Fastening tool storage casing for installing a wall railing and sealing means for the installation fastening tool storage space

Abstract

To shorten the construction period at the time of installation in a wall balustrade manufactured by a precast method, and to easily inspect and replace a fastening tool for installation after installation.SOLUTION: A storage casing 10 is mounted to a wall balustrade 2 fixed to a floor slab 1 of a road with an anchor bolt (mounting fastener) 5. The storage casing 10 comprises a casing body 11 that is fitted in an installing fastener storage space 3 opening in the front surface of the wall balustrade 2 and storing the head of the anchor bolt 5 and that has an opening 11a in front thereof and a through hole 11 b through which the shaft of the anchor bolt 5 can pass in the bottom thereof, and a lid 12 that opens and closes the front opening 11a of the casing body 11. This eliminates the conventional work of filling the storage space 3 with mortar, etc., thereby shortening the construction period at the time of installation than before, and facilitating inspection and replacement of the anchor bolts 5 after installation.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a storage casing that is fitted into a fastening tool storage space for storing the head of a fastening tool for installing a wall railing, and a sealing means for the fastening tool storage space.

Background Art

[0002] A wall railing is a wall-shaped protective fence installed along the side edge of a road on a road bridge, highway, etc., to prevent automobiles from jumping out of the road. Some of these wall railings are manufactured by a precast method in a factory and fixed to the road floor slab by fastening tools such as anchor bolts at the installation site.

[0003] As described above, the wall railing manufactured in the factory has a plurality of fastening tool storage spaces that open on the front surface and store the heads of the fastening tools for installation, formed in the longitudinal direction, and through holes are drilled from each fastening tool storage space through the bottom surface to pass the shaft portion of the fastening tool for installation. When fixing this wall railing to the floor slab at the installation site, usually, with the wall railing lifted on the floor slab, alignment is performed between each through hole and the fastening tool fixed to the floor slab, and then the wall railing is lowered so that the shaft portion of the fastening tool for installation passes through the through hole, and a pressing member is attached to the head of the fastening tool protruding into the fastening tool storage space and tightened with a nut. Then, when the fixing of the wall railing to the floor slab is completed, the fastening tool storage space is filled with mortar or the like (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, when filling the fastening tool storage space with mortar or the like after fixing the wall railing with the installation fastening tool as in the above Patent Document 1, due to reasons such as a shortage of workers for placing the mortar or the like and a delay in the placing work due to rain, it may take an extra number of days for installation.

[0006] In addition, there has been a problem that when inspecting and replacing the installation fastening tool after installation or when it becomes necessary to replace the wall railing itself due to an accident or the like, it is very time-consuming to remove the mortar or the like filled in the fastening tool storage space.

[0007] Therefore, an object of the present invention is to shorten the construction period at the time of installation and to enable easy inspection and replacement of the installation fastening tool after installation in a wall railing manufactured by a precast method.

Means for Solving the Problems

[0008] In order to solve the above problems, a first invention of the present application is fitted into a fastening tool storage space that opens on the front surface of a wall railing and houses the head of the installation fastening tool for the wall railing, has an opening on the front surface, and has a through hole or notch on the bottom surface through which the shaft portion of the installation fastening tool can pass. Provided is a fastening tool storage casing for a wall railing having a casing body and a lid for opening and closing the opening on the front surface of the casing body (Configuration 1).

[0009] By using the installation fastening tool storage casing of the above Configuration 1, the work of filling the fastening tool storage space with mortar or the like can be eliminated, so that the work can proceed without being affected by a shortage of workers or the weather during the installation of the wall railing, and the construction period can be shortened compared to the conventional case. Further, when inspecting and replacing the installation fastening tool after the installation of the wall railing, it is not necessary to remove the mortar or the like from the fastening tool storage space, and the work can be easily performed simply by opening the lid of the installation fastening tool storage casing.

[0010] In the above Configuration 1, the lid can be detachably attached to a flange portion provided on the periphery of the opening on the front surface of the casing body (Configuration 2).

