JP2829511B2 - Shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter installed in windows and entrances of buildings, garage openings, and the like.

In this specification, the left side of FIGS. 1, 4 and 5 is referred to as front, and the opposite side is referred to as rear.

[0003]

2. Description of the Related Art As shown in FIG. 3, a shutter provided outside a window of a general house is fixed to an outer surface of a wall (W) of the house, extends vertically and has a left and right guide groove (1a). Aluminum extruded profile guide rail
(1) and guide rails (1) connected to each other and both ends
A slat curtain (3) composed of a plurality of slats (2) that are inserted into the guide groove (1a) and guided up and down; a winding case (4) provided above the guide rail (1); There is a known one provided with a take-up shaft (not shown) arranged in a take-up case (4).

Conventionally, as shown in FIGS. 4 and 5, a length of the upper slat (2) of two adjacent upper and lower slats (2) in a slat curtain (3) of this kind is provided with a length. A concave U-shaped cross-sectional groove (5) extending in the direction and opening downward is formed on the lower slat (2).
On the upper end surface of the fitting groove (5) is formed a cross-section inverted J-shaped fitting ridge (6) that extends in the length direction and fits into the fitting groove (5).
Is slightly larger than the height of the fitting ridge (6). The fitting ridge (6) of the lower slat (2) is fitted into the fitting groove (5) from one end of the upper slat (2). At the lower edge of the rear wall of the fitting groove (5) on the upper slat (2), when both slats (2) are separated from each other, the fitting ridge (6) on the lower slat (2) A front protruding portion (7) with which the arc-shaped portion (6a) is engaged is provided. The slat (2) is made of aluminum and has a hollow shape, and is filled with a foamed polyurethane (8) .

[0005]

The conventional shutter has a slat curtain which is pulled from above.
There is a type in which (3) is wound on a winding shaft, and a type in which slat curtain (3) is wound up on a winding shaft by pushing up from below. In the former shutter, as shown in FIG.
(2) are separated from each other during winding, and the lower slat (2) is
The slat curtain (3) is smoothly wound around the winding shaft by swinging smoothly backward with respect to (2). When the lower slat (2) swings backward with respect to the upper slat (2) with the two slats (2) separated from each other, the fitting groove (6) of the fitting ridge (6) is used. 5) Prevention from falling off is prevented.

However, in the latter shutter, FIG.
As shown in the figure, two slats (2) vertically adjacent to each other
At the time of winding, they are close to each other,
Since the rear wall of the fitting groove (5) of (2) abuts on the upper end surface of the lower slat (2), the lower slat (2) is
There is a problem that the slat curtain (3) is not smoothly swung to the winding shaft as a result of not swinging backward smoothly with respect to (2).

An object of the present invention is to solve the above-mentioned problem and to provide a shutter which can smoothly perform the winding operation even when the slat curtain is wound on a winding shaft by pushing up from below. .

[0008]

SUMMARY OF THE INVENTION A shutter according to the present invention comprises a pair of guide rails having a guide groove and a plurality of slat curtains connected to each other and guided at both ends in the guide grooves. A lower surface of an upper slat of two adjacent upper and lower slats is formed with a cross-sectional inverted U-shaped fitting groove extending in the length direction and opening downward; On the upper end surface of the slat, a cross-sectional inverted J-shaped fitting ridge that extends in the length direction and fits in the fitting groove is formed, and the depth of the fitting groove is greater than the height of the fitting ridge. A front projection, which is slightly enlarged, is formed on the lower edge of the rear wall of the fitting groove in the upper slat, and when the two slats are separated from each other, the arc-shaped portion at the upper end of the fitting ridge on the lower slat engages. In the shutter provided with Between the arcuate portion of the bottom surface and the fitting convex fitting groove rat, in which rod-like body of circular cross section are interposed over its entire length.

According to the shutter of the present invention, between the bottom surface of the fitting groove of the upper slat and the arc-shaped portion of the fitting ridge.
Since a rod-shaped body having a circular cross section is interposed over the entire length, even when a pushing force is applied to the slat curtain from below, the vertically adjacent slats are prevented from approaching each other, and the upper slat is fitted. The rear side wall of the groove does not contact the upper end surface of the lower slat. In addition, when the lower slat swings rearward with respect to the upper slat, the outer peripheral surface of the rod slides on the bottom surface of the fitting groove of the upper slat and the arc-shaped portion of the fitting ridge of the lower slat. Touch Therefore, even when the slat curtain is wound up on the winding shaft so as to be pushed up from below, the lower slat smoothly swings rearward with respect to the upper slat.

