JP2004162341A - Heliport - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heliport capable of preventing adverse effects resulting from extension/contraction of a deck member. <P>SOLUTION: In the heliport 1, a plurality of deck materials 10 having a long structure are laid over beams 20 forming a sill to constitute a heliport face. In this time, the longitudinally slidable deck material 10 is fixed on the sill. Even when the deck material 10 extends/contracts longitudinally due to temperature difference, as the deck material 10 slides against the beam 20, at least longitudinal extension/contraction is not restricted by the fixation of the beam 20. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a helipad that can suppress adverse effects due to expansion and contraction of a deck material.
[0002]
[Prior art]
In recent years, prefabricated heliports made of aluminum have been spreading in place of heliports made of asphalt or concrete. This heliport has various advantages, such as a prefabricated type, which can be easily installed on the roof or the ground of a building, and a light weight which can reduce the structural strength of the building, as compared with a heliport made of asphalt or the like. As for the above-mentioned conventional heliport, since a domestic application related to a solution problem to be described later has not been filed, the description of the related patent document is omitted.
[0003]
[Problems to be solved by the invention]
FIG. 17 is a perspective view showing a main part of a conventional heliport. In the conventional heliport 100, a bolt hole 111 is provided in a deck material 110 constituting a part of the helipad surface, and this is fixed directly to a beam 120 with a bolt 112. Here, the deck material 110 made of aluminum is significantly expanded and contracted in the longitudinal direction due to a temperature difference or the like accompanying a change in season. However, when the deck material 110 expands and contracts, there arise problems such as the deck material 110 being curved and the fixing bolt 112 being damaged.
[0004]
Then, this invention was made in view of the above, and an object of this invention is to provide the heliport which can suppress the bad effect accompanying expansion and contraction of a deck material.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a heliport according to the present invention includes a plurality of deck materials having a long structure and laid on a base to form a heliport surface, and wherein the deck materials are arranged in a longitudinal direction. It is fixed to the base by a slidable slide structure.
[0006]
According to the present invention, the deck material forming the heliport surface is slidably mounted on the base in the longitudinal direction. Then, even if the deck material expands and contracts in the longitudinal direction due to a temperature difference or the like, the deck material slides with respect to the base. Therefore, at least the expansion and contraction in the longitudinal direction is not restricted by fixing to the base. Thereby, there is an advantage that the adverse effects due to the expansion and contraction of the deck material can be effectively prevented. The base includes, for example, a beam provided on a building, a rooftop of the building, and the ground. Further, the slide structure may be any structure as long as the deck material can expand and contract in the longitudinal direction without being restricted, and the specific structure is not particularly limited. Accordingly, slide structures include slide structures known to those of skill in the art, as well as slide structures within the purview of those skilled in the art from known slide structures.
[0007]
Further, in the heliport according to the present invention, the slide structure includes fixing means provided on the base side and fixing the deck material to the base without restraining the deck material in a longitudinal direction.
[0008]
In the present invention, the fixing means is provided on the base side, and the fixing means fixes the deck material to the base without restraining in the longitudinal direction. According to the present invention, since the work of attaching the fixing means to the base is generally simple, there is an advantage that the slide structure can be easily formed on the existing base.
[0009]
In the heliport according to the present invention, the deck material is formed by extruding a slide portion integrally in a longitudinal direction.
[0010]
In this invention, the slide portion of the deck material is integrally formed in the longitudinal direction by extrusion. Thereby, for example, there is an advantage that the manufacturing process of the deck material can be shortened as compared with a case where a bolt hole is provided in the deck material.
[0011]
Further, in the heliport according to the present invention, the slide structure may include a first fitting portion formed in the deck material along a longitudinal direction, and a first fitting portion formed on the base and the second fitting portion being installed in the deck material. It is configured to include one fitting part and a second fitting part to be fitted.
[0012]
In the present invention, the first fitting is formed on the deck material side along the longitudinal direction, and the second fitting portion is formed on the base side. Then, a deck material is installed so that these are fitted. Accordingly, there is an advantage that wobbling of the deck material during use of the helipad can be suppressed by fitting the first fitting portion and the second fitting portion while allowing the deck material to slide in the longitudinal direction due to expansion and contraction. The first fitting portion and the second fitting portion include, for example, the concave portion 14 of the deck material and the convex portion 41 of the holding member.
