JP2703644B2 - Connection method of metal plate - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for connecting the ends of a pair of metal plates in a waterproof manner.

[Prior Art] Conventionally, when connecting metal plates in a waterproof manner, they are generally joined by joining means referred to as joint joining.

[Problem to be Solved by the Invention] However, in the case of the joint, there is a problem that the reliability of waterproofness is low because the folded portion is simply hooked and crushed.

The present invention has been made in view of the above description, and an object of the present invention is to provide a method of connecting a metal plate that can be connected securely and waterproofly and that can be easily and reliably connected.

[Means for Solving the Problems] In order to achieve the above object, a method for connecting a metal plate according to the present invention comprises:
The rising edges 2 provided at the ends of the pair of metal plates 1 are in contact with each other, and the bent portions 3 bent in an arc shape at the upper end of the rising edge 2 are opposed to each other so as to be separated toward the upper end, and the cross section is substantially a part. The notched long annular band 4 is fitted on the pair of rising edges 3, and the concave concave portion 5 at the center of the upper part of the band 4 is positioned on the pair of bent portions 3. It is characterized in that the band 4 is crushed from above by the pressing body 7 while the spread to both sides is stopped by the deformation preventing guide 6.

[Operation] The rising edge 2 of the pair of metal plates 1 is brought into contact with the rising edge 2 so as to cover the band 4 with the deformation preventing guide 6. Can connect. In addition, the band 4 and the rising edge 2 can be crushed and connected so as to be in close contact with a plurality of layers, and can be connected in a waterproof manner. In addition, the rising edge 2 and the band 4 can be surely connected at the bent portion 3 and the concave portion 5 so that the rising edge 2 and the band 4 are deformed to a predetermined state and always in the same state.

[Example] A rising edge 2 is vertically raised at an end of a metal plate 1, and a bent portion 3 is formed at an upper end of the rising edge 2 so as to be bent in an arc shape. The band 4 is formed in a substantially partially cut-out long annular cross-sectional shape in which a part of the lower part is cut out. At the center of the upper part of the band 4 is provided a concave 5 which is concave in an arc shape. The metal mold is the lower platen 8
And a deformation prevention guide 6 on both sides and a vertically movable pressurizing body 7 on the upper side. The connection of the pair of metal plates 1 is performed as follows. As shown in FIG. 1, a pair of metal plates 1 is placed on a surface plate 8 so that the rising edges 2 of the pair of metal plates 1 are overlapped with each other, and the bent portions 3 are opposed to each other so as to be separated from the upper end. And a concave band 5 is positioned on the pair of bent portions 3 with a deformation preventing guide 6 placed on the metal plate 1 on both sides of the platen 8 so that the band 4 does not spread. The deformation preventing guide 6 is brought into contact with both sides of the band 4, and the pressing body 7 is lowered and crushed as shown in FIG. In this state, the lower surface 4a of the female band 4 overlaps the metal plate 1, the rising edge 2 falls horizontally and overlaps the lower surface 4b, and the upper surface 4b of the female band 4 overlaps the rising edge 2. Since the concave portion 5 is located on the bent portion 3 when the band 4 is crushed, the rising edge 2 falls down smoothly and is crushed in a predetermined state. In the state shown in FIG. 1, when a sealing material is loaded in the space S between the concave portion 5 and the bent portion 3, the sealing material is sealed between the layers when it is assembled as shown in FIG. It will improve.

[Effects of the Invention] Since the present invention is configured as described above, the rising edges of the pair of metal plates are brought into contact with each other, the rising edges are covered with a band, and the expansion is regulated by the deformation preventing guide. It can be connected simply by crushing it from the top, making it easy to connect.In addition, it can be connected and crushed so that the female band and rising edge are in close contact with multiple layers and connected in a waterproof manner It is also possible to place the concave part on the bent part separated from the upper end and press and crush it, so the rising edge stop band is deformed to the predetermined state at the bent part and the concave part and always deformed They can be connected reliably so as to be in the same state.

[Brief description of the drawings]

1 and 2 are cross-sectional views illustrating the method of the present invention, wherein 1 is a metal plate, 2 is a rising edge, 3 is a bent portion,
4 fit band, 5 concave part, 6 deformation guide, 7
Is a pressurized body.

Claims (1)

(57) [Claims] 1. A rising section provided at an end of a pair of metal plates is brought into contact with each other, and an arc-shaped bent portion at an upper end of the rising edge is opposed so as to be separated toward an upper end, and has a cross section substantially equal to one. The notched long annular female band is fitted on the pair of rising edges, and the central concave portion of the upper part of the female band is positioned on the pair of bent portions, so that the expansion of the female band on both sides is performed. A method of connecting a metal plate, wherein the band is crushed from above by a pressurizing body while being stopped by a deformation prevention guide.