JP2022045707A - Sliding door device - Google Patents

Abstract

To provide a sliding door device with a maintenance panel that takes operability of an operator into consideration even when a maintenance panel is removed, for example, in inspection operation for sliding door device in view of conventional problem points.SOLUTION: A maintenance panel of a sliding door device is fastened and fixed at a normal position, and the sliding door device comprises a fall preventive lock piece for preventing the maintenance panel from falling when unfastened on one of an entrance/exit opening frame body side and a maintenance panel side, and a lock piece engaging the fall preventive lock piece on the other side, and also comprises a lock retaining piece retaining the maintenance panel temporarily at a maintenance position on one of the entrance/exit opening frame body side and maintenance panel side, and an engagement piece engaging the lock retaining piece on the other side.SELECTED DRAWING: Figure 7

Description

The present invention is a sliding door device installed in an opening used as an entrance / exit in a building, and mainly relates to a configuration of a maintenance panel of the sliding door device.

As a sliding door device that can open and close an entrance / exit opening provided on a wall surface or the like, at least a rail member that is a fixing member, a sliding door that is suspended via a hanging metal fitting suspended from the rail member, and a sliding door device. A sliding door device including a maintenance panel that can be opened to conceal a mechanical part such as a hanging metal fitting and to maintain the sliding door device is provided.
In addition to such sliding door devices, there are devices that automatically open and close the sliding doors using electricity, and the electric motors and control boards in such automatic sliding door devices are usually concealed by maintenance panels. Has been done.

Such a maintenance panel is configured so that the maintenance panel does not easily fall, and when the sliding door device is inspected, parts are replaced, adjusted, etc., it can be removed from the normal use state or flipped up and opened. By doing so, the part that is normally hidden is exposed.
For example, in Patent Document 1, the maintenance panel (inspection cover 15) is removed, and in Patent Document 2, the maintenance panel (cover plate 11) is flipped up.
Since the maintenance panel is usually installed above the entrance / exit opening, the removed maintenance panel needs to be replaced on the floor surface or the like, which is troublesome.
Further, in the case where the maintenance panel is flipped upward, the flipped maintenance panel is located above the worker's head, so that the worker can easily hit the head during the work.
Further, when the ceiling surface is in the immediate vicinity, there is a problem that the maintenance panel cannot be sufficiently opened.

Japanese Patent No. 3627131 Japanese Patent No. 2927735

In view of the conventional problems, it is an object of the present invention to provide a sliding door device with a maintenance panel in consideration of the operator's operability even when the maintenance panel is removed for inspection work of the sliding door device. do.

Therefore, in order to solve the above problems, the present invention is configured as a first means for a sliding door device that movably closes an entrance / exit opening such as a wall surface, and the sliding door device is installed at the entrance / exit opening. It consists of a doorway opening frame, at least a rail member, a sliding door that can be slid open and closed on the rail member, a maintenance opening for adjusting the sliding door device, and a maintenance panel that closes the maintenance opening. The installation position of the maintenance panel can be selected from the normal position where the maintenance opening is closed and the maintenance position where the maintenance opening is exposed. The maintenance position is a position lower than the normal position and the maintenance opening. It is configured so that it can be temporarily installed in the sliding door device at a position close to.

Next, in order to solve the above problems, the place where the present invention is configured as the second means is that the maintenance panel is fastened and fixed at the normal position of the maintenance panel in addition to the place where the maintenance panel is configured as the first means. The sliding door device is provided with a fall prevention locking piece that prevents the maintenance panel from falling when the fastening is released, on either the entrance / exit opening frame side or the maintenance panel side, and engages with the fall prevention locking piece on the other side. A locking holding piece that temporarily holds the maintenance panel at the maintenance position is provided on either the doorway opening frame side or the maintenance panel side, and the other side is engaged with the locking holding piece. It was configured to have a piece.