[0013]
Further, the heliport according to the present invention, the slide structure is provided on the base and includes mooring means for mooring the deck material from a side in a longitudinal direction of the deck material.
[0014]
In the present invention, the mooring means is provided on the base, and the deck material is moored from the side. Even with such a configuration, the deck material can expand and contract in the longitudinal direction while being installed on the base. The shape of the mooring means is not particularly limited. For example, a member having a T-shape or an inverted L-shape may be provided on a base, and the deck material may be moored here.
[0015]
Further, in the heliport according to the present invention, the slide structure includes a holding means fixed to the base and holding at least a part of the deck material between the base and the base.
[0016]
According to the present invention, since the deck material is sandwiched and held between the base and the base, there is an advantage that the deck material can be firmly fixed to the base. The shape of the holding means is not particularly limited. For example, if the holding means has a plate shape, there is an advantage that the contact surface with the deck material is increased and the deck material can be held more firmly.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. It should be noted that the present invention is not limited by the embodiment. The components of the embodiments described below include components that can be easily replaced by those skilled in the art or components that are substantially the same.
[0018]
15 and 16 are an overall configuration diagram (FIG. 15) and an assembled perspective view (FIG. 16) showing the heliport according to the present embodiment. The heliport 1 employs a prefabricated type, and includes a deck material 10, small beams 20, and large beams 30. A plurality of the deck members 10 are bridged and spread on the small beams 20 to form a heliport surface H. By making the deck material 10 made of aluminum, the heliport 1 is significantly reduced in weight as compared with a heliport made of concrete or asphalt. The small beam 20 is made of H steel, and is bridged over the large beam 30 to form a base for the deck material 10. The reason why the small beam 20 is made of steel instead of aluminum is to maintain the structural strength of the heliport 1. Therefore, if the strength can be maintained, the small beams 20 may be made of aluminum to reduce the weight. The girder 30 is made of steel, and is provided on the ground or a rooftop floor of a building. The heliport 1 has a spring structure as a whole due to the above configuration, and absorbs a specific concentrated load and an impact load generated when the helicopter is attached and detached.
[0019]
1 and 2 are an assembly perspective view (FIG. 1) and a cross-sectional view (FIG. 2) showing a main part of the heliport according to the embodiment. FIG. 3 is a rear view showing the holding member shown in FIGS. 1 and 2. In the heliport 1, the deck member 10 is formed of a long member having a substantially T-shaped cross section, and is formed uniformly in the longitudinal direction by extrusion. The deck material 10 forms a part of the heliport surface H at the top 11 and is spread over a plurality of small beams 20 to form a substantially square flat heliport surface H (see FIGS. 15 and 16). The deck material 10 is installed on the beam 20 at the lower end of the leg portion 12 extending downward from the back side of the top portion 11. At this time, the deck member 10 is disposed orthogonally to the longitudinal direction of the small beam 20 (see FIG. 1). The deck material 10 has hem portions 13 on both sides of the lower end of the leg portion 12. A concave portion 14 is provided on the upper surface of the skirt portion 13 along the longitudinal direction of the deck material 10. The recess 14 is a narrow groove having a rectangular cross section, and is provided at a time when the deck material 10 is formed. However, the shape, position, size, and range of the recess 14 are not particularly limited.
[0020]
The deck member 10 is fixed on the beam 20 by pressing the hem portions 13, 13 on both sides from above with aluminum holding metal members 40, 40 having a substantially plate shape. The holding member 40 has the convex portions 41 at both edges on the rear side, and has a wide bolt hole 43 at the center. The holding member 40 is installed by inserting the convex portion 41 into the concave portion 14 of the deck material 10 from above and fitting the same, and the bolt 42 is inserted into the long hole 43 to be fixed on the small beam 20. In this configuration, even if the deck material 10 expands and contracts in the longitudinal direction due to a temperature difference, the convex portion 41 of the holding member 40 slides with respect to the concave portion 14 of the deck material 10. Not be restrained. Thereby, there is an advantage that problems due to expansion and contraction of the deck material 10 can be prevented. In addition, the distance between the adjacent deck members 10 and 10 is restricted by the convex portion 41 of the holding member 40 and is maintained at equal intervals. Thereby, there is an advantage that the arrangement of the deck members 10 can be adjusted to prevent variations in the heliport surface H.
