JP2018062816A - Frame material and structure using the frame material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frame material which allows a surface plate material to be easily and accurately fastened to a vertical member and a horizontal member when a structure is manufactured, and to provide a structure capable of easily assembled using the frame material.SOLUTION: A frame material has: a frame material body 2 having a surface plate material receiving surface 20 arranged so as to face a rear face 41 of a floor plate 4a; and a plurality of plate material fastening portions 31 each of which has a leg portion 31a provided so that its longitudinal axis is provided so as to be orthogonal to a longitudinal axis of the surface plate material receiving surface 20, and a fastening piece 31b provided on the tip of the leg portion 31a, enter engagement grooves 42 previously provided on a floor material 4a while elastically deformed, and is fastened by a wall surface of the engagement grooves 42, with the plate material fastening portions aligned in the longitudinal axis direction of the surface plate material receiving surface 20 so as to be matched with the fixed pitches of the floor plate 4a.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a frame material used as a vertical material such as a pillar supporting a plate material, or a horizontal material such as joist, large draw, etc., provided to intersect with a plate material constituting a wall, fence or floor of a structure. It relates to the structure using.

  For example, the deck floor is laid out with the plate material that constitutes the floor so that it intersects with the horizontal material such as joists, large draws, etc., and the plate material is fixed to the horizontal material with nails or screws (Patent Document) 1).

JP 2007-239370 A

However, it is troublesome to fix the plate material to the horizontal member or the vertical member one by one using a nail, a screw or the like, and skill is required to fix the plate member accurately.
In view of the above circumstances, the present invention can be easily assembled using a frame material capable of easily and accurately fixing a surface plate material to a vertical material or a horizontal material when producing a structure. The purpose is to provide a structure.

  In order to achieve the above object, a frame material according to the present invention is a frame material that is used for a vertical member or a horizontal member of a structure and supports a surface plate member of the structure, and that faces the back surface of the surface plate member. A frame material body having a surface plate material receiving surface, a leg portion provided so that a longitudinal axis thereof is orthogonal to the longitudinal axis of the surface plate material receiving surface, and a tip portion of the leg portion, It has an elastic locking part that enters into the fitting groove provided in advance while being elastically deformed and is locked by the wall surface of the fitting groove, and has a fixed pitch of the surface plate material in the longitudinal axis direction of the surface plate material receiving surface. It is characterized by having a plurality of plate material locking portions arranged in parallel.

In the present invention, the plate material locking portion is not particularly limited. For example, the two locking plates extending from both sides of the leg portion in the short direction so that the elastic locking portion is separated toward the base end portion of the leg portion. It is preferable to have a configuration in which the pieces are formed.
In other words, the elastic locking portion elastically deforms in a balanced manner on the left and right sides across the leg portion, and can smoothly fit into the fitting groove, and after fitting up to a predetermined fitting position, the wall surface of the fitting groove in a balanced manner The surface plate can be fixed in a stable state.

In the present invention, a plurality of elastic locking portions may be provided intermittently in the longitudinal direction of the leg portion.
The lower end of the plate member locking portion is supported by a base portion having a width that protrudes in the short axis direction of the leg portion, and a portion protruding from the lower end of the leg portion of the base portion is connected to the plate member locking portion. From the leg portion to a configuration that includes an urging means that abuts the back surface of the surface plate material to be locked and urges the surface plate material toward the distal end side of the leg portion, or a position that does not hinder the locking of the elastic locking portion. It is good also as a structure provided with the lateral slip prevention rib of the surface board material extended so that the longitudinal axis of a leg part may be crossed.

  In the present invention, the frame material body is not particularly limited, but an extrusion mold material of aluminum or aluminum alloy is suitable, and the surface may be coated.

In the present invention, the frame material is not particularly limited. For example, a resin molded product in which plate material locking portions are arranged at predetermined intervals is formed in advance, and the resin molded product is fixed to the surface plate material receiving surface of the frame material main body. Can be manufactured by.
In the present invention, the surface plate material receiving surface means a surface that receives a load applied to the surface plate material, and the back surface of the surface plate material may not be in direct contact.

