Switching device

Abstract

To provide an opening / closing device opening / closing an opening by an opening / closing body composed of a plurality of panel bodies, which is configured to reduce a gap generated between the panel bodies.SOLUTION: An opening / closing device includes: an opening / closing body 11' composed of a plurality of panel bodies; a guide member 12 for guiding movement of the opening / closing body 11' in the vertical direction and the depth direction; and a hinge section 16 for rotatably joining a first panel body 11A at the top among the panel bodies and a second panel body 11B below the first panel body, the hinge section having a slide mechanism for mutually sliding the first panel body 11A and the second panel body 11B by a specified distance in the direction along the movement direction of the opening / closing body 11'.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present invention relates to an opening / closing device for opening and closing an opening.

Background Art

[0002] As one form of an opening / closing device for opening and closing an opening, there is a device in which an opening / closing body slides in the vertical direction to open and close the opening, represented by a shutter. As one form of such a device in which an opening / closing body slides in the vertical direction, there is an opening / closing device (hereinafter referred to as an "overhead door") called an overhead door or an oversliding door, and technologies related to such an opening / closing device are disclosed in Patent Documents 1 and 2.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In an overhead door, an opening / closing body composed of a plurality of panel bodies moves vertically, and the opening / closing body that has moved upward is held in a horizontal or inclined state. Therefore, in addition to a guide member (such as a guide rail) for guiding the vertical movement of the opening / closing body, a guide member (such as a guide rail) for guiding the movement of the opening / closing body in the depth direction is also provided. The opening / closing body is provided with a guided member (such as a roller) that moves along the guide member (such as a guide rail), and the movement for opening and closing the opening / closing body is guided by these. The guide member is provided with a curved portion as a transition from the vertical direction to the depth direction. However, in cases where the distance between the upper end of the opening and the ceiling is not very large, the curved portion of the guide member 12 may have to be positioned to overlap the upper end of the opening / closing body, as shown in Figure 6. In such cases, in order to prevent the uppermost panel of the opening / closing body from tilting when the opening / closing body is closed, it is necessary to offset the guide member (roller 201) located near the upper end (over the curved portion) toward the interior side, as shown in Figure 6(a). On the other hand, when opening the opening / closing body, that is, when moving the opening / closing body so that it is horizontal (or tilted) at the top, as shown in Figure 6(b), the guided member (roller 201) provided near the upper end is offset, causing the uppermost panel to tilt, and a reverse bend occurs at the joint between the uppermost panel and the next panel. To prevent excessive load from being placed on each member when this reverse bend occurs, a predetermined clearance (gap G shown in Figure 6(a)) is provided between the uppermost panel and the next panel. However, this clearance creates a gap (gap G shown in Figure 6(a)) on the front (design surface) when the opening and closing mechanism is closed, making it difficult to further improve the design of the product.

[0005] In view of the above, the present invention aims to provide an opening and closing device that can reduce the gaps between panels in an opening and closing device that uses an opening and closing body composed of multiple panels to open and close an opening. [Means for solving the problem]

[0006] (Composition 1) An opening / closing device comprising: an opening / closing body composed of a plurality of panel bodies; a guide member that guides the vertical and depth movement of the opening / closing body; and a hinge portion that rotatably connects the uppermost first panel body and the second panel body below it, the hinge portion having a sliding mechanism that slides the first panel body and the second panel body relative to each other by a predetermined distance in a direction along the direction of movement of the opening / closing body.

[0007] (Configuration 2) The opening and closing device according to configuration 1, wherein the sliding mechanism is configured such that the hole through which a mounting member for fastening the hinge portion and the panel body is inserted is a loose-fitting hole formed to allow the mounting member to be loosely fitted.

[0008] (Composition 3) The opening / closing device according to configuration 2, wherein the mounting member is a stepped screw member, and the loose fitting hole is an elongated hole extending in a direction along the direction of movement of the opening / closing body.

