JP2015175219A - switchgear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switchgear capable of forming a string-like member not as a loop-shaped endless member but as an ended member, and capable of simplifying a structure as a whole.SOLUTION: This device comprises a water cutoff panel 10 of becoming an opening-closing body movable for opening-closing, a roller chain 24 connected to this water cutoff panel 10 and becoming a flexible string-like member and a sprocket wheel 15 of becoming a rotary member wound around with this roller chain 24, and the water cutoff panel 10 opens-closes a part of an opening part by the movement of the roller chain 24 by reciprocal rotation of the sprocket wheel 15, and the roller chain 24 becomes an ended member, and an area of making compressive force act from the sprocket wheel 15 for moving the water cutoff panel 10, exists in this ended roller chain 24, and deflective deformation of this area is checked by deflective deformation checking means 25.

Description

  The present invention relates to an opening / closing device in which an opening / closing body that opens and closes closes at least a part of an opening, and is installed in, for example, a water stop device for preventing inflow of water from an opening, a truck bed, or the like. It can be used as a shutter device.

  Patent Document 1 below discloses a water stop device that has an open / close device that opens and closes and closes at least a part of the opening, thereby preventing the inflow of water from the opening. ing. The water stop device includes a water stop panel that is an opening / closing body that can be opened and closed, a chain that is connected to the water stop panel and is a flexible string member, and the chain is hung around. A sprocket wheel that is a rotating member, and the water stop panel opens and closes a part of the opening by the movement of the chain by forward and reverse rotation of the sprocket wheel.

  More specifically, in the technique disclosed in Patent Document 1, the chain, which is a flexible string-like member, is a loop-like endless member. When one sprocket wheel rotates, the chain moves and the other sprocket wheel also rotates, and the water stop panel opens and closes.

JP-A-6-316917

  According to the technique disclosed in Patent Document 1, in order to open and close the water stop panel that is an opening and closing body, the chain that is a string-like member needs to be a loop-like endless member. This must be done by rotating two sprocket wheels.

  An object of the present invention is to provide an opening / closing device in which the string-like member can be an end member instead of a loop-like endless member, and the structure can be simplified as a whole.

  An opening / closing apparatus according to the present invention includes an opening / closing body that can be opened and closed, a flexible string-like member connected to the opening / closing body, and a rotating member around which the string-like member is wound, In the opening / closing device in which the opening / closing body opens / closes at least a part of the opening by the movement of the string-like member by forward / reverse rotation of the rotating member, the string-like member serves as an end member. The string-like member has a region where a compressive force is applied from the rotating member to move the opening / closing body, and includes a bending deformation preventing means for preventing the region from bending and deforming. It is characterized by being.

  According to this opening / closing device, the string-like member is an end member, not a loop-like endless member. Therefore, the number of rotating members for hanging the string-like member is only one. Therefore, the simplification of the structure as a whole can be achieved together with the end of the string-like member.

  In this opening / closing device, the opening / closing body opens / closes at least a part of the opening by moving the string-like member by forward / reverse rotation of the rotating member around which the string-like member serving as the end member is wound. Thus, even if the string-like member has a region where a compressive force is applied from the rotating member to move the opening / closing body, the bending deformation preventing means for preventing the region from bending and deforming. Since it is provided, the string-like member can be moved by the compressive force in this region of the string-like member to move the opening / closing body.

  In the present invention described above, in order to generate the region in the string-like member, for example, the string-like member is hung around the rotating member between both end portions in the length direction of the string-like member, and 2 Of the string-like members extending in one direction, the region where the compressive force acts from the rotating member may be present in one of the extending portions.

  In such a configuration, for example, a string-shaped member that is an end member is linear, and the string-shaped member is hung around a rotating member between both ends in the length direction of the linear string-shaped member. Of the string-like members extending in the front-rear direction from the rotating member, this is realized by causing the region where the compressive force is applied from the rotating member to exist in one extending portion.

  Further, in order to generate the region in the string-like member, the string-like member is hung on the rotating member between both ends in the longitudinal direction of the string-like member, and is extended in two directions from the rotating member. These stretching directions of the string-like member are converted by the rotating member, and one of the stretching directions is defined as a direction having a vertical component, and the other stretching direction is defined as a horizontal component. The region where the compressive force acts from the rotating member may exist at a position in the extending direction having the horizontal component.

  Further, in this latter example, the string-like member is connected to the opening / closing body at two locations separated in the moving direction of the opening / closing body, and the natural length dimension of the string-like member between these connecting portions is determined. The opening of the opening / closing body is larger than the distance between the two connecting portions, and one of the two connecting portions at the extending portion having the vertical component is moved forward by the movement of the string-like member. The region where the compressive force is applied to the string-like member from the rotating member can be generated in the string-like member when the rotating member is reached and the portion in the stretching direction having a horizontal component is reached.

  In this example, the opening / closing body can close at least a part of the opening when the two connecting portions reach the extending portion having the vertical component.

  Furthermore, a part of the opening / closing body when at least a part of the opening is closed in this way may be accommodated in the guide member for the opening / closing body.

  Further, when a part of the opening / closing body when at least a part of the opening is closed in this way is housed in the opening / closing body guide member, A receiving portion for receiving a part of the string-like member between the two connecting portions may be provided.

