JP2007239396A - Covering lid for outside installed tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a covering lid for an outside installed tank capable of reducing the weight of the covering lid and facilitating its opening and closing. <P>SOLUTION: In this covering lid for the outside installed tank provided horizontally between opposing fringes of the outside installed tank, for example, a water storage tank 1, a covering lid member 10 constituting the covering lid is formed by a honeycomb panel composed of a pair of aluminum-made surface plates 11 and an aluminum-made hollow core member 12 provided between these surface plates. Consequently, weight of the covering lid can be reduced, and its opening and closing can be facilitated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cover for an outdoor installation tank that covers an opening of an outdoor installation tank such as a septic tank, a water storage tank, and a water channel installed in a water purification plant, for example.

  In general, in septic tanks, water storage tanks, waterways, etc., the openings of septic tanks, water tanks, waterways, etc. are covered with a flat cover to prevent air from being contaminated by rainwater and the ingress of garbage into purified water. ing. Conventionally, as these cover materials, aluminum cover materials have been proposed that are lightweight and excellent in workability, can form long and wide face materials, and are excellent in recyclability.

As a cover made of aluminum, a roof material (cover material) in which an aluminum plate material is attached to a plurality of frame materials is known, and wheel units are attached to both sides of this roof material, and it is installed along the edge of the tank. It moves on the rail which was made (for example, refer patent document 1).
Japanese Patent Laying-Open No. 2005-8245 (paragraph number 0012, FIGS. 1 and 2)

  However, since the cover described in Japanese Patent Application Laid-Open No. 2005-8245 has a structure in which a surface plate is stretched on the frame material, water remains on the cover unless the surface plate is deformed and the roof gradient is increased. Therefore, a large roof slope was necessary.

  Further, the structure in which the surface plate is stretched on the frame member has a problem that deformation (in-plane deformation) in the shape viewed from the plane occurs unless the rigidity of the frame member is extremely increased. Further, since the weight increases to increase the rigidity, it is difficult for one person to open and close the cover manually, and it is necessary to devise the wheel structure.

  This invention is made | formed in view of the said situation, and makes it a subject to provide the cover for outdoor installation tanks which is easy to open and close while reducing the weight of a cover.

  In order to solve the above-mentioned problems, the cover for an outdoor installation tank of the present invention is for an outdoor installation tank that covers a tank opening by laying between facing edges of an outdoor installation tank such as a water purification tank, a water storage tank, and a water channel. In the cover, the cover material constituting the cover is formed by a honeycomb panel including a pair of aluminum surface plates and an aluminum hollow core material interposed between the surface plates. . Here, aluminum is meant to include aluminum or an aluminum alloy.

  By comprising in this way, since a cover can be formed with an aluminum honeycomb panel, weight can be reduced. Moreover, since the cover material which comprises a cover is laid across the edge of a tank, infiltration of rain water etc. from the outside can be prevented.

  The invention described in claim 2 is the outdoor installation tub cover according to claim 1, wherein the cover material has an inclination determined in consideration of the deflection of the cover material from one end to the other end. It is characterized by that. Here, the inclination is a ratio of the height difference (h) between one end and the other end of the cover material and the total length (l) of the cover material, that is, h / l (%).

  In the invention described in claim 2, the water gradient at the low part of the cover material is preferably 0% or more, and more preferably 1% or more (inventions 3 and 4).

Further, the height difference (h) {mm} between one end and the other end of the cover material, the total length (l) {mm} of the cover material, the sum of the weight of the cover material and the load (W) {N / mm } When the Young's modulus (E) of the entire cover material (E) {N / mm ² } and the cross-sectional secondary moment (I) {mm ⁴ } of the cover material,
h = (Wl ⁴ / 24EI) + (1/100) can be easily designed in consideration of the deflection of the cover material, and the height difference (h) between one end and the other end of the cover material is It is preferable that the value is equal to or greater than the value obtained from the equation (5).

  With this configuration, rainwater or the like can be drained from one end to the other end of the cover material without accumulating rainwater or the like on the top surface of the cover even when the cover material is bent.

