JPH10331321A - Surface grid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surface grid such as grating in which a bar-like member and a holding member can be easily and efficiently connected together, the balance of flexibility and rigidity as a whole can be optionally set, and a curved plane-shaped grid can be easily constituted. SOLUTION: This surface grid has a holding member 2 to be bonded to bar-like members 1 in cross, and the holding member 2 has a curved part 25 formed by curving the part between the adjacent bar-like members 1. An optional balance between flexibility and rigidity is imparted to the whole grid by this curved part 25, and the space between one-side end parts of the bar-like members 1 is differed from the space between the other side parts by contracting or extending the curved part 25 so that a curved plane-shaped grid can be constituted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planar grid such as a grating, a grid floor member, a window grid, a fence, and a gate. More specifically, the present invention relates to a planar lattice having a simple structure and capable of easily assembling a curved planar shape.

[0002]

2. Description of the Related Art Conventionally, a plurality of bar-shaped members are connected and held at predetermined intervals by a holding member in gratings such as groove lids and square lids, grid-like entrance mats, window grids, fences, gates, and other planar grids. It has a structured structure. For example, the grating has a structure in which a rod-shaped member that supports a load, that is, a bearing bar, is connected to each other at a predetermined interval by a holding member, that is, a crossbar. However, the crossbar is an essentially rigid member. The entire grating has an essentially rigid structure with great rigidity.

[0003] Recently, the drainage grooves and the like are not limited to straight lines but may be curved or other shapes. In such a case, a special grating corresponding to the shape of the drainage grooves is used as described above. Must be manufactured. However, as described above, in the conventional grating, since the crossbar is a member having high rigidity, molding it into a predetermined curved shape requires many steps, and the manufacturing is inefficient.

[0004] Further, in the case of curved cre- ting, it is necessary that the interval between the ends of the rod-shaped members is wide at one end outside the curve and narrow at the other end inside the curve. For this reason, in the outer and inner crossbars, the distance between the joints with the bearing bar must be different,
Manufacturing was cumbersome. For this reason, special order products such as gratings having such a curved planar shape are extremely troublesome to manufacture, and the manufacturing cost is greatly increased.

[0005] In addition, since there is a considerable error in the shape of the actually constructed drainage groove or the like, the shape of the actually constructed drainage groove may not match the shape of the manufactured curved grating.

Further, the conventional grating has a large rigidity as a whole. However, the grating laying surface of the actually installed drainage ditch is not necessarily flat, and also has considerably large irregularities, etc. When the vehicle passes, there is a problem that noise is generated. The above-mentioned problems are not limited to gratings such as drain covers, and other window grids,
It is also a problem commonly encountered with planar grids such as fences and gates.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a simple structure, is easy to manufacture, can reduce the cost, and has a curved planar shape. A planar surface that can be easily manufactured, arbitrarily given some flexibility as a whole, deformed to some extent according to the shape of the laying or mounting part, and can be laid or mounted stably Provides a grid.

[0008]

According to a first aspect of the present invention, there is provided a planar grid comprising a plurality of rod-shaped members and a holding member for connecting these rod-shaped members to each other and holding them in a predetermined arrangement. The holding member is formed of a bendable material, and the holding member has a curved portion in which a portion between the adjacent rod members is curved.

Therefore, the structure is simple and
Since the curved portion of the holding member is easily curved, the planar lattice can provide a certain degree of flexibility as a whole.
Therefore, even if there is an error in the laying surface or mounting surface,
The entire lattice is deformed to some extent and completely adheres to or corresponds to the laying surface or the shape of the mounting portion according to the shape of the laying surface or the mounting portion, and can be laid or mounted stably.

Further, since the curved portion of the holding member is easily deformed, it is easy to increase or decrease the curvature of the curved portion. Therefore, by squashing this curved portion so as to be more curved, or by stretching it, the interval between the one end portion and the other end portion of the rod-shaped member can be made different, and a curved planar lattice can be easily formed. Can be manufactured.

According to a second aspect of the present invention, the holding member has a strip shape, and a width direction thereof is arranged along a longitudinal direction of the rod-shaped member. Therefore, the flexibility of the holding member is directional, and in a plane along the longitudinal direction of the rod-shaped member, that is, in a direction perpendicular to the plane of the planar lattice, the lattice has great flexibility,
It is less flexible and more rigid in other directions. Therefore, in the case of horizontal laying such as grating, it is deformed and adhered to the laying surface in accordance with the error and unevenness of the laying surface, and can be laid stably without rattling.

According to a third aspect of the present invention, the holding member has a strip shape, and a width direction thereof is arranged perpendicular to a longitudinal direction of the rod-shaped member.
Therefore, the holding member has high flexibility in a plane along the longitudinal direction of the rod-shaped member, but has low flexibility and high rigidity in other directions. Therefore, flexibility is small in the direction orthogonal to the plane direction of the planar lattice, and a certain degree of rigidity as the planar lattice can be provided.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In these embodiments, the planar grating of the present invention is applied to the grating used for the groove cover of the drainage ditch, but the present invention is not limited to such grating, and other planar It is generally applicable to lattices.

FIGS. 1 to 4 show a grating according to a first embodiment of the present invention. This grating is for light loads such as for pedestrians. In this grating, a bearing bar, that is, a plurality of rod-shaped members 1 are arranged in parallel with each other, and two crossbars, that is, holding members 2 are arranged at both ends of the rod-shaped members 1 at right angles. These rod-shaped members 1 are connected to each other at a predetermined interval to form a grating-like grating.

The above-mentioned bar-shaped member 1 is formed by bending a stainless steel plate into a substantially inverted U-shape to form a channel.
It has an upper surface portion 11 and a flat side surface portion 12, and is lightweight and has high rigidity. The upper surface portion 11 constitutes a tread surface, and non-slip holes 13 are formed in the upper surface portion 11 at predetermined intervals along the longitudinal direction. The anti-slip hole 13 is formed by punching out the upper surface portion 11, and is formed so that an edge portion 14 at the time of punching, that is, a hanging portion faces upward, and the edge portion 14 prevents slipping. Is configured.

The holding member 2 is made of a band-shaped flat plate made of a stainless steel plate. The holding member 2 is entirely formed as a side portion 22, and the side portion 22 is disposed so as to extend along the horizontal direction. ing.

Next, a connection structure between the rod-shaped member 1 and the holding member 2 will be described. Fitting slits 15 are formed in the side surfaces 12 at both ends of the rod-shaped member 1. The fitting slit portion 15 is formed substantially in the horizontal direction at the center of the side surface portion 12, and its lower portion is opened to the lower edge of the side surface portion 12.
2 is configured to fit into the fitting slit 15 from below.

At both ends of these fitting slits 15, locking projections 17 are provided respectively. In addition, fitting slit portions 23 are formed on both side edges of the side surface portion 22 of the holding member 2 so as to correspond to the fitting slit portions 15 of the rod-shaped member 1. Therefore,
The holding slit 2 of the holding member 2 and the fitting slit 17 of the rod-shaped member 1 are made to correspond to each other, and the holding member 2 is pressed against the rod-shaped member 1 from below, whereby the holding member 2 is pressed.
Is fitted in the fitting slit portion 15 of the rod-shaped member, and a part of the side surface portion 12 of the rod-shaped member 1 is fitted in the fitting slit portion 23 of the holding member 2. The rod-shaped member 1 and the holding member 2
Are fitted and held together.

In this case, the locking projection 17 is
The holding member 2 elastically engages with the inner end of the fitting slit 23 to prevent the holding member 2 from coming off. In this way, the rod-shaped member 1 and the holding member 2 are fitted together and integrally joined. The band-shaped holding member 2 has a curved portion 25 that is curved downward, for example, at a portion located between the adjacent rod-shaped members 1.

In this embodiment, since the curved portion 25 is formed in the holding member 2, it is easy to bend at this portion, and the grating of this embodiment is somewhat flexible in the vertical direction, that is, the direction perpendicular to the plane direction. There is flexibility. Therefore, even if there is some unevenness in the laying place such as the drainage groove, the entire grating is closely adhered to the shape of the laying surface, so that rattling does not occur.

Further, the adjacent side portion 12 of the rod-shaped member 1
Is pinched with pliers or the like, and the curved portion 25 of the holding member 2 is crushed so as to be more greatly curved.
The distance between the ends of the bar-shaped member 1 can be changed on the spot by extending the space. Therefore, if the interval between one ends of the rod-shaped member 1 is widened and the interval between the other ends is narrowed, grating having a curved planar shape can be formed as shown in FIG.

