JP2001349157A - Rolling door shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the abrasion resistance of the front and rear faces of a slat. SOLUTION: A rolling door shutter 1 is provided with a shutter plate 3 composed of the plural connected slats 2, guide rails 4 and 4 for guiding both side parts of the shutter plate 3, and a shutter box 6 wherein a winding drum 5 for winding the shutter plate 3 is housed. The slut 2 is constituted by coating the front and rear faces of a steel plate 10 with paint 12 and 13 mixed with fluorine powder 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter, and more particularly to a shutter in which the front and rear surfaces of a slat have improved wear resistance.

[0002]

2. Description of the Related Art As shown in FIG. 3, a shutter is formed by connecting a plurality of slats 2 made of a horizontally long and thin steel plate in an armor shape in a vertical direction (up and down direction). The vehicle includes a guide rail 4 that guides both sides and a shutter box 6 that houses a winding drum 5 that winds the shutter plate 4. The slat 2 is generally coated with a paint on the front and back surfaces of a steel plate for rust prevention and decoration.

[0003]

However, in the shutter, when the shutter plate is wound on the winding drum, as shown in FIG. 4, the slats 2 overlap and come into contact with each other and relatively rub against each other. In addition to the phenomenon, the joint 2a of the slat 2 also rubs when bent. Such a phenomenon is repeated every time the shutter plate 3 is wound up or down. For example, when winding up the slats 2, each slat 2 is rotated in the direction of the arrow with the joint 2a at the point A in FIG. 3 as a fulcrum and wound up on the winding drum 5. As shown in FIG. 4, the front surface or the back surface of the joint 2a and the slat 2 come into contact with each other and rub against each other. In particular, at the beginning of winding, the joint 2
Since the entire weight of the large number of slats 2 hanging below a is applied to a, the slats 2 strongly rub against each other.

[0004] For this reason, there has been a problem that the painted surface on the front and back surfaces of the slats is worn due to friction, and flaws are generated on the front and back surfaces of the slat. This flaw not only deteriorates the appearance of the shutter but also causes rust when it reaches the metal surface of the slat. In addition, a friction noise is generated by the friction.

The present invention has been made in view of the above circumstances, and has as its object to provide a shutter in which the front and rear surfaces of the slat have improved wear resistance.

[0006]

According to the present invention, there is provided a shutter having a shutter plate formed by connecting a plurality of slats, a guide rail for guiding both side portions of the shutter plate, and a winding drum for winding the shutter plate. A shutter provided with a box, wherein the slats are formed by coating a paint containing fluorine powder on the front and back surfaces of a steel plate.

[0007]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective view of a shutter showing an embodiment of the present invention, FIG. 2 is a view schematically showing a cross-sectional structure of a slat of the shutter, and FIG. 3 is a view schematically showing a structure of a winding portion of the shutter. is there.

As shown in FIGS. 1 to 3, a shutter 1 comprises a shutter plate 3 formed by connecting a plurality of horizontally elongated slats 2 in an armor shape in a vertical direction (up and down direction), and both sides of the shutter plate 3. Left and right guide rails 4,
And a shutter box 6 provided at the upper end of both guide rails 4 and 4 and containing a winding drum 5 for winding the shutter plate 3. Curled joints 2a, 2a are formed on the upper edge and the lower edge of the slat 2,
Adjacent slats 2, 2 are rotatably (bendable) connected via a joint 2a. The shutter 1 may be electric or manual.

As shown in FIG. 2, the slats 2 are formed by coating paints 12 and 13 containing fluorine powder 11 on the front and back surfaces of a steel plate 10. Specifically, a cold-rolled steel sheet having a thickness of about 0.4 to 1 mm is used as the steel sheet 10. The front and back surfaces of the steel sheet 10 are plated with 95% zinc, 5% aluminum, and a basis weight. 1
A zinc / aluminum alloy plating layer of about 80 g / m ² ,
15 are formed in advance.

The zinc / aluminum alloy plating layers 14 and 1
When coating the front and back surfaces of the steel plate 10 on which the steel 5 is formed, chromate layers 16 and 17 are formed in advance by applying chromic acid to the front and back surfaces. First, on the surface of the steel plate 10 (on the chromate layer 16), an epoxy-based undercoat paint 18 is applied by a roll coater method and baked at about 200 ° C. to thereby give an undercoat film layer 19 having a thickness of about 5 μm. To form

Next, on the surface of the steel sheet 10 (on the undercoat film layer 19), a topcoat paint 12 containing fluorine powder 11 is applied by a roll coater method.
A top coating film layer 20 having a thickness of about 10 to 20 μm is formed by baking, and a back coating 13 containing fluorine powder 11 is applied on the back surface (on the chromate layer 17) of the steel plate 10 by a roll coater method. And baking it at about 200 ° C to a thickness of 10 to 15 μm
Approximately the back surface coating layer 21 is formed.

