JP4331624B2 - Locking structure of lid member for 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) There is a possibility that the lid (52) may be opened due to deformation or slipping out or the hinge pin (54) slipping out of the pivotal support location.
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 problem is that the lid member is intentionally opened and the opening / closing body is illegally operated by forcibly opening 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 clasp member is engaged with and disengaged from a plurality of positions on the side portion in the opening, and the lid member is locked and unlocked.

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 in the opening / closing device itself, an aspect in which the locking structure is disposed in a part on the structure side where the opening / closing device is installed, and the locking structure is provided in 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 serving as the opening, and the like can be given.
In addition, as a specific example of an aspect in which the locking structure is disposed in a part on the structure side where the switchgear is installed, a device for operating the switcher on the ceiling or wall of the building where the switchgear is installed When there is an inspection port that communicates, a configuration in which the 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.

  In addition, 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 portion 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 is externally provided. 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 part 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 front 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.

Further, the plurality of side portions in the opening referred to in the above means include, for example, a plurality of two or more portions on the same side portion in the case of a substantially rectangular opening in front view, It is two or more places of the side part and the side part facing or intersecting with the side part, and further three or four parts or more of the facing part and intersecting side part.
Further, for example, when the opening has a substantially circular shape when viewed from the front, it is preferable that there are two or more of an arbitrary position on the side and a position facing or intersecting. It is preferable that there are four or more locations.

Further, the engagement with the side portion in the opening referred to in the above means is, for example, that the clasp-like member is engaged or engaged with an opening, a recess or a projection provided on the side in the opening. The engagement form engaged in superposition | polymerization can be illustrated.
The engagement / disengagement mode with respect to the side part in the opening of the clasp-like member is a mode in which the clasp-like member is engaged / disengaged by forward / reverse rotation movement or a front / rear linear movement by operation of the lock mechanism. Both are included.
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.

Further, the second means is characterized in that the engagement and disengagement of the clasp-like member is performed at least at two locations in the facing direction.

  The direction facing at least is the direction facing directly, or the direction facing in the state of being vertically or horizontally displaced.

Further, in the third means , the lid member is supported by the shaft member so as to rotate in the shape of a hinged door, and the clasp-like member is at least a portion including the side portion on the shaft member side. It is characterized by engaging and disengaging.

The fourth means is characterized in that the clasp-like member is provided so as to engage and disengage in conjunction with the operation of one lock mechanism.

Further, in the fifth means , all or part of the clasp-like member is engaged / disengaged by a linear motion, and the linear motion of the clasp-like member is transmitted by the operation of the lock mechanism. It is performed through a mechanism for converting the motion into a linear motion.

The configuration in which the clasp-like member is linearly moved is effective when the rotational movement space of the clasp-like member cannot be secured in the opening.
For example, in the case where the upper and lower openings are engaged and disengaged at four locations on the upper, lower, left and right sides by rotational movement, the unlocked state of the clasp-like member engaged in the longitudinal direction Since it is difficult to secure a space in the (position in the left-right direction), it is preferable to linearly move the clasp-like member engaged in the longitudinal direction.

Further, in the sixth means , the clasp-like member is provided with a latching portion that latches on the side portion only in the engaged state with the side portion, and the latching portion locks the clasp-like member and When a force other than unlocking is applied, the clasp-like member is hooked on the engaged portion, and the detachment of the clasp-like member from the engaged portion is suppressed. .

  The latching mode with respect to the side portion of the latching portion is such that when a force other than locking and unlocking acts on the clasp-like member, the clasp member is latched on the side, and the side of the clasp-like member is This includes all aspects in which disengagement from the portion can be suppressed and engagement / disengagement with respect to the side portion of the clasp-like member is smoothly performed.

The seventh 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 composed of 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 eighth means , a frame member is provided so as to surround a peripheral side surface of the door member,
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.

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.

In the ninth 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 door member is provided so as to substantially cover the front side of the opening switch when the door member is made unopenable by the clasp-like member.

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 similar action of the eighth means to be described later There is an effect.
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 door member, and the frame member includes 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.

