JPH018620Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a gutter cover used for a concrete gutter or the like.

As shown in FIGS. 1 and 2, the conventional groove cover 1 has a plurality of main members 2 along the width direction and a plurality of auxiliary members 3 along the longitudinal direction, which are joined together in a crossing manner. Side plates 4 extending in the longitudinal direction are fixed to both ends in the width direction to form a lattice-like structure. In this case, since the side plate 4 is made of a steel strip with a plate thickness similar to that of the main member 2, the overall strength is weak, and the welded part between the side frame 4 and the main member 2 is directly connected to the side plate 4. Since the load is applied in the vertical direction, there is a risk that the welded part will break, and there was a drawback of poor durability. Furthermore, when the gutter cover 1 is installed at the opening of the concrete gutter 5, if the gutter cover supporting steps 6 provided on both sides of the opening directly support the gutter cover, both sides of the gutter cover can be directly supported. Since the width of the lower surface of the side plate 4 at the side is narrow and corresponds to the thickness of the steel strip, the concrete surface of the stepped portion 6 is seriously damaged. A receiving frame 7 is attached, and the groove cover 1 is supported by this receiving frame 7.
If the receiving frame 7 is provided in this way, the construction will be complicated and the construction cost will be high, and when a car or the like passes over the receiving frame 7, the groove cover 1 and the receiving frame 7 will come into contact and produce a metallic sound, which will cause noise. It was becoming.

In addition, when installing a large number of the groove covers 1 in parallel, conventionally the main members 2 of the groove covers adjacent to each other are connected with bolts or nuts, or the groove covers 1
They were connected using separate connecting fittings. However, when bolts, nuts, and connecting fittings that are separate from the groove cover 1 are used, there are disadvantages such as an increase in the number of parts and a complicated connection work.

The present invention was developed in order to eliminate these conventional drawbacks; it has excellent strength and durability, simplifies gutter construction by omitting the gutter cover frame, and reduces construction costs. To provide a gutter cover which can be easily connected to each other, and can easily prevent noise.

In other words, the groove lid of the present invention is formed in a lattice shape with a plurality of main members along the width direction and a plurality of auxiliary members along the longitudinal direction, and has a lattice shape with a plurality of main members along the width direction and a plurality of auxiliary members along the longitudinal direction. In a groove cover provided with side frames, the side frames are formed by band-shaped side plates and a frame member having a substantially U-shaped cross section in which the lower wings are formed wider than the upper wings, so that the tips of the lower wings protrude toward the main member side. The cross section of the main member is formed into a substantially rectangular cylindrical shape, and the lower surface of the end of the main member is supported by the tip protrusion of the lower wing of the side frame, and the end surface of the main member is in contact with the side plate of the side frame. It is characterized in that the frame is fixed to the end of the main member.

The present invention will be explained below based on the embodiments shown in FIG. 3 and subsequent figures.

11 is a main member, 12 is an auxiliary member, and 13 is a side frame. For the main member 11, for example, a steel plate formed with a substantially I-shaped cross section is used, and for the auxiliary member 12, for example, a twisted steel bar with a hexagonal cross section is used. A plurality of auxiliary members 12 are arranged at regular intervals in the longitudinal direction, and a plurality of auxiliary members 12 are intersected with the main member 11 along the longitudinal direction of the structure cover, and are connected by a known means such as pressure welding to form a lattice-shaped groove. The lid main body is assembled, and side frames 13 are fixed to both ends of the main member 11 on both sides in the width direction by welding to form a lattice-shaped groove lid 10 having a predetermined width and length.

In this case, the side frame 13 is formed to have a rectangular cylindrical cross section, and in the embodiment shown in FIGS.
The frame member 15, which is formed wider and has a substantially U-shaped cross section, is fixed by welding so that the tip surface of the upper wing 15a is flush with the outer surface of the side plate 14, and the tip of the lower wing 15b is closer to the outer surface of the side plate 14. It is formed into a substantially rectangular cylindrical cross section that protrudes outward (to the main member side). And lower wing 1
5b supports the lower surface of the end of the main member 11, and the side frame 13 is attached to the end of the main member 11 with the upper surface of the main member 11 and the upper surface of the upper wing 15a flush with each other. It is fixed by welding. As a result, the overall strength of the groove cover 10 can be greatly increased.