  According to a sixth aspect of the present invention, in the cover for an outdoor installation tank according to the first or second aspect, the supporting member that supports the end portion of the cover material is formed of an extruded aluminum member that can be laminated together. It is characterized by.

  By comprising in this way, the height of a cover lid can be changed arbitrarily by changing the stacking state of the aluminum extruded profiles. Moreover, a water gradient can be easily provided in the cover material by changing the stacked state of the aluminum extruded profiles.

  According to a seventh aspect of the present invention, in the cover for outdoor installation tank according to the first or second aspect, the support member that supports the end portion of the cover material is formed between a pair of aluminum surface plates and these surface plates. It is formed by a honeycomb panel composed of an intervening aluminum hollow core material.

  With this configuration, the support member can be formed of a honeycomb panel similar to the cover, and the height of the cover can be arbitrarily changed by changing the height of the support member made of the honeycomb panel. it can. Further, by changing the height of the honeycomb panel, it is possible to easily provide a water gradient necessary for the cover material even when the span of the cover material is changed.

  The invention according to claim 8 is the cover for outdoor installation tank according to claim 6 or 7, wherein the joining member for joining the end portion of the cover member and the upper end portion of the support member is the cover member and the support member. It is characterized by being formed by an aluminum extruded profile having a fitting groove for fitting the end portions of each, and a hollow connecting portion for connecting both fitting grooves.

  By comprising in this way, joining of a cover lid and a supporting member can be made easy and firm, and intrusion of rain water etc. from a joined part can be prevented.

  The invention described in claim 9 is the outdoor installation tank cover according to any one of claims 6 to 8, on the rail laid on the upper surface of the edge of the outdoor installation tank at the lower ends of the both support members. A roller that can roll is mounted, and a guide roller that is movably engaged with both side surfaces of the upright convex piece provided along the upper surface of the rail is mounted on one lower portion of the support member. It is characterized by. In this case, it is preferable to provide a locking groove that opens laterally on the upright convex piece of the rail, and to provide a lifting prevention piece that is inserted into the locking groove at the lower end of the support member. (Claim 10).

  By configuring in this way, the cover material can be opened and closed along the rail without applying a load to the rail by utilizing the fact that the out-of-plane bending rigidity of the cover material formed by the honeycomb panel is large. . In this case, a cover groove material is provided by providing a latching groove that opens laterally on the standing convex piece of the rail, and providing a lifting prevention piece that is inserted into the latching groove at the lower end of the support member. It is possible to prevent the cover material from being lifted and falling off the rails due to the movement of the air or the wind pressure. In addition, since the in-plane rigidity is increased by the configuration of the honeycomb panel, no deformation occurs in the shape viewed from the plane, so even with the simple roller structure as described above, the cover can be opened and closed by one person. Can do.

  The invention described in claim 11 is the outdoor installation tank cover according to any one of claims 1 to 10, wherein the cover is configured by a plurality of the cover materials, and the adjacent cover materials are stored in each other. It is formed so that it can be pulled out.

  By comprising in this way, while being able to open | release the arbitrary locations of a cover, the open | released cover material can be accommodated in the adjacent cover material.

  According to this invention, since it is configured as described above, the following effects can be obtained.

  (1) According to the first aspect of the present invention, the weight can be reduced by forming the cover with the aluminum honeycomb panel, so that it can be easily installed and opened at the opening of the outdoor installation tank. can do. In addition, it is possible to prevent the intrusion of rainwater from the outside, so that the drinking water in the tank is contaminated by rainwater, etc., especially when the outdoor installation tank is used for septic tanks, waterways, etc. Can be prevented.

  (2) According to the inventions of claims 2 to 5, even when the cover material is bent by its own weight or load, rainwater is not collected on the upper surface of the cover, and rainwater is transferred from one end to the other end of the cover material. Since it can drain, in addition to (1) above, it is possible to reliably prevent rainwater and the like from entering the tank.

  (3) According to the invention described in claim 6, the height of the cover can be arbitrarily changed by changing the stacked state of the aluminum extruded profiles, and the stacked state of the aluminum extruded profiles can be changed. By changing it, a water gradient can be easily provided in the cover material. Therefore, in addition to the above (1) and (2), the cover can be further easily installed.

