JPS6211137B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cover for a ditch, and in particular, to prevent slippage by fitting protrusions made of an elastic material into openings formed in the cover at appropriate intervals, and to provide a cover for a ditch. Protrusions with suction cups are fitted into the holes drilled at appropriate intervals along the length of both sides of the lid in the width direction, and are attracted to the suction surfaces provided on both sides of the width direction of the ditch. This prevents the cover from slipping.

Generally, a cover made of a flat plate of metal or synthetic resin is attached to a ditch used for water supply, drainage, drainage, etc., and this cover is equipped with a member to prevent pedestrians from slipping on the ditch. It is necessary to provide one, and various types have been used in the past. For example, in the case of a metal cover, a striped steel plate with striped protrusions is used, or a flat steel plate is formed with hemispherical protrusions by press working. However, striped steel plates cannot maintain a sufficient anti-slip effect for a long period of time, and those made with hemispherical protrusions may cause itching to the soles of pedestrians' feet or cause noise due to contact with studs on the soles of shoes. There are obstacles and difficulties such as emitting light. In particular, from the viewpoint of sanitary control, it is preferable to use stainless steel covers for drains installed in kitchen rooms in factories, etc. However, providing the above-mentioned protrusions on stainless steel is not possible without machining. This will increase costs and lead to a rise in manufacturing costs. In addition, in the case of a cover made of synthetic resin, it is easy to mold a hemispherical protrusion, but
It tends to wear out prematurely and has problems in terms of strength.

Furthermore, when the cover is attached to the upper edge of the ditch, it must be securely fixed to the cover so that it does not slip from the ditch and pose a hazard to pedestrians. Prevent the cover from shifting by attaching a guide plate to the ditch, or by fixing a stepped edge metal piece to both edges of the upper end of the ditch and fitting the cover to the stepped part of the edge metal piece. ing. However, although the installation cost of the guide plate is low, the cover does not fit well with the ditch and is prone to shaking, and the thickness of the cover makes the upper edge of the ditch difficult to fit in. This creates a step, which has the disadvantage of impairing the smoothness of the floor. In addition, with a cover fitted to the stepped part of the edge hardware, it can be installed on the same plane as the floorboard, but this is especially true in the case of wide ditches, and the weight of the cover is lighter in narrow ditches. Because of this, it is easy to lift up, and it has the disadvantage that it can eventually come off from the stepped portion of the edge hardware, resulting in misalignment.

This invention was made in order to eliminate the drawbacks of the conventional gutter cover as described above, and an object of the present invention is to provide a gutter that can reliably maintain its anti-slip effect over a long period of time. It is an object of the present invention to provide a cover that is firmly attached to a ditch and does not swing or shift; It is an object of the present invention to provide a cover that has an extremely simple structure that reliably provides anti-slip and anti-slip effects, and that is smooth with the flat surface of the floorboard. It is an object of the present invention to provide a non-slip member and a non-slip member that are easy to attach and detach and have a simple manufacturing process.A further object of the present invention is to eliminate discomfort and harm to pedestrians, as well as reduce noise while walking. The goal is to prevent the occurrence of

That is, as illustrated in the embodiments described later, the present invention provides a head portion having an outer diameter larger than the hole diameter of the opening 6a formed in the opening 6a at a position excluding both widthwise edges of the cover 5. A relay part 1 having an outer diameter approximately equal to the diameter of the opening 6a is provided between the trunk part 9a and the body part 10a.
A protrusion 8a made of an elastic body molded with 1a interposed therebetween is fitted so that the cover 5 is sandwiched between the head 9a and body 10a of the protrusion 8a, and both sides of the cover 5 in the width direction are fitted. The holes 6b, which are formed at appropriate intervals along the length of the edge, are connected to each other through a relay part 11b having an outer diameter approximately equal to the diameter of the hole 6b. A head 9b and a body 10b are provided, and a suction cup 1 is provided at the lower end of the body 10b.
A protrusion 8b made of an elastic body formed by providing 3.
The head 9b and the body 10b of the protrusion 8b are fitted so as to sandwich the cover 5, and the suction cups 13 of the protrusion 8b are provided on both widthwise edges of the ditch 1. The present invention relates to a cover for a ditch, which is characterized in that it can be adsorbed to 2a.

Embodiments of the present invention will be described below with reference to the drawings. Fig. 2 shows an example of a cover provided with a cover as a non-slip member, and the upper end of the ditch 1 constructed of concrete is provided with a cover in the length direction on both sides in the width direction. Along the line, L-shaped steels 2 are attached with anchor bolts 3 so that the upper surfaces of the L-shaped steels 2 on both side edges are on the same plane in the length direction and the width direction, respectively. The upper surface of the L-shaped steel 2 is located at an appropriate height lower than the upper end surface of the ditch 1, and a guide 4 is installed at the side end of the upper surface so as to be at the same height as the upper end surface of the ditch 1. It is fixed along the length direction by means such as welding. The cover 5 attached to the ditch 1 is made of a mild steel plate, a stainless steel plate, or a synthetic resin plate, as shown in FIG. It is approximately equal to the length in the width direction between the two, and the length is appropriately selected. A plurality of openings 6a are formed at appropriate intervals in the width direction of the cover 5, excluding both widthwise edges, and in its length direction. Between the openings 6a, elongated holes 7 are formed with appropriate lengths in the width direction, and rainwater, sewage, etc. flow into the ditch 1 through the elongated holes 7. A protrusion 8a serving as a non-slip member is fitted into the opening 6a. The cover 8a is made of elastic synthetic rubber such as neoprene, nitrile rubber, or other synthetic resin elastic body and is integrally molded using an appropriate molding device.
As shown in the figure, it is composed of a head portion 9a, a body portion 10a, and a relay portion 11a. The head 9a has a hemispherical shape, and the outer diameter of its bottom surface (lower surface) is larger than the diameter of the opening 6a formed in the cover 5. The shape of the head 9a is not necessarily hemispherical, but may be polygonal, or the top may be flat. The body portion 10a has a cylindrical shape with an appropriate length in the axial direction, and its outer diameter is slightly larger than the hole diameter of the opening 6a, similar to the head portion 9, and a tapered portion 12a is provided at its lower end. . The shape of the body portion 10a does not necessarily have to be cylindrical, but may be polygonal. Relay part 11
a has a cylindrical shape with an outer diameter approximately equal to the diameter of the opening 6 a, and its length in the axial direction is approximately equal to the thickness of the cover 5 .