According to the invention according to claim 1, since the maintenance panel can be temporarily installed in the sliding door device at a position lower than the normal position and near the maintenance opening, maintenance of the sliding door device can be performed. Occasionally, after the maintenance person removes the maintenance panel, the maintenance panel can be installed at the maintenance position with the maintenance opening exposed as it is. Therefore, it is not necessary to perform an operation such as placing the maintenance panel removed by the maintenance person on the floor, and it is easy to set up the work.

According to the second aspect of the present invention, in addition to the above effects, the maintenance panel does not inadvertently fall when the fastening means for fixing the maintenance panel is released when the maintenance panel is removed. In addition, the fall prevention function is performed by engaging the fall prevention locking piece and the engaging piece, and the holding function is also performed by engaging the fall prevention locking piece and the engaging piece. Is possible.

Front view from the indoor side (maintenance side) of the usage state of the sliding door device of the present invention. Front view from the indoor side with the maintenance panel of the sliding door device of the present invention removed. Partial enlarged cross-sectional view taken along line AA in FIG. BB line enlarged cross-sectional view of FIG. Enlarged vertical cross section of the maintenance panel attachment / detachment process Enlarged vertical cross section with the maintenance panel fall prevention function activated Enlarged vertical cross section when the maintenance panel is in the maintenance position Perspective view of fall prevention locking member Perspective view of maintenance panel Enlarged vertical cross section when the maintenance panel is in the simple maintenance position

An sliding door device in which the maintenance panel can be selected between a normal position for closing the maintenance opening and a maintenance position where the maintenance opening is exposed will be described below based on an embodiment.

Hereinafter, Example 1 will be described with reference to the drawings.
In FIG. 1, reference numeral 1 indicates a sliding door frame.
As shown in FIGS. 3 and 4, the sliding door frame 1 includes a door tail side vertical frame 13 and a door end side vertical frame 14 fixed to a steel frame 11 ... Between the upper end of the door tail side vertical frame 13 and the door end side vertical frame 14, the upper reinforcing material 10 and the upper reinforcing material 10 are arranged on the steel frame 11 ... On the building side via the L metal fittings 12 ... At the lower part, it is formed in a gate shape from a rail mounting member 15 arranged between the door tail side vertical frame 13 and the door end side vertical frame 14.

Then, between the door tail side vertical frame 13 and the door end side vertical frame 14, the indoor side middle frame 3 and the outdoor side middle frame 30 are both on the indoor side (maintenance side in the embodiment) and the outdoor side of the upper reinforcing material 10. The upper end is fixed to the inside, and it is arranged at a predetermined distance between the indoor side and the outdoor side.
For convenience, one side is described as the indoor side and the other side is described as the outdoor side, but it goes without saying that the maintenance side for performing maintenance or the like may be either the indoor side or the outdoor side.
However, usually, the maintenance side is often set as the indoor side in consideration of the design of the building side, and in the following description, the maintenance side will be described as the indoor side.
Hereinafter, the space between the door butt side vertical frame 13 and the indoor side middle frame 3 is the door pocket indoor side, the space between the door butt side vertical frame 13 and the outdoor middle frame 30 is the door pocket room outside, and the door pocket indoor side and the door pocket room outside are combined to form the door pocket side. , The space between the vertical frame 14 on the door end side and the middle frame 3 on the indoor side is the doorway indoor side, the space between the vertical frame 14 on the door front side and the middle frame 30 outside the room is the outside of the doorway room, and the room side of the doorway and the outside of the doorway room are combined with the doorway side. say.

