JP5296629B2 - Closure prevention device for switchgear - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a braking function of sudden closing operation of an opening/closing body and to improve storage performance with respect to an opening/closing device. <P>SOLUTION: The closing prevention device for the opening/closing device includes a linear member 41 which can be wound, a winding device 42 which takes up the linear member 41 by the energizing force of an energizing member and delivers the linear member 41 by the force larger than the energizing force, and a rotation stop mechanism which stops the delivering rotation of the winding device 42 under abnormal conditions where the delivering rotation of the winding device 42 reaches the speed and/or acceleration which is greater than or equal to a specified value. The tip side of the linear member 41 and one side of the winding device 42 are fixed to the panel-like member 110 of the opening/closing body 10, and the other side of the winding device 42 is fixed to the immovable part on the storage space A2 side. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention is provided in an opening / closing device including an overhead door in which an opening / closing body is slid in an opening direction without being wound, and the opening / closing body is stored in a storage space on the opening direction side. The present invention relates to a closing prevention device for an opening / closing device that prevents operation.

  The invention related to the closing prevention device for an opening / closing device according to the present invention includes, for example, a reel section (see FIG. 1) for cutting the traction member (33) and winding the traction member (33). When the tension of the traction member (33) decreases due to the trouble of the traction mechanism (30) side, such as idle rotation of the traction mechanism (30), such as idle rotation of the traction mechanism (30). The movable engagement member (42) provided on the body (10) is rotated by the urging force of the urging means (43), and in the opening / closing direction with respect to the vertical rail portion (21) of the guide rail (20). There is a closing prevention device for an opening / closing device that stops the closing operation of the opening / closing body (10) by engaging with any one of a plurality of hooked portions (6) provided along the same.

  However, in the closure prevention device for a switchgear disclosed in Document 1, a plurality of latching portions (6) are provided on the vertical rail (21) with limited space, or the latching portions are provided around the vertical rail (21). It is difficult to secure a storage space for storing (6) and the movable engagement member (42) so as not to be exposed from the opening / closing device.

Japanese Patent Laying-Open No. 2007-231698 (see [0039] and [FIG. 4])

  An object of the present invention is to deal with such a problem. That is, it is an object of the present invention to improve the stowability of the opening / closing device while ensuring the braking function of the sudden closing operation of the opening / closing body.

  In order to achieve the above object, a closing prevention device for an opening / closing device according to the present invention comprises at least the following configuration.

  A linear member that is provided in an opening / closing device that is slid without retracting the opening / closing body and is stored in a storage space on the opening direction side and that can be wound in the closing prevention device for the opening / closing device that prevents a sudden closing operation of the opening / closing body. And a winding device that winds up the linear member by the biasing force of the biasing member, and feeds the linear member by a force larger than the biasing force, and a speed at which a feeding rotation of the winding device exceeds a specified value and / or Or a rotation stop mechanism that stops the rotation of the winding device in the case of an abnormality that has accelerated, and one of the leading end side of the linear member and the winding device is an end in the opening direction of the opening / closing body. It is fixed to the part side, and the other is fixed to the immovable part on the storage space side.

  In the closing prevention device for an opening / closing device having the above-described configuration, the rotation stopping mechanism stops the feeding of the linear member in the sudden closing operation of the opening / closing body in which the feeding device rotates at a speed and / or acceleration higher than a specified value. Thus, the sudden closing operation of the opening / closing body can be stopped. In addition, since the winding device and the linear member are disposed between the opening end of the opening / closing body and the stationary part on the storage space side, the winding device and the linear member are closed in the closing operation of the opening / closing body. Can be positioned in the storage space, for example, it is possible to prevent interference of the linear member with respect to an object or a passerby on the space part side partitioned by the opening / closing body.

  The opening / closing device of the present invention includes both the same direction as the opening / closing body opening / closing direction and the direction intersecting with the opening / closing direction as the storage direction of the opening / closing body.

  As a preferable configuration of the closing prevention device for an opening / closing device of the present invention, which is provided in the opening / closing device in which the storage direction of the opening / closing body is a direction intersecting the opening / closing body opening / closing direction, for example, the opening / closing device opens / closes the opening / closing body. The linear member is extended in a direction intersecting with the opening / closing body opening / closing direction of the opening / closing body, and the linear member extends from the fully open state to the fully closed state. A support member that maintains a feeding direction; the support member supports the leading end side of the linear member or the winding device, and is slidable in the intersecting direction with respect to a stationary part of the storage space, and can be opened and closed It is supported so as to be rotatable about an axial center extending in the body width direction, and is rotatable about an axial center extending in the opening / closing body width direction with respect to the opening end of the opening / closing body. Configuration that is lifting the like.

  In the closing prevention device for an opening / closing device having the above-described configuration, the linear member is extended in an intersecting direction with respect to the opening / closing body opening / closing direction with respect to the opening / closing device in which the storage direction of the opening / closing body intersects the opening / closing direction. Therefore, the opening / closing device closing prevention device can be installed without providing a space for the opening / closing device closing prevention device in the opening / closing body opening direction with respect to the storage space. Further, since the feeding direction of the linear member is maintained, the winding device and the linear member can be positioned in the storage space in the closing operation of the opening / closing body.

