JPH087034Y2 - Shutter device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a shutter device, for example, a device including a large number of slats formed by extruding aluminum.

(Prior Art) Conventionally, as a shutter device of this type, for example,
As shown in FIG. 2 of the Japanese Utility Model Laid-Open No. 56-121889, curl portions are formed so as to project from both sides in the width direction of each slat plate at the same side face portion, and both ends in the width direction are formed. The curl portion of the portion is formed in a substantially semicircular shape having different sizes in the upper and lower portions when connected. It is known that each slat plate has a structure in which upper and lower curl portions having different sizes are fitted into each other and rotatably connected to each other.

Further, as shown in FIG. 1 in the above publication, each slat includes an outer plate and an inner plate, and a horizontal upper piece and a lower piece formed between upper and lower end portions of the outer plate and the inner plate. And a curl portion curved toward the upper end of the inner plate at the upper end of the outer plate,
It is known that a curl portion is formed at a lower end portion of the inner plate toward the lower end portion of the outer plate, and upper and lower curl portions of the slats are fitted into each other and rotatably connected to each other. There is.

(Problems to be Solved by the Invention) In the structure shown in FIG. 2 of the publication, when the slats are vertically inserted and connected to each other via the respective curl portions, the curl portions having different sizes are fitted to each other. There is a problem in sorting which properly combines these curls, and when this sorting is mistakenly inserted into the large curl portions and the small curl portions, the curl portions are not enough. There is a problem that rotation is not obtained, it is difficult to wind the slat on the winding drum in an orderly manner, and the slat bodies are plate-shaped, which tends to weaken the strength.

In the structure shown in FIG. 1 of the publication, since the upper and lower pieces between the upper and lower end portions of the outer plate and the inner plate are horizontally formed, the curl portion is curled when the curl portion is rotated. The tip locking part of the upper part may contact the upper side piece or the lower side piece and the curl part may not rotate smoothly, and the tip side locking part of the upper curl part is located on the inner plate side and Since the tip locking part of the curl part is formed on the outer plate side, when slats are connected and suspended vertically, the slats are likely to be misaligned in the front-rear direction and are the same. There is a problem that it may not be possible to hang it neatly on a flat surface.

Therefore, the present invention has been made in view of such problems, and the curls can be easily fitted and connected to each other without any room for selection, and the curls can rotate the slats sufficiently smoothly. It can be moved, which improves the work efficiency of connecting each slat,
Each slat can be wound up on the winding drum in an orderly manner, and when the slats are connected and suspended in the up-down direction, the slats can be orderly placed on the same plane without irregular displacement in the front-back direction. It is an object of the present invention to provide a shutter device having sufficient strength for suspending.

(Means for Solving the Problems) A shutter device of the present invention has a plurality of slats each having a curl portion formed at an upper end portion and a lower end portion thereof. And a curl portion at the upper end of the shutter device, the slats each having an upper piece at the upper end and a lower piece at the lower end, and another curl at the upper surface of the upper piece. A guide surface for guiding the rotation of the curl portion is curved downward in an arc shape, and a guide surface for guiding the rotation of the other curl portion is curved upward in an arc shape on the lower surface of the lower piece. The upper and lower curls of each slat have the same shape and are symmetrically formed by curving from opposite directions in an arc shape, and the top and bottom of the curls in the thickness direction of the slat are formed. center Curling portions at the lower ends of the vertically adjacent slats, which are formed toward the lines, and which respectively form guide openings for inserting other curling portions between the upper and lower guide surfaces and the upper and lower tip portions. The curl portion of the upper end is rotatably fitted to each other, and the inner surface of the curl portion of the upper end is brought into contact with the tip of the curl portion of the lower end to connect the plurality of slats in the vertical direction.

(Operation) In the shutter device of the present invention, a plurality of slats having the same shape formed at the upper end and the lower end of each slat are curved symmetrically from opposite directions, and curls are formed symmetrically to each other. By inserting and inserting from the length direction, the plurality of slats are easily rotatably connected to each other in the vertical direction. Then, the inner surface of the curl portion at the upper end of each slat located at the bottom is brought into contact with the tip end of the curl portion at the lower end of each slat located at the top, so that each slat is hung vertically in the vertical direction. Be held.

At this time, the tips of the upper and lower curls of each slat are respectively formed toward the center line in the thickness direction of the slat, so that each slat is on the same plane without irregular displacement in the front-rear direction. It is neatly hung.

Also, when each slat is wound by the winding drum, each slat located at the upper part is wound and inclined, and the curl part at the lower end of each slat located at the upper part is located at the lower part. Each slat located at the lower part is sequentially pulled up while being rotated while being guided by the guide surface formed on the upper piece in the upper curl portion of each slat.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 is a shutter, and this shutter 1 is constituted by connecting a large number of slats 2 in the vertical direction. Each slat 2 is formed by cutting a long slat material obtained by extrusion-molding aluminum by an extrusion-molding method into a predetermined length according to the width of a frontage or the like.