[0009] (Composition 4) An opening / closing device according to any one of configurations 1 to 3, comprising a drive unit for driving the opening and closing of the opening / closing body, wherein the drive unit is connected to the first panel body. [Effects of the Invention]

[0010] According to the opening and closing device of the present invention, in an opening and closing device that opens and closes an opening using an opening and closing body composed of multiple panel bodies, it is possible to reduce the gaps that occur between the panel bodies. [Brief explanation of the drawing]

[0011] [Figure 1] Side view showing the opening / closing device of Embodiment 1 [Figure 2] Perspective view showing the movable part of the guided member in Embodiment 1 [Figure 3] Rear view showing the movable part of the guided member in Embodiment 1 [Figure 4] Front view showing the movable part of the guided member in Embodiment 1 [Figure 5]Perspective view showing an enlarged side portion of the upper panel body of the opening / closing device according to Embodiment 1 [Figure 6] Schematic diagram for explaining the operation of a conventional opening / closing device [Figure 7] Schematic diagram for explaining the operation of the opening / closing device according to Embodiment 1 [Figure 8] Perspective view showing the hinge portion provided in the opening / closing device according to Embodiment 2 [Figure 9] Perspective view showing an enlarged side portion of the upper panel body of the opening / closing device according to Embodiment 2 [Figure 10] Schematic diagram for explaining the operation of the opening / closing device according to Embodiment 2

Mode for Carrying Out the Invention

[0012] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. Note that the following embodiments are one form when embodying the present invention, and do not limit the present invention within its scope.

[0013] <Embodiment 1> FIG. 1 is a side view showing the opening / closing device according to Embodiment 1. The opening / closing device 1 of the present embodiment is an opening / closing device that opens and closes an opening formed in a wall surface separating the inside and the outside of a room. More specifically, it is an opening / closing device called an overhead door or an oversliding door. Hereinafter, the vertical direction will be referred to as the "vertical direction", the direction of the width of the opening will be referred to as the "width direction", and the direction orthogonal to these (the direction from the outside to the inside of the room) will be referred to as the "depth direction". Also, in the width direction, the left side when looking from the outside to the inside of the room will be referred to as the left side, and the right side will be referred to as the right side.

[0014] The opening / closing device 1 has, as its general configuration, An opening / closing body 11 in which a plurality of panel bodies are connected to be rotatable relative to each other, Guide members 12 for guiding the movement of the opening / closing body 11 in the vertical direction and the depth direction, and a side structure portion 13 which is a configuration for installing these. An opening / closing drive unit 14 includes a drive device and mechanism for driving the opening and closing of the opening / closing body 11, a control device for controlling the opening and closing operation, and It is equipped with.

[0015] The opening / closing body 11 is constructed by connecting an upper panel body 11A, one or more intermediate panel bodies 11B, and a lower panel body 11C so as to be rotatable with respect to each other (connected by hinges in this embodiment). Multiple panels are arranged in the vertical direction and are positioned so as to partially overlap each other. Furthermore, the panel itself, apart from the parts related to the movable guided member or hinge described below, is not directly subject to the present invention. Since any panel with any configuration, such as those used in conventional overhead doors, can be used, no further explanation of the panel itself will be provided here.

[0016] The opening / closing body 11 is provided with a plurality of rollers at both ends in the width direction, which are guided members guided by a guide member, and the guide member is composed of a guide rail 12 that guides the movement of the rollers. The rollers 202 (see Figure 5, which shows a magnified view of the side of the upper panel body of the opening and closing device) are provided on each of the multiple hinges 204 that rotatably connect each panel body. Each hinge 204 has a hinge shaft and two mounting plates that are pivotally supported by the hinge shaft. The hinge shaft is composed of a shaft cylinder, and the shaft of the roller 202 is inserted through this shaft cylinder to hold the roller 202. In addition, the upper panel body 11A is provided with rollers by the guided member movable part 15, which will be described below. The guide rail 12 has vertical rail sections erected on both sides of the opening, horizontal rail (or inclined rail) sections installed along the ceiling near the ceiling, and curved rail sections connecting the two.

