JP2021134485A - Double floor structure - Google Patents

Abstract

To provide a double floor structure allowing cleaning efficiency to be improved, work load for removing a self-travel floor cleaning device even upon stop at a position other than predetermined self-travel terminate positions to be reduced, and an ordinary floor to be easily renovated to a double floor.SOLUTION: A double floor structure 10 comprises: a floor 12; a resin panel 14 which is placed above the floor 12 and in which a plurality of through-holes 14A are formed; and legs 16 placed on the floor 12 to support the panel 14 from a lower side and composing a passage space 22 between the panel 14 and the floor 12 where a self-travel floor cleaning device 20 can travel in any direction on the floor 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to a double floor structure.

Conventionally, the lower floor (bottom floor) has been used in factories and laboratories for semiconductor elements, integrated circuits, precision equipment, chemicals, etc., where the adhesion or contamination of slight dust or impurities during the process causes fatal defects or defects. A double-floor structure in which upper floors (hereinafter referred to as "perforated work floors") having a plurality of vacant spaces or holes penetrating from the front surface to the back surface, such as a drainboard or a lattice, are stacked on top of each other at intervals. Therefore, it has been attempted to improve the cleanliness of the room by preventing the accumulation and accumulation of dust and the like on the floor where workers and the like perform work. When higher cleanliness is required, laminar air is flowed downward from the ceiling, and dust and the like generated from workers and equipment / materials used and floating in the air are provided on the perforated work floor. It was also performed to sink to the bottom floor through the through hole.

Further, Patent Document 1 describes an autonomous floor cleaning device (self-propelled floor cleaning device) having a self-propelled mechanism using an electric driving force in a clean room in which grating panels are arranged at intervals on the bottom floor. However, a double-floor structure that runs on the bottom floor is disclosed. The self-propelled floor cleaning device runs on its own in the space between the grating panel and the bottom floor, and sucks dust and dirt that has settled or dropped on the bottom floor (hereinafter referred to as "settled matter") to remove the bottom floor. After cleaning, it returns to the position of the charger provided on the bottom floor.

JP 2012-065720

However, the conventional double-floor structure with a perforated work floor can be used for semiconductor elements, integrated circuits, precision equipment, chemicals, etc. It is a part of a structure such as a building structure that is built by being incorporated into an architectural design drawing from the beginning when building a factory or laboratory that manufactures or manufactures, and is newly added to the existing structure. There is a problem that a large remodeling of the structure is required to provide the floor structure, which requires a high cost.

In addition, for example, when the legs supporting the perforated work floor have a wall shape extending in one direction, such as a double floor structure in a conventional clean room that does not assume the use of a self-propelled floor cleaning device. Of course, like the rectangular metal grating panel in the plan view of Patent Document 1, legs that support the grating panel on the bottom floor at intervals are formed in parallel in one direction. Even in this case, the self-propelled floor cleaner generally travels approximately linearly along a direction parallel to its leg until it hits a wall, unless otherwise provided with a means of controlling and guiding its direction of travel. Therefore, there is a problem that the movement pattern is restricted and the cleaning efficiency is low.

In addition, when a double floor structure is constructed as a part of a building structure such as a clean room, the perforated work floor can be partially lifted as a maintenance hatch at a key point of the perforated work floor. Although some locations may be provided, the perforated work floor is usually not partially lifted at any position. However, in the self-propelled floor cleaning device as shown in Patent Document 1, for example, the self-propelled floor cleaning device is a predetermined self-propelled device such as a charger due to a battery exhaustion or failure during self-propelling. Self-propelled floor cleaning equipment, maintenance materials, falling objects, etc. Articles need to be taken in and out at any position in the double floor structure.

However, since the grating panel has a plate-like structure that is generally integrated as described above, it is necessary to remove the grating panel from the floor over a wide area if an article is to be taken in and out at an arbitrary position of the double structure. , There is a problem that the work load becomes large. Further, since the grating panel used in a clean room or the like is usually made of metal and is relatively heavy in weight, there is also a problem that the physical burden related to the removal work becomes large.

