JPH08184096A - Connecting structure of grating - Google Patents

Abstract

PURPOSE: To connect gratings fitted at the upper end of a drainage ditch mutually without requiring skill. CONSTITUTION: A horizontal plate section 9, a member 7 for connection having upwards engaging pieces 10 at both ends in the cross direction of the plate section 9, a horizontal plate section 11 and a cover body 8 having downwards engaging pieces 12 at both ends in the cross direction of the plate section 11 are provided. Members 4, 4 placed at the end sections of adjacent gratings 1, 1 mounted at the upper end of a drainage ditch 2 are placed on the horizontal plate section 9 of the member 7 for connection, and covered with the cover body 8. The cover body 8 and the member 7 for connection are fixed by a bolt 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grating connecting structure for connecting gratings provided as a lid for covering an upper end of a drain groove inside or outside a building.

[0002]

2. Description of the Related Art Conventionally, a grating which is laid as a cover for covering the upper end of a drain groove depends on the length of the drain groove, but usually a plurality of grooves are used for one drain groove. At present, in order to prevent floating of the grating from above and prevent theft, etc., adjacent gratings are connected by bolts and nuts.

However, in the work of connecting adjacent gratings with, for example, bolts and nuts, the main bars, which are the constituent materials of the gratings located at the ends, are brought close to each other, the bolts are inserted into both main bars, and the nuts are attached to the bolts. Although it is carried out by screwing, it is difficult to insert the bolt into the main bar and screw the nut into the bolt in a narrow space inside the main bar, and there is a problem that skill is required. In addition, the bolts and nuts must be attached and detached every time maintenance such as cleaning of the drainage groove is performed, which causes a problem that the maintenance is very troublesome.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and it is an object of the present invention to easily connect gratings provided at the upper ends of drainage grooves without requiring skill. It is a thing.

[0005]

In order to solve this problem, the present invention has a plate portion whose upper surface is horizontal at least at both ends in the width direction facing the width direction of the grating, and has an upward engagement at both ends in the width direction. A lower connecting member having a piece, and an upper connecting member having a plate portion having a horizontal lower surface at least at both ends in the width direction facing the width direction of the grating and having downward engaging pieces at both ends in the width direction. Comprising, the main bar located at the end of adjacent grating provided on the drain groove upper end is sandwiched from above and below by the upper connecting member and the lower connecting member,
The gist is that the upper connecting member and the lower connecting member are fixed by bolts.

As described above, the upper connecting member and the lower connecting member sandwich the end portions of adjacent gratings provided at the upper end of the drainage groove from above and below without requiring skill to connect the gratings. It can be done easily.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. First, the first embodiment shown in FIGS. 1 to 3 will be described. 1 indicates that both sides along the length direction are on a receiving portion 3 formed near the upper end of the inner surface along the length direction of the drainage groove 2. It is a grating that can be placed and is made of metal such as stainless steel or iron. More specifically, in the grating 1, a large number of main bars 4 arranged in parallel at equal intervals are connected by three cross bars 5 which are orthogonal to the main bar 4 and parallel to each other. The frame member 6 is attached to both sides along the line.

A plurality of the gratings 1 are used for one drain 2, although depending on the length of the drain 2, the grating 1 is made of metal or the like between adjacent gratings 1. The connection member 7 on the side is connected with a lid body (upper connection member) 8 which is also made of metal or the like. The connecting member 7 and the lid 8 are formed in a long shape along the width direction of the grating 1.

More specifically, the connecting member 7 is located between the main bars 4 and 4 located at the ends of the adjacent gratings 1, 1 and has a horizontal plate portion 9 at the lower end and the width direction of the grating 1. The engaging pieces 10 are provided at both ends of the facing plate portion 9 in the width direction, and the engaging pieces are provided in a portion of the grating 1 which is mounted on the receiving portion 3 of the drain groove 2.
10 does not exist, and a step is formed so that both end portions of the horizontal plate portion 9 are located above the other portions by the plate thickness of this plate portion 9.

The lid 8 sandwiches the main bars 4 and 4 located at the ends of the adjacent gratings 1 and 1 placed on the plate 9 of the connecting member 7 with the plate 9. The connecting member 7 has a shape in which the connecting member 7 is turned upside down, and has a horizontal plate portion 11 at an upper end and a downward facing member provided at both ends in the width direction of the plate portion 11 facing the width direction of the grating 1. Piece 12
It has and.

