JP7490335B2 - Filling tool for lining boards - Google Patents

Description

The present invention relates to a gap filler for lining plates, which is used to fill gaps that occur between adjacent lining plates when they are installed.

Generally, when construction is carried out in an underground space, a covering plate is laid on the top surface of the underground space to allow vehicles and pedestrians to pass through. However, the laid covering plates may not adhere closely to each other, resulting in gaps, which can cause problems such as noise and rattling when passing through. For example, Patent Documents 1 to 3 disclose inventions that are used to fill the gaps between laid covering plates.

Patent Document 1 describes a spacer that is installed in the gap between lining plates or between a lining plate and a frame member. It has a main body whose dimension in the gap width direction increases as the dimension in the lining plate thickness direction decreases, and an adjustment member that adjusts the dimension of the main body in the lining plate thickness direction. The adjustment member is composed of a bolt that penetrates the main body from above in the plate thickness direction, and a receiving member that receives the bolt on the underside of the main body.

Patent Document 2 describes a covering plate soundproofing device that is interposed between covering plates that cover the top opening of a work space, or between a covering plate and a frame body arranged around the work space, to prevent noise and displacement caused by interference between covering plates or between the covering plate and the frame body, and to seal gaps.

Patent Document 3 describes a joint member made of rubber or plastic with a roughly T-shaped cross section that is detachably attached to the gap-like joints that occur between adjacent covering plates, in which a hollow portion is provided in the leg of the joint member that is inserted into the joint to form the joint member, and a covering plate in which this joint member is set in the joint of the covering plate.

Japanese Patent No. 4140659 Japanese Patent Application Laid-Open No. 09-165708 Utility Model Registration No. 3096927

The spacer described in Patent Document 1 has a main body, an adjustment member, and a flange member. The adjustment member is made up of a bolt that passes through the main body from the top and a receiving member that receives the underside of the bolt. However, as a spacer to be installed in the gaps that occur between covering plates or between covering plates and a frame member, the structure is somewhat complicated.

The covering plate soundproofing device described in Patent Document 2 is designed to prevent noise and misalignment by providing uneven parts that can be inserted between covering plates or between the covering plate and the frame, but if the misalignment becomes too large, it becomes ineffective.

The joint member described in Patent Document 3 has a roughly T-shaped cross section, is simple in structure, and can be easily inserted, but if the gap is large, it may not adhere well to the covering plate and may come loose.

In light of the above-mentioned background, the present invention aims to provide a filler for lining plates that is simple in structure, easy to install, and provides sufficient adhesion when inserted into the gap between lining plates.

The gap filler for covering plates of the present invention is a gap filler for covering plates made of an elastic body for filling gaps that occur between adjacent covering plates that have been laid, and is characterized in that it comprises an upper flange having a width larger than the gap and having its lower side in contact with the upper surfaces of the adjacent covering plates to cover the gap between the adjacent covering plates from above, a web extending vertically downward from the upper flange, and fin-shaped protrusions arranged in pairs on both sides of the web at intervals in the vertical direction, having a flat shape that becomes thinner toward the tip, and which are inserted into the gap by bending due to their own elastic deformation, so that their tips are in close contact with the side of the covering plate.

By making the upper flange of the lining plate gap filler wider than the gap, it can cover the gap from above, preventing objects from getting into the gap. The multiple protrusions on the web that extends downward from the upper flange bend as they are inserted into the gap and come into close contact with the side of the lining plate. The presence of the protrusions makes it possible to accommodate a variety of gap widths. Also, by making the protrusions fin-shaped, they are easily bent, making it easier to insert the lining plate gap filler into the gap between lining plates.

Furthermore, if the material of the gap filler for lining plates of the present invention is an elastic body, it can absorb vibrations and rattles that occur when people or vehicles pass over the lining plate, leading to a soundproofing effect. The width of the gap between adjacent lining plates varies depending on the location of the lining plate installed, but if the material is elastic, the protrusions can bend easily, making it possible to accommodate a variety of gaps with one size. Furthermore, the installation work can be easily performed, and after removal, it can be reused at another site.

