing device that partitions or opens a space by opening / closing operation of the opening / closing body, and is used such that the opening / closing body performs only opening operation. A mode in which the opening / closing body is used to perform only a closing operation, a mode in which the opening / closing body is used to perform both an opening operation and a closing operation, and the like are included.

The means includes an aspect in which the locking structure is disposed on the opening / closing device itself, an aspect in which the locking structure is disposed on a structure side where the opening / closing device is installed, and the locking structure is provided on the opening / closing device. The aspect etc. which are arrange | positioned at the operation body for operation are included.
That is, as a specific example of an aspect in which the locking structure is disposed in the opening / closing device itself, a configuration in which the locking structure is provided in an inspection port as the opening portion, or the like can be given.
In addition, as a specific example of an aspect in which the above-described locking structure is disposed on a structure-side part where the switchgear is installed, a device for operating the switcher on the ceiling or wall of the building where the switchgear is installed In the case where there is an inspection port that communicates, a configuration in which the above-described locking structure is provided in the inspection port may be used.
Further, when the locking structure is disposed in an operating body for operating the opening / closing device, the operating body includes a signal for opening the opening / closing body, a signal for closing the opening / closing body, and an opening / closing body in operation. The control signal for controlling the opening / closing body, such as a signal for stopping the operation, is output, and both the mode connected to the control circuit unit of the opening / closing body and the mode wirelessly connected to the control circuit unit of the opening / closing body are provided. Including.
Further, the operation body is configured such that the opening / closing body is operated only in the opening direction, the opening / closing body is operated only in the closing direction, and the opening / closing body is operated in the opening direction and the closing direction. Including embodiments.
Further, the operation body includes an aspect externally attached to the surface of the housing wall surface and the opening / closing device, an embodiment embedded in the housing wall surface, the opening / closing device, and the like. From the viewpoint of improving the temperature, the switchgear itself or the vicinity of the switchgear is preferable.

  Specific examples of the “device for operating the opening / closing body” include an operation switch unit for operating the opening / closing body, a signal line, an electric wire, a control circuit, a control component, and a drive for operating the opening / closing body. Power source (for example, motor, switch, etc.), power transmission mechanism (for example, chain and sprocket, belt and pulley, gear, etc.) for transmitting the power of the drive source, mechanism for manually opening and closing the opening / closing body with a chain, opening and closing Examples include a switch or a clutch that switches the body operation to a manual mode or an electric mode.

  The lid member may be a member that opens or closes the opening. The lid member has a mode in which the opening is opened and closed in a door-like manner by being pivotally supported on the opening side, and the opening is opened or closed by a sliding operation. And a mode in which the opening is opened or closed by being attached to and detached from the opening.

The lock mechanism may be a mechanism that operates a part located on the back side of the lid member by a special operation from the outside.
Specific examples of the lock mechanism include a mode in which a portion located on the back side of the lid member is operated by operating a key member inserted from the outside, and an ID code storage body such as an electronic key, a magnetic card, or an IC card. A mode in which a part located on the back side of the lid member is operated by being contacted or approached from a side, a mode in which a part located on the back side of the lid member is operated by inputting a code, etc., by a wired or wireless remote control operation A mode in which a portion located on the back side of the lid member is operated is exemplified.
Note that the configuration of the site located on the back side of the upper Kifuta member, and embodiments in which the site is substantially rotational movement, embodiments in which the site is substantially linear motion, a mode such that the site is substantially rotational and substantially linear movement However, in order to simplify the structure of the lock mechanism and improve the productivity, it is preferable that the part be rotated.
The clasp-like member is fixed to an operation part in the opening in the lock mechanism, and engages with a side in the opening in conjunction with the operation of the lock mechanism so that the lid member in the closed state cannot be opened. If it is a member to be used, its shape and material are not limited, and it is preferably formed from a metal material from the viewpoint of improving strength and manufacturability.

The term “substantially polymerized” as used in the above means includes both an aspect in which the lids are polymerized in contact with each other and an aspect in which an arbitrary space is secured between the lids.

As a specific form of the lid member in the closed state, in the second means , at least one of the plurality of lids in the closed state of the lid member has its edge part relative to the edge part of the other lid body. It arrange | positions in the state shifted | deviated, The side part in the said opening part adjoins or contacts from the side with respect to the said several edge part, It is characterized by the above-mentioned.

Further, in the third means , the lid body is supported in the shape of an open door, and at least one of the plurality of lid bodies has their opening directions opposite to each other with respect to the other lid bodies. It is supported by.

The fourth means is characterized in that at least two or more of the plurality of lids are integrated.
As an integral form here, for example, a form in which a plurality of lids are integrated by penetrating and attaching to each lid that superimposes the cylinder in the lock mechanism, or the lids are bonded, welded or screwed together The form etc. which integrate the some cover body can be illustrated.

Further, in the fifth means , an opening communicating with the device for operating the opening / closing body, a lid member capable of opening / closing the opening, and a lock provided on the lid member and unlocked and locked from outside In the locking structure of the opening / closing device lid member comprising a mechanism and a clasp-like member that engages with a side portion in the opening portion in conjunction with the operation of the lock mechanism and makes the lid member in a closed state unopenable, The lid member is molded so that the edge thereof is multi-staged in the thickness direction, and the side portion in the opening is close to or in contact with the edge from the side.

Here, the lid member is an integral body formed into a desired shape by casting, forging, drawing or the like.
Further, the thickness of the lid member may be the same as that of a commonly used lid member, but is preferably about the same thickness as that obtained by polymerizing and integrating a plurality of lid bodies, for example, as in the fourth means. It is.

Further, the sixth means is characterized in that the opening communicates with an operation switch as a device for operating the opening / closing body.

Here, the operation switch unit may be one or a plurality of switches operated to control the opening / closing body such as an opening operation, a closing operation, and a stop.
The operation switch unit includes a pushbutton switch that opens and closes a contact when pressed, a key switch that enables an opening and closing operation of the opening and closing body by operating a key member inserted from the outside, and the like. In addition, the operation switch may be configured to include only one of the push button switch and the key switch, or may be configured to include both.
Further, the operation switch unit is operated to lock or unlock the lock mechanism that locks or unlocks the opening / closing body by performing key operation, push button operation, remote operation, code input, or the like. The aspect etc. which output the signal for this are included.
Further, when the operation switch unit is constituted by a single switch, the opening / closing body may be configured to perform only an opening operation or only a closing operation by operating the switch, or the switch is operated. A mode in which the opening / closing body is caused to perform two or more operations such as an opening operation, a closing operation, and a stop according to the number of times may be used.

Further, in the seventh means , a frame member is provided so as to surround a peripheral side surface of the lid member, and the frame member includes a hard layer that prevents penetration of the drill and a fiber layer that can be entangled with the drill, It is characterized by having a multilayer structure including one or both layers.

Here, the multilayer structure may be a configuration in which one or both of the single or plural hard layers and the single or plural fiber layers are arranged in the thickness direction of the lid member. .
This multilayer structure includes a mode in which the layers are substantially in close contact, a mode in which the layers are spaced in the thickness direction, a part of the layers is in close contact, and the other part is spaced.

Further, in the eighth means , the operation switch part includes an opening switch for operating the opening / closing body in the opening direction, and one or both of the lock mechanism and the clasp member are The lid member is provided so as to substantially cover the front of the opening switch when the lid member cannot be opened by the clasp member.

Further, the seventh means, the even independent means not having the configuration described as a feature of the first to sixth any one means, operational effects substantially the same operational effects of the seventh means to be described later Play.
That is, the locking structure of the opening / closing device lid member of this means includes an opening communicating with the device for operating the opening / closing body, a lid member capable of opening / closing the opening, and an external unlocking provided on the lid member. An opening / closing device lid comprising: a lock mechanism that is locked; and a clasp-like member that engages with a side portion in the opening in conjunction with the operation of the lock mechanism so that the closed lid member cannot be opened. In the locking structure of the member, a frame member is provided so as to surround a peripheral side surface of the lid member, and the frame member is one of a hard layer that prevents penetration of the drill and a fiber layer that can be entangled with the drill, or It is characterized by being comprised in the multilayer structure containing both layers.

Also, the eighth means, wherein even independent means not having the configuration described as a feature of the first to seventh any one means, operational effects substantially the same operational effects of the eighth means to be described later Play.
That is, the locking structure of the opening / closing device lid member of this means includes an opening communicating with the device for operating the opening / closing body, a lid member capable of opening / closing the opening, and an external unlocking provided on the lid member. An opening / closing device lid comprising: a lock mechanism that is locked; and a clasp-like member that engages with a side portion in the opening in conjunction with the operation of the lock mechanism so that the closed lid member cannot be opened. In the locking structure of the member, the operation switch portion includes an opening switch for operating the opening / closing body in the opening direction, and one or both of the lock mechanism and the clasp member are the lid member. Is provided so as to substantially cover the front of the opening switch when it cannot be opened by the clasp-like member .

Since the above means is configured as described above, the following effects can be obtained.
According to the first means , when the lid member is closed and the lock mechanism is keyed from the outside, the clasp-like member is engaged with the side portion in the opening in accordance with the operation of the lock mechanism, and the lid member Is locked and cannot be opened.
And the cover member in a closed state is comprised in the state which the some cover body superposed | polymerized.
Therefore, even if the lid member is forcibly opened, it is necessary to sequentially open a plurality of lids one by one, or the lid member is thickened by overlapping the lids, and the strength of the lid member itself is increased. Since it becomes more difficult to open the line, it is possible to extend the time required for opening the line to give the person a mental impatience and abandon the continuation of the opening process from this impulsion. I can expect.
In addition, the time required for the through fracture can be extended by the use of a plurality of lids and the increase in the thickness due to the polymerization of the lids even with respect to the through fracture caused by the drill.
That is, it is possible to delay the crime time, reduce the willingness to commit the crime, and consequently prevent the lid member from being intentionally opened and the opening / closing body from being illegally operated.

Furthermore, according to the second means , since the gap between the edge portion of the lid and the side portion in the opening portion is formed in a substantially zigzag shape in the thickness direction, the driver used at the time of crease opening It is possible to make it difficult to insert a tool such as a crowbar or a bar, and it is also effective for suppressing intrusion of condensed water, dust, dust and the like.
In other words, it is effective in that it makes it difficult to perform the opening operation of the lid member and prolongs the opening time of the lid member, and also suppresses dirt in the opening due to condensed water, dust, dust, etc. Is also effective.

Further, according to the third means , even if the uppermost lid member is peeled open, a further lid member appears below the upper lid member, and the lid member is opposite to the opening direction of the uppermost lid member. Since it is oriented, the uppermost lid and the shaft member that supports the lid can be an obstacle to the insertion of the tool used when the second lid is opened.
That is, it is effective in that it makes it difficult to perform the opening operation of the lid member and prolongs the opening time of the lid member.

Furthermore, according to the fourth means, it is possible to provide a specific configuration in which the thickness of the lid is increased to improve its strength.
That is, it is effective in that it makes it difficult to perform the opening operation of the lid member and extends the opening time.

Further, according to the fifth means , since the gap between the edge of the lid member and the side portion in the opening is formed in a substantially zigzag shape in the thickness direction, the driver used when opening the knurled paper It is possible to make it difficult to insert a tool such as a crowbar or a bar, and it is also effective for suppressing intrusion of condensed water, dust, dust and the like.
That is, as with the second means , it is effective in that it makes it difficult to perform the opening operation of the lid member and extends the opening time of the lid member, and in addition, the opening due to condensed water, dust, dust, etc. It is also effective in suppressing dirt in the part.
Furthermore, if the thickness of the lid member is increased, a specific configuration can be provided in which the thickness of the lid is increased and the strength thereof is improved, as in the third means .
That is, it is effective in that it makes it difficult to perform the opening operation of the lid member and extends the opening time.

Furthermore, according to the sixth means , since the opening communicates with the operation switch, it is possible to more effectively prevent the opening / closing body from being operated illegally.

Furthermore, according to the seventh means , it is possible to prevent a drill or the like from being obliquely penetrated into the frame member from the outside.
That is, when the frame member has a multilayer structure including a hard layer, penetration of the frame member by a drill or the like can be prevented by the hard layer.
Further, when the frame member is configured to have a multilayer structure including a fiber layer, the fiber can be entangled with a drill or the like that attempts to penetrate the frame member, thereby making it difficult to rotate the drill.
Therefore, it is possible to delay the crime time and reduce the willingness to commit a malicious third party who tries to operate the operation switch unit with the drill tip by drilling the frame member diagonally. As a result, it is possible to prevent the opening / closing body from being illegally opened by operating the opening switch with a drill or the like penetrated.

Furthermore, according to the eighth means , if a criminal attempt is made to open the open / close body by penetrating the lid member with a drill or the like and operating the release switch with the tip of the drill or the like, Since one or both of the lock mechanism and the clasp member is provided in front of the switch, the lock mechanism and the clasp member prevent penetration by a drill or the like. Therefore, it is possible to prevent the opening / closing body from being opened illegally by operating the opening switch with a drill or the like penetrating.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The opening / closing device lid member locking structure according to the present embodiment is disposed in or inside an opening or in a building / structure such as a house, building, warehouse, factory, underground shopping street, tunnel, vehicle loading platform, etc. An operation body used in a so-called shutter device for partitioning or opening a space inside the housing by opening and closing the portion will be described as an example applied to an operation body for controlling the opening / closing body.
First, a first embodiment will be described with reference to FIGS.

  The operating body A includes a casing 10 having an opening 10a on the front side (upper side according to FIG. 1), a lid member 20 that opens and closes the opening in a door shape, and a key operation from the outside provided on the lid member 20. The lock mechanism 30 to be engaged with the side portions 12a and 12d of the inner box 12 (to be described later) in the casing 10 in conjunction with the rotation operation of the lock mechanism 30 so that the lid member 20 in the closed state cannot be opened. A clasp-like member 40 and a plurality of operation switch portions 50 disposed inside the housing 20 with respect to the lid member 20 in a closed state, and control of an opening / closing body (not shown) by operating these operation switch portions 50 Enable.

The housing 10 includes an operation switch section 50 and the communication opening 10a through for operating the closing member is configured to the opening 10a on the front side a substantially box-like towards the (upper side in FIG. 1).
And this housing | casing 10 surrounds the surrounding side surface of the outer box 11 embedded in the housing | casing wall surface q except the opening part surface, the above-mentioned inner box 12 fastened in the said outer box 11, and the cover member 20. FIG. The cover member 20 is pivotally supported by the front side in the inner box 12 so that rotation is possible.

  The outer box 11 is formed in a substantially rectangular box shape having an opening on the front side, a bracket 11a having a substantially L-shaped cross section is fixed to the inner side surface of the side part, and the bottom of the inner box 12 is mounted on the front side surface of the bracket 11a. Is screwed.

The inner box 12 is formed in a substantially rectangular box shape having an opening on the front side and substantially smaller than the outer box 11, and one end portion of a clasp-like member 40 described later is engaged with and disengaged from the side portion 12a. The engaged portion 12a1 is formed on the side portion 12d with an engaged portion 12d1 that engages and disengages the other end portion of the clasp-like member 40 described later.
Further, the entire periphery of the open end of the inner box 12 is bent in a substantially inverted L shape outwardly to form a fixing surface 121 with the frame member 13.

