JP3079966U - Anti-bounce grating - Google Patents

Abstract

(57) [Summary] [Problem] In the present invention, a vehicle or the like passes over a grating,
The most important feature is to have a jump-up prevention mechanism so as not to jump up with respect to the size of the gap between the impact and the grating and the frame material. A holed member serving as a key material guide is attached to the lower part of the grating, the key material is inserted into the hole for the hole processing, and an opening / closing operation handle member is attached to the key material. A perforated member is attached to the bottom surface of the grating, and a stopper is attached thereto.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is anti-bounce grating, which has the function to prevent the bounce of grating mainly laid in the drainage of roads.

[0002]

[Prior art]

 Conventionally, gratings, which combine strips and crossbars in a grid, have been used for lids on road gutters and masques. Grating has an aperture ratio of about 70%, and is often used in places where the features of high water drainage and air permeability can be utilized.

However, in rare cases, when a vehicle passes over the grating, the vehicle may jump up due to the impact and the size of the gap between the grating and the frame material.

[0004] In the prior art, a method of welding a bolt to a receiving frame and fixing the grating with a nut is known.

[0005]

[Problems to be solved by the invention]

 The problem to be solved is to provide a grating having a jump-up prevention mechanism so that a vehicle or the like passes over the grating and does not jump up due to the impact and the size of the gap between the grating and the frame material. It is to be.

In addition, bolt fixing requires a tool for attaching and detaching the grating, which requires a great deal of work. The problem to be solved is that the grating can be easily attached and detached without using a tool. .

[0007]

[Means for Solving the Problems]

 At the bottom of the grating, attach a member (2) that has been drilled (1) to serve as a key material guide. Then, the key material (3) is inserted into the hole of (1), and the opening / closing operation handle member (4) is attached to (3).

[0008] A member (5) having a perforated hole is attached to the bottom surface of the grating, and a fastening member (6) is attached thereto. The present invention is a bounce-preventing grating having the above configuration.

[0009]

[Embodiment of the invention]

 FIGS. 1 to 3 show a case in which a bounce-preventing grating is laid, in which the key material is caught by a projection (8) on the inner surface of the cell to prevent bounce.

In this state, the stop member (6) is located below the upper surface of the grating, and the stop member (6) cannot rotate between the main members, so the arm member attached to the opening / closing operation handle (4). (7) interferes with the stopper (6), and the stopper is working so that it does not release naturally.

Conversely, when the stopper (6) is lifted from the upper surface of the grating to the upper surface and becomes rotatable, the stopper (6) does not interfere with the arm member (7) of the opening / closing operation handle (4). 3) can be released by operating, and the grating can be removed.

FIGS. 4 to 6 are explanatory views of the operation when the key material is opened and closed on the upper surface of the grating without using a tool when removing the jumping prevention grating.

[0013]

[Effect of the invention]

 According to the present invention, the drainage and air permeability, which are the conventional features of grating, can be utilized as they are, and the key material can be used to prevent jumping.

Further, since the key material can be opened and closed without using a tool, the opening and closing of the grating is facilitated.

[Brief description of the drawings]

FIG. 1 is a plan view

FIG. 2 is a front view

FIG. 3 is a side view

FIG. 4 is a three-side view showing that the stopper is lifted and rotated 90 degrees.

FIG. 5 is a three-sided view showing that the handle is held and slid.

FIG. 6 is a three side view showing removal of the grating.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drilling (key material guide) 2 Key material holding member 3 Key material 4 Handle for opening and closing operation 5 Stopping material holding member 6 Stopping material 7 Arm material 8 Projection

Claims (3)

[Utility model registration claims] In a method for preventing the grating from jumping up when a vehicle or the like passes over the laid grating, a key material which can freely enter and leave the grating and a concave portion of a receiving frame are fitted and integrated. A buckling prevention grating characterized by providing a stopper for preventing natural release of the key material. 2. A locking member for preventing natural release of a key material. When the grating is laid, in a state where the locking material is permanently installed and is located below the upper surface of the grating, natural release is prevented by controlling entry of the key material. Conversely, when the opening and closing of the grating is required, the stopper is lifted up from the upper surface of the grating to enable operation, and it is possible to switch the key material into and out of the suppressed state and the movable state. 2. The anti-bounce grating according to claim 1. 3. The anti-bounce grating according to claim 1, wherein the key member and the stopper member are formed in a gap between the main members of the grating.