JP2020056251A - Opening/closing device - Google Patents

Abstract

To provide an opening/closing device comprising an opening/closing body with enhanced wind-pressure resistance against wind pressure from other area side across an opening.SOLUTION: An opening/closing device comprises an opening/closing body 3 opening and closing an opening 2 formed on a building. The opening/closing body is configured to be in a closing mode for closing the opening and in an opening mode for opening the opening. In the closing mode, the opening/closing body is configured to extend upward and downward to close the opening. In the opening mode, the opening/closing body is configured to extend along a ceiling of one area 6 across the opening to open the opening. The opening/closing body 3 comprises a plurality of panels arranged in line in a moving direction of the opening/closing body. The adjacent panels are connected to each other with a hinge. At least one panel of the plurality of panels (such as an upper panel 10A) comprises a plurality of reinforcement bodies on one area-6-side surface of the panel. The plurality of reinforcement bodies (such as an upper-side reinforcement body 20 and a lower-side reinforcement body 21) is arranged at intervals in the moving direction S of the opening/closing body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a structure of a panel constituting an opening / closing body of an opening / closing device called an oversliding door or an overhead door.

An opening / closing device called an oversliding door or an overhead door is known (see Patent Literature 1 and the like).
In the opening and closing device, an opening and closing body that opens and closes the opening of the structure extends in the vertical direction and closes the opening, and extends along the ceiling on the ceiling side of one area separated from the opening. The opening state is set to open the opening.
The above-described opening / closing body includes a plurality of panels provided so as to be arranged in the moving direction of the opening / closing body, a reinforcing body provided so as to protrude from one surface side of each panel, and a left and right side of each panel. And a guide roller provided so as to protrude outward from the side edge.
A plurality of panels provided so as to be arranged along the moving direction of the opening / closing body have adjacent panels connected to each other via hinges.
Each panel has a long side extending along the left-right direction (width direction) of the opening and a short side extending along the width direction of the opening and a short side extending along the up-down direction (height direction) of the opening. It is formed in a long rectangular shape.

JP 2017-214745 A

Each panel constituting the opening / closing body of the opening / closing device described above has a reinforcing member only on one end (lower end) side in the opening / closing direction of the opening / closing body on a surface on one region side of the panel.
However, in the opening / closing body having the reinforcing body only on one end (lower edge) side in the opening / closing direction of the opening / closing body on the surface on one region side of each panel, the opening / closing body that closes the opening has an opening. However, there is a problem that the wind pressure resistance against the wind pressure from the other area side separated from the other is low.
In particular, the wind force applied to the open / closed body in the closed state from the other area side separated by the opening becomes stronger at a higher position from the ground according to a known wind pressure formula. In the panel located at the uppermost side, there is a problem that the wind pressure resistance against the wind pressure from the other area side is reduced.

  SUMMARY OF THE INVENTION In order to solve the above-described problems, the present invention provides an opening / closing device including an opening / closing body having improved wind pressure resistance against wind pressure from the other region side across an opening.

The opening and closing device according to the present invention includes an opening and closing body that opens and closes an opening formed in the structure, and the opening and closing body is set to a closed state that closes the opening and an open state that opens the opening. The opening / closing member is set in a state in which the opening / closing member extends in the vertical direction to close the opening, and in the open state, the opening / closing member extends along the ceiling of one of the regions separated from the opening to open the opening. An opening / closing device to be set, wherein the opening / closing body is provided with a plurality of panels provided so as to be arranged in a direction of movement of the opening / closing body, and adjacent panels are connected via a hinge, and That at least one of the panels has a plurality of reinforcements on a surface on one side of the panel, and that the plurality of reinforcements are provided at intervals along the moving direction of the opening / closing body. Because it is a feature, the other Possible to provide a switchgear having a movable member with improved resistance to wind pressure strength against wind pressure from the band side.
Further, the panel located on the uppermost end side of the open / close body in the closed state is provided with a reinforcing body on the upper end side of the surface on one side and the other end side on the side on the one side. Therefore, the wind pressure resistance of the panel located at the uppermost position in the closed state of the opening / closing body can be improved.
Further, the panel located at the lowermost end of the open / close body in the closed state has a reinforcing body on the lower edge side of the surface on the one area side and on the center side between the upper end and the lower edge of the surface on the one area side. With this feature, it is possible to improve the wind pressure resistance of the panel located at the lowermost position in the closed state of the opening / closing body.
Further, since the reinforcing member is provided so as to protrude from the surface of the panel on one side and extend in the left and right direction of the panel and the one side corresponding to the width direction of the opening, the opening is formed. It is possible to further improve the wind pressure resistance of the opening / closing body against the wind pressure from the other side of the separated area.
Further, since the reinforcing member is formed of a hollow material, the material cost can be reduced, and an opening / closing member having a high-strength reinforcing member can be provided.