Each of the slats 2 is hollow by an inner plate 3 and an outer plate 4 which are disposed opposite to each other, and an upper piece 5 and a lower piece 6 which are integrated between upper and lower ends of the inner plate 3 and the outer plate 4 in the width direction. It has a flat slat main body 8 having a hollow cross section in which a portion 7 is formed. The lower end of the inner plate 3 of the slat main body 8 is positioned below the lower piece 6 and is arcuate upward toward the outside. A curled portion 9 having a curved and substantially semicircular shape is continuously formed along the length direction.

A curl portion 10 of a substantially semi-circular shape, which is located above the upper piece 5 and is curved in an arc toward the inner lower side, is provided at the upper end portion of the outer plate 4 of the slat body 8 along the length direction thereof. It is continuously molded. Further, inside the upper and lower pieces 5 and 6, tapping holes 1 having a small semicircular diameter are formed.
1, 12 are continuously formed along the length direction, facing each other.

Thus, the upper piece 5 is formed such that the inner plate 3 side is lower and the outer plate 4 side is higher from the upper end of the inner plate 3 to the upper end of the outer plate 4, and the upper piece is large. Guide surface 13 curved downward in an arc due to curvature
Are formed. The curl portion is located above the upper piece 5 from the intersection of the upper piece 5 and the outer plate 4.
10 are connected in a row.

In addition, the lower piece 6 has a lower inner plate 3 side from the lower end part of the inner plate 3 to the lower end part of the outer plate 4, and the outer plate 4 is lower.
The side face is formed to be high, and a guide face 14 curved upward in an arc shape with a large curvature is formed on a lower surface portion thereof. Further, the curl portion 9 is integrally provided continuously below the lower piece 6 from the intersection of the lower piece 6 and the inner plate 3.

Thus, the upper and lower curl portions 9 and 10 are formed in the same shape and are symmetrically formed by curving from opposite directions in an arc shape, and the tip portions 15 and 15 of the upper and lower curl portions 9 and 10 are mutually formed. It is formed from the opposite direction toward the center line in the thickness direction of the slat body 8, that is, toward the center line in the thickness direction of the guide surfaces 13 and 14. Further, guide openings 16 and 16 into which the other curl portions 9 and 10 are fitted are opened between the tip portions 15 and 15 of the upper and lower curl portions 9 and 10 and the guide surfaces 13 and 14, respectively. . The guide ports 16 and 16 are provided with the folded portions 15a and 15a and the tips 15b and 5b of the tip portions 15 and 15 of the curl portions 9 and 10, respectively.
It is formed smaller than the width between.

Further, in the upper and lower curl portions 9 and 10, the tip portions thereof
Between the inner surfaces of the folded portions 15a, 15a of 15, 15 and the inner surfaces of the base end portions 17, 17 of the curled portions 9, 10 are arc-shaped guide surfaces having a relatively large curvature continuous with the guide surfaces 13, 14. 18, 18 are formed, and the folded-back portions 15a, 1 are continuously formed on the guide surfaces 18, 18.
On the inner surface from 5a to the tips 15b, 15b, the other curl parts 9,1
Contact surface 1 with a relatively small curvature with which the tip portions 15, 15 of 0 contact
9,19 are formed. In addition, the curved shape of the outer side surface portion of the tip end portions 15 and 15 extending from the folded-back portions 15a and 15a to the tip ends 15b and 15b is substantially the same as that of the guide surfaces 18 and 18.

When the shutter 1 is configured in this way, a plurality of slats 2 are formed in the same shape on the upper end and the lower end of each of the vertically adjacent slats 2 from opposite directions. By sequentially inserting curling portions 9 and 10 that are curved in an arc shape and are symmetrically formed into each other, the plurality of slats 2 are linked so as to be rotatable in the vertical direction, and a shutter of a size that opens and closes the frontage. 1 is easily configured.

Among the vertically adjacent slats 2, the tip end portion 15 of the curl portion 9 at the lower end portion of each slat 2 located at the upper portion is attached to the inner surface of the curl portion 10 at the upper end portion of each slat 2 located at the lower portion. The contact surface 19 is contacted. Therefore, the plurality of slats 2 are arranged in the upper slats 2 respectively.
Each slat 2 located in the lower part is sequentially hung and connected in the up-down direction.

At this time, the upper and lower curl portions 9 and 10 of each slat 2 are formed in the same shape, and the tip portions 15 of the upper and lower curl portions 9 and 10 are formed toward the center line of the slat body 8 in the thickness direction. As a result, each slat 2 is regularly suspended on the same plane without being displaced irregularly in the front-rear direction.