[0011] In the above-described Configuration 1 or 2, it is preferable that a water-stop member is provided on the outer periphery of the opening on the front surface of the casing main body to seal water between the inner surface of the mounting fastener storage space of the wall railing (Configuration 3). In this way, it is possible to effectively prevent the intrusion of rainwater or the like into the mounting fastener storage space. And if the water-stop member protrudes forward from the opening on the front surface of the casing main body so as to seal water between the casing main body and the lid (Configuration 4), it is also possible to prevent the corrosion of the mounting fasteners.

[0012] In any one of the above-described Configurations 1 to 4, the casing main body has a notch on its bottom surface through which the shaft portion of the mounting fastener can pass and opens to the rear surface side, and an opening continuous with the notch on the bottom surface is provided on the rear surface. A rear wall for closing the opening on the rear surface is detachably attached. By removing the rear wall, the head of the mounting fastener can be made to be able to enter and exit through the opening on the rear surface (Configuration 5). In this way, when it becomes necessary to replace the mounting fastener storage casing due to a collision of an automobile with the wall railing or the like, it is only necessary to open the lid and remove the rear wall of the casing main body, and then the casing main body can be slid out to the front side without interfering with the mounting fasteners, and the replacement work can be performed efficiently.

[0013] Furthermore, in any of the above Configurations 1 to 5, with the shaft portion of the mounting fastener passed through the through-hole or notch on the bottom surface of the casing body, a waterproof layer covering at least the periphery of the shaft portion of the mounting fastener is formed of resin on the bottom surface of the casing body, and the upper surface of the waterproof layer is a horizontal surface or an inclined surface inclined downward toward the front surface of the casing body (Configuration 6). This Configuration 6 can be particularly effectively applied to the mounting fastener storage casing used for the inner wall railing of the road curve section. That is, generally, in the inner wall railing of the curve section, the bottom surface of the mounting fastener storage space is inclined so as to be lower on the back side than on the front side. Therefore, when there is moisture in that space, the mounting fastener may get wet. On the other hand, if the mounting fastener storage casing of Configuration 6 is used, it becomes difficult for moisture to stay around the mounting fastener, and the step between the bottom surface of the casing body and the waterproof layer serves to prevent the intrusion of moisture from the front side to around the mounting fastener, and it becomes possible to prevent the mounting fastener from getting wet.

[0014] In addition, the second invention of the present application adopts a configuration (Configuration 7) in which a lid member that opens and closes the opening of the mounting fastener storage space is attached to the wall railing as a sealing means for sealing the mounting fastener storage space that opens on the front surface of the wall railing and houses the head of the mounting fastener for the wall railing.

[0015] Even when the sealing means for the mounting fastener storage space of Configuration 7 is adopted, similar to the case of using the mounting fastener storage casing, it becomes unnecessary to fill the mounting fastener storage space with mortar or the like, so the construction period can be shortened when installing the wall railing, and the inspection and replacement work of the mounting fastener after installing the wall railing can be easily performed.

[0016] In the above Configuration 7, the lid member can be detachable from the wall railing (Configuration 8).

Effect of the Invention

[0017] The fastening tool storage casing for installing a wall railing of the present invention and the sealing means for the installation fastening tool storage space eliminate the need to fill the installation fastening tool storage space with mortar or the like, as described above. Therefore, in a wall railing that employs this, the construction period during installation can be shortened compared to the conventional method, and the inspection and replacement work of the installation fastening tools after installation can be easily performed.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0019] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a state in which a wall railing 2 using an installation fastening tool storage casing 10 (hereinafter, also simply referred to as a "storage casing") of the first embodiment is installed on a road floor slab 1. This wall railing 2 is manufactured by a precast method in a factory and is a horizontally long wall-shaped block body, and a hunch portion 2a having a right-angled triangular cross-section is formed at the lower end side of the front surface (the surface on the road side).

