JP6140502B2 - Switchgear - Google Patents

Description

  The present invention relates to an opening / closing device that opens and closes an opening / closing body suspended by a long suspension member such as a chain along a guide rail.

  Conventionally, in this kind of invention, as shown in Patent Document 1, an opening / closing body (10) comprising a plurality of panel-like opening / closing body constituting members (11) arranged in the vertical direction, and a lateral width of the opening / closing body (10) Guide rail (20) which surrounds the end in the direction and guides in the up-down direction, and is connected to the end in the width direction of each opening / closing member constituting member (11) in the guide rail (20) and extends in the up-down direction There is an opening / closing device that includes a chain member (13) and that opens and closes the opening / closing body (10) by moving the chain member (13) in the vertical direction.

By the way, according to the above prior art, even if the panel-shaped opening / closing member constituting member (11) is detached from the chain member (13), the detached opening / closing member constituting member (11) is not the lowest one. In this case, since the detached opening / closing member constituting member (11) contacts the lower opening / closing member constituting member (11), the detached opening / closing member constituting member (11) is prevented from falling to the floor surface. be able to.
However, when the lowermost opening / closing member constituting member (11) is detached from the chain member (13), since there is no member or the like received below the lower opening / closing member constituting member (11), the removed opening / closing member constituting member (11) reaches the floor surface. There is a risk of falling.

JP 2009-209645 A

  The present invention has been made in view of the above-described conventional circumstances, and a problem to be solved by the present invention is that an open / close body that is connected to a long suspension member such as a chain and opens and closes in the vertical direction is the long suspension. An object of the present invention is to provide an opening / closing device capable of preventing falling off the holding member.

One means for solving the above-described problems includes an opening / closing body that opens and closes in the vertical direction, a guide rail that surrounds an end portion in the horizontal width direction of the opening / closing body, and that guides in the vertical direction. A long suspension member extending in the vertical direction along the portion, and removably connected to the lower end side of the long suspension member in the guide rail, and also in the lateral width direction end of the opening / closing body and a connected locking mechanism, a switchgear in which the said elongate lifting member and the closing member by moving the locking mechanism in the vertical direction so as to open and close operation, wherein the locking mechanism The upper and lower link members are connected so as to be bent and rotated between the upper and lower sides, the upper end side of the upper link member is pivotally supported by the base member, and the base member is connected to the elongated suspension member. In addition, the middle part in the longitudinal direction of the lower link member is pivotally supported. The base member and the pivot member are pivotally supported by the opening and closing body, and are configured to attract each other by a tension spring having an upper end connected to the base member and a lower end connected to the pivot member. the locking mechanism, when detached from the previous SL elongate lifting member, the upper and lower said link member, the tension spread apart is rotated so as to be bent by the urging force of the spring to the opening and closing member thickness direction, wherein and engaging match Turkey on the inner surface of the guide rail, characterized.

  Since the present invention is configured as described above, an opening / closing body connected to a long suspension member such as a chain and opening / closing in a vertical direction is detached from the long suspension member and dropped. Can be prevented.

It is a front view which shows an example of the switchgear concerning this invention. It is an internal structure figure which shows the principal part of the switchgear. It is the internal structure which shows the principal part of the switchgear from the side, (a) shows a normal state, (b) is a guide rail in which the lowermost opening / closing member constituent member comes off from the long suspension member The state locked is shown. It is an internal structure which shows the principal part from the side about the other example of the switchgear concerning this invention, (a) shows a normal state, (b) is the lowermost switchgear structural member suspended long. The state which removed from the holding member and was latched by the guide rail is shown.