In addition, the cut ends at both ends in the length direction of each slat 2 are aligned, and slat retaining pieces (not shown) are brought into contact with the cut ends at both ends of every other slat 2 in the vertical direction. Screws are respectively screwed into the upper and lower tapping holes 11 and 12 of the slat 2 from the upper and lower insertion holes of the slip-out prevention piece to press-fit, thereby engaging the protrusions at the opening edge portions of the upper and lower insertion holes of the slat slip-out prevention pieces. Each screw is press-fitted and locked by a sufficient tightening torque in a state where the projecting edge is in contact with the opening ends of the tapping holes 11 and 12, respectively.

Each slat retaining piece is fastened to the slat 2, and at least one of the upper and lower curl portions 9,9,10,10 in which the upper and lower retaining portions of the slat retaining piece are inserted into each other. By contacting the cut ends of the upper and lower curl portions 9 and 10, the respective slats 2 are securely retained by the retaining portions at the upper and lower portions of the slat retaining pieces.

Next, when each slat 2 is wound on the winding drum A, each slat 2 located on the upper part is wound and inclined, and the curl portion at the lower end of the slat 2 located on the upper part is wound. 9 is rotated while being guided by the guide surface 13 formed on the upper piece 5 in the upper curl portion 10 of the slat 2 located below, and the tip of the curl portion 9 at the lower end of the slat 2 located above this. In the portion 15, the slats 2 located in the lower portion are sequentially pulled up via the curl portion 10 in the upper portion.

That is, in a state in which the contact surface 19 of the curl portion 10 of the upper end of the lower slat 2 is in contact with and supported by the tip 15b of the tip portion 15 of the curl portion 9 of the lower end of the slat 2 located in the upper portion. , The upper slat 2 is inclined by the winding drum A, and the upper slat 2 is upwardly moved with respect to the guide surface 18 of the curl portion 10 at the upper end of the lower slat 2 according to the winding inclination angle. The curl portion 9 at the lower end of the slat 2 positioned therein is guided by the guide surface 13 of the upper piece 5 to enter while rotating, and the slat 2 positioned at the upper part is sequentially pulled up and wound. It is wound around the take-up drum A.

(Effects of the Invention) According to the present invention, the upper and lower curls of each slat have the same shape and are formed symmetrically by curving from opposite directions in an arc shape. Since there is no room for selecting the upper and lower positions of the curls, the curl portions can be easily inserted and connected to each other, and the work efficiency of connecting the slats can be improved.

In addition, a guide surface for guiding the rotation of the other curl portion is curved downward on the upper surface of the upper piece of the slat, and the rotation of the other curl portion is formed on the lower surface of the lower piece of the slat. Since the guide surface that guides is curved upward in an arc shape, the tip of the curl portion does not come into contact with the upper piece or the lower piece when the curl portion is rotated by the upper and lower guide surfaces. It is possible to rotate the slats sufficiently smoothly, and the slats can be wound up on the winding drum in an orderly manner.

Also, the upper and lower curls of each slat have the same shape, and the tips are formed toward the center line in the thickness direction of the slat, and the tips of the curls at the bottom end contact the inner surface of the curl at the top. Therefore, when the slats are connected to each other and suspended in the up-down direction, the slats can be neatly suspended on the same plane without irregular displacement in the front-rear direction.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view of a shutter device, and FIG. 2 is an enlarged view of a part of the same slat. 2 ... slat, 5 ... upper piece, 6 ... lower piece, 9,10 ...
… Curl part, 13,14 …… Guide surface, 15 …… Tip part, 16 ……
Information door.

Claims (1)

[Scope of utility model registration request] 1. A plurality of slats each having a curl portion formed at an upper end portion and a lower end portion, and vertically adjacent slats are formed by a curl portion at a lower end portion and a curl portion at an upper end portion in a vertical direction. In the shutter device connected to each other, each slat has an upper piece on an upper end portion and a lower piece on a lower end portion, and a guide surface for guiding rotation of another curl portion is provided on an upper surface portion of the upper piece. Is curved in an arc shape toward, and a guide surface for guiding the rotation of another curl portion is curved in an arc shape upward in the lower surface portion of the lower piece, and the upper end portion and the lower end portion of each slat are formed. The curls of the same shape are formed symmetrically by curving from opposite directions in an arc shape, and the tip ends of the upper and lower curls are formed respectively toward the center line in the thickness direction of the slat,
Guide ports for inserting other curl portions are respectively formed between the upper and lower guide surfaces and the upper and lower tip portions, and the curl portion at the lower end and the curl portion at the upper end of each vertically adjacent slat are formed. A shutter device in which a plurality of slats are vertically connected to each other by being rotatably fitted in each other and abutting an inner surface of a curl portion of an upper end with a tip end of a curl portion of a lower end portion.