[0017] Any drive device and mechanism for driving the opening and closing of the opening / closing body 11, and any control device for controlling the opening and closing operation can be used. Here, as shown in Figure 1, an example is provided which includes a drive body 141 housing a motor, which is the drive unit, and a control unit for controlling it, a power transmission rail 142 with a toothed belt arranged inside to transmit power, and a winding unit 143 housing a winding drum that winds up the opening / closing body 11 using the transmitted power. The wire wound up by the winding drum is fastened to both sides near the lower end of the opening / closing body 11 (lower panel body 11C). In the opening operation, as the wire is wound up by the winding drum, the opening / closing body 11 is lifted and moves upward along the guide rail 12, and finally moves to a position near the ceiling that is approximately horizontal (or inclined) to the ceiling. The closing operation is the reverse operation. Furthermore, the opening / closing device 1 of this embodiment is equipped with a trolley arm 144 as a mechanism for moving (i.e., opening and closing) the opening / closing body 11 and locking it. One end of the trolley arm 144 is rotatably attached to the opening / closing body (upper panel body 11A), and the other end is configured to be movable along the power transmission rail 142 and to receive power for opening and closing (i.e., it is equipped with a drive unit that drives the opening and closing of the opening / closing body, and the drive unit is connected to the uppermost panel body). With this configuration, the movement of the opening / closing body 11 can be locked by locking the trolley arm 144 so that it cannot move. The locking and unlocking are performed by the drive body unit 141, but an operating unit 145 for unlocking is provided so that the lock can be manually released in the event of a power outage. By pulling the operating unit 145, the connection to the power at the other end of the trolley arm 144 is released, allowing it to move freely. Furthermore, since any conventional mechanisms can be used for the drive device and its mechanism for operating the opening and closing of the opening / closing body, the control device for controlling the opening and closing operation, and the opening / closing lock mechanism and its release mechanism, further detailed explanations are omitted here.

[0018] Figures 2-4 show the movable part 15 of the guided member in Embodiment 1, with Figure 2 being a perspective view, Figure 3 a rear view, and Figure 4 a front view, respectively. As described above, the guided member movable part 15 is a member for attaching the guided member, which is the roller, to the upper panel body 11A. A mounting member 151 is attached to the opening / closing body (upper panel body 11A), A swivel member 152 is pivotally supported on the mounting member 151 and has a rotatable roller that is a guided member, It is equipped with. Note that Figures 2-4 only show the right-side component (the right side when viewing the opening / closing mechanism from the outside, and the left side when viewing it from the inside), but the left side has a similar symmetrical configuration (Figure 5 shows the left side).

[0019] The mounting member 151, in its basic form, has a shape in which both ends of a flat plate are bent at approximately right angles and raised (a shape with side walls on both sides of the flat plate, similar to a C-channel), and holes are formed on the upper side of both side walls through which a shaft cylinder 155 for rotatably connecting the swivel member 152 passes. In addition, a screw hole LH through which a screw for mounting to the opening / closing body (upper panel body 11A) is inserted is formed as an elongated hole. By making it an elongated hole, the vertical mounting position relative to the opening / closing body (upper panel body 11A) can be adjusted. The engaging portion 159 formed on the side of one side wall that contacts the opening / closing body (upper panel body 11A), as can be seen from Figure 5, is a member that abuts against the side surface of the opening / closing body (upper panel body 11A) to position it relative to the opening / closing body (upper panel body 11A).

[0020] The swivel member 152, in its basic form, has a shape in which both ends of a flat plate are bent at approximately right angles and raised (a shape with side walls on both sides of the flat plate, similar to a C-channel), with holes formed on the upper side of both side walls through which the shaft cylinder 156 passes, and holes formed on the lower side through which the shaft cylinder 155 passes.

[0021] The shaft of roller 153 is inserted through shaft cylinder 155, and the roller is held so that it can rotate. The shaft of roller 154 is inserted through shaft cylinder 156, and the roller is held so that it can rotate. The shaft cylinder 155 rotatably connects the swivel member 152 to the mounting member 151, so that the roller 154 attached to the swivel member 152 is also held in a swivel position (to move closer to or further away from the opening / closing body (upper panel body 11A)). On the other hand, the roller 153 is held in a fixed position.

