JP2019024441A - Grate-state support structure - Google Patents

Abstract

To provide a grate-state support structure for easily and surely fixing and supporting a grate-state body for culturing plants along a target wall state face.SOLUTION: One sides of L-shaped cross section support steel materials L are fixed horizontally to a target wall state face W at a vertical equal interval, and the other sides having notch parts C at an equal interval are protruded horizontally as plate-state parts S which is flat. Out of grate-state bodies T formed of a vertical material V and lateral material H, a prescribed lateral material H is supported to a top face of each plate-state part S, and a direct under part on the vertical material V is inserted into the notch part C. The vertical material V inserted into each notch part for every three of the plate-state part S is held to a notch direction since a bolt and nut are fixed to one or both of a first positioning part and second positioning part of the notch part C. The grate-state bodies T in which the vertical material V is inserted into a depth of the notch part C and the grate-state bodies T in which the vertical material V is inserted into an intermediate position of the notch C are vertically held in a state in which the grate-state bodies are overlapped at end parts in a cross direction, for forming the grate-state body support structure.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a grid-like body support structure for fixing and supporting a grid-like body for cultivating plants along a vertical or inclined target wall-like surface such as an outer wall surface of a building or other structure.

  Japanese Patent Laid-Open No. 2001-204243 discloses, as a greening method for installing a net for a planting substrate along a surface of a greening target such as a wall of a building, a bracket having a certain length with respect to the surface of the greening target, etc. And a method of attaching a mesh to the tip of the protrusion is disclosed.

  However, the operation of appropriately attaching such a net-like object to the wall surface of a building is quite complicated, and improvement has been desired in view of the efficiency of the greening process for the wall surface of the building.

JP 2001-204243 A

  The present invention is a lattice that can easily and reliably fix and support a lattice-like body for growing plants along a vertical or inclined target wall-like surface such as an outer wall surface of a building or other structure. It is an object to provide a structure supporting structure.

  The grid-like body support structure of the present invention can be expressed as follows.

(1) a plurality of plate-like portions protruding from the target wall surface and extending in a predetermined direction along the target wall surface;
Having one or more grid-like bodies that are parallel or inclined with respect to the target wall surface;
The plurality of plate-like portions are provided at intervals in a direction orthogonal to the predetermined direction.
Each of the plate-like portions is formed with a plurality of cut portions at intervals from the edge portion (projection side) to the base portion (target wall surface side),
The lattice-shaped body is a state in which the rod-shaped portions intersecting the plate-shaped portions among the rod-shaped portions constituting the respective lattices are inserted into the cut portions of the plate-shaped portions and are prevented from being removed from the cut-out openings. And the lattice-shaped object support structure characterized by being hold | maintained at these plate-shaped parts in the front position of the said object wall-shaped surface.

  A plurality of plate-like portions that protrude from the target wall surface and extend in a predetermined direction along the target wall surface are provided at intervals in a direction orthogonal to the predetermined direction. Each plate-like portion is formed with a plurality of cut portions from the end edge portion toward the base portion at intervals.

  Of the rod-shaped portions constituting the lattice of the lattice-shaped body, the rod-shaped portions intersecting with the respective plate-shaped portions are inserted into the cut portions of the respective plate-shaped portions to prevent the object from being cut out. A grid-like support structure in which one or two or more grid-like bodies are held by the plurality of plate-like portions so as to be parallel or inclined with respect to the target wall-like face at the front position of the wall-like face is easily formed. Is done.

  (2) The grid-like support structure according to (1), which is for plant growth.

  The grid-like body held by the plate-like portion so as to be parallel or inclined with respect to the target wall-shaped surface at the front position of the target wall-shaped surface is a breeding of a plant that climbs on another object, such as a vine plant. It is suitable for.

  (3) The lattice according to (1) or (2), wherein the retaining is performed by fixing the retaining member to the plate-shaped portion on the cut-out side of the inserted rod-shaped portion in the notched portion. Structure support structure.

  (4) The lattice shape according to the above (3), which has a widened portion, as a positioning portion of the retaining body, having a widened portion capable of fitting a part of the retaining body having a dimension larger than the width of the notched portion at a required position of the notched portion. Body support structure.