In FIG. 3, reference numeral 5 indicates a rail material that is detachably connected to the inner surface of the rail mounting material 15 on the indoor side.
Reference numeral 6 indicates a sliding door suspended from the rail material 5, reference numeral 16 indicates a base material fixed over the entire width of the floor surface on the inspection and fixing door pocket side, and reference numeral 17 indicates an entrance / exit side of the base material 16. It shows a guide roller that is rotatably provided at the end and is attached so as to project slightly toward the entrance / exit side between the outdoor inner frame 30 and the indoor inner frame 3.
In FIGS. 1 and 2, reference numeral 4 ... Indicates a base rail arranged at a predetermined interval in the vertical direction on both sides of the door pocket room side and the door pocket room outside.
In FIGS. There is.
Reference numeral 20 indicates an outdoor upper frame connected to the lower end of the outdoor rammer base panel 19 and installed between the door end side vertical frame 14 and the outdoor middle frame 30.

The sliding door frame 1 (including the rail material 5), the base material 16, the indoor side middle frame 3, the outdoor middle frame 30, the base rail 4 ..., the indoor side upper frame 7, the outdoor side rammer base panel 19, the room. The outer upper frame 19 is constructed by the time the interior finish (pasting of decorative board, cloth, etc.) is performed, and after the interior finish is completed, the sliding door 6 is opened from the maintenance opening at the lower part of the indoor upper frame 7. It is suspended from the rail material 5 to check the sliding of the sliding door 6 and adjust the closing speed. The above is the outline of the sliding door device of the present invention.

Hereinafter, each member will be described in detail.
As shown in FIG. 4, the door tail side vertical frame 13 approaches each other from the entrance / exit side surface 131, the indoor side surface 133, the outdoor side surface 132, and the ends of the indoor side side surface 133 and the outdoor side side surface 132 on the building side on the steel frame 11 side. It is formed in a substantially U-shape in cross section from the connecting protrusions 134 and 134 protruding in a predetermined dimension in the direction.
Then, as shown in FIG. 2, the rail mounting material fixing seat 135 is fixed to the upper part of the entrance / exit side surface 131.

As shown in FIG. 4, the door end side vertical frame 14 is provided with fixing members 141 ... With a predetermined interval in the vertical direction on the steel frame 11 side on the building side, and is provided on the indoor side in the entrance / exit direction. The indoor side door foresight 145 that protrudes to conceal the entrance / exit side end surface of the decorative board 100 on the indoor side, and the outdoor door foresight that protrudes outward in the same entrance / exit direction to conceal the entrance / exit side end surface of the outdoor decorative board 100. It is formed in a substantially U-shape flatter than the door stop portion 147 in which the closing recess is provided in the vertical direction at the attachment portion 146 and the portion where the door end side end portion of the sliding door 6 is located.
The upper end position of the indoor side door front finding portion 145 is set to a position corresponding to the height of the maintenance panel 90, which will be described later, with respect to the upper end position of the outdoor door front finding portion 146.

Then, as shown in FIG. 2, the joint material 148 on the L-shaped side in a plan view is fixed to the surface of the indoor side door tip finding portion 145 facing the door tail side vertical frame 13.
The joint material 148 is set to a height equivalent to the height of the maintenance panel panel 90, and when the maintenance panel 90 is normally installed, a gap between the indoor side door front finding portion 145 and the side end portion of the maintenance panel 90 is provided. It is for hiding.
Further, on the indoor side surface of the joint material 148, two fixing holes for attaching the fall prevention locking member 8, which will be described later, are provided in the vertical direction.
Further, the rail mounting material fixing seat 149 is fixed between the indoor side door tip finding portion 145 and the outdoor side door leading finding portion 146 above the door tip side vertical frame 14.

As shown in FIG. 3, the rail mounting member 15 includes an upper surface plate 151, an indoor side hanging projectile 152 in which the indoor side end of the upper surface plate 151 hangs down, and an outdoor side in which the outdoor side end of the upper surface plate 151 hangs down. At the outdoor side of the hanging projectile 153, the lower support portion 154 having an L-shaped cross section connected to the lower end of the outdoor hanging projectile 153, the sub-top plate 155 in close contact with the lower surface of the top plate 151, and the sub-top plate 155. It is composed of a hanging piece 156 and a rail material mounting portion 157 having an L-shaped cross section connected to the lower end of the hanging piece 156.
Then, the rail material 5 is detachably connected to the indoor side of the vertical surface of the rail material mounting portion 157.