[0021]
In this heliport 1, the shape of the deck material 10 is a substantially T-shaped cross section. However, the shape is not limited to this, and the shape of the deck material 10 may be such that the top 11 can form a part of the heliport surface H. Just fine. For example, an I-shaped cross section or an H-shaped cross section that is turned over may be used. When the deck member 10 has such a cross-sectional shape, the deck member 10 can be fixed to the small beam 20 by its leg 12, so that the holding member 40 can be prevented from projecting toward the report surface H, and the helipad surface can be prevented. There is an advantage that H can be flattened.
[0022]
Further, in the heliport 1, the deck material 10 is fixed on the small beam 20 by the urging force or the frictional force between the concave portion 14 and the convex portion 41 of the holding member 40. In order to strengthen the fixing force, Further, a holding bolt (not shown) may be provided at an arbitrary position. Thereby, there is an advantage that the deck material 10 can be securely fixed and the wobble of the deck material 10 when the heliport is used can be suppressed. However, the holding bolt is provided so that the deck material 10 can expand and contract in the longitudinal direction. In the heliport 1, the holding member 40 is fixed on the small beam 20 with the bolt 42, but this is preferable because it can be easily applied to the existing small beam 20. However, the present invention is not limited to this, and the holding fitting 40 may be fixed by welding.
[0023]
(Modification 1)
Further, in this heliport 1, the deck material 10 is provided on the small beam 20, but the present invention is not limited to this, and the deck material 10 may be directly provided on the ground or the roof floor. FIG. 4 is a front view showing an example of the heliport according to the first modification. In this heliport 2, the deck members 10 are arranged directly on the ground G, and the skirt 13 is pressed by the holding metal 40, and the holding metal 40 is fixed to the ground G. Thereby, the deck material 10 is fixedly installed on the ground G. Such a heliport 2 does not require a large base composed of the girders 30 and the girders 20, and thus has an advantage that it can be easily installed. Furthermore, if each of the deck materials 10 has a size and weight that can be carried by a person, it can be installed by human power. Therefore, there is an advantage that the heliport 1 can be installed more easily and at an arbitrary place.
[0024]
(Modification 2)
Further, in the heliport 1, the concave portion 14 is provided on the deck material 10 side and the convex portion 41 is provided on the holding metal member 40 side, and these are fitted together. However, the slide structure that can be fitted is not limited to this. Alternatively, a structure obvious to those skilled in the art may be adopted. Further, the position, size, and range of the concave portion 14 and the convex portion 41 are not particularly limited, and can be arbitrarily selected as long as the slide structure can be realized. FIG. 5 is a perspective view showing the arrangement of the deck material of the heliport according to the second modification. FIG. 6 is a rear view (a) and a front view (b) of the holding metal used for the deck material shown in FIG. ). In these drawings, the same components as those of the heliport 1 according to the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. In this heliport 2, the deck material 52 has a convex portion 51 along the longitudinal direction of the skirt portion 13 instead of the concave portion 14 (see FIG. 1) (see FIG. 5). In addition, instead of the convex portion 41 (see FIGS. 1 and 3), the holding member 52 has a concave portion 53 that fits with the convex portion 51 near both edges on the rear side (see FIG. 6). The deck member 50 is fixedly installed on the small beam 20 by fitting the convex portion 51 into the concave portion 53 of the holding metal member 52 and connecting the holding metal member 52 to the small beam 20 with the bolt 42. Is done. As described above, any of the fitting portions of the deck member 52 and the holding member 52 may be a concave portion or a convex portion.