[0010] In the shutter, it is preferable that rotatable rollers are attached to both ends of the rod-shaped member, and the rollers are guided by guide grooves of a guide rail to roll. In this case, the vertical movement of the slat curtain is performed smoothly.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. In the following description, FIGS.
The same components and portions as those shown in FIG. 5 are denoted by the same reference numerals, and redundant description will be omitted.

As shown in FIG. 1, the bottom surface of the fitting groove (5) of the upper slat (2) of the two upper and lower slats (2) and the arc-shaped portion of the fitting ridge (6) are formed. 6a), a synthetic resin rod (10) having a circular cross section is interposed over the entire length. The rod-shaped body (10) may be in any of a columnar shape and a cylindrical shape. The outer diameter of the rod (10) is
The radius of curvature is smaller than the radius of curvature of the bottom surface of (5) and the arc-shaped portion (6a) of the fitting ridge (6). The outer diameter of the rod-shaped body (10) is larger than the difference in height between the fitting concave groove (5) and the fitting ridge (6).

As shown in FIG. 2, a slat curtain (3)
A synthetic resin end cover (11) covering both ends of the slat (2) is fixed to the left and right ends of each slat (2). End cover (11), lower slat (2)
The fitting ridge (6) is fitted into the fitting groove (5) from one end of the upper slat (2), and is fixed to the slat (2). The lower end of the end cover (11) is notched,
Both ends of the fitting groove (5) are exposed to the outside. Rod (10)
Ends project through the notch at the lower end of the end cover (11).
A roller (12), which is guided by the guide groove (1a) and rolls, is rotatably mounted.

In the shutter having the above construction, when the slat curtain (3) moves up and down, the roller (12) rolls while being guided by the guide groove (1a) of the guide rail (1). 3) Up and down movement is performed smoothly.

When a slat curtain (3) is wound on a winding shaft and a lifting force is applied from below, a rod-shaped body is formed.
The outer peripheral surface of (10) comes into contact with the bottom surface of the fitting groove (5) of the upper slat (2) and the arc-shaped portion (6a) of the fitting ridge (6) of the lower slat (2). The upper and lower slats (2) are prevented from approaching each other, and the rear side wall of the fitting groove (5) of the upper slat (2) does not contact the upper end surface of the lower slat (2). And in this state, the lower slat
When (2) swings backward relative to the upper slat (2),
Outer peripheral surface of rod (10) and mating groove of upper slat (2)
(5) and the arc-shaped portion (6a) of the fitting ridge (6) of the lower slat (2) are in sliding contact with each other. ) Is also smoothly wound on the winding shaft.

[0016]

According to the shutter of the present invention, as described above, even when a pushing force is applied to the slat curtain from below, the lower slat smoothly swings rearward with respect to the upper slat. Therefore, even in a type in which the slat curtain is wound up on the winding shaft by pushing up from below, the winding of the slat curtain on the winding shaft is performed smoothly.

[Brief description of the drawings]

FIG. 1 is an enlarged cross-sectional view showing two slats vertically adjacent to a shutter of the present invention.

FIG. 2 is a cutaway perspective view showing a part of the shutter according to the present invention.

FIG. 3 is a perspective view showing a shutter installed on an outer wall of a house.

FIG. 4 is an enlarged cross-sectional view showing a state in which two vertically adjacent slats are wound in a conventional shutter of the type in which a slat curtain is wound around a winding shaft by being pulled from above.

FIG. 5 is an enlarged cross-sectional view showing a state in which two vertically adjacent slats are wound in a conventional shutter of a type in which a slat curtain is wound up on a winding shaft by being pushed up from below.

[Explanation of symbols]

 (1) Guide rail (1a) Guide groove (2) Slat (3) Slat curtain (5) Fitting groove (6) Fitting ridge (6a) Arc-shaped part (7) Front projection (10) Rod

Claims (2)

(57) [Claims] A pair of guide rails having a guide groove and a slat curtain formed of a plurality of slats connected to each other and guided at both ends in the guide groove. In the lower end surface of the upper slat of the slats, an inverted U-shaped fitting groove extending in the length direction and opening downward is formed, and the upper end surface of the lower slat is also provided with a longitudinal direction. And a fitting ridge having a cross-section inverted J-shape is formed to fit into the fitting groove, the depth of the fitting groove is made slightly larger than the height of the fitting ridge, and the upper slat is fitted. A shutter provided with a front protruding portion at the lower edge of the rear side wall of the concave groove, wherein when the two slats are separated from each other, an arcuate portion at the upper end of the fitting ridge is engaged with the lower slat; Bottom of mating groove and arc of mating ridge Between the portions, shutter rod-like body of circular cross section are interposed over its entire length. 2. The shutter according to claim 1, wherein rotatable rollers are attached to both ends of the rod-shaped member, and the rollers are guided by guide grooves of a guide rail to roll.