  In the structure according to the present invention, the plurality of frame members not provided with the lateral slip prevention ribs are arranged as horizontal members or vertical members so that the longitudinal axes of the leg portions of the plate member locking portions are linearly arranged, and the back surface The elastic engagement portion of the plate material engagement portion on the side has a narrow portion that can be passed while being elastically deformed on the inlet side, and the elastic member that is elastically restored by passing through the narrow portion on the back side from the narrow portion. A plurality of surface plate materials provided with continuous engagement grooves provided in the longitudinal direction with widened portions that are locked by the wall surfaces of the stop portions straddle each frame material and are arranged side by side in the longitudinal direction of the frame material. At the same time, the elastic locking portions supported by the leg portions in which the longitudinal axes are linearly arranged are supported and fixed to the frame members in a state of being fitted into the widened portion.

  The structure according to the present invention includes a plurality of frame materials including the frame material having at least one lateral slip prevention rib among the frame materials, wherein the longitudinal axis of the leg portion of the plate material locking portion is linear. It is arranged as a horizontal member or a vertical member so as to be lined up with each other, and has a narrow portion on the inlet side on the back surface side through which the elastic latching portion of the plate material latching portion can be passed while being elastically deformed. In addition, a fitting groove having a widened portion that is elastically restored by passing through a narrow portion and is elastically restored by a wall surface is continuously provided in the longitudinal direction, and corresponds to the lateral slip prevention rib of the frame material. A plurality of surface plate members in which rib fitting grooves are formed at positions where they extend are arranged on each frame material and arranged side by side in the longitudinal direction of the frame material, and are supported by leg portions in which the longitudinal axis is linearly arranged. When each elastic locking portion is fitted into the widened portion, To is characterized in that it is supported by and fixed to the frame member with the lateral displacement preventing rib state of fitted into the rib fitting groove.

  The structure according to the present invention is not particularly limited as long as the frame material of the present invention is used as a vertical member or a horizontal member, and examples thereof include an edge stand, a chair, a table, a deck floor, and a fence.

  The material of the surface plate material used in the structure according to the present invention is not particularly limited, and examples include natural wood, synthetic wood, resin, metal material molded products, and composite materials thereof, and the surface is coated or resin-coated. It doesn't matter.

As described above, the frame material according to the present invention includes a frame material main body having a surface plate material receiving surface arranged to face the back surface of the surface plate material, and a longitudinal axis orthogonal to the longitudinal axis of the surface plate material receiving surface. The elastic latch that is provided at the front end of the leg and the front end of the leg, enters into the fitting groove provided in advance on the surface plate material while being elastically deformed, and is locked at the fitting groove wall surface. And having a plurality of plate material locking portions arranged side by side in accordance with the fixed pitch of the surface plate material in the longitudinal axis direction of the surface plate material receiving surface. The elastic locking part is elastically fitted into the fitting groove provided on the back side of the front plate material in a state where the horizontal members are arranged in parallel and the longitudinal axes of the leg portions of the plate material locking portion are arranged linearly. Pushing to the locking position while deforming and locking to the wall of the fitting groove Thus it can be supported and fixed to the frame member.
That is, anyone can accurately and easily support and fix the surface plate material to the vertical member or the horizontal member without using nails or screws.

It is a principal part top view showing 1st Embodiment of the frame material of this invention. It is a side view of FIG. FIG. 2 is a perspective view of FIG. 1. It is a side view of the frame material showing the state which attached the surface board material to the frame material of FIGS. FIG. 4A is a side view and FIG. 4B is a bottom view of the surface plate material of FIG. 4. It is a top view of the edge stand which is an example of the structure using the frame material of FIGS. 1-3. It is a side view of the rim stand of FIG. It is XX sectional drawing of the rim base of FIG. It is a perspective view of the rim stand of FIG. It is a figure showing the leg part of the edge stand of FIG. 6, Comprising: The figure (a) is the top view, The figure (b) is the side view, The figure (c) is the front view. It is a principal part top view showing 2nd Embodiment of the frame material of this invention. It is a side view of FIG. FIG. 11A is a side view of the surface plate member mounted on the frame member of FIG. 11, and FIG. 11B is a bottom view thereof. It is a principal part top view showing 3rd Embodiment of the frame material of this invention. It is a side view of FIG. FIG. 12 is a side view showing a state in which a floor plate of another aspect is supported and fixed to the frame material of FIG. 11.

Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof.
1 to 3 show a first embodiment of a frame material according to the present invention.

As shown in FIGS. 1 to 3, the frame material 1 a includes a frame material main body 2 and a plate material locking member 3 a.
The frame material main body 2 is surface-coated on an extrusion mold material of aluminum or aluminum alloy, and one surface (upper surface in FIGS. 1 to 3) has a surface plate material receiving portion 20, and this tubular portion 21 is provided with a skirt portion 22 extending from both side surfaces to the back side.

The plate material locking member 3a is a resin molded product, and includes a plate material locking portion 31, a base portion 32, a first connection portion 33a, and a second connection portion 33b.
The plate material locking portion 31 includes a leg portion 31a and four locking pieces 31b forming two elastic locking portions.

The leg portion 31 a is provided so that its longitudinal axis direction is orthogonal to the longitudinal axis direction of the frame material body 2.
The four locking pieces 31b are arranged in pairs so as to be paired on both sides in the longitudinal direction of the leg portion 31a, respectively, and elastic locking portions are formed on both sides in the longitudinal direction of the leg portion 31a, respectively. The pair of two locking pieces 31b sandwich the leg portion 31a from both sides from the short side direction, and the distance from the leg portion 31a increases toward the base end portion of the leg portion 31a. It is provided so as to form an arrow shape together with the portion 31a.

The base portion 32 is provided so as to support the base end of the leg portion 31a, and is provided with a screw hole 32b on one side in the width direction, and the screw 35 inserted into the screw hole 32b is inserted into the frame material body 2. It is fixed to the frame material main body 2 by being screwed into the frame.
Further, the two adjacent base portions 32 are provided such that the screw holes 32b are arranged on opposite sides with the leg portion 31a interposed therebetween.

The first connecting part 33 a and the second connecting part 33 b are alternately arranged between the base part 32 and the base part 32 so as to connect the base part 32 and the base part 32.
The first connecting portion 33a is longer than the second connecting portion 33b, and the base portion 32 and the base portion 32 are arranged in a state where the surface of the base portion 32 on which the screw hole 32b is formed faces each other. Are connected.
On the other hand, the 2nd connection part 33b has connected the base part 32 and the base part 32 in the state by which the surface by which the screw hole 32b of the base part 32 is not formed is arrange | positioned facing.
In other words, the distance between the leg portions 31a connected by the first connecting portion 33a is longer than the distance between the leg portions 31a connected by the second connecting portion 33b.

The frame material 1a is configured as described above. For example, the frame material 1a supports the floor board 4a shown in FIG. 4 as the surface board material of the kit base 5 as the structure shown in FIGS. It can be used as a cross member.
That is, the edge base 5 includes three frame members 1a, a total of nine legs 54 (only a part of which are shown in the figure) that support each frame member 1a at both ends and an intermediate portion of each frame member 1a, Floor plate 4a, eight L-shaped metal fittings 55 shown in FIG. 10 (only four are shown in FIG. 10), two first side plates 51, and two second side plates 52. Has been.

The three frame members 1a have the same length.
Of the three, the frame material main body 2 of one frame material 1a is formed with screw receiving portions 55b of screws 53 of the second side plate 52 to be described later on both side surfaces of the cylindrical portion 21 at both ends in the longitudinal direction. An L-shaped side 55a of the L-shaped metal fitting 55 is fixed by a screw 55c so as to be flush with the end face of the frame material body 2.
Further, the other two frame members 1a and the frame member main body 2 have L-shaped brackets for forming the screw receiving portions 55b of the screws 53 of the second side plate 52 on one side surface of the tubular portion 21 at both ends in the longitudinal direction. 55 is fixed by a screw 55c so that one side 55a of the L-shape is flush with the end surface of the frame material body 2.

Each floor plate 4a is formed by processing natural wood, and is formed in the same shape, and two fitting grooves 42 parallel to the longitudinal axis of the floor plate 4a are formed in the bottom surface 41 thereof. .
The interval between the fitting groove 42 and the fitting groove 42 matches the pitch of the leg portions 31a connected by the first connecting portion 33a.
Each fitting groove 42 is open at both ends of the floor plate 4a, and the entrance allows the elastically deformed locking pieces 31b and leg portions 31a to pass through. The pair of locking pieces 31b are fitted into each other, and a widened portion 42b having a substantially trapezoidal shape in a side view is provided in which the front end of the locking piece 31b is locked to the wall surface and the floor plate 4a is fixedly supported.

