JPH0159152U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of the latch mechanism for a smoke exhaust window according to an embodiment of the present invention in a closed state, Fig. 2 is a front view of the same embodiment in a closed state, and Fig. 3 is the same as Fig. 1. FIG. 4 is a cross-sectional view of the window opening state in the same embodiment, FIG. 5 is a cross-sectional plan view of the window closing operation start state in the same embodiment, and FIG.
The figure is a front view showing an example of use of the same embodiment, and FIG. 7 is a side view of the window in an open state showing an example of use of the same embodiment. 1... Case, 2... Wire, 3... Pulley, 4... Roller lever, 7... Tension spring, 9... Lock lever, 11, 14... Spring, 12... Latch, 15... Window stile, 16... Hook, 18... Window, 19 ...Window frame, 21
...Window opening device.

Amendment January 7, 1986 The scope of claims for utility model registration is amended as follows.

[Scope of Claim for Utility Model Registration] In a smoke exhaust window in which the window is opened by a window opening force applying device with the upper or lower edge of the window as the center of rotation,
A pulley is pivotally supported by a case fixed to the lower edge or upper edge of the window frame, and a pulley hangs the fixed end side of a wire with one end fixed to the window frame; a roller lever that is biased to rotate downward and rotated upward against a tension spring due to the tension of a wire hung on the tip; a lock lever which is biased and supported by a shaft, and which is pushed down and rotated by the roller lever against the spring when the tension of the wire is released, and a shaft rotatably mounted between the pulley of the case and the lock lever. The lock lever and the hook attached to the window sill can be freely engaged with and detached from each other, and are biased by a spring in a direction in which the engagement with these is released, and when the window is closed, the hook resists the spring. A latch mechanism for a smoke exhaust window, comprising: a latch that is pressed and rotated by a latch; The brief description of the drawing has been amended as follows. The phrase "cross-sectional view" on page 11, line 12 of the specification is amended to read "cross-sectional plan view." On page 11, line 13 of the specification, the phrase "a front view of the same embodiment in a closed state" is corrected to read "a cross-sectional view taken along the line -- in FIG. 1." On page 12, line 5 of the specification, the phrase "window opening device" is amended to read "window opening force applying device."

Claims (1)

[Scope of utility model registration request] In a smoke exhaust window where the lower side of the window is opened by a window opening device with the upper edge of the window as the center of rotation, the wire is fixed to the lower edge of the window frame, with one end fixed to the window frame and pivoted to the case. A pulley is hung on the end side, and the case is rotatably supported by the case, and is biased to rotate downward by a tension spring, and is pulled upward against the tension spring by the tension of the wire hung at the tip A roller lever that rotates to the above case and a roller lever that rotates to the
and a lock lever that is biased and pivoted by a spring toward the roller lever side, and is pushed down and rotated by the roller lever against the spring when the tension of the wire is released, and the pulley of the case and the lock lever. It is rotatably supported between the lock lever and the hook attached to the window sill, and is biased by a spring in the direction in which the lock lever and the hook attached to the window sill are released. A latch mechanism for a smoke exhaust window, comprising a latch that is pressed and rotated by the lock against a spring.