JP2002161574A - Hole cover device for tread of side ditch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hole cover device for a tread of a side ditch capable of adjusting the upper and lower positions of a stopper and the stopper is always arranged in the orthogonal direction against the longitudinal direction of the hole cover. The fixing and release works of the stopper are extremely simplified and the hole cover of the tread can be securely and easily fitted to the holes of the tread of the side ditch and the fitting work of the hole cover of the tread can be done even at dark night. SOLUTION: The hole cover 2 is formed in a nearly rectangular shape in plan view. And a guide rail 12 extending downward from the hole cover is formed as a unit, and the stopper 5 inserted into the guide rail from below is disposed in the right angle against the longitudinal direction of the hole cover and further, the stopper is provided so as to adjust the upper and lower position by the screw shaft 3 set in the central part of the hole cover, and further, a reflecting body 9 is arranged at both longitudinal ends on the upper face of the hole cover in the hole cover device of the tread of the side ditch.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tread hole cover device for covering a handle hole provided in a tread plate of a side groove of a road or the like.

[0002]

2. Description of the Related Art Conventionally, in a tread hole cover device for covering a handle hole provided in a tread plate of a side groove of a road or the like, a substantially L-shaped stopper is provided at both longitudinal ends of a tread plate hole cover and a back surface thereof. And each stopper is provided with a bolt inserted into a long hole formed near both ends in the longitudinal direction of the hole cover of the tread plate, and the hole cover device of the tread plate of the side groove screwed to the back surface of the hole cover of the tread plate is provided. For example, JP-A-10
It is publicly known as shown in JP-A-131273.

[0003]

By the way, in the known apparatus, in order to securely lock the stopper to the tread plate, the stopper must be manufactured with a strict height of the column of the stopper, and the tread plate must be manufactured. When locking and releasing the hole cover of the tread on the tread plate in the side groove, the bolt must be loosened and the stopper must be moved along the long hole. There is a possibility that it becomes difficult to move the stopper due to the long hole being used and the long hole being clogged with stones, dust and the like, or the long hole being deformed.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to adjust the vertical position of a stopper so that the stopper extends in the longitudinal direction of the hole cover. It is always arranged at right angles to the direction, and the work of locking and releasing the stopper is extremely easy. The hole cover of the tread plate can be securely and easily attached to the hole of the tread plate in the side groove, and the tread plate hole cover can be attached even in dark night. An object of the present invention is to provide a hole cover device for a tread of a side groove which can be operated.

[0005]

In order to achieve the above-mentioned object, a hole cover device for a tread of a gutter according to the present invention has a hole cover having a substantially rectangular shape in a plan view and a hole cover on both sides of a center portion of the hole cover. A screw formed integrally with a guide rail extending downward from the cover, a stopper inserted through the guide rail from below in a direction perpendicular to the longitudinal direction of the hole cover, and the stopper provided at the center of the hole cover. The vertical position can be adjusted by a shaft, and reflectors are arranged at both ends in the longitudinal direction of the upper surface of the hole cover.

[0006]

1 to 5 relate to an embodiment of the present invention. FIG. 1 is a plan view of a hole cover device for a side groove tread plate according to the present invention, and FIG. Sectional view,
FIG. 3 is a rear view of FIG. 1, FIG. 4 is a plan view in which the hole cover device of the side groove tread plate is temporarily attached to the side groove tread plate, and FIG. 5 is a main portion in which the side groove tread plate hole cover device is attached to the side groove tread plate. It is sectional drawing.

[0007] In the drawings, reference numeral 1 denotes an entirety of a hole cover device for a tread plate of a side groove. The cover device 1 is a hole cover 2 of a tread plate and a screw shaft extending downward from the center thereof. It is composed of a bolt 3 for use and a stopper 5 which is locked to the step plate 4 of the side groove.

The hole cover 2 of the tread plate is made of synthetic resin such as reinforced plastic and has a substantially rectangular shape in plan view. Each corner of the rectangle is rounded off, each side is gently inclined upward, and a plurality of drainage cuts 6, 6
... are formed. A plurality of drainage holes 7, 7, ... are formed in the upper surface of the hole cover 2 of the tread plate in the longitudinal direction, and a number of anti-slip projections 8,
Are formed at both ends in the longitudinal direction.
Is arranged.

A hole 10 for mounting the bolt 3 is formed in the center of the hole cover 2 of the tread plate.
The bolt 3 adjusts the vertical position of the stopper 5, and a hexagon socket head bolt or the like is used.

Then, on the back surface of the hole cover 2 of the tread plate,
A bolt seat 11 through which the bolt 3 is inserted into the center and the head with the hexagonal hole is abutted, and two guide rails 12 extending downward on both sides of the center to guide the stopper 5 , 12 and locking pieces 14, 14,... Abutting on the inner surface of the elongated hole 13 formed in the step board 4 are formed integrally with the hole cover 2.

The stopper 5 is made of a synthetic resin such as reinforced plastic and has a substantially rectangular shape in a plan view. The size of the stopper 5 is large enough to pass through the long hole 13 formed in the tread plate 4 of the side groove. The side has a length approximately three times the width of the long hole 13. In the center of the stopper 5, a hole 15 is formed in which a female screw for screwing the vertical position adjusting bolt 3 is threaded. Further, a nut 16 for preventing the stopper 5 from falling off is screwed to the bolt 3 at a lower portion thereof. Further, on both sides of the hole 15, holes 17, 17 for inserting the guide rails 12, 12 are formed.

In the hole cover device 1 having the above-described structure, the stopper 5 is always covered by inserting the guide rails 12, 12 of the hole cover 2 of the tread plate into the holes 17, 17 of the stopper 5. The bolt 3 for adjusting the vertical position is placed in the hole 15 in which the female screw of the stopper 5 is threaded while being arranged so as to be perpendicular to the longitudinal direction of the stopper 2.
And set the position of the stopper 5 to approximately the thickness of the tread plate 4 in the side groove.

Then, in order to install the assembled hole cover device 1 on the tread 4 of the side groove, the stopper 5 is inserted in a direction in which the stopper 5 can be inserted into the long hole 13 of the tread 4 of the side groove.
By temporarily rotating the both ends in the longitudinal direction of the hole cover 2 by 90 degrees by hand, the upper surface of the stopper 5 is brought into contact with the back surface 18 of the tread plate 4 in the side groove, and the hole cover device 1 is rotated.
Can be easily and easily installed on the footboard 4 of the side groove. At this time, when the stopper 5 is not securely in contact with the tread plate 4 in the side groove, the stopper 5 is moved upward by tightening the hexagon socket head cap screw at the center of the upper surface of the hole cover 2 so that the tread plate 4 in the side groove is moved. Is securely contacted. When the hole cover device 1 is attached to the tread plate 4, even if the hexagon socket head bolt 3 is tightened as described above, the stopper 5 is always operated by the guide rails 12, 12 formed on both sides of the bolt 3. The direction is perpendicular to the longitudinal direction of the hole cover 2.

Further, since the reflectors 9 and 9 are arranged at both ends in the longitudinal direction of the upper surface of the hole cover 2, not only can the presence of the hole cover device 1 be known even in dark night, but also the locking and releasing of the hole cover device 1 can be performed. Work can also be facilitated.

[0015]

According to the hole cover device of the stepping plate of the gutter according to the present invention, the hole cover is formed in a substantially rectangular shape in plan view, and guide rails extending downward from the hole cover are integrally formed on both sides of the center of the hole cover. And a stopper inserted through the guide rail from below is disposed in a direction perpendicular to the longitudinal direction of the hole cover, and the stopper is provided so as to be vertically adjustable with a screw shaft provided at the center of the hole cover, In addition, since reflectors are arranged at both ends in the longitudinal direction of the upper surface of the hole cover,
The vertical position of the stopper can be adjusted, the stopper is always arranged in a direction perpendicular to the longitudinal direction of the hole cover, the operation of locking and releasing the stopper is extremely simple, and the hole cover of the tread plate is attached to the hole of the tread plate in the side groove. Thus, the hole cover device for the tread of the side groove can be attached securely and easily and the work of attaching the hole cover of the tread plate can be performed even in dark night.

[Brief description of the drawings]

FIG. 1 is a plan view of a hole cover device for a tread of a gutter according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a plan view in which a hole cover device for a side groove tread is temporarily attached to a side groove tread.

FIG. 5 is a sectional view of a main part in which a hole cover device for a side groove tread plate is attached to the side groove tread plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hole cover device of side groove tread plate 2 Hole cover of tread plate 3 Screw shaft (vertical position adjustment bolt) 4 Tread plate of side groove 5 Stopper 9 Reflector 12 Guide rail

Claims (1)

[Claims] 1. A hole cover device for a tread plate for covering a handle hole provided in a tread plate of a side groove, wherein the hole cover has a substantially rectangular shape in a plan view, and is formed on both sides of a center portion of the hole cover downward from the hole cover. An extended guide rail is integrally formed, a stopper inserted through the guide rail from below is disposed in a direction perpendicular to a longitudinal direction of the hole cover, and the stopper is vertically positioned by a screw shaft provided at a center portion of the hole cover. A hole cover device for a tread of a side groove, wherein the hole cover device is provided so as to be adjustable, and reflectors are arranged at both ends in the longitudinal direction of the upper surface of the hole cover.