[0022] As can be seen from Figure 6 and other figures, the rollers 202, which are held by hinges 204 that rotatably connect each panel body at both ends in the width direction of the opening / closing body 11, are arranged along the vertical rail section and are therefore lined up in a nearly straight line when viewed from the side. The roller 153 of the guided member movable part 15 is positioned in a substantially straight line with the other rollers 202 when viewed from the side, similar to the rollers 202 described above. On the other hand, the roller 154 of the guided member movable part 15 is held in a position where the members are aligned in a "nearly straight line" as described above, and a position offset from there in the indoor direction, so as to be displaceable between them by the aforementioned oscillating motion. That is, "the uppermost guided member among the multiple guided members is displaceable between a position where the members are aligned in a nearly straight line when viewed from the side, and a position offset from there in the depth direction."

[0023] Figure 6 shows a schematic diagram illustrating the operation of a conventional switchgear. In cases where the gap between the top edge of the opening and the ceiling is not very large, the curved portion of the guide rail 12 may have to be positioned to overlap the top edge (upper panel 11A) of the opening / closing body 200, as shown in Figure 6. In such cases, in order to prevent the upper panel 11A at the top of the opening / closing body 200 from tilting when the opening / closing body 200 is closed, it is necessary to offset the roller 201 (which is located near the upper end and engages with the curved rail section) toward the indoor side, as shown in Figure 6(a). On the other hand, when opening the opening / closing body 200, that is, when moving the opening / closing body 200 so that it is in a horizontal (or inclined) state at the top, as shown in Figure 6(b), the roller 201 provided near the upper end is offset, causing the upper panel body 11A to tilt relative to the next intermediate panel body 11B, resulting in a reverse bend at the joint between the upper panel body 11A and the next intermediate panel body 11B. In this reverse bend, a predetermined clearance (gap G shown in Figure 6(a)) is provided between the upper panel body 11A and the next intermediate panel body 11B to prevent excessive load from being placed on each member. However, this clearance creates a gap (gap G shown in Figure 6(a)) on the front (design surface) when the opening / closing mechanism is closed, making it difficult to improve the design of the product.

[0024] Figure 7 shows a schematic diagram illustrating the operation of the opening / closing device 1 of this embodiment. According to the opening / closing device 1 of this embodiment, as shown in Figure 7(a), when the opening / closing body 11 is closed, the roller 154 of the guided member movable part 15 is displaced from the position where they are aligned "approximately in a straight line" as described above to a position offset in the indoor direction. On the other hand, as shown in Figure 7(b), when the opening / closing body 11 is open, the roller 154 of the guided member movable part 15 is displaced to the position where they are aligned "approximately in a straight line" as described above. In other words, "when the opening / closing body is opened and moves to a position along the guide member that guides movement in the depth direction, the uppermost guided member is configured to be in a position where it is aligned approximately in a straight line with the other guided members in a side view." As can be seen from Figure 7, this configuration prevents the "reverse bending state at the joint between the upper panel and the next intermediate panel" that occurred in the conventional opening and closing device (Figure 6). Therefore, the gap G between the upper panel and the next intermediate panel that was necessary in the conventional opening and closing device (Figure 6) can be eliminated.

[0025] As described above, according to the opening / closing device 1 of this embodiment, in an opening / closing device that opens and closes an opening using an opening / closing body composed of multiple panel bodies, the gaps between the panel bodies can be reduced, and the aesthetic design can be improved.

