JP7560378B2 - Shoji fixing pieces and smoke exhaust windows - Google Patents

Description

The present invention relates to a shoji fixing piece that holds a shoji in a closed position, and a smoke exhaust window that is equipped with the shoji fixing piece.

Conventionally, smoke exhaust windows were shipped from the factory with the frame of the screen fixed to the frame with adhesive tape to prevent the screen from opening during transport. However, the method of fixing the screen to the frame with adhesive tape was unreliable, and had the inconvenience of causing the screen to suddenly open when the adhesive tape was removed, resulting in scratches on the screen and leaving behind adhesive tape marks.

In view of the above-mentioned circumstances, the present invention aims to provide a shoji fixing piece that keeps the shoji in a closed position, and a smoke exhaust window.

In order to achieve the above object, the shoji fixing piece according to the invention described in claim 1 comprises a stile engagement portion and a frame engagement portion, the frame engagement portion is spaced apart from the stile engagement portion in the projection direction and is located on the inner side of the stile engagement portion, and when the stile engagement portion is engaged with the outer edge of the visible wall of the stile and attached with the shoji open, the frame engagement portion can rotate freely in the inner and outer circumferential directions with the outer edge of the visible wall of the stile as a fulcrum, and when the shoji is closed, the frame engagement portion climbs over the tip of the door stopper of the frame and is pushed by the visible surface of the door stopper of the frame to rotate to the outer circumferential side, and is hooked on the surface of the door stopper of the frame opposite the shoji, thereby holding the shoji in the closed state.

The smoke exhaust window according to the invention described in claim 2 is characterized by comprising a frame, a shoji screen, and the shoji screen fixing piece described in claim 1 attached to the shoji screen.

The shoji fixing piece according to the invention described in claim 1 comprises a stile engagement portion and a frame engagement portion, the frame engagement portion being spaced apart from the stile engagement portion in the projection direction and located more inward than the stile engagement portion, and when the stile engagement portion is engaged with and attached to the outer peripheral edge of the visible wall of the stile with the shtile open, the frame engagement portion can rotate freely inward and outward with the outer peripheral edge of the visible wall of the stile as a fulcrum, and when the shoji is closed, the frame engagement portion climbs over the tip of the door stopper of the frame and is pushed by the visible surface of the door stopper of the frame, rotating outward and hooking on the surface of the door stopper of the frame opposite the shoji, so that the shoji can be securely held in the closed state simply by closing the shoji.

The smoke exhaust window according to the invention described in claim 2 comprises a frame, a screen, and the screen fixing piece described in claim 1 attached to the screen, so that the screen can be securely held in the closed state simply by closing it.

1A is a side view showing one embodiment of a shoji fixing piece of the present invention, FIG. 1B is a plan view of the same, and FIG. FIG. 2 is a front view from the indoor side showing one embodiment of the smoke exhaust window of the present invention. This is a side view showing the shoji fixing piece attached to the upper frame of the shoji. 11 is a vertical cross-sectional view showing the steps for closing and fixing the shoji screen. FIG. A cross-sectional view showing the steps for closing and fixing the shoji screen. 11A to 11C are vertical cross-sectional views showing the procedure for opening a shoji screen. 1A is a side view showing another embodiment of the shoji fixing piece of the present invention, FIG. 1B is a plan view of the same, and FIG. 8 is a vertical cross-sectional view showing the procedure for opening a shoji screen fixed to a frame by the shoji screen fixing piece shown in FIG. 7.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows an embodiment of a sash fixing piece 3 of the present invention, and Fig. 2 shows an embodiment of a smoke exhaust window of the present invention.
The smoke exhaust window shown in Figure 2 shows the state when it is shipped from the factory, and is equipped with a frame 1, a screen 2 installed within the frame 1, and screen fixing pieces 3, 3 installed on the screen 2. The screen fixing pieces 3, 3 fix the screen 2 to the frame 1 so that it does not open during transportation from the factory to the construction site. This smoke exhaust window is an outward-tilting window in which the screen 2 opens by tilting it outward.

As shown in Figure 2, the frame 1 is made up of an upper frame 9, a lower frame 11, and left and right vertical frames 6, 6, which are all made of aluminum shaped material. As shown in Figure 1(a), the upper frame 9 has a door stop piece 12 that hangs down inside the room beyond the shoji screen 2, a lip groove 13 is formed at the tip of the door stop piece 12, and a twill material 14 is held in the lip groove 13 and provided facing the outside of the room. As shown in Figure 1(b), the vertical frame 6 has a door stop piece 7 that protrudes toward the inner periphery inside the room beyond the shoji screen 2, a lip groove 13 is formed at the tip of the door stop piece 7, and a twill material (not shown) is held in the lip groove 13 and provided facing the outside of the room.