  Further, the support member is, for example, a more effective configuration in terms of space saving of the storage space, and a configuration in which the closing prevention device for the switching device can be applied to an existing switching device. It is preferable.

  As a preferred configuration of the support member, for example, the first and second arm members located on one end side of the support member and the second arm member located on the other end side of the support member may be the opening / closing body. The structure which connected so that bending | flexion to the said storage direction was possible at the time of fully opening was mentioned.

  In the closing prevention device for an opening / closing device having the above configuration, the support member bends in the storage direction when the opening / closing body is fully opened, so that the total length is shortened, so that the space in the storage direction in the storage space is not expanded. The support member can be disposed. Therefore, it is more effective in saving the storage space and can be applied to an existing switchgear.

  Since the number of constituent members of the closing prevention device for the opening / closing device is reduced, it is preferable that the stationary portion that supports the supporting member is a guide rail that guides the opening / closing operation of the opening / closing body.

  According to the said structure, since the said guide rail serves as the member which supports the said supporting member, the member which comprises the closing prevention apparatus for switchgears can be decreased.

  As a configuration of the support member in the case where the opening / closing body is housed in the same direction as the opening / closing body opening / closing direction, for example, the feeding direction of the linear member is the crossing direction with respect to the opening / closing body opening / closing direction. A support member is provided that maintains the feeding direction of the linear member over the closed state, and the support member is supported by an immovable portion on the opening / closing body closing direction side so as to be rotatable about an axial center extending in the opening / closing body width direction. There is a configuration in which the rotating body supports the linear member so as to change the direction of the linear member from the intersecting direction to the opening / closing body opening / closing direction.

  The closing prevention device for an opening / closing device having the above configuration can be applied to an opening / closing device in which the opening / closing body is housed in the same direction as the opening / closing body opening / closing direction.

  The “opening / closing device that slides without opening and closing the opening / closing body and stores it in the storage space on the open direction” as used in the present invention means that the opening / closing body is slid without winding and is in a closed state. For example, an overhead door or a sliding door that slides linearly in one direction can be used.

  The “rapid closing operation of the opening / closing body” in the present invention means a closing operation other than the normal closing operation of the opening / closing body by a traction mechanism for opening / closing the opening / closing body. For example, a closing operation by the weight of the opening / closing body itself that may be caused by a failure of a traction device that opens / closes the opening / closing body by power. In addition to assisting the opening operation of the opening / closing body when the opening / closing body is manually opened / closed, the opening / closing body, which attempts to fall naturally by the weight of the opening / closing body during the closing operation, provides resistance in the dropping direction. This is a closing operation due to the weight of the opening / closing body itself that may be caused by a failure of the assist device that prevents the opening / closing body from falling naturally.

  The “opening / closing body” in the present invention may be of any form that operates so as to slid and partition or open the space without being wound up. For example, a plurality of slats, panels, or pipes can be opened and closed. Examples include a form formed continuously in a direction, a form composed of a single panel, and a form obtained by appropriately combining slats, panels, and pipes.

  The “flexible linear member” in the present invention is a flexible linear member that can be wound around a winding device, and is cut by a tensile force when the sudden closing operation of the opening / closing body stops. Any linear member that does not have any strength may be used. For example, a wire, a rope, a belt-like rope, a chain, etc. are mentioned.

  The “rotation stop mechanism” as used in the present invention is any mechanism that stops rotation of the take-up device in the feed-out direction when the rotation of the take-up device reaches a specified speed or acceleration. For example, an emergency lock type retractor for an automobile seat belt can be mentioned.

  The “specified value” referred to in the present invention is a value that exceeds the operation rotation speed and / or operation rotation acceleration of the winding device that accompanies the normal closing operation of the opening / closing body, and preferably the supply rotation speed and / or Alternatively, the value approximates the value of the steering rotation acceleration.

  The “opening / closing body opening direction” in the present invention is a direction in which the opening / closing body slides to open a space. The “opening / closing body closing direction” is a direction in which the opening / closing body slides to close the space. The “crossing direction with respect to the opening / closing body opening / closing direction” is the direction of the thickness of the opening / closing body in the closed state. In addition, the “opening / closing body width direction” is a direction orthogonal to the opening / closing direction of the opening / closing body and is not the direction of the thickness of the opening / closing body in the closed state. The direction of the thickness of the opening / closing body in the closed state is the “opening / closing body thickness direction”.

  According to the present invention, it is possible to expect an improvement in stowability with respect to an opening / closing device while ensuring a braking function for a sudden closing operation of the opening / closing body.