The present invention has been made by paying attention to the above-mentioned problems, and has improved cleaning efficiency, and even when stopped at a position other than a predetermined self-propelled end position, from the floor of the self-propelled floor cleaning device. It is an object of the present invention to provide a double-floor structure capable of reducing the burden of removal work and easily converting a normal floor into a double-floor.

The double floor structure according to claim 1 includes a floor, a resin panel arranged above the floor and formed with a plurality of through holes, and a panel mounted on the floor to support the panel from below. It has legs that form a passage space between the floor and the self-propelled floor cleaning device so that the self-propelled floor cleaning device can travel on the floor in any direction.

In the above configuration, by installing a resin panel with legs on the floor, a work floor with a double floor structure is formed on the upper side of the panel on which workers and the like can walk and work. Will be done. A passage space is formed between the panel and the floor so that the self-propelled floor cleaning device can travel on the floor in any direction. In other words, underneath the panel, the self-propelled floor cleaner can travel on the floor in any direction, not just one.

Then, the self-propelled floor cleaning device sucks and cleans the sediment that has fallen from the work floor to the floor through the through hole of the panel. Therefore, for example, like the conventional metal grating having a rectangular shape in a plan view, the legs are formed along the sides, and the self-propelled floor cleaning device is in one direction (the direction in which the sides where the legs do not exist are lined up). ), The cleaning efficiency of the self-propelled floor cleaning device is improved compared to the floor structure that can only be moved to).

Also, if the power (battery) of the self-propelled floor cleaning device runs out and stops, when removing the self-propelled floor cleaning device from the passage space, only the panel at the position where the self-propelled floor cleaning device is stopped should be removed. Since it is done, the work load is small. In addition, the resin panel is lighter than the metal grating, so the physical burden is small.

In the double floor structure according to claim 2, an adjusting member for increasing the height of the passage space between the panel and the floor can be attached to the legs. Therefore, since the height of the passing space can be increased according to the height of the self-propelled floor cleaning device, the variation of the applicable self-propelled floor cleaning device can be increased.

In the double floor structure according to claim 3, the through holes are regular hexagons and form a honeycomb structure. Therefore, by forming the honeycomb structure with the through holes of the panel, it is possible to reduce the amount of the resin material required for molding without impairing the strength of the panel.

In the double floor structure according to claim 4, the panel is provided with a metal reinforcing member in the in-plane direction. The reinforcing member can increase the rigidity of the panel and improve the strength of the work floor.

According to the present invention, the double floor structure can improve the cleaning efficiency and reduce the burden of removing the self-propelled floor cleaning device from the floor even when the self-propelled floor cleaning device is stopped at a position other than the predetermined self-propelled end position. Can be provided. Further, it is possible to provide a means for easily attaching a double floor to an existing structure having a normal floor to form a double floor structure.

It is a side view explaining the structure of the double floor structure which concerns on embodiment of this invention. It is a top view explaining the structure of the double floor structure which concerns on this embodiment. It is an enlarged view of the B part in FIG. (A) is a plan view explaining another configuration of a panel used in a double floor structure, and (B) is a plan view explaining still another configuration of a panel. It is a top view explaining the structure of the double floor structure which concerns on a modification. FIG. 6 is a cross-sectional view taken along the line 6-6 in FIG. It is a top view explaining the string-shaped member.

An embodiment of the present invention will be described below. In the description of the drawings below, the same parts and similar parts are designated by the same reference numerals or similar reference numerals. However, the drawings are schematic, and the relationship between the thickness and the plane dimensions, the ratio of the thickness of each device and each member, etc. are different from the actual ones. Therefore, the specific thickness and dimensions should be determined in consideration of the following explanation. In addition, there are parts in which the relations and ratios of the dimensions of the drawings are different from each other.

<Double floor structure>
As shown in FIG. 1, the double floor structure 10 according to the present embodiment is applied, for example, in a work area A in an assembly factory for various parts and devices. The self-propelled floor cleaning device 20 is movable inside the double floor structure 10 sandwiched between the floor 12 and the panel 14. The double floor structure 10 has a floor 12, a panel 14, and legs 16.

In this embodiment, the floor 12 is made of, for example, concrete and has a flat upper surface. The structure of the floor 12 is not limited to this, and as long as the panel 14 can be arranged, it may be made of other than concrete, or a step or the like may be formed. Further, in the present embodiment, the work area A is surrounded by the concrete wall 30, but the wall 30 may not be provided. Further, the wall 30 may be made of other than concrete.