In the rail mounting material 15, the door end side vertical frame 14, the door end side vertical frame 13, and the upper reinforcing material 10 are assembled in a gate shape, and the door end side vertical frame 14 is fixed while checking the verticality, levelness, and the like. After the members 141 ..., the connecting projecting pieces 134 of the door rail side vertical frame 13, and the upper reinforcing material 10 are welded and connected to the steel frame 11 on the building side via the L metal fittings 12 ... It is fixed to the rail mounting material fixing seat 149 of the door end side vertical frame 14 and the rail mounting material fixing seat 135 of the door tail side vertical frame 13 with bolts and nuts.

As shown in FIGS. 2 and 3, the base material 16 is provided on the fixed surface 161 located at the full width of the floor surface on the door pocket side, and on the indoor side (maintenance side) and outdoor side (fixed side) ends of the fixed surface 161. The rising surfaces 162 and 162 formed, the L-shaped base board receiving surfaces 163 and 163 formed to protrude inward from the rising surfaces 162 and 162, and the fixed surface 161 projecting toward the doorway side at the doorway side end. A guide roller mounting member 164 that rotatably holds the guide roller 17 fitted in the guide groove 60 formed on the lower end surface of the sliding door 6 is fixed on the upper surface thereof.
The entrance / exit side end of the guide roller mounting member 164 is fixed to the floor surface with anchor bolts, and the entrance / exit side end of the base material 16 is connected to the inner surface of the indoor side middle frame 3 and the outdoor side middle frame 30. Further, the end portion on the door tail side is connected to the vertical frame 13 on the door tail side and fixed to the floor surface.

As shown in FIGS. 2 to 4, the indoor side middle frame 3 has an upper end portion screwed and connected to the indoor side of the upper reinforcing material 10, a reinforcing frame 31 located on the inner surface side, and an end on the entrance / exit side of the reinforcing frame 31. It is composed of an indoor side outer frame 36 located on the indoor side from the portion.
Then, the indoor side outer frame 36 protrudes to the indoor side and hides the entrance / exit side end portion of the indoor side door pocket decorative board 100, and the indoor side middle frame finding portion 32 and the door pocket side end of the indoor side middle frame finding portion 32. A decorative board support portion 33 that protrudes from the portion in the direction of the door tail side vertical frame 13 and to which the indoor side door pocket decorative board 100 is attached, and an L-shaped door from the end portion of the decorative board support portion 33 on the door tail side vertical frame 13 side. It is formed from a base rail connecting portion 34 that protrudes in the direction of the vertical frame 13 on the buttock side and is connected by inserting a projecting piece 43 at the end of the base rail 4 ... It is connected with and erected.

Then, as shown in FIGS. 2 and 3, the joint material 37 on the L-shaped side in a plan view is fixed to the surface of the indoor side outer frame 36 facing the door end side vertical frame 14.
The joint material 37 is set to a height corresponding to the height of the maintenance panel panel 90, and is for hiding the gap between the indoor side outer frame 36 and the side end portion of the maintenance panel 90 when the maintenance panel 90 is normally installed. belongs to.
Further, on the indoor side surface of the joint material 37, two fixing holes for attaching the fall prevention locking member 8, which will be described later, are provided in the vertical direction as in the joint material 148.