Further, the ninth means, wherein even independent means not having the configuration described as a feature of the first to eighth any one means, operational effects substantially the same operational effects of the ninth 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 door 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 operated from the outside, the clasp-like member is engaged with at least two side portions in the opening in accordance with the operation of the lock mechanism. Together, the lid member is locked and cannot be opened.
Therefore, even if the clasp-like member is subjected to a force that deforms the clasp-like member by forcibly opening the lid member, the clasp-like member engages and deforms at two or more locations on the side of the opening. Therefore, it is possible to prevent the clasp-like member from being damaged due to deformation or detachment.
In addition, even if the clasp-like member is disengaged at one place, the lid member cannot be opened by the engagement at the other side portion. On the other hand, it can be expected that the time required for opening the paper will be extended to give a spiritual impatience, and the continuation of the opening operation will be abandoned.
In other words, it is possible to reduce the willingness to commit the crime by delaying the crime time, and consequently to prevent the lid member from being intentionally opened and the opening / closing body from being illegally operated.

Furthermore, according to the second means , the clasp-like member is engaged / disengaged, for example, on the left / right or / and the top / bottom, which is effective in improving the strength against tearing.
That is, it is effective in making it difficult to perform the opening operation of the lid member and extending the opening time of the lid member.

Further, according to the third means , since the clasp member is engaged at a plurality of locations including the shaft member side, even if the shaft member is destroyed, the lid member cannot be opened by the clasp member. Can be held in.
That is, it is effective in making it difficult to perform the opening operation of the lid member and extending the opening time of the lid member.

Furthermore, according to the fourth means , since the clasp member engages and disengages in conjunction with the operation of one lock mechanism, it is effective for improving the ease of operation when locking and unlocking the lid member. It is.

Furthermore, according to the fifth means , since the rotational motion transmitted by the operation of the lock mechanism is converted into the linear motion of the clasp member, the opening having a shape that cannot secure the rotational motion space of the clasp member. This means can also be implemented in the section .

Further, according to the sixth means , when a force other than locking and unlocking acts on the clasp-like member, the latching portion latches the clasp-like member on the engaged portion, and the clasp Since the disengagement of the shaped member from the engaged portion is suppressed, it is further effective in improving the strength against the tearing.
That is, it is effective in making it difficult to perform the opening operation of the lid member and extending the opening time of the lid member.

Furthermore, according to the seventh 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 eighth means , it is possible to prevent a drill or the like from being penetrated obliquely from the outside to the frame member.
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.
In addition, 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.
Therefore, it is possible to delay the criminal time and reduce the willingness of the crime against a malicious third party who tries to operate the operation switch portion with the tip of the drill by drilling the frame member obliquely. 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.

Further, according to the ninth means , if a criminal act of opening the open / close body by operating the opening switch with the tip of the drill or the like through the lid member is opened, 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 cover 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 center, tunnel, vehicle loading platform, etc. An operation body used in a so-called shutter device that partitions and opens the space inside the housing by opening and closing the part will be described as an example applied to an operation body for controlling the opening and 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 inner box 12 is bent at the entire circumference of the opening end 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 from the gap.
In addition, the frame member 13 has an open end portion 131 that protrudes beyond the fixed surface 121 on the shaft member 60 side, which will be described later, to the inside of the inner box 12, and is described later in the closed state on the back surface of the protruding portion 135. The exposed fixing surface 121 constitutes a receiving surface of the lid member 20 described later. Hereinafter, the exposed fixing surface 121 is defined as a receiving surface. Explanation will be given, and reference numeral 122 is attached to the receiving surface.

Further, the hard layers 13a and 13b of the frame member 13 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, and according to the illustrated example, The layer 13 a is disposed on the inner surface of the front side portion of the frame member 13 having a substantially inverted L-shaped cross section, 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 20b is formed by integrally forming projecting pieces 21, 22, 23, 24 facing the inside of the housing 10 at the side end by bending the U-shaped cross section substantially downward. The 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, 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 The contact surface 20b1 supported in contact with the back surface of the overhanging portion 135 is shifted to a position where it can be secured.
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 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.
In addition, since the insertion path of the tool or the like from the gap in the thickness direction is zigzag-shaped, it is possible to make the insertion operation difficult, and it is also effective for suppressing intrusion of condensed water, dust, dust, etc. is there.
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, A spatula-like tool such as a flat-blade screwdriver or a shaft-like tool is inserted to prevent the lid member 20 from being forcibly opened.