(panel)
As shown in FIG. 1, the panel 14 is a flat plate-shaped member made of resin and is spread above the floor 12. The panel 14 has, for example, a square shape having a side of about 600 mm in a plan view, and has a flat upper surface and a lower surface. The thickness of the panel 14 measured in the vertical direction is, for example, about 35 mm. On the upper side of the panel 14, the worker 24 can walk and work. Further, each panel 14 is formed with a plurality of through holes 14A penetrating in the vertical direction. The panel 14 does not necessarily completely cover the upper part of the floor 12, and for example, a place where a storage tool or other equipment is fixedly installed may be replaced with a strong steel plate or the like.

The overall shape of the panel 14 is not limited to the flat plate-shaped member, and can be appropriately changed such that unevenness is partially formed as long as the worker 24 can walk or work. Further, the shape of the panel 14 in a plan view is not limited to a square shape, and can be appropriately set to a rectangular shape, a triangular shape, a pentagonal shape, or the like. Further, the dimensions of the panel 14 are not limited to those exemplified in this embodiment, and can be changed as appropriate.

In the present embodiment, one module is composed of the panel 14 and the legs 16 attached thereto. A means for simply and stably connecting adjacent panel modules may be provided. As the connecting means, for example, the shape of the peripheral portion of each module panel is provided with a concave portion and a convex portion over the thickness of the panel in a plan view, and the convex portion of the other side is placed on one concave portion of the adjacent panel module. If both panels are connected by pushing them together until they are flush with each other, when separating the two panels, the other panel module can be placed in the same position by pulling it upward using a through hole or the like as a clue. It is possible to pull out the panel module from the double floor structure while leaving it in.

In addition, a plurality of shallow recesses are provided around the surface of the panel module over the entire circumference, and when the panel modules are connected, the recesses of adjacent panel modules face each other, and then the recesses are provided. If a plate-shaped connecting member with the same or thin depth and thickness of the recess is placed across both recesses, and the connecting member is screwed to both recesses to connect both panels, both panels can be connected. When separating the panels, if the screws are removed and the connecting member is removed, one panel can be pulled out from the double floor structure while the mating panel module is left in the same position.

When sediment 26 such as dust or dirt is generated as the worker 24 walks or works, the sediment 26 passes through the through hole 14A and falls to the upper surface of the floor 12. As shown in FIG. 2, the shape of the through hole 14A formed in the center of the panel 14 is a regular hexagonal shape in a plan view, and constitutes a honeycomb structure. The shape of the through hole 14A formed on the peripheral edge of the panel 14 is trapezoidal or pentagonal in plan view.

Since the panel 14 has a honeycomb structure, even if an external force such as an impact or a pressing force is applied to the honeycomb structure portion of the panel 14, the force is sequentially transmitted to the adjacent honeycomb wall surfaces and dispersed in a well-balanced manner, and the entire force is dispersed. Since they are supported by the honeycomb wall surface, if they are made of the same material, they are less likely to be suddenly broken or crushed compared to a simple flat plate or other through-hole shape, and are relatively safe as a work floor.

The shape of the through hole 14A is not limited to the regular hexagonal shape of the honeycomb structure, and can be appropriately changed to a rectangular shape, a triangular shape, a pentagonal shape, or the like (see FIG. 4A). Further, the number of through holes 14A formed in one panel 14 is not limited to the number illustrated in FIG. 2, and the through holes 14A through which the sediment 26 does not stay or deposit on the panel surface and can pass downward. Can be appropriately set as long as the panel strength can be appropriately maintained.

Further, in the case of the panel 14 illustrated in FIG. 2, the through hole 14A is provided on the entire upper surface in a plan view, but the arrangement pattern of the through hole 14A is not limited to this. For example, as shown in FIG. 4B, a plurality of through holes 14A are arranged in a straight line in a plan view, and a plurality of through holes 14A arranged in a row are arranged at intervals. May be good.