  (5) The above-described (1), wherein different lattice-like bodies are held by the plate-like portions at a plurality of positions having horizontal intervals in the direction orthogonal to the target wall-shaped surface in front of the target wall-shaped surface. The grid-like support structure according to any one of (4) to (4).

  (6) One or two or more grid-like bodies supported at any position among the positions having a horizontal interval in the direction orthogonal to the target wall surface, and one or two or more supported at other positions The grid-like body support structure according to any one of the above (1) to (4), wherein the grid-like bodies are arranged so as to partially overlap each other in the vertical and horizontal directions or in other directions.

  (7) Any one of the above (1) to (5), wherein two or more grid-like bodies arranged vertically or horizontally or in other directions are supported so as to partially overlap each other or not overlap each other. 2. A grid-like support structure according to 1.

  (8) The grid-like body support structure according to any one of (1) to (7), wherein the plate-like portion is horizontal.

  (9) The grid-shaped body support according to any one of (1) to (8), wherein the grid of the grid-shaped body is vertically and horizontally orthogonal, and the horizontal bar-shaped portions constituting each grid are horizontal. Construction.

  According to the present invention, among the rod-shaped portions constituting the lattice of the lattice-shaped body, the rod-shaped portions intersecting with the respective plate-shaped portions are inserted into the cut portions of the respective plate-shaped portions, and are prevented from being removed from the cut-out openings. Accordingly, one or two or more grid-like bodies held by the plurality of plate-like portions so as to be parallel or inclined to the target wall-like face at a position in front of the target wall-like face. A support structure is easily formed.

  In the grid-like body support structure of the present invention, the grid-like body held by the plate-like portion so as to be parallel or inclined with respect to the target wall-like surface at the front position of the target wall-like surface is particularly like a vine plant. It is suitable for growing plants that climb on other objects.

It is a perspective view in the state where a lattice-like object was held at a plate-like part. It is a principal part enlarged view of FIG. It is a principal part enlarged view of FIG. It is a perspective view of a lattice-shaped body support structure and a planter. It is a principal part enlarged view of FIG.

  [1] An embodiment of the present invention will be described with reference to the drawings.

  The drawings all relate to examples of embodiments of the grid-like body support structure of the present invention.

  (1) Target wall surface

  The target wall surface W is a vertical outer wall surface of a building.

  (2) Lattice

  Several grid | lattice-like bodies T are the same wire mesh of the square mesh which all consist of 4 vertical members V and 20 horizontal members.

  With the lattice-like body T, a plant that climbs on another object such as a vine plant can be suitably grown.

  (3) Plate part

  Three comparatively long supporting steel materials L having an L-shaped cross section are fixed to the target wall surface W on each side so that the longitudinal direction is horizontally spaced at equal intervals. A flat plate-like plate-like portion S is projected forward from the lower end edge portion in a horizontal manner (perpendicular to the target wall-like surface W).

  Each plate-like portion S extends linearly in the horizontal direction along the target wall-like surface W, and is parallel to each other.

  The interval between the plate-like portions S is a length corresponding to the size of the lattice of the lattice-like body T to be held, that is, the length of the ninth mesh.

  Each plate-like portion S is formed with a plurality of cut portions C having a predetermined length from the end edge portion (projection side) to the vicinity of the base portion (target wall surface W side) at intervals. The interval between the cut portions C is an equal interval corresponding to the interval between the vertical members V constituting the lattice of the lattice-like body T to be held.

  Of every two cut-in portions C provided in each plate-like portion S, each of the two cut-in portions C has the shaft portion of the bolt B in the vertical direction on the back side of the cut and in the vicinity of the cut-out port. The 1st positioning part C1 and the 2nd positioning part C2 which can be inserted in are formed. The first positioning portion C1 and the second positioning portion C2 have a bow-shaped widened portion formed on both sides of the cut portion C, and a shaft portion (shaft portion of the bolt B) having a diameter larger than the width of the cut portion C. It is formed so that it can be inserted.

  (4) Support for grid

  (4-1) Each lattice-shaped body T has the first, tenth, and nineteenth cross members H on the top surfaces of the first, second, and third plate-like portions S from the top, respectively. Of the vertical member V that intersects the plate-like part S, the lower part of each transverse member H is inserted into the notch C of each plate-like part S so as to be supported.

  Thus, each lattice-like body T is supported in the width direction (first direction) of the cut portion C and supported upward on the upper surface of the plate-like portion S.