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. Thus, the lid member 20 is prevented from being damaged by being pushed.
Furthermore, according to the support member 12e, when the lid member 20 is closed, the protruding pieces 22, 23, 24 are fitted between the reinforcing plate 12e2 and the side portions 12a, 12b, 12c of the inner box 12. Thus, a zigzag configuration of an insertion path of a tool or the like from the gap generated between the projecting piece portions 22, 23, 24, the side portions 12a, 12b, 12c, the support surface 12e1, and the reinforcing plate 12e2. However, it is possible to further complicate the insertion of a tool or the like, and to more effectively suppress dew sight, intrusion of dust, dust, and the like.

  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, it engages with the inner edges of the engaged portions 12a1 and 12d1 in an uneven manner. Concave portions 41 and 41 are provided.
Each engagement recess 41 is recessed so as to be fitted to the inner edge of the engaged portions 12a1 and 12d1 and in the locking direction side of the clasp member 40 in a state where the lock mechanism 30 is locked. ing.
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 40 from being damaged due to deformation or detachment.
Furthermore, the locking operation of one lock mechanism 30 facilitates the locking operation because it is engaged with the two side portions 12a and 12d.

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.

  In addition, although the said aspect shows an example which provided the recessed part 28a in the reinforcement part 28, and prevented the deformation | transformation of the clasp-like member 40 effectively, the reinforcement part 28 is shown in the clasp-like member 40 in the housing 10. It is good also as an aspect formed in the cross-sectional substantially L shape adjacent from the back side of.

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, two lid bodies 201a and 201c are superposed in contact with each other, and the lock mechanism 30 is fixed to the lid bodies 201a and 201b by penetration.
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.
In addition, the lid 201b constitutes a hard layer that prevents the drill from penetrating, like the hard layers 13a and 13b 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 non-engaged portions 12a1 provided in are respectively opened.
One end of the clasp member 40 is engaged with the engaged portion 21a and the engaged portion 12d1, and the other portion of the clasp member 40 is engaged with the engaged portion 22a and the engaged portion 12a1. When the end portion is through-engaged, the upper lid 201 cannot be opened.
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 is 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 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. It is integrally molded from the plywood portion 40b.
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. .
In the clasp-like member 40, engagement concave portions 41, 42 similar to those in the first embodiment are formed on one end side and the other end side of the engagement plate portion 40b. 42 engages with the engaged portions 12a1 and 12d1, respectively.
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 closes the gap 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 the state where the lock mechanism 30 is locked (the state shown in FIG. 6 and FIG. 7), the drill is penetrated obliquely through the frame member 13 in a malicious manner. When the criminal act of passing the tip of the tool through the gap c in the engaged portions 21a and 22a and operating the operation switch unit 50 with the tip of the drill is attempted, the tip is inserted into the housing 10. The tip of the drill can be blocked by the closing 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, 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 is configured such that the clasp-like member 40 engages with all the side portions 12a, 12b, 12c, and 12d of the inner box 12.
In the operating body C, the clasp-like member 40 in the engaged state has a substantially cross shape, and each end portion of the clasp-like member 40 is engaged / disengaged for each of the side portions 12a, 12b, 12c, 12d. Portions 12a1, 12b1, 12c1, and 12d1 are provided.

The clasp-like member 40 includes a rotation engagement portion 401 that rotates in conjunction with locking and unlocking operations of a lock mechanism (not shown), and a rotation engagement portion that is connected to the rotation engagement portion 401. It is composed of two linear motion engaging portions 402 and 403 that linearly move with the rotational movement of the joint portion 401.
As with the clasp member of the first and second embodiments, the rotational engagement portion 401 has one end engaged / disengaged with respect to the engaged portion 12a1 and the other end engaged. The joint portion 12d1 is engaged and disengaged.

The linear motion engaging portions 402 and 403 are rotationally engaged via link plates 404 and 405 that constitute a mechanism for converting the rotational motion of the rotational engaging portion 401 into the linear motion of the linear motion engaging portions 402 and 403. The unit 401 is connected.
Further, the linear motion engaging portions 402 and 403 are guided in linear motion by guide plates 406 and 407 provided on a lid member (not shown).

The link plates 404 and 405 are pivotally supported by connecting plates 401a and 401b integrally connected in a direction orthogonal to the engaging direction in the engaged state of the rotation engaging portion 401, and the other end portion of the link plates 404 and 405. It is pivotally supported by the linear engaging portions 402 and 403.
The link plates 404 and 405 are connected to the connecting plates 401a and 401b and linearly engaged by the mutual rotation of the connecting plates 401a and 401b around the shaft support portions P and P accompanying the rotational movement of the rotating engaging portion 401. The linear motion engaging portions 402 and 403 are inclined with respect to the portions 402 and 403 as shown in FIG. 9A and aligned in a straight line as shown in FIG. 9B. Make a linear motion.