The first feature of the present embodiment is that the opening / closing body that opens and closes in the vertical direction, the guide rail that guides the opening / closing body in the horizontal direction surrounding the end of the opening / closing body, and the lateral width end of the opening / closing body A long suspension member extending in the vertical direction along the portion, and removably connected to the lower end side of the long suspension member in the guide rail, and also in the lateral width direction end of the opening / closing body An open / close device that opens and closes the open / close body by moving the elongated suspension member and the lock mechanism in the vertical direction. When the detachable member is detached from the elongated suspension member, it is configured to expand in the opening / closing body thickness direction and engage with the inner surface of the guide rail.
According to this configuration, when the locking mechanism is detached from the long suspension member, the locking mechanism spreads in the opening / closing body thickness direction and engages with the inner surface of the guide rail. Therefore, the opening / closing body connected to the locking mechanism can be prevented from dropping.

As a second feature, the locking mechanism is configured to expand in the opening / closing body thickness direction by the urging force of the urging member when the locking mechanism is detached from the long suspension member.
According to this structure, the latching mechanism at the time of dropping can be quickly expanded by the urging force of the urging member.

As a third feature, the locking mechanism connects a plurality of link members so as to be bent and turn between adjacent link members, and the upper ends of the plurality of link members are suspended in the elongated shape. The lower end side is connected to the member, and the lower end side is connected to the opening / closing body, and the upper end side and the lower end side are attracted by the biasing member, and detached from the long suspension member. At this time, the plurality of link members are rotated so as to be bent by the urging force of the urging member, spread in the opening / closing body thickness direction, and engaged with the inner surface of the guide rail.
According to this configuration, the structure of the locking mechanism that expands in the thickness direction of the opening / closing body when it is dropped can be a specific aspect with good operability and productivity.

As a fourth feature, the locking mechanism is configured by configuring the plurality of link members in a pantograph shape.
According to this configuration, the operability of the locking mechanism can be further improved.

  Next, a preferred specific example of the present embodiment having the above features will be described in detail with reference to the drawings.

  As shown in FIG. 1, the opening / closing device 1 includes an opening / closing body 10 that partitions and opens a space by sliding a plurality of opening / closing body constituting members 11 in the vertical direction, and an end of the opening / closing body 10 in the lateral width direction. The guide rail 20 extending in the up-and-down direction surrounding the frame, the elongate suspension member 30 extending in the up-and-down direction along the end of the opening / closing body 10, and the elongate suspension member 30 in the guide rail 20. A locking mechanism 40 that is detachably connected to the lower end side and is also connected to an end of the opening / closing body 10 in the lateral width direction, and a storage device 50 that stores and feeds the opening / closing body 10 on its upper side. The elongate suspension member 30 and the locking mechanism 40 are moved in the vertical direction by the mechanism in the storage device 50 to open and close the opening / closing body 10.

  The opening / closing body 10 includes a plurality of panel-shaped opening / closing body constituting members 11, and in the closed state, these opening / closing body constituting members 11 are arranged so as to be fitted in the vertical direction to partition the opening space, and in the opened state The plurality of opening / closing member constituting members 11 are stored side by side in the thickness direction in the storage device 50.

Each opening / closing member constituting member 11 is formed in a rectangular plate shape elongated in the left-right direction (see FIG. 1). A rod member 12 that is inserted through and connected to the long suspension member 30 is provided near the upper end of the lateral width direction end of each opening / closing member constituting member 11 (see FIG. 2).
Further, a guide roller 13 serving as a guide when the opening / closing member constituting member 11 is accommodated in the accommodation device 50 is provided near the lower end of the lateral width direction end of each opening / closing member constituting member 11.

The rod member 12 includes a shaft body 12a made of a rigid body such as a metal, and a roller 12b that is rotatably supported at the tip of the shaft body 12a (see FIG. 2).
The shaft body 12a is inserted into and supported by the long suspension member 30.
The roller 12b is provided so as to rotate on the distal end side of the shaft body 12a, and rolls on a rail (not shown) in the storage device 50 when the opening / closing member constituting member 11 is stored in the storage device 50.

The guide roller 13 is rotatably supported on the end portion in the lateral width direction of the opening / closing member constituting member 11 via a bracket or the like (see FIG. 2). When the opening / closing member constituting member 11 is housed in the housing device 50, the guide roller 13 comes into contact with an unillustrated guide for steadying in the housing device 50 so that the opening / closing member constituting member 11 moves in the thickness direction. Prevent shaking.
The structure inside the storage device 50 employs a well-known structure as disclosed in, for example, Japanese Patent Application Laid-Open No. 2009-209645.