  (4) According to the invention described in claim 7, the support member can be formed of a honeycomb panel similar to the cover, and the height of the cover can be increased by changing the height of the support member made of the honeycomb panel. A water gradient can be easily provided on the cover material by changing the height of the honeycomb panel. Therefore, in addition to the above (1) and (2), the cover can be further easily installed. Further, since the cover member and the support member can be used together, the types of constituent members can be reduced and the cost can be reduced.

  (5) According to the invention described in (8), the joining of the cover and the support member can be facilitated and strengthened, and the intrusion of rainwater or the like from the joining portion can be prevented. In addition to (4) to (4), it is possible to reliably prevent rainwater and the like from entering the tank.

  (6) According to the invention described in claim 9, since the cover material can be opened and closed along the rail without applying a load to the rail, in addition to the above (1) to (5), the cover is further covered. Opening and closing work of the material can be facilitated. In this case, a cover groove material is provided by providing a latching groove that opens laterally on the standing convex piece of the rail, and providing a lifting prevention piece that is inserted into the latching groove at the lower end of the support member. It is possible to prevent the cover material from floating and falling off the rail during the movement or wind pressure, so that the cover material can be opened and closed stably (claim 10).

  (7) According to the eleventh aspect of the present invention, any part of the cover can be opened, and the opened cover material can be stored in the adjacent cover material. In addition to (6), the maintenance / inspection work for the outdoor tank can be facilitated without the cover material getting in the way.

  Below, the best embodiment of the cover for outdoor installation tanks concerning this invention is described in detail based on an accompanying drawing.

<First Embodiment>
FIG. 1 is a schematic plan view showing a use state (covering state) of the first embodiment of the cover for an outdoor tank according to the present invention, FIG. 2 is a cross-sectional view taken along the line II of FIG. 1, and FIG. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1.

  The above-mentioned cover covers a plurality of cover materials 10A to 10E (hereinafter, denoted by reference numeral 10) that are laid across support members 20 between edges of the outdoor installation tank, for example, the water storage tank 1, through the support member 20. The roller 30 which can run on the edge part which the water storage tank 1 opposes is comprised, and the opening part 2 of the water storage tank 1 is formed so that opening and closing of these cover materials 10 is possible.

  The cover material 10 is formed of a honeycomb panel in which a pair of aluminum surface plates 11 and an aluminum hollow core material 12 interposed between the surface plates 11 are integrated by brazing or bonding. In this case, a frame member 13 made of a hollow extruded shape member made of aluminum is interposed between the surface plates 11 at the edge of the cover member 10.

  The support member 20 is formed of extruded aluminum members 21A and 21B that can be laminated with each other. In this case, as shown in FIGS. 4 and 5, the extruded shape members 21 </ b> A and 21 </ b> B constituting the support member 20 are fitted with the fitting ridges 23 or fitting ridges that can be fitted to the upper and lower surfaces of the hollow rectangular base 22. The first extruded shape member 21A having 24, the fitting ridge 23 or the fitting groove 24 on the lower surface of the hollow rectangular base 22, and the substantially horizontal shape on which the end portion of the cover material 10 is placed on the upper surface. Two types of second extruded shape members 21B having a mounting surface 25 having a flat surface (specifically, a gradient surface equivalent to a water gradient θ described later) are used.

  The cover member 10 is provided with a water gradient θ, for example, 5% from one end to the other end by changing the height of the support member 20, that is, the number of stacked stages of the first and second extruded shapes 21A and 21B. (See FIG. 3).

  By providing the water gradient θ in this way, it is possible to prevent rainwater or the like from accumulating on the upper surface of the cover material 10, and to drain rainwater or the like from one end of the cover material 10 to the other end side. The upper surface of the second extruded shape member 21B and the frame member 13 of the cover member 10 are fixed by a connecting bolt 26 (see FIGS. 4 and 5). At this time, if the upper surface of the second extruded shape member 21B is horizontal, for example, a synthetic rubber spacer may be interposed in correspondence with the water gradient θ. A decorative cover 27 is attached to the end of the frame member 13 of the cover member 10 and the outside of the support member 20 (see FIGS. 4 and 5).