The whole block diagram of the switchgear which applied the closure prevention device for switchgears concerning the present invention. It is a whole block diagram of the closing prevention device for switchgear, and shows a closed state. (A) is a side view which shows the supporting member in the fully-closed state of an opening-closing body, (b) is a (b) arrow directional view of (a). The side view which shows the support member in the fully open state of an opening-closing body. The side view which shows operation | movement of the support member in the state immediately after the opening operation | movement of an opening-closing body, or the state just before completion | finish of closing operation. The side view which shows operation | movement of the support member in the winding-out state of the wire member by the opening operation | movement of an opening-closing body, or the drawing-out state of the wire member by closing operation | movement. The side view which shows operation | movement of the support member in the state immediately before completion | finish of opening operation | movement of an opening-closing body, or the state immediately after the start of closing operation | movement. The side view which shows operation | movement of the expansion | extension halfway state of the support member in the state in the middle of bending | flexion of the support member in the state just before completion | finish of opening | closing operation | movement of an opening-closing body, or closing operation | movement. The whole schematic block diagram of the switchgear which applied the closure prevention apparatus for switchgear of 2nd Embodiment concerning this invention. The whole schematic block diagram of the switchgear which applied the closure prevention apparatus for switchgears of 3rd Embodiment concerning this invention.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the closure prevention apparatus for switchgears (henceforth "a closure prevention apparatus") concerning this invention is demonstrated based on drawing. 1st Embodiment demonstrates the form which applied the closure prevention apparatus to the overhead door which is an example of an opening / closing apparatus. Hereinafter, the opening / closing device will be described as an overhead door.

  FIG. 1 is an overall configuration diagram showing a fully closed state of the overhead door 1 of the present embodiment.

  The overhead door 1 includes an opening / closing body 10 that opens and closes while sliding, guide rails 20 and 20 that guide the opening / closing body 10 in the opening / closing direction, and the opening / closing body 10 is pulled in the opening direction by flexible pulling members 31 and 31. And a closing prevention device 40, 40 for preventing a sudden closing operation due to the weight of the opening / closing body 10 when the tension of at least one of the pulling members 31 decreases due to an abnormality of the pulling mechanism 30 or the like. Yes.

  The opening / closing body 10 has a plurality of substantially rectangular panel-like members 11 elongated in the width direction connected in the opening / closing direction so as to rotate between the adjacent panel-like members 11, 11. At both ends in the width direction of the panel-like member 11, a plurality of rotatable roller members 12 are pivotally supported at predetermined intervals across the opening / closing body opening / closing direction. These roller members 12 are rotatably engaged with the guide rail 20.

  In the following description, the panel-like member positioned at the end portion in the opening direction of the opening / closing body 10 will be described with reference numeral 110 in particular.

  The guide rail 20 has a longitudinal rail portion 21 that extends in the opening / closing direction (vertical direction in the illustrated example) of the opening / closing body 10 and a lateral line that extends in the direction (horizontal direction in the illustrated example) that intersects the opening / closing direction of the opening / closing body 10 when opened. The rail part 22 and the smoothly curved corner rail part 23 that connects the vertical rail part 21 and the horizontal rail part 22 are configured in an integrally connected manner.

  The vertical rail portion 21 is disposed along the opening / closing direction at both ends in the width direction of the space A1 partitioned by the opening / closing body 10, and the horizontal rail portion 22 and the corner rail portion 23 are in the opening direction side of the casing A which is a stationary part (see FIG. According to the shown example, it is arranged in the storage space A2 of the opening / closing body 10 in the fully opened state secured on the ceiling side of the casing A). The guide rail 20 constituting the vertical rail portion 21, the horizontal rail portion 22, and the corner rail portion 23 has an engagement concave portion 24 having a substantially concave cross section in which the roller member 12 is rotatably engaged in the extending direction. Is formed.

  The traction mechanism 30 is wound or unwound by a shaft portion 32 disposed across the opening / closing body width direction, reel portions 33 and 33 supported on both ends of the shaft portion 32, and each reel portion 33. A traction member 31 and traction sources 34 and 34 for urging the shaft portion 32 in a direction in which the traction member 31 is wound around the reel portion 33 are provided.

  The shaft portion 32 is disposed across the width of the opening / closing body so as to be positioned on the upper extension line of the opening / closing body 10 in the fully closed state, and each of both end sides thereof is fixed through the reel portion 33 (for example, a fixed portion (for example, , And a frame-like member (not shown) constituting the overhead door 1 or a casing A or the like on which the overhead door 1 is installed).

  Each reel portion 33 is a substantially cylindrical member capable of winding and unwinding the pulling member 31, and a central portion thereof is fixed to one end portion of the shaft portion 32.

  As the pulling member 31, for example, a metal wire having flexibility that can be wound around the reel portion 33 can be used. The pulling member 31 has an end on the opening / closing body opening direction side fixed to the outer peripheral surface of the reel section 33, and a closing direction side end fixed to the opening direction side end of the opening / closing body 10.

