JPS5846239Y2 - Support device for roll-up screen door - Google Patents

Description

[Detailed description of the invention] This invention relates to a support device for a roll-up screen door that is configured to be installed in the hollow upper frame or slot of an aluminum sash. This support device was devised for the purpose of providing a support device that can be easily attached and adjusted the initial elasticity of the coil spring for winding.

If you install a roll-up screen door inside Satsushi's Kamizusa or Mume,
It looks good and does not spoil the beauty of Satsushi, but it has the disadvantage that it is difficult to put on and take off and maintain.

The present invention provides a support device for a roll-up screen door that can be installed inside a screen door or the like and is easy to attach, detach, and maintain.

Hereinafter, a supporting device will be described for an embodiment in which a roll-up screen door is installed in a so-called R-sash with a curved upper part of the frame.

The same is true when wearing a rectangular satsushi on the top or a square satsushi on a mumu.

FIG. 1 shows a so-called R-sash in which an upper frame 1 is curved in an arc, a blind 2 is provided, and the lower part thereof is rectangular, and a roll-up screen door is installed in the blind 2.

Figures 2 and 3 show the structure of the blind 2 with a built-in roll-up screen door.

The mesh 2 has a hollow box-like cross section that is large enough to accommodate a winding drum 4 wrapped with a flexible mesh 3 for a winding screen door, and the front (indoor side) is open and closed with a lid plate 5. It is designed to be able to be removed.

The lid plate 5 has an upper edge 5a formed into a hook-like cross section, and has a hook-shaped cross section.
It is hung from the front surface of the opening by hooking it into the groove 2a on the upper edge of the opening, and can be fixed to or removed from the bracket 7 which is attached to the left and right sides of the lower part indiscreetly with small screws 6. There is.

A bracket 9 having the shape shown in FIG. 5 is attached to the short frame 8 on one side connected to the blind 2, and bears one shaft 4a protruding from both ends of the winding drum 4.

The bracket 9 is made by bending a steel plate into a convex shape as shown in Figure 5.
A hole 10 is bored in the corner of the interior side of the protrusion, a hole 11 is made in the lower front edge of the hole 10, a vertical elongated hole 12 is made above the hole 10, and a lock with a tapered lower part is provided in the rear surface of the protrusion. A hole-like hole 13 is bored.

The large hole 13a at the top of the hole 13 is formed at the same height as the hole 10, and the small hole 13b is formed at the same height as the hole 11.

As shown in FIGS. 2 and 6, a worm gear 14 is formed on the shaft 4a at a portion inserted into the bracket 9.

Reference numeral 15 denotes a worm that meshes with the worm gear 14, has a head 15a at its front end that engages a screwdriver, and connects two narrow diameter portions 15b and 15C to the holes 11 and 13b of the bracket 9.
is engaged with and rotatably supported by the bracket 9.

That is, when the worm 15 is inserted into the hole 10.13H and pushed down with the narrow diameter portions 15b and 15C aligned with the holes 11 and 13b, the worm 15 is rotatably supported at a fixed position by the holes 11 and 13b. .

The shaft 4a of the winding drum is inserted from the front into the bracket 9 from Llo, and is positioned at the innermost part of the hole 10 by engaging the worm gear 14 with the worm 15. It can be suppressed by

The retainer 16 has a cross-sectional shape, and is formed with a tapped hole into which a screw 17 inserted into the elongated hole 12 is screwed.
When the metal fitting is moved downward along the elongated hole 12 and tightened, the retaining metal fitting is fixed to the bracket 9, and the edge of the metal fitting 16 comes to prevent the shaft 4a from moving forward.

18 is a thrust bearing of the winding drum 4. Although not shown, the shaft protruding from the other end of the winding drum 4 is also supported by a convex bracket in which a hole 10.12 is formed symmetrically to the bracket 9.

It is sufficient to provide the worm 15 only on one shaft 4a, and since the worm 15 is not required in this portion, the hole 11.13 is not necessary.

The winding drum 4 is equipped with a coil spring (not shown) like a normal winding blind mechanism, and is adapted to wind up the net 3 whose one end is fixed to the winding drum 4.

The net 3 is brought out from the gap 2b at the bottom of the mesh 2, and a synthetic resin edge material 20 is attached to the lower end.

The edge material 20 opens and closes around the lower thin wall portion 20a, and one piece has a thin protrusion 20b at the base.
A groove 20C with a narrow entrance is formed in the other piece, and the net 3
The rim material 20 is fixed to the net 3 by sandwiching the lower end thereof and fitting the protrusion 20b and the groove 20C.

This edge material 20 moves up and down with both ends loosely engaged with grooves 21 provided in the short frame 8, and has a projection 20d protruding forward that serves as a handle for pulling down or pulling up the net 3.

A spring 22 is provided at the lower part of the short frame 8 so that when the edge material 20 is lowered, it is pressed against the edge of the groove 21 and held at the lower edge position.

Since the structure is as described above, by removing the machine screw 6 from the bracket 7, the cover plate 5 can be lifted up and removed from the blind, and the worm 15 is rotated by engaging the screwdriver with the head 15a. By rotating the shaft 4a of the winding drum 4, the initial elasticity of the winding spring can be adjusted to be strong or weak, thereby adjusting the strength with which the net is wound.

If the screw 17 is loosened and the screw 17 is moved to the upper end of the elongated hole 12 together with the holding fitting 16, the prevention of movement of the shaft 4a by the holding fitting 16 is released and the shaft 4a is taken out (from Llo forward) and the edge material 20 can be opened, the net 3 can be pulled up from the gap 2b, and the winding drum 4 can be taken out from the mesh 2.

As described above, the support device of the present invention allows the winding drum to be easily stored within the sash frame, and the initial elasticity of the screen door winding coil spring can be adjusted with a simple operation, and the winding drum for repair can be easily stored. The barrel can be taken out freely, which is useful for practical purposes.

[Brief explanation of drawings]

Fig. 1 is a schematic front view of the R sash equipped with the retractable screen door of the present invention, Fig. 2 is a sectional view taken along line AA in Fig. 1, and Fig. 3 is the same <
4 is a sectional view taken along line CC, FIG. 5 is a perspective view of the bracket 9, and FIG. 6 is a front view of the end of the winding drum. 2: Meshless, 3: Net, 4: Winding trunk, 4a: Shaft, 5: Lid plate, 6
: Small rice, 8: Short frame, 9 nibracket, 10.11:