JPH0316473B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for remotely opening and closing high windows, such as smoke exhaust windows, placed at high places in buildings, construction sites, and the like.

Smoke evacuation windows installed in buildings, construction sites, etc. must be constructed in such a way that the window panels can be fully opened quickly in order to quickly remove smoke in the event of a fire. , the window plates are biased in the direction of window opening by spring elasticity, the cables connected to these window plates are wound around a drum to close the window, and the locking pawl is engaged with a ratchet wheel that rotates in conjunction with the drum. This prevents the drum from reversing and keeps the window closed, and in the event of a fire, the locking pawl is disengaged from the ratchet wheel and the window plate is fully opened at a rapid speed. Smoke evacuation windows such as these are normally used as ventilation windows by keeping the window plate in a half-open state, and conventionally, opening the windows during normal times involves pulling cables from the rotating drum by operating a handle. The window panels are constructed and rolled out, and the window panels are gradually opened, and it takes a long time to operate, so even when used as a half-open ventilation window, a device that can open the window in a short time has appeared. It was wanted.

The present invention has been completed in response to such demands, and provides a switchgear that can be fully opened in the event of a fire outbreak and half-opened in normal times, respectively, in one action. The purpose is to

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

As shown in Figure 1, a window frame 1 is fitted into a horizontally long window hole drilled in the upper part of the wall of a building, and this window frame 1 is separated by a partition frame 2 installed vertically in the center. It is divided into two sections, and each section is equipped with a window plate 4 that swings toward the outdoors around a fulcrum 3 at the upper end to open the window. The torsion bar 5 has each torsion part 6 arranged in opposite directions along the upper edge of the window frame 1 and is fixed at its end, and the tip of each arm part 7 is attached to a metal fitting 8 fixed to both sides of the window plate 4. , and each window plate 4 is urged by the elasticity of the torsion bar 5 in the direction of protruding toward the outdoors and opening the window. As shown in FIG. 2, the partition frame 2 of the window frame 1 has a shaft 9 that freely passes through and is supported, and has notches 11 on the outer periphery at the protruding ends on both sides.
A circular plate 10 having a shape of A pin 13 is fitted into the elongated hole 15, and a shaft 16 is freely rotatably penetrated and supported above the shaft 9 of the partition frame 2, and one end of levers 17, 17a is fixed to the protruding ends on both sides. A pin 18 protruding from each lever 17, 17a engages with the outer periphery of the disk 10, and the window plate 4
When the torsion bar 5 is pushed out toward the outdoors by the elasticity of the torsion bar 5, the arm 12 also rotates in the same direction due to the engagement of the pin 13 and the elongated hole 15, and in the middle of this, the pin 18 of the levers 17, 17a connects with the arm 12. The arm 12 engages with the notch 11 of the disc 10 that rotates together.
is prevented from rotating, and the window plate 4 is held in a half-open position protruding toward the outdoors by about 15 degrees, as shown by the two-dot chain line in FIG. The free end of the lever 17 is extended, and a spring 69 is applied to the extended end to bias the lever 17 in a downward direction.
When the extended end of the lever is lifted upward against the elasticity of the spring 69, the levers 17 on both sides connected to the shaft 16,
17a rotates counterclockwise and the pin 18 opens into the notch 1.
1, the opening degree restriction of the window plate 4 is released, and the elasticity of the torsion bar 5 causes the window plate 4 to move until the pin 13 comes into contact with the upper end of the elongated hole 15, as shown by the dashed line in the figure. The window plate 4 is protruded and held in a fully open position protruding at approximately 45 degrees. One of the levers 17 serves as a release member for releasing the restriction.

Two cable conduits 20 and 21 connected to a box 19 installed below the window frame 1 rise up to the ceiling of the building, and one cable conduit 20 is piped to the top of the partition frame 2 of the window frame 1. The second one inserted into it
The end of the cable 22 is connected to one of the levers 1 described above.
7, this second cable 22
, the free end of the lever 17 is lifted up and the pin 18 is removed from the notch 11 of the disc 10, and the other cable conduit 21 is attached to the window frame 1.
The first cable 23 is piped to the top of one side edge of the window frame 1, and the first cable 23 pulled out from the end hangs down along the side frame, turns the turning pulley 24, and is routed along the lower edge of the window frame 1. A pair of pulleys 2 are pivotally supported on the lower edge of the window frame 1, two pairs for each section.
After turning one of the pulleys 26, two of which are pivotally supported at the lower end of each window pane 4, the pulley 25 is turned from the indoor side to the outdoor side. After being hung on the other pulley 25 of the window frame 1 and successively routed to the two compartments, the turn pulley 27 provided at the other side end of the window frame 1 is turned and the cable is routed parallel to the horizontal portion. , the middle of the wiring is connected to the free end side of the arm 28 which is pivotally supported on the lower edge of the window frame 1 near the pulley 25, and further,
The terminal of the first cable 23 which turns the turning pulley 29 provided at the one side end and rises along the side frame is a tension coil spring 30 whose upper end is fixed to the upper part of the side frame. is connected to the bottom end of
When this first cable 23 is pulled toward the box 19 side, a pair of pulleys 25, 25 pivoted on the lower edge of the window frame 1 and a pulley 26 pivoted on the lower edge of the window frame 4 are pulled.
The part spanned between the window frame 4 is shortened and the window frame 4 is drawn to the window frame 1, and the window is closed. When the first cable 23 is pulled even more strongly after the window is closed, the tension coil spring 30 is stretched and the box is closed. 19 side, the arm 28 pivoted on the lower edge of the window frame 1 rotates counterclockwise from the position shown by the solid line in FIG. 4, and the pin 31 protruding from the lower surface of its free end , engages with a curved surface 33 formed on a support 32 fixed to the lower edge of the window plate 4 to strongly draw the window frame 4 to the window frame 1;
And it is designed to be maintained in that state.