As shown in FIG. 8, the fall prevention locking member 8 is formed by a plate-shaped fixing piece 81 having fixing holes 811 and 811, and once projecting from the upper end of the fixing piece 81 toward the room side and projecting upward at the protruding end. It is composed of a fall prevention locking piece 82. The reason why the fixing holes 811 are provided at two places is that the fall prevention locking member 8 can be used for both the door end side and the door pocket side.
Four fall prevention locking members 8 of the same type are prepared, and fixing pieces 81 are attached to the indoor side surfaces of the joint material 148 of the door end side vertical frame 14 and the joint material 37 of the indoor side middle frame 3. They are brought into contact with each other and are screwed and fixed to the fixing holes (not shown) of the joint material 148 and the fixing holes 37a and 37a of the joint material 37 using the fixing holes 881.
As shown in FIG. 3, the fixed fall prevention locking member 8 is installed apart from each other in the vertical direction.

As shown in FIGS. 3 and 4, the outdoor middle frame 30 has an upper end screwed to the outdoor side of the upper reinforcing material 10 and is connected to the outdoor side of the lower end portion of the base reinforcing portion 155 at the lower end thereof. It is composed of an outdoor reinforcing frame 301 located on the inner surface side to be screwed and connected from the outside, and an outdoor outer frame 306 located on the outdoor side from the end of the outdoor reinforcing frame 301 on the entrance / exit side.
The outdoor outer frame 306 is an outdoor middle frame finding portion 302 and an outdoor middle frame finding portion 302 that protrudes outward from the entrance side end of the outdoor reinforcing frame 301 and hides the entrance side end of the outdoor door pocket decorative board 100. The doors of the outdoor decorative board support portion 303 and the outdoor decorative board support portion 303, which project from the inner surface side end portion of the middle frame finding portion 302 toward the door tail side vertical frame 13 and to which the outdoor decorative board decorative board 100 is attached. A room that protrudes in an L-shape from the end of the vertical frame 13 on the buttock side in the direction of the vertical frame 13 on the buttock side, and the projecting piece 43 at the end of the outdoor middle frame 30 side of the base rail 4 ... Is inserted and connected. It is formed from the outer base rail connecting portion 304, and the lower end portion is connected to the base material 16 and erected.

As shown in FIG. 2, the base rail 4 is composed of a substrate surface portion 41 and upper and lower flange portions 42, 42 in which the upper and lower end portions of the substrate surface portion 41 are bent into an L shape, and the indoor side middle frame 3 and the chamber. A protruding piece 43 is provided at the end on the outer middle frame 30 side, and as described above, the indoor side middle frame 3 and the outdoor middle frame are provided in the gap provided between the flange portions 42, 42 and the thrust piece 43. The base rail connecting portion 34 and the outdoor base rail connecting portion 304 of 30 are inserted, and the substrate surface portion 41 is screwed and connected to the door tail side vertical frame 13 and arranged at a predetermined interval in the vertical direction.

As shown in FIG. 3, the outdoor rammer base panel 19 has an L-shaped upper connecting protrusion 192 formed on the upper end of the outdoor surface substrate 191 and the lower end of the outdoor surface substrate 191 on the outdoor side. It is composed of a lower projecting piece 193 formed by projecting.
Then, the outdoor upper frame 20 is connected to the lower projecting piece 193, and the outdoor upper frame 20 has an outdoor upper frame finding portion 21 having a U-shaped cross section projecting to the outdoor side and an outdoor upper frame finding portion. The lower end portion of the 21 is extended toward the indoor side and protrudes upward at the extended end, and is formed to have a left-right length that fits between the door end side vertical frame 14 and the outdoor middle frame 30.

As shown in FIG. 3, the indoor upper frame 7 has a U-shaped indoor upper frame finding portion 71 having a U-shaped cross section and a mounting piece hanging from the upper end of the indoor upper frame finding portion 71. It is formed of 72 and has a left-right length that fits between the vertical frame 14 on the door end side and the middle frame 3 on the indoor side.
The maintenance panel holding plate 73 on the L-shaped side is fixed near the center of the upper frame finding portion 71 on the indoor side in the left-right direction.
The indoor side upper frame 7 has a mounting piece 72 installed on the indoor side surface of the upper reinforcing material 10, and is fixed with screws.