Then, the main bars 4 and 4 located at the ends of the adjacent gratings 1 and 1 are placed on the plate portion 9 of the connecting member 7 and covered with the lid 8 so that the space between the main bars 4 and 4 is increased. The lid 8 is provided at the center of the connecting member 7 and the lid 8 in the width direction.
Is fixed to the horizontal plate portion 9 with bolts 13 at a plurality of positions in the lengthwise direction of the connecting member 7 and the lid body 8, and main bars 4, 4
Is configured to hold down. As a result, the main bars 4, 4 located at the ends of the adjacent gratings 1, 1 have their lower ends engaged with the engaging pieces 10 of the connecting member 7 and their upper ends engaged with the engaging pieces 12 of the lid 8. The gratings 1 and 1 adjacent to each other are sandwiched between the connecting member 7 and the lid 8 and are connected to each other.

A recess 8b is formed in the lid 8 at the position of the bolt insertion hole 8a at the center in the width direction so that the head of the bolt 13 is fitted from above, and when the bolt 13 is tightened, the head of the bolt 13 is tightened. The part is configured to fit into the recess 8b and not to project from the upper surface of the lid 8. The head of the bolt 13 has a circular outer shape, and a hexagonal recess is formed on the upper surface of the head. Further, the horizontal plate portion 9 of the connecting member 7 is formed with a female screw hole 9a which is screwed into the bolt 13.

Next, the second embodiment shown in FIGS. 4 and 5 will be described. In the second embodiment, an appropriate space is provided in the width direction of the connecting member 7 at the center of the connecting member 7 in the width direction. The plate parts 14 and 14 parallel to each other are erected integrally, and the upper ends of the plate parts 14 and 14 are connected by a horizontally provided plate part 15 so that the plate parts 14 and 14 are sandwiched. The main bars 4 and 4 located at the ends of the adjacent gratings 1 and 1 are placed on the horizontal plate portion 9, and the lid body 8 is covered from above the main bars 4 and 4, and the lid body 8 is attached to the horizontal plate portion of the connecting member 7. It is fixed to 9 with bolt 13. In addition, in the second embodiment, the plate portion 15
A bolt insertion hole 15a is formed at the center in the width direction.

Next, the third embodiment shown in FIGS. 6 and 7 will be described. In the second embodiment, the plate portions 14, 14 and the plate portions are provided on the horizontal plate portion 9 of the connecting member 7. Although 15 is integrally provided, in the third embodiment, a square pipe 16 is provided by welding or the like at the center of the horizontal plate portion 9 in the width direction.

Next, the fourth embodiment shown in FIGS. 8 and 9 will be described. In the fourth embodiment, the horizontal portion connecting the upper ends of the plate portions 14 and 14 in the second embodiment is connected. The horizontal plate portion 9 located below the flat plate portion 15 and connecting the lower ends of the plate portions 14 and 14 is eliminated, and a female screw hole 15b for screwing a bolt is formed in the plate portion 15.

Next, a fifth embodiment shown in FIGS. 10 and 11 will be described. In the fifth embodiment, the horizontal portion connecting the upper ends of the plate portions 14 and 14 in the fourth embodiment is connected. The plate portion 15 is eliminated, and the upper ends of the plate portions 14 and 14 are directly connected to each other to form a mountain shape.

Further, the sixth embodiment shown in FIGS. 12 and 13 will be described. The sixth embodiment is a modification of the fifth embodiment, and the plate portions 14 and 14 are Corrugated part so that both plate parts 14 and 14 are elastically connected between the upper ends
17 is formed so that the expansion and contraction of the grating 1 due to changes in temperature can be dealt with.

By the way, in each of the above embodiments,
Although the connecting member 7 and the lid 8 are formed in a long shape along the width direction of the grating 1, the lower connecting member 7 as in the seventh embodiment shown in FIGS. 14 to 16. It is also possible to form the lid (upper connection member) 8 to be short and to connect the adjacent gratings 1 and 1. In the illustrated embodiment, the main bars 4 and 4 located at the ends of the adjacent gratings 1 and 1 are brought close to each other, and in this state, the main bars 4 adjacent to the main bar 4 located at the end of one grating 1 are adjacent to each other. 4 and the main bars 4 and 4 located at the ends of the adjacent gratings 1 and 1 that are brought close to each other at a plurality of positions in the width direction of the grating 1, the lower connecting member 7 and the lid (for the upper connecting (Member) 8 sandwiched in the up-down direction and located at the end of one grating 1 and this main bar 4
The lower connecting member 7 and the lid (upper connecting member) 8 are fastened with bolts 13 between the adjacent main bars 4. Reference numerals 18 and 19 denote recesses inside the engaging pieces 10 at both ends in the width direction of the lower connecting member 7 facing the width direction of the grating 1 and a lid body (upper connecting member) 8 facing the width direction of the grating 1. In the recesses inside the engaging pieces 12 at both ends in the width direction, the upper surfaces of the recesses 18 and the lower surfaces of the recesses 19 are horizontal, and the main bars 4 are fitted into the recesses 18 and 19. The recesses 18 inside the engaging pieces 10 at both ends in the width direction of the lower connecting member 7 have a width in which the two main bars 4 overlapping each other fit. This is so that the main bar 4 fits into the recess 18 regardless of whether the lower connecting member 7 faces left or right.