  According to this, as described above, the string-like member is connected to the opening / closing body at two locations separated in the moving direction of the opening / closing body, and the natural length dimension of the string-like member between these connecting portions is Even if the distance between the two connecting portions of the opening / closing body is larger than the distance between the two connecting portions, the string-like member hangs down greatly inside the guide member for the opening / closing body. It is possible to effectively prevent contact with the like.

  Moreover, let the other connection part be one end part of the both ends of a string-like member among the two connection parts, and the other end of said one connection part and both ends of a string-like member At least one roller may be attached to the string-like member, and a roller guide member for guiding the roller may be provided in the opening / closing device according to the present invention.

  According to this, the movement of the string-like member due to the rotation of the rotating member can be smoothly performed by the roller being guided by the roller guide member.

  In the present invention described above, the string-like member may be an arbitrary member as long as it is an end member, has flexibility, and moves by the rotation of the rotating member.

  That is, the string-like member according to the present invention may be a chain, a wire, a belt, a synthetic resin string member, or the like.

  When the string member according to the present invention is used as a chain, the chain is formed by a pin in which links adjacent to each other in the length direction of the chain are rotatably fitted on the outer periphery. It is good also as a roller chain connected.

  Thus, when the string-like member according to the present invention is a roller chain, the rotating member is a sprocket wheel, and the bending deformation prevention means described above prevents the roller chain from bending and deforming around the pin. It is a means to do.

  As a result, even if there is a region where the compressive force acts on the roller chain from the sprocket wheel, the bending deformation preventing means can prevent the roller chain from being bent and deformed around the pin in this region.

  Further, when the axial direction of the pin of the roller chain is a horizontal direction or a substantially horizontal direction, the bending deformation preventing means is disposed at least at intervals in the length direction of the roller chain. Even if there is a region where the compression force is applied to the roller chain from the sprocket wheel by having a pinch portion for pinching from the horizontal direction or the direction perpendicular to the horizontal direction over three, in this region The roller chain can be prevented from being bent and deformed around the pin.

  The present invention described above can be applied to any opening / closing device as long as the opening / closing body that can be opened and closed can open and close at least a part of the opening. It is a water stop panel for closing a part of the part, and is a water stop device for preventing the inflow of water from the opening by the water stop panel. It can be applied to a shutter device that opens and closes a shutter curtain, an entrance shutter device that opens and closes the entrance and exit of the shutter curtain, and a window shutter device. it can.

  According to the present invention, the string-like member can be an end member instead of a loop-like endless member, and an effect that the structure can be simplified as a whole can be obtained.

FIG. 1 is a perspective view showing a ground structure to which a water stop device, which is an opening / closing device according to an embodiment of the present invention, is applied, and a lower part of an entrance / exit where a water stop panel as an opening / closing body is an opening. It is the figure which showed the time of full closure which has closed. FIG. 2 is a front view of the ground structure with a part omitted. FIG. 3 is a partially enlarged front view of the water stop panel. 4 is a cross-sectional view taken along line S4-S4 of FIG. 5 is a cross-sectional view taken along line S5-S5 of FIG. FIG. 6 is an enlarged view showing a portion of the bending deformation prevention means shown in FIG. 7 is a cross-sectional view taken along line S7-S7 in FIG. FIG. 8 is a front sectional view showing the roller guide member extending in the horizontal direction or the substantially horizontal direction shown in FIG. 2. FIG. 9 is a schematic diagram of FIG. 2 showing the water stop panel when fully closed. FIG. 10 is a view similar to FIG. 9 showing when the water stop panel opens and moves. FIG. 11 is a view similar to FIG. 9 showing the water stop panel further opened and moved. FIG. 12 is a view similar to FIG. 9 showing the water stop panel opened and moved to near the fully open position. FIG. 13 is a view similar to FIG. 9 showing when the water stop panel has reached the fully open position. FIG. 14 is a front sectional view showing an internal structure of a water stop panel guide member that is an opening / closing body guide member according to another embodiment and an end roller chain that is a string-like member. 15 is a cross-sectional view taken along line S15-S15 in FIG.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. The opening / closing device according to the present embodiment is a water stop device for closing a lower portion of a ground entrance / exit leading to a subway station or the like in a watertight state in the case of heavy rain, for example. FIG. 1 shows an above-ground structure 1 in which an entrance 2 leading to an underground facility such as a subway station or underground mall is formed, and the underground structure 1 is transferred from the entrance 2 which is an opening of the above-described ground structure 1. A staircase 3 is extended. The ground structure 1 has a roof portion 4 and left and right side wall portions 5, and a portion surrounded by the front end portion of the roof portion 4 and the front end portions of the left and right side wall portions 5 is an entrance / exit 2. .

  The opening / closing body according to the present embodiment is a water stop panel 10, and FIG. 1 shows that the water stop panel 10 reaches the fully closed position in order to prevent water due to heavy rain or the like from flowing into the underground facility from the entrance 2. Shows when. Thus, when the water stop panel 10 has reached the fully closed position, the left and right ends of the water stop panel 10 are inserted into the water stop panel guide member 11 attached to the inner surfaces of the left and right side walls 5. , Stored. These water-stop panel guide members 11 that are opening / closing body guide members are U-shaped and open toward the inside of the entrance 2 in plan view, and have the same height as the water-stop panel 10. Or it has the vertical dimension which is substantially the same.