As shown in FIG. 3, the rail material 5 is arranged from the vicinity of the door end side end of the rail material mounting portion 157 of the rail mounting material 15 to the vicinity of the door pocket portion end, and mainly includes the outer member 51 and the inner. It is a ball bearing type slide rail composed of a member 54, a ball retainer 52, and a plurality of balls 53. The inner member 54 of the rail material 5 slides from the door end side to the door pocket side, and the suspension bracket 55 is fixed to the inner member 54.

A doorway opening is formed by the door end side vertical frame 14, the indoor side middle frame 3, the indoor side upper frame 7, the outdoor middle frame 30, the outdoor outer upper frame 20, and the maintenance panel 90 of the sliding door device configured as described above. An entrance / exit opening frame body is formed, and an opening between the door end side vertical frame 14 and the outdoor middle frame 30, an opening from the outdoor floor surface to the lower surface of the outdoor upper frame 20, the door end side vertical frame 14 and the indoor side middle. An opening is defined as an entrance / exit opening between the frames 30 and from the floor surface of the room to the lower surface of the maintenance panel 90.
Then, with the maintenance panel 90 removed, the opening formed between the door end side vertical frame 14 and the indoor side middle frame 3, from the lower surface of the indoor side upper frame 7 to the same height as the lower surface of the outdoor side upper frame 20. The space is open as a maintenance opening 9.
The maintenance opening 9 is used not only for suspending the sliding door 6 but also for adjusting / replacing the brake device when the sliding door 6 is closed, attaching / detaching the rail material 5, and the like.
Further, as shown in FIG. 10, in the case of an automatic opening / closing type sliding door device that automatically opens / closes the sliding door 6 with an electric motor or the like, a drive unit such as an electric motor or a drive unit is placed at a position facing from the maintenance opening 9. A control unit or the like for controlling is installed, and periodic inspections, electrical opening / closing adjustments, and parts replacement are performed from the maintenance opening 9.
The maintenance opening 9 is usually concealed by a maintenance panel 90, and the maintenance panel 90 is removed during maintenance.

The sliding door 6 suspended from the hanging bracket 55 has a panel shape in which hanging fittings 61 and 61, which are hanging tools for the sliding door 6, are provided on the upper end surface at a position corresponding to the hanging portion of the hanging bracket 55. A guide groove 60 through which the guide roller 17 is inserted is formed in the opening / closing direction of the lower end surface (shown in FIG. 3). A door stop member 600 (shown in FIG. 4) located in the door stop portion 147 of the frame 14 is provided so as to project in the direction of the door end side vertical frame 14.
Then, the sliding door 6 aligns the hanging metal fittings 61 and 61 with the hanging portion of the hanging bracket 55 of the rail material 5 from the maintenance opening 9, and suspends the sliding door 6 via the hanging pins 56 and 56.
Further, with the sliding door 6 suspended, the opening / closing speed of the sliding door 6 is confirmed, and the opening / closing speed is adjusted as necessary.
In addition, optional members such as a fully open stopper 62, a brake device 63, and a free stopper device are attached from the maintenance opening 9.

As shown in FIGS. 3 and 9, the maintenance panel 90 has a plate-shaped front closing portion 91 having a size capable of concealing the maintenance opening 9, and an L-shaped protrusion upward at the upper end portion of the front closing portion 91. The insertion piece 92, the lower closing portion 93 that protrudes outward at the lower end of the front closing portion 91 and is formed in an L shape so as to protrude upward at the protruding end, and the outdoor side from both ends of the front closing portion 91. It is composed of projecting side plates 94, 94 and engaging members 95, 95 attached to both ends of the upper end portion of the outdoor surface, which is the back surface of the front closing portion 91.
A fixing through hole 931 for fixing the maintenance panel is provided near both ends of the lower surface of the lower closed portion.