As shown in Figure 2, the shoji screen 2 is constructed by assembling an upper frame 4, a lower frame 15, and left and right vertical frames 16, 16, all made of aluminum shaped material, on all four sides. As shown in Figures 1 and 5, resin end caps 17 are attached to the upper and lower ends of the left and right vertical frames 16. Glass will be installed within the assembled frame, but at the factory shipping stage shown in Figure 2, the glass has not yet been installed. The lower frame 15 of the shoji screen 2 is connected to the lower frame 11 by a hinge (not shown). A damper (not shown) is installed in the space 18 (see Figure 5) between the vertical frame 6 and the vertical frame 16 to bias the shoji screen 2 in the opening direction.
As shown in Fig. 1(a), the upper frame 4 has an outer peripheral edge 19 of the interior wall formed in a crank shape that bends toward the interior and then extends toward the outer peripheral side. A recess 22 is formed on the exterior side of the outer peripheral edge 19.

As shown in Fig. 2, the shoji fixing piece 3 is a set of two, one on the left and one on the right, and the left and right shoji fixing pieces 3, 3 have the same shape that is symmetrical on the left and right. The shoji fixing piece 3 is integrally molded from hard resin, and has a hook-shaped frame engagement part 23 on the outside of the room, as shown in Fig. 1 (a). The frame engagement part 23 has a groove 24 that engages with the outer peripheral edge part 19 of the visible wall of the upper frame 4, and an abutment part 25 that abuts against the bottom surface of the recess 22 of the upper frame 4. Protrusions 26a, 26b for preventing the frame from coming off are formed in the groove 24. The groove 24 is formed with a margin relative to the outer peripheral edge part 19 of the visible wall of the upper frame 4. The present shoji fixing piece 3 is attached to the upper frame 4 so as to be slidable in the longitudinal direction by engaging the groove 24 of the frame engagement part 23 with the outer peripheral edge part 19 of the visible wall of the upper frame 4 from above.
1(a), the shoji fixing piece 3 has a frame engagement portion 31 that protrudes upward and away from the stile engagement portion 23 toward the interior side of the room. The frame engagement portion 31 is located more inward than the stile engagement portion 23, and has a 45° inclined surface 32 at its upper end portion on the interior side. A space 37 is provided between the stile engagement portion 23 and the frame engagement portion 31 to receive the outer peripheral end portion of the door stop piece 12 of the upper frame 9 and the tension material 14.
Furthermore, the shoji fixing piece 3 is provided with opening restriction pieces 33, 33 that extend out to the left and right sides below the frame engagement portion 31. A handle portion 34 is provided extending inward from the outside edge of the underside of the shoji fixing piece 3. Furthermore, a tool insertion hole 35 is provided on the indoor side of the shoji fixing piece 3 facing the outside.

The groove 24 of the frame engagement part 23 of this shoji fixing piece 3 is formed with a margin relative to the outer peripheral edge 19 of the visible wall of the upper frame 4, so that when the frame engagement part 23 is engaged with and attached to the outer peripheral edge 19 of the visible wall of the upper frame 4 with the shoji 2 open, as shown in Figure 3, the frame engagement part 31 can rotate inward and outward with the outer peripheral edge 19 of the visible wall of the upper frame 4 as a fulcrum.

Next, the procedure for closing and fixing the shoji 2 will be explained. First, as shown in Figure 5(a), the shoji fixing pieces 3, 3 are attached to the two left and right positions of the upper frame 4 by engaging the grooves 24 of the frame engagement parts 23 of the shoji fixing pieces 3, 3 from above with the outer peripheral edge 19 of the visible wall of the upper frame 4. At this time, the tip of the opening restriction piece 33 should be positioned on the inner peripheral side of the inner peripheral end of the door stop piece 7 of the vertical frame 6.
Next, as shown in Fig. 4(a), the user places his/her hand on the handle portion 34 of the shoji fixing piece 3 and grasps the upper frame 4 from the inner periphery side to close the shoji 2. By placing his/her hand on the handle portion 34, the frame engagement portion 31 is moved to the inner periphery side.
As the shoji screen 2 is closed, as shown in Figure 4 (b), the inclined surface 32 rubs against the tip of the door stop piece 12 of the upper frame 9, and the frame engagement portion 31 climbs over the tip of the door stop piece 12 of the upper frame 9.
Furthermore, when the shoji screen 2 is closed, as shown in Figure 4 (c), the shoji screen fixing piece 3 is pushed by the visible surface of the door stop piece 12 of the upper frame 4 (the part where the lip groove 13 and the tightness material 14 are provided), and rotates toward the outer periphery with the outer edge 19 of the visible wall of the upper frame 4 as a fulcrum.
Accordingly, as shown in Figure 4 (d), the frame engagement part 31 of the shoji fixing piece 3 gets caught on the surface of the door stop piece 12 of the upper frame 9 opposite the shoji 2, and thus the shoji 2 is fixed to the frame 1 so as not to open. The engagement allowance Y between the frame engagement part 31 and the door stop piece 12 is set to 5 to 10 mm. The frame engagement part 31 is strong enough not to deform, and the engagement allowance Y between the frame engagement part 31 and the door stop piece 12 of the upper frame 9 is also set large enough, so that even if a strong biasing force is applied by the damper, the frame engagement part 31 will not come off the door stop piece 12 and the shoji 2 will not open. The above-mentioned operation of closing the shoji 2 can be performed with the indoor side of the frame 1 laid down on the floor.
After that, as shown in Fig. 5(b), the left and right shoji fixing pieces 3, 3 are slid outward, and as shown in Fig. 5(c), the opening restriction pieces 33 of the shoji fixing pieces 3, 3 are made to face the interior side of the door stop piece 7 of the vertical frame 6. In this way, even if the frame engagement part 31 comes off the door stop piece 12 of the upper frame 9, the opening restriction piece 33 will get caught on the door stop piece 7 of the vertical frame 6, preventing the shoji 2 from opening.

