JPH102000A - Open-close type ditch cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability of the opening and closing of a ditch cover by easily peeling and removing ice even when ice is frozen on the surface of a handle for a snowfall period, and to enhance safety by preventing flying-out to an upper section from the ditch cover of the handle by the push force of snow dropped into a ditch at the time of the snow removal of a road. SOLUTION: Handles 15 installed to a ditch cover body 6 are manufactured by coating the surfaces of metallic bars with a synthetic resin. The handles 15 are stretched over notches 16 at the upper ends of a plurality of main bars 11 of the ditch body 6 so as to be crossed at right angles with the main bars 11, and both ends of the handles 15 are inserted to short cylindrical holders 17 welded to the main bars 11. One ends of the handles 15 are fixed by driving anti-slipping-off pins 20 consisting of spring pins to one ends thereof and the holders 17 orthogonally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an openable / closable groove cover used as a top cover for a road side gutter or a crossing gutter.

[0002]

2. Description of the Related Art As an openable / closable groove lid of this kind, for example, as shown in FIG.
Some are assembled so as to be rotatable around four. In normal times, this gutter is used for vehicles and traffic by closing the gutters and crossing gutters on the road.However, during snowfall, the gutters are opened to remove the snow accumulated on the road and remove gutters. It is dropped into the transverse groove. In particular, in snowy areas, such snow removal work is performed several times a day in order to prevent snow accumulated on roads from becoming root snow. A handle 25 is provided on the lid body 6 to facilitate opening and closing operations of the groove lid. FIG.
As shown in the figure, the handle 25 is formed by bending a metal rod or a metal pipe into a gate shape, and is suspended by its own weight over several main bars 11 of the lid body 6. When the handle 25 is pulled up by hand, a stopper 27 secured to both ends of the legs by nuts 26 is hooked on the lower end of the main bar 11 so as to obtain a protruding state in which the stopper 27 does not come out further upward. 6 is used for lifting. In FIG. 8, reference numeral 28 denotes a rubber ring inserted through the leg of the handle 25 for preventing the generation of contact noise with the main bar 11.

[0003]

However, in the above-mentioned conventional open / close type grooved lid in which the handle 25 is mounted so as to be raised and lowered, when the snow is dropped into the groove and the lid body 6 is closed when snow is removed, the inside of the groove is filled. At a certain snow pressure, the handle 25 protrudes upward from the upper surface of the lid body 6, and at this time, there is a risk that the handle 25 may be deformed and broken when a car passes, or a pedestrian may trip. Also, since the surface of the handle 25 is metal,
When the snow falls and freezes, ice cannot be easily removed from the surface of the handle 25, and if the ice is not removed, the hand cannot be accessed. Therefore, the handle 25 cannot be held, which is disadvantageous for the snow removing operation.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is an object of the present invention to provide an openable / closable groove lid capable of preventing a handle from jumping out and facilitating removal of ice when frozen. With the goal.

[0005]

According to a first aspect of the present invention, there is provided an opening / closing groove lid, wherein a lid body comprising a plurality of main bars and a cross bar arranged in a lattice in a receiving frame is provided with a pivot base end. The open / close groove cover which is pivotally mounted to be openable and rotatable about a rotation axis provided in a direction orthogonal to the main bar on the side of the main bar. A notch is recessed, and a handle is bridged over the notch so as to be orthogonal to the main bar. At least the surface of the handle is made of synthetic resin or rubber, and both ends of the handle are attached to a holder fixed to the main bar. The handle is inserted, and at least one end of the handle is fixed by a retaining pin inserted perpendicularly to the one end and the holder.