  The nut of the connecting bolt is tightened by inserting a box spanner or the like through a tool insertion hole (not shown) formed on the upper surface of the frame member 13, and the tool insertion hole is covered with the surface plate 11 when the honeycomb panel is manufactured.

  As shown in FIGS. 4 and 5, the lower surface of the first extruded shape member 21 </ b> A constituting the lowermost stage of the support member 20 on the high side and the low side is laid on the upper surface of the edge of the water tank 1. A roller 30 that can roll on a rail 40 formed of, for example, an aluminum extruded shape member is mounted, and a guide roller 35 is mounted on one end of the cover member 10, for example, the lower surface of the lower support member 20. Has been.

  In this case, as shown in FIGS. 4, 8, and 9, the roller 30 is a lower surface of the first extruded shape member 21 </ b> A at the lowest stage of the pair of support members 20 that support the end portions of the single cover material 10. A bifurcated bracket 33 fixed by a connecting bolt 32 is rotatably mounted on a lower surface of a girder 31 formed of an aluminum hollow extruded shape fitted and fixed thereto via a support shaft 34. In this case, as shown in FIG. 4, the girder 31 is provided with a fitting groove 31 a that can be fitted to the fitting protrusion 23 of the lowermost first extruded shape member 21 </ b> A. The roller 30 configured as described above is mounted on a running surface 42 of a rail 40 that is laid and fixed by anchor bolts 41 on the upper surface of the edge of the water storage tank 1.

  Further, as shown in FIG. 5, the guide roller 35 is provided on the lower surface of the first extruded shape member 21 </ b> A or the second extruded shape member 21 </ b> B located at the lowermost stage of the low-side support member 20 via a holding plate 36. Both side surfaces of an upright convex piece 43 that is rotatably mounted on a pair of support shafts 38 that are suspended from the lower surface of a mounting member 37 made of a hollow extruded aluminum member that is fixed, and is provided along the upper surface of the rail 40. It is engaged so that it can roll. In this case, the holding plate 36 and the mounting member 37 are fixed to the lower surfaces of the first extruded shape member 21 </ b> A and the second extruded shape member 21 </ b> B by fixing bolts 39, and the guide roller 35 is driven by the roller 30. It is mounted at a position shifted from the track to the inside of the cover material 10.

  As described above, the guide roller 35 is movably engaged with both side surfaces of the upright convex piece 43 provided along the upper surface of the rail 40, so that the cover material 10 can be moved when the cover material 10 is opened and closed. The roller 30 can smoothly roll on the rail 40 without being inclined in the traveling direction and without moving in the direction orthogonal to the opening / closing direction. At this time, since the cover material 10 is formed of a honeycomb panel, the out-of-plane bending rigidity is large, and therefore the cover material 10 can be opened and closed along the rail 40 without applying a load to the rail 40.

  Further, as shown in FIG. 4, the standing convex piece 43 of the rail 40 is provided with a locking groove 44 that opens to the side, and the lower end of the support member 20 is placed in the locking groove 44. A substantially L-shaped lifting prevention piece 45 provided in the portion is inserted. In this case, the lifting prevention piece 45 is provided integrally with the bifurcated bracket 33. In this way, the raised concave piece 43 of the rail 40 is provided with the locking groove 44 that opens to the side, and the lifting prevention piece 45 inserted into the locking groove 44 is provided at the lower end of the support member 20. By providing, it is possible to prevent the cover material 10 from being lifted and dropped from the rail 40 due to the opening / closing movement of the cover material 10 or wind pressure.

  Adjacent cover materials 10 are formed such that they can be stored and pulled out. In this case, as shown in FIGS. 1 and 2, the cover materials 10B and 10D adjacent to the cover materials 10A and 10E located at the left and right ends are long in the longitudinal direction of the cover material and high in the height direction. It is formed so that the cover materials 10A and 10E positioned at the left and right ends can be relatively stored and pulled out. 1 and 2, the cover material 10C located in the middle is also formed so as to be able to be stored and withdrawn relative to the cover materials 10B and 10D in the same manner as the cover materials 10A and 10E located at the left and right ends. .