[0020] Further, as shown in FIGS. 1 and 2, the wall railing 2 has an opening at a position straddling the central portion in the height direction of its front surface and the hunch portion 2a, and a fastening member storage space (hereinafter, also simply referred to as the "storage space") 3 where the storage casing 10 is arranged is formed at a predetermined interval in the longitudinal direction. And two bolt holes 4 penetrating from the lower surface of each storage space 3 to the bottom surface of the wall railing 2 are provided, and the shaft portions of anchor bolts (fastening members for installation) 5 fixed to the floor slab 1 are passed through the bolt holes 4, and the heads of the anchor bolts 5 are to be stored in the storage space 3 in the storage casing 10. Further, the storage casing 10 will also store a pressure supporting member 6 attached to the outer periphery of the head of each anchor bolt 5 and a nut 7 screwed to the anchor bolt 5 to tighten the pressure supporting member 6. Note that a cover for imparting water resistance may be attached to the head of the anchor bolt 5 in some cases.

[0021] As shown in FIGS. 1 to 3, the storage casing 10 includes a casing body 11 fitted into the storage space 3 and having an opening 11a on the front surface, and a lid 12 for opening and closing the opening 11a of the casing body 11. The casing body 11 and the lid 12 are made of stainless steel.

[0022] The casing body 11 has a shape as a whole that is substantially the same as the storage space 3, and the vertical edge of the opening 11a on its front surface is bent along the front surface shape of the wall railing 2, and a through hole 11b through which the shaft portions of two anchor bolts 5 can both pass is provided on its bottom surface. Note that the through hole 11b can also be changed to a notch opening on one side of the bottom surface of the casing body 11. Further, an inward flange portion 11c for attaching the lid 12 is provided on the periphery of the opening 11a on the front surface.

[0023] The lid 12 is a plate-like member that is rectangular in front view, bent along the front surface shape of the wall railing 2, and fitted into the opening of the storage space 3, and its peripheral portion is detachably attached to the flange portion 11c of the casing body 11 by a plurality of bolts 13.

[0024] Here, when the casing body 11 is positioned by butting against the inner surface on the back side of the storage space 3, the depth dimension is such that its flange portion 11c is located slightly deeper than the opening edge of the storage space 3. Also, the peripheral edge of the hole through which the bolt 13 of the lid 12 passes is projected to the back side, so that the head of the bolt 13 fits into the recess formed on the front side of the lid 12. As a result, after the storage casing 10 is installed, the front surface of the lid 12 is flush with the front surface of the wall railing 2, and the head of the bolt 13 for attaching the lid 12 does not project from the front surface of the wall railing 2.

[0025] Also, on the outer periphery of the opening 11a on the front surface of the casing body 11, a rubber sponge 14 is provided as a water-stop member that seals the space between the inner surface of the storage space 3 over the entire circumference. Further, the rubber sponge 14 projects forward from the opening 11a on the front surface of the casing body 11 and is bent toward the front side of the flange portion 11c of the casing body 11. By fixing the peripheral edge of the lid 12 to the flange portion 11c of the casing body 11 while sandwiching the bent portion 14a of the rubber sponge 14, the space between the casing body 11 and the lid 12 is also sealed against water.

[0026] Also, on the outer periphery of the bottom surface side of the opening 11a on the front surface of the casing body 11, a water-permeable sheet 15 is provided which is sandwiched between the lower surface of the rubber sponge 14 and the bottom surface of the storage space 3. Even if rainwater or the like enters the storage space 3, the moisture is discharged to the outside through the water-permeable sheet 15.

[0027] Next, the construction procedure at the installation site of the wall railing 2 using this storage casing 10 will be described. When installing this wall railing 2, first fit the storage casing 10 into the storage space 3 in advance, remove the lid 12, and push in and position the casing body 11. Lift the wall railing 2 in this state on the floor slab 1, align the bolt holes 4 of the wall railing 2 with the anchor bolts 5 fixed to the floor slab 1, and then lower the wall railing 2 so that the shaft portion of the anchor bolt 5 passes through the bolt holes 4 and the through holes 11b of the casing body 11, and store the head of the anchor bolt 5 in the storage space 3 inside the storage casing 10. Then, attach the pressure-bearing member 6 to the outer periphery of the head of the anchor bolt 5, and tighten the pressure-bearing member 6 with the nut 7 to fix the wall railing 2 to the floor slab 1. After that, the construction is completed by bolt-tightening and attaching the lid 12 to the casing body 11 of the storage casing 10.

