Walking plate mounting metal fitting and walking plate mounting method

Abstract

To provide a walking plate mounting metal fitting capable of mounting a walking plate on a roof of a corrugated slate using an existing hook bolt.SOLUTION: A fixing metal fitting 30 to be fixed to a hook bolt A projected from a roof of corrugated slate P is provided. A body metal fitting 20 connected to the fixing metal fitting 30 and mounted with a walking plate R overlapped thereon is provided. The fixing metal fitting 30 and the body metal fitting 20 are connected through a connecting metal fitting 10. A pair of locking pieces 11 for locking to the fixing metal fitting 30 are provided on the connecting metal fitting 10. A connecting piece 12 connecting one end of each locking piece 11 to the main body fitting 20 is provided on the connecting fitting 10.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a walking board mounting bracket and a walking board mounting method for attaching a walking board to a slate roof when renovating a corrugated slate roof. [Background technology]

[0002] Old corrugated slate sheets contain asbestos, so special care must be taken when renovating them. Therefore, the indirect fixing method is used as one of the methods for renovating existing corrugated slate sheets.

[0003] With this construction method, the existing hook bolts that secure the corrugated slate to the roof are used to secure new support brackets, a metal base is placed between the support brackets, and the new slate roof is then secured on top of this metal base. This has the advantage of generating almost no asbestos or other dust, and eliminating the need to worry about leaks during construction.

[0004] The applicant has proposed a support bracket for use in this indirect fixing method (Patent Document 1). This support bracket makes it possible to easily install the support bracket and base material even when the existing hook bolts are not exposed, and makes it easy to fix a new slate roof. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6591592 Summary of the Invention [Problem to be solved by the invention]

[0006] However, when repairing a corrugated slate roof using the indirect method, the new corrugated slate must be installed while still resting on the existing slate roof, which increases the risk of someone stepping through the roof or damaging the slate roof during work.

[0007] To prevent such accidents, it was necessary to establish a construction method that did not require standing directly on the slate roof. However, while the conventional support brackets used in the indirect fixing method could be used to attach a new slate roof using the existing hook bolts, there was no established method for attaching a walkway.

[0008] Therefore, the present invention was created to solve the above-mentioned problems, and aims to provide a walkway mounting bracket and a walkway mounting method that allow a walkway to be attached to a corrugated slate roof using existing hook bolts. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the first means of the present invention comprises a fixing bracket 30 that is fixed to a hook bolt A protruding from a corrugated slate P roof, and a main body bracket 20 that is connected to the fixing bracket 30 and has a walking board R attached thereon.

[0010] The second means is that the fixing metal fitting 30 and the main metal fitting 20 are connected via a connecting metal fitting 10 .

[0011] The connecting fitting 10 of the third means comprises a pair of locking pieces 11 for locking to the fixing fitting 30 , and a connecting piece 12 for connecting one end of each locking piece 11 to the main fitting 20 .

[0012] The fixing bracket 30 of the fourth means has a pair of legs 31 erected on both sides of the hook bolt A, and the connecting bracket 10 has a pair of locking pieces 11 inserted inside the opposing legs 31 and a connecting piece 12 connecting one end of each locking piece 11 to the main bracket 20, and is configured so that a locking end 11A formed at the other end of each locking piece 11 is engaged with the leg 31.

[0013] In the fifth means, the pair of locking pieces 11 are extended from the connecting piece so that when inserted inside the opposing leg portions 31, each locking piece 11 biases each other in the opening direction.

[0014] The sixth means is that the main body fitting 20 comprises a connecting piece 21 which is screwed to the connecting fitting 10, and an overlapping piece 22 which is extended from the connecting piece 21 and overlaps the walking board R on top, and the connecting piece 12 of the connecting fitting 10 and the connecting piece 21 of the main body fitting 20 are connected with a connecting bolt 23, thereby connecting the connecting fitting 10 and the main body fitting 20.

[0015] The connecting bolt 23 of the seventh means connects the connecting piece 12 of the connecting fitting 10 and the connecting piece 21 of the main fitting 20 via a coil spring 24 .

[0016] The eighth means is that the overlapping piece 22 is provided with a locking portion 25 for locking the longitudinal end portion of the walking board R.

[0017] The ninth means is that the overlapping piece 22 is provided with a locking projection 26 that locks onto the inside of the bent portion of the walking board R.