As shown in detail in FIGS. 5 and 6, the box 19 has a base 35 fixed to the bottom surface of the main body 34, and the base 35 is fixed in a circular space 36 formed between the bottom surface of the base 35 and the main body 34. A disc 37 integrally formed with a vertical shaft 38 rotatably supported by the vertical shaft 38 is fitted with a small gap, and a drum 39 for winding the first cable 23 around the vertical shaft 38 is connected to the drum 39. A ratchet wheel 40 constituting the lower collar is fixed, and a hexagonal connecting hole 4 is provided at the upper end of the vertical shaft 38.
1 is bored, and the main body 3 straddles the base 35.
A drive shaft 43 concentric with the vertical shaft 38 is supported by a bracket 42 attached to the drive shaft 42 so as to freely rotate and slide vertically, and a compression coil spring 44 is fitted around the outer periphery.
When the handle 45 is fitted into the hexagonal part 43a at the upper end and pushed down against the elasticity of the compression coil spring 44, the hexagonal part 43b at the lower end moves upwardly. When the handle 45 is rotated clockwise in FIG. 6, the first cable 23
is wound around the drum 39 and pulled, and when the handle 45 is released, the drive shaft 43 moves upward due to the elasticity of the compression coil spring 44 and separates from the vertical shaft 38, so even if the drum 39 rotates, , the handle 45 is designed not to rotate, and a space 36 around a disc 37 integrally formed at the lower end of the vertical shaft 38 is filled with fluid such as silicone oil, which prevents the disc from rotating due to its viscous resistance. 37 is suppressed, and the speed of the first cable 23 let out from the drum 39 integrally engaged with the first cable 23 is suppressed, thereby preventing the window plate 4 from opening shockingly due to the elasticity of the torsion bar 5. It's becoming like that. Further, a lever 49 is supported on the base 35 by a shaft 50, a locking pawl 51 is supported on this lever 49 by a shaft 52,
This locking pawl 51 is biased clockwise in FIG.
When 9 is biased as shown by the solid line in the figure, the locking pawl 51 engages with the ratchet wheel 40 to prevent its counterclockwise rotation, and a tension spring 55 is applied to the lever 49. The tensile force causes the pin to move as shown in solid lines and chain lines in the same figure, and a pin 54 is erected on the upper surface of the central portion.
Further, an engagement piece 47 having an inward slope 48 is fixed to the tip of an arm 46 fixed to the lower end of the drive shaft 43, and the lever 49 is rotated to the position shown by the chain line in the figure. In the state, the drive shaft 4
3 is rotated clockwise while pressing down, the slope 48 of the engaging piece 47 engages with the pin 54, and the lever 49
rotates clockwise and returns to the position shown by the solid line in the figure. A fenestration operation plate 58 having a knob 59 erected at one end is slidably supported on the main body 34 by sliding guides 56 and 57.
A pin 60 erected at the other end is fitted into a long hole 61 formed at the free end of the lever 49, so that the lever 49 is rotated by linear movement of the fenestration operation plate 58. Further, the main body 34 has a release operation lever 62 with a knob 64 erected on the tip.
3, and a tension spring 66 is applied so that the tension spring 66 firmly moves the release operation lever 62 into the position shown in solid lines and chain lines in FIG. The terminal of the second cable 22 is connected to the center in the length direction, and its free end engages with a pin 65 provided upright on the fenestration operation plate 58, and the release operation lever 62 is connected to the second cable 22. When the second cable 22 is rotated counterclockwise in FIG. 6, the second cable 22 is pulled, and at the same time, the fenestration operation plate 58 is moved to the position shown by the chain line in the same figure.

Next, the operation of this embodiment will be explained. First, in order to half-open the window panel 4 for ventilation during normal times,
When the cable 23 is wound around the drum 39 and the window plate 4 is closed, the fenestration operation plate 58 is moved to the sixth position.
When the lever 49 moves to the position shown by the chain line in the figure, the lever 49 rotates to the position shown by the chain line in the figure, the locking pawl 51 comes off the ratchet wheel 40, and the drum 39 becomes free to rotate.
First, the first cable 23 is slightly unwound from the drum 39 by the elastic force of the tension coil spring 30 connected to its terminal, and the arm 29 comes off the curved surface 34 of the receiver 32, and the window plate 4 is unlocked. After that, the window plate 4 is pushed out to the outdoor side by the elasticity of the torsion bar 5, and the notch 11 of the disc 10 fixed to the base end of the arm 12 engages with the pin 18 of the lever 17, 17a, and the window plate 4 is pushed out to the outside. By restricting rotation, the window plate 4 is held in a half-open state in which it protrudes approximately 15 degrees.