  FIG. 2 is a partially omitted front view of the ground structure 1 as viewed from the water stop panel 10 side. FIG. 2 is a cross-sectional view taken along the line S4-S4 of FIG. 2, with a first roller guide member 12 extending in the vertical direction on the inner surfaces of the left and right side wall portions 5 above the water blocking panel guide member 11. As shown in FIG. 4, near the upper end of each first roller guide member 12, a rotating body 13 that is rotatable about a horizontal or substantially horizontal shaft 13A is formed on the inner surfaces of the left and right side wall portions 5. It is arranged. The rotating body 13 is formed by coaxially coupling and integrating two sprocket wheels 14 and 15 which are two rotating members. Of these sprocket wheels 14, 15, one sprocket wheel 14 is a driven sprocket wheel, and a rotational force is transmitted to the driven sprocket wheel 14 from the drive sprocket wheel 16 via an endless roller chain 17. It has become.

  The drive sprocket wheel 16 and the roller chain 17 are provided for each of the left and right side wall portions 5, and the rotation center shaft 18 of the drive sprocket wheel 16 connects the left and right drive sprocket wheels 16 to each other (see FIG. 2). ). Further, the driving force of the electric motor 19 attached to the inner surface of one of the left and right side wall portions 5 is applied to the rotation center shaft 18 via the sprocket wheel 20, the roller chain 21 and the sprocket wheel 22. Communicated. For this reason, the driven sprocket wheel 14 rotates forward and backward by forward and reverse driving of the electric motor 19, and the sprocket wheel 15 that is coaxially coupled and integrated with the driven sprocket wheel 14 also rotates forward and backward. An operating device 23 for causing the electric motor 19 to perform forward driving, reverse driving, and driving stop is disposed on one inner surface of the left and right side walls 5.

  A roller chain 24 that is a flexible string member is wound around the sprocket wheel 15. The roller chain 24 is an end member, and is not a loop-like endless member. Therefore, the end roller chain 24 is wound around the sprocket wheel 15 between both end portions in the length direction of the end roller chain 24, and the sprocket wheel 15 is used for the end roller chain. It is a sprocket wheel.

  Further, as shown in FIG. 4, at a position corresponding to the upper part of the sprocket wheel 15, the bending deformation preventing means 25 is disposed on the inner surfaces of the left and right side wall portions 5. Has a length that extends horizontally or substantially horizontally to the drive sprocket wheel 16 side. The starting end of the bending deformation prevention means 25 is in the vicinity of the sprocket wheel 15. In other words, the distance between the starting end of the bending deformation prevention means 25 and the sprocket wheel 15 is such that the end roller chain 24 is bent and deformed downward. The distance from the sprocket wheel 15 to the bending deformation prevention means 25 while maintaining the horizontal posture or the substantially horizontal posture without the movement, and the starting end of the second roller guide member 26 is in the vicinity of the terminal end of the bending deformation prevention means 25. The second roller guide member 26 disposed on the inner surfaces of the left and right side wall portions 5 also extends horizontally or substantially horizontally toward the drive sprocket wheel 16 in the same manner as the bending deformation prevention means 25. Have Roller chain end guide members 27 are disposed on the inner surfaces of the left and right side wall portions 5 on the upper side of the second roller guide member 26. The roller chain end guide member 27 is a second roller. It is formed of a rod-like member that is parallel or substantially parallel to the guide member 26 for use.

  As described above, since the end roller chain 24 is wound around the sprocket wheel 15 between both ends in the length direction of the end roller chain 24, the extending direction of the end roller chain 24 is as follows. Since the sprocket wheel 15 is converted into two directions, and one of the extending directions is a downward direction, this extending direction is a direction having a vertical component, and the other extending direction is the ground. Since this is a lateral direction that enters the inside of the structure 1, this extending direction is a direction having a horizontal component.

  When the water stop panel 10 has reached the fully closed position in FIG. 4, the extending portion 24 </ b> A having the vertical component of the end roller chain 24 is transferred from the sprocket wheel 15 to the above-described first roller guide member 12. The extending portion 24 </ b> B that extends downward along the horizontal component and extends in the horizontal direction or substantially horizontal direction that enters the ground structure 1 from the sprocket wheel 15.

  FIG. 3, which is a partially enlarged front view of the water stop panel 10, shows a configuration of a portion facing the water stop panel 10 in the extending portion 24 </ b> A having a vertical component. As shown in FIG. 3, the end roller chain 24 is similar to a general roller chain in that the links 30 adjacent to each other in the length direction of the end roller chain 24 are connected to each other by a roller 31. It is the structure connected with the pin 32 engage | inserted so that it could rotate freely. In the present embodiment, of the pins 32 constituting the end roller chain 24, one end in the length direction of the end roller chain 24, in other words, the end on the water stop panel 10 side. The pin 32 </ b> A disposed on the water stop panel 10 has a length reaching the side surface 10 </ b> A of the water stop panel 10, and the pin 32 </ b> A is connected to the water stop panel 10. Of the pins 32, the pin 32 </ b> B that is spaced upward from the pin 32 </ b> A also has a length that reaches the side surface 10 </ b> A of the water stop panel 10. The pin 32 </ b> B is also connected to the water stop panel 10. .

