JPS583913Y2 - Grating fixing structure - Google Patents

Description

[Detailed explanation of the invention] This invention uses a grating supported on a receiving frame of a groove.
This is an improved structure that secures it firmly.

If a grating is simply placed on a receiving frame in a groove, it will bounce when a vehicle passes by, producing a metal impact sound.

They are also more susceptible to theft. For this reason, conventionally, as shown in FIG. 5, bolts 14 are fixed and erected on the receiving frame 2, and plates 16 with holes 15 are welded to the lower surfaces of both left and right ends of the grating 4, and the bolts 14 are attached to the plates 16. Hole 1
The grating 4 is fixed on the receiving frame 2 by inserting the nut 17 into the grating 4 from above and screwing the nut 17 through the grating 4 from above.

However, in this method, it is necessary to align and insert a plurality of bolts 14 into each hole 15 of the plate 16 at the same time, which is rather difficult because the grating 4 is a heavy body.

This invention focuses on this fact and attempts to make it possible to easily and reliably fix the grating to the receiving frame after placing the grating on the receiving frame without adjusting the position each time.

The details will be explained below based on the drawings.

In FIGS. 1 and 2, 1 is a drainage ditch formed by pouring concrete.

At the left and right upper portions of this groove 1, there are receiving frames 2 made of angle material,
2 is fixed via an anchor 3, and a grating 4 that covers the upper surface of the opening of the groove 1 is placed on this receiving frame 2°2.

The grating 4 has left and right end plates 5°5,
It is constructed in a lattice shape with bearing pars 6 in the horizontal direction and cross pars 7 in the vertical direction.

A through hole 9 is provided on at least one side of the end plates 5, 5.
Transparently placed at appropriate intervals.

Two through holes 9 are provided at least at both front and rear ends of the end plate 5.
Set up individually.

Preferably, the front and rear central portions of the end plate 5 are also provided transparently.

This through hole 9 is located centrally between adjacent bearing pars 6.6 and above the end plate 5.

Then, a nut 10 is welded to the inner surface of the end plate 5 so as to extend through each through hole 9, and a pointed pin 11 is screwed onto the nut 10 from the inside.

In such a case, as shown in FIG. 2, after placing the grating 4 on the receiving frames 2, 2, a tool such as a wrench is inserted into the gratings of the grating 4 from above and the bolts 11 are tightened.

As a result, the tip of the bolt 11 passes through the through hole 9 of the end plate 5, comes into contact with the vertical side 2a of the receiving frame 2, and bites into this.

As a result, as shown in Fig. 3, the grating 4 is stretched to the right side of the figure with respect to the receiving frame 2, and is prevented from wobbling and being prevented from pulling upward or coming off. .

Although the grating 4 is a so-called side gutter cover in the illustrated example, it can also be applied to other transverse gutter covers and water collection covers.

Further, the grating 4 may be fixed between the left and right receiving frames 2 by tightening the bolts 11 to the left and right end plates 5, 5 so that the grating 4 is pressed against each other.

Furthermore, as shown in FIG. 4, a threaded hole 12 is directly formed in the end plate 5, a bolt 11 is screwed into this threaded hole 12 from the inside, and its tip is connected to the vertical side 2a of the receiving frame 2. You may also make them win.

As shown in the figure, the bolt 11 does not necessarily have to be pointed.

As explained above, according to this invention, since the bolt 11 is simply screwed into the end plate 5 of the grating 4 from the inside toward the vertical side 2a of the receiving frame 2 on the outside, the structure is simpler than anything else. be.

In addition, after the grating 4 is supported on the support frames 2, 2, there is no need for troublesome work such as positioning the -cuts, and all that is required is to tighten the bolts 11, so the installation work is extremely simple. This is of great benefit when fixing the grating 4 on the receiving frame 2.degree.2 for noise prevention and theft prevention.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the use of the grating according to this invention, Fig. 2 is a perspective view of its main parts, Fig. 3 is a longitudinal sectional front view of its main parts, and Fig. 4 shows another embodiment of this invention. FIG. 5 is a longitudinal sectional front view of an essential part of a conventional example. 1... Groove, 2... Receiving frame, 2a...
... Vertical side of receiving frame, 4 ... Grating, 5
...End plate, 6...Bearing bar, 7...Cross bar 19...Through hole, 10...Nut, 11... ...Bolt, 12...Screw hole.

Claims (4)

[Scope of utility model registration request] (1) To support and fix the lattice-shaped grating 4 on the support frames 2, 2 fixed to the left and right upper portions of the groove 1, bolts 11 are inserted into the end plate 5 of the grating 4 from the inside.
A grating fixing structure characterized in that the bolts 11 are screwed together and the tips of the bolts 11 are brought into contact with the vertical sides 2a of the receiving frame 2. (2) The grating fixing structure according to claim 1, wherein the bolt 11 is a bolt with a sharp point. (3) Drill a through hole 9 in the end plate 5, weld a hollow hole 10 inside the through hole 9, and bolt 11 is attached to the nut 10.
The grating fixing structure according to claim 1 or 2, which is screwed into the grating and inserted into the through hole 9. (4) The structure of the grating described in item 1 of the claim for registration of a utility model, in which the bolt 11 is screwed into a screw hole 12 provided through the end plate 5.