The engaged portions 12a1 and 12d1 are formed in a substantially rectangular hole shape in which each end portion of the clasp-like member 40 described later can be through-engaged.
These engaged portions 12a1 and 12d1 are not limited to the illustrated through holes, and may be configured not to penetrate the side portions 12a and 12d, such as recesses and grooves.

Further, an operation switch 50 is penetrated and attached to the bottom surface of the inner box 12. The operation switch unit 50 includes a plurality of switches such as a stop switch 51, an open switch 52, and a close switch 53, and each switch is a so-called push button switch that opens and closes an internal contact by a push operation from the outside. Electrical wiring is provided to a control unit (not shown) outside the operation body A.
Among these switches, the opening switch 52 is arranged so that the front side thereof is covered with the clasp-like member 40 and the lock mechanism 30.
According to the arrangement of the release switch 52, if the lid member 20 is intentionally drilled with a drill drilling tool or the like (for example, a hand drill or an electric drill), the drill of the tool or the like is directed toward the release switch 52. Perforation can be blocked by the clasp-like member 40 and the lock mechanism 30.

  The inner box 12 having the above-described structure is provided with a shaft member 60 that rotatably supports the lid member 20 across both side portions 12b and 12c intersecting the side portions 12a and 12d.

The frame member 13 is formed by integrating a metal member having a substantially inverted L-shaped cross section into a substantially rectangular frame shape, and is fixed to the opening edge of the inner box 12 by fixing means such as welding.
The inner surface side of the frame member 13 has a multilayer structure including hard layers 13a and 13b that prevent penetration of a drill such as a drill drilling tool and a fiber layer 13c that can be entangled with the drill.
In addition, the frame member 13 has three open end portions 132, 133, and 134 excluding an open end portion 131 on the shaft member 60 side, which will be described later, positioned in the middle of the fixed surface 121, thereby fixing the fixed surface of the part. 121 is partially exposed.
Further, the opening end portion 131 extends over the fixed surface 121 on the shaft member 60 side, which will be described later, to the inside of the inner box 12, and the lid member 20, which will be described later in the closed state, contacts the back surface of the protruding portion 135. The exposed fixing surface 121 constitutes a receiving surface of the lid member 20 to be described later. Hereinafter, the exposed fixing surface 121 will be described as a receiving surface, and the receiving surface will be denoted by reference numerals. 122 is attached.

The hard layers 13a and 13b are formed by fixing a hard material that is difficult to drill with a drill, such as hardened steel or ceramic material, to the inner surface of the frame member 13. According to the illustrated example, the hard layer 13a has a cross-section. The substantially reverse L-shaped frame member 13 is disposed on the inner surface of the front side portion, and the hard layer 13 b is disposed on the inner surface of the side portion of the frame member 13.
According to this configuration, if the frame member 13 is intentionally drilled with a drill drilling tool or the like, the tip of the drill such as the drill drilling tool cannot easily penetrate the hard layer 13a or the hard layer 13b. Therefore, the criminal act which tries to operate the operation switch part 50 with the front-end | tip of the drill penetrated diagonally with respect to the frame member 13 can be prevented.

In addition, the fiber layer 13c may be formed by bundling a large number of fibers having a length enough to be entangled with the drill tip of the drill drilling tool, and more preferably fire resistance, flame resistance, heat resistance, and the like. For example, rock wool fiber, glass fiber, aramid fiber, etc. are used. The fiber layer 13c is fixed so as to cover the inner surfaces of the hard layers 13a and 13b.
According to the fiber layer 13c, if the frame member 13 is intentionally drilled with a drill drilling tool or the like, the fibers of the fiber layer 13c are entangled with the tip side of the drill, making it difficult to rotate the drill.
Therefore, it is possible to reduce the willingness to commit a criminal who tries to operate the operation switch unit 50 with the tip of a drill that is inserted obliquely into the frame member 13.

  In the present embodiment, the hard layers 13a and 13b, the fiber layer 13c, and the fiber layer 13c are provided inside the frame member 13, thereby effectively preventing penetration by a drill and improving crime prevention. However, from the viewpoint of reducing the component cost, one of the hard layers 13a and 13b and the fiber layer 13c is omitted, or one of the hard layer 13a and the hard layer 13b is omitted. It is also possible.

Further, the lid member 20 is configured by superposing and integrating a plurality of lid bodies using, for example, a metallic substantially rectangular plate member.
In the present embodiment, the three lid bodies 20a, 20b, and 20c are polymerized in contact with each other, and are integrated by penetrating and fixing the lock mechanism 30 to the lid bodies 20a, 20b, and 20c.
The lid body 20 a is substantially flat and forms a surface layer of the lid member 20.
The lid body 20b is formed by integrally forming projecting pieces 21, 22, 23, 24 facing the inside of the housing 10 at the side end portions thereof by bending into a substantially U-shaped cross section. An intermediate layer of the lid member 20 is configured.
The lid body 20 c is substantially flat and forms the lowermost layer of the lid member 20.