[0026] Furthermore, a biasing member may be provided to bias the uppermost guided member (roller 154) away from the opening / closing body. For example, in the case of the guided member movable part 15 of this embodiment, in a structure in which the swivel member 152 is rotatably pivoted with respect to the mounting member 151, the swivel member 152 can be biased towards the indoor side by a spring member or the like (for example, by providing a coil spring on the shaft cylinder 155), thereby providing a biasing member that biases the uppermost guided member away from the opening / closing body. By configuring the uppermost guided member (roller 154) to be biased towards the indoor side, when the opening / closing body is closed (as shown in Figure 7(a)), an effect is obtained that causes the upper panel body 11A to be vertical. In this embodiment of the opening / closing device, a trolley arm 144 is provided as a mechanism for moving the opening / closing body 11 (i.e., opening and closing operation) and for locking it. When closing the opening / closing body, the trolley arm 144 provides an effect that pushes the upper panel body 11A to be vertical, so the biasing member described above is not particularly necessary. However, it is useful in configurations without a trolley arm. When providing the biasing member described above, it is preferable to configure it so that the biasing force of the biasing member is less than the load applied to the biasing member by the weight of the panel when the opening / closing body is in the open position. If the biasing force of the biasing member is too strong, when the opening / closing body is in the open position (as shown in Figure 7(b)), there is a risk that the biasing force may cause a "reverse bending state at the joint between the upper panel and the next intermediate panel." However, with the above configuration, the panel is not raised by the biasing force, and thus the "reverse bending state" can be suppressed.

[0027] In this embodiment, the swivel member 152 is rotatably connected to the mounting member 151, thereby making the roller 154 displaceable. However, the present invention is not limited to this, and any mechanism can be adopted in which "the uppermost guided member among a plurality of guided members is displaceable between a position where it is aligned substantially in a straight line with the other guided members in a side view, and a position offset from there in the depth direction." For example, the axis of the roller 154 may be held by an elongated hole that is slidable in the depth direction, thereby making the roller 154 displaceable. In this case, it is advisable to provide a spring that biases the roller 154 toward the indoor side.

[0028] Furthermore, in this embodiment, a roller 153 is provided on the shaft cylinder 155 of the guided member movable part 15 as an example, but the present invention is not limited to this, and the roller 153 may not be present.

[0029] In this embodiment, when the opening / closing body 11 is in the open position, the rollers 154 of the guided member movable part 15 are positioned in a "nearly straight line" (so that each panel body is in a nearly straight line). However, it is also acceptable for the rollers 154 of the guided member movable part 15 to move to a position offset towards the panel body from a "nearly straight line" (in the case where there are no rollers 153). When the roller 153 is absent and the opening / closing body 11 is in the open position, the roller 154 of the guided member movable part 15 moves to a position offset toward the panel body from a "nearly straight" position, which means that a "forward bending state occurs at the joint between the upper panel body and the next intermediate panel body." "Forward bending" is a bending state in the opposite direction to "reverse bending," and is a bending state similar to the movement in which each panel body rotates toward each other by each hinge 204 when the opening / closing body passes through the curved part of the guide rail 12. In the "forward bending" state, a gap is created between the panels, but when the opening / closing body is in the open position (i.e., when the opening / closing body is raised near the ceiling), the gap between the panels does not cause any design problems, so there is no problem. Therefore, the concept in the present invention that "the uppermost guided member is displaceable between a position where it is aligned substantially in a straight line with other guided members in a side view, and a position offset in the depth direction from there" does not preclude the possibility that the uppermost guided member can move beyond the position where it is aligned substantially in a straight line and further offset toward the panel body.

[0030] <Embodiment 2> Embodiment 2 addresses the problem of reduced aesthetic appeal due to the gap G, which is a countermeasure against the "reverse folding state" described above. In this embodiment, instead of the guided member movable part 15 of Embodiment 1, a hinge part 16 is used to rotatably connect the upper panel body 11A and the intermediate panel body 11B below it. The opening and closing device of Embodiment 2 has the same configuration as the opening and closing device 1 of Embodiment 1 in respect to the parts other than the guided member movable part 15 and the hinge part 16. The same reference numerals are used for the same parts as in Embodiment 1, and the explanation herein is simplified or omitted.

[0031] Figure 8 is a perspective view showing the hinge portion 16 provided in the opening and closing device of this embodiment (rollers are not shown). The hinge portion 16 is a hinge portion that rotatably connects the uppermost first panel body (upper panel body 11A) and the second panel body below it (intermediate panel body 11B), and has a sliding mechanism that slides the first panel body (upper panel body 11A) and the second panel body (intermediate panel body 11B) relative to each other by a predetermined distance in a direction along the direction of movement of the opening and closing body.

[0032] The hinge portion 16 of this embodiment includes a shaft cylinder 163 that serves as the hinge axis, and two mounting plates 161 and 162 that are pivotally supported by the shaft cylinder 163. The mounting plate 162 has an elongated hole 165 formed therein, through which a stepped screw 167, which is a mounting member, is inserted, and which extends in a direction along the direction of movement of the opening and closing body. The mounting plate 161 has a hole 164 through which a screw 166, which is a mounting component, is inserted, and which has a different longitudinal direction from the elongated hole 165. The shaft of the roller 168 (not shown in Figure 8) is inserted through the shaft cylinder 163, and the roller 168 is held in a rotatable position.

[0033] Figure 9 is a magnified perspective view showing the side of the upper panel body 11A. As mentioned above, the hinge portion 16 is a hinge that connects the upper panel body 11A and the intermediate panel body 11B, and is attached to both ends of the joint between the two panel bodies (Figure 8 shows the left side, but the right side has a similar symmetrical configuration). The mounting plate 161 of the hinge portion 16 is attached to the intermediate panel body 11B by screws 166, and the mounting plate 162 is attached to the upper panel body 11A by stepped screws 167, thereby connecting the upper panel body 11A and the intermediate panel body 11B in a rotatable manner. In attaching the mounting plate 162 to the upper panel body 11A, the mounting plate 162 and the upper panel body 11A are attached without being tightened by the stepped screws 167, and in addition, the holes 165 through which the stepped screws 167 are inserted are elongated, allowing the two to be attached in a slidable manner. Furthermore, because the elongated hole 164 has a longitudinal direction in the width direction, it is possible to adjust the mounting position in the width direction when installing the hinge portion 16, thereby absorbing errors between parts. The roller mounting member 203 (see Figure 9), which is used in place of the guided member movable part 15 in Embodiment 1, is a member for holding the roller 201 on the upper side of the upper panel body 11A, and as explained in the conventional example in Figure 6, it is a member for fixedly holding the roller 201 at a position offset towards the indoor side (similar to the conventional device).

[0034] Figure 10 shows a schematic diagram illustrating the operation of the opening and closing device of this embodiment. According to the opening and closing device of this embodiment, as shown in Figure 10(a), when the opening and closing body 11' is closed, the upper panel body 11A slides downward relative to the mounting plate 162 due to its own weight (or being pushed by the trolley arm 144 (drive unit)) (that is, the upper panel body 11A slides downward so as to come into contact with the intermediate panel body 11B), and operates in a way that prevents a gap from being created between the two. When the opening operation of the opening / closing body 11 is initiated, as shown in Figure 10(b), the trolley arm 144 (see Figure 1) pulls the upper panel body 11A upward, causing the upper panel body 11A to slide upward relative to the mounting plate 162, creating a gap G between the upper panel body 11A and the intermediate panel body 11B. If the opening operation is continued and the opening / closing body 11' moves to the horizontal (or inclined) rail section, as shown in Figure 10(c), it will be in a "reverse bent state at the joint between the upper panel body and the next intermediate panel body" (the gap G prevents excessive stress from being placed on each component even in the reverse bent state). In this embodiment, the presence of the trolley arm 144 creates a gap G at the stage shown in Figure 10(b). However, in the case where the trolley arm 144 is not present and the lower panel body 11C is pulled up, even if a gap G is not created at the stage shown in Figure 10(b) (no sliding motion occurs), by the stage shown in Figure 10(c), the members will push against each other, resulting in a reverse bending state (sliding motion occurs), thus preventing excessive stress on each member.

[0035] As described above, according to the opening and closing device of this embodiment, in an opening and closing device that opens and closes an opening using an opening and closing body composed of multiple panel bodies, when the opening and closing body is closed (in the state shown in Figure 10(a)), the gaps that occur between the panel bodies can be reduced, and the aesthetic appearance can be improved. Furthermore, it is preferable that the sliding length in the sliding mechanism described above (in the above example, the amount by which the stepped screw 167 can move within the elongated hole 165) is equal to or greater than the gap G (the distance between panel bodies necessary to prevent excessive stress from occurring between each member in the "reverse bent state," i.e., the clearance that prevents stress exceeding a predetermined level from occurring between the upper panel body 11A and the intermediate panel body 11B in the "reverse bent state").

