JP2601294Y2 - Single-roofed metal shingle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-roof metal shingle.

[0002]

2. Description of the Related Art When a metal roofing plate is laid on a roof by a single-story roofing method, generally, right and left goby (vertical goby) and upper and lower goby (upper goby, upper gore,
The roof portions of the rectangular roof shingles having the lower goby are connected to each other in a straight line in the left-right direction from the top of the eaves by goby bonding, and are sequentially roofed upward (toward the ridge).

[0003]

By the way, when bending the goby portion of the metal roofing plate, first, the vertical gob portion of the rectangular plate is bent, and then the upper and lower gob portions are bent. ,
In the bent portion, it is necessary to provide a clearance slightly larger than the thickness of the roof plate itself without completely contacting the opposing surfaces of the plate material in order to fit the goby of the other party. Moreover, on the left and right sides of the upper and lower goby, the bent portion of the vertical goby has a quadruple structure in which one left and right side is located inside and the other side is located outside, requiring clearance between each facing surface of the plate material As shown in FIG. 5, due to the curvature, the bent front edges of the upper goby and the lower goby are not flush with each other, and the bent front edge of the vertical gob positioned inward is inevitably forward in the bending direction. And a knife-shaped protrusion a is formed at this portion.

When handling the shingle (during processing, transportation, construction, etc.), the hand may inadvertently hit the protruding portion a and cause unexpected injury. The protrusion a causes damage to the roof shingle adjacent in the vertical direction due to thermal expansion. That is, a metal roofing sheet cannot escape expansion and contraction due to temperature change (copper has a thermal expansion coefficient of 17.7 × 10 −60 C and rises 70 degrees Celsius, and the copper sheet roofing sheet extends about 1.24 mm). In order to prevent the occurrence of shingling and waving of the roof plate due to the roof plate, the roof plate is generally attached to the field board through a hook-shaped fitting called a suspender fitted into the upper gobble so as to be movable left and right, and adjacent to The roof shingles are also goby-coupled to allow a certain amount of lateral sliding. For this reason,
Each time the roof shingle expands and contracts due to thermal expansion (the roof shingle temperature reaches around 80 degrees Celsius during summer sunshine), the knife-like protrusion a is formed on the lower goby portion and the lower side of the roof shingle adjacent to the upper side. Repeated rubbing action on the goby-folded part on the adjacent roof plate may cause scratching or friction cracking of the goby-folded part over time, and once the goby-folded part is damaged, There is a problem that rainwater invades and the end of the rain is spoiled.

[0005] By cutting off the protruding portion a at the time of construction, such inconvenience is solved, but the protruding portion a of each roof plate is eliminated.
It is troublesome to work while cutting off each piece with a tool, and the workability is unnecessarily reduced. Therefore, the protruding part a is hidden after the roofing, and the appearance is not changed. In actual work, the protruding portion a is often left up while being left unattended.

[0006]

The single-roof metal roofing slab according to the present invention is based on the above-described actual condition, and an upper gob and a lower gob are placed above and below a rectangular metal plate. In a single-roofed metal roof shingle formed by bending and forming a vertical gob on both the left and right sides while being provided on the opposite side, either the left or right of the metal plate body in the state where the roof shingle is deployed One of the upper and lower sides of one side is cut out in a large angle, and the other is cut out in a taper shape of a small angle, and the upper and lower sides of the other side are aligned with the respective cutout angles of the one side on the left and right diagonal lines of the plate body. Each of the cutouts is tapered, and a narrow portion is formed on each of the left and right sides of the plate body such that the vertical width is gradually reduced from the side closer to the center in the left-right width direction to the side edge, and a vertical goby is provided in the middle of the narrow portion. The gist is that the bending center is located.

[0007]

When the roof plate is deployed, one of the left and right sides of the left and right sides of the metal plate is cut out at a large angle and the other is tapered at a small angle. On the left and right diagonal of the body, cut out in a tapered shape so that the notch angle on each side matches the notch angle on each side, and the upper and lower widths sequentially from the center on the left and right sides on the left and right sides from the center toward the side edge in the left and right width direction As the narrow portion is formed to be narrow, and the bending center of the vertical goby is located in the middle of the narrow portion, the vertical goby of the vertical goby and the vertical goby of the left and right goose are bent. Even after that, the projecting portion a unlike the conventional case does not occur. Therefore, after the roofing, even if the roof plate expands and contracts due to a temperature change, it is difficult for the projecting portion to damage the goby folded portion of the roof plate on the other side. Absent. Therefore, the inconvenience of damaging the rain with time is eliminated.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described with reference to an embodiment shown in the drawings. Numeral 1 is a square metal plate made of a copper plate or the like. This plate 1 is provided with upper and lower goby 2 bent vertically on opposite sides, and with vertical gouges 4 on both left and right sides. 5 is bent to form a single-roof metal roofing plate A. 2a is the folding center of upper goby 2, 3
a is the bending center of the lower goby 3.