More specifically, as shown in FIG. 4, the lid 20a has three edge portions 20a2, 20a3, and 20a4 excluding the edge portion 20a1 on the shaft member 60 side projecting outward from the lid body 20b, and the edge portion 20a1 is covered with the lid portion 20a1. The contact surface 20b1 that is supported in contact with the back surface of the overhang portion 135 is shifted to a position where it can be secured on the fixed surface 121 of the body 20b.
That is, with the lid member 20 closed, the protruding edges 20a2, 20a3, 20a4 are supported by the receiving surface 122, and the back surface of the protruding portion 135 is supported by the contact surface 20b1. .
The lid 20b is supported by the shaft member 60 on the right side in FIG. 1 so as to be openable and closable like an open door in the inner box 12, whereby the lid member 20 is opened and closed.
The lid 20c is superposed so as to be surrounded by the protruding pieces 21, 22, 23, 24 in the lid 20b.
The lids 20b and 20c constitute a hard layer that prevents penetration of the drill, like the hard layers 13a and 13b and the fiber layer 13c of the frame member 13 described above.

Depending on the overlapping form of the lids 20a, 20b, and 20c, the action of inserting a spatula-shaped tool such as a flat-blade screwdriver or a shaft-like tool from the gap around the lid 20a in FIG. This can be made difficult by the receiving surface 122 and the contact surface 20b1 facing the gap.
Moreover, since the insertion path | route of tools etc. to the thickness direction from the said clearance gap becomes zigzag shape, it can make it difficult to perform the insertion act.
Further, the projecting piece portions 21, 22, 23, 24 improve the bending strength of the lid member 20 to prevent deformation or destruction due to criminal acts and the like, and in the gap around the lid member 20, It is possible to prevent the cover member 20 from being forcibly opened by inserting a spatula-like tool such as a flat-blade screwdriver or a shaft-like tool.

Support members 12e for supporting the projecting piece portions 22, 23, 24 are provided on the three side portions 12a, 12b, 12c excluding the side portion 12d of the inner box 12.
The support member 12e stands in parallel with the support surface 12e1 that supports the projecting piece portions 22, 23, and 24, and the projecting piece portions 22, 23, and 24 adjacent to the inside from the end of the support surface 12e1. The reinforcing plate 12e2 is provided.
In the support member 12e, the support surface 12e1 supports the projecting pieces 22, 23, 24 when the closed lid member 20 is forced to be pushed into the housing 10 by pressing force from the outside. In this way, the cover member 20 is prevented from being damaged.
Further, in the closed state of the lid member 20, the protruding piece portions 22, 23, 24 are fitted between the reinforcing plate 12 e 2 and the side portions 12 a, 12 b, 12 c of the inner box 12. 22, 23, 24 and the side portions 12 a, 12 b, 12 c, the support surface 12 e 1, and the reinforcing plate 12 e 2, the zigzag form of the insertion path of the tool or the like from the gap is further complicated. The insertion action can be made more difficult.

  The lock mechanism 30 has an internal structure that fits in a concavo-convex shape in a radial direction with a key member 31 that is inserted and rotated from the outside, and an output shaft 32 that protrudes to the inside of the housing 10 by a rotation operation of the key member 31 is substantially provided. This is a so-called lock that is rotated 90 degrees, and a clasp-like member 40 is integrally attached to the output shaft 32.

The clasp-like member 40 is a flat metal plate, and each end thereof is through-engaged with the engaged portion 12 a 1 formed on the side portion 12 a of the inner box 12 so that the lid member 20 cannot be opened. It is to make.
Further, at both ends of the clasp-like member 40, as shown in FIG. 3, when the lid member 20 is made unopenable, an engagement recess 41 that engages with the inner edge of the engaged portion 12a1 in an uneven shape. Is recessed.
The engaging recess 41 is recessed so as to be fitted to the inner edge of the engaged portions 12a1 and 12d1 and the locking direction side edge of the clasp member 40 in a state where the lock mechanism 30 is locked. Yes.
According to the clasp-like member 40 having the above-described configuration, even if the clasp-like member 40 receives a force for deforming the clasp-like member 40, the clasp-like member 40 is engaged with two locations of the two side portions 12a and 12d and deformed. In order to counteract the force to be caused, it is possible to prevent the clasp-like member from being damaged due to deformation or detachment.
Furthermore, since the two side portions are engaged by the locking operation of one lock mechanism, the locking operation is easy.