According to the clasp-like member 40 having the above-described configuration, in the unlocked state shown by the solid line in FIG. 9A, each end of the rotation engaging portion 401 is disengaged from the engaged portions 12a1 and 12d1. At the same time, it faces the engaged portions 12b1 and 12c1 and the linear motion engaging portions 402 and 403 are disengaged from the engaged portions 12b1 and 12c1.
Further, in the locking operation state indicated by the phantom line in FIG. 9A, the linear motion engagement portions 402 and 403 are linked to the link plates 404 and 405 as the rotational engagement portion 401 rotates in the engagement direction. Therefore, it goes straight toward the engaged portions 12b1 and 12c1.
In the locking completion state shown in FIG. 9B, the end of the rotation engaging portion 401 is engaged with the engaged portions 12a1 and 12d1, and the linear motion engaging portions 402 and 403 are engaged with the engaged portion 12b1. , 12c1 is engaged.
That is, since the clasp member 40 is engaged with all the side portions 12a, 12b, 12c, and 12d of the inner box 12 by operating one lock mechanism, the clasp member is deformed, detached, or damaged. This can be prevented more effectively.
Further, the engagement / disengagement of the inner box 12 with respect to the longitudinal direction can be converted from the rotational motion transmitted by the operation of the lock mechanism into the linear motion of the linear motion engaging portions 402, 402 in the clasp-like member 40. .

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 surface direction. 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. The principal part sectional drawing which looked at the other example of the locking structure of the switchgear lid member concerning the present invention from the back direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Housing | casing 10a: Opening part 12a: Side part 12b: Side part 12c: Side part 12d: Side part 12a1: Engagement part 12b1: Engagement part 12c1: Engagement part 12d1: Engagement part 13a: Hard layer 13c: Fiber layer 20: Lid member 21: Projection piece part 22: Projection piece part 23: Projection piece part 24: Projection piece part 30: Lock mechanism 40: Clasp-like member 41: Closure part 50: Operation switch part A , B, C: Operating body

Claims (7)

A housing having an inner box having an opening in communication with the operation switch section for operating the opening-and openable lid member front Symbol opening, unlocking and locking from the outside provided in the lid member An opening / closing device comprising: a lock mechanism to be operated; and a clasp-like member that engages with a side portion of the inner box by a rotational movement in conjunction with the operation of the lock mechanism so that the closed lid member cannot be opened. In the locking structure of the lid member,
Said buckle member by disengaging a plurality of positions of the sides of said box, and said cover member so that locking and unlocking,
A reinforcing portion for reinforcing the clasp-like member in a state of being engaged with the side portion of the inner box is provided on the back surface side of the lid member,
The reinforcing portion is close to the bottom surface side of the inner box in the clasp-like member with respect to the clasp-like member engaged with the side portion of the inner box in conjunction with the locking operation of the lock mechanism. A locking structure of the opening / closing device lid member. The said reinforcement part has a recessed part fitted to a clasp shape member engaged with the side part of the said inner box in response to the locking operation of the said lock mechanism. Locking structure of the opening / closing device lid member described. The reinforcing portion is a portion close to the bottom side of the inner box in the clasp-like member with respect to the clasp-like member engaged with the side portion of the inner box in conjunction with the locking operation of the lock mechanism. The locking structure for the opening / closing device lid member according to claim 1, wherein the locking structure is formed in a substantially L-shaped cross section. On the edge side of the lid member is provided a projecting piece that projects into the housing,
The locking part of the opening / closing device lid member according to claim 1, wherein the reinforcing part is provided with a substantially rectangular hole-like engaged part that penetrates and engages the clasp member on the protruding piece part. Construction. The lid member is supported by a shaft member so as to rotate in the form of a hinged door,
The engagement / disengagement of the clasp member is performed at least at two locations in the facing direction, and one engagement / disengagement thereof is performed at a location including the side portion on the shaft member side. Item 5. A locking structure for an opening / closing device lid member according to any one of Items 4 to 6. A frame member is provided so as to surround a peripheral side surface of the door member,
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.   5. The switchgear 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 of the lid member.

Images