Further, in the case of the panel 14 in FIG. 2, a case where the six internal angles of the regular hexagon of the through hole 14A are angular is exemplified in a plan view, but the present invention is not limited to this, and a part of the six internal angles is illustrated. Alternatively, the present invention holds even if all of them are rounded. That is, the shape of the plurality of internal angles may be partially angular or rounded. Further, even if the shape of the through hole 14A is a polygon other than a regular hexagon, the shapes of the plurality of internal angles may be partially angular or rounded as well. good.

In the present embodiment, the panel 14 having the through hole 14A can integrally manufacture the through hole 14A and the side wall portion 14B (see FIG. 3) that borders the through hole 14A by, for example, resin molding. A resin plate member as a material for the panel 14 may be prepared in advance, and the prepared plate member may be partially punched along the thickness direction to produce the panel 14 having the through hole 14A.

(leg)
The legs 16 support the panel 14 from below. The leg portion 16 is made of resin and is, for example, a square columnar member. The material of the leg 16 is not limited to resin, and any other material such as steel can be used. Further, the shape of the leg portion 16 is not limited to a square columnar shape, and can be appropriately changed to a triangular columnar shape, a pentagonal columnar shape, a columnar shape, or the like.

Convex portions 16A are provided on the upper surfaces of the leg portions 16, respectively. The convex portion 16A is, for example, a square pillar, and the upper surface of the square pillar is trapezoidal in a plan view. As shown in FIGS. 1 and 3, the convex portion 16A is detachably fitted from the lower side into the trapezoidal through holes 14A provided at the four corners of the panel 14.

In the present embodiment, the convex portion 16A and the trapezoidal through hole 14A are detachably configured by having a fitting structure corresponding to each other, but the fitting structure that can be adopted is limited to this. Not done. Although not shown, for example, a recess into which the convex portion 16A is inserted may be provided in the panel 14 in addition to the through hole 14A. On the contrary, the leg portion 16 may be provided with a concave portion, and the panel 14 may be provided with a convex portion to be inserted into the concave portion. The number of convex portions and the number of through holes 14A may be one or more, and can be arbitrarily set. Further, the means for attaching and detaching the panel 14 from the leg portion 16 is not limited to the fitting structure, and may be bolted, for example.

Further, since the leg portion 16 is only placed on the floor 12, the leg portion 16 itself is detachable from the floor 12. Therefore, the panel 14 in which the legs 16 are connected is also detachable from the floor 12. Further, although not shown, for example, when the leg portion 16 is made of resin, the strength of the leg portion 16 can be increased by providing a metal rod-shaped or lump-shaped auxiliary member inside. The leg portion 16 having the auxiliary member can be integrally manufactured by, for example, insert molding.

In the present embodiment, the height of the legs 16, that is, the height from the upper surface of the floor 12 to the lower surface of the panel 14, is equal to or higher than the height of the self-propelled floor cleaning device 20. For example, if the height of the self-propelled floor cleaning device 20 is about 90 mm, the height of the legs 16 can be set to a value such as 100 mm or more that the self-propelled floor cleaning device 20 does not come into contact with. The dimensions of the legs 16 can be changed as appropriate.

Further, in the present embodiment, the distance between the adjacent legs 16 is equal to or larger than the maximum width of the self-propelled floor cleaning device 20. For example, if the maximum width of the self-propelled floor cleaning device 20 is about 350 mm, the interval can be set to a value such as 400 mm or more that the self-propelled floor cleaning device 20 does not come into contact with. In the present embodiment, the height of the leg 16 and the distance between the adjacent legs 16 are adjusted so that the self-propelled floor cleaning device 20 is placed in the XY direction between the panel 14 and the floor 12. A passage space 22 capable of traveling in the direction (in-plane direction of the floor surface) is configured.

The position and number of legs 16 attached to the panel 14 are not limited to the four corners of the panel 14. As long as the passage space 22 through which the self-propelled floor cleaning device 20 can travel in the XY direction is configured, for example, it may be provided in the central portion of one side of the square panel 14 in a plan view, and can be set at an arbitrary position. .. That is, the XY directions are not limited to the patterns shown in FIG. 2, and include patterns in two directions intersecting each other on the lower side of one panel 14.

