JP3237640U - Gretching groove lid splash reduction metal fittings. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jumping reduction metal fitting which can be attached with a bolt nut by utilizing this principle which is hard to come off when the fingers of the left and right hands are opened and inserted between the left and right fingers. SOLUTION: An upper backing plate 2 bent from above is inserted into a frame portion of an existing gretching groove lid 1, a lower backing plate 3 is provided on the lower side so as to sandwich the frame of the gretching groove lid, and a holding plate 4L is further lowered. Apply 4R and attach with bolt nut 5. [Selection diagram] Fig. 2

Description

The present invention is a jumping reduction metal fitting for the existing gretching groove lid.

A metal fitting that reduces jumping at joints using this principle, which is difficult to remove when the fingers of the left and right hands are opened and inserted between the left and right fingers.

When installing an off-the-shelf gretching groove lid, simply place it or connect it with a bolt nut to reduce the cause of noise generated from the passage of vehicles, etc. after many years have passed since the installation.

Means to try to solve the problem

In the present invention, by inserting two round steels on the back surface of the joint of the left and right gretching groove lids at different positions, the joint does not jump to the upper part and noise deviation can be reduced.

Effect of the device

By fixing in the direction of the frame of the gretching groove lid, the metal fittings can be firmly fixed and noise deviation is reduced.

It is a state diagram which attached the metal fitting of this invention. Plane and side view with the metal fittings of the present invention attached Figure of upper plate 2 and lower plate 3 of the metal fittings of the present invention Parts of the metal fittings of the present invention Figure of holding plate left 4L · Figure of holding plate right 4R · Figure of figure 8 mm plate bolt nut 5 ·

As shown in FIG. 1, by fixing the metal fittings with bolt nuts, the round steel portions of the metal fittings (4L) and (4R) can enter the back surfaces of the groove lids, and the joint between the groove lids can be prevented from jumping up.

Part (2) is a part in which a 1.6 mm iron plate is inflated so that it can be inserted into the frame of the gretching groove lid so as not to hit the welded part of the bent frame, and two bolt holes are drilled.
Part (3) is a part made of a 1.6 mm iron plate with two bent bolt holes as shown in Fig. 4.
Parts (4L), (4R), are 4.5 mm thick, 44 mm wide, 55 mm long, and have two bolt holes in the core as shown in Fig. 5, with a thickness of 12 mm on the back side of one side. The part shown in FIG. 5 that can be inserted into the back of the gretching groove lid by welding and fixing a round steel with a length of 110 mm.
The part (5) is an 8 mm countersunk bolt nut as shown in FIG.

By attaching the above parts as shown in FIG. 3, they can be connected and the jumping noise is reduced.

1 Existing gretching groove lid 2 Upper plate 3 Lower plate 4L Press plate left 4R Press plate right 5 8 mm countersunk bolt nut

It is a state diagram which attached the metal fitting of this invention. Plane and side view with the metal fittings of the present invention attached. Figure of the metal fitting part upper support plate 2 of the present invention Figure of the metal fitting part bottom support plate 3 of the present invention Part of the metal fitting of the present invention Figure of holding plate 4L · Figure of holding plate 4R · Parts of the metal fittings of the present invention 8 mm flat plate bolt nut 5

Claims (1)

Gretching groove lid splash reduction metal fittings that can be attached to the back surface of the existing gretching groove lid with a holding plate welded and fixed to 12 mm round steel protruding from a 4.5 mm iron plate with a bolt nut.

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