  By comprising in this way, all the cover materials 10A-10E can be pulled out, the opening part 2 of the water storage tank 1 can be obstruct | occluded, and either of the cover materials 10A-10E is relative to the adjacent cover material 10. It can be housed and any location can be opened.

  In the adjacent cover materials 10A to 10E, for example, a synthetic rubber draining sheet 46 is suspended from the opening / closing movement-side end portions of the cover materials 10B and 10D positioned outside in the stored state, and the cover material positioned inside. A draining piece 47 is erected on the opening / closing movement side ends of 10A, 10C, and 10E so as to overlap the draining sheet 46 (see FIGS. 2 and 6). In addition, a draining sheet 46 made of, for example, synthetic rubber is suspended from the edge of the cover material 10A, 10E located at the left and right ends of the water storage tank 1, and a draining sheet 46 is provided at the edge of the water storage tank 1. A draining piece 47A is erected so as to overlap (see FIG. 6).

  The cover material 10 is formed so as to be lockable to the rail 40 at the open position and the closed position by the lock mechanism 50. In this case, as shown in FIG. 7, the locking mechanism 50 is suspended from the lower end portion of the support member 20 that supports the cover member 10 and extends outwardly from the upright convex piece 43 of the rail 40. 33 is slidably inserted into a support bracket 51 extending to 33 and a through-hole 52 provided in the support bracket 51, and is always pressed by a biasing force of the compression spring 53 in a direction away from the raised convex piece 43. The stopper pin 54 is provided on the upright convex piece 43, and a locking hole 55 into which the stopper pin 54 can be inserted. That is, the stopper pin 54 can be maintained in a free state by a known structure in which the tip of the stopper pin 54 is locked in the locking hole 55 and the tip of the stopper pin 54 is released to the left from the locking hole 55. ing.

Next, the water gradient θ provided in the cover material 10 will be described in detail. First, in order to provide an appropriate water gradient θ, it is necessary to consider the deflection of the cover material 10. In order to obtain the deflection, the cover material 10 is considered to be a beam material having a uniform distribution load. Therefore, as shown in FIG. 10A, a simple beam with a uniform distribution load per unit length (w) {N / mm}. The deflection amount δ {mm} of
δ = (wl ⁴ / 24EI) × (x / l−2x ³ / l ³ + x ⁴ / l ⁴ )
It is.

Here, l is the total length of the beam (length of the cover material) {mm}, E is the Young's modulus {N / mm ² } of the beam material, and I is the cross-sectional secondary moment {mm ⁴ } of the beam material.

Further, as shown in FIG. 10A, the deflection angle φ is
φ = dy / dx
= (Wl ⁴ / 24EI) × (1 / l-6x ² / l ³ + 4x ³ / l ⁴ )
It is.

At x = 0 (origin)
φ = wl ³ / 24EI
It becomes.

A load W [(self weight) + (loading load) {N / mm}] per unit length is loaded on the cover material, and the water gradient in the low part is at least 0 (zero)% or more at the minimum. As shown in (b)
The required amount of inclination h ′ is tanφ = tan (Wl ³ / 24EI) ≦ h ′ / l
Since the deflection angle φ is very small,
tan (Wl ³ / 24EI) ≈Wl ³ / 24EI and h ′ / l ≧ (Wl ³ / 24EI)
From the above formula,
^{h '≧ (W × l 4} /24 × E × I)
It becomes.

Therefore, in order to make the water gradient at the lower part of the cover lid 1% or more after the deflection occurs under load loading in order to make the water discharge more reliable, the difference in the height of the cover material for obtaining the inclination (H) {mm} h ≧ h ′ + 1/100
≧ Wl ⁴ / 24EI + 1/100
Therefore, from the above formula, the height difference h (mm) between the one end and the other end of the cover material is the total length (l) {mm} of the cover material, the own weight per unit length of the cover material, and the load load. When the sum (W) {N / mm}, the Young's modulus of the entire cover material (E) {N / mm ² }, and the cross-sectional second moment (I) {mm ⁴ } of the cover material,
It is better to satisfy h ≧ Wl ⁴ / 24EI + 1/100.