The 1st side board 51 is obtained by processing the same natural wood as the floor board 4a, and is formed in the same length as the floor board 4a.
The second side plate 52 is obtained by processing the same natural wood as the floor plate 4a, and is longer than the floor plate 4a by a length corresponding to twice the thickness of the first side plate 51.
The legs 54 are formed of a cylindrical body whose surface is coated on an extrusion mold material of aluminum or aluminum alloy having a size that fits between the skirt portions 22 of the frame material body 2.

In the three frame members 1a, the frame member 1a with the L-shaped metal fittings 55 screwed to both sides of the tubular part 21 is at the center, and the other two frame members 1a are on one side of the tubular part 21. The L-shaped metal fitting 55 fixed with screws is arranged so as to face the L-shaped metal fitting 55 of the central frame member 1a, and both ends in the longitudinal direction are connected by the second side plates 52, respectively.
The second side plate 52 protrudes from the side walls of the frame material body 2 on both sides in the longitudinal direction by the thickness of the first side plate 51, and the upper end is locked to the plate material locking portion 31 from the upper surface of the frame material body 2. It is fixed by screwing screws 53 into the screw receiving portions 55b of the four L-shaped brackets 55 so as to protrude from the surface plate material receiving surface 20 of the frame material body 2 by the length up to the upper surface of the floor plate 4a.

The first side plate 51 is the length from the upper surface of the frame material body 2 to the upper surface of the floor plate 4a locked to the plate material locking portion 31 on the side wall surface of the frame material body 2 of the frame material 1a arranged on both sides. The screw is fixed so as to protrude from the upper surface of the frame body 2.
The legs 54 are screwed by screws 54a screwed from the side of the skirt portion 22 at the both ends and the middle portion of the frame material body 2 of the three frame materials 1a and the upper ends thereof are fitted between the skirt portion 22 and the skirt portion 22. Fixed.

  The floor plate 4a is arranged so that the entrance of the fitting groove 42 faces directly above the longitudinal axis of the leg portion 31a of the corresponding plate member locking portion 31 of the three frame members 1a assembled in a frame shape as described above. In this state, the locking piece 31b is pushed toward the front plate member receiving surface 20 until it enters the widened portion 42b, so that it is supported and fixed to the three frame members 1a.

As described above, the frame material 1a is provided with the plate material locking portions 31 in advance according to the pitch of the fitting grooves 42 of the floor plate 4a.
Therefore, if a plurality of frame members 1a are arranged in parallel so that the longitudinal axes of the leg portions 31a of the plate member locking portion 31 are aligned, it is possible to accurately and easily without using nails or screws. The floor plate 4a can be supported and fixed to the frame material at a predetermined interval.

Further, according to the structure of the edge base 5, the fitting grooves 42 of the floor plate 4a are open at both ends. Therefore, if at least one of the first side plates 51 is removed, the side of the first side plate 51 from which the floor plate 4a is removed. It becomes possible to slide to.
Therefore, even if the floor plate 4a needs to be replaced, the floor plate 4a can be easily removed by removing the first side plate 51 and sliding only the floor plate 4a that needs to be replaced.

And if the new floor board 4a is attached to the position of the removed floor board 4a like the above, repair of the edge base 5 can be performed easily.
Moreover, since the edge stand 5 is provided with the 1st side plate 51 as mentioned above, unless the 1st side plate 51 is removed, the floor board 4a does not detach | leave easily.

11 and 12 show a second embodiment of the frame material according to the present invention.
As shown in FIGS. 11 and 12, the frame material 1b is the same as the frame material 1a except that the leg portion 31a of the plate material locking member 3b is provided with a lateral displacement prevention rib 36.
That is, the lateral slip prevention rib 36 is projected in a flat plate shape on the side where the screw hole 32b is not provided at the center in the longitudinal direction of the leg portion 31a shifted from the locking piece 31b.