When opening the shoji screen 2 at the construction site, first the left and right shoji screen fixing pieces 3, 3 are opened and the restricting piece 33 is slid inward until it comes off the door stop piece 7 of the vertical frame 6.
Next, as shown in Figure 6 (a), a tool 36 such as a screwdriver is inserted into the tool insertion hole 35 of the shoji fixing piece 3 from the inside of the room, and as shown in Figure 6 (b), force is applied to the inner circumference with the tool 36 to rotate the frame engagement portion 31 of the shoji fixing piece 3 inward.
6(c), the frame engagement portion 31 disengages from the door stop piece 12 of the upper frame 9, and the shoji screen 2 opens. Thereafter, the shoji screen fixing pieces 3, 3 are removed.

7 shows another embodiment of the shoji fixing piece 3 of the present invention. This shoji fixing piece 3 has U-shaped spring pieces 38 facing the outside of the room on both the left and right sides of the inner periphery of the frame engagement part 31. When this shoji fixing piece 3 is attached by engaging the groove 24 of the frame engagement part 23 with the outer periphery edge part 19 of the visible wall of the upper frame 4, the outer end part of the spring piece 38 abuts against the indoor side of the upper frame 4 and the spring piece 38 elastically deforms, so that the frame engagement part 31 of the shoji fixing piece 3 is biased in the direction of rotating toward the outer periphery with the outer periphery edge part 19 of the visible wall of the upper frame 4 as a fulcrum, as shown by the arrow 39 in the figure.
As in the previous embodiment, in this shoji fixing piece 3, the groove 24 of the frame engagement portion 23 is formed with a margin of clearance relative to the outer peripheral edge 19 of the visible wall of the upper frame 4, so that when the shoji 2 is open, the frame engagement portion 31 of the shoji fixing piece 3 can rotate inward and outward directions with the outer peripheral edge 19 of the visible wall of the upper frame 4 as a fulcrum. However, as described above, the biasing force of the spring piece 38 acts to hold the abutment portion 25 in a position in abutment against the bottom surface of the recess 22 in the upper frame 4, making it difficult for the shoji fixing piece 3 to come off the upper frame 4.
In addition, the tool insertion hole 35 of this shoji fixing piece 3 is inclined toward the outer periphery toward the outside of the room.

Fig. 8 shows the procedure for opening the shoji 2 fixed to the frame 1 by the above-mentioned shoji fixing piece 3. When opening the shoji 2, as shown in Fig. 8(a), a tool 36 such as a screwdriver is inserted into the tool insertion hole 35 of the shoji fixing piece 3 from the inside of the room, and as shown in Fig. 8(b), a force is applied to the inner periphery with the tool 36 to rotate the frame engagement part 31 of the shoji fixing piece 3 to the inner periphery, and the frame engagement part 31 is removed from the door stop piece 12 of the upper frame 9. At this time, since the tool insertion hole 35 is provided at an incline toward the outer periphery toward the outside of the room, it is easy to insert the tool 36 into the tool insertion hole 35 even in a smoke exhaust window located at a high place, and it is possible to prevent the tip of the tool 36 from damaging the frame 1, or to prevent the hand from hitting the frame 1 and being injured when the tool 36 suddenly comes out of the tool insertion hole 35.
When the frame engagement portion 31 of the shoji fixing piece 3 comes off the door stop piece 12 of the upper frame 9, as shown in Figure 8 (c), the shoji 2 opens forcefully due to the force of the damper, but the frame engagement portion 31 rotates outward due to the biasing force of the spring piece 38, and the anti-detachment protrusions 26a, 26b provided in the groove 24 of the frame engagement portion 23 firmly hook onto the outer peripheral edge 19 of the visible wall of the upper frame 4, preventing the shoji fixing piece 3 from coming off and falling due to the recoil when the shoji 2 opens.