FIG. 3 is an overall configuration perspective view of the opening / closing device when the opening / closing body is in a closed state. FIG. 2 is a perspective view of the entire configuration of the opening / closing device when the opening / closing body is in an open state. The front view which looked at the opening-and-closing body of a closed state from the one area | region side. FIG. 3 is a side view of the opening / closing body in a closed state. FIG. 5 is a vertical cross-sectional view showing an upper panel located on the uppermost end side of the opening / closing body in a closed state. FIG. 5 is a vertical cross-sectional view showing an intermediate panel positioned at the center of the opening / closing body in a closed state. FIG. 4 is a vertical cross-sectional view showing a lower panel positioned at the lowermost end of the opening / closing body in a closed state.

  As shown in FIGS. 1 and 2, an opening / closing device 1 according to the embodiment includes an opening / closing body 3 that opens and closes an opening 2 formed in a structure, a guide unit 4 that guides movement of the opening / closing body 3, and an opening / closing body. And an opening / closing mechanism 3 for opening and closing the opening 2, when the opening / closing body 3 opens the opening 2, the opening / closing body 3 is positioned along the ceiling on the ceiling side of one region 6 across the opening 2. It is a so-called oversliding door or an opening and closing device called an overhead door or the like, which is in a closed (stored) state.

The opening 2 is formed in a frame 7 such as an outer wall that partitions the inside and the outside of a structure such as a house, a building, a warehouse, and a factory, and an inner wall that partitions an internal space inside the structure. For example, a rectangular opening (a rectangular opening 2 shown by a dashed line in FIGS. 1 and 2) provided to extend in the direction.
The one area 6 separated by the opening 2 is the inside of the structure or the inside of the structure, and is, for example, an area in a parking lot of a house or a building, in a factory, in a warehouse, or the like.
The other area separated from the opening 2 is outside the structure or outside the structure, and is, for example, an area outside a parking lot of a house or a building, outside a factory, outside a warehouse, or the like.

The opening / closing body 3 is set to a closed state in which the opening 2 extends in the vertical direction to close the opening 2, and an open state in which the opening 2 extends along the ceiling near the opening 2 in one region 6 to open the opening 2. You.
That is, as shown in FIG. 1, in the closed state, one end (upper end) 3 t of the opening / closing body 3 extending in the vertical direction is located above the opening 2, and the other end (lower end) of the opening / closing body 3. 3 u is brought into contact with the lower end of the opening such as the floor surface or the ground, and the opening / closing body 3 is set in a state of closing the opening 2.
As shown in FIG. 2, in the open state, one end 3 t of the opening / closing body 3 is located on the ceiling side away from the opening 2 on the ceiling side of the one area 6 across the opening 2. With the other end 3u of 3 being located above the opening 2, the opening / closing body 3 extends along the ceiling of one area 6 in a direction away from the opening 2 from above the opening 2, The opening 2 is set to be open.

  In the open state, the opening / closing body 3 extends horizontally from the other end 3u to the one end 3t on the ceiling side of the one area 6 as shown in FIG. From one to one end 3t.

  As shown in FIGS. 1 and 3, the opening / closing body 3 includes a panel structure 10 formed by a plurality of panels provided so as to be arranged in a moving direction (opening / closing direction) S of the opening / closing body 3 and each panel. And a reinforcing body provided so as to protrude from the surface on the side of the one region 6 and extend in the left-right direction W of the panel (the direction along the long edge of the panel (the width direction of the opening 2)) and the one region 6. And a guide roller 30 provided to protrude outward from left and right side edges of each panel.