[0028] This storage casing 10 has the above-described configuration and includes a casing body 11 that is fitted into the storage space 3 of the wall railing 2 and a lid 12 that opens and closes the opening 11a on its front surface. Therefore, it is possible to eliminate the filling operation of mortar or the like into the storage space 3 that has been conventionally performed.

[0029] Therefore, the wall railing 2 using this storage casing 10 can proceed with the work without being affected by a shortage of workers or the weather during installation, and the construction period can be shortened compared to the conventional method. Also, when inspecting and replacing the anchor bolts 5 after installation, there is no need to remove mortar or the like from the storage space 3, and the work can be easily performed simply by removing the lid 12 of the storage casing 10.

[0030] In addition, the space between the outer periphery of the opening 11a on the front surface of the casing body 11 and the inner surface of the storage space 3 of the wall railing 2, and the space between the peripheral edge of the lid 12 and the flange portion 11c of the casing body 11 are sealed with rubber sponge 14 to prevent rainwater or the like from entering the storage space 3. Even if rainwater or the like enters, the moisture is discharged to the outside through the water-permeable sheet 15 provided on the outer periphery of the bottom surface side of the opening 11a on the front surface of the casing body 11. Therefore, corrosion of the anchor bolts 5, the pressure-bearing members 6, and the nuts 7 can be prevented.

[0031] Here, when using the storage casing of this first embodiment, the construction procedure of the wall railing is, as described above, after attaching the casing body to the wall railing, the wall railing is fixed to the floor slab with anchor bolts and then the lid is attached. However, for example, if the casing body is made shorter so that it is arranged only on the opening side of the anchor bolts in the storage space, after fixing the wall railing to the floor slab, the casing body and the lid can be attached to the wall railing. Alternatively, the casing body can be divided into front and rear parts, and after fixing the wall railing to the floor slab with only the rear part of the casing body attached, the front part and the lid of the casing body can be attached.

[0032] Also, in the first embodiment described above, the peripheral edge of the lid of the storage casing is bolted to the casing body over the entire circumference, but the lid can also be attached to the casing body so as to be swingable.

[0033] FIG. 4 shows a modified example of the storage casing 10 of the first embodiment. In this modified example, with the shaft portion of the anchor bolt 5 passed through the through hole 11b on the bottom surface of the casing body 11, a waterproof layer 16 covering the shaft portion of the anchor bolt 5 and the periphery of the pressure support member 6 is formed on the bottom surface of the casing body 11. The waterproof layer 16 is formed by pouring and solidifying a silicon resin liquefied by a solvent into a region partitioned by a bar-shaped partition 17 with an L-shaped cross section arranged on the bottom surface near the front surface of the casing body 11 and the both side surfaces and the rear surface of the casing body 11. Even when the bottom surface of the storage space 3 is inclined so that the back side is lower than the front side, it is formed into an inclined surface whose upper surface is a horizontal plane or inclined downward toward the front surface of the casing body 11.

[0034] When the wall railing 2 using the storage casing 10 of this modification example is installed inside the curved section of the road, even when the bottom surface of the storage space 3 is inclined so as to be lower on the back side than on the front side, moisture in the storage space 3 is less likely to stay around the anchor bolt 5, and the step between the bottom surface of the casing main body 11 and the waterproof layer 16 (partition 17) serves to prevent moisture from entering around the anchor bolt 5 from the front side. Therefore, wetting of the anchor bolt 5 can be effectively prevented.

[0035] Here, the material for forming the waterproof layer is not limited to the silicone resin as in this modification example, and any material that can be solidified to exhibit waterproof performance may be used. Also, the shape of the partition can be arbitrarily selected, such as a bar shape with an L-shaped cross section as in this modification example, or a square bar shape.