As described above, the shoji fixing piece 3 comprises a stile engagement portion 23 and a frame engagement portion 31, and the frame engagement portion 31 is spaced from the stile engagement portion 23 in the front direction and is located more inward than the stile engagement portion 23. When the stile engagement portion 23 is engaged with and attached to the outer circumferential edge 19 of the visible wall of the stile (upper stile) 4 with the shoji 2 open, the frame engagement portion 31 can freely rotate inward and outward directions with the outer circumferential edge 19 of the visible wall of the stile 4 as a fulcrum. When the shoji 2 is closed, the frame engagement portion 31 climbs over the tip of the door stop piece 12 of the frame (upper frame) 9 and is pushed by the visible surface of the door stop piece 12 of the frame 9, rotating outward and hooking onto the surface of the door stop piece 12 of the frame 9 opposite the shoji 2, so that the shoji 2 can be securely held in a closed state simply by closing the shoji 2.
In addition, this shoji fixing piece 3 has a handle portion 34 extending toward the inner periphery of the frame, and the handle portion 34 is hooked from the inner periphery of the frame 4 when closing the shoji 2. Therefore, by hooking the handle portion 34 when closing the shoji 2, the frame engagement portion 31 is held in a rotated position toward the inner periphery, and the shoji 2 can be closed smoothly.
In addition, the shoji fixing piece 3 has a tool insertion hole 35, and by inserting a tool 36 into the tool insertion hole 35 and applying force, the frame engagement part 31 rotates inward and disengages from the door stop piece 12 of the frame 9, which improves the workability when opening the shoji 2. If the tool insertion hole 35 is provided at an incline toward the outer periphery toward the outside of the room, the workability when opening the shoji 2 is further improved.
Furthermore, this shoji fixing piece 3 is freely slidable in the longitudinal direction of the frame 4, and has an opening restriction piece 33 that faces the surface of the door stop piece 7 of the vertical frame 6 opposite the shoji 2 when it is slid outward, so that even if the frame engagement portion 31 comes off, the opening restriction piece 33 gets caught on the door stop piece 7 of the vertical frame 6, preventing the shoji 2 from opening.
If the shoji fixing piece 3 is provided with a spring piece 38 which presses against the indoor side surface of the upper frame 4, the shoji fixing piece 3 can be prevented from coming off and falling due to the reaction when the shoji 2 is opened.
By using the present shoji fixing piece 3, the trouble of sticking and peeling off adhesive tape is eliminated, and no traces of adhesive tape are left behind. The shoji fixing piece 3 can be used repeatedly, making it economical.

This smoke exhaust window comprises a frame 1, a screen 2, and the screen fixing pieces 3, 3 as described in claim 1 attached to the screen 2, so that the screen 2 can be securely held in the closed state simply by closing the screen 2.
In addition, because the smoke exhaust window is equipped with a damper that biases the screen 2 in the opening direction when it is shipped from the factory, there is no need to install a damper at the construction site, which reduces the burden of work at the construction site. In addition to the damper, an operator device such as a pulley for opening and closing the screen can also be installed at the time of shipping from the factory.

The present invention is not limited to the above-described embodiment. The shape, material, and mounting position of the shoji fixing piece can be changed as appropriate depending on the way the shoji opens and whether or not a damper is included. The cross-sectional shape and material of the frame and stile can be changed as appropriate. The way the shoji opens is not limited to tilting outward, but it can also be tilting inward or pushing out (opening by rotating to the outside of the room with the upper side as a fulcrum).

1 Frame 2 Shoji 3 Shoji fixing piece 4 Upper frame (frame)
9 Upper frame (frame)
12 Doorstop piece 19 Outer peripheral edge of stile facing wall 23 Stile engaging part 31 Frame engaging part

Claims (2)

A shoji fixing piece that is characterized by having a stile engagement portion and a frame engagement portion, the frame engagement portion being spaced apart from the stile engagement portion in the projection direction and located on the inner periphery side of the stile engagement portion, and when the stile engagement portion is engaged with the outer peripheral edge of the visible wall of the stile and attached with the shoji screen open, the frame engagement portion can rotate freely in the inner and outer periphery directions with the outer peripheral edge of the visible wall of the stile as a fulcrum, and when the shoji screen is closed, the frame engagement portion rides over the tip of the door stopper of the frame and is pushed by the visible surface of the door stopper of the frame to rotate to the outer periphery side and hook on the surface of the door stopper of the frame opposite the shoji screen, thereby holding the shoji screen in the closed state. A smoke exhaust window comprising a frame, a screen, and the screen fixing piece according to claim 1 attached to the screen.

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