  The vertical member V inserted into every second cut portion C in the plate-like portion S is a bolt B in which a shaft portion is inserted downward with respect to one or both of the first positioning portion C1 and the second positioning portion C2. Is held by the nut N screwed on the lower side of the plate-like portion S, so that it is held in the cutting direction.

  (4-2) One group of the lattice bodies T among the several lattice bodies T is supported by the plate-like portion S in a state in which the vertical member V is inserted to the back of the cut portion C. In the other group of lattice-like bodies T, the vertical members V are inserted at intermediate positions of the notches C (positions between the first positioning portions C1 and the second positioning portions C2 in every two notches C). In this state, it is supported by the plate-like portion S.

  One group of lattice bodies T and the other group of lattice bodies T are alternately arranged in the horizontal direction along the target wall surface W, and overlap in the front-rear direction only at the ends in the horizontal direction.

  The vertical member V at the left end or the right end of the lattice member T of one group is inserted into the same cut portion C as the vertical member V of the right end or the left end of the lattice member T of the other group. The vertical member V at the right end of the grid-like body T is inserted to the back of the notch C, the bolt B and the nut N are fixed to the first positioning part C1, and the other end is located on the notch opening side of the notch C. The vertical member V at the left end of the lattice-like body T of the group is inserted, and the bolt B and the nut N are fixed to the second positioning portion C2. The same applies to the vertical member V on the opposite side.

  In this way, at each of the rear position and the front position having a horizontal interval with each other in the direction orthogonal to the target wall-shaped surface in front of the target wall-shaped surface W, the lattice-shaped body T is only in the front-rear direction at the end portion. In a state of overlapping, the lattice-like body support structure held by the plate-like portion S is formed in parallel to the target wall-like surface W, that is, perpendicularly.

  (5) Plant cultivation

  By arranging a planter P as a plant breeding body in the lower part of the grid-like body T in the grid-like support structure, and cultivating a plant that climbs to other things like a vine plant in the soil in the plant breeding body, The plant can grow suitably by climbing up the lattice-like body T extending upward.

  In the front of the target wall-shaped surface W, the separate lattice-like bodies T are held by the plate-like portions S at a plurality of positions having horizontal intervals in the direction orthogonal to the target wall-shaped surface, whereby the target wall Since there is a horizontal interval between the plane W and the nearest grid T and between the separate grids T, each plant climbing on another like a vine plant is In addition to climbing and growing on the grids T held in position, it is also possible to grow over the grids T that are spaced apart from each other in the horizontal direction. In addition, the light shielding property by the growing plant can be improved, and the depth of the appearance can also be generated.

  [2] Embodiments of the present invention will be further described, including forms other than those described above.

  The lattice-like body support structure of the present invention has a plurality of plate-like portions protruding from a target wall-like surface and extending in a predetermined direction along the target wall-like surface, and a parallel or inclined shape with respect to the target wall-like surface 1 Or it has two or more lattice-like bodies.

  (1) Target wall surface

  Examples of target wall surfaces include the outer wall surfaces of buildings and other structures or other vertical surfaces or inclined surfaces (for example, inclined surfaces of 25 degrees or more, or 30 degrees or more, 45 degrees or more, 60 degrees or more, Or an inclined surface of 70 degrees or more).

  (2) Lattice

  As the lattice-like body, for example, a lattice-like or net-like structure maintaining property made of metal, synthetic resin, or other materials can be used. The rod-shaped portions constituting the lattice are generally straight, but are not necessarily limited thereto. Moreover, the rod-shaped part which comprises a grating | lattice is not restricted to solid shape, A hollow shape (pipe shape) and groove shape may be sufficient.

  Specific examples of the lattice-like body include, but are not limited to, a wire mesh, a wire net, and a metal lath.

  The lattice in the lattice-shaped body is desirably a lattice in the form of vertical and horizontal orthogonality, but is not necessarily limited thereto. More preferably, the lattice-shaped body is a lattice-shaped body in which the contour of the lattice-shaped body is a square and the lattice in the lattice-shaped body is a lattice of vertical and horizontal orthogonal shapes parallel to the vertical and horizontal sides of the contour. Furthermore, it is preferable to use such a lattice-like body so that one of the vertical and horizontal directions in the vertical and horizontal orthogonal lattice is in the horizontal direction.

