JP2021139231A - Roof plate mounting metal fitting - Google Patents

Abstract

To obtain a strong roof structure which suppresses deviated deformation in a part where a hanger is fixed when a negative pressure acts thereon.SOLUTION: A roof plate mounting metal fitting 11 has a sandwiching metal fitting 31 fixed onto a substrate material 12 while sandwiching the substrate material 12, and supports a roof plate through the sandwiching metal fitting 31. The sandwiching metal fitting 31 is constituted by a pair of sandwiching metal fitting carriers 32 and 33 facing each other in a width direction of the substrate material 12, and a fastening tool 61 for fastening the sandwiching metal fitting carries 32 and 33 in the width direction of the substrate material 12. Hanger bolts 34 for fixing one same hanger 14 are provided on upper ends of each of the pair of sandwiching metal fitting carries 32 and 33 so as to be erected upward.SELECTED DRAWING: Figure 1

Description

The present invention relates to a roof plate mounting bracket for fixing a roof plate on a base material, and more particularly to a roof plate mounting bracket that can be fixed without welding.

In the roof plate mounting bracket for fixing the roof plate by tightening or the like, the hanger is fixed to the upper end as a locking member for locking the roof plate. Until now, the hanger has been fixed with a single bolt. The same was true for the roof plate mounting bracket that can be fixed without welding (see Patent Document 1 below).

However, when a negative pressure acts on the roof and the hanger is pulled upward and deformed, and the upper end of the roof plate mounting bracket that fixes the hanger is also deformed, the deformation is significant. The roof plate is easily unlocked.

The following Patent Document 2 discloses a metal fitting in which a member corresponding to a hanger is fixed at two places, but this is merely that there are two fixing places.

Japanese Patent No. 6383124 Jikkenhei 4-82224 Gazette

A main object of the present invention is to make it possible to suppress unbalanced deformation of the hanger fixing portion at the time of negative pressure action.

The means for that purpose is a roof plate mounting bracket that includes a holding metal fitting that sandwiches the base material and is fixed on the base material and supports the roof plate via the holding metal fitting, and the holding metal fitting is the base material. A pair of holding metal fitting carriers facing each other in the width direction of the lumber and a fastener for tightening the holding metal fitting carriers to each other in the width direction of the base material are provided, and the same one is provided at the upper end of each of the pair of holding metal fitting carriers. It is a roof plate mounting bracket in which a hanger bolt for fixing the hanger is erected upward.

In this configuration, when a negative pressure acts on the roof, the hanger bolts erected on the pair of holding metal fitting carriers are pulled evenly upward via the hanger. A force in the direction of sandwiching the base material acts on each of the pulling metal fitting carriers.

According to the present invention, it is possible to suppress unbalanced deformation of the hanger fixing portion at the time of negative pressure action, and it is possible to utilize the force generated by pulling to fix the base material. As a result, the locked state of the roof plate can be maintained, and the fixing of the roof plate mounting bracket itself can be strengthened.

A perspective view of the fixed state of the roof plate mounting bracket. Front view of the roof structure. An exploded perspective view of the roof plate mounting bracket. Front view center sectional view of the holding metal fitting carrier. A side view showing how to attach to the base material. The side view which shows the working state.

An embodiment for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 shows a state in which the roof plate mounting bracket 11 (hereinafter referred to as “mounting bracket”) is fixed on the base material 12. The mounting bracket 11 includes a holding metal fitting 31 that sandwiches the base material 12 and is fixed on the base material 12, and supports the roof plate 13 as shown in FIG. 2 via the holding metal fitting 31 to support the roof. It constitutes the structure.

H steel is used as the base material 12, and the mounting bracket 11 is fixed by tightening both end portions 12b of the flange 12a of the H steel in the width direction in the width direction of the flange 12a.

Further, a hanger 14 and an auxiliary metal fitting 15 as locking metal fittings for mounting the roof plate 13 are attached to the upper portion of the mounting metal fitting 11, and the roof plate 13 is fastened to the locking edge 14a at the upper end of the hanger 14. Is fixed.

In FIG. 2, an example in which the locking edge 14a of the hanger 14 is a round seaming is shown, but in addition to this, a locking edge 14a having another shape such as a square hemming and seaming may be used.

The hanger 14 has a vertically extending vertical portion 14b having a locking edge 14a at the upper end and a horizontal portion 14c extending horizontally from the lower end of the vertical portion 14b, and the vertical portion 14b and the horizontal portion 14c are mounting brackets. It is attached in a state of surface contact with 11.