It is advisable that the fin-shaped projections on the gap filler for the lining plate become thinner toward the tip. If the projections become thinner toward the tip, they will be easier to bend and insert into the gap.

It is also preferable that the fin-shaped protrusions have a horizontal upper surface and a tapered lower surface. When inserting the protrusions into the gap from the lower end of the web, the tapered lower surface of the protrusions allows them to bend upward along the side of the lining plate, making it easier to insert. Meanwhile, because the upper surface of the protrusions is horizontal, the lining plate filler is less likely to shift upward even if the gap between the lining plates widens.

The filler for lining plates of the present invention has the above-mentioned configuration and provides the following effects.
(1) By providing multiple pairs of fin-like projections spaced apart in the vertical direction on both sides of the web, the tool can be fitted tightly to the side of the lining plate when inserted into the gap. Also, one lining plate filler can be used for various gap widths, and the deformation of the fin-like projections can be used to accommodate both slight and large misalignments.
(2) The tip of the protrusion is thin, making it easy to bend and insert into a gap.
(3) The elastic material of the covering plate makes it easy to absorb vibrations and sounds caused by people and vehicles passing over the plate. It can also be reused after removal.

FIG. 2 is a schematic perspective view showing one embodiment of the filler for lining plates of the present invention when installed in a gap between lining plates. 1 is a cross-sectional view perpendicular to the longitudinal direction showing one embodiment of a filler for a covering plate of the present invention. FIG. FIG. 3 is a cross-sectional view showing an embodiment different from that shown in FIG. 2 .

Specific embodiments of the present invention will be described below with reference to the accompanying drawings. Figure 1 is a schematic perspective view showing one embodiment of the present invention in which a gap filler 1 for lining plates is installed in a gap between lining plates 2.

For example, when constructing an underground space, lining plates 2 are laid lengthwise and widthwise as shown in Figure 1 to allow vehicles and pedestrians to pass over the underground space under construction. In this case, gaps are created between adjacent lining plates 2, so lining plate filler 1 is inserted and installed to fill the gap. Figure 1 shows an example in which lining plate filler 1 is installed in the width direction of lining plate 2, but lining plate filler 1 can also be inserted and used in the lengthwise direction of lining plate 2 or between the lining plate and the frame body.

Figure 2 shows a cross-sectional view perpendicular to the longitudinal direction of one embodiment of the gap filler 1 for covering plates, with dimensions shown in mm as an example for use in gaps of 15 mm to 25 mm.

The cross section of the lining plate filler 1 has an 8 mm wide web 1b extending downward from the center of the upper flange 1a, and the length from the top surface of the upper flange 1a to the bottom end of the web 1b is 64 mm. The corners of the top surface of the upper flange 1a are chamfered so that when the lining plate filler 1 is installed in the gap between the lining plate 2, the step between the surface of the lining plate 2 and the upper flange 1a of the lining plate filler 1 is gradual. For gaps of 15 mm to 25 mm, the width of the upper flange is 40 mm, and the gap is covered from above by the upper flange, preventing fine particles such as sand and dust from entering the gap.

Three protrusions 1c are provided on each of the left and right sides of the web 1b, spaced 11 mm apart. The protrusions 1c extend vertically from the web 1b, and the length from tip to tip of the left and right protrusions 1c is set to 30 mm, which is shorter than the width of the upper flange 1a.

The projection 1c has an upper surface that extends vertically from the web 1b and a tapered lower surface, giving it a fin-like shape that is pointed from the base of the projection 1c, which is 3 mm thick, toward the tip. When inserted into the gap from the lower end of the web 1b, the projection 1c gradually bends as it is inserted, and the lower surface of the projection 1c comes into close contact with the side of the covering plate 2. A fin-like projection 1c as shown in Figure 2 is easy to bend, making it easy to insert the covering plate gap filler 1 into the gap. Meanwhile, because the upper surface of the projection 1c is horizontal, even if the gap between the covering plates 2 widens, the covering plate gap filler 1 is less likely to shift upwards.