  (3) Plate part

  The plate-like portion protrudes from the target wall surface and extends in a predetermined direction along the target wall surface. The predetermined direction along the target wall surface is usually a predetermined linear direction, but is not necessarily limited to a straight line. As the linear direction, a horizontal direction is generally preferable, but other directions are also possible.

  The plate-like portion can be, for example, one that protrudes perpendicular to the target wall-like surface or one that protrudes in the horizontal direction. More specifically, for example, when the target wall surface is a vertical surface, the plate-like portion extends in the horizontal direction along the target wall surface and projects in the horizontal direction (that is, vertically). be able to. However, the plate-like portion is not limited to these, and for example, the plate-like portion may protrude in an upwardly inclined shape with respect to the target wall-shaped surface.

  The plate-like portion is generally a flat plate shape, but is not necessarily limited thereto.

  As a specific example of the plate-like part, by fixing one side of a relatively long steel material having an L-shaped cross section to the target wall-like surface, the other side constitutes a plate-like part protruding from the target wall-like surface. Can be mentioned. As another example of the plate-like portion, a material other than the L-shaped cross section that constitutes a plate-like portion in which a part is fixed to the target wall-shaped surface and the other portion protrudes from the target wall-shaped surface can be mentioned. However, it is not limited to these.

  The plurality of plate-like portions are provided at intervals in a direction orthogonal to the predetermined direction. The interval can be set according to the size of the lattice of the lattice-like object to be held. Although it is common that it is equal intervals, it is not restricted to this. In addition, the plurality of plate-like portions are generally parallel to each other, but are not limited thereto.

  Each plate-like portion is formed with a plurality of cut portions at intervals from the edge portion (projection side) to the base portion (target wall surface side). The interval between the notches is determined according to the size of the lattice of the lattice-like object to be held. In general, they are equally spaced, but are not necessarily limited thereto.

  About the length of the cut portion, for example, it can be constant, or the position of the back end portion of the cut portion can be a constant distance from the target wall surface, but is not limited thereto Absent.

  (4) Support for grid

  (4-1) The grid-like body has a rod-like portion that intersects each plate-like portion among the rod-like portions constituting each lattice. In the state made, it is held by the plurality of plate-like portions at the front position of the target wall-like surface.

  (4-2) In a lattice-like body held by a plurality of plate-like portions provided at intervals in a direction orthogonal to the predetermined direction, a large number of lattices are arranged in a direction orthogonal to the predetermined direction. In this case, it is not necessary to insert the bar-shaped portion in all of the predetermined series of lattices arranged in a direction orthogonal to the predetermined direction (for example, the vertical direction) into the cut portion of any plate-shaped portion.

  For example, a bar-shaped portion in each lattice of one or two or more lattices in a series of lattices arranged in a direction orthogonal to the predetermined direction may be inserted into a cut portion of any plate-shaped portion. .

  (4-3) Stopper

  The lattice-like body is inserted into the cut portion of each plate-like portion so that the rod-like portion that intersects each plate-like portion among the rod-like portions constituting each lattice is blocked to the cut-out port, Support of the lattice body in the width direction of the cut portion (support in the first direction), and support of the lattice body in the cut direction of the cut portion (the direction of the cut opening and the depth of cut) Support) is realized.

  In general, the insertion of the bar-shaped portion that intersects each plate-shaped portion among the rod-shaped portions constituting each grid of the grid-shaped body into the cut portion of each plate-shaped portion can be performed collectively.

  The rod-shaped portion inserted into the cut portion of each plate-like portion is prevented from being removed from the cut-out port in a state where the movement of the rod-like portion toward the back side and the cut-out port side is prevented (fixed state). However, it is not limited to this.

  Moreover, the prevention or fixing to the cut-out opening for the rod-like portion inserted in the cut portion of each plate-like portion may be performed at least to the limit necessary for supporting the lattice-like body by each plate-like member, It is not necessary to perform all of the rod-shaped portions inserted into the cut portions of the plate-shaped portion.

  The rod-shaped portion inserted into the cut-out portion of the plate-like portion can be secured or fixed to the cut-out port by any means, for example, on the cut-out side of the inserted rod-shaped portion in the cut-out portion In the position where the rod-like part can move in the cutting direction or the position where the rod-like part cannot move, the plate-like part may be a retaining member (which closes the cut-out side from the position of the rod-like part in the cutting part). ). For example, the bolt can be secured or fixed by fixing the bolt with a nut (or a push nut).