  For this reason, the end roller chain 24 has pins 32A at two portions that are separated in the vertical direction when the water stop panel 10 is fully closed, in other words, at two portions that are separated in the moving direction of the water stop panel 10. , 32B to the water stop panel 10. Among these connecting portions, one connecting portion is an end portion on the water stop panel 10 side among both end portions in the length direction of the end roller chain 24.

  And the natural length dimension of the end roller chain 24 between the two connecting portions connected to the water stop panel 10 by the pins 32A and 32B is the distance between the pins 32A and 32B for the water stop panel 10. Is bigger than. For this reason, as shown in FIG. 4, the left and right end portions of the water stop panel 10 are inserted into the water stop panel guide member 11 and are closed when the water stop panel 10 that is housed is fully closed. The roller chain 24 has a slack portion 24C that is slack between the two pins 32A and 32B.

  In addition, the length dimension of the bending deformation | transformation prevention means 25 mentioned above is smaller than the space | interval dimension between pin 32A, 32B about the water stop panel 10. FIG.

  As shown in FIG. 3, of the two pins 32A and 32B, the pin 32B has a length extending on the opposite side to the water stop panel 10 side, and a roller 33 is provided at the tip of the pin 32B. Is mounted rotatably.

  As shown in FIGS. 2 and 4, the end roller chain 24 has a pin 32 </ b> B and both ends of the end roller chain 24 in the length direction opposite to the water stop panel 10 side. The rollers 34 are also attached to the end portions on the side. In the present embodiment, a total of four rollers 34 are arranged at equal intervals, and these rollers 34 are connected to the end roller chain 24. The pin 32C provided at the location where the roller 34 is arranged is extended to the opposite side to the water stop panel 10 side, and is rotatably attached to this extended end portion. It has become.

  Further, one end of a flexible connecting member 35 is connected to the end of the end roller chain 24 in the length direction opposite to the water stop panel 10 side, and the wire A ring member 36 slidably fitted on the outer periphery of the rod-shaped roller chain end guide member 27 described above is attached to the other end portion of the connecting member 35 such as described above.

  5 is a cross-sectional view taken along line S5-S5 of FIG. As shown in FIG. 5, the first roller guide member 12 described above has a pair of guide portions 12 </ b> A arranged at a horizontal interval corresponding to the diameters of the rollers 33 and 34. The rollers 33 and 34 can enter between the guide portions 12A, and the rollers 33 and 34 extend from the first roller guide member 12 to the leading ends of the guide portions 12A. A lip portion 12B for preventing escape is formed.

  6 shows the bending deformation preventing means 25 shown in FIG. 4, and FIG. 7 is a sectional view taken along line S7-S7 in FIG. As shown in FIG. 7, the bending deformation preventing means 25 has a pair of pinching portions 25 </ b> A arranged above and below the above-mentioned extending portion 24 </ b> B having a horizontal component in the end roller chain 24. The front ends of these sandwiching portions 25A are projecting portions 25B projecting toward each other, and the vertical distance between these projecting portions 25B is the outer diameter of the roller 31 of the end roller chain 24. And corresponding dimensions. Thus, the roller 31 is sandwiched from above and below by the protruding portions 25B of the pair of upper and lower sandwiching portions 25A.

  Further, as shown in FIG. 6, each of the sandwiching portions 25 </ b> A and the protruding portions 25 </ b> B has a horizontal dimension or a substantially horizontal length dimension, and this length dimension is the length of the end roller chain 24. The length dimension extends over at least three pins 32 that are spaced apart in the vertical direction.

  For this reason, the end roller chain 24 in which the axial direction of each pin 32 is horizontal or substantially horizontal, the bending deformation prevention means 25 reached by the above-described extending portion 24B having a horizontal component, The bending deformation prevention means 25 prevents the end roller chain 24 from being bent and deformed up and down around the pin 32, in other words, from bending deformation.

  FIG. 8 is a front sectional view of the second roller guide member 26 shown in FIG. Similarly to the first guide guide member 12, the second roller guide member 26 also has a pair of guide portions 26A arranged at intervals in the vertical direction corresponding to the diameters of the rollers 33 and 34. The rollers 33 and 34 can enter between the guide portions 26A, and the rollers 33 and 34 are prevented from coming out of the second roller guide member 26 at the leading ends of the guide portions 26A. A lip portion 26B is formed.

  Next, the operation of the water stop device according to this embodiment will be described.

  FIG. 9 is a schematic view when the water stop panel 10 reaches the fully closed position as shown in FIG. When the electric motor 19 is positively driven by operating the operating device 23 shown in FIG. 4, the end roller chain sprocket wheel 15 rotates clockwise in FIG. 4 about the shaft 13A. This rotation direction is a direction in which the extending portion 24A having the vertical component of the end roller chain 24 is pulled up by the sprocket wheel 15 and is thus connected to the end roller chain 24 by two pins 32A and 32B. The water stop panel 10 is moved from the left and right ends of the water stop panel 10 to the upper side by the water stop panel guide member 11, and the lower part is moved by the water stop panel 10 that has reached the fully closed position. The entrance 2 of the ground structure 1 that has been closed begins to open.