[0036] In this embodiment, an example was given in which the mounting plate 162 attached to the upper panel body 11A has an elongated hole 165 forming the sliding mechanism. However, the present invention is not limited to this, and the elongated hole 165 forming the sliding mechanism may be formed in the mounting plate 161 attached to the intermediate panel body 11B (or the elongated hole 165 may be formed in both the mounting plate 161 and the mounting plate 162). Furthermore, the elongated holes constituting the sliding mechanism may be formed on the panel body side (the upper panel body 11A, the intermediate panel body 11B, or both).

[0037] In this embodiment, the mounting member in the slide mechanism having an elongated hole is a stepped screw, but the present invention is not limited to this, and any member that can be slidably attached to the upper panel body 11A without tightening the two can be used (for example, the tip of a shaft member inserted through both can be secured with a cotter pin). Furthermore, in this embodiment, the hole through which the mounting member in the slide mechanism is inserted is an elongated hole as an example, but the present invention is not limited to this, and when attaching the mounting plate 162 to the upper panel body 11A, it may be a loose fitting hole of any shape that allows the mounting to slide for a predetermined distance in the direction along the movement direction of the opening and closing body.

[0038] In this embodiment, instead of the guided member movable part 15 of Embodiment 1, a roller mounting member 203 similar to that of a conventional device is used as an example. However, the guided member movable part 15 may also be used in this embodiment. Furthermore, the hinge portion 16 may also be used to connect intermediate panel bodies to each other, or to connect an intermediate panel body to a lower panel body.

[0039] In this embodiment, the sliding mechanism is provided as an example in which an elongated hole and a stepped screw inserted therein are used, but the present invention is not limited to this, and any mechanism that can "slide the first panel body (upper panel body 11A) and the second panel body (intermediate panel body 11B) relative to each other by a predetermined distance in a direction along the direction of movement of the opening and closing body" may be used. For example, a member that slides relative to each other in a direction along the direction of movement of the opening and closing body may be provided on a part of the hinge, or a part of the hinge may be formed from an elastically deformable member so that it can expand and contract in a direction along the direction of movement of the opening and closing body.

[0040] In this embodiment, the hinge portion 16 is shown as holding a roller which is the guided member, but the present invention is not limited to this, and the hinge portion 16 may not hold a roller (the roller may be held by another member).

[0041] Furthermore, while each embodiment uses a drive device to automatically open and close the opening / closing body as an example, it may also be possible to operate it manually without a drive device. [Explanation of Symbols]

[0042] 1...Opening and closing device 11...Opening / closing mechanism 11A...Upper panel (first panel) 11B...Intermediate panel (second panel) 12... Guide rail (guide member) 15...Movement of the guided member 151...Mounting parts 152... Swivel component 154...Roller (Guided Member) 16...Hinge section 165... Slotted hole (loose fitting hole) 167...Stepped screw (mounting component) 144...Trolley arm (drive unit)

Claims

1. An opening and closing mechanism composed of multiple panel bodies, A guide member that guides the vertical and depth movement of the opening / closing body, A hinge portion that rotatably connects the uppermost first panel body and the second panel body below it among the plurality of panel bodies, the hinge portion having a sliding mechanism that slides the first panel body and the second panel body relative to each other by a predetermined distance in a direction along the direction of movement of the opening and closing body, Equipped with, An opening and closing device in which the sliding mechanism is configured such that the hole through which a mounting member for fastening the hinge portion and the panel body is inserted is a loose-fitting hole formed to allow the mounting member to loosely fit.

2. The opening / closing device according to claim 1, wherein the mounting member is a stepped screw member, and the loose fitting hole is an elongated hole extending in a direction along the direction of movement of the opening / closing body.

3. The opening and closing device according to claim 1 or 2, comprising a drive unit for driving the opening and closing of the opening and closing body, wherein the drive unit is connected to the first panel body.

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