  The pulling member 31 may be a long member that has a flexibility that can be wound around the reel portion 33 and has a tensile strength that can withstand a tensile force that acts on the pulling member 31 during the opening / closing operation of the opening / closing body 10. For example, the pulling member 31 may be a string-like member or a band-like member formed of a material having a tensile strength as described above, even if the pulling member 31 is a metal chain-like member, a chain-like member, or other than a metal (see FIG. Not shown).

  The traction source 34 can be formed by a spring or the like that urges the shaft portion 32 in the winding and rotating direction by fixing one end side to the shaft portion 32 and the other end side to a stationary portion.

  The traction source 34 has a mechanism for rotating the shaft portion 32 in the winding rotation direction by the elastic force of another elastic body such as rubber, a mechanism for rotating the shaft portion 32 in the winding rotation direction by the weight of the weight member, It is also possible to use a mechanism or the like that rotates the shaft portion 32 in the winding rotation direction by the power of an electric motor or the like (not shown). Further, according to the illustrated example, two traction sources 34 are provided so that even when one traction source 34 fails due to a failure or damage, the traction force of the other traction source 34 can be wound. However, it is also possible to employ a configuration in which one traction source 34 or three or more traction sources 34 are provided.

  The closing prevention device 40 has a flexible linear member 41 that can be wound, a winding device 42 that winds the linear member 41 so that the linear member 41 can be unwound, and stops the rotation of the winding device 42 in the feeding direction at a specified value. A rotation stop mechanism (not shown) to be moved, and a support member 43 that maintains the feeding direction of the linear member 41 in the direction of the horizontal rail portion 22.

  The rotation stopping mechanism described above has a structure that stops the feeding rotation of the winding device 42 when the feeding rotation of the winding device 42 reaches a speed and / or acceleration that is equal to or higher than a specified value. The rotation stopping mechanism will be briefly described. A gear-like member (not shown) that rotates coaxially with the winding device 42 and an engagement body (not shown) that engages with the gear-like member and stops its rotation. The engaging body rotates in the engaging direction when the rotation of the winding device 42 is at a speed and / or acceleration greater than a specified value, and is engaged with the gear-shaped member. The rotation of the gear-like member is stopped. Further, when the operation rotation of the winding device 42 is at a speed and / or acceleration less than a specified value, the engagement body does not rotate in the direction of the gear-shaped member, and the operation rotation of the winding device 42 is continued. The

  The linear member 41 is a long strip member formed of a cloth material such as a woven fabric or a braid. The linear member 41 has one end connected to the winding device 42 and the other end connected to the support member 43. The linear member 41 has a tensile strength that can withstand a tensile force acting on the linear member 41 when the rotation stopping mechanism stops the feeding of the linear member 41 during the sudden closing operation of the opening / closing body 10. It is necessary to be. For example, the linear member 41 may be a metal chain member, a chain member, or a material having the above-described tensile strength other than metal (not shown).

  The winding device 42 is provided with a spring mechanism or the like (not shown) that urges the linear member 41 in the winding direction and incorporates the rotation stop mechanism described above. The winding device 42 is installed on the opening direction side end of the horizontal rail portion 22, which is a stationary portion in the storage space A 2, and above the horizontal rail portion 22, and the linear member 41 is placed on the horizontal rail portion 22. Along the way, it is extended toward the closing direction.

  The aforementioned urging force of the mainspring mechanism or the like is set to a force smaller than the closing force that acts when the opening / closing body 10 performs a normal closing operation. The specified value for stopping the rotation of the winding device 42 according to the speed and / or acceleration of the winding rotation of the winding device 42 is the operating value of the winding device 42 when the opening / closing body 10 performs a normal closing operation. It is set to a value higher than the speed and / or acceleration of the output rotation.

  The support member 43 has a first arm member 43A whose one end is pivotally connected to the panel-like member 110, and the other end of the first arm member 43A is pivotally connected. The second arm member 43B is engaged and supported so as to be movable along the direction.

  2 to 8 are a configuration diagram and an operation diagram of the closing prevention device 40.

  The support member 43 according to the present embodiment is bent and extended as the first arm member 43A and the second arm member 43B rotate with respect to each other.

  The first arm member 43 </ b> A is a member having a concave or quadrangular cross section, and is pivotally supported by the opening / closing body 10 so as to be rotatable about an axial center C <b> 1 extending in the opening / closing body width direction.

  The second arm member 43B is a member having a concave cross section into which the first arm member 43A can be fitted. The first arm member 43A fitted with the concave open side being engaged and supported toward the first arm member 43A side. Is pivotally supported around an axis C2 parallel to the axis C1. The second arm member 43B includes an arm support roller member 44 that is pivotally supported about an axis C3 parallel to the axis C1 and a belt bracket 45 that connects the linear member 41. ing.

  The arm support roller member 44 is movably engaged with the horizontal rail portion 22 to support the support member 43 so as to be movable along the horizontal rail portion 22 (opening / closing body opening / closing direction). The belt bracket 45 is connected to the end of the linear member 41 on the opening / closing body closing direction side, and is fed out and wound up as the support member 43 moves along the lateral rail portion 22.