  FIG. 10 is a schematic diagram showing the water stop panel 10 moving upward from the fully closed position as described above. In FIG. 10, the end roller chain 24 is connected to the water stop panel 10. Of the pins 32A and 32B, the pin 32B reaches the sprocket wheel 15 by the movement of the end roller chain 24, and the pin 32B slightly exceeds the uppermost part of the sprocket wheel 15 so that the end roller chain 24 It is shown when the stretched portion 24B having the above-described horizontal component is reached. Thus, when the end roller chain 24 is shown in FIG. 10, the whole extending portion 24A having the above-described vertical component of the end roller chain 24 is a slack portion 24C. .

  Further, when the water stop panel 10 moves from the fully closed position shown in FIG. 9 to the position shown in FIG. 10, each of the water stop panels 10 attached to the end roller chain 24 with pins 32 </ b> B and 32 </ b> C. The rollers 33 and 34 are guided by the pair of guide portions 12A of the first roller guide member 12 extending in the vertical direction or substantially vertically, and the pin 32C to which the roller 34 is attached passes the sprocket wheel 15, After the bending deformation prevention means 25 has passed, the roller 34 moves to the pair of guide portions 26A of the second roller guide member 26. As shown in FIG. 10, the portion of the end roller chain 24 between the rollers 34 becomes a portion 24 </ b> D that hangs downward, and both end portions of the end roller chain 24 in the length direction. Of these, the end opposite to the water stop panel 10 side is guided and moved by the roller chain end guide member 27 by the connecting member 35 and the ring member 36 described above.

  Further, as shown in FIG. 10, after the pin 32B to which the roller 33 is attached passes the sprocket wheel 15 for the end roller chain for a while, the sprocket wheel 15 is centered on the shaft 13A as shown in FIG. If the rotation continues to the right, the stretched portion 24A having the vertical component of the end roller chain 24 becomes a slack portion 24C. Therefore, the stretched portion 24B having the horizontal component of the end roller chain 24 is changed to the stretched portion 24B. A region where a compressive force is generated by the load pushed from the sprocket wheel 15 is generated, and in this compressed region, the end roller chain 24 is bent and deformed up and down around the pin 32 by the compressive force. If the roller chain 24 is bent and deformed, the end roller chain 24 cannot be moved further. It is not possible to continue the opening movement of the water stop panel 10.

  However, in the present embodiment, at least a part of the extending portion 24B at this time is at a portion where the bending deformation prevention means 25 is disposed, and the bending deformation prevention means 25 is as shown in FIG. , For sandwiching at least three rollers 31 of the end roller chain 24 from the horizontal direction that is the axial direction of the pins 32 of the end roller chain 24 or the vertical direction orthogonal to the substantially horizontal direction, in other words, for sandwiching at least three pins 32 Since the pair of upper and lower clamping portions 25A are provided, the end roller chain 24 is bent and deformed vertically around the pin 32 by the clamping action of these clamping portions 25A, that is, the end roller chain 24 is bent. Deformation will be prevented. For this reason, at least a part of the stretched portion 24B can be a region where a compressive force is generated by a load pushed from the sprocket wheel 15, and the end roller chain 24 can be further moved by the compressive force in this region. Then, the opening movement of the water stop panel 10 can be continued, and at this time, the slack portion 24C is gradually reduced.

  Even when the water blocking panel 10 and the end roller chain 24 change from the state shown in FIG. 9 to the state shown in FIG. 10, at least a part of the extension region 24 </ b> B of the end roller chain 24 is caused by the action of the bending deformation prevention means 25. Since the compression force can be generated from the sprocket wheel 15, as described above, after the pin 32 </ b> C to which the roller 34 is attached passes the sprocket wheel 15 and the bending deformation prevention means 25 passes, The second roller guide member 26 can be moved to the pair of guide portions 26A.

  FIGS. 11 to 13 show the state of the water stop panel 10 and the end roller chain 24 after that, and FIG. 13 shows the state when the water stop panel 10 reaches the fully open position. Until the water stop panel 10 reaches the fully open position, the portion between the two pins 32A and 32B of the end roller chain 24 meshes with the sprocket wheel 15. Therefore, the right side of the sprocket wheel 15 in FIG. After the slack portion 24C of the end roller chain 24 shrinks and disappears due to the rotation, the pin 32A provided at the end portion on the water stop panel 10 side of both ends in the length direction of the end roller chain 24 As a result, a pulling force acts on the water stop panel 10 to which the pin 32 </ b> B is connected, thereby causing a horizontal moving force to reach the fully open position.

  Thus, when the water stop panel 10 reaches the entire position, the pin 32A reaches the uppermost part of the sprocket wheel 15 for the end roller chain or a little before the uppermost part, and is attached to the pin 32B. The roller 33 that has reached the second roller guide member 26, whereby the posture of the water stop panel 10 that has reached the fully open position becomes a horizontal state or a substantially horizontal state.

