JPS6115110Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a noise prevention device for a gutter cover.

BACKGROUND OF THE INVENTION Grit-shaped and other gutter covers used for cross-drains and side drains are loosely received in metal frames attached to the upper edge of each gutter.
As a result, the groove cover rattles as vehicles pass by, producing metallic impact noise, causing noise pollution.

In view of the above, an object of the present invention is to provide a noise prevention tool for a groove cover that can suppress rattling of the groove cover and prevent the generation of noise.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a drain groove, and 2 is a receiving frame fixed to the upper end side wall portion of the drain groove 1. In this example, it is formed of a metal member to receive the groove cover 3.

The groove cover 3 is formed into a frame in the form of a lattice, and noise prevention devices NR, which will be described later, are installed at appropriate locations on the outer periphery of the groove cover 3.
A fitting recess 4 is formed for mounting.

Next, to explain the noise prevention device NR, which is the gist of the present invention, the noise prevention device NR consists of a pair of closely fitting pieces M ₁ and M ₂ each formed of a metal material, and these pieces facing each other in the vertical direction. In this example, both the contact pieces M ₁ and M ₂ are formed to have substantially the same shape.

Each of the contact pieces M ₁ and M ₂ can be loosely inserted into the fitting recess 4 and has a substantially chair-shaped cross section, and also has front leg parts 5 and 5' and back receiving parts 6 and 6. Slide surfaces S ₁ to _{S 4} formed by substantially parallel slopes are formed on each surface side of . Furthermore, the dorsal side receiving parts 6, 6' and the rear leg parts 7,
Pressing parts P ₁ to _{P 4} in which V grooves 8 to 8 are formed along the longitudinal direction at the center of the sides on both back parts with 7'.
are integrally formed to protrude horizontally, and the pressing surfaces formed on the front surfaces of both pressing portions P ₁ to _{P 4} of each contact piece M ₁ and M ₂ are substantially flush with each other.

Now, both contact pieces M ₁ formed as above,
In order to connect the M ₂ vertically facing each other, there is a central part of the opposing surface T ₁ forming a horizontal surface in the lower contact piece M ₁ (hereinafter referred to as the fixed side contact piece). A screw hole 9 is threaded. On the other hand, in the upper contact piece M ₂ (hereinafter referred to as the movable side contact piece), the opposing surface T ₁ of the fixed side contact piece M ₁
The screw hole 9 is provided in the center of the opposing surface _T2 facing the
An elongated hole 10 is provided correspondingly. This elongated hole 10 is formed to extend from the dorsal side receiving part 6' side to the front leg part 5' side (in the left-right direction in the figure) with a predetermined length,
In this example, it is slightly deviated toward the dorsal side receiving portion 6'. When connecting both the contact pieces M ₁ and M ₂ , the adjusting piece is inserted from the bottom of the long hole 10 of the movable side contact piece M ₂ to the screw hole 9 of the fixed side contact piece M ₂ via the washer 11. Bolt B is screwed in, and as this adjustment bolt B is screwed forward or backward, the movable side contact piece M ₂
can slide obliquely along the slope of the slide surfaces S ₁ to S ₄ .

Continuing, the operation and effect of this embodiment configured as described above will be specifically explained.

First, when assembling the two contact pieces M ₁ and M ₂ , with the fixed side contact piece M ₁ on the lower side and the movable side contact piece M ₂ on the upper side, each of the corresponding slide surfaces S ₁
~ S ₄ Place both the contact pieces M ₁ and M ₂ vertically facing each other while making contact with each other, and then insert the adjustment bolt from the back side of the movable side contact piece M ₂ into its elongated hole 10 through the washer 11. Insert B and fixing side contact piece M ₁
Slightly screw into the screw hole 9 of the noise prevention tool NR.
(Refer to the imaginary line state in Figure 3.) At this time, the shaft of the adjusting bolt B should be inserted into the long hole 1.
It is located at the end of the dorsal side receiving portion 6' (towards the left in the figure) of 0.