The auxiliary metal fitting 15 has a fixing plate portion 15a fixed on the horizontal portion 14c of the hanger 14 and a receiving portion extending upward from both ends of the fixing plate portion 15a in the direction corresponding to the slope direction of the roof to receive the roof plate 13. It has 15b.

As described above, the mounting bracket 11 has a structure in which the hanger 14 is attached to the holding bracket 31. That is, the roof plate 13 is directly supported via the holding metal fitting 31.

Specifically, as shown in the exploded perspective view of FIG. 3, the holding metal fitting 31 is composed of a pair of holding metal fitting carriers 32, 33 facing each other in the width direction of the base material 12, and the holding metal fitting carriers 32, 33. A fastener 61 for tightening each other in the width direction of the base material 12 is provided.

The pair of holding metal fitting carriers 32 and 33 are both composed of one metal plate, and as shown in FIG. 1, the holding metal fitting 31 holds the base material 12 with the holding metal fitting carriers 32 and 33 back to back. In the fixing mode, the base material 12 has a line-symmetrical shape when viewed from the longitudinal direction. That is, the holding metal fitting carriers 32 and 33 have a shape that distinguishes left and right, but have the same configuration.

The sandwiching metal fitting carriers 32 and 33 are manufactured by bending or notching a metal plate having a predetermined width by press working. Further, the fastener 61 is composed of a bolt 62 that penetrates a part of the holding metal fitting carriers 32 and 33 and a nut 63 that is screwed into the bolt 62.

At the upper ends of each of the pair of holding metal fitting carriers 32 and 33, a hanger bolt 34 for fixing the same hanger 14 is erected upward. Specifically, the holding metal fitting carriers 32 and 33 have a vertical piece 35 on a flat plate extending in the vertical direction, and the upper end portion of the vertical piece 35 has an upper receiving portion 36 for receiving the roof plate 13 and an upper receiving portion 36. A lower receiving portion 37 is formed which is located below the hanger 14 and receives the hanger 14.

The upper receiving portion 36 and the lower receiving portion 37 are formed one by one, and both extend horizontally. Further, the upper receiving portion 36 and the lower receiving portion 37 are arranged in the width direction of the vertical piece 35 corresponding to the longitudinal direction of the base material 12. The holding metal fitting carrier 32 located on the lower side of the slope of the roof in the direction orthogonal to the longitudinal direction of the base material 12 has an upper receiving portion 36 formed on the left side toward the upper side of the slope of the roof. On the other hand, the holding metal fitting carrier 33 located on the upper side of the slope of the roof in the direction orthogonal to the longitudinal direction of the base material 12 has an upper receiving portion 36 formed on the right side toward the lower side of the slope of the roof. FIG. 2 shows a state in which the roof is viewed upward on the slope.

The hanger bolt 34 is erected at the center of the lower receiving portion 37. The tip position of the hanger bolt 34 is lower than the upper surface position of the upper receiving portion 36.

The vertical piece 35 having the upper receiving portion 36 and the lower receiving portion 37 is a portion to be tightened by the above-mentioned fastener 61. The vertical piece 35 is formed to an appropriate length in consideration of the height of the mounting bracket 11, and a square hole 35a for inserting the bolt 62 is formed at an intermediate position in the width direction as shown in FIGS. 3 and 4. Has been done. FIG. 4 is a front view center vertical cross-sectional view of the holding metal fitting carriers 32 and 33, and shows the side having the upper receiving portion 36.

Under the vertical piece 35, a slanted leg portion 41 and a hanging leg portion 42 are arranged side by side as a structure for fixing to the base material 12. The slanted leg portion 41 and the hanging leg portion 42 are integrated and are arranged in a direction corresponding to the longitudinal direction of the base material 12. Specifically, it has a frame-shaped oblique leg portion 41, and the hanging leg portion 42 is formed between them. In other words, the slanted leg portion 41 is formed by cutting and raising, so that the slanted leg portion 41 and the hanging leg portion 42 are arranged side by side.

The oblique leg portion 41 has an inclined piece 43, a grounding piece 44, and a locking portion 45.