In the present invention, the end portion of the adjacent panel 14 is placed on a part of the upper end of the leg portion of one panel 14, as in the leg portion 17 located at the center in the left-right direction in FIGS. 5 and 6. May be good. In the plan view of the double floor structure 10A according to the modified example shown in FIG. 5, the outer edges of the legs 16 and 17 are illustrated by broken lines. Two convex portions 16A and 17A are provided on the upper portions of the legs 16 and 17 in FIGS. 5 and 6. It should be noted that the illustration of the through hole 14A provided in the central portion excluding the four corners of the panel 14 is omitted except for a part.

That is, for example, each panel module can be in a "cantilevered" state in which the legs are attached to only one side of the panel 14 and the other side is a free end. Then, the free end of the panel 14 is connected by leaning against a part of the upper end of the legs of the other panel modules, and only at the four corners of the panel module arranged at the end of the double floor structure. , Legs can also be attached.

Further, as shown in FIGS. 5 and 6, for example, the panel 14 having the legs 17 provided at the center of the sides and the panels 14 having the legs 16 provided at the four corners may be alternately arranged. Adjacent panels 14 are placed on the legs 16 and 17, respectively. By alternately arranging the panels 14 having the legs 17 in the center of the sides and the panels 14 having the legs 16 at the four corners, the legs do not overlap and the overall support is enhanced. Arrangement is also possible.

Further, like the leg 17 located at the center in the left-right direction in FIGS. 5 and 6, the ends of two or more adjacent panels 14 are placed and supported on one leg 17. In this case, the upper portion of the leg portion 17 can be increased in diameter from the lower portion to increase the strength of the leg portion 17.

Further, an adjusting member 32 (see FIG. 6) for increasing the height of the passage space 22 between the panel 14 and the floor 12 can be attached to the leg portion 16. The adjusting member 32 is, for example, a lump member or a plate-shaped member, and can be made of any material such as resin or metal. The leg portion 16 and the adjusting member 32 can be connected to each other by, for example, a rod-shaped connecting member 34 (see FIG. 6) that can be extended in the vertical direction by a screw or the like. By making it possible to adjust the height of the legs in this way, the height of the work surface can be arbitrarily set to a height that makes it easy to work, and it is appropriate for the self-propelled floor manufacturing equipment to run. It is possible to secure a comfortable traveling space and to adjust the height of the legs to make the panel surface flat even when the surface of the floor 12 is not flat.

For example, one end of the connecting member 34 is inserted into a recess that opens on the surface of the leg 16 on the connecting member 34 side, and the other end is inserted into a recess that opens on the surface of the adjusting member 32 on the leg 16 side. .. The leg portion 16 and the adjusting member 32 connected via the connecting member 34 are detachable from each other. Further, the method of attaching the adjusting member 32 to the leg portion 16 so as to be detachably attached to each other may be other than the method of using the connecting member 34, and other methods such as a fitting structure can be appropriately adopted.

(Reinforcing member)
As illustrated in the second panel 14 from the right in the upper part of FIG. 2, in the present embodiment, a linear storage portion 14C is provided in a part of the panel 14 in a plan view. , A metal reinforcing member 18 is arranged inside the storage portion 14C. The storage portion 14C has a bottom wall and a side wall, and the upper portion is open and has a groove shape. In FIG. 2, the reinforcing member 18 extends in the Y direction, but the present invention is not limited to this, and the reinforcing member 18 may extend in the XY direction.

The upper end of the storage portion 14C in FIG. 2 is open, and the reinforcing member 18 can be inserted and removed from the opening as needed. The position where the opening is provided in the storage portion 14C is not limited to the upper end portion in FIG. 2, and may be the lower end portion. Further, the area on the bottom wall side of the storage portion 14C may be partially opened.

As the reinforcing member 18, for example, a steel pipe can be adopted. The shape of the steel pipe of the reinforcing member 18 is not limited to a cylindrical type, a square cylinder type, or the like, and can be changed as appropriate. The reinforcing member 18 is not limited to the steel pipe, and may be a solid rod-shaped member, a flat plate-shaped member, a lump-shaped member, or the like. Further, the dimensions of the reinforcing member 18 can be changed as appropriate. However, since the reinforcing member 18 reinforces the resin panel 14, it is preferable that the reinforcing member 18 is made of a material having a rigidity higher than that of the resin.

The reinforcing member 18 is expected to have a relatively large load applied to the panel 14 from above, and can be arranged at a position where it is desired to partially enhance the rigidity. Further, the reinforcing member 18 may be provided on all the panels 14. If it is desired to prioritize the weight reduction of the panel 14 over the strengthening of the rigidity, the panel 14 may be used in a state where the reinforcing member 18 is not arranged in the storage portion 14C.

The number of reinforcing members 18 provided inside one panel 14 can be arbitrarily set to one or more. Further, the number of panels 14 on which the reinforcing member 18 is arranged is not limited to one, and two or more can be arbitrarily set.

(Work floor)
In the present embodiment, as shown in FIG. 2, a plurality of panels 14 are arranged in a row on the floor 12 sandwiched between the left wall 30 and the right wall 30 of the work area A without a gap. By doing so, a work floor is formed. In FIG. 2, a case where 12 panels 14 are laid out is illustrated, but the number of panels 14 constituting the work floor is not limited to this, and can be changed as appropriate.

Further, the 12 panels 14 in FIG. 2 are arranged so as to be closely connected without gaps, but the present invention is not limited to this, and the formation of gaps between the panels 14 is not excluded. Unless there is a situation in which work is interfered with, such as when a worker 24 working in a work space on the work floor gets his foot caught or an instrument such as a loading platform placed on the work floor is tilted, there is a gap. May be formed.

<How to use the double floor structure>
In the present embodiment, the sediment 26 that has fallen into the passage space 22 under the panel 14 through the through hole 14A of the panel 14 is deposited on the floor 12. The deposited sediment 26 is removed by the self-propelled floor cleaning device 20. In the present embodiment, the self-propelled floor cleaning device 20 has, for example, a circular shape in a plan view and a diameter (maximum width) of about 350 mm. The height (thickness) of the self-propelled floor cleaning device 20 is about 90 mm.

The shape of the self-propelled floor cleaning device 20 is not limited to a circular shape, and can be appropriately changed to a rectangular shape, a triangular shape, a pentagonal shape, or the like. Further, the dimensions of the self-propelled floor cleaning device 20 can be changed as appropriate. Further, the self-propelled floor cleaning device 20 is provided with an operation panel (not shown) for controlling the cleaning operation. Further, a charger (not shown) for the self-propelled floor cleaning device 20 is installed on the floor 12.

In the present embodiment, in the normal cleaning, the administrator first operates the operation panel of the self-propelled floor cleaning device 20 to start the self-propelled floor cleaning device 20. After the start of self-propelling, the self-propelled floor cleaning device 20 moves according to, for example, a randomly set runway. The movement pattern of the self-propelled floor cleaning device 20 may be fixedly set in advance on an arbitrary runway.

Further, when the self-propelled floor cleaning device 20 comes into contact with the wall 30, it is possible to add an operation such that the traveling direction changes to the side opposite to the traveling direction before the contact to the self-propelled floor cleaning device 20. .. The self-propelled floor cleaning device 20 sucks and cleans the sediment 26 deposited on the floor 12 in the passage space 22, and then returns to the self-propelled end position.

In FIG. 2, the random movement pattern of the self-propelled floor cleaning device 20 is illustrated by a white arrow, but the movement pattern is not limited to this. As the self-propelled start position and the self-propelled end position of the self-propelled floor cleaning device 20, for example, the position of the charger can be adopted. In addition, a position other than the charger may be adopted as the self-propelled start position and the self-propelled end position. Further, the self-propelled start position and the self-propelled end position can be set to different positions from each other. Further, the self-propelled floor cleaning device 20 can be set to return to the position of the charger or the self-propelled end position when the remaining battery level becomes a certain amount or less. It should be noted that it does not exclude a self-propelled floor cleaning device capable of supplying power during running that does not require a fixed charger or that a plurality of chargers are provided in the runway.