[0018] The tenth means is a method for attaching a walking board R to a hook bolt A protruding from a corrugated slate P, and includes the steps of fixing a fixing bracket 30 to the hook bolt A, connecting a main body bracket 20 to the fixing bracket 30, and attaching the walking board R to the main body bracket 20 by stacking it on top of it.

[0019] The eleventh means is a walking board mounting bracket that attaches a walking board R to a fixed member fixed to a hook bolt A protruding from a roof of corrugated slate P, the walking board mounting bracket having a connecting portion that connects to the fixed member and an overlapping portion that overlaps the walking board R. Effect of the Invention

[0020] According to the present invention, a walking board can be attached using the existing hook bolts protruding from a corrugated slate roof, preventing step-through accidents and damage to the corrugated slate roof when a new roof is constructed using an indirect fixing method. [Brief description of the drawings]

[0021] [Figure 1] FIG. 2 is a perspective view showing the mounting bracket of the present invention. [Diagram 2] FIG. 2 is an exploded perspective view showing the mounting bracket of the present invention. [Diagram 3] 1(a) to 1(d) are perspective views showing a procedure for attaching the mounting bracket of the present invention. [Figure 4] FIG. 2 is a perspective view of the main part showing the state in which a walking board is attached to the mounting bracket of the present invention. [Diagram 5] FIG. 2 is a perspective view of the main part showing the state in which a walking board is attached to the mounting bracket of the present invention. [Figure 6] FIG. 4 is a side view showing an example of use of the main body metal fitting of the mounting bracket of the present invention. [Figure 7] FIG. 2 is an exploded perspective view showing a fixing bracket of the mounting bracket of the present invention. [Figure 8] FIG. 4 is a side view showing the use of the fixing bracket of the mounting bracket of the present invention. [Figure 9] FIG. 2 is a cutaway perspective view of a main portion of a corrugated slate roof using the mounting bracket of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The mounting bracket of the present invention is a mounting bracket for attaching a walking board R when repairing a roof made of corrugated slate P containing asbestos (see FIG. 9). This mounting bracket is composed of a connecting bracket 10, a main bracket 20, and a fixing bracket 30. This fixing bracket 30 is a member that is fixed to an existing hook bolt A protruding from the roof, and the connecting bracket 10 and the main bracket 20 are fixed to this fixing bracket 30.

[0023] The connecting fitting 10 has a pair of locking pieces 11 that are inserted inside opposing leg parts 31 of the fixing fitting 30 (see FIG. 8). A locking end part 11A formed on the other end of each locking piece 11 locks onto the leg part 31. Furthermore, the locking pieces 11 are provided with a connecting piece 12 that connects one end of each locking piece 11 to the main fitting 20 (see FIG. 1). This connecting piece 12 has a connecting part 12A that is screwed to the main fitting 20, and an elastic part 12B that is bent from the connecting part 12A and urges the locking pieces 11 in the expanding direction (see FIG. 2).

[0024] The main metal fitting 20 is a member connected to the connecting metal fitting 10 (see FIG. 1), and the walking board R is attached onto the main metal fitting 20 (see FIG. 5). The main metal fitting 20 shown in the figure includes a connecting piece 21 that is screwed to the connecting metal fitting 10, and an overlapping piece 22 that is extended from the connecting piece 21 and overlaps the walking board R (see FIG. 1). The connecting bolt 23 that connects the connecting metal fitting 10 and the connecting piece 21 is attached via a coil spring 24 (see FIG. 2). When the locking piece 11 is inserted inside the leg 31, the connecting bolt 23 is pushed against the elastic force of the coil spring 24 to lock the locking end 11A to the end of the leg 31, and when the pushing of the connecting bolt 23 is stopped in this state, the locking piece 11 is pulled back toward the main metal fitting 20 by the elastic force of the coil spring 24, so that the locking piece 11 and the leg 31 can be temporarily fixed via the locking end 11A. Thereafter, the connecting fitting 10 and the main fitting 20 can be firmly connected by tightening the connecting bolt 23.