The inclined piece 43 extends obliquely from the lower end of the vertical piece 35 toward the outer lower side in the width direction of the base material 12. The inclined piece 43 is formed by bending a portion below the vertical piece 35, and the length and the inclination angle are such that the lower end of the inclined piece 43 is within the width of the base material 12 when the inclined piece 43 supports the load and is fixed to the base material 12. It is set appropriately in consideration of fitting in. Two inclined pieces 43 are formed at intervals on both sides of the holding metal fitting carriers 32 and 33 in the width direction.

The grounding piece 44 extends in the horizontal direction from the lower end of the inclined piece 43. As shown in FIGS. 1 and 5, the grounding piece 44 is in contact with the upper surface of both end portions 12b of the base material 12, and is formed to a size necessary to support the load. As shown in FIG. 4, the lower end of the inclined piece 43, which is divided into two pieces, is integrated with the grounding piece 44.

The locking portion 45 bends downward from the tip of the grounding piece 44 and locks to the end portion 12b in the width direction of the base material 12. The locking portion 45 is formed so that the tip of the grounding piece 44 in contact with the upper surface of the base material 12 is bent downward so that the grounding piece 44 and the locking portion 45 form an L-shape in a side view. That is, the cross-sectional shape in which the grounding piece 44 and the locking portion 45 are united forms a U-shape that fits the upper surface, the lower surface, and the end surface of both end portions 12b of the base material 12.

The grounding piece 44 and the locking portion 45 are provided with a reinforcing metal fitting 46 for covering them. The reinforcing metal fitting 46 is composed of a metal plate having the same width as the grounding piece 44 and the locking portion 45, and is in contact with the grounding piece 44 so as to wrap the surface of the locking portion 45. It has 46c. Further, at the tip of the upper surface plate portion 46a of the reinforcing metal fitting 46, a contact support piece 46d that comes into contact with the lower end portion of the inclined piece 43 is formed.

As shown in FIG. 4, the reinforcing metal fitting 46 is fixed to the grounding piece 44 or the like by caulking the top plate portion 46a and the grounding piece 44 in a state of being overlapped with each other to form the caulking portion 47. In addition, appropriate means such as rivets and welding may be used.

The hanging leg portion 42 has a hanging piece 48 extending directly below from the lower end of the widthwise intermediate portion of the vertical piece 35, and a grounding piece 49 extending horizontally from the lower end of the hanging piece 48 and in contact with the upper surface of the base material 12. There is. The hanging piece 48 and the grounding piece 49 are formed to have the same width, and a reinforcing rib 51 projecting on the surface or the upper surface is formed in a bulge at the intermediate portion in the width direction. The upper end of the reinforcing rib 51 extends upward as long as it does not interfere with the fastening by the fastener 61.

The structure for reinforcement is also formed on both end edges of the holding metal fitting carriers 32 and 33 in the width direction. That is, reinforcing ribs 52 by bending are formed on both end edges of the holding metal fitting carriers 32 and 33 in the width direction. The reinforcing rib 52 is formed to have a constant width over the entire vertical direction from the ground contact piece 44 to the upper receiving portion 36 and the lower receiving portion 37. The reinforcing rib 52 faces upward on the grounding piece 44, downwards on the upper receiving portion 36 and the lower receiving portion 37, and faces outward on the vertical piece 35 and the inclined piece 43. Regarding the lower receiving portion 37, a reinforcing rib 53 extending downward is also formed on the side adjacent to the upper receiving portion 36 by bending the edge.

The horizontal portion 14c of the hanger 14 and the fixing plate portion 15a of the auxiliary fitting 15 provided for the mounting bracket 11 configured as described above are shown in FIG. 3, respectively, corresponding to the hanger bolt 34 of the mounting bracket 11. As described above, it has two through holes 14d and 15c. The through holes 14d and 15c are formed with elongated holes so that the pair of holding metal fitting carriers 32 and 33 can be separated even when the hanger bolt 34 is inserted.

Such a mounting bracket 11 engages with the grounding piece 44 while keeping the pair of holding bracket carriers 32 and 33 integrally with the fastener 61 and separating them from each other as much as necessary as shown in FIG. The stop portion 45 is fitted to both end portions 12b of the base material 12.

At this time, even if the hanger 14 is a round seaming type, the nut 65 screwed into the hanger bolt 34 for fixing the hanger 14 is stopped so as to be loosened. This is so that the sandwiching metal fitting carriers 32 and 33 can be separated from each other.

When the grounding piece 44 and the locking portion 45 are fitted to both end portions 12b of the base material 12 and then the fastener 61 is tightened, the fixed state as shown in FIG. 6 is obtained.