In addition, during the above-mentioned welding, the upper and lower ends of the side plate 14 and the upper wing 15a and the lower wing 15b may be welded over the entire length in the longitudinal direction, or may be partially welded at several locations, but this side frame According to the configuration of No. 13, a side plate 14 in a band shape and a frame member 15 having a substantially U-shaped cross section.
The side plate 1 is formed into a substantially rectangular cylindrical shape in cross section.
4 is supported on the lower wing 15b, both upper and lower ends of the side plate 14 and the upper wing 15 of the frame member 15
a and both longitudinal ends of the lower wing 15 (4 locations in total)
It is sufficient to only partially weld only the parts, and thereby the labor of welding can be omitted. Also, when welding the side frame 13 and the main member 11, the entire circumference of each main member 11 may be welded.
Since the end portion of the main member 11 is supported by the tip protrusion of the lower wing 15b of the side frame 13, for example, one out of three main members 11 is fully welded to the side frame 13, and the other main members are welded to the side frame 13. Even if only the upper and lower ends of 11 are partially welded, sufficient strength can be obtained, and the labor of welding can also be omitted.

In the groove cover 10, a locking tool 16 is provided at one end of the side frame 13, and a locked tool 17 is provided at the other end. The locking tool 16 is formed into a downward hook shape,
Its base end is inserted into an opening at one end of the side frame 13 and fixed to the inner surface of the upper wing 15a by welding, and its tip is projected outward from the opening of the side frame 13 in the longitudinal direction. The locked tool 17 is formed into a U-shape in plan, and its both ends are fixed to the inner surface of the side plate 14 of the side frame 13 and the inner surface of the web portion 15c of the frame member 15 by welding, and its tip is fixed to the inner surface of the side plate 14 of the side frame 13 and the inner surface of the web portion 15c of the frame member 15. It is made to protrude outward in the longitudinal direction from the opening. In this case, the locked tool 17 may be formed into a hook shape like the locking tool 16, and may be attached laterally. In addition, the shapes of the locking tool 16 and the locked tool 17 are not particularly limited, and can be arbitrarily determined as desired.

Furthermore, in the groove cover 10, a cushioning material 18 made of synthetic rubber or the like is attached to the lower surface of the side frame 13. In this case, since the side frame 13 is formed to have a substantially rectangular cylindrical cross section, holes 19 are formed at several locations on the lower wing 15b.
By providing this, the band-shaped cushioning material 18 having a certain width can be easily attached using blind rivets 20, etc., and it can also be easily replaced. In addition, as mentioned above, in the conventional gutter cover, only the side plates made of band steel are attached to both sides in the width direction, so it is difficult to attach the above-mentioned buffer material to this part.

When using the groove cover 10 configured as described above,
Instead of providing a conventional receiving frame on the groove cover support step portions 22 formed on both sides of the upper end opening of the concrete side gutter 21, the gutter cover 1 is placed on the concrete surface of the step portion 22.
It is only necessary to directly engage and support both sides of 0. Even if such a receiving frame is omitted, the side frames 13 of the groove cover 10 can be formed into a rectangular cylindrical cross section by the side plates 14 and the frame material 15 having a U-shaped cross section, and the lower wings 15b of the frame material 15 can be Since it is formed wider than the upper wing 15a, the supported area of the groove cover 10 relative to the stepped portion 22 is large, and it is possible to prevent localized concentrated loads from being applied to the stepped portion 22, thereby reducing the concrete surface of the stepped portion 22. damage can be prevented as much as possible. In addition, the side plate 14 of the side frame 13 and the end of the main member 11 have a substantially U-shaped cross section.
Since the structure is such that it is supported on the lower wing 15b of the main member 11 and the side plate 14, it is possible to prevent vertical bending loads from being applied to the welded portion between the main member 11 and the side plate 14, and the strength of the groove cover itself can be greatly improved. Furthermore, since the receiving frame can be omitted as described above, it is possible to reduce the generation of noise such as metallic sounds due to the contact between the groove cover and the receiving frame as in the prior art. In particular, if the buffer material 18 is attached to the lower surface of the side frame 13 as in the above embodiment, damage to the concrete surface can be more reliably prevented, and noise such as the metallic sound can be more effectively prevented. and,
This also prevents the groove cover from sliding sideways, allowing for stable installation.