On the other hand, due to a malfunction in the self-propelled mechanism of the self-propelled floor cleaning device 20 or a dead battery, the self-propelled floor cleaning device 20 cannot return to the set self-propelled end position and is self-propelled. In addition, the administrator may stop at an unintended position. However, in the present embodiment, even if the self-propelled floor cleaning device 20 stops at an unintended position, the panel 14 near the stop position of the self-propelled floor cleaning device 20 is partially removed from the floor 12 and self-propelled. The mold floor cleaning device 20 may be taken out from the double floor structure 10 and repaired, charged, or the like.

(Action effect)
According to the double floor structure 10 according to the present embodiment, the worker 24 can walk or work on the upper side by laying the resin panel 14 provided with the legs 16 on the floor 12 and arranging the panels 14. The work floor of the double floor structure 10 is formed. Further, a passage space 22 is formed between the panel 14 and the floor 12 so that the self-propelled floor cleaning device 20 can travel in the XY directions. In other words, under one panel 14, the self-propelled floor cleaning device 20 can travel not only in one direction but also in two directions in the XY directions. In the present invention, the traveling direction of the self-propelled floor cleaning device on the floor is not limited to the XY direction, and can be set in any direction.

Further, the self-propelled floor cleaning device 20 sucks and cleans the sediment 26 that has fallen from the work floor to the floor 12 through the through hole 14A of the panel 14. Therefore, for example, like the conventional metal grating having a rectangular shape in a plan view, the legs are formed along the sides, and the self-propelled floor cleaning device 20 is arranged in one direction (the sides where the legs do not exist are lined up). Compared with the floor structure that can move only in the direction), the cleaning efficiency of the self-propelled floor cleaning device 20 is improved.

Further, when the power of the self-propelled floor cleaning device 20 is cut off and the self-propelled floor cleaning device 20 is stopped, when the self-propelled floor cleaning device 20 is taken out from the passage space 22, only the panel 14 at the position where the self-propelled floor cleaning device 20 is stopped is used. Since it only needs to be partially removed, the work load is small. Further, since the resin panel 14 is lighter than the metal grating, the physical burden is small. Therefore, the cleaning efficiency can be improved, and the burden of removing the self-propelled floor cleaning device 20 from the floor 12 can be reduced even when the self-propelled floor cleaning device 20 is stopped at a position other than the predetermined self-propelled end position. Further, it is possible to provide a means for easily attaching a double floor to an existing structure having a normal floor to form a double floor structure.

Further, in the double floor structure 10 according to the present embodiment, the height of the passage space 22 can be increased according to the height of the self-propelled floor cleaning device 20 by the adjusting member 32, so that the applicable self can be applied. The variation of the running type floor cleaning device 20 can be increased.

Further, in the double floor structure 10 according to the present embodiment, by forming the honeycomb structure with the through holes 14A of the panel 14, the strength of the panel 14 is not impaired and the amount of the resin material required for molding can be reduced. ..

Further, in the double floor structure 10 according to the present embodiment, since the panel 14 is provided with the metal reinforcing member 18 in the in-plane direction, the rigidity of the panel 14 is increased and the strength of the work floor is improved. be able to.

<Other Embodiments>
Although the present invention has been described by the disclosed embodiments described above, the statements and drawings that form part of this disclosure should not be understood as limiting the invention. For example, it is not essential that the panel 14 comes into contact with the wall 30, and the double floor structure 10 according to the present embodiment can be constructed even in the work area A where the wall 30 does not exist.

Further, although not shown, as a wall member for contacting the self-propelled floor cleaning device 20 when changing the traveling direction, for example, a plate is provided between the side surfaces of the panel 14 and the adjacent legs 16. The shaped members may be provided so as to partially block the passage space 22. By contacting the wall member with the self-propelled floor cleaning device 20 moving in the passage space 22, the traveling direction of the self-propelled floor cleaning device 20 is changed even if the panel 14 is arranged so as not to contact the wall 30. Since it is possible to carry out the cleaning work smoothly.

In the present invention, a device or means that can arbitrarily set a moving route with high cleaning efficiency of the self-propelled floor cleaning device may be provided. For example, in order for the self-propelled floor cleaning device to follow a movement pattern with high cleaning efficiency, a breaker-like bar that can extend in all directions is provided on each leg, and the breaker can be opened and closed manually or remotely. If the breaker is down between the legs, the self-propelled floor cleaning device will change the course by contacting the breaker, and eventually the self-propelled floor cleaning device will move in the direction in which the breaker is not down. By inducing the movement, the self-propelled floor cleaning device can follow an arbitrarily set movement pattern with good cleaning efficiency.