  The bolt can be fixed by, for example, providing a positioning portion on the plate-like portion where the bolt shaft portion or the like is positioned.

  More specifically, for example, at a required position of the cut portion, a size larger than the width of the cut portion (for example, 1.5 times, 2 times, 2.5 times or 3 times or more the width of the cut portion) ) Can be used as a positioning part (for example, by forming a widened part that can fit a part of the retaining body (for example, a shaft part of a bolt) on both sides or one side of a required position of the cut part, for example) In the case where a part of the retaining member has a circular cross section such as a shaft portion of a bolt, the widened portion can be formed in a bow shape, but is not limited to this, and can also be formed in a square shape or the like). Thereby, it is also prevented that a retaining member such as a bolt falls off to the cut opening side of the cut portion.

  Further, two or more grid-like bodies arranged vertically or horizontally or in other directions may be supported so as to partially overlap each other or not overlap each other. In that case, among the rod-shaped portions constituting each lattice in each lattice-shaped body, the rod-shaped portion intersecting with each plate-shaped portion is inserted into the same cut portion of the plate-shaped portion, and is prevented from being removed from the cut-out opening. Therefore, it is also possible to support those lattice-like bodies.

  (4-4) Third direction support

  As described above, the grid-like body supported in the width direction (first direction) of the cut portion and the cut direction (second direction) of the cut portion is orthogonal to both the first direction and the second direction. The separation from the plate-like portion in the three directions can be prevented by the first direction component of the rod-like portions constituting each lattice.

  When the third direction is the vertical direction or has a vertical component, the movement of the lattice-shaped body in the third direction can be suppressed by gravity. For example, when the plate-like portion has a horizontal component, the portion having the horizontal component of the lattice-like body can be supported upward by the portion having the horizontal component of the plate-like portion. Typically, when each plate-like portion is horizontal and the lattice of the lattice-like body is vertically and horizontally orthogonal, each plate-like portion is in a state in which the vertical bar-like portions of each lattice are vertical. In the third direction, the lattice-shaped body is inserted vertically into each of the slits in the section and held vertically, and the horizontal bar-shaped section of each grid is supported on the plate-shaped section in a horizontal state. The movement of the lattice in the vertical direction can be suppressed.

  To fix the grid in the third direction, further fixing means can be applied. For example, the retaining member can be provided with a fixing portion that can fix the lattice-like body in the third direction with respect to the plate-like portion, along with fixing the lattice-like body in the cutting direction.

  (4-5) Posture of the grid and positional relationship with the target wall surface

  The lattice-like body may be parallel or inclined with respect to the target wall-like surface (for example, a vertical surface).

  In order to make the lattice-like body parallel to the target wall-like surface, the lattice-like body has a rod-like portion that intersects each plate-like portion among the rod-like portions constituting each lattice. What is necessary is just to make constant the distance with the target wall-shaped surface of the position inserted and fixed in a notch part, and what is necessary is just to change the distance according to the angle of inclination in order to make it incline.

  (4-6) Supporting multiple layers of lattices

  Different grid-like bodies may be held by the plate-like portions at a plurality of positions having horizontal intervals in the direction orthogonal to the target wall-shaped surface in front of the target wall-shaped surface.

  In the front of the target wall-shaped surface, at each of a plurality of positions having horizontal intervals in the direction orthogonal to the target wall-shaped surface, different lattice-shaped bodies are held by the plate-shaped portions, thereby the target wall-shaped surface and Since it has a horizontal interval in the direction perpendicular to the target wall surface between the nearest grids and between the separate grids, a plant climbing on another like a vine In addition to growing on the grids held at each position, they grow across the grids that are spaced apart from each other in the direction perpendicular to the target wall surface in the direction orthogonal to the target wall surface. The plants can be more reliably held by the grids, and the light-shielding property by the growing plants can be improved, and the depth of the appearance can also be generated.

  In this case, at each position having a horizontal interval between each other in the direction orthogonal to the target wall surface, two or more grid-like bodies arranged vertically or horizontally or in other directions may overlap each other or overlap each other. It can also be supported so that it does not become.