[0006] The opening and closing groove cover according to claim 2 is provided in a receiving frame,
A lid body formed by combining a plurality of main bars and crossbars in a lattice shape is pivotally mounted on the rotation base end side so as to open upward around a rotation axis provided in a direction parallel to the main bar and to be rotatable. In the openable / closable groove lid, a handle is attached to the rotation tip side of the lid body in parallel with the main bar, and a main bar and a crossbar corresponding to a place where the handle is attached are partially separated for maintenance. A space is formed, and a partition plate is disposed and fixed in the care space in an opposing manner. At least the surface of the handle is made of synthetic resin or rubber, and both ends of the handle face the care space of the partition plate. The handle is inserted through a holder fixed to the side to be fixed, and at least one end of the handle is fixed to this end and a retaining pin inserted perpendicularly to the holder.

[0007]

According to the opening / closing groove cover according to the first aspect, the handle is inserted and fixed at right angles to the main bar on the notch at the upper end of the main bar and both ends thereof are fixed to the holder fixed to the main bar. In addition, the handle is not pushed up by the snow dropped into the groove during snow removal and jumps out of the lid body. The handle can be grasped by passing a finger between the main bars. Since at least the surface of the handle is made of synthetic resin or rubber, the surface of the handle is hard to freeze ice, and even if it freezes, the ice can be easily peeled off. Since the handle is made of synthetic resin or rubber as described above, it cannot be directly welded to the main bar at the time of this attachment.However, insert both ends of the handle into the holder and pull out at least one end and the holder. Since it is only necessary to insert and stop the locking pin, it can be easily and easily mounted.

According to the opening and closing type groove lid according to the second aspect, the handle is fixed to the holder on the partition plate, so that the snow dropped into the groove also causes the handle to jump upward from the lid body. There is no. The handle can be easily grasped by putting a finger in the care space. At least the surface of the handle is made of synthetic resin or rubber, so even if ice freezes on the surface of the handle, it can be easily peeled off.In addition, the handle is attached by inserting both ends of the handle into the holder, at least It is the same as the case of the open / close type groove cover according to claim 1 in that it can be easily attached simply by inserting and retaining the retaining pin in one end and the holder.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) FIGS. 1 to 3 show a first embodiment of the present invention. 1 is a plan view of a one-sided groove cover, FIG. 2 is an enlarged sectional view taken along line AA in FIG. 1, and FIG. 3 is an exploded perspective view of a handle, a holder and a retaining pin. In FIG. 1, reference numeral 1 denotes a receiving frame, which is formed by welding the front and rear frames 2 and 3 made of L-shaped steel and the left and right frames 4 and 5 made of flat steel into a square shape. Reference numeral 6 denotes a lid main body which is arranged in the receiving frame 1 in the left-right direction in parallel. Each lid body 6 includes front, rear, left and right end plates 7, 8,
The frames 9 and 10 are framed in a rectangular shape, the main bar 11 is fitted between the front and rear end plates 7 and 8, and the cross bar 12 is fitted between the left and right end plates 9 and 10, and assembled and welded in a lattice shape. A hinge pipe 13 is integrally connected in parallel with the end plate 7 on the outside of the front end plate 7 which is the rotation base end side of each lid body 6, and the hinge pipe 13 is connected to the front frame 2 of the receiving frame 1. Is passed through one common rotating shaft 14 which is laid horizontally between the front ends of the left and right frames 4 and 5 inside. Therefore, each lid body 6 can be independently opened upward around the rotation shaft 14 and can be rotated.

A handle 15 is attached to a rear end side of the lid main body 6 which is a rotation front end side. As shown in FIG.
The handle 15 may be made entirely of a synthetic resin rod, or the surface of a metal rod may be painted with synthetic resin so that ice is hard to freeze on this surface and even if it freezes, it can be easily peeled off. Or by coating with a synthetic resin film. Examples of the synthetic resin include a vinyl chloride resin, an epoxy resin, and nylon, but rubber can be used instead of the synthetic resin. To give a preferred specific example, the handle 15
Galvanized steel bar 15a (length 140mm, diameter 14m)
m) to the vinyl chloride resin film 15b (30 to 500 μm thick)
To paint. When coating a resin film such as a vinyl chloride resin, the film thickness is set to 100 to 2000 μm. By the way, the main bar 1 in this specific example is
The interval between the first and the first 11 is about 30 to 40 mm.

A notch 16 is formed at the upper end of the plurality of main bars 11 on the pivotal tip side of the lid body 6 to which the handle 15 is attached so that the handle 15 is slightly sunk from the upper surface of the lid body 6 as shown in FIG. Holders 17 for holding both ends of the handle 15 are fixed to the main bars 11, 11 at the left and right ends having the notches 16 by welding or the like. Holder 17
The holder 17 is made of a metal short cylinder or a ring. The holder 17 is welded to the main bar 11 so that the end of the handle 15 can be inserted into the main bar 11 at an angle.
5 has a diameter of 14 mm, while the inner diameter of the short cylinder is 19 mm.
Set to about. For the length of the steel bar 15a of 140 mm,
The length of the short cylinder is set to about 20 mm.

Next, the procedure for attaching the handle 15 will be described. First, the handle 15 is tilted and one end is inserted into one holder 17 from above the lid body 6, then the handle 15 is changed to a horizontal posture, and the other end is set to the other holder 1.
Insert into 7. Lastly, the pin holes 18 and 19 provided at the ends of the holder 17 and the handle 15 are aligned with each other, and a retaining pin 20 such as a spring pin is driven into the holes at right angles. It can be mounted in a fixed state without protruding from the upper surface. The retaining pin 20 can be prevented from being detached from the holder 17 by being driven into only one end of the handle 15 as shown in the illustrated example, but may be driven into both ends thereof. Instead of a spring pin, it can be fixed with a snap pin (pine needle) or caulked with a rivet or the like. According to the holder 17 and the retaining pin 20, the lid body 2
The handle 15 can be easily and firmly fixed to
This is extremely advantageous as a fixing means instead of welding.

(Second Embodiment) FIGS. 4 to 6 show a second embodiment of the present invention. 4 is a plan view of the double-opening groove cover, FIG. 5 is an enlarged sectional view taken along line BB in FIG. 4, and FIG. 3 is a sectional view taken along line CC in FIG. In FIG. 4, reference numeral 1 denotes a receiving frame, which is formed by welding the front and rear frames 2 and 3 made of L-shaped steel and the left and right frames 4 and 5 made of flat steel into a square shape. Reference numeral 6 denotes a lid body incorporated in the receiving frame 1 so as to be able to open to the left and right. Each lid body 6 includes front, rear, left and right end plates 7, 8,
The frames 9 and 10 are framed in a rectangular shape, the main bar 11 is fitted between the front and rear end plates 7 and 8, and the cross bar 12 is fitted between the left and right end plates 9 and 10, and assembled and welded in a lattice shape. A hinge pipe 13 is integrally connected to the outside of the left end plate 9 in the left lid body 6 and to the outside of the right end plate 10 in the right lid body 6, in parallel with the end plates 9 and 10, respectively. Each of the hinge pipes 13 is respectively passed through a rotating shaft 14 which is horizontally extended between the ends of the front and rear frames 2 and 3 inside the left and right frames 4 and 5 of the receiving frame 1. Therefore, the left and right lid bodies 6 can be opened rightward and leftward about each rotation shaft 14.

A handle 1 is provided on the surface of each lid body 6 on the side of the tip of rotation.
5 is attached. The handle 15 makes it hard for ice to freeze on this surface, as in the case of the first embodiment.
The handle 15 may be entirely made of a synthetic resin rod, or a synthetic resin film 15b may be coated on the surface of the metal rod 15a, or a synthetic resin film may be formed so that the handle can be easily peeled off even if it freezes. It is constituted by coating.

As shown in FIGS. 5 and 6, the main bar 11 and the cross bar 12 at the tip end of the rotation of the lid main body 6 to which the handle 15 is attached form a care space 21 by being partially divided. Metal partition plates 22, 22 are arranged opposite to each other at divided ends of the front and rear main bars 11 in the care space 21, and are fixed to the divided ends of the main bar 11 by welding or the like. Maintenance space 21 for the partition plates 22
On the side facing, a handle 1 similar to that of the first embodiment is provided.
The holders 17, 17 made of a metal short cylinder or the like for holding the both ends of 5 are fixed to each other by welding or the like. The holder 17 can be easily welded to the divided end of the main bar 11 via the partition plate 22. Thus,
The handle 15 is inclined and one end is inserted into one holder 17 from above the lid body 6, and then the handle 15 is changed to a horizontal posture and the other end is inserted into the other holder 17. Lastly, the pin holes 18 and 19 provided at the ends of the holder 17 and the handle 15 are aligned with each other, and a retaining pin 20 such as a spring pin is driven into the holes at right angles, so that the handle 15 becomes a care space 21. It is mounted in a fixed state that does not protrude from the upper surface of the lid body 2 and in a horizontal state that is easy to hold.

In the first embodiment, the holder 17 is formed in a circular cross section so as to cover the entire circumference of the end of the handle 15, but the invention is not limited to this. It may have a semicircular cross section or a similar shape so as to cover only the upper half.

[0017]

According to the present invention, the handle is safe because it does not jump out due to the snow dropped into the ditch during snow removal on the road, and ice hardly freezes on the surface of the handle during snowfall. Even if it freezes, it can be easily peeled off, and the operability of opening and closing the groove lid during snowfall can be improved. The handle can be easily fixed to the lid body by a simple means of inserting both ends into the holder and inserting a retaining pin into at least one end and the holder.

[Brief description of the drawings]

FIG. 1 is a plan view of an openable / closable groove cover showing a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line AA in FIG.

FIG. 3 is an exploded perspective view of a handle, a holder and a retaining pin.

FIG. 4 is a plan view of an openable / closable groove cover according to another embodiment.

FIG. 5 is an enlarged sectional view taken along line BB in FIG. 4;

FIG. 6 is a sectional view taken along line CC in FIG. 5;

FIG. 7 is a plan view of a conventional openable groove cover.

FIG. 8 is an enlarged sectional view taken along line DD in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiving frame 6 Lid main body 11 Main bar 12 Cross bar 14 Rotating axis 15 Handle 16 Notch 17 Holder 20 Locking pin 21 Care space

Claims (2)

[Claims] 1. A lid body comprising a plurality of main bars and cross bars combined in a lattice shape in a receiving frame, and a lid body is provided on a rotation base end side around a rotation axis provided in a direction orthogonal to the main bar. In the openable and closable lid that is pivotally opened and pivoted, a notch is recessed at an upper end of the plurality of main bars on the rotation tip side of the lid body, and a handle is orthogonal to the main bar on the notch. At least one surface of the handle is made of synthetic resin or rubber, and both ends of the handle are inserted into a holder fixed to the main bar, and at least one end of the handle is orthogonal to the one end and the holder. An openable and closable lid, which is fixed with a retaining pin inserted. 2. A lid frame formed by combining a plurality of main bars and cross bars in a lattice shape on a receiving frame, and a lid body is provided on a rotation base end side around a rotation axis provided in a direction parallel to the main bar. In an openable / closable lid that is pivotally opened and pivotally attached, a handle is attached to a pivotal tip side of the lid body in parallel with the main bar, and a main bar and a crossbar corresponding to a location where the handle is attached. Are partially divided to form a care space, and partition plates are disposed and fixed in the care space in opposition to each other, and at least the surface of the handle is made of synthetic resin or rubber. The partition is inserted into a holder fixed to the side facing the care space of the partition plate, and at least one end of the handle is fixed by a stopper pin inserted orthogonally to this end and the holder. Open Shikimizofuta.