Further, the clasp-like member 40 may be deformed or detached from the clasp-like member 40 when the reinforcing member 28 provided on the back surface side of the clasp member 20 forcibly opens the lid member 20. Is to prevent.
The reinforcing portion 28 is configured to support the clasp-like member 40 engaged with the engaged portions 12a1 and 12d1 from above and below.
Specifically, the reinforcing portion 28 is suspended from the back surface of the lid member 20, and a concave portion 28 a into which the clasp-like member 40 is fitted is provided on the lower end side thereof.
The concave portion 28a has such a width that when the clasp-like member 40 is opened and the clasp-like member 40 is fitted, the front and back surfaces thereof are in a non-contact state.
That is, if the reinforcing portion 28 is not provided, the clasp-like member 40 receives a bending force on the base end side according to the principle of the lever when the forcible opening operation is performed as described above. There is a possibility that the base end side is bent and deformed, or the base end side is detached from the lock mechanism 30.
However, according to the present embodiment, the reinforcing portion 28 supports the clasp-like member 40 so that the clasp-like member 40 has a forceful opening operation as described above. Such a force is substantially a shearing force.
For this reason, the clasp-like member 40 is not easily subjected to the bending force due to the principle of the lever and opposes the tearing force depending on the thickness thereof, so that it is not easily deformed or detached.
Therefore, the clasp-like member 40 can be prevented from being deformed, detached or sheared, and the clasp-like member 40 can be reinforced simply by fixing the reinforcing portion 28 to the lid member 20 by fixing means such as welding. Therefore, it is excellent in manufacturability, and it can be expected that the crime prevention is improved by attaching the reinforcing portion 28 to the existing operation body.

Next, a second embodiment will be described based on FIGS.
In addition, about the site | part which overlaps with the said 1st Embodiment, description of the said site | part is abbreviate | omitted by using the same code | symbol.

  The operating body B according to the second embodiment basically includes a lid member 20 that opens and closes like a double door, and one end of the clasp-like member 40 is connected to the projecting piece 21 of the lid member 20. The side portion 12d and the other end portion of the box 12 are configured to penetrate through the projecting piece portion 22 and the side portion 12a.

The lid member 20 is provided on the right side surface of the frame member 13 on the right side of the drawing by a shaft member 60a, and is directly below the upper lid 201 and is located on the left side of the inner box 12 in the drawing. It is comprised from the lower cover 202 supported by the shaft member 60b erected between the side parts 12c and 12b so that it may be left-opened on the drawing.
The upper lid 201 is formed by superposing and integrating a plurality of lid bodies using, for example, a metallic substantially rectangular plate member.
In the present embodiment, the two lids 201a and 201b are superposed in contact with each other, and the lock mechanism 30 is penetrated and fixed to the lids 201a and 201b to be integrated.
The lid 201a constitutes the surface layer of the upper lid 201, is formed in a lateral L-shape, and this side portion is used as the protruding piece portion 21.
The lid 201b constitutes the lower layer of the upper lid, is formed in a downward box shape with the side on the projecting piece 21 side open, and the three side parts excluding the open part are projecting piece parts 22, 23, respectively. , 24.

Then, on the lower side of the lid body 201a, the lid body 201b is superposed with its open side portion and the projecting piece portion 21 of the lid body 201a facing each other, thereby projecting the projecting piece portions 21, 22, 23, 24 in four directions. The upper lid 201 is configured.
In addition, the end on the long side of the lid 201a is an overhang 20a2 similar to that in the first embodiment, and the overhang 20a2 is supported by the receiving surface 122 when the lid 20 is closed.
With such a configuration, it is possible to make it difficult to insert a spatula-like tool such as a flat-blade screwdriver or a shaft-like tool as in the first embodiment.
Further, the lid 201b constitutes a hard layer that prevents the drill from penetrating, like the hard layers 13a and 13b and the fiber layer 13c of the frame member 13 described above.

The projecting piece 21 of the upper lid 201 has an engaged portion 21 a that faces the engaged portion 12 d 1 provided on the side 12 d of the inner box 12, and the projecting piece 22 has a side portion 12 a of the inner box 12. The engaged portions 22a that face the engaged portions 12a1 provided in the opening are respectively opened.
One end of the clasp member 40 is through-engaged with the engaged portion 21a and the engaged portion 12d1, and one end of the clasp-like member 40 is penetrating with the engaged portion 22a and the engaged portion 12a1. By combining, the upper lid 201 is made unopenable.
In addition, the engaged portion 21a and the engaged portion 22a have the same effect as the reinforcing portion 28 in the first embodiment, and when there is a forcible opening operation for the lid member 20 The clasp-like member 40 can be prevented from being deformed or detached.

The lower lid 202 has a handle 202a fixed to the surface on the right side in the drawing.
Further, the lower lid 202 is supported by a support member 12f provided on the side portion 12d of the inner box 12. With this configuration, similarly to the support member 12e in the first embodiment, the lid member 20 Can prevent damage caused by pushing in,
A hole 203 through which a lock plate mechanism 30 and a support plate 40a (described later) of the clasp member 40 provided in the lock mechanism 30 passes is opened at the center of the lower lid 202. The size is set such that the output shaft 32 that follows the opening movement of 201 and a support plate portion 40a described later do not contact each other.
Further, the lower lid 202 constitutes a hard layer that prevents penetration of the drill, like the hard layers 13a and 13b and the fiber layer 13c of the frame member 13 described above.