  Further, the guide rails 20 are provided at both end portions in the lateral width direction of the opening / closing body 10, respectively, the lateral width direction end portions of the opening / closing body constituent member 11, the rod member 12, the guide roller 13, and the long suspension member 30. Are continuous in the vertical direction so as to surround in a substantially concave cross section (see FIGS. 2 and 3).

According to the illustrated example, the long suspension member 30 is a so-called roller chain used for power transmission or the like, and inserts and supports the rod members 12 at predetermined intervals in the length direction (FIG. 2). reference).
The long suspension member 30 is connected to all the opening / closing member constituting members 11 extending in the vertical direction via rod members 12, and the upper end side thereof is hung on a sprocket (not shown) in the storage device 50. . The long suspension member 30 is pulled into the storage device 50 or drawn downward from the storage device 50 by the rotation of the sprocket by a drive source (not shown) such as an electric motor.
A locking mechanism is provided via a connector 31 at a portion lower than the connection portion (rod member 12) with the lowermost end (lowermost) opening / closing member constituting member 11 of the long suspension member 30. 40 is connected.

The connection tool 31 is, for example, a metal wire, and connects the lower end portion of the elongated suspension member 30 and the upper end portion of the locking mechanism 40 (see FIGS. 2 and 3).
The connection tool 31 is configured so that the load received from the locking mechanism 40 side when the lowermost opening / closing member constituting member 11 is detached from the long suspension member 30 (specifically, the lowermost opening / closing member constituting member). 11 and the weight of the locking mechanism 40, etc., so that the thickness and the like are appropriately set.

  More specifically, the case where the lowermost opening / closing member constituting member 11 is dropped from the long suspension member 30 can be described more specifically. For example, the rod member 12 of the lowermost opening / closing member constituting member 11 is The long suspension member 30 is pulled out, the rod member 12 itself is damaged and detached, the bracket that supports the rod member 12 is damaged, and the lower end side of the long suspension member 30 is cut off. This means that the lowermost opening / closing member constituting member 11 is detached from the long suspension member 30 and falls.

And the base member 32 which pivotally supports the link members 41 and 41 'mentioned later is connected to the lower end of the connection tool 31.
The base member 32 has its upper end side suspended from the connection tool 31 and connected to the lower end side thereof the upper end of the urging member 43. A shaft member is inserted between these upper and lower ends. 41 and 41 'are rotatably supported.

The locking mechanism 40 is configured to expand in the opening / closing body thickness direction and engage with the inner surface of the guide rail 20 when the connection tool 31 is disconnected from the long suspension member 30 due to cutting or the like. Yes.
If it demonstrates in detail, this latching mechanism 40 will energize so that several link members 41, 41 ', 42, and 42' comprised by the pantograph shape and these link members may be expanded in the opening-and-closing body thickness direction. And an urging member 43.

The upper two link members 41, 41 ′ are pivotally supported via a shaft member with respect to the base member 32 at the lower end of the connector 31.
Each link member 41 (or 41 ') is formed in a long plate shape by a material having rigidity such as a metal material, and a link member 42 (or 42') is rotatably connected to the lower end side thereof. .

The lower link member 42 (or 42 ') is formed in a long plate shape longer than the link member 41 (or 41') by a material having rigidity such as a metal material, and has an acute-angled blade at the lowermost end thereof. It has parts 42a and 42a '.
The two link members 42, 42 ′ are pivotally supported at their midway portions in the longitudinal direction via a pivot member 44. Each link member 42 (or 42 ') has a lower portion than the upper support portion with respect to the support member 44, and is longer than the upper portion thereof. For this reason, as shown in FIG. 3B, when the link members 42 and 42 ′ are rotated, the two blade portions 42a and 42a ′ on the lower end side of the link members 42 and 42 ′ are replaced by the link member 42. , 42 ′ extends in the thickness direction of the opening / closing body more than other portions, and contacts the inner surface of the guide rail 20.