  As shown in FIGS. 3 and 4, the panel structure 10 that forms the opening / closing surface of the opening / closing body 3 includes, for example, an upper panel 10 </ b> A positioned at the uppermost end side of the opening / closing body 3 in a closed state, and an opening / closing state in a closed state. It comprises a lower panel 10B located at the lowermost end of the body 3, and a plurality of intermediate panels 10C, 10C,... Provided between the upper panel 10A and the lower panel 10B.

  As shown in FIG. 3, each of the panels 10A, 10B, and 10C includes a panel main body 11, a frame 12 surrounding four sides of the panel main body 11, and a frame reinforcing member 13, respectively.

The panel main body 11 extends along the left-right direction (width direction) of the opening 2 and has a long side corresponding to the width dimension of the opening 2 and a short side extending along the up-down direction (height direction) of the opening 2. It is formed in a long rectangular shape that is long in the left-right direction.
As shown in FIGS. 5 to 7, the panel main body 11 is formed in a cross-sectional shape, for example, in an uneven shape that is continuous in the vertical direction. That is, the panel main body 11 is constituted by a concavo-convex panel provided with a flat surface 11a protruding in one region 6 and extending in the left-right direction and a flat surface 11b protruding in the other region and extending in the left-right direction.
As described above, since the panel body 11 is formed of the high-strength concavo-convex panel, the wind pressure resistance of each of the panels 10A, 10B, and 10C can be improved.

As shown in FIG. 3, the frame 12 is composed of an upper frame 15 provided along an upper long side edge serving as one end edge of the panel main body 11 and a lower long side edge serving as the other end edge of the panel main body 11. , And left and right vertical frames 17, 18 provided along the left and right short sides of the panel body 11, respectively. It is a frame surrounding four sides of the panel body 11.
Therefore, each of the panels 10A, 10B, and 10C extends along the left-right direction (width direction) W of the opening 2 and extends along the long side corresponding to the width dimension of the opening 2 and the up-down direction (height direction) of the opening 2. It is formed in a long rectangular shape that is long in the left-right direction and has a short side that extends.

The frame reinforcing member 13 is a reinforcing member such as a reinforcing bar connecting the upper frame 15 and the lower frame 16 on the side facing the one region 6 of the panel main body 11, and is provided on the long side edge of the panel main body 11. Along the longitudinal direction (longitudinal direction) of the opening 2, i.e., in the left-right direction (lateral width direction).
As shown in FIGS. 5 to 7, the frame reinforcing member 13 includes a main plate portion 13x which is located on one area 6 side, and whose upper end is connected to the upper frame 15 and whose lower end is connected to the lower frame 16, A reinforcing plate portion 13a extending from one side edge of the portion 13x to the other region side, and a connection extending from an extended end of the reinforcing plate portion 13a and facing the flat surface 11a of the panel body 11 and connected to the flat surface 11a. And a plate portion 13b.
That is, the upper ends of the main plate portions 13x of the plurality of frame reinforcing members 13 are fixed to a surface 15a located on one side 6 of the upper frame 15 of the upper panel 10A by fixing means such as rivets (not shown). The lower end side of the main plate portion 13x of the member 13 is fixed to a surface 16a located on the one area 6 side of the lower frame 16 of the upper panel 10A by a fixing means such as a rivet (not shown). The plate portion 13b is fixed to the flat surface 11a on one side 6 of the panel main body 11 by fixing means such as rivets (not shown).

As shown in FIG. 5 to FIG. 7, the upper frame 15 is provided on the surface 15 a on one area 6 side where the upper end side of the main plate portion 13 x of the frame reinforcing member 13 is connected, and on the other area side, and 15b, which clamps the upper edge 11t of the upper surface, and an upper surface 15c which connects the upper end of the surface 15a and the upper end of the clamping portion 15b. The left end is connected to the left vertical frame 17, and the right end is the right vertical frame. 18.
The holding portion 15b is composed of two holding pieces that branch downward from a long edge located on the other region side of the upper surface 15c.
As shown in FIG. 5, the upper surface 15 c of the upper frame 15 of the upper panel 10 </ b> A is formed on an upper plane where the other area is located above, and is formed on a lower plane where one area 6 is located below. The long side edge on the one side 6 of the upper plane and the long side edge on the other side of the lower side plane are formed as a concavo-convex engagement surface formed by being connected by an inclined surface.
As shown in FIGS. 6 and 7, the upper surface 15c of the upper frame 15 of the intermediate panel 10C and the lower panel 10B is formed on a lower plane in which the other area is located below, and one area 6 is located above. A concave / convex engaging surface formed by connecting a long side edge of one area 6 of the lower plane and a long side edge of the other side of the upper plane with an inclined surface, which is formed on the upper plane positioned at Is configured.