The clasp-like member 40 is formed by bending or pressing a metal material, so that the support plate portion 40a that is close to the side portion of the lock mechanism 30 and the back portion of the upper lid 201 are close to each other. The plywood portion 40b is formed integrally.
The clasp-like member 40 may be in contact with one or both of the side portion of the lock mechanism 30 and the back portion of the upper lid 201 as long as it can move in conjunction with the operation of the lock mechanism 30. .
The clasp-like member 40 is provided with an engagement recess 41 similar to that of the first embodiment on one end side and the other end side of the engagement plate portion 40b. Engages with the engaging portions 12a1 and 12d1.
Further, the clasp-like member 40 substantially covers the front of the stop switch 51, the open switch 52, and the close switch 53 by the base end side portion of the support plate portion 40a when the lid member 20 cannot be opened. It is arranged.
Further, the clasp-like member 40 has a blocking portion 42 that substantially clogs the gap c between the inner edges of the through holes 21a, 22a engaged by the clasp-like member 40 when the lid member 20 is made unopenable. It is integrally formed.

According to the clasp-like member 40 having the above-described configuration, the same effect as that of the first embodiment is obtained, and since it is a relatively wide shape, it is difficult to be deformed by a forceful opening operation, etc. There is an effect that the area that prevents the drill that attempts to penetrate the lid member 20 from the front side due to malicious intentions can be increased.
In addition, when the lid member 20 is opened at a substantially right angle (see FIG. 8), the ratio that the space in the housing 10 is occupied by the clasp-like member 40 is reduced, so that the operability of the operation switch unit 50 is improved. Is good.
That is, if the clasp-like member 40 has a shape along a substantially straight line without a bent portion, the distal end side of the clasp-like member 40 is located in a space near the operation switch portion 50, so that the operation switch portion 50 is operated. The operator's hand when touching the tip side of the clasp-like member 40 impairs the operability. According to the above configuration, the operator's hand when manipulating the tip side of the clasp-like member 40 The operability of the operation switch unit 50 is good.
As another means for improving the operability of the operation switch unit 50, the depth dimension of the lock mechanism 30 itself (in other words, the dimension protruding to the bottom side of the housing 10) is shortened, and the clasp-like member 40 is Although it may be formed in a substantially straight shape, the above-described configuration is effective because the depth dimension is relatively long due to the structure in which the key member 31 is complicatedly engaged inside in a normal lock.

  Furthermore, according to the structure of the clasp-like member 40, in a state where the lock mechanism 30 is locked (the state shown in FIG. 6), the drill is obliquely penetrated through the frame member 13 and the tip of the drill is further moved The drill which is about to be inserted into the housing 10 when a criminal act of passing through the gap c in the engaged portions 21a and 22a and operating the operation switch portion 50 with the tip of the drill is attempted. Can be blocked by the blocking portion 42.

Next, a third embodiment will be described with reference to FIG.
In addition, about the site | part which overlaps with the said 1st and 2nd embodiment, description of the said site | part is abbreviate | omitted by using the same code | symbol.

  The operating body C of the third embodiment basically includes a lid member 20 that opens and closes like a single door as in the first embodiment, and one end portion of the clasp-like member 40. Has a configuration in which the protruding piece 21 of the lid member 20 and the side portion 12d of the inner box 12 are engaged through the protruding piece portion 22 and the side portion 12a.

The lid member 20 includes an upper lid 203 that is supported by a shaft member 60 a installed on the inner box 12, and a lower lid 204 that secures a space directly below the upper lid 203 and is integrated with the upper lid 203. And the lower lid 204 are integrated by penetrating and fixing the lock mechanism 30.
The upper lid 203 and the lower lid 204 are, for example, flat plates using a metal substantially rectangular plate-like member, and the lower lid 204 penetrates the drill in the same manner as the hard layers 13a and 13b of the frame member 13 described above. It constitutes a hard layer to block.

The upper left end of the upper lid 203 in the drawing is supported by the receiving surface 122 of the inner box 12 in the closed state of the lid member 20, so that, like the first embodiment, a spatula such as a minus driver. It is possible to make it difficult to insert a tool or a shaft-shaped tool.
The upper right end of the lower lid 204 in the drawing is engaged with the engagement recess 120d provided in the side portion 12d of the inner box 12 in a closed state when the lid member 20 is closed. As in the above embodiment, it is difficult to insert a spatula tool such as a flat-blade screwdriver or a shaft-like tool.
The engagement concave portion 120d has an upper side surface 121d formed in parallel with the lower lid 204 in the drawing, and when the lid member 20 is closed, the lower lid 204 engages to form a spatula-shaped screwdriver or the like. The insertion path of a tool or a shaft-like tool becomes a zigzag, making it difficult to insert a spatula-like tool such as a flat-blade screwdriver or a shaft-like tool.
Furthermore, even when the shaft member 60a is broken and the upper lid 203 is plucked open from the shaft side, the engagement recess 120d can be separated from the upper lid 203 by hooking the lower lid 204 on the upper side surface 121d. The lower lid 204 integrated by the lock mechanism 30 is prevented from being opened simultaneously with the upper lid.
On the other hand, the lower side surface 122d facing the upper side surface 121d is formed as an inclined surface that is lowered toward the inner box 12, and the lower lid 204 does not contact the engagement recess 120d in the opening / closing operation of the lid member 20. I am doing so.
With this configuration, as in the first and second embodiments, it is difficult to insert a spatula-like tool such as a flat-blade screwdriver or a shaft-like tool, and the drill is prevented from penetrating. Prevent opening of the koji.

