JPH0137094Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field This invention relates to a shutter slat.

Prior Art As shown in Fig. 1, in a shutter, usually multiple stages of slats 1 are connected vertically, the topmost slat 1 is connected to a take-up shaft 2, and both ends of each slat 1 are guided by guide rails 3. By rotating the winding shaft 2, the guide rail 3
The slat 1 can be moved up and down along the As shown in FIG. 2, the structure of the slat 1 consists of a main body 4 and a hook 5 that projects upward from the main body 4. 6 and is inserted and connected into the main body portion 4. The vertically connected slats 1 are attached to hook portions 5 as shown by chain lines in the same figure.
It can be expanded and contracted up and down by being inserted into the main body 4 of the upper slat 1.

However, in a shutter constructed by connecting slats as described above, when the hook portion 5 of each slat 1 is suspended from the main body 4 of the upper slat 1, as shown by the solid line in FIG. 1 is relatively rotatable only in the slat winding direction shown in FIG.
When they are recessed into the main body, they cannot rotate relative to each other. Therefore, the winding direction of this shutter is limited to one direction, and winding is possible only when each slat 1 is extended as shown in FIG. The disadvantage was that the rotation operation was complicated.

Purpose The purpose of this invention is to provide a slat that can be connected vertically and retractably and can be relatively rotated back and forth in either the expansion or contraction state.

Structure of the invention The slat of this invention has a body part and a hook part separately, and the lower end of the hook part is exposed outward from the lower edge of the upper slat when the hook part is retracted into the upper slat. form,
The main body is rotatably suspended from the lower end of the hook.

Embodiment Hereinafter, an embodiment embodying this invention will be described with reference to FIGS. 3 to 8. The shutter 11 is capable of opening and closing the skylight and entrance of the room continuously. It is possible to move up and down along a guide rail 13 by rotating a winding shaft 12 provided on the winding shaft 12 .

The connecting structure of the slats constituting the shutter 11 will be explained with reference to FIG.
The main body portion 15 and the hook portion 16 are provided separately. The hook part 16 is provided with a locking protrusion 17 having a circular cross section at its lower end, and an engagement groove 18 is provided at the upper end of the main body part 15, and the locking protrusion 17 is rotatably inserted into the engagement groove 18. The upper and lower parts are irremovably fitted together. By inserting the upper end of the hook portion 16 into the main body 15 of the upper slat 14 through a slit 19 provided at the lower end of the main body 15, the multiple slats 14 can be vertically expanded and retracted. is connected to. In addition, the hook part 16
is a reinforcing frame 1 whose upper end is provided inside the main body 15
In the retracted state in contact with 5a, its lower end is the main body part 15
It is formed so that it is exposed outward from the lower edge of the. Further, the tip of the hook portion 16 is provided with an inward protrusion 16a as shown in FIG.
6 is prevented from falling downward from the main body 15 even when it rotates relative to the main body 15.

As shown in FIG. 6, the uppermost slat 14 has a main body 15 connected to the winding shaft 12 by a belt 20. The belts 20 are provided at three locations on both sides of the slat 14 in the longitudinal direction and at the center.

Now, the operation of the slats 14 connected as described above will be explained.

As shown in the upper part of Fig. 4, the upper slat 14
When the hook portion 16 is suspended from the main body portion 15 and the slat 14 is extended, the hook portion 16 can rotate relative to the upper main body portion 15 only in the direction of arrow A shown in the figure. The same hook part 16 is attached to the lower main body part 15.
The locking protrusion 17 at the lower end and the engagement groove 1 at the upper end of the main body 15
Due to the engagement relationship with 8, it is always possible to rotate in both the front and rear directions (the left and right directions in FIG. 4). Further, as shown in the lower part of FIG. 4, when the hook portion 16 is recessed into the main body portion 15 of the upper slat 14 and the connection of the slat 14 is contracted, the lower end of the hook portion 16 is connected to the main body portion of the upper slat 14. Since the hook portion 16 is exposed to the outside beyond the lower edge of the hook portion 15, the hook portion 16 can always rotate in the front-rear direction relative to the lower body portion 15, similar to the state in which the connection of the slat 14 is extended. In this manner, each slat 14 can be rotated relative to the slats 14 connected above and below in both directions, both in the extended and contracted states. Therefore, even if the direction in which the shutter is bent at the boundary S between the skylight and the doorway of the room in FIG. It can be done without. Furthermore, the slats 14 connected in this manner can be wound up in any direction even when the hook portion 16 is recessed into the upper slat main body, as shown in FIGS. 7 and 8.

Effects As detailed above, in this invention, the main body and the hook are provided separately, and when the hook is retracted into the upper slat, its lower end is located outside the lower edge of the upper slat. The main body part 1 is formed so as to be exposed to the lower end of the hook part 16.
By rotatably suspending and supporting the slats 14, the slats 14, which are vertically connected in multiple stages, can be relatively rotated in both the front and rear directions in either the expansion or contraction state. Since the bending direction can be freely selected and the slat can be wound up even in a contracted state, the number of winding revolutions can be reduced and winding can be performed faster than before, which is an excellent effect.

[Brief explanation of the drawing]

Figure 1 is a side view showing the slat winding structure of a conventional shutter, Figure 2 is a side view showing the slat connection structure, Figure 3 is a schematic diagram showing the installed state of the shutter related to this invention, and Figure 4. Figure 5 is a side view showing the connecting structure of the shutter embodying this idea, Figure 5 is an enlarged sectional view showing the tip of the hook part, and Figure 6 is a side view showing the connecting structure between the uppermost slat and the winding shaft. 7 and 8 are side views showing the state in which the slat of this invention is wound up. A slat 14, a main body 15, and a hook 16.

Claims (1)

[Claims for Utility Model Registration] 1. A slat in which a hook portion 16 provided above the main body portion 15 of the slat 14 is inserted and connected so as to be retractable into the upper slat 14, and can be connected in multiple stages up and down. and a hook portion 16 are provided separately, and the hook portion 16 is formed so that its lower end is exposed outward from the lower end edge of the upper slat 14 when the hook portion 16 is retracted into the upper slat 14, and the hook portion 16 is A shutter slat characterized in that a main body part 15 is rotatably suspended and supported from the lower end of a part 16. 2. The hook part 16 has a locking protrusion 17 with a circular cross section at its lower end, and the locking protrusion 17 is rotatably fitted into the engagement groove 18 provided at the upper end of the main body part 15. Shutter slats according to scope 1.