The engaging member 95 is formed in a downward U-shape, and is engaged to project downward from the lower surface of the insertion piece 92 at a position separated from the outdoor surface side, which is the back surface of the front closing portion 91, to the outdoor side. It is provided with a piece 951.

Next, a method of attaching the maintenance panel 90 will be described.
First, the panel mounting seats 96 and 96 having screw holes on the lower surface are screwed to the vicinity of the lower ends of the joint material 148 of the door end side vertical frame 14 and the joint material 37 of the indoor side middle frame 3. The joint material 148 and the joint material 37 are provided with fixing holes corresponding to the screwing.
Then, as shown in FIG. 5, the maintenance panel 90 is such that the upper part of the maintenance panel 90 is tilted toward the maintenance opening 9 at the maintenance opening 9, and the insertion piece 92 is placed on the indoor side of the indoor upper frame 7. It is inserted between the frame finding portion 71 and the maintenance panel holding plate 73, and the maintenance panel 90 is pushed up so as to be vertical. At this time, since the insertion piece 92 and the engagement piece 951 are open to the extent that the insertion piece 92 and the engagement piece 951 can be inserted between the upper fall prevention locking 82, 82 and the lower surface side of the indoor side upper frame finding portion 71, the insertion piece. 92 can be inserted.
Then, when the maintenance panel 90 is pushed up to a predetermined height, the screw holes of the panel mounting seat 96 come to face from the fixing through holes 931 and 931. Therefore, the maintenance panel 90 is fixed with the set screws 900 and 900. The maintenance panel 90 is fixed in this state, and this state is the normal position of the maintenance panel 90 in the sliding door device.

Next, a method of removing the maintenance panel 90 at the time of maintenance of the sliding door device will be described.
Loosen and remove the set screws 900 and 900 that secure the maintenance panel 90. Then, the maintenance panel 90 is pulled downward so that the insertion piece 92 of the maintenance panel 90 is pulled out from between the indoor side upper frame finding portion 71 and the maintenance panel holding plate 73 of the indoor side upper frame 7.
When the insertion state of the insertion piece 92 is released, the maintenance panel 90 can be removed from the mounting procedure and the sliding door device.
However, in the process of pulling the maintenance panel 90 downward, the maintenance panel 90 may be dropped if it is vigorously lowered.
Therefore, in the product of the present invention, when the maintenance panel 90 is lowered too much from the state where the insertion piece 92 is released, the engagement piece 951 of the maintenance panel becomes the upper fall prevention locking piece as shown in FIG. It engages with the 82 and the maintenance panel 90 is hooked on the fall prevention locking piece 82. Therefore, it is possible to prevent the maintenance panel 90 from falling.
Further, if the set screws 900 and 900 are loosened, the maintenance panel 90 may come down due to its own weight. Even in that case, since the fall prevention locking piece 82 and the engaging piece 951 are engaged, the maintenance panel does not fall carelessly.

Next, a method of installing the maintenance panel 90 at the time of maintenance of the sliding door device will be described.
The maintenance panel 90 is temporarily removed by reversing the procedure for attaching the maintenance panel 90.
Then, the lower fall prevention locking member 8 of the fall prevention locking members 8 and 8 attached to the joint material 148 of the door end side vertical frame 14 and the joint material 37 of the indoor side middle frame 3 apart from each other in the vertical direction. The left and right ends of the insertion piece 92 of the maintenance panel 90 and the engagement pieces 951 and 951 are inserted between the upper side and the fall prevention locking member 8 from the indoor side.
When the maintenance panel 90 is lowered in this state, as shown in FIG. 7, the fall prevention locking piece 82 of the lower fall prevention locking member 8 and the engagement piece 951 of the maintenance panel 90 engage with each other.
Therefore, the maintenance panel 90 is temporarily installed between the door end side vertical frame 14 and the indoor side middle frame 3 with the maintenance opening 9 facing, and this state is the maintenance position of the maintenance panel 90.