  The urging member 43 is a coiled tension spring having an upper end connected to the base member 32 and a lower end connected to the pivot member 44.

The pivot member 44 is a substantially shaft-like member extending in the opening / closing body width direction, and rotatably supports one link member 42 ′ at one end side in the axial direction and the other at the other end side in the axial direction. The link member 42 is rotatably supported.
The other end of the pivot member 44 is connected and fixed to the lowermost opening / closing member constituting member 11. As shown in FIG. 2, the portion between the link members 42 and 42 ′ of the pivot member 44 is suspended by the biasing member 43 in the opening / closing body width direction.

  And the base member 32 is long via the connection tool 31 in the state which narrowed between the blade parts 42a and 42a 'of the lower end side of the said locking mechanism 40 to the opening / closing body thickness direction (refer Fig.3 (a)). It is connected to the scale-like suspension member 30.

Next, the characteristic operation and effect of the switchgear 1 having the above-described configuration will be described in detail.
In a normal opening / closing operation, when a long suspension member 30 is pulled into the storage device 50 by rotation of a drive source (not shown) in the storage device 50 and a sprocket, a plurality of opening / closing body configurations connected to the storage device 50 are configured. The members 11 are also housed in the housing device 50 sequentially from the opening direction side, and the opening / closing body 10 is opened. Further, when the long suspension member 30 is drawn out from the storage device 50, the plurality of opening / closing member constituting members 11 stored in the storage device 50 are sequentially drawn downward from the one in the closing direction, and opened and closed. The body 10 is closed.
In such a normal open / closed state, as shown in FIG. 3A, the locking mechanism 40 is maintained in a state of not contacting the guide rail 20.

  During the opening / closing operation of the opening / closing body 10 as described above, or while the opening / closing body 10 is stopped in the middle open state, for example, as shown in FIG. When the body constituting member 11 is detached from the rod member 12 and the long suspension member 30, the weight of the opening / closing body constituting member 11 and the locking mechanism 40 is applied to the connecting tool 31, so that the connecting tool 31 is broken. The opening / closing member constituting member 11 and the locking mechanism 40 temporarily fall slightly, but the locking mechanism 40 spreads in the opening / closing body thickness direction by the biasing force of the biasing member 43, and the blade portion 42a on the lower end side thereof. 42a 'is made to bite into the inner surface of the guide rail 20. Accordingly, the opening and closing member constituting member 11 and the locking mechanism 40 on the lowermost end side are prevented from falling.

  In particular, when the opening / closing body 10 is in the open position halfway from the fully open position, there is a possibility that a passing object or the like exists on the lower side of the opening / closing body constituting member 11 on the lowermost end side of the opening / closing body 10. Even in this case, it is possible to prevent the opening / closing member constituting member 11 from coming into contact with the passing material or the like by preventing the opening / closing member constituting member 11 from dropping due to the dropping of the rod member 12 by the locking mechanism 40.

Next, another specific example shown in FIG. 4 will be described.
Since the switchgear 2 shown in FIG. 4 is a part of the switchgear 1 described above, the changed part will be mainly described, and a detailed description thereof will be omitted.

The opening / closing device 2 shown in FIG. 4 has a configuration in which the locking mechanism 40 is replaced with a locking mechanism 40 ′ with respect to the opening / closing device 1 described above.
The locking mechanism 40 ′ is configured such that one link member 41, 42 in the opening / closing body thickness direction is omitted from the locking mechanism 40.
When the locking mechanism 40 ′ expands in the opening / closing body thickness direction, the base end portion of the link member 42 ′ and the blade portion 42 a ′ on the distal end side thereof are brought into contact with the inner surface of the guide rail 20. Configured as follows.