  Moreover, 1 or 2 or more grid | lattice bodies supported in any position among the positions which have a horizontal direction space | interval mutually in the direction orthogonal to an object wall surface, and 1 or 2 or more supported in other positions The lattice-like bodies may be arranged so as to partially overlap each other in the vertical and horizontal directions or in other directions.

  In order to support the lattice-like body at each position having a horizontal interval in the direction orthogonal to the target wall-like surface, for example, the rod-like portion that intersects the plate-like portion among the rod-like portions constituting the lattice of the lattice-like body Is inserted up to the far end of the notch, and a spacer is provided on the notch opening side of the rod-like part (for example, the rod-like part is secured or fixed with a retaining member such as a bolt), and the same in the same notch Insert the rod-shaped portion that intersects the plate-shaped portion among the rod-shaped portions constituting the lattice of another lattice-shaped body on the cut-out side of the spacer, and further insert the rod-shaped portion on the cut-out side with a retaining member such as a bolt. It can be secured or fixed. Furthermore, another lattice-like body can be similarly held on the cut opening side.

  In addition, for example, each plate-like portion is provided with a plurality of types of cut portions having different cut lengths, and the rod-like portion intersecting the plate-like portion among the rod-like portions constituting the lattice is cut for each type of the cut portion. The distance from the target wall-like surface to the grid-like body when inserted to the far end of the part may be different. The insertion depth of the plate-like part inserted into the notch part can also be adjusted with a spacer or the like.

  (5) Plant cultivation

  By using the grid-like body in the grid-like support structure, it is possible to preferably grow a plant that climbs on another object, such as a vine plant.

  For example, by arranging a plant breeding body such as a planter in the lower part of the grid-like body in the grid-like support structure, and cultivating a plant that climbs to other things like vines in the soil in the plant breeding body, The plant can suitably grow by climbing a grid-like body extending upward.

B Bolt C Cut portion C1 First positioning portion C2 Second positioning portion H Cross member L Supporting steel N Nut P Planter S Plate portion T Grid-like body V Vertical member W Target wall surface

Claims (9)

A plurality of plate-like portions protruding from the target wall-shaped surface and extending in a predetermined direction along the target wall-shaped surface;
Having one or more grid-like bodies that are parallel or inclined with respect to the target wall surface;
The plurality of plate-like portions are provided at intervals in a direction orthogonal to the predetermined direction.
Each of the plate-like portions is formed with a plurality of cut portions at intervals from the edge portion toward the base portion,
The lattice-shaped body is a state in which the rod-shaped portions intersecting the plate-shaped portions among the rod-shaped portions constituting the respective lattices are inserted into the cut portions of the plate-shaped portions and are prevented from being removed from the cut-out openings. And the lattice-shaped object support structure characterized by being hold | maintained at these plate-shaped parts in the front position of the said object wall-shaped surface.   The grid-like support structure according to claim 1, which is used for plant growth.   The lattice-shaped body support structure according to claim 1 or 2, wherein the retaining is performed by fixing the retaining body to the plate-shaped portion on the cut-out side of the inserted rod-shaped portion in the notched portion.   The grid-like body support structure according to claim 3, wherein a widening portion capable of fitting a part of a retaining member having a dimension larger than the width of the notching portion is provided as a positioning portion of the retaining member at a required position of the notching portion.   Any one of the grid-like bodies held by the plate-like portion at a plurality of positions having horizontal intervals in the direction orthogonal to the target wall-shaped surface in front of the target wall-shaped surface. A grid-like support structure according to claim 1.   One or two or more grids supported at any position among the positions having a horizontal interval in the direction orthogonal to the target wall surface, and one or two or more grids supported at other positions The grid-like body support structure according to any one of claims 1 to 4, wherein the bodies are arranged so as to partially overlap each other vertically or horizontally, or in other directions.   The grid-like body according to any one of claims 1 to 5, wherein two or more grid-like bodies arranged vertically or horizontally or in other directions are supported so as to partially overlap each other or not overlap each other. Support structure.   The grid-like body support structure according to any one of claims 1 to 7, wherein the plate-like portion is horizontal.   The grid-like body support structure according to any one of claims 1 to 8, wherein a grid of the grid-like body is vertically and horizontally orthogonal, and horizontal bar-like portions constituting each grid are horizontal.

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