[0025]
(Modification 3)
FIG. 7 is a front view showing a main part of the heliport according to the third modification. 8 and 9 are an enlarged view (FIG. 8) and a side view (FIG. 9) showing a connection portion of the deck material shown in FIG. 7. FIG. 10 is a plan view showing the holding bracket shown in FIGS. 7 and 8. In these drawings, the same components as those of the heliport 1 according to the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. In this heliport 3, the deck member 60 has a concave portion 61 different from the concave portion 14 (see FIG. 1) in the skirt portion 13 (see FIGS. 7 to 9). The concave portion 61 has a rectangular cross-sectional shape in which the bottom portion is widened, and is provided on the side surface of the skirt portion 13 along the longitudinal direction. In addition, instead of the protrusion 41 (see FIGS. 1 and 3), the holding member 62 has a protrusion 63 on the side surface thereof to be fitted into the recess 61 (see FIGS. 7, 8 and 10). Then, the deck member 60 is fixed to the small beam 20 by fitting the convex portion 63 of the holding metal member 62 into the concave portion 61 from the front and fixing the holding metal member 62 on the small beam 20 with the bolt 42. Installed (see FIGS. 7 and 8). Even with such a configuration, the deck material 60 can freely expand and contract by sliding in the longitudinal direction.
[0026]
Further, in Modification 3, since the skirt portions 13 of the deck members 60 are connected to each other in the plane direction via the holding members 62, the connection between the deck members 60 becomes strong, and the strength of the helipad surface H is stabilized. There is an advantage that can be made. Further, since the connection angle of the deck members 60 with respect to the plane direction can be restricted to some extent by the fitting structure of the concave portion 61 and the convex portion 63, there is an advantage that the flatness of the heliport surface H can be improved. In particular, when the heliport 3 is temporarily installed on the uneven ground or the like instead of on the small beam 20, there is an advantage that the flatness of the heliport surface H can be further improved. In addition, since the concave portion 61 is provided on the deck material 60 side, there is an advantage that the deck material 60 can be lightened and transported to some extent. In particular, when the component material of the heliport 3 is transported by human power, the advantage that the deck material 60 which is heavier than other materials can be reduced in weight is useful.
[0027]
(Modification 4)
FIG. 11 is a front view showing a main part of the heliport according to the fourth modification. In the figure, the same components as those of the heliport 1 according to the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. The heliport 4 is different from the heliport 1 of the embodiment in that the deck material 10 and the concave and convex portions 14 and 41 of the holding member 40 are omitted. The deck member 70 is put on the sleeve 72 of the holding member 71 from above the hem portion 13, and the holding member 71 is fixed on the beam by the bolt 42, so that the deck member 70 is sandwiched between the sleeve 72 and the beam 20. It is. As a result, the deck member 70 receives the urging force and the frictional force from the holding member 71 and is firmly fixed on the small beam 20. Further, in the fourth modification, since the concave portion 14 is not required in the deck material 70, there is an advantage that the slide structure of the deck material 70 can be easily formed by applying the present invention to an existing deck material having no concave portion 14.
[0028]
In the fourth modification, the urging force of the holding member 71 against the deck member 70 may be further omitted, and the holding member 71 may function only as a mooring means for preventing the deck member 70 from shifting in the width direction. good. As described above, even if the deck member 70 is not sandwiched and held, if the holding member 71 is adjusted to have a predetermined restraining force when the deck member 70 is moored, the wobble of the deck member 70 can be sufficiently and sufficiently prevented. There are advantages. Also, there is an advantage that the holding fitting 71 can be easily installed as compared with the case where the urging force is provided. In the fourth modification, the shape of the holding metal member 71 is not particularly limited. For example, if the deck member 70 is merely moored, an L-shaped fastener 73 may be used (see FIG. 12). Regardless of Modification 4, the skirt 13 of the deck member 70 and the sleeve 72 of the holding member 40 may be engaged by a consensus structure (see FIG. 12).
[0029]
Further, the slide structures of the deck material according to the above embodiment and the modified examples 1 to 4 thereof may be configured to be combined with each other (not shown). Also, these slide structures may have overlapping actions, effects and variations.
[0030]
(Modification 5)
Further, regardless of the above-described embodiment and its modified examples 1 to 4, the slide structure may be formed by a simple configuration in which a conventional heliport is improved. FIG. 14 is a perspective view showing a main part of a heliport according to the fifth modification. In the figure, the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. The heliport 5 is characterized in that the diameter of the bolt hole 111 is increased in the longitudinal direction of the deck material 80 as compared with the conventional heliport 1. In such a configuration, the deck member 80 can slide by the length L of the bolt hole 81, so that there is an advantage that expansion and contraction of the deck member 10 can be effectively absorbed.