While maintaining this state, fit into the fitting recess 4 of the groove cover 3.
The pressing portions P ₁ to _{P 4} of both contact pieces M ₁ and M ₂ are inserted toward the side surface of the groove cover 3 and the side surface of the receiving frame 2, respectively, and placed on the bottom of the receiving frame 2. After that, when adjusting bolt B is screwed in the required amount, the movable side contact piece
M ₂ is slid diagonally downward to the left in the figure with both sliding surfaces S ₃ and S ₄ and both sliding surfaces S ₁ and S ₂ of the corresponding fixed side contact piece M ₁ in contact with each other. In other words, due to this sliding displacement, the noise prevention tool NR is amplified by a predetermined width (width △W shown in Fig. 3), and as a result, at each pressing portion P ₁ to _{P 4} of both contact pieces M ₁ and M ₂ Since both side surfaces of the groove cover 3 and the receiving frame 2 are pressed, the groove cover 3 is firmly fixed, and its rattling is suppressed.

In addition, in the above case, the shaft portion of the adjustment bolt B is relatively moved in the direction of the front leg of the long hole 10 (rightward in the figure).

In the above embodiment, even if the pressing force of the noise prevention device NR against the groove cover 3 is reduced due to wear of the pressing parts _P1 to _P4 , the desired pressing force can be achieved by screwing the adjustment bolt B. Not only is it possible to obtain noise prevention equipment by unscrewing adjustment bolt B.
If the pressing action of NR is released, the same preventive device NR
Since the groove cover 3 can be easily removed from the fitting recess 4, the inside of the groove cover 3 can be easily cleaned.

As explained above, the present invention is provided with a groove cover and a receiving frame into which it can be fitted, and is provided with front and rear leg parts and a dorsal receiving part, each of which is formed into a chair-shaped cross section. The noise prevention device is of a type in which a pair of close contact pieces are combined in a facing state, and when a screw means connecting the two close contact pieces is screwed, it slides in a direction that extends between the groove cover and the receiving frame. The sliding surfaces of both contact pieces are formed in two places, the front leg part and the back side receiving part, while the back side receiving part and the rear side leg part form a pressing part against the groove cover or the receiving frame, The gist is that this pressing part is provided with a V-groove for preventing slipping. Therefore, by tightening the screw means, the groove cover and the receiving frame are stretched, and the groove cover can be firmly fixed. Therefore, generation of noise when a vehicle or the like passes is prevented. Further, in the present invention, the sliding surfaces of both contact pieces are formed at two locations, the front leg portion and the dorsal side receiving portion. This means that when lateral pressure (reaction force against thrust force) is applied, the frictional force that resists this is large, and in combination with the effect of the V groove provided on the pressing part, the groove This will further improve the ability to fix the lid.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a front view of the noise prevention device, Fig. 2 is a plan view of the same, Fig. 3 is a front sectional view of the same, and Fig. 4 is a cross-sectional view of the same. FIG. 5 is a plan view showing an example of use of the noise prevention device, and FIG. 5 is a sectional view of FIG. 4. 2... Receiving frame, 3... Groove cover, _M1 , _M2 ... Close contact piece, _S1 to _S4 ... Sliding surface, _P1 to _P4 ... Pressing part,
B...Adjustment bolt.

Claims (1)

[Scope of utility model registration request] Interposed between the groove cover and the receiving frame into which it can be fitted,
When a pair of close-fitting pieces each having a chair-shaped cross section and having front and rear leg sections and a dorsal side receiving section are combined in an opposing state, and a screw means connecting both the close-fitting sections is screwed, , a noise prevention device of the type that slides in the direction of extension between the groove cover and the receiving frame, wherein sliding surfaces of both contact pieces are formed at two locations, the front leg portion and the dorsal side receiving portion; A noise prevention tool, characterized in that the back side receiving part and the rear side leg part form a pressing part against the groove cover or the receiving frame, and this pressing part is provided with a V-groove for preventing slipping.