As shown in FIG. 5 to FIG. 7, the lower frame 16 is provided on the surface 16 a on one side 6 to which the lower end side of the main plate portion 13 x of the frame reinforcing member 13 is connected, and on the other side of the panel body 11. And a lower surface 16c connecting the lower end of the surface 16a and the lower end of the holding portion 16b. The left end is connected to the left vertical frame 17, and the right end is the right vertical frame. 18.
The holding portion 16b is composed of two holding pieces that branch upward from the long side edge located on the other area side of the lower surface 16c.
As shown in FIG. 5 and FIG. 6, the lower surface 16c of the lower frame 16 of the upper panel 10A and the intermediate panel 10C is formed on a lower plane where the other area side is located below, and one area 6 side is located above. The long side edge of one side 6 of the lower side plane and the long side edge of the other side of the upper side plane are connected to each other by an inclined surface. Have been.

As shown in FIG. 7, the lower surface 16c of the lower frame 16 of the lower panel 10B is formed in a plane connecting the lower end of the surface 16a and the lower end of the holding portion 16b. 25 are provided.
That is, the lower end of the lower panel 10B serving as the other end 3u of the opening / closing body 3 is formed by a drainer seal 25 made of hollow rubber or the like provided on the lower surface 16c of the lower frame 16, and when the opening / closing body 3 is closed. Then, the drain seal 25 comes into close contact with the lower end of the opening such as the floor or the ground, and the watertightness and airtightness between the other end 3u of the opening and closing body 3 and the lower end of the opening are maintained.

The upper panel 10A has, on the surface on the one region 6 side, one end side (upper edge side) along the moving direction S of the opening / closing body 3 and the other end side (lower edge side) along the moving direction S of the opening / closing body 3, It has a reinforcement.
For example, as shown in FIGS. 3 to 5, the upper panel 10 </ b> A extends from a surface 15 a located on the one area 6 side of the upper frame 15 of the upper panel 10 </ b> A in the left-right direction W of the upper panel 10 </ b> A and the one area 6. The upper reinforcement body 20 is provided so as to extend from the surface 16a located on the one region 6 side of the lower frame 16 of the upper panel 10A to the left and right direction W of the upper panel 10A and the one region 6. And a lower reinforcing member 21.

  The upper reinforcing body 20 includes a hollow plate portion 20a having a plate surface extending from the surface 15a of the upper frame 15 perpendicular to the surface 15a to one region 6 and extending in the left-right direction W of the upper panel 10A. A solid plate portion 20b extending from the leading edge of the plate portion 20a on the one region 6 side and having a plate surface orthogonal to the plate surface of the hollow plate portion 20a is provided.

The intermediate panel 10C includes a reinforcing member on the other end side (lower end side) along the movement direction S of the opening / closing body 3.
For example, as shown in FIGS. 3, 4, and 6, the intermediate panel 10 </ b> C is separated from the surface 16 a of the lower frame 16 of the frame 12 that surrounds the panel main body 11 of the intermediate panel 10 </ b> C on one side 6 of the lower panel 16. And a lower reinforcing body 21 provided so as to extend in the left-right direction W and one region 6.

  The lower reinforcing body 21 of the upper panel 10A and the intermediate panel 10C extends from the surface 16a of the lower frame 16 to one region 6 orthogonal to the surface 16a and extends in the left-right direction W of the panel main body 11. A hollow plate portion 21a provided with a solid plate portion 21b having a plate surface extending from the leading edge of one side 6 of the hollow plate portion 21a and orthogonal to the plate surface of the hollow plate portion 21a. I have.