By the way, when the roof plate A is deployed, the left and right sides of the metal plate 1 are notched in the upper and lower sides in a tapered shape, respectively. The narrow portions 6 and 7 whose upper and lower widths gradually decrease from the side to the side edge are formed.

In the present embodiment, the upper and lower sides of the left and right sides of the metal plate 1 are cut asymmetrically, and the two wings are formed to have a trapezoidal shape with the base D as the line connecting the starting points of the upper and lower cuts in plan view. It is. That is, a notch angle of the upper and lower one to a large angle theta, and the other notch angle small angle θ ₁ (θ ≒
2θ ₁ ), the notch angle is not the same angle on the left and right, but on one side on the left and right (vertical
5 is set to the large angle θ, and the other side (similar to the bent portions of the vertical gooses 4 and 5 to the outside) is set to the small angle θ ₁ . In other words, the notch angles match on the left and right diagonal lines of the plate 1 (see FIG. 1).
The notch angle is such that the bent end edges of the vertical goby 4 and 5 portions are substantially flush with the bent end edges of the upper goby 2 and the lower goby 3 in a state where the upper goby 2 and the lower goby 3 are bent by about 30 degrees. The angle is set appropriately (for example, the large angle θ is about 6 degrees and the small angle θ ₁ is about 3 degrees) so as to be inside the bent leading edge of the upper goby 2 and the lower goby 3.

By the way, the bending centers 4a,
5a is configured to be located in the middle of the narrow portions 6 and 7. In this embodiment, the bending centers 4 of the vertical goby 4 and 5 are used.
a, 5a are provided slightly outward from the center of the notch width w.

FIG. 1 shows an example of a manufacturing process of a shingle according to the present invention. That is, after a long copper plate or the like having a predetermined width of the roof plate (width of the roof plate in the unfolded state) is provided with a wedge-shaped notch b for each of the vertical widths of the roof plate in the unfolded state, the vertical goby 4 , 5 are bent in the opposite directions, and then the roof shingle is cut off from the center of the notch b. Then, after the roof shingles separated as described above are joined to each other at a plurality of vertical goby portions, the upper goby 2 portion and the lower goby 3 portion are bent approximately 30 degrees in the reverse direction.

[0013]

[Effect of the Invention] As described above, in the present invention, an upper gob and a lower gob are provided on the upper and lower sides of a rectangular metal plate by bending the front and back opposite sides, and a vertical gob is formed on both left and right sides. In a single-roofed metal roofing sheet, in a state where the roofing sheet is expanded, one of the left and right sides of the metal plate body is cut out in a large angle, and the other is cut out in a tapered shape of a small angle, The upper and lower sides of the other side are notched in a tapered shape so that the notch angles of the respective sides coincide with the respective notches on the left and right diagonal lines of the plate body. As the width of the vertical goby is narrowed down and the vertical center of the vertical goby and the left and right vertical goby are folded in the middle of the narrow portion. Even after the bend is formed, the goby folds do not have the conventional protrusions. Therefore, when handling the shingle, such as during transportation or construction, there is no danger of inadvertent injury due to carelessly hitting the protruding part, not only improving safety, but also after roofing Even if the roof shingle expands and contracts due to temperature changes, it is possible to eliminate the likeness of the conventional roof shingle from damaging the goby-folded part of the other roof shingle or causing friction cracking. The inconvenience of impairing rain can be eliminated.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a manufacturing process of a roof slab.

FIG. 2 is a plan view of an upper goby portion of a roof plate.

FIG. 3 is an enlarged perspective view of a portion M in FIG. 6, which is a perspective view of a protruding portion in a conventional left and right shingle joint portion.

FIG. 4 is a plan view showing left and right cutouts of a plurality of connected roof plates.

FIG. 5 is a plan view showing a protruding portion of a conventional shingle.

FIG. 6 is a plan view of a conventional roof panel in which a plurality of sheets are connected.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal plate 2 Upper goby 3 Lower goby 4 Vertical goby 5 Vertical goby 6 Narrow part 7 Narrow part 4a Center of bending of vertical goby 5a Center of bending of vertical goby A Roofing board a Projection b Notch

Claims (1)

(57) [Scope of request for utility model registration] 1. A single-roofed metal roofing plate comprising an upper gob and a lower gob provided on the upper and lower sides of a rectangular metal plate and bent vertically on both sides. In the state in which the roof plate is deployed, one of the upper and lower sides of one of the left and right sides of the metal plate is cut out in a large angle, and the other is cut out in a small angle taper, and the upper and lower sides of the metal plate are On the left and right diagonal lines, cutouts are tapered so that the cutout angles on one side coincide with the cutout angles on the one side, and the upper and lower widths are gradually narrowed from left to right on the left and right sides of the plate from the center toward the side edge. A single-roofed metal roofing plate, wherein a narrow portion is formed and a bent center of a vertical goby is located in the middle of the narrow portion.