  In the following description, the axial center C1 is described as the first axial center C1, the axial center C2 as the second axial center C2, and the axial center C3 as the third axial center C3.

  As shown in FIG. 3B, the first shaft center portion C1 is supported by a first bearing bracket C10 provided on the surface of the panel-like member 110 on the storage space A2 side. The second shaft center portion C2 is penetratingly supported by the end portion side of the first arm member 43A in the opening / closing body opening direction and the end portion side of the second arm member 43B in the opening / closing body closing direction side. The third shaft center portion C3 is supported by a second bearing bracket C30 provided in the middle of the surface of the second arm member 43B on the opening direction side.

  In the support member 43 having the above-described configuration, the first arm member 43A rotates about the first axis portion C1 and the second axis portion C2 as the opening / closing body 10 opens, and this rotation is the third axis. This is transmitted as the rotation of the second arm member 43B around the center C3. That is, the support member 43 bends as the first arm member 43A and the second arm member 43B rotate about the third axial center portion C3 toward each other (see FIG. 4). Further, in the support member 43, the first arm member 43 </ b> A rotates about the first axis portion C <b> 1 and the second axis portion C <b> 2 as the opening / closing body 10 is closed, and this rotation is the third axis center. This is transmitted as the rotation of the second arm member 43B around the part C3. That is, the support member 43 extends as the first arm member 43A and the second arm member 43B rotate in directions away from each other about the third axial center C3 (see FIG. 3A).

  In the maximum bending state of the support member 43 (see FIG. 4), the opening / closing body 10 is in a fully opened state, and the bending angle is such that the end of the panel-like member 110 on the opening / closing body opening direction side does not contact the second arm member 43B. In the illustrated example, the angle is held at an angle slightly exceeding 90 °. In the maximum extended state (see FIG. 3A), the opening / closing body 10 is in a fully closed state, and the first arm member 43A is easily rotated in the bending direction by the opening operation of the opening / closing body 10. The arm member 43A is held at an angle that slightly bends toward the second arm member 43B (in the illustrated example, an angle that is slightly smaller than 180 °).

  Note that the angle of the support member 43 in the maximum bent state is not limited to the exemplified angle as long as the opening portion of the opening / closing body 10 does not contact the second arm member 43B. Further, the maximum extension state of the support member 43 is not limited to the exemplified angle as long as it can be bent reliably by the opening operation of the opening / closing body 10.

  The maximum bent state and the maximum extended state of the support member 43 are held by the first holding member 11A provided on the first bearing bracket C10 and the second holding member 12A provided on the second arm member 43B.

  The first holding member 11 </ b> A and the second holding member 12 </ b> A are in contact with the first arm member 43 </ b> A in the maximum bent state and the maximum extended state of the support member 43. The member 43B is fixed to a position that restricts rotation in the bending direction and the extension direction. That is, the first holding member 11A and the second holding member 12A make the angle of the support member 43 in the maximum bent state and the maximum extended state, and the end of the panel-like member 110 on the opening / closing body opening direction side becomes the second arm member 43B. It can be held at a bending angle that does not contact and an angle that allows the first arm member 43A to be slightly bent toward the second arm member 43B.

  The first holding member 11 </ b> A and the second holding member 12 </ b> A are not limited to the exemplified configurations as long as they can hold the maximum extended state and the maximum bent state of the support member 43.

  Next, based on FIGS. 3-8, operation | movement of the supporting member 43 accompanying the opening / closing operation | movement of the opening / closing body 10 is demonstrated.

  As shown in FIG. 3A, the support member 43 in the fully closed state of the opening / closing body 10 is in the maximum extended state, and the linear member 41 is fed out from the winding device 42. Further, the support member 43 in the fully closed state of the opening / closing body 10 has the arm support roller member 44 located near the end of the horizontal rail portion 22 on the opening / closing body closing direction side, and the first axis C1 is the vertical rail. It is located near the end on the opening / closing body opening direction side of the portion 21 and straddles the corner rail portion 23.

  As shown in FIG. 4, the support member 43 in the fully opened state of the opening / closing body 10 is in a maximum bent state, and the linear member 41 is wound up by the winding device 42.

  As shown in FIG. 5, when the opening / closing body 10 is opened from the fully closed state, the panel-shaped member 110 moves along the corner rail portion 23 to the horizontal rail portion 22 while changing the posture from the vertical direction to the horizontal direction. At this time, the support member 43 moves in the storage direction along the horizontal rail portion 22 in accordance with the opening operation of the opening / closing body 10. Further, the linear member 41 is wound around the winding device 42 by the urging force of the aforementioned spring mechanism or the like that urges the linear member 41 in the winding direction as the support member 43 moves.

  The opening operation of the opening / closing body 10 acts in a direction in which the support member 43 is bent by rotating it clockwise around the second axis C2 with respect to the first arm member 43A. At the same time, the urging force in the winding direction of the winding device 42 acting on the support member 43 via the linear member 41 rotates the second arm member 43B in the clockwise direction around the third axis C3. Acts in the direction of That is, the rotation of the second arm member 43B cancels the rotation of the first arm member 43A and acts so as not to rotate the first arm member 43A. Therefore, as shown in FIGS. 5 to 7, in the opening operation of the opening / closing body 10 (indicated by a solid line arrow), the support member 43 does not bend but moves in the retracted direction in the maximum extended state.