[0025] Furthermore, a locking portion 25 is provided on the overlapping piece 22, and the longitudinal end portion (the edge parallel to the longitudinal direction of the walking board R) of the walking board R is locked to the locking portion 25 (see FIG. 4). By locking the walking board R to the locking portion 25 in this manner, the position of the walking board R can be fixed (see FIG. 5). Also, a locking protrusion 26 is provided on the overlapping piece 22 (see FIG. 1). This locking protrusion 26 is a portion that locks to the inside of the bent portion of the walking board R when the walking board R is placed on the overlapping piece 22 (see FIG. 6).

[0026] The fixing bracket 30 is a member that is fixed to the hook bolt A protruding from the roof of the corrugated slate P (see FIG. 7), and has a pair of legs 31 that stand on either side of the hook bolt A (see FIG. 8). In the illustrated example, it has a support plate 32 through which the hook bolt A is inserted, and a push nut 34 that is fixed to the hook bolt A protruding from this support plate 32 (see FIG. 7). A base material Q is fixed between a pair of retaining pieces 33 that extend upward from the support plate 32, and a new corrugated slate P is installed on this base material Q (see FIG. 9).

[0027] The construction method of the present invention includes the steps of fixing the fixing bracket 30 to the hook bolt A, connecting the main bracket 20 to the fixing bracket 30, and mounting the walking board R on top of the main bracket 20.

[0028] In the process of fixing the fixing bracket 30 to the hook bolt A, a push nut 34 is used (see FIG. 7). This push nut 34 is a fixing member that is attached to the support plate 32 in advance. When the hook bolt A is inserted into this push nut 34, the fixing bracket 30 is fixed to the hook bolt A.

[0029] In the process of connecting the connecting fitting 10 to the fixing fitting 30, the main fitting 20, which has already been connected to the connecting fitting 10, is connected so as to be positioned above the roof slope with respect to the hook bolt A (see FIG. 9). In other words, the hook bolt A is used to prevent the walking board R from slipping.

[0030] 3(a) to (d) show the construction procedure for connecting the connecting fitting 10 to the fixing fitting 30. First, the locking piece 11 of the connecting fitting 10 is inserted between the legs 31 of the fixing fitting 30 (see FIG. 3(a)). Next, the connecting bolt 23 is pushed so that the end of the locking piece 11 protrudes from between the legs 31 (see FIG. 3(b)).

[0031] When the end of the locking piece 11 comes out of the leg 31, the locking end 11A formed on the end of the locking piece 11 locks with the end of the leg 31 (see FIG. 3(c)). At this time, the elastic force of the locking piece 11 causes the locking piece 11 to spread out while locking, so when the locking end 11A locks, a "click" sound is heard, making it easy to check the work. Finally, the connecting bolt 23 is tightened to complete the attachment to the fixing bracket 30 (see FIG. 3(d)).

[0032] The step of attaching the walking board R is a step of attaching the walking board R on top of the main metal fitting 20 connected to the connecting metal fitting 10 (see FIG. 4). At this time, the walking board R on the main metal fitting 20 is attached in a direction perpendicular to the longitudinal direction of the waves of the corrugated slate P (see FIG. 9).

[0033] At this time, the longitudinal side edges of the walking board R are fixed in a locked state with the locking portions 25 of the overlapping pieces 22 (see FIG. 5). Furthermore, the uneven portions of the walking board R are locked with the locking projections 26 to prevent the walking board R from shifting sideways (see FIG. 6). Also, since the walking board R is installed below the position where the new corrugated slate P to be installed on the fixing brackets 30 will be disposed, the new corrugated slate P is installed with the walking board R left in place (see FIG. 9).

[0034] Furthermore, the mounting fittings of the present invention are not limited to the examples shown in the drawings. For example, the configurations of the connecting fittings 10, main fittings 20, fixing fittings 30, etc. can be modified as desired, and the design can be freely changed depending on the repair of a roof using corrugated slate, without changing the gist of the present invention.

[0035] In the above embodiment, the locking piece 11 of the connecting fitting 10 is inserted between the leg parts 31 of the fixing fitting 30, but for example, it may be locked from the outside of the leg parts 31. Also, in the above embodiment, the connecting fitting 10 has an elastic part formed by bending from the connecting part 12A, but as long as the locking piece 11 formed continuously from the connecting part 12A can be biased in the expanding direction, the elastic part may not be required. Furthermore, in the above embodiment, the fixing fitting 30 has a holding piece 33 for fixing the base material Q, but it may have another configuration for fixing the base material Q, or the fixing fitting 30 may not fix the base material Q. Furthermore, in the above embodiment, the connecting bolt 23 is attached via the coil spring 24, but the coil spring 24 may not be required. (In the above embodiment, the connecting fitting 10 and the main fitting 20 are configured as separate bodies, but they may be integrated. Also, in the above embodiment, the connecting fitting 10, the main fitting 20, and the fixing fitting 30 are configured as separate bodies, but they may be integrated.)