[0031]
In the heliport 5, since a large number of large bolt holes 81 are provided in the deck material 10, the strength of the deck material 10 may be reduced. In this regard, in the heliport 1 according to the above embodiment, since the bolt hole 81 is not provided in the deck material 10, there is an advantage that the strength of the deck material 10 is excellent. In the heliport 5, the amount by which the deck material 10 can expand and contract is limited by the length L of the bolt hole 81. In this regard, in the heliport 1, the concave portion 14 of the deck member 10 can slide with almost no restriction with respect to the convex portion 41 of the holding member 40, and therefore, there is an advantage that the amount of expansion and contraction of the deck member 10 is large. Further, in the heliport 5, another step of providing the bolt holes 81 in the deck material 10 after the deck material 110 is extruded is required. In this regard, in the heliport 1, since the concave portion 14 can be formed at a time when the deck material 10 is extruded, there is an advantage that such another step can be omitted.
[0032]
【The invention's effect】
As described above, according to the heliport according to the present invention, the deck material constituting the heliport surface is installed so as to be slidable in the longitudinal direction with respect to the base. Even so, there is an advantage that the deck material slides against the base, and the adverse effects due to the expansion and contraction of the deck material can be effectively prevented.
[Brief description of the drawings]
FIG. 1 is an assembled perspective view showing a main part of a heliport according to an embodiment.
FIG. 2 is a sectional view showing a main part of the heliport according to the embodiment;
FIG. 3 is a rear view showing the holding member shown in FIGS. 1 and 2;
FIG. 4 is a front view showing an example of a heliport according to the first modification;
FIG. 5 is a perspective view showing an arrangement of a deck material of a heliport according to a second modification;
FIG. 6 is a rear view (a) and a front view (b) of a holding metal used for the deck material shown in FIG. 5;
FIG. 7 is a front view showing a main part of a heliport according to a third modification;
FIG. 8 is an enlarged view showing a connecting portion of the deck material shown in FIG. 7;
FIG. 9 is a side view showing a connection portion of the deck material shown in FIG. 7;
FIG. 10 is a plan view showing the holding bracket shown in FIGS. 7 and 8;
FIG. 11 is a front view showing a main part of a heliport according to a fourth modification;
FIG. 12 is a front view showing a main part of a heliport according to a fourth modification;
FIG. 13 is a front view showing a main part of a heliport according to a fourth modification;
FIG. 14 is a perspective view showing a main part of a heliport according to a fifth modification;
FIG. 15 is an overall configuration diagram showing a heliport according to the embodiment.
FIG. 16 is an assembled perspective view showing the heliport according to the embodiment.
FIG. 17 is a perspective view showing a main part of a conventional heliport.
[Explanation of symbols]
1-5 Heliport 10, 50, 52, 60, 70, 80 Deck material 40, 52, 62, 71 Hold down metal fitting 71 Metal fitting 72 Sleeve 73 Tool 80 Deck material H Heliport surface

Claims (6)

Including a plurality of deck materials having a long structure and laid on the base to constitute a heliport surface, and
A heliport in which the deck material is fixed to the base by a slide structure that is slidable in a longitudinal direction. 2. The heliport according to claim 1, wherein the slide structure includes fixing means provided on the base side and fixing the deck material to the base without restraining the deck material in a longitudinal direction. 3. The helipad according to claim 1, wherein the deck material is formed by extruding a slide portion integrally in a longitudinal direction. The slide structure includes a first fitting portion formed on the deck material along a longitudinal direction, and a first fitting portion formed on the base and fitted with the first fitting portion in an installed state of the deck material. The heliport according to any one of claims 1 to 3, wherein the heliport includes two fitting portions. The slide structure according to any one of claims 1 to 3, wherein the slide structure is provided on the base and includes mooring means for mooring the deck material from a side with respect to a longitudinal direction of the deck material. heliport. The slide structure according to any one of claims 1 to 3, wherein the slide structure is fixed to the base and includes a holding unit configured to hold at least a part of the deck material between the base and the base. heliport.

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