In the seventh embodiment described above, the grating 1 is formed by the lower connecting member 7 and the lid (upper connecting member) 8 at a plurality of positions in the width direction of the grating 1.
Is sandwiched from above and below, and the connecting member 7 and the lid body 8 are tightened with bolts 13 to connect the adjacent gratings 1 and 1. However, when the width of the grating 1 is small, the grating 1 has one center in the width direction. The gratings 1 and 1 may be connected by the connecting member 7 and the lid 8.

Further, in the seventh embodiment described above, the lid body (upper connecting member) 8 projects from the upper end of the grating 1 when the gratings 1 and 1 are connected. As in the eighth embodiment shown in FIG. 7, a notch recess 20 is provided at the upper end of the two main bars 4 located at the end of the grating 1, and the notch recess 20 is provided.
It is also possible to fit the lid body (upper connection member) 8 into the 20 so that the lid body (upper connection member) 8 does not protrude from the upper end of the grating 1.

[0021]

As described above, according to the present invention, the lower side having the plate portions whose upper surfaces are horizontal at least at both ends in the width direction facing the width direction of the grating and having the upward engaging pieces at both ends in the width direction. And the connecting member of the upper side having a horizontal lower surface plate portion at least at both ends in the width direction facing the width direction of the grating, and having downwardly engaging pieces at both ends in the width direction. It is possible to easily connect the gratings by sandwiching the ends of the adjacent gratings provided from above and below. This work is easier and requires less skill than the conventional work of inserting the bolts into the main bar in a narrow space inside the main bar and screwing the nuts onto the bolts. Therefore, workability can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state before coupling gratings according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a connected state of the gratings.

FIG. 3 is an enlarged sectional view of the same.

FIG. 4 is a perspective view showing a state before coupling gratings according to the second embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view showing a connected state of the gratings.

FIG. 6 is a perspective view showing a state before coupling gratings according to a third embodiment of the present invention.

FIG. 7 is an enlarged cross-sectional view showing a connected state of the gratings.

FIG. 8 is a perspective view showing a state before coupling gratings according to a fourth embodiment of the present invention.

FIG. 9 is an enlarged cross-sectional view showing a connected state of the gratings.

FIG. 10 is a perspective view showing a state before coupling gratings according to a fifth embodiment of the present invention.

FIG. 11 is an enlarged cross-sectional view showing a connected state of the gratings.

FIG. 12 is a perspective view showing a state before coupling gratings according to a sixth embodiment of the present invention.

FIG. 13 is an enlarged cross-sectional view showing a connected state of the gratings.

FIG. 14 is a perspective view showing a state before coupling gratings according to a seventh embodiment of the present invention.

FIG. 15 is a perspective view showing a connected state of the gratings.

FIG. 16 is an enlarged sectional view of the same.

FIG. 17 is a perspective view showing a state before coupling gratings according to the eighth embodiment of the present invention.

FIG. 18 is an enlarged cross-sectional view showing a connected state of the gratings.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 grating 2 drain groove 3 receiving part 4 main bar 7 connecting member 8 lid 8a bolt insertion hole 9 plate part 9a female screw hole 10 engaging piece 11 plate part 12 engaging piece 13 bolts 14 and 15 plate part 16 square pipe 17 Corrugated part 18, 19 Recessed part

Claims (1)

[Claims] 1. A lower connecting member having plate portions with upper surfaces that are horizontal at least at both ends in the width direction facing the width direction of the grating, and upper engaging pieces at both ends in the width direction, and a width direction of the grating. End portions of adjacent gratings provided at the upper end of the drainage groove, each having a plate portion whose lower surface is horizontal at least at both ends in the width direction facing each other, and an upper connecting member having downward engaging pieces at both width directions. The main bar located at is sandwiched from above and below by the upper connecting member and the lower connecting member, and the upper connecting member and the lower connecting member are fixed by bolts. Grating connection structure.