  11 shows a state where the posture of the water stop panel 10 is an intermediate posture between the posture when fully closed and the posture when fully open, that is, 45 degrees from the vertical direction (or horizontal direction) or substantially. It shows the time when the posture is inclined 45 degrees. As described above, the natural length dimension of the end roller chain 24 between the two connecting portions with the water stop panel 10 by the pins 32A and 32B is the distance between the pins 32A and 32B with respect to the water stop panel 10. In this embodiment, when the posture of the water stop panel 10 is the intermediate posture in FIG. 11 between the fully closed posture and the fully opened posture, Two connecting portions to the water stop panel 10 by the pins 32A and 32B so that the slack portion 24C disappears in the extending portion 24A having 24 vertical components, or so that a slight slack portion 24C remains in the extending portion 24A. The natural length dimension of the end roller chain 24 between is set.

  The water stop device of the present embodiment is provided with a rotary encoder (not shown) that measures the rotation speed of the electric motor 19 or the sprocket wheel 15 for the end roller chain, and the water stop panel 10 is fully opened by the rotary encoder. When it is detected that the position has been reached, the electric motor 19 stops the positive drive under the control of a control device (not shown) to which a signal from the rotary encoder is input.

  The water stop panel 10 at the normal time is stopped at the fully open position as described above, and when the water stop panel 10 is stopped at the fully open as described above, it is underground from the entrance 2 of the ground structure 1 due to heavy rain or the like. When the possibility of water flowing into the facility occurs, the electric motor 19 is reversely driven by the operation of the operation device 23. As a result, the sprocket wheel for the end roller chain 15 rotates counterclockwise in FIG. 4 about the shaft 13A. Therefore, first of all, the stoppage of the water stop panel 10 and the end portions of the end roller chain 24 in the length direction is stopped. The pin 32A connecting the end on the water panel 10 side reaches the lower side of the sprocket wheel 15, and the portion 24D of the end roller chain 24 that hangs downward is gradually reduced. Next, a stretched portion 24A having a vertical component including the pin 32A is generated in the end roller chain 24, and the weight of the water stop panel 10 acts on the stretched portion 24A. It will be exactly where it hangs vertically.

  A downward pulling force acts on the extending portion 24A at this time due to the weight of the water stop panel 10, but the sprocket wheel 15 supports the weight of the water stop panel 10 because the rotation speed of the sprocket wheel 15 is low. However, the pin 32A descends at a speed corresponding to the rotational speed of the sprocket wheel 15, and the attitude of the water stop panel 10 gradually changes from a horizontal attitude or a substantially horizontal attitude to a vertical attitude.

  Of the two pins 32 </ b> A and 32 </ b> B connecting the end roller chain 24 and the water stop panel 10, the end roller chain 24 is not moved until the pin 32 </ b> B passes the sprocket wheel 15 for the end roller chain. 24A is a portion where the slack portion 24C is generated, and after the pin 32B passes the sprocket wheel 15, the weight of the water stop panel 10 is supported by the sprocket wheel 15 rotating at a low speed. Of the chain 24, a portion between the pin 32 </ b> B and the sprocket wheel 15 is a portion where a tension force is applied, and the water stop panel 10 approaches the fully closed position in this state. Thereafter, the two pins 32A and 33B enter the inside of the water stop panel guide member 11, and the right and left ends of the water stop panel 10 are inserted and housed inside the water stop panel guide member 11, thereby stopping the water stop panel. The water panel 10 reaches the fully closed position shown in FIG. At this time, a portion of the end roller chain 24 between the pins 32A and 32B is a slack portion 24C.

  When the water stop panel 10 reaches the fully closed position from the fully open position in this way, the roller 33 moves from the second roller guide member 26 to the first roller guide member 12, and a total of four pieces. Of the rollers 34, three rollers 34 also move from the second roller guide member 26 to the first roller guide member 12, and one roller 34 extends from the second roller guide member 26 to an end roller chain. The sprocket wheel 15 is reached.

  In this embodiment, since it is also detected that the water stop panel 10 has reached the fully closed position by the rotary encoder described above, electric control is performed under the control of the control device to which a signal from the rotary encoder is input. The reverse drive of the motor 19 is stopped.

  In this embodiment, the fully closed position and the fully open position of the water stop panel 10 are detected by the rotary encoder in this way. However, the fully closed position and the fully open position of the water stop panel 10 are detected, for example, You may make it carry out by the sensor etc. which were arrange | positioned at the moving path | route of the water panel 10, or the edge part of this moving path | route.

  Moreover, in this embodiment, as FIG.2, FIG4 and FIG.9 shows, the outer surface of the water stop panel 10 facing the outer side of the entrance 2 of the ground structure 1 is shown in the water stop panel 10. Rollers 40 are rotatably attached via bracket members 41 at the upper portions of the left and right end portions of the left and right ends of the water-stop panel guide member 11 corresponding to these rollers 40, and the entrance / exit of the ground structure 1. An inclined portion 11 </ b> A that is inclined downward toward the inner side of 2 is provided. For this reason, immediately before the water stop panel 10 reaches the fully closed position, the water stop panel 10 moves to the inside of the entrance / exit 2 by the roller 40 being guided by the inclined portion 11A.

  For this reason, the water stop panel moving means for moving the water stop panel 10 to the inside of the entrance / exit 2 immediately before the water stop panel 10 reaches the fully closed position is constituted by the roller 40 and the inclined portion 11A.

  And in this embodiment, as FIG. 4 shows, in the inner surface of the water stop panel 10 which faces the inner side of the entrance / exit 2, the location corresponding to the inner surface of the guide member 11 for water stop panels, The portion corresponding to the outer surface 3B of the uppermost step portion 3A of the staircase 3 described above and the road surface 42 which is a mating member with which the water stop panel 10 abuts when the water stop panel 10 reaches the fully closed position. Watertight seal members 43, 44, 45 are attached to the lower surface. For this reason, when the water stop panel 10 reaches the fully closed position while moving the water stop panel 10 to the inside of the entrance / exit 2 by the water stop panel moving means, the action of these water tight seal members 43, 44, 45 The lower part of the entrance / exit 2 is sealed watertight by the water stop panel 10.

  Thereby, the water by heavy rain etc. can prevent flowing into the underground facility from the entrance / exit 2 of the ground structure 1.

  In the above description, the inside of the entrance / exit 2 is the side where it is desired to prevent water from entering.

  According to the present embodiment described above, the roller chain 24 that is a flexible string-like member is not a loop-like endless member, but is an endless string-like member, Since the number of sprocket wheels 15 for the end roller chain that is a rotating member for moving the end roller chain 24 to open and close the water stop panel 10 may be one per end roller chain 24. The structure of the entire water stop device can be simplified.

  In addition, the roller chain 24 is used as an end member in this way, and as a result, the end roller chain 24 is moved by forward and reverse rotation of the end roller chain sprocket wheel 15 which is a rotating member. Even if a region where a compressive force acts on the end roller chain 24 from the sprocket wheel 15 is generated because the portion 10 opens and closes a part of the entrance / exit 2, this region is bent and deformed. Since the portion 25A is blocked by the bending deformation preventing means 25 which sandwiches at least three rollers 31 arranged in the length direction of the end roller chain 24, the roller chain is caused by the compressive force in this region. 24 can be moved to open and close the water stop panel 10.

  The bending deformation preventing means 25 according to the present embodiment shown in FIGS. 6 and 7 has a pair of sandwiching portions 25A sandwiching at least three rollers 31 arranged in the length direction of the end roller chain 24. However, the bending deformation prevention means may sandwich at least two links 30 adjacent to each other in the length direction of the end roller chain 24.

  In other words, the bending deformation prevention means causes the end roller chain 24 to be horizontally or substantially horizontal across at least three pins 32 disposed at intervals in the length direction of the end roller chain 24. It only needs to have a pinching portion for pinching from the orthogonal direction, and this causes the end roller chain 24 to bend and deform around the pin 32, in other words, the end roller chain 24 to be bent and deformed. I can stop.

  In addition, rollers 33 and 34 are attached to the end roller chain 24 of the present embodiment, and these rollers 33 and 34 and the first roller guide member 12 extending in the vertical direction and the horizontal direction or substantially horizontal. In order to be guided by the second roller guide member 26 extending in the direction, the movement of the end roller chain 24 for opening and closing the water stop panel 10 is guided by the first and second roller guide members 12 and 26. The action can be performed smoothly.

  The second roller guide member 26 shown in FIG. 8 has guide portions 26A on the upper and lower sides. However, the second roller guide member is used for placing the rollers 33 and 34 in a rollable manner. It may have only the lower guide portion.

  FIG. 14 is a front sectional view showing the internal structure of the water blocking panel guide member 111 and the end roller chain 124 according to another embodiment, and FIG. 15 is a sectional view taken along line S15-S15 in FIG. As shown in these drawings, the end roller chain 124 includes a roller 135 between two pins 132A and 132B that connect the end roller chain 124 to the side surface of the water stop panel 10. It is attached so that it can rotate freely. This attachment is performed by extending the end portion of one pin 132D among the plurality of pins constituting the end roller chain 124 and rotatably disposing the roller 135 at the extended end portion. The pin 132D is not connected to the water stop panel 10.

  A shelf portion 111 </ b> A is provided inside the water stop panel guide member 111. The left and right end portions of the water stop panel 10 are inserted and housed in the water stop panel guide member 111, and the roller 135 is placed on the shelf 111A when the water stop panel 10 reaches the fully closed position. It has become. For this reason, the shelf 111A is a receiving portion for receiving a part of the end roller chain 124 between the two pins 132A and 132B.

  A portion of the end roller chain 124 to which the roller 135 is attached is a portion that is a slack portion 124C as in the above-described embodiment, and when the roller 135 is placed on the shelf portion 111A, the slack portion 124C. Can drastically droop downward, and for example, it is possible to effectively prevent the slack portion 124C from reaching the road surface 42 which is a mating member with which the water stop panel 10 contacts when fully closed.

  When the end roller chain 124 is moved by the rotation of the sprocket wheel 15, the roller 135 is guided by the first and second roller guide members 12 and 26.

  In each embodiment described above, the water stop panel 10 is formed with an opening that is cut downward from the upper side of the water stop panel 10 and opened upward, and the water stop panel 10 is fully closed. The opening may be opened and closed by a door that can be opened from the staircase 3 side of the ground structure 1. According to this, even if the water stop panel 10 is fully closed, a person who has gone up the stairs 3 can cross the water stop panel 10 by opening the door and straddling the opening. .