In the roof structure provided with the mounting bracket 11, when a load from above acts, the oblique leg portion 41 and the hanging leg portion 42 of the holding bracket 31 support the load in cooperation with the fastener 61. Since the load can be dispersed and it is supported over a wide area, it can be firmly supported.

On the other hand, when a negative pressure acts, the hanger bolts 34 erected on the pair of holding metal fitting carriers 32 and 33, respectively, are evenly pulled upward via the hanger 14 as shown by the arrow A in FIG. Therefore, it is possible to prevent an unbalanced load from being applied to the hanging bolt 34 of the holding metal fitting 31 and the lower receiving portion 37. Therefore, it is possible to prevent the holding metal fitting 31 and the hanger 14 from being significantly deformed, maintain the locked state of the roof plate 13, and reduce the possibility that the roof plate 13 will come off.

Further, as shown by the arrow B in FIG. 6, a force in the direction of sandwiching the base material 12 acts on the holding metal fitting carriers 32 and 33 that have been pulled, respectively. Therefore, a strong fixed state to the base material 12 can be maintained.

The upper ends of the holding metal fitting carriers 32 and 33 have an upper receiving portion 36 for receiving the roof plate 13 and a lower receiving portion 37 for receiving the hanger 14, and the hanger 14 is the upper surface of the lower receiving portion 37 and the upper receiving portion 36. It is fixed in contact with the side surface of the roof. Therefore, from the aspect of the fixing mode of the hanger 14, the structure can be configured to exhibit rigidity in both positive pressure and negative pressure.

Moreover, since the holding metal fitting 31 has a line-symmetrical shape when viewed from the longitudinal direction of the base material 12, the possibility that an unbalanced load is applied can be eliminated as much as possible.

Moreover, since the pair of holding metal fitting carriers 32 and 33 have the same structure although the left and right sides are distinguished, they can be manufactured with one type of mold.

Further, in the holding metal fitting carriers 32 and 33, the oblique leg portion 41 and the hanging leg portion 42 are arranged side by side, and these are arranged and integrally formed in the width direction of the holding metal fitting carriers 32 and 33. Therefore, the structures of the holding metal fitting carriers 32 and 33 can be simplified, which is advantageous in terms of the number of parts and the like as compared with the case where the base materials 12 are arranged side by side in the width direction.

11 ... Roof plate mounting bracket 12 ... Base material 13 ... Roof plate 14 ... Suspension 31 ... Holding bracket 32, 33 ... Holding bracket Carrier 34 ... Hanging bolt 35 ... Vertical piece 36 ... Upper receiving part 37 ... Lower receiving part 41 ... Oblique leg 42 ... Hanging leg 43 ... Inclined piece 44 ... Grounding piece 45 ... Locking part 61 ... Fastener

Claims (5)

A roof plate mounting bracket that is provided with a holding metal fitting that sandwiches the base material and is fixed on the base material, and supports the roof plate via the holding metal fitting.
The sandwiching metal fitting includes a pair of sandwiching metal fitting carriers facing each other in the width direction of the base material, and a fastener for tightening the sandwiching metal fitting carriers to each other in the width direction of the base material.
A roof plate mounting bracket in which a hanging bolt for fixing one of the same hanging brackets is erected upward at the upper end of each of the pair of holding bracket carriers. For each of the pair of holding metal fitting carriers, an upper receiving portion for receiving the roof plate and a lower receiving portion for receiving the suspender located below the upper receiving portion are provided.
The roof plate mounting bracket according to claim 1, wherein the hanger bolt is erected on the lower receiving portion. The roof plate mounting bracket according to claim 1 or 2, wherein the sandwiching bracket has a line-symmetrical shape when viewed from the longitudinal direction of the base material. On the holding metal fitting carrier, an inclined piece extending diagonally from the lower end of a vertical piece extending in the vertical direction toward the outer lower side in the width direction of the base material, a grounding piece extending horizontally from the lower end of the inclined piece, and the grounding piece. An oblique leg portion having a locking portion that bends downward from the tip and locks to the end portion in the width direction of the base material, and
Claims 1 to 3 in which a hanging piece extending directly below the lower end of the vertical piece and a hanging leg portion having a grounding piece extending horizontally from the lower end of the hanging piece and in contact with the upper surface of the base material are arranged side by side. The roof plate mounting bracket according to any one of the above. A roof structure provided with the roof plate mounting bracket according to any one of claims 1 to 4.

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