The overcoat 18 is obtained by mixing a paint composed of a polyester resin, a pigment (inorganic substance) and a solvent with a fluorine powder 11 of a few percent by weight of the paint excluding the solvent.
The back paint 21 is composed of a paint composed of a polyester resin, a pigment (inorganic substance) and a solvent, and a few percent of the paint weight excluding the solvent.
Fluorine powder 11 and several% of paint weight excluding solvent
And a wax (lubricant) 22. The size of the fluorine powder 11 is preferably about several μm to 20 μm.

The coating (formation of the undercoating layer 19, the overcoating layer 20, and the backside coating layer 21) is sequentially and continuously performed at a factory while feeding the steel sheet 10 wound into a roll. Then, the slats 2 are processed from the steel sheet 10 painted by the pre-coat method in this manner.

According to the shutter 1 having the above configuration, the shutter plate 3 in which the slats 2 are connected in an armor shape, and the guide rails 4 and 4 for guiding both sides of the shutter plate 3.
And a shutter box 6 housing a winding drum 5 for winding the shutter plate 3,
Since the slats 2 are formed by coating paints 12 and 13 containing fluorine powder 11 on the front and back surfaces of the steel plate 10,
The wear resistance of the front and back surfaces of the slat 2 can be improved,
Abrasion of the front and back surfaces of the slats 2 due to rubbing between the slats 2 can be suppressed, thereby suppressing generation of flaws.

For example, when winding up the slat 2,
Each of the slats 2 rotates in the direction of the arrow with the joint 2a at the point A in FIG. 3 as a fulcrum and is wound around the winding drum 5, and at this time, as shown in FIG. The top and bottom surfaces of the slats 2 come into contact with each other and rub, especially at the beginning of winding, since the entire weight of the large number of slats 2 hanging below the joint 2a is applied to the joint 2a, and the slats 2 come into strong rubbing. Front and back are fluorine powder 1
Since the slats 2 are covered with the coating layers 20 and 21 containing 1, the abrasion of the front and back surfaces of the slats 2 is suppressed, and the occurrence of flaws can be suppressed or prevented.

Therefore, even if the shutter plate 3 is repeatedly raised and lowered, the surface and the back surface of the slat 2 and the joint 2a of the slat 2 can be kept in a state of little friction or wear, and the surface and the slat 2 The generation of flaws due to friction or wear of the back surface and the joint 2a of the slat 2 and the generation of rust and friction noise due to the flaws can be suppressed, and the appearance can be maintained and the durability can be improved.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various design changes and the like can be made without departing from the gist of the present invention. Is possible. For example, in the above-described embodiment, a pre-coat method in which painting is performed in a factory is shown, but a post-coat method in which painting is performed on site may be used. In addition, polyester resin is preferable as a raw material of the top coating material or the back surface coating material, but for example, a fluorine resin may be used.

[0018]

In summary, according to the present invention, there is provided a shutter plate having a plurality of slats connected thereto, a guide rail for guiding both sides of the shutter plate, and a shutter accommodating a winding drum for winding the shutter plate. A shutter provided with a box, wherein the slats are formed by applying a paint containing fluorine powder on the front and back surfaces of the steel plate, so that the wear resistance of the front and back surfaces of the slats is improved, and the slats rub against each other. Therefore, wear of the front and back surfaces of the slat can be suppressed, and generation of flaws can be suppressed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a shutter showing an embodiment of the present invention.

FIG. 2 is a view schematically showing a cross-sectional structure of a slat of the shutter.

FIG. 3 is a view schematically showing a structure of a winding section of a shutter.

FIG. 4 is a conceptual diagram of contact between slats.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shutter 2 Slat 3 Shutter plate 4 Guide rail 5 Winding drum 6 Shutter box 10 Steel plate 11 Fluorine powder 12, 13 Paint

Claims (1)

[Claims] 1. A shutter comprising: a shutter plate formed by connecting a plurality of slats; a guide rail for guiding both sides of the shutter plate; and a shutter box containing a winding drum for winding the shutter plate. The shutter is characterized in that the slats are formed by coating a paint containing fluorine powder on the front and back surfaces of a steel plate.