Therefore, according to the opening / closing device 2 shown in FIG. 4, as shown in FIG. 4B, the lowermost opening / closing member constituting member 11 is detached from the rod member 12 and the long suspension member 30 for some reason. In such a case, the opening / closing member constituting member 11 and the locking mechanism 40 ′ are applied to the connecting tool 31 to break the connecting tool 31, and the opening / closing member constituting member 11 and the locking mechanism 40 ′ are temporarily dropped slightly. The locking mechanism 40 ′ spreads in the opening / closing body thickness direction by the urging force of the urging member 43 to bring the base end side of the link member 42 ′ into contact with the inner surface of the guide rail 20 and the blade portion 42 a ′ on the lower end side thereof. Bite into the inner surface of the guide rail 20.
Therefore, it is possible to prevent the opening / closing member constituting member 11 and the locking mechanism 40 ′ from dropping at the lowermost end.

  According to the above specific example, the locking mechanism 40 (and 40 ′) is constituted by a plurality of link members, but the locking mechanism 40 (or 40 ′) is detached from the long suspension member 30. In this case, it may be a structure that spreads in the opening / closing body thickness direction and engages with the inner surface of the guide rail 20. As another example, an elastic body (for example, a lump of rubber or the like) that narrows in the opening / closing body thickness direction when pulled up and down ) May be substituted. According to this other example, when the opening / closing member constituting member 11 is dropped, the elastic body is restored and spreads in the opening / closing member thickness direction so as to be fitted to the inner surface of the guide rail 20. Can be blocked.

  In addition, according to the above specific example, the connection tool 31 is broken by the weight of the opening / closing member constituting member 11 and the like when it is detached from the long suspension member 30. The engagement portion connected to the elongated suspension member 30 side and the engaged portion connected to the locking mechanism 40 side are fitted together, and the engagement state between the engagement portion and the engaged portion is Moreover, you may make it remove | deviate by the weight of the opening-closing body structural member 11 at the time of removing from the elongate suspension member 30. FIG.

  Further, according to the above specific example, the lower end side of the elongated suspension member 30 is connected to the lowermost opening / closing member constituting member 11 via the rod member 12. However, as another example, the rod member 12 is omitted. Further, it is possible to adopt a mode in which the locking mechanism 40 is suspended only by the lower end of the long suspension member 30. Also according to this aspect, when the locking mechanism 40 is detached from the long suspension member 30, the locking mechanism 40 spreads in the opening / closing body thickness direction and engages with the inner surface of the guide rail 20. It is possible to prevent the integral lowermost opening / closing member constituting member 11 from dropping.

Further, according to the above specific example, the opening / closing body 10 is constituted by the plurality of opening / closing body constituting members 11 arranged in the vertical direction, and each opening / closing body constituting member 11 is suspended by the long suspension member 30. However, as another example, the opening / closing body 10 is formed as an integral single member that is continuous in the vertical direction, and the locking mechanism 40 is connected to the end of the opening / closing body 10 in the lateral width direction, and the upper end of the locking mechanism 40 is It is also possible to adopt a mode in which is connected to the elongated suspension member 30 via the connector 31. Also in this embodiment, when the connection tool 31 is broken, the entire opening / closing body 10 falls slightly, but the locking mechanism 40 spreads and engages the inner surface of the guide rail 20, thereby preventing the opening / closing body 10 from falling. be able to.
In this embodiment, the opening / closing body 10 is an embodiment in which a sheet or net is extended in the opening / closing direction, or a combination of slats, panels, pipes, sheets, nets, etc. It is possible to adopt a mode in which they are continuously provided in the opening / closing direction.

  Further, according to the specific example, the urging member 43 is a coiled tension spring that pulls the upper end side and the lower end side of the locking mechanism 40. It is also possible to use a compression spring provided so as to widen between one end side and the other end side in the opening / closing body thickness direction of 40. Furthermore, as another example of the urging member 43, the tension spring or the compression spring can be configured by a leaf spring or an elastic body (for example, rubber). Furthermore, as another example of the urging member 43, it is also possible to have a structure in which a plurality of link members 41, 41 ′, 42, 42 ′ are rotated by a torsion spring provided in the shaft portion of the pivot member 44. It is.

  In addition, according to the above specific example, the long suspension member 30 is a chain-shaped member. However, the long suspension member 30 may be a long member having flexibility, As other examples, a metal wire, a rope, a flexible long belt-like member, or the like can be used.

  In addition, according to the above specific example, the locking mechanism 40 when spread is made to bite into the inner surface of the guide rail 20, but as another example, the inner surface of the guide rail 20 is covered at predetermined intervals over the vertical direction. It is possible to further improve the braking performance by providing a locking projection and locking the locking mechanism 40 when it is spread to the locked projection.

  In addition, according to the above specific example, the locking mechanism 40 is provided on the lowermost opening / closing member constituting member 11, but as other examples, the opening / closing member configurations other than the lowermost, such as second and third from the bottom, are used. It is also possible to adopt a mode in which the locking mechanism 40 is provided on the member 11.

  Further, according to the specific example, when the lowermost opening / closing member constituting member 11 is detached from the long suspension member 30, the connection tool 31 is cut by the weight of the opening / closing member constituting member 11 and the locking mechanism 40. More preferably, even when the opening / closing member constituting member 11 other than the bottom, such as the second or third from the bottom, is detached from the long suspension member 30, the impact or dropping at that time The strength (specifically, thickness, etc.) of the connection tool 31 is appropriately set so that the connection tool 31 is cut by the resulting load.

  Further, according to the above specific example, the locking mechanism 40 is locked to the guide rail 20 and does not fall, but as another example, the locking mechanism 40 is engaged with the guide rail 20 in a sliding contact state. In this other example, the dropped opening / closing member constituting member 11 can be gradually lowered by the friction with the guide rail 20, so that the drop impact can be reduced.

DESCRIPTION OF SYMBOLS 1, 2: Opening / closing device 10: Opening / closing body 11: Opening / closing body structural member 20: Guide rail 30: Elongate suspension member 31: Connector 40, 40 ': Locking mechanism 41, 41', 42, 42 ': Link member

Claims (4)

An open / close body that opens and closes in the vertical direction, a guide rail that surrounds the lateral width end of the open / close body and guides it in the vertical direction, and a long shape that extends in the vertical direction along the lateral width end of the open / close body A suspension member, and a locking mechanism that is detachably connected to the lower end side of the elongated suspension member in the guide rail and is also connected to an end portion in the lateral width direction of the opening / closing body, An opening / closing device configured to open and close the opening / closing body by moving a long suspension member and the locking mechanism in a vertical direction,
The locking mechanism connects the upper and lower link members so as to bend and rotate between the upper and lower sides, pivots the upper end side of the upper link member to the base member, and suspends the base member from the elongated shape. The lower half of the link member in the longitudinal direction is pivotally supported on the opening / closing body by a pivot member, and the base member and the pivot member are connected to the base member at the upper end. And the lower end is configured to be attracted by a tension spring connected to the pivot member,
The locking mechanism, when detached from the previous SL elongate lifting member, the upper and lower said link member, the tension spread apart is rotated so as to be bent by the urging force of the spring to the opening and closing member thickness direction, switchgear characterized the engagement match Turkey on the inner surface of the guide rail. The upper and lower link members are provided in two sets symmetrically in the opening / closing body thickness direction,
2. The switchgear according to claim 1, wherein the two sets of link members are configured in a pantograph shape in which the base member and the pivot member are common fulcrums . The upper and lower link members are provided as a single set,
The lower link member engages the lower end and the upper end with the opposing inner surfaces of the guide rail, respectively, when the lower link member is bent with respect to the upper link member. The switchgear according to claim 1 . A connection tool is provided between the base member and the lower end side of the elongated suspension member,
The connection tool is a wire whose thickness is set so as to be broken by the weight of the opening / closing body constituting member constituting the lower end side of the opening / closing body and the locking mechanism. one term switchgear as claimed.

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