  A screw head housing for accommodating a screw head of a screw 28a for connecting a mounting plate of a hinge 31 described later to the hollow plate portion 21a in the hollow plate portion 21a of the lower panel 21 of the upper panel 10A and the intermediate panel 10C. A groove 28 is formed. The screw head housing groove 28 is formed on the lower surface of the hollow plate portion 21a so as to be continuous over the left end and the right end of the lower surface. The screw head housing groove 28 is formed into the screw head housing groove 28 from the left end or the right end of the lower surface. By inserting the screw head, the screw 28a is moved to the mounting position of the hinge 31, and as shown in FIG. 4, the shaft of the screw 28a is passed through the screw through hole formed in the mounting plate of the hinge 31, so that the nut 28b Can be attached to the lower surface of the hollow plate portion 21a.

The lower panel 10B includes a reinforcing member on the other end side (lower end side) of the opening / closing body 3 along the moving direction S and on the center side between one end and the other end of the opening / closing body 3 along the moving direction S. I have.
That is, as shown in FIGS. 3, 4, and 7, the lower panel 10 </ b> B is lower than the surface 16 a of the lower frame 16 surrounding the panel main body 11 of the lower panel 10 </ b> B on one side 6 of the lower frame 16. And the lower reinforcing member 22 provided to extend in the left-right direction W and one region 6 of the lower panel 10B and attached to the main plate portion 13x of each frame reinforcing member 13. And a center reinforcing member 23 provided to extend.

  The lower reinforcing member 22 includes a plate portion 22a having a plate surface extending from the surface 16a of the lower frame 16 perpendicularly to the surface 16a to one region 6 and extending in the left-right direction of the panel main body 11; A plate portion 22b extending from the leading edge on the one region 6 side of the portion 22a and having a plate surface orthogonal to the plate surface of the plate portion 22a.

  The central reinforcing member 23 has a hollow plate portion 23 a having a plate surface orthogonal to the plate surface of the main plate portion 13 x of the frame reinforcing member 13, and connects the hollow plate portion 23 a to the plate surface of the main plate portion 13 x of the frame reinforcing member 13. And a connecting plate portion 23b for performing the connection.

  The lower reinforcing member 22 and the central reinforcing member 23 of the lower panel 10B have, for example, a projecting length in the direction of one region 6 such that the lower reinforcing member 22 and the central reinforcing member 23 do not easily hit the leg of the operator who opens and closes the opening and closing member 3. 20 and the lower reinforcing member 21 are formed to be shorter than the projecting length in the direction of the one region 6.

A plurality of panels 10A, 10B, and 10C provided so as to be arranged along the movement direction S of the opening and closing body 3 are connected to each other via hinges 31 and 32.
As shown in FIG. 3, the panels adjacent to each other along the movement direction S of the opening / closing body 3 are connected at their left and right ends by hinges 32, 32. Are connected by hinges 31, 31... At a plurality of places spaced apart along the direction, so that the surface of one of the panels adjacent to one another along the moving direction S of the opening / closing body 3 and the other are adjacent to each other. The angle between the panel and the surface on the one region 6 side can be set to 180 degrees or less.

  That is, the panel structure 10 provided so as to be arranged along the moving direction of the opening / closing body 3 is such that the long side of one of the panels adjacent to each other and the long side of the other panel are hinges 31 as connecting means, The panel surfaces of the panels connected to each other via the pin 32 and adjacent to each other can be set to a state where they are located on the same plane and a state where they intersect with each other.

In the case of the description of the closed panel structure 10 shown in FIGS. 3 and 4, the vertically adjacent panels are specifically connected as follows.
The lower end of the surface on the one area 6 side of the left vertical frame 17 located on the left end side of the upper panel, and the one area 6 of the left vertical frame 17 located on the left end side of the lower panel. The upper surface of the side surface is connected by a hinge 32.
The lower end of the surface on the one side 6 side of the right vertical frame 18 located on the right end side of the upper panel, and the one area 6 on the right vertical frame 18 located on the left end side of the lower panel. The upper surface of the side surface is connected by a hinge 32.
Each frame reinforcement provided at a predetermined interval along the left-right direction of the lower surface of the hollow plate portion 21a of the lower reinforcement 21 provided on the upper panel and the surface on the one region 6 side of the lower panel. The upper ends of the members 13, 13,... Are connected by a plurality of hinges 31, 31,.