In order to fit the protrusion 8a having the above structure into the opening 6a of the cover 5, use an appropriate jig so that the lower end of the body 10a of the protrusion 8a faces the opening 6a, and the head 9a
Just press . Since the tapered portion 12a is provided at the lower end of the body portion 10a, it easily passes through the opening 6a, and the relay portion 11a fits into the opening 6a.

As a result, the lower surface of the head 9a of the projection 8a and the upper surface of the cover 10a come into contact with the front and back surfaces of the cover 5, respectively. Since the outer diameters of the head 9a and the body 10a are both larger than the diameter of the opening 6a, the protrusion 8a once fitted into the opening 6a
is not detached in either the vertical direction.

This protrusion 8a does not fit into the openings 6b on both sides of the cover 5 in the width direction. What fits into this opening 6b is a protrusion 8b serving as a slip prevention member. Therefore, the protrusion 8b that is effective as a slip-stopping member for the cover 5 will be described next.

The cover 8b serving as the anti-slip member is the cover 5
The head 9b, the cover 10
b, a relay section 11b, and a suction cup 13. The shapes of the head portion 9b, body portion 10b, and relay portion 11b are the same as those of the protrusion 8a as the anti-slip member, so a detailed description thereof will be omitted. The suction cup 13 is formed by providing a lip portion at the lower end of the tapered portion 12b of the body portion 10b. This protrusion 8b is fitted onto the cover 5 by the same means as the protrusion 8a as the anti-slip member. To attach the cover 5 to the ditch 1, use the upper surface of the L-shaped steel 2 provided at the upper end of the ditch 1 as the suction surface 2a, place the suction cup 13 on this, and press the cover 5 by stepping on it. good. Since the lip portion of the suction cup 13 is tightly joined to the suction surface 2a of the L-shaped steel 2, the cover 5 is securely fixed and will not swing or shift from the ditch. If stainless steel L-shaped steel is used, the adsorption effect can be further enhanced.

When the cover 5 is to be removed from the ditch 1, it is sufficient to insert a hook-shaped rod into a long hole 7 formed in the cover 5 and pull it up, and both attachment and detachment can be performed with extremely easy operation.

Although an appropriate jig is used to fit the protrusion and the cover as described above, it is also possible to form the protrusion and fit the cover to the cover in one step. That is, synthetic rubber molding molds are attached to both sides of the cover 5 in which the openings are made, and injection pressing is performed using the molds in which protrusions are formed at the positions where the openings are made. Thus, a cover fitted with the cover of the present invention can be obtained. Moreover, this process allows for mass production and is extremely economical.

In addition, this protrusion is molded from an elastic material such as synthetic rubber, and has the necessary and sufficient wear resistance in terms of strength, so it has a long lifespan.
It is not necessary to make all of the relay part and the body part solid; for example, a part of the body part can be suitably hollowed out to form a hollow body.

Furthermore, by mixing fluorescent paint into the molding material when molding the protrusion, it is also possible to use it as a light emitting body for night lighting.

Since the gutter cover according to the present invention has the structure and function as described above, it is possible to achieve both anti-slip and anti-slip effects with an extremely simple structure and an inexpensive protrusion. . In addition, this protrusion not only endures long-term use without falling off from the cover, but also can be easily attached to and removed from the cover, so even if wear and tear occur, it can be easily replaced. I can do it. Furthermore, there is no obstruction or noise when walking, and it is possible to maintain smoothness with the floor surface.

[Brief explanation of the drawing]

Figure 1 is a plan view showing an embodiment of the invention, Figure 2 is a plan view showing an embodiment of the invention.
The figure is the same cross-sectional view, and Figure 3 is the anti-slip member (protrusion)
An enlarged sectional view of FIG. 4 shows the anti-slip member (protrusion)
FIG. In the figure, 1 is a ditch, 2 is an L-shaped steel, 2a is a suction surface,
5 is a cover, 6a, 6b are openings, 8a, 8
9a and 9b are the heads of the protrusions, 10a and 10b are the bodies of the protrusions, 11a and 11b are relay parts of the protrusions, and 13 is a suction cup of the protrusions.

Claims (1)

[Claims] 1 A hole bored at a position other than both widthwise edges of the cover has an outer diameter that is larger than the hole diameter of the hole, and an outer diameter that is approximately equal to the hole diameter of the hole between the head and the body. A protrusion made of an elastic body molded with a relay part interposed is fitted so that the cover is sandwiched between the head and body of the protrusion, and the lengthwise direction of both widthwise edges of the cover is A head portion and a body portion each having an outer diameter larger than the hole diameter of the hole are connected to the hole drilled at appropriate intervals along the hole through a relay portion having an outer diameter approximately equal to the hole diameter of the hole. A protrusion made of a molded elastic body with a suction cup provided at the lower end of the body is fitted so that the cover is sandwiched between the head and body of the protrusion, and the suction of the protrusion is A cover for a ditch, characterized in that the disc can be attracted to suction surfaces provided on both sides of the ditch in the width direction.