  In the state where all the linear members 41 shown in FIG. 7 are wound, the urging force of the winding device 42 is set to be in the “0” state. That is, since the urging force that rotates the second arm member 43B in the clockwise direction around the second axial center portion C2 is “0”, the second arm member 43A of the first arm member 43A that accompanies the opening operation of the opening / closing body 10 is used. A clockwise rotation about the shaft center portion C2 is possible.

  As shown in FIG. 8, the support member 43 in a state in which the linear members 41 are all wound up, the first arm member 43 </ b> A rotates clockwise by the opening operation of the continuous opening / closing body 10, and the timepiece The second arm member 43B rotates counterclockwise about the third axial center C3 by rotating the direction and opening the opening / closing body 10. That is, the support member 43 is bent by the clockwise rotation of the first arm member 43A and the counterclockwise rotation of the second arm member 43B, and when the opening and closing body 10 is released (when the opening and closing body 10 is fully opened). The maximum bending state shown in FIG.

  A stopper is provided on the horizontal rail portion 22 to stop the movement of the second arm member 43B at a position where all the linear members 41 are wound up, and the second arm member is bent during the bending operation of the support member 43. 43B may not be slid (not shown). Further, one end of the linear member 41 may be fixed to, for example, an end (non-moving portion) of the horizontal rail portion 22 on the opening / closing body opening direction side, and the winding device 42 may be fixed to the second arm member 43B. (Not shown).

  As shown in FIG. 8, when the opening / closing body 10 is closed from the fully opened state, the first arm member 43A is pulled by the opening / closing body 10 and moves in the closing direction (indicated by an imaginary line arrow), thereby It rotates counterclockwise around the center C1 and the second shaft center C2. At this time, the second arm member 43B rotates clockwise about the third axis C2 as the first arm member 43A rotates. Further, the first arm member 43A rotates counterclockwise and the second arm member 43B rotates clockwise by the continuous closing operation (indicated by phantom arrows) of the opening / closing body 10, thereby supporting the first arm member 43A. The member 43 is in the maximum extended state shown in FIG.

  As shown in FIG. 7, in the maximum extension state of the support member 43, the first arm member 43 </ b> A is close to the panel-like member 110 and is substantially parallel to the horizontal rail portion 22, and the second arm member 43 </ b> B is wound. The end on the take-out device 42 side is in a state located slightly above the horizontal rail portion 21. Then, as shown in FIG. 6, the support member 43 moves to the closing direction side in the maximum extension state by the continuous closing operation of the opening / closing body 10 (indicated by the phantom line arrow), and the linear member 41 is taken up by the winding device. It is paid out from 42. At this time, when the closing operation of the opening / closing body 10 is an abrupt closing operation, the rotation stopping mechanism described above is operated to stop the feeding of the linear member 41, whereby the closing operation of the opening / closing body 10 is stopped.

  When the closing operation of the opening / closing body 10 is a normal closing operation, the support member 43 moves in the closing direction in the maximum extended state, and the linear member 41 is drawn out along with this movement. When the opening / closing body 10 that performs the closing operation moves from the horizontal rail portion 22 to the vertical rail portion 21, the panel-like members 11, 110 are sequentially guided in the horizontal direction (the horizontal rail portion) by being guided by the corner rail portion 23. 22 directions) to the vertical direction (vertical rail portion 21 direction).

  As shown in FIG. 5, when the posture of the panel-shaped member 110 changes from the horizontal direction to the vertical direction, the panel-shaped member 110 rotates about the first axial center portion C1 in the direction away from the first arm member 43A. Then, the support member 43 is pulled down in the closing direction (indicated by an imaginary line arrow). Then, the support member 43 rotates counterclockwise about the third axial center portion C3 according to the posture of the panel-like member 110, and the panel-like member 110 reaches the fully closed position, so that FIG. ).

  In the closing operation of the opening / closing body 10 shown in FIG. 7 to FIG. 3A, the support member 43 receives the tensile force by the closing operation of the opening / closing body 10 acting on the first arm member 43 </ b> A and the linear member 41. The maximum extension state is maintained by the urging force in the winding direction of the winding device 42 acting on the two-arm member 43B.