Further, although not shown, for example, a protective member (side guard) may be provided on the side surface of the panel 14 to increase the strength. Further, a protective box (harness cover) for protecting the wiring of the power cord, telephone cord, etc. arranged on the work floor accompanying the work can be provided between the adjacent legs 16 on the floor 12. .. Further, a plug member for preventing a member or the like necessary for work from falling into the through hole 14A instead of the sediment 26 may be fitted into a part of the through hole 14A of the panel 14.

Further, as shown in FIG. 7, the string-shaped member 36 can be wound around the outer surface of the plurality of panels 14 integrally connected to bind the plurality of panels 14 to enhance the integrity. As the string-shaped member 36, for example, a resin tape made of polypropylene (PP) or the like can be used, but the string-shaped member 36 is not particularly limited as long as it is string-shaped.

As a specific method of using the string-shaped member 36, for example, after winding the string-shaped member 36 around the outer surfaces of a plurality of panels 14, both ends of the string-shaped member 36 are joined. In FIG. 7, the string-shaped member 36 is wound around the rectangular outer edge of the integrated panel 14, and both ends of the string-shaped member 36 are joined at a position substantially at the center of one lower side. Is illustrated. The connection may be realized by tying both ends of the string-shaped member 36, or may be realized by caulking both ends. Further, both ends of the superposed string-shaped members 36 may be fastened by using a fixing tool such as a clip.

When removing a part of the panel 14 out of the plurality of integrated panels 14 from the surroundings, the knots at both ends are untied, an arbitrary part is cut, or the fixture is removed, and the string-shaped member is removed. The binding of the plurality of panels 14 by 36 may be loosened. The loosened string-shaped member 36 may be reused. When the loosened string-shaped member 36 is discarded, the removed panel 14 is refitted into the plurality of panels 14 and returned, and then the newly prepared string-shaped member 36 is used. It suffices to bind a plurality of integrated panels 14 together.

Further, mounting members for detachably connecting to each other may be provided on the outer surfaces of the adjacent panels 14. For example, one of the pair of adjacent panels 14 may be provided with a mounting member having a concave portion, and the other may be provided with a mounting member having a convex portion that can be fitted into the concave portion. Then, the adjacent panels 14 may be connected to each other by fitting the concave portion and the convex portion, and the adjacent panels 14 may be separated from each other by removing the convex portion from the concave portion.

Further, for example, in the present embodiment, the self-propelled floor cleaning device 20 has been exemplified as a cleaning device for cleaning the floor 12 inside the double floor structure 10, but in the present invention, the cleaning device is self-propelled. It is not limited to the running type. For example, it may be a cleaning device that is moved by remote control of the administrator.

In addition, the double-floor structure according to the present invention can be constructed by partially combining the configurations described in the present specification and the configurations shown in the drawings. The present invention includes various embodiments not described above, and the technical scope of the present invention is defined only by the matters specifying the invention within the scope of claims reasonable from the above description.

10,10A Double floor structure 12 Floor 14 Panel 14A Through hole 14B Side wall 14C Storage part 16 Leg 16A Convex 17 Leg 17A Convex 18 Reinforcing member 20 Self-propelled floor cleaning device 22 Passing space 24 Worker 26 Sinking Object 30 Wall 32 Adjusting member 34 Connecting member 36 String-shaped member A Work area

Claims (4)

On the floor
A resin panel arranged above the floor and having a plurality of through holes formed therein.
Legs that are placed on the floor, support the panel from below, and form a passage space between the panel and the floor so that a self-propelled floor cleaning device can travel on the floor in any direction.
Double floor structure with. An adjusting member for increasing the height of the passage space between the panel and the floor can be attached to the legs.
The double floor structure according to claim 1. The through hole is a regular hexagon and constitutes a honeycomb structure.
The double floor structure according to claim 1 or 2. The panel is provided with a metal reinforcing member in the in-plane direction.
The double floor structure according to any one of claims 1 to 3.

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