FIG. 5 shows a second embodiment of the present invention. This is the same as the first embodiment described above, except that the strip-shaped holding member 2 is arranged so that the width direction thereof is along the vertical plane. And this holding member 2
Corresponding to the arrangement, a fitting slit portion 15a is formed in the side surface portion 12 of the rod-shaped member 1 along the up-down direction, and the lower end thereof is opened to the lower edge of the side surface portion 12.
A pair of locking projections 17 are formed at lower end portions of 5a, respectively. The configuration other than the above point is the same as that of the first embodiment.
The same reference numerals are given to portions corresponding to those of the first embodiment in FIG. 5, and the description thereof will be omitted.

In this embodiment, the operation and effect are the same as those of the first embodiment, but the strip-shaped holding member 2 is arranged so that the width direction thereof is along the vertical plane. Therefore, when a load in the horizontal direction acts on the upper surface of the rod-shaped member 1 and a load such that the rod-shaped member 1 falls down is applied, a load acts to bend the holding member 2 in its width direction. . However, this strip-shaped holding member 2
Since it exerts a large rigidity against a load in such a direction, it is structurally strong, and the grating of the second embodiment is generally planar in comparison with the grating of the first embodiment. The rigidity in the plane direction as a lattice is increased.

The present invention is not limited to the above embodiment, and various changes can be made. For example, the joining structure between the rod-shaped member and the holding member is not necessarily limited to the joining by crimping as in the above embodiment, but may be any joining structure such as welding.

The holding member is not necessarily limited to a strip-shaped member, but may be a bar-shaped member or any other member having the flexibility and rigidity required for the entire planar lattice. In consideration of balance, the cross-sectional shape of the holding member, the direction of bending of the bending portion, the curvature thereof, and the like can be arbitrarily set.
Further, the shape and structure of the rod-shaped member are not necessarily limited to those of the above-described embodiment. Further, the present invention is not limited to gratings, and it is needless to say that the present invention can be generally applied to planar lattices such as window lattices, lattice floor members, fences and gates.

[0026]

As described above, according to the present invention, since the structure is simple and the curved portion of the holding member is easy to bend, the planar lattice is given some flexibility as a whole. Can be. Therefore, even if there is an error in the laying surface or the mounting surface, the entire lattice is deformed to some extent and follows the shape of the laying surface or the mounting part to completely adhere to or respond to this, enabling stable laying or mounting It is.

Further, since the curved portion of the holding member is easily deformed, it is easy to increase or decrease the curvature of the curved portion. Therefore, by squashing this curved portion so as to be more curved, or by stretching it, the interval between the one end portion and the other end portion of the rod-shaped member can be made different, and a curved planar lattice can be easily formed. The effect is great, for example, it can be manufactured.

[Brief description of the drawings]

FIG. 1 is a plan view of the entire grating according to a first embodiment.

FIG. 2 is a sectional view taken along line 2-2 in FIG. 1;

FIG. 3 is an exploded perspective view of a joint portion between the rod-shaped member and the holding member according to the first embodiment.

FIG. 4 is a plan view when the grating of the first embodiment is curved.

FIG. 5 is an exploded perspective view of a joint portion between a rod-shaped member and a holding member according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rod-shaped member 2 Holding member 12 Side surface part 15, 15a Fitting slit part 17 Locking protrusion 22 Side surface part 23 Fitting slit part 25 Curved part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI E06B 11/02 E06B 11/02 R

Claims (3)

[Claims] 1. A planar lattice comprising a plurality of rod-shaped members and a holding member for connecting these rod-shaped members to each other and holding them in a predetermined arrangement, wherein said holding member is made of a bendable material. A planar grid, wherein the holding member is formed with a curved portion in which a portion between the adjacent rod-shaped members is curved. 2. The planar lattice according to claim 1, wherein said holding member has a strip shape, and a width direction thereof is arranged along a longitudinal direction of said rod-shaped member. 3. The planar grid according to claim 1, wherein said holding member has a strip shape, and a width direction thereof is arranged perpendicular to a longitudinal direction of said rod-shaped member.