[0036] FIG. 5 shows an installation state of the wall railing 2 using the storage casing 10 of the second embodiment. This second embodiment is based on the examples of FIGS. 1 to 3 of the first embodiment and has a part of the configuration of the casing main body 11 changed. Members having the same functions as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

[0037] As shown in FIGS. 5 and 6, the casing main body 11 of the second embodiment has a notch 11d through which the shaft portion of the anchor bolt 5 can pass and which opens to the back side, instead of the through hole 11b in the bottom surface of the first embodiment, and an opening 11e continuous with the notch 11d in the bottom surface is provided on the back surface. Also, a rear wall 11f that closes a part of the opening 11e on the back surface and the notch 11d in the bottom surface is detachably attached at its peripheral portion by a plurality of bolts 18. When this rear wall 11f is removed, the head of the anchor bolt 5 can pass in and out through the opening 11e on the back surface.

[0038] Therefore, in the wall railing 2 using the storage casing 10 of the second embodiment, even when it becomes necessary to replace the storage casing 10 due to a collision of an automobile or the like, by simply removing the lid 12 and the rear wall 11f of the casing body 11, the casing body 11 can be slid to the front side and removed without interfering with the anchor bolts 5 and the pressure members 6, and the replacement work can be efficiently performed.

[0039] FIG. 7 shows an embodiment of a sealing means for sealing the storage space 3 of the wall railing 2 only with the lid member 20. The lid member 20 of the sealing means of this embodiment is formed larger than the opening of the storage space 3, and a rubber sponge 21 as a water stop member is attached to the back surface of the peripheral edge portion thereof. Then, the peripheral edge portion of this lid member 20 is fitted together with the rubber sponge 21 into a countersunk recess 8 provided on the entire circumference of the opening edge of the storage space 3, and a concrete bolt 22 is screwed into a hole drilled from the front surface of the peripheral edge portion of the lid member 20 to the bottom surface of the recess 8, so that the storage space 3 is sealed with the lid member 20. Therefore, by detaching and attaching the lid member 20 to and from the wall railing 2, the opening of the storage space 3 can be opened and closed.

[0040] Here, similar to the lid 12 of the aforementioned storage casing 10, the lid member 20 is configured such that the head of the concrete bolt 22 fits into a recess formed at the periphery of the hole through which the concrete bolt 22 passes. Thereby, after the lid member 20 is attached, its front surface becomes flush with the front surface of the wall railing 2, and the head of the concrete bolt 22 also does not protrude from the front surface of the wall railing 2.

[0041] Note that in the construction procedure of the wall railing 2 when using this sealing means, after fixing the wall railing 2 to the floor slab 1, the lid member 20 is attached to the wall railing 2.

[0042] And the wall railing 2 using this sealing means also, similar to the one using the aforementioned storage casing 10, does not require filling work such as mortar into the storage space 3, so that the construction period can be shortened during installation, and the inspection and replacement work of the anchor bolts 5 after installation can be easily performed.

[0043] Also, since a rubber sponge 21 provides a water-stopping state between the lid member 20 and the peripheral edge of the opening of the storage space 3, there is little risk of rainwater or the like entering the storage space 3, and corrosion of the anchor bolt 5, the pressure-bearing member 6, and the nut 7 can be prevented.

[0044] Although not shown, a waterproof layer similar to the modified example of the storage casing 10 shown in FIG. 4 described above can also be formed on the bottom surface of the storage space 3 of this wall railing 2 to prevent the anchor bolt 5 from getting wet.

[0045] The embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is shown not by the above description but by the scope of the claims, and it is intended that all modifications within the meaning and scope equivalent to the scope of the claims are included.

[0046] For example, when using the storage casing of the embodiment, the lid may be attached not to the flange portion of the casing body but to the opening edge of the storage space of the wall railing, similar to the lid member of the sealing means of the embodiment.

[0047] Also, the fastening fixture for installation is not limited to the anchor bolt as in each embodiment, and any fixture that fixes the wall railing to the floor slab may be used, and the rubber sponge of each embodiment can be replaced with other water-stopping members.