Figure 3 is a cross-sectional view perpendicular to the longitudinal direction showing an embodiment different from that shown in Figure 2, and shows a cross-section smaller than that shown in Figure 2. This is an example for use in gaps of 10 mm to 15 mm, and the dimensions are shown in mm.

In the cross section of the lining plate filler 1 in Figure 3, a 5 mm wide web 1b extends downward from the center of the upper flange 1a, and the length from the top surface of the upper flange 1a to the bottom end of the web 1b is 64 mm. The corners of the top surface of the upper flange 1a are chamfered so that when the lining plate filler 1 is attached to the lining plate 2, the step between the surface of the lining plate 2 and the upper flange 1a of the lining plate filler 1 is gentle. For a gap of 10 mm to 15 mm, the width of the upper flange is 30 mm, covering the gap from above and preventing fine particles such as sand and dust from getting in.

Three protrusions 1c are provided on each of the left and right sides of the web 1b, spaced 11 mm apart. The protrusions 1c extend vertically from the web 1b, and the length from tip to tip of the left and right protrusions 1c is set to 20 mm, which is shorter than the width of the upper flange 1a.

The projection 1c has an upper surface that extends vertically from the web 1b and a tapered lower surface, giving it a fin-like shape that is pointed from the base of the projection 1c, which is 3 mm thick, toward the tip. When inserted into the gap from the lower end of the web 1b, the projection 1c gradually bends as it is inserted, and the lower surface of the projection 1c comes into close contact with the side of the covering plate 2. A fin-like projection 1c as shown in Figure 3 is easy to bend, making it easy to insert the covering plate gap filler 1 into the gap. Meanwhile, because the upper surface of the projection 1c is horizontal, the covering plate gap filler 1 is less likely to shift even if the gap between the covering plates 2 widens.

In the embodiment shown in Figures 2 and 3, a cross section is shown with three pointed projections 1c on each side, but the dimensions of the upper flange 1a and web 1b of the gap filler 1 for the covering plate need only take into account the width of the gap in the covering plate, and there are no particular limitations on the number and shape of the projections 1c, or the spacing between the top and bottom of the projections.

As shown in Figures 2 and 3, by providing protrusions 1c on the left and right sides of web 1b, one size can be used to accommodate gaps of different widths, even though the gap width varies depending on the location. Also, by deforming the fin-shaped protrusions 1c, it is possible to accommodate both slight and large misalignments.

The material of the gap filler 1 for the lining plate may be any elastic material, such as chloroprene rubber. If it is an elastic material, it will absorb the vibration and rattle of the lining plate 2, leading to a soundproofing effect. It can also be easily attached to the gap between the lining plates 2, and can be reused at other sites after being removed.

The shape of the body of the gap filler 1 for lining plates is preferably a rod-like shape extending perpendicularly to the cross section as shown in Figures 2 and 3, which is easy to install. Furthermore, if the material is elastic, it can be easily cut and adjusted on site according to the length of the gap.

1 ... Filler for covering plate, 1a ... Upper flange, 1b ... Web, 1c ... Protrusion,
2...Covering plate, 3...Hanging hole

Claims (2)

A gap filler for covering plates made of an elastic body for filling gaps that occur between adjacent covering plates that have been laid, characterized in that the gap filler for covering plates has an upper flange that has a width larger than the gap and whose lower side contacts the upper surfaces of the adjacent covering plates to cover the gap from above, a web that extends vertically downward from the upper flange, and multiple pairs of fin-shaped protrusions arranged at intervals in the vertical direction on both sides of the web, which have a flat shape that becomes thinner toward their tips, and which are inserted into the gap by bending due to their own elastic deformation, so that their tips are in close contact with the side of the covering plate. 2. A filler for lining plates according to claim 1 , wherein the fin-like projections have a horizontal upper surface and a tapered lower surface.