Further, as shown in FIG. 4, an engaging uneven surface forming the lower surface 16c of the lower frame 16 of the upper panel 10A and the upper surface 15c of the upper frame 15 of the intermediate panel 10C located below the upper panel 10A are formed. The upper panel 10 </ b> A and the intermediate panel 10 </ b> C are connected by hinges 31 and 32 in a state where the engaging concave and convex surfaces are engaged with each other.
Further, the engaging uneven surface forming the lower surface 16c of the lower frame 16 of the intermediate panel 10C and the engaging uneven surface forming the upper surface 15c of the upper frame 15 of the intermediate panel 10C located adjacent to the lower part of the intermediate panel 10C. In a state where they are engaged with each other, the intermediate panel 10C and the intermediate panel 10C are connected by hinges 31 and 32.
Further, the engaging uneven surface forming the upper surface 15c of the upper frame 15 of the lower panel 10B and the engaging uneven surface forming the lower surface 16c of the lower frame 16 of the intermediate panel 10C located on the upper side of the lower panel 10B. The lower panel 10B and the intermediate panel 10C are connected by hinges 31 and 32 in a state where they are engaged with each other.

The guide rollers 30 are provided at both ends in the left-right direction (longitudinal direction) W of each of the panels 10A, 10B, 10C.
The guide roller 30 has a rotating shaft portion rotatably mounted on a bearing portion provided at an end portion of the panel in the left-right direction W and a distal end side of a rotating shaft portion protruding outward from a longitudinal edge of the panel. And a roller configured to be able to roll on a guide surface in the concave portion of the guide means 4.
Therefore, the opening / closing member 3 can be moved in the moving direction S of the opening / closing member 3 by the guide roller 30 provided on each panel being guided in the moving direction S by the guide means 4.

The guide means 4 is provided along each of the left and right side edges of the opening 2.
The guide means 4 is a rail formed in a U-shape in cross section. The guide means 4 includes a vertical guide portion 41 provided on a side portion of the opening 2 and an opening 2 from the upper end side of the opening 2 on the ceiling side of the one area 6. The upper guide 43 is provided so as to extend in a direction away from the upper guide 43, and an arc-shaped guide 42 connecting the upper end of the vertical guide 41 and the open end of the upper guide 43.
An opening / closing body 3 is provided movably in a direction of opening or closing between a pair of guide means 4 and 4 provided on the left and right edge sides of the opening, and the opening / closing body 3 is provided between the vertical guide portion 41 and the upper guide portion 43. The opening / closing body 3 opens or closes the opening 2 by moving between them.

  As shown in FIG. 1, the opening / closing mechanism 5 includes, for example, a rotating shaft 51 disposed over the opening 2 in the width direction of the opening 2, and a pair of windings fixed to both ends of the rotating shaft 51. One end of the drum 52 is connected to the take-up drum 52 and the other end is connected to the opening / closing body 3. The rotary shaft 51 rotates to be taken up or taken out of the take-up drum 52. For example, a connecting member 53 such as a metal wire and an urging member 54 for urging the rotating shaft 51 in a direction in which the connecting member 53 is wound by the winding drum 52, that is, in a direction in which the opening / closing body 3 is opened. Prepare.

  The rotating shaft 51 is a hollow or solid shaft, has a length substantially equal to the distance between the pair of guide means 4 and 4, and extends in the width direction of the opening 2 above the upper end of the opening 2. It will be extended. The rotating shaft 51 is rotatably supported by a plurality of bearing brackets 56 attached to the frame 7.

The winding drum 52 is a bobbin-shaped (cylindrical) member capable of winding and unwinding the connecting member 53, and the center axis of the winding drum 52 and the center axis of the rotating shaft 51 are concentric. Is fixed to both ends of the rotating shaft 51 as described above.
The take-up drum 52 is a member that rotates with the rotation shaft 51 to take up the connecting member 53 on the outer peripheral surface, or that the connecting member 53 pays out from the outer peripheral surface. More specifically, the winding drum 52 winds up the connecting member 53 when the opening / closing body 3 performs the opening operation, and unwinds the connecting member 53 when the opening / closing body 3 performs the closing operation.

  The connecting member 53 has one end fixed to the outer peripheral surface of the winding drum 52 and the other end fixed to the lower end of the opening / closing body 3. The connecting member 53 may be a member that can be wound on the winding drum 52, and may be, for example, a metal chain or chain, a substantially string-shaped or substantially band-shaped member made of a material other than metal. .

As the urging member 54, for example, a torsion spring (torsion spring) is used. After the rotation shaft 51 is passed through the hollow cylindrical portion of the torsion spring, one end of the torsion spring is fixed to the outer peripheral surface of the rotation shaft 51, and the other end of the torsion spring is fixed to the frame 7.
The torsion spring is provided so as to bias the rotating shaft 51 in a direction in which the connecting member 53 is wound.
That is, the urging member 54 has a function of assisting the opening operation of the opening / closing body 3 by the operator, and when the opening / closing body 3 is fully opened, the opening / closing body 3 positioned on the upper guide section 43 is moved upward. Has the function of retaining on top.

When the operator lifts the closed state of the opening / closing body 3 and performs an opening operation of opening the opening 2, the operator sequentially moves from the panel located at the top of the opening / closing body 3 to the upper guide portion 43 so as to bend one by one. . Then, as the opening operation continues, the opening / closing body 3 moves to the upper guide portion 43, and the opening 2 is fully opened.
On the other hand, when closing the opening 2, the operator pulls down an operation unit such as a lowering string (not shown) to which the lower panel 10 </ b> B is attached, thereby pulling down the opening / closing body 3 along the vertical guide 41. Perform closing operation. When the opening / closing body 3 is closed, of the plurality of panels on the upper guide 43, the panel located on the opening 2 side sequentially moves to the vertical guide 41. Then, as the closing operation continues, the opening / closing body 3 moves to the vertical guide portion 41, and the drain seal 25 provided at the lower end of the lower panel 10B located at the lowermost portion contacts the opening lower end of the floor surface, the ground, or the like. Then, the opening 2 is completely closed.

  In the above description, an opening / closing mechanism in which an operator manually opens and closes the opening / closing body 3 is exemplified as the opening / closing mechanism 5, but an opening / closing mechanism that rotates the rotating shaft 51 via a chain hoist mechanism (not shown), A configuration including an opening / closing mechanism for rotating the rotating shaft 51 by a driving source such as a motor (not shown) may be used.

According to the embodiment, the opening / closing body 3 is configured such that the upper panel 10 </ b> A is provided on the upper edge side of the surface on the one area 6 side so as to extend in the left-right direction W of the panel and the one area 6. Therefore, when the opening / closing body 3 is set to the closed state, the strength of the upper end portion of the opening / closing body 3 where the force of the wind applied to the opening / closing body 3 from the other area becomes strongest increases. .
That is, it is possible to increase the wind pressure resistance of the upper end portion of the opening / closing body 3 set in the closed state.
Therefore, it is possible to provide the opening / closing device 1 including the opening / closing body 3 having improved wind pressure resistance against wind pressure from the other area side.

The lower panel 10B includes a lower reinforcing member 22 provided along the lower end of the one region 6 side, and a central reinforcing member 23 provided at the center between the upper and lower sides of the one region 6 side. Therefore, the wind pressure resistance of the lower end portion of the opening / closing body 3 set in the closed state can be increased.
In addition, since the lower panel 10B includes the central reinforcing member 23, the bending strength of the panel body is improved when the lower panel 10B collides with the lower end of the opening such as the floor or the ground when the opening / closing body 3 is closed.

  In addition, since the open / close body 3 in the closed state has a configuration in which the lower reinforcing body 21 is provided between panels vertically adjacent to each other, the overall wind pressure resistance of the open / close body 3 set in the closed state is reduced. Can be larger.

  Further, the upper reinforcing member 20, the lower reinforcing members 21, 22 and the central reinforcing member 23 protrude from the surface of the panel on the one region 6 side, and correspond to the lateral direction of the panel corresponding to the lateral width direction of the opening 2 and one of the two. Since it is provided so as to extend to the region 6, it is possible to further improve the wind pressure resistance of the opening / closing body 3 against the wind pressure from the other region side across the opening 2.

  Further, since the upper reinforcing member 20 and the lower reinforcing member 21 of the upper panel 10A and the lower reinforcing member 21 of the intermediate panel 10C are formed of a hollow material, the material cost can be reduced, and a high-strength reinforcing member is provided. The opening / closing body 3 can be provided.

As shown in FIG. 5, the upper reinforcing member 20 may be formed integrally with the upper frame 15, or may be formed separately from the upper frame 15 and then connected to the upper frame 15. The configuration may be as follows.
As shown in FIGS. 5 and 6, the lower reinforcing member 21 may be formed integrally with the lower frame 16, or may be formed separately from the lower frame 16 and then lower. It may be configured to be connected to the frame 16.

In the embodiment, as shown in FIG. 5, the upper frame 15 and the upper reinforcing member 20 of the upper panel 10 </ b> A are configured using an upper integrally molded product in which the upper frame 15 and the upper reinforcing member 20 are integrally formed. Also, an example is shown in which the lower frame 16 and the lower reinforcement 21 of the upper panel 10A are configured using a lower integrally molded product in which the lower frame 16 and the lower reinforcement 21 are integrally formed. I have.
In this case, as shown in FIG. 5, the same upper integrally molded product and lower integrally molded product can be used by symmetrically arranging them vertically, so that the manufacturing cost of the parts can be reduced.
In the embodiment, as shown in FIG. 6, the lower frame 16 and the lower reinforcement 21 of the intermediate panel 10 </ b> C are a lower integrally molded product in which the lower frame 16 and the lower reinforcement 21 are integrally formed. Fig. 4 shows an example configured using the above.

  The intermediate panel 10C has the lower reinforcement 21 only on the lower edge side of the surface on the one region 6 side of the panel. However, the intermediate panel 10C has the lower reinforcement 21 and the panel. A configuration may be adopted in which a central reinforcing body is provided at the center between the upper and lower sides of the surface on the one region 6 side.

  In addition to the above-described upper reinforcing body 20 and lower reinforcing body 21 on the surface on the one region 6 side of the panel, the upper panel 10A has a center on the center between the upper and lower sides on the surface on the one region 6 side of the panel. It is good also as composition provided with the side reinforcement.

1 opening / closing device, 2 opening, 3 opening / closing body, 6 one area, 10A upper panel,
10B lower panel, 10C middle panel, 20 upper reinforcement (reinforcement),
21, 22 lower reinforcement (reinforcement), 23 central reinforcement (reinforcement),
S Moving direction of the opening / closing body, left and right direction of the W panel (width direction of the opening).

Claims (5)

With an opening and closing body that opens and closes the opening formed in the structure,
The opening and closing body is set to a closed state for closing the opening and an open state for opening the opening,
In the closed state, the opening / closing body extends in the vertical direction and is set in a state of closing the opening,
In the open state, the opening and closing body is set to a state in which the opening and closing body extends along the ceiling of one area separated from the opening to open the opening,
The opening / closing body is provided with a plurality of panels provided so as to be arranged along the moving direction of the opening / closing body, and the panels adjacent to each other are connected via a hinge, and are configured.
At least one panel of the plurality of panels includes a plurality of reinforcements on a surface on one side of the panel,
An opening / closing device, wherein a plurality of reinforcing bodies are provided at intervals along a moving direction of the opening / closing body.   The panel located on the uppermost end side of the closed opening / closing body is provided with a reinforcing body on the upper edge side of the one area side surface and the other end side of the one area side face. 2. The switchgear according to 1.   The panel located at the lowermost end of the closed opening / closing body is provided with a reinforcing body on the lower edge side of the one area side surface and the center side between the upper end and the lower end of the one area side surface. The switchgear according to claim 1 or 2, wherein the switchgear is a switchgear.   The reinforcing body is provided so as to protrude from a surface on one side of the panel and extend in the left and right direction of the panel and in one side of the panel corresponding to the width direction of the opening. The switchgear according to any one of claims 3 to 7.   The switchgear according to any one of claims 1 to 4, wherein the reinforcing member is formed of a hollow material.

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