  According to the support member 43 of the present embodiment, the feeding direction of the linear member 41 can be maintained in the direction along the lateral rail portion 22 from the start to the end of the feeding of the linear member 41 accompanying the movement in the closing direction. Further, since the urging force of the winding device 42 in the winding direction acts on the drawn-out linear member 41, the linear member 41 is wound with the support member 43 in the fully closed state of the opening / closing body 10. It can hold | maintain in the state which tension | tensile_strength produced with the apparatus 42. FIG. Furthermore, the feeding direction of the linear member 41 can be maintained in the direction along the horizontal rail portion 22 from the start to the end of winding of the linear member 41 accompanying the movement of the support member 43 in the opening direction. Further, the support member 43 in the maximum extension state and the maximum bending state holds the state in which the belt bracket 45 is positioned above the lateral rail portion 22. That is, the linear member 41 extending over the winding device 42 and the belt bracket 45 can be always positioned above the lateral rail portion 22 during the opening / closing operation. Further, the difference between the height position of the belt bracket 45 and the height position of the winding device 42 is reduced. That is, the linear member 41 can be maintained to be substantially parallel to the lateral rail portion 22 during the opening / closing operation.

  According to the closing prevention device 40 of the present embodiment, a braking function for a sudden closing operation of the opening / closing body 10 can be ensured by the rotation stop mechanism described above, and the linear shape follows the normal closing operation of the opening / closing body 10. The member 41 can be paid out. Further, since the support member 43 maintains the feeding direction of the linear member 41 in the direction along the horizontal rail portion 22, the linear member 41 is positioned in the storage space A2 in the normal closing operation of the opening / closing body 10. be able to. Further, since the support member 43 is bent in the storage direction in the fully opened state of the opening / closing body 10 and the total length is shortened, the support member 43 can be attached without expanding the storage space A2 in the direction of the lateral rail portion 22. Furthermore, since the guide rail 20 also serves as a member that supports the support member 43, the number of members constituting the closing prevention device 40 can be reduced, and the attachment work of the closing prevention device 40 can be made efficient. Further, since the linear member 41 is urged in the winding direction by the winding device 42, the winding of the linear member 41 can be made to follow the opening operation of the opening / closing body 10, and thereby, at the time of winding The linear member 41 can be positioned in the storage space A2.

  FIG. 9 is a schematic configuration diagram showing a second embodiment of the closure preventing device according to the present invention. This embodiment demonstrates the form which applied the closure prevention apparatus to the slide door which is an example of an opening / closing apparatus. Hereinafter, the opening / closing device will be described as a sliding door.

  The sliding door 1A is an opening / closing operation of the opening / closing body 100 while sliding only in the vertical direction in the drawing. The sliding door 1A includes a pulling member (not shown) that pulls the opening / closing body 100 in the opening direction, and a guide rail (not shown) that guides the sliding of the opening / closing body 100.

  The closing prevention device 50 of the present embodiment includes a linear member 410 and a winding device 420 that winds the linear member 410 so that the linear member 410 can be fed out in a direction intersecting the opening / closing body thickness direction in the opening / closing body thickness direction. And a support member 430 that maintains the feeding direction of the linear member 410.

  The linear member 410 is the same member as the linear member 41 exemplified in the first embodiment, and has one end connected to the winding device 42 and the other end connected to the opening direction side end of the opening / closing body 100, The support member 430 is supported.

  The winding device 420 is fixed to an existing immovable part (for example, a casing or the like on which the slide door 1A is installed) in the storage space A2. The winding device 420 has the same configuration as the winding device 42 illustrated in the first embodiment, and includes the mainspring mechanism and the rotation stop mechanism described above.

  The support member 430 is a position on the upper extension line of the opening / closing body 100 that does not interfere with the above-described traction device, guide rail, and the like, and can support the linear member 410 so as to change the direction from the feeding direction to the opening / closing body opening / closing direction. In addition, the rotating body is disposed so as to be rotatable about an axis C4 extending in the width direction of the opening / closing body. The support member 430 is rotatably supported with respect to an existing immovable portion (for example, a frame-like member (not shown) constituting the slide door 1A or a casing on which the slide door 1A is installed) in the storage space. Yes.

  According to the closing prevention device 50 of the present embodiment, a braking function for a sudden closing operation of the opening / closing body 10 can be ensured by the rotation stop mechanism described above, and a linear shape follows the normal closing operation of the opening / closing body 100. The member 410 can be paid out. Further, since the support member 430 maintains the feeding direction of the linear member 410 and changes the direction of the linear member 410 from the feeding direction to the opening / closing body opening / closing direction, the linear member accompanying the closing operation of the opening / closing body 100 When the 410 is extended, the linear member 410 can be positioned in the storage space A2. Furthermore, since the winding device 43A and the support member 430 are arranged in the existing immovable part in the storage space A2, there is no need to expand the storage space A2 when the closing prevention device 50 is provided. Is also applicable. Furthermore, since the support member 430 is a rolling element, the structure of the closing prevention device 50 can be simplified. Therefore, the closing prevention device 50 of the present embodiment can be applied to the slide door 1A in which the opening / closing body 100 is stored in the same direction as the opening direction of the opening / closing body 100.

  FIG. 10 is a schematic view showing a third embodiment of the closure preventing device according to the present invention. The opening / closing device to which the closing prevention device 60 of the present embodiment is applied is a sliding door having the same configuration as the sliding door 1A of the second embodiment. In addition, description about the part which overlaps with the said 2nd Embodiment is abbreviate | omitted by attaching | subjecting a same sign.

  The closing prevention device 60 of the present embodiment includes a linear member 410 and a winding device 420 that winds the linear member 410 so that the linear member 410 can be fed out in the closing direction of the opening / closing body 100. In addition, the support member 43, 43A as exemplified in the second embodiment is not provided, and the linear member 410 fed from the winding device 420 is directly connected to the opening / closing body 100.

  The linear member 410 has one end connected to the winding device 42 and the other end connected to the opening direction side end of the opening / closing body 100. The winding device 420 is a position on the upper extension line of the opening / closing body 100 that does not interfere with the above-described traction device, guide rail, and the like, and an existing immovable portion in the storage space A2 (for example, the sliding door 1A is not shown) It is fixed to a frame-like member, a casing that is the installation target of the slide door 1A, such as a casing that is the installation target of the slide door 1A, or the like.

  That is, the closing prevention device 60 of the present embodiment is configured such that the linear member 410 is fed out and wound up in a straight line from above the opening / closing body 100 in the vertical direction along the opening / closing direction.

  According to the closing prevention device 60 of the present embodiment, a braking function for a sudden closing operation of the opening / closing body 100 can be ensured by the rotation stopping mechanism described above, and a linear shape follows the normal closing operation of the opening / closing body 100. The member 410 can be paid out. In addition, the winding device 420 is fixed to an existing immovable portion in the storage space A2 on the upper extension line of the opening / closing body 100, and the linear member 410 is extended and wound in the vertical direction along the opening / closing direction of the opening / closing body 100. Therefore, when providing the closing prevention device 60, it is not necessary to expand the storage space A2, and the present invention can also be applied to an existing opening / closing device. Furthermore, since it is comprised by two members, the linear member 410 and the winding apparatus 420, the structure of the closure prevention apparatus 60 is simple. Therefore, the closing prevention device 60 of the present embodiment can be applied to the slide door 1A in which the opening / closing body 100 is stored in the same direction as the opening direction of the opening / closing body 100, and intersects in the opening / closing body thickness direction. This is effective for application to the sliding door 1A in which the storage space A2 in the direction has no margin.

1: Overhead door (opening / closing device) 10: Opening / closing body 20: Guide rail 22: Horizontal rail portion (non-moving part) 40: Closure prevention device (closure prevention device for opening / closing device)
41: linear member 42: winding device 43: support member 43A: first arm member 43B: second arm member 110: panel-like member A2: storage space C1: first shaft center C2: second shaft center C3 : 3rd axial center part 1A: Sliding door (opening and closing device) 100: Opening and closing body 410: Linear member 420: Winding device 430: Support member 50: Closure prevention device (closure prevention device for opening and closing device)
60: Closure prevention device (closure prevention device for switchgear)

Claims (5)

  A linear member that is provided in an opening / closing device that is slid without retracting the opening / closing body and is stored in a storage space on the opening direction side and that can be wound in the closing prevention device for the opening / closing device that prevents a sudden closing operation of the opening / closing body. And a winding device that winds up the linear member by the biasing force of the biasing member, and feeds the linear member by a force larger than the biasing force, and a speed at which a feeding rotation of the winding device exceeds a specified value and / or Or a rotation stop mechanism that stops the rotation of the winding device in the case of an abnormality that has accelerated, and one of the leading end side of the linear member and the winding device is an end in the opening direction of the opening / closing body. A closing prevention device for an opening / closing device, characterized in that it is fastened to the part side and the other is fastened to a stationary part on the storage space side.   The opening / closing device houses the opening / closing body in a direction intersecting with the opening / closing body opening / closing direction, and the feeding direction of the linear member is set to the direction intersecting with the opening / closing body opening / closing direction of the opening / closing body, and the opening / closing body is fully opened. A support member that maintains the feeding direction of the linear member over the fully closed state, and the support member supports the leading end side of the linear member or the winding device, and supports the stationary part of the storage space. And an axis extending in the opening / closing body width direction with respect to the opening direction end of the opening / closing body. The closing prevention device for an opening / closing device according to claim 1, wherein the closing prevention device is supported so as to be rotatable about a central portion.   The support member can be bent in the storing direction when the opening / closing body is fully opened, with the first arm member located on one end side of the support member and the second arm member located on the other end side of the support member being The closing prevention device for an opening / closing device according to claim 2, wherein the closing prevention device is connected.   4. The closing prevention device for an opening / closing device according to claim 2, wherein the stationary part that supports the supporting member is a guide rail that guides an opening / closing operation of the opening / closing body.   A support member for maintaining the extension direction of the linear member from the fully open state to the fully closed state of the open / close body, wherein the support member is closed to the open / close body; A rotating body that is supported by a stationary part on the direction side so as to be rotatable about an axial center extending in the width direction of the opening / closing body, wherein the rotating body moves the linear member from the intersecting direction to the opening / closing body opening / closing direction. The closing prevention device for a switchgear according to claim 1, wherein the device is supported so as to change its direction.

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