[0036] The present invention includes a walking board mounting bracket that mounts a walking board R on an existing member fixed to a hook bolt A protruding from a roof of a corrugated slate P. In other words, the present invention includes a walking board mounting bracket that mounts a walking board R on an existing fixed member fixed to a hook bolt A protruding from a roof of a corrugated slate P, and includes a walking board mounting bracket having a connecting portion that connects to the fixed member and an overlapping portion that overlaps the walking board R. The fixing member may be, for example, a member having a pair of legs 31 erected on both sides of the hook bolt A, such as the fixing bracket 30 in the above embodiment, or may be a member having a locking piece 33 that locks the connecting portion of the walking board mounting bracket to the leg portion 31. The overlapping portion may be, for example, a member having a configuration similar to that of the main body bracket 20 in the above embodiment. [Explanation of symbols]

[0037] A Hook bolt P Wave Slate Q Base material R Walking Board 10 Connecting hardware 11 Locking piece 11A Locking end 12 Connecting piece 12A connection part 12B Elastic part 20 Main body fittings 21 Connecting piece 22 Polymer piece 23 Connecting bolt 24 Coil spring 25 Locking part 26 Locking protrusion 27 Connecting nut 30 Fixture 31 Legs 32 Support plate 32A Nut support piece 33 Holding piece 34 Push nut

Claims

1. This walking board mounting bracket is characterized by comprising a fixing bracket that is fixed to a hook bolt protruding from a corrugated slate roof, and a main body bracket that is connected to the fixing bracket and on which a walking board is attached by placing it on top.

2. 2. A walking board mounting bracket according to claim 1, wherein the fixing bracket and the main bracket are connected via a connecting bracket.

3. 3. A walking board mounting bracket according to claim 2, wherein the connecting bracket comprises a pair of locking pieces for locking to the fixed bracket, and a connecting piece for connecting one end of each locking piece to the main bracket.

4. The fixing metal fitting has a pair of legs erected on both sides of the hook bolt, and the connecting metal fitting has a pair of locking pieces inserted into the inner sides of the opposing legs, a connecting piece for connecting one end of each of the locking pieces to the main metal fitting, 3. A walking board mounting bracket according to claim 2, wherein a locking end portion formed at the other end of each locking piece is adapted to be locked onto said leg portion.

5. 5. A walking board mounting bracket as described in claim 4, wherein the pair of locking pieces are extended from the connecting piece so that when inserted into the inner sides of the opposing leg portions, the locking pieces urge each other in an opening direction.

6. The walking board mounting bracket described in claim 3 or 5, wherein the main body metal fitting comprises a connecting piece which is screwed to the connecting metal fitting and an overlapping piece which extends from the connecting piece and overlaps the walking board, and the connecting piece of the connecting metal fitting and the connecting piece of the main body metal fitting are connected with a connecting bolt to connect the connecting metal fitting and the main body metal fitting.

7. 7. A walking board mounting bracket according to claim 6, wherein said connecting bolt connects said connecting piece of said connecting bracket and said connecting piece of said main bracket via a coil spring.

8. 7. A walking board mounting fixture according to claim 6, wherein said overlapping pieces are provided with locking portions for locking longitudinal ends of said walking board.

9. 7. A walking board mounting fitting according to claim 6, wherein said overlapping piece is provided with a locking projection for locking with the inside of the bent portion of said walking board.

10. A method for attaching a walking board to a hook bolt protruding from a corrugated slate, comprising the steps of: fixing a fixing bracket to the hook bolt; connecting a main bracket to the fixing bracket; and attaching the walking board by stacking it on top of the main bracket.

11. A walking board mounting bracket for mounting a walking board to a fixing member fixed to a hook bolt protruding from a corrugated slate roof, A walking board mounting bracket comprising a connecting portion that connects to the fixed member and an overlapping portion for overlapping the walking board thereon.

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