The operation bodies A to C having the above-described configuration show a particularly preferable aspect to which an example of the locking structure of the opening / closing device lid member according to the present invention is applied. However, the configuration of each part described above is replaced or combined with other configurations. Is possible.
Moreover, in the said embodiment, although the specific structure which applied the locking structure of the switchgear cover member which concerns on this invention to the opening part of the operation body for operation of a switchgear is shown, this invention, for example, It can also be applied to an inspection port provided in a storage case of a winding shaft in a switchgear, an inspection port arranged on a structure-side part (for example, a ceiling or a wall of a building) where the switchgear is installed, etc. Is possible.

Sectional drawing which looked at an example of the locking structure of the switchgear cover member concerning this invention from the downward side. Sectional drawing which looked at the same operation body from the side surface side. (III)-(III) sectional view taken on the line in FIG. The perspective view which looked at the superposition | polymerization state of the cover body which comprises a surface layer, and the cover body which comprises an intermediate | middle layer from the back side. It is the (V)-(V) sectional view taken on the line in FIG. Sectional drawing which looked at the other example of the locking structure of the switchgear lid member concerning this invention from the downward side. (VII)-(VII) sectional view taken on the line in FIG. The partially cutaway front view of an open state. Sectional drawing which looked at the other example of the locking structure of the switchgear lid member concerning this invention from the downward side.

Explanation of symbols

10: Case 10a: Opening 12a: Side 13a: Hard layer 13c: Fiber layer 20: Lid member 20a: Lid 20b: Lid 20c: Lid 20a2: Overhang 20a3: Overhang 20a4: Overhang 201: Upper lid 202: Lower lid 201a: Lid 201b: Lid 30: Lock mechanism 40: Clasp member 50: Operation switch part A, B, C: Operating body

Claims (8)

A housing having an opening in communication with the operation switch section for operating the closing body, a lid member capable of opening and closing the opening of the housing, is unlocked and locking operation from the outside is provided on the lid member a lock mechanism that, locking of the latching member and the switchgear lid member having a which in conjunction with the operation of the lock mechanism for disabling opening the cover member engages the closed state to the side of the said casing In structure
The housing includes an outer box having an opening on the front side, an inner box fastened in the outer box, and a frame member surrounding a peripheral side surface of the lid member,
The inner box has an opening on the front side and a receiving surface bent outward at the opening end thereof,
The lid member is polymerized contact form several sheets of the lid double in the thickness direction thereof, are integrated by the lock mechanism to penetrate fixed to the plurality of sheets of the lid,
Among the plurality of lids, the lid constituting the surface layer has an edge protruding in the outer direction from the lid constituting the intermediate layer,
The frame member is provided with an opening end on the inner side of the frame so as to be close to an edge of the lid constituting the surface layer when the lid member is closed,
The receiving surface receives the opening end of the frame member and receives an edge of a lid constituting the surface layer when the lid member is closed. Construction. The lid member is pivotally supported to be rotatable with respect to the inner box,
The lid that constitutes the intermediate layer has a contact surface that protrudes in the outer direction from the edge of the lid that constitutes the surface layer and is exposed to the front side, on the side of the pivot support portion.
The frame member has an overhanging portion that protrudes to the inside of the inner box beyond the receiving surface on the inner side of the frame, and the overhanging portion forms the surface layer when the lid member is closed. The locking structure of the opening / closing device lid member according to claim 1, wherein the locking member is brought close to an edge portion of the lid body to be brought into contact with the contact surface . The lid constituting the intermediate layer has a protruding piece portion facing into the housing at a side end portion thereof,
A support member for supporting the protruding piece portion is provided on a side portion in the inner box,
The locking structure of the opening / closing device lid member according to claim 1 , wherein the support member includes a support surface that comes into contact with a protruding end of the protruding piece portion . The support member is formed by connecting, to the support surface, a reinforcing plate positioned parallel to the projecting piece inside the projecting piece when the lid member is closed. The locking structure of the opening / closing device lid member according to 3 . The lid constituting the intermediate layer has a projecting piece that faces the inside of the housing at a side end portion thereof, and supports the lid member rotatably with respect to the inner box inside the projecting piece. 3. A locking structure for an opening / closing device cover member according to claim 1, wherein a shaft member for the opening / closing device is provided. 2. The frame member according to claim 1, wherein the frame member has a multilayer structure including one or both of a hard layer that prevents penetration of the drill and a fiber layer that can be entangled with the drill. Item 6. A locking structure for an opening / closing device lid member according to any one of Items 5 to 6. 2. The opening / closing device lid member according to claim 1, wherein the clasp member is provided so as to substantially cover the front of the entire operation switch portion when the lid member in the closed state cannot be opened. Locking structure. The clasp-like member is provided to rotate in conjunction with a locking operation of the lock mechanism and engage with a side portion in the casing,
On the back surface side of the lid member, a reinforcing portion for reinforcing the clasp-like member in a state of being engaged with a side portion in the housing is provided,
The opening / closing device lid according to any one of claims 1 to 7, wherein the reinforcing portion is fitted to a clasp-like member when rotated in conjunction with a locking operation of the lock mechanism. Locking structure of members.

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