Next, in order to fully open the window panel 4 for smoke evacuation in the event of a fire, rotate the release operation lever 62 in the counterclockwise direction in FIG. The lever 17a that operates together with the lever 17a rotates upward, the pin is removed from the disk 10, the rotation restriction of the arm 12 is released, and the fenestration operation plate 58 moves to the position shown by the chain line in the figure. Since the locking pawl 51 is removed from the ratchet wheel 40, the window plate 4 protrudes toward the outdoors until the pin 13 of the arm 12 comes into contact with the upper end of the elongated hole 15, and is fully opened at approximately 45 degrees. At this time, the head of a screw 67 installed on the outer periphery of the disc 10 on one side engages with a limit switch 68, and a warning light is turned on. To close the fully opened window plate 4, fit the handle 45 onto the drive shaft 43 and rotate it while pushing down, and the drum 3
At the same time, the first cable 23 is wound around the arm 46 and the window plate 4 is pulled together, and at the same time the engaging piece 4 of the arm 46 is pulled up.
7 engages with the pin 54, and the lever 49 returns to the position shown in solid line in FIG.
8 and pin 65, the release operation lever 62 that engages with this fenestration operation plate 58 returns to the position indicated by the solid line, and the levers 17 and 17a swing downward to release the disc 1.
0, and the opening regulating device described above is set again.

As specifically explained in the above embodiment,
The swinging opening/closing window opening/closing device of the present invention includes a window plate that opens and closes by swinging with one end as a fulcrum attached to a window frame,
A biasing device for biasing the window plate in the window opening direction is located on the window frame, and a first cable connected to the window plate is wound around a drum to close the window, and rotates in conjunction with the drum. In the swing opening/closing window opening/closing device, the opening/closing device for a swinging opening/closing window is configured to prevent the drum from reversing and maintain the window in a closed state by engaging a locking pawl with a ratchet wheel. a window opening operation member that opens the window by separating the locking pawl from the ratchet wheel; a release operation member connected to the release member by a second cable to release the restriction of the opening degree regulating device, such that the release operation member engages and operates the fenestration operation member in its action stroke; and a return member for returning the fenestration operation member and the release operation member to their original positions in conjunction with the rotation of the drum in the winding direction. For ventilation, operating the opening operation member releases the locking pawl from the ratchet wheel, creating a half-open state regulated by the opening regulating device. In the event of a fire, operating the release operation member releases the second cable. At the same time as the opening regulation of the opening regulation device is released by being pulled, the window opening operation member is activated and becomes fully open, and when the first cable is wound around the drum and the window is closed, the window opening operation member is released. Since the members return to their original positions, opening and closing operations can be performed easily and quickly.

[Brief explanation of the drawing]

The accompanying drawings show one embodiment of the present invention, in which FIG. 1 is a partially cutaway perspective view showing an overview, FIG. 2 is a perspective view of a part of the opening regulating device, and FIG. Figure 4 is an enlarged plan view of the window pull mechanism, Figure 5 is a partially cutaway perspective view of the box, Figure 6 is an enlarged sectional view taken along line A,
The figure is a partially cutaway plan view of the box. 1: window frame, 4: window board, 5: torsion bar, 1
0: Disc, 11: Notch, 12: Arm, 13: Pin, 14: Guide plate, 15: Long hole, 17, 17a:
Lever, 18: Pin, 19: Box, 22: Second cable, 23: First cable, 39: Drum, 40: Ratchet wheel, 43: Drive shaft, 45: Handle, 46: Arm, 47: Engagement Piece, 48: Slope,
49: Lever, 51: Locking claw, 58: Window opening operation plate, 62: Release operation lever.

Claims (1)

[Claims] 1. A window board that opens and closes by swinging with one end as a fulcrum is attached to the window frame, and a biasing device that biases the window board in the window opening direction is installed on the window frame, and a first A cable is wound around a drum to close the window, and a locking pawl is engaged with a ratchet wheel that rotates in conjunction with the drum to prevent the drum from reversing and maintain the window in the closed state. In the opening/closing device for a movable opening/closing window, an opening regulating device is installed on the window frame and includes a release member that regulates the opening of the window plate to a certain small angle and releases the regulation, and the locking A window opening operation member that opens the window by separating the pawl from the ratchet wheel, and a release operation member that is connected to the release member with a second cable to release the restriction of the opening degree regulating device, the release operation member is arranged so as to engage and operate the fenestration operation member during its operation stroke, and the fenestration operation member and the release operation member are returned to their original positions in conjunction with the rotation of the drum in the winding direction. An opening/closing device for a swinging opening/closing window, characterized in that it is provided with a return member for returning to its original state.