In addition, when the water gradient in the low part with respect to the inclination amount in the different kind of the cover material 10 was investigated, the result as shown in Table 1 was obtained.

  As a result, if the cover material has a normal length with respect to the cover material 10, if the difference in height between one end and the other end for obtaining an inclination is about 206 to 439 mm, the water gradient at the lower portion is 3.5. It was found that a sufficient water gradient could be obtained by ˜4.4%.

Second Embodiment
FIG. 11 is a cross-sectional view showing the high side of the cover member and the support member in the second embodiment according to the present invention, and FIG. 12 is a cross-sectional view showing the low side of the cover member and the support member in the second embodiment. is there.

  In the second embodiment, the support member is formed of a honeycomb panel. That is, when the supporting member 20A that supports the end portion of the cover material 10 is formed of a honeycomb panel including a pair of aluminum surface plates 11 and an aluminum hollow core material 12 interposed between the surface plates 11 It is. In this case, the surface plate 11 and the hollow core material 12 are integrated by brazing or bonding. Thus, by changing the height of the supporting member 20 </ b> A formed of the honeycomb panel, the water gradient θ can be provided with a difference (h) between one end and the other end of the cover material 10.

  In addition, since this support member also serves as the decorative cover 27 in the first embodiment, the support member has dimensions over the entire width of the cover material 10.

  Moreover, in 2nd Embodiment, as shown in FIG. 12, it is also possible to provide the water gradient θ by providing the difference (h) between one end and the other end of the cover member 10 without using the support member 20A. is there.

  Further, the joining member 60 that joins the upper end portion of the support member 20A and the end portion of the cover member 10 has a fitting groove 61 for fitting the cover member 10 and the end portion of the support member 20A, and both fitting grooves 61, respectively. Are formed of an extruded aluminum member having a hollow connecting portion 62 for connecting the two. In this case, the hollow connecting portion 62 is formed in a triangular shape in which two adjacent sides having the fitting groove 61 are formed at right angles, and an inclined surface 63 having a downward slope is formed at the upper end portion. Yes. Note that the end portion of the cover member 10 and the upper end portion of the support member 20A fitted in the fitting groove 61 are fixed by fastening bolts 64a and nuts 64b, respectively.

  By comprising as mentioned above, while joining of a cover, ie, the cover material 10, and the supporting member 20A can be made easy and firm, infiltration of rain water etc. from a junction part can be prevented.

  Further, as shown in FIGS. 11, 13, and 14, the roller 30 according to the second embodiment is formed of an aluminum extruded profile having a fitting groove 71 into which the lower end of the support member 20A is fitted. It is attached to the lower end of the beam member 70. The lower end portion of the support member 20A is fitted in the fitting groove 71 of the beam member 70, and is fixed by fastening the fixing bolt 72a and the nut 72b.

  In the second embodiment, the other parts are the same as those in the first embodiment, so the same parts are denoted by the same reference numerals and description thereof is omitted.

<Other embodiments>
In the above embodiment, the case where the cover is formed by the five cover members 10 has been described, but the cover may be formed by a plurality of cover members 10 other than the five cover members 10.

  Also in the first embodiment, the cover material 10 and the support member 20 can be joined using the joining member 60 as in the second embodiment.

  In addition, although the said embodiment demonstrated the cover which obstruct | occludes the opening part 2 of the water storage tank 1, of course, the cover based on this invention is applicable also to outdoor installation tanks other than a water storage tank.

It is a schematic plan view which shows the use condition (covering state) of 1st Embodiment of the cover for outdoor installation tanks concerning this invention. It is a schematic sectional drawing in alignment with the II line | wire of FIG. It is a schematic sectional drawing in alignment with the II-II line of FIG. It is sectional drawing which shows the high place side of the cover material and support member in 1st Embodiment of this invention. It is sectional drawing which shows the low side of the cover material and support member in 1st Embodiment of this invention. It is a principal part expanded sectional view of FIG. It is sectional drawing which shows the locking mechanism of the cover material in this invention. It is a side view which shows the support member and roller of the cover material located in the upper direction in FIG. It is a side view which shows the supporting member and roller of the cover material located in the downward direction in FIG. It is explanatory drawing (a) which shows the deflection | deviation of the cover material (simple beam of equal distribution load), and explanatory drawing (b) which shows the difference of a deflection angle and height. It is sectional drawing which shows the high side of the cover material and support member in 2nd Embodiment which concerns on this invention. It is sectional drawing which shows the low side of the cover material and support member in 2nd Embodiment which concerns on this invention. It is a side view which shows the supporting member and roller of the cover material which are located in the upper direction in FIG. It is a side view which shows the supporting member and roller of the cover material located in the downward direction in FIG.