And this frame material 1b prevents the lateral displacement of the floor plate 4b as follows without using the first side plate 51 by using the floor plate 4b provided with the rib fitting groove 44 as shown in FIG. can do.
A plurality of frame members 1b are provided at predetermined intervals in parallel with the frame member 1a so that the longitudinal axes of the leg portions 31a are in a straight line in the same manner as the frame member 1a. On the other hand, as shown in FIG. A flooring 4b provided with a laterally offset rib fitting groove 44 so as to communicate with the fitting groove at a corresponding portion is produced. The floor plate 4b is supported and fixed to the frame material 1b so as to be fitted in the lateral displacement rib fitting groove 44.

That is, since the lateral displacement prevention rib 36 is fitted in the lateral displacement rib fitting groove 44, the floor plate 4b does not cause lateral displacement even when a force in the lateral displacement direction is applied to the floor plate 4b.
Therefore, the number of parts of the kit can be reduced.

14 and 15 show a third embodiment of the frame material according to the present invention.
As shown in FIGS. 14 and 15, this frame material 1c has screw holes provided in the base portion 32 of the plate material locking member 3c. The base portion 32 is fixed to the frame material main body 2 by adhesion. In addition, an elastic piece 37 as an urging means provided in a cut-and-raised shape at a position that does not inhibit the fitting of the locking piece 31b facing the longitudinal direction center of the leg portion 31a into the fitting groove 42 is provided to the leg portion 31a. The frame material 1a is the same as the frame material 1a except that it is provided so as to be sandwiched.

That is, the frame material 1c can support and fix the floor material 4a in the same manner as the frame material 1a, and the plate material locking portion 31 is attached to the back surface of the floor plate 4a before the locking piece 31b reaches the widened portion 42b. While abutting and elastically deforming the elastic piece 37, the floor plate 4a is pushed down until the locking piece 31b completely enters the widened portion 42b.
Therefore, the floor plate 4a is always urged upward by the elastic piece 37 in a state where the locking piece 31b portion is completely in the widened portion 42b, and can be kept firmly fixed.
Moreover, when the elastic piece 37 also works as a cushioning material and sits on the floor board 4a or walks on the floor board 4a, the feeling of use is improved.

FIG. 16 shows another aspect of the floor board used for the frame material 1b of FIG.
As shown in FIG. 16, this floor board 4c is the floor board shown in FIG. 13, except that the entrance side of the fitting groove 45 is a wide part 45a and the back side of the fitting groove 45 is a narrow part 45b. It is the same as 4b.

That is, the width W1 of the narrow portion 44b is such that the locking piece 31b is elastically deformed and is brought into pressure contact with the wall surface of the narrow portion 44b by its elastic restoring force, and the floor plate 4c is not detached in normal use. It has become.
On the other hand, the wide portion 44a has a width W2 in which the elastically restored locking piece 31b does not contact the wall surface, and the narrow portion 44b side is tapered.

  Therefore, when a force not applied in normal use is applied above the floor plate 4c and the floor plate 4c is pulled up to the extent that the lower end of the locking piece 31b enters the tapered portion of the wide portion 44b, the elastic restoring force of the locking piece 31b makes it easy. The floor plate 4c can be removed.

The present invention is not limited to the above embodiment. For example, in the above embodiment, the frame material main body includes the skirt portion, but the skirt portion may not be provided.
Further, in the above embodiment, the plate member locking member has the base portion fixed to the frame material main body by screws, but the base portion may be fixed by welding or an adhesive.

In the above embodiment, two fitting grooves are formed on the bottom surface of the floor plate, but the fitting groove may be one or three or more.
In the above embodiment, a kit is used. However, a long frame material and a surface plate material may be appropriately cut at a construction site to a predetermined length as necessary.

In the above embodiment, the floor board is natural wood, but it may be made of synthetic wood, resin, metal, or a composite material of these, and the surface may be painted. It may be applied, a metal reinforcing layer may be provided on the surface, or may be coated with a resin.
In the above embodiment, one elastic locking portion is formed by two locking pieces. However, one locking piece may be used, or a protrusion made of an elastic material protruding from the leg portion may be provided. It may be.

  Moreover, you may provide both the horizontal slip prevention rib of the said 2nd Embodiment, and an elastic piece.