In this way, the maintenance position is close to the normal position, and the maintenance panel 9 is suspended downward from the vicinity of the lower part of the maintenance opening 9, so that the operator is on the lower side close to the normal position. After removing the maintenance panel 90, it is possible to replace it in the maintenance position without getting off the stepladder or the like, so that workability is good.
Further, the fall prevention locking member 8 may be the same member on the upper and lower sides, and the engagement piece 951 uses the same member at both the normal position and the maintenance position. It is possible to have the function of maintenance position.

In particular, in the case of an automatic opening / closing type sliding door device, regular inspections are often performed, and since multiple inspections may be performed in a day, after removing the maintenance panel 90 as in the product of the present invention. If the maintenance panel 90 can be installed at the maintenance position by the worker as it is, the burden on the worker can be reduced.
Further, in the case of an automatic opening / closing type sliding door device, only the control unit may be operated as an adjustment, and the fall prevention locking member 8 is provided in a plurality of stages (three stages in FIG. 10) in the vertical direction as shown in FIG. By locking the maintenance panel 9 at the intermediate portion, it is possible to install the maintenance panel at a simple maintenance position where only the control unit faces the maintenance opening 9. As described above, the fall prevention locking member 8 can be appropriately set according to the specifications of the sliding door device.
In addition, compared to the flip-up type maintenance panel, there is a margin in the overhead space of the worker, so that the burden on the worker can be reduced.

Such maintenance panels can be used not only for sliding door devices, but also for multiple sliding door devices, folding door devices, swing door devices, and the like.

1 Sliding door frame 10 Upper reinforcing material 13 Door tail side vertical frame 14 Door tip side vertical frame 145 Indoor side door front finding part 146 Outdoor outside door finding part 148 Joint material 149 Rail mounting material Fixed seat 15 Rail mounting material 16 Base material 17 Guide roller 19 Outdoor rammer base panel 20 Outdoor upper frame 3 Indoor side middle frame 31 Reinforcing frame 32 Indoor side middle frame finding part 33 Decorative board support part 34 Base rail connecting part 36 Indoor side outer frame 37 Joint material 37a Fixing hole 30 Outdoor middle frame 4 Base rail 5 Rail material 6 Sliding door door 60 Guide groove 600 Door stop member 61 Hanging bracket 7 Indoor side upper frame 71 Indoor side upper frame finding part 72 Mounting piece 72 Maintenance panel holding plate 8 Fall prevention staff Stop member 81 Fixing piece 811 Fixing hole 82 Fall prevention locking piece 9 Maintenance opening 90 Maintenance panel 91 Front closing part 92 Inserting piece 93 Lower closing part 931 Fixed through hole 94 Side plate 95 Engaging member 951 Engaging piece 96 Panel mounting seat 900 set screw

Claims (2)

A sliding door device that freely closes an entrance / exit opening such as a wall surface, and the sliding door device is suspended from an entrance / exit opening frame body installed at the entrance / exit opening, at least a rail member, and a rail member so as to be slidable to open / close. It consists of a sliding door, a maintenance opening for adjusting the sliding door device, and a maintenance panel that closes the maintenance opening. The maintenance panel is installed at the normal position that closes the maintenance opening and the maintenance opening is exposed. The maintenance position can be selected from the maintenance position, and the maintenance position is characterized in that it can be temporarily installed in the sliding door device at a position lower than the normal position and close to the maintenance opening. Sliding door device. In the normal position of the maintenance panel, the maintenance panel is fastened and fixed, and the sliding door device is provided with a fall prevention locking piece that prevents the maintenance panel from falling when the fastening is released, either on the doorway opening frame side or on the maintenance panel side. The other side is provided with an engaging piece that engages with the fall prevention locking piece, and the locking holding piece that temporarily holds the maintenance panel at the maintenance position is placed on either the doorway opening frame side or the maintenance panel side. The sliding door device according to claim 1, further comprising an engaging piece that engages with the locking holding piece on the other side.

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