  Moreover, each embodiment described above was a case where the opening part at least partially opened / closed by the opening / closing body is the entrance / exit 2 of the ground structure 1, but this ground structure is a subway station. It may be a building such as a building that is unrelated to or related to the underground facility, and the ground structure is, for example, on a road to prevent water from entering the site with a water stop panel. It may be installed on an adjacent site as a gate or wall together with an open / close door. Further, when the opening / closing device according to the present invention is a water stop device, the water stop device may be used, for example, to prevent water from entering or from the road.

  Each embodiment can also be applied to an apparatus that suppresses water from entering inside an opening such as an entrance and exit, that is, allows water to enter to the extent that there is no hindrance.

  INDUSTRIAL APPLICABILITY The present invention can be used as a water stop device for preventing the inflow of water from an opening, a shutter device installed on a truck bed or the like.

DESCRIPTION OF SYMBOLS 1 Ground structure 2 Entrance / exit which is an opening part 10 Water stop panel 11/111 which is an opening / closing body Guide member 12 for water stop panel which is a guide member for opening / closing bodies 12 Guide member 15 for 1st rollers 15 Sprocket wheel 24 which is a rotating member, 124 Ended roller chain which is an end-like string-like member 24A An extending portion having a vertical component 24B An extending portion having a horizontal component 24C A slack portion 25 A bending deformation preventing means 25A A sandwiching portion 26 A second roller guide member 30 Roller chain link 31 Roller chain roller 32 Roller chain pin 32A, 32B Pin connecting water stop panel and roller chain 33, 34 Roller 111A Shelf as receiving part

Claims (12)

An opening / closing body that can be opened and closed, a flexible string-like member connected to the opening / closing body, and a rotating member around which the string-like member is wound are configured to rotate. In the opening / closing device in which the opening / closing body opens / closes at least a part of the opening by the movement of the string-like member by forward / reverse rotation of the member,
The string-like member is an end member, and the string-like member has a region where a compressive force acts from the rotating member to move the opening / closing body, and this region is bent and deformed. An opening / closing device comprising a bending deformation preventing means for preventing.   The switchgear according to claim 1, wherein the string-like member is wound around the rotating member between both ends in the length direction of the string-like member, and extends in two directions from the rotating member. The opening / closing apparatus characterized in that the region where the compressive force acts from the rotating member is present at one of the extending portions of the cord-like member.   The switchgear according to claim 1 or 2, wherein the string-like member is wound around the rotating member between both ends in the lengthwise direction of the string-like member, and the two directions from the rotating member. These stretching directions of the stretched string-like member are converted by the rotating member, and one of the stretching directions is a direction having a vertical component, and the other stretching direction. Is a direction having a horizontal component, and the region where the compressive force acts from the rotating member is present at an extending portion having the horizontal component.   4. The opening / closing device according to claim 3, wherein the string-like member is connected to the opening / closing body at two portions separated in a moving direction of the opening / closing body, and the string-like member between these connecting portions. The natural length dimension of the opening / closing body is larger than the distance dimension between the two connecting portions, and one of the two connecting portions at the extending portion having the vertical component. When the connecting portion reaches the rotating member first by the movement of the string-like member and reaches the extending portion having the horizontal component, the compression force is applied to the string-like member from the rotating member. An opening / closing device characterized in that the region that acts is generated.   5. The opening / closing apparatus according to claim 4, wherein the opening / closing body closes at least a part of the opening when the two connecting portions reach the extending portion having the vertical component. Opening and closing device characterized by.   6. The opening / closing apparatus according to claim 5, wherein a part of the opening / closing body when at least a part of the opening is closed is housed inside a guide member for the opening / closing body. apparatus.   The opening / closing apparatus according to claim 6, wherein a receiving portion for receiving a part of the string-like member between the two connecting portions is provided in the opening / closing body guide member. Opening and closing device.   The switchgear according to any one of claims 4 to 7, wherein the other connecting portion of the two connecting portions is one end portion of the both end portions of the string-like member, At least one roller is attached to the string-like member between the connecting portion and the other end of the both ends of the string-like member, and a roller guide member for guiding this roller An opening / closing device comprising:   The switchgear according to any one of claims 1 to 8, wherein the string-like member is a chain.   The switchgear according to claim 9, wherein the chain is a roller chain in which links adjacent to each other in the length direction of the chain are connected by a pin having a roller rotatably fitted on the outer periphery. The opening / closing apparatus according to claim 1, wherein the bending deformation preventing means is means for preventing the roller chain from bending and deforming around the pin.   11. The opening / closing apparatus according to claim 10, wherein the axial direction of the pin is a horizontal direction or a substantially horizontal direction, and the bending deformation prevention means arranges the roller chain at an interval in the length direction of the roller chain. An opening / closing device comprising a pinching portion for pinching from at least three pins provided in the horizontal direction or a direction perpendicular to the horizontal direction. The switchgear according to any one of claims 1 to 11, wherein the switchgear is a water stop panel for preventing water from flowing in from the opening.

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