1a, 1b, 1c Frame material 2 Frame material body 20 Surface plate material receiving portion 21 Cylindrical portion 22 Skirt portions 3a, 3b, 3c Plate material locking member 31 Plate material locking portion 31a Leg portion 31b Locking piece (elastic locking portion)
32 base portion 32b screw hole 33a first connecting portion 33b second connecting portion 35 screw 36 lateral displacement prevention rib 37 elastic piece (biasing means)
4a, 4b, 4c Floor board (surface board)
41 Bottom 42 Fitting groove 42a Narrow part 42b Wide part 44 Rib fitting groove 45 Fitting groove 45a Wide part 45b Narrow part 5 Edge (structure)
51 First side plate 52 Second side plate 53 Screw 54 Leg 54a Screw 55 L-shaped metal fitting 55a One side 55b of L-shape Screw receiving portion 55c Screw

Claims (9)

A frame material that is used for vertical or horizontal members of a structure and supports the surface plate of the structure,
A frame material body having a surface plate material receiving surface disposed to face the back surface of the surface plate material;
Legs provided so that the longitudinal axis is orthogonal to the longitudinal axis of the surface plate material receiving surface and the front end portion of the legs are inserted into a fitting groove provided in advance on the surface plate material while being elastically deformed. And having a plurality of plate material locking portions arranged in parallel with the fixed pitch of the surface plate material in the longitudinal axis direction of the surface plate material receiving surface. A frame material characterized by   The frame material according to claim 1, wherein the elastic locking portion is formed of two locking pieces extending from both sides of the leg portion in the short direction so as to be separated toward the base end portion of the leg portion. The lower end of the plate material locking part is supported by a base part having a width that protrudes in the short axis direction of the leg part.
A biasing means is provided on a portion of the base portion that protrudes from the lower end of the leg portion and abuts against the back surface of the surface plate member that is locked by the plate member locking portion, and biases the surface plate member toward the distal end side of the leg portion. The frame material according to claim 1 or 2.   The plate material locking portion includes a lateral displacement prevention rib for a surface plate material extending from the leg portion so as to intersect the longitudinal axis of the leg portion at a position where the locking of the elastic locking portion is not hindered. Item 4. The frame material according to Item 3.   The frame material according to any one of claims 1 to 4, wherein the frame material body is an extrusion mold material of aluminum or an aluminum alloy.   The plate material locking portion is formed by fixing a resin molded product in which the plate material locking portion is connected via a connecting portion so as to have a fixed pitch of the surface plate material to the surface plate material receiving surface of the frame material body. The frame material according to any one of claims 1 to 5. The frame material according to any one of claims 1 to 3 is arranged as a horizontal member or a vertical member so that the longitudinal axes of the leg portions of the plate member locking portion are linearly arranged,
On the back side, the elastic locking part of the plate material locking part has a narrow part on the inlet side that can pass while elastically deforming, and elastically restored by passing through the narrow part on the back side from the narrow part. A plurality of surface plate materials provided with a fitting groove continuously provided in the longitudinal direction having a widened portion where the locking portion is locked by the wall surface,
While straddling each frame material and arranged side by side in the longitudinal direction of the frame material, each elastic locking portion supported by the leg portion in which the longitudinal axis is arranged in a straight line is fitted in the widened portion. A structure characterized by being supported and fixed to each frame material. Among the frame materials according to any one of claims 1 to 4, a plurality of frame materials including at least the frame material according to claim 4 are arranged such that the longitudinal axes of the leg portions of the plate material locking portions are linearly arranged. Arranged as crossbar or vertical bar,
On the back side, the elastic locking part of the plate material locking part has a narrow part on the inlet side that can pass while elastically deforming, and elastically restored by passing through the narrow part on the back side from the narrow part. 5. A fitting groove having a widened portion with which the locking portion is locked by the wall surface is provided continuously in the longitudinal direction, and the rib fitting groove is provided at a position corresponding to the lateral slip prevention rib of the frame material according to claim 4. A plurality of surface plate materials formed,
While straddling each frame material and arranged side by side in the longitudinal direction of the frame material, each elastic locking portion supported by the leg portion in which the longitudinal axis is aligned in a straight line fits into the widened portion, and A structure characterized in that a lateral slip prevention rib is supported and fixed to each frame member in a state of being fitted in the rib fitting groove.   The structure according to claim 7 or 8, wherein the structure is any one selected from the group consisting of an edge stand, a chair, a table, a deck floor, and a fence.

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