JPH0253465U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 shows a partially cutaway front view of the essential parts of the telescoping shutter, which is the first embodiment of the present invention, Fig. 1A is a partially cutaway front view when the shutter is opened, and Fig. 1B shows the shutter extended. Fig. 1C is a partially cutaway front view showing the effect when the lower end of the slat curtain is lifted when the shutter is closed, and Fig. 1D is a partially cutaway front view showing the shutter in the closed state. FIG. 2 is a partially cutaway front view of the essential parts of the telescopic shutter, which is the second embodiment of the present invention, and FIG. Figure 2 (b) is a partially cutaway front view showing the shutter in the extended state when daylighting is blocked; Figure 2 (c) is a partially broken front view showing the effect when the lower end of the slat curtain is lifted when the shutter is in the extended state and the daylight is blocked. Figure 2D is a partially cutaway front view showing the shutter in its contracted state when it is fully closed, Figure 3 is a front view showing the entire telescopic shutter in which the present invention is implemented, and Figure 4
The figure is a partially enlarged sectional view showing the side surface of the above telescopic shutter in the extended state, and FIG. 5 is a partially enlarged sectional view showing the side surface of the same telescopic shutter in the contracted state. 1...Telescopic shutter, 2...Slat curtain, 3...Rail, 5...Lock mechanism, 6...Floor surface, 7...
Gap, 8...Lock bar, 10...Arm, 11...Locking member, 12...Claw, 16...Spring, 17...Slat.

Claims (1)

[Claims for Utility Model Registration] (1) A slat curtain is formed by connecting a number of slats in parallel so that they can expand and contract in the vertical direction, and both lateral ends of the slat curtain are connected to vertical rails. In a locking device for a telescoping shutter that opens and closes an opening in a building by guiding it along the slat curtain, at least when the slat curtain is closed in the extended state, the lower slat curtain is prevented from moving upward. A locking device for a telescoping shutter, characterized in that a locking mechanism is provided between the rail and the lateral end of the slat curtain to lock and lock the slat curtain below the rail. (2) A lock bar 8 which is held vertically within the rail and is urged upward by a spring 16, and a lock bar 8 which protrudes into the rail from the lateral end of the slat above the slat curtain. an arm 10 which can abut against the upper end of the lock bar 8 and project the lower end of the lock bar 8 downward against the spring bias when the slat curtain is closed in the extended state; A locking member 11 whose rotation is restricted by colliding with the lower end portion of the lock bar 8 which protrudes downward against the spring bias.
The slat curtain protrudes from the lower lateral end into the rail, and when the slat curtain is closed in its extended state, only the lower part of the slat curtain is lifted up against the locking member 11 whose rotation is limited. 2. The locking device for a telescoping shutter according to claim 1, further comprising a claw 12 for preventing the shutter from being opened.