Explanation of symbols

1 water tank (outdoor installation tank)
2 Openings 10 and 10A to 10E Cover material 11 Surface plate 12 Hollow core material 20 and 20A Support members 21A and 21B Extruded material 23 Fitting protrusion 24 Fitting protrusion 30 Roller 35 Guide roller 40 Rail 43 Standing convex piece 45 Lifting mother-child piece 60 Joining member 61 Fitting groove 62 Hollow connection part θ Water gradient h Difference in height between one end and the other end of the cover material

Claims (11)

In the cover for outdoor installation tank that covers the tank opening across the opposite edges of the outdoor installation tank such as water purification tank, water storage tank and water channel,
An outdoor installation tank characterized in that the cover material constituting the cover is formed by a honeycomb panel comprising a pair of aluminum surface plates and an aluminum hollow core material interposed between the surface plates. Cover for use. In the cover for outdoor installation tanks of Claim 1,
The said cover material has the inclination calculated | required in consideration of the bending of this cover material toward the other end from one end, The cover for outdoor installation tanks characterized by the above-mentioned. In the cover for outdoor installation tanks of Claim 2,
The cover for outdoor installation tanks characterized in that the water gradient at the low part of the cover material is 0% or more. In the cover for outdoor installation tanks of Claim 2,
A cover for outdoor installation tanks, wherein the water gradient at the low part is 1% or more. In the cover for outdoor installation tanks of Claim 2,
The inclination of the cover material is the difference in height between one end and the other end (h) {mm}, the total length of the cover material (l) {mm}, the sum of the weight of the cover material per unit length and the load load (W ) {N / mm}, Young's modulus of the entire cover material (E) {N / mm ² }, and secondary moment of inertia (I) {mm ⁴ } of the cover material,
h ≧ (Wl ⁴ / 24EI) + (l / 100)
The cover for outdoor installation tanks characterized by the above-mentioned. In the cover for outdoor installation tanks in any one of Claim 1 thru | or 5,
A cover for an outdoor installation tank, wherein a support member for supporting an end portion of the cover material is formed of extruded aluminum members that can be laminated with each other. In the cover for outdoor installation tanks in any one of Claim 1 thru | or 5,
The support member for supporting the end portion of the cover material is formed by a honeycomb panel including a pair of aluminum surface plates and an aluminum hollow core material interposed between the surface plates. Cover for outdoor installation tank. In the cover for outdoor installation tanks of Claim 6 or 7,
A joining member for joining the end portion of the cover member and the upper end portion of the support member; a fitting groove for fitting the end portion of the cover member and the support member; and a hollow connecting portion for connecting both fitting grooves; A cover for outdoor installation tanks, characterized in that it is formed of an aluminum extruded profile. In the cover for outdoor installation tanks in any one of Claim 6 thru | or 8,
A roller capable of rolling on the rail laid on the upper surface of the edge of the outdoor tub is attached to the lower ends of the both support members, and one lower portion of the support member is provided along the upper surface of the rail. A cover for outdoor installation tanks, characterized in that guide rollers that are slidably engaged are mounted on both side surfaces of the raised raised piece. In the cover for outdoor installation tanks according to claim 9,
The raised convex piece of the rail is provided with a locking groove that opens laterally, and a lifting prevention piece that is inserted into the locking groove is provided at the lower end of the support member. Cover for outdoor installation tank. In the cover for outdoor installation tanks in any one of Claims 1 thru | or 10,
A cover for an outdoor installation tank, wherein the cover is constituted by a plurality of the cover materials, and the adjacent cover materials are formed so that they can be stored and pulled out from each other.

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