Explanation of Reference Numerals

[0048] 1 Floor slab 2 Wall railing 3 Storage space for fastening fixture for installation 4 Bolt hole 5 Anchor bolt (fastening fixture for installation) 6 Pressure-bearing member 7 Nut 10 Storage casing for fastening fixture for installation 11 Casing body 11a Opening 11b Through hole 11c Flange portion 11d Notch 11e opening 11f rear wall 12 lid 14, 21 rubber sponge (water stop member) 15 water-permeable sheet 16 waterproof layer 17 partition 20 lid member

Claims

1. It is fitted into a fastening tool storage space that opens on the front surface of the wall railing and houses the head of the fastening tool for installing the wall railing. It has an opening on the front surface and a through hole or notch on the bottom surface through which the shaft portion of the fastening tool can pass, and includes a casing body and a lid for opening and closing the opening on the front surface of the casing body. A water stop member for sealing water between the outer periphery of the opening on the front surface of the casing body and the inner surface of the fastening tool storage space of the wall railing is provided. A water-permeable sheet is provided on the outer periphery of the bottom surface side of the opening on the front surface of the casing body and is sandwiched between the lower surface of the water stop member and the bottom surface of the fastening tool storage space. A fastening tool storage casing for a wall railing is characterized by this.

2. The lid is detachably attached to a flange portion provided at the periphery of the opening on the front surface of the casing body. The fastening tool storage casing for a wall railing according to Claim 1 is characterized by this.

3. The water stop member protrudes forward from the opening on the front surface of the casing body and seals water between the casing body and the lid. The fastening tool storage casing for a wall railing according to Claim 1 is characterized by this.

4. It is fitted into a fastening tool storage space that opens on the front surface of the wall railing and houses the head of the fastening tool for installing the wall railing. It has an opening on the front surface and a through hole or notch on the bottom surface through which the shaft portion of the fastening tool can pass, and includes a casing body and a lid for opening and closing the opening on the front surface of the casing body. The casing body has a notch on its bottom surface through which the shaft portion of the fastening tool can pass and opens on the rear surface side. An opening continuous with the notch on the bottom surface is provided on the rear surface, and a rear wall for closing the opening on the rear surface is detachably attached. By removing the rear wall, the head of the fastening tool can pass in and out through the opening on the rear surface. A fastening tool storage casing for a wall railing is characterized by this.

5. It is fitted into a fastening tool storage space that opens on the front surface of the wall railing and houses the head of the fastening tool for installing the wall railing. It has an opening on the front surface and a through hole or notch on the bottom surface through which the shaft portion of the fastening tool can pass, and includes a casing body and a lid for opening and closing the opening on the front surface of the casing body. A fastening tool storage casing for a wall railing, characterized in that a waterproof layer covering at least the periphery of the shaft portion of the installation fastening tool is formed of resin on the bottom surface of the casing body with the shaft portion of the installation fastening tool passed through the through hole or notch on the bottom surface of the casing body, and the upper surface of the waterproof layer is a horizontal surface or an inclined surface inclined downward toward the front surface of the casing body.

6. A sealing means for sealing a storage space for installation fastening tools that opens on the front surface of a wall railing and houses the heads of the installation fastening tools for the wall railing. A lid member for opening and closing the opening of the storage space for installation fastening tools is attached to the wall railing, and a water-stopping state is maintained between the lid member and the peripheral edge of the opening of the storage space for installation fastening tools. A sealing means for a storage space for installation fastening tools of a wall railing, characterized in that a waterproof layer covering at least the periphery of the shaft portion of the installation fastening tool is formed of resin on the bottom surface of the storage space for installation fastening tools with the shaft portion of the installation fastening tool passed through the bottom surface of the storage space for installation fastening tools, and the upper surface of the waterproof layer is a horizontal surface or an inclined surface inclined downward toward the front surface of the storage space for installation fastening tools.

7. The sealing means for a storage space for installation fastening tools of a wall railing according to claim 6, characterized in that the lid member is detachable from the wall railing.

Images