Moreover, the groove covers 10 and 10 adjacent to each other are
By engaging the locking tool 16 provided at the ends of the side frames 13, 13 facing each other with the locked tool 17, the connection can be made very easily. At this time, initially, the locking tool 16 and the locked tool 17 are engaged with the groove covers 10, 10 butted against each other with an appropriate gap, and then the gap between both groove covers 10, 10 is closed. or by bringing the end surfaces of both groove lids 10, 10 into close contact with each other and inserting the locking tool 16 and the locked tool 17 inside the open ends of the side frames 13, 13 facing them. It is also possible to prevent the lids 10, 10 from jumping up.

As explained above, according to the groove cover of the present invention,
The side frames are formed into a substantially rectangular cylindrical cross section by band-shaped side plates and a frame member having a substantially U-shaped cross section with the lower wing formed wider than the upper wing, and the ends of the main square members and the side plates are Since it has a structure in which it is supported on the lower wing of the frame material, it has the effect of being significantly stronger and more durable than conventional products. Moreover, the gutter cover receiving frame for the gutter can be omitted, simplifying the construction of the gutter, shortening the construction period, and saving construction costs. Further, even if the receiving frame is omitted, the supported area of the gutter cover relative to the gutter cover supporting step of the side gutter can be increased by the wide lower wing, and damage to the concrete surface of the step can be prevented as much as possible; This makes it possible to prevent the generation of noise such as metallic sounds caused by the contact between the groove cover and the receiving frame as in the conventional case.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing how a conventional gutter cover is used;
Fig. 2 is a cross-sectional view taken along the - line in Fig. 1, Fig. 3 and subsequent figures show embodiments of the present invention, Fig. 3 is a plan view of the groove cover, and Fig. 4 is a cross-sectional view taken along the - line in Fig. 3. , Fig. 5 is a perspective view of the part shown in Fig. 3, Fig. 6 is a longitudinal sectional view of the same part, Fig. 7 is a perspective view showing the usage state of the groove cover, and Fig. 8 is a perspective view of the part shown in Fig. 3.
The figure is a longitudinal sectional view of the same, FIG. 9 is a plan view showing the connection state of the groove covers, FIG. 10 is a cross-sectional view taken along the line - - of FIG. 9, and FIG. 11 is a partial perspective view of the connecting part of the groove covers. be. 10... Groove cover, 11... Main member, 12... Auxiliary member, 13... Side frame, 14... Side plate, 15... U-shaped frame material, 16... Locking tool, 17... Engaged Stop.

Claims (1)

[Scope of utility model registration request] In a groove lid formed in a lattice shape by a plurality of main members along the width direction and a plurality of auxiliary members along the longitudinal direction, and side frames along the longitudinal direction are provided at both ends in the width direction. , the both side frames are formed into a substantially rectangular cylindrical cross-section with the tips of the lower wings protruding toward the main member by band-shaped side plates and frame members having a substantially U-shaped cross section with the lower wings being wider than the upper wings. , the lower surface of the end of the main member is supported by the protruding tip of the lower wing of the side frame, and the side frame is fixed to the end of the main member with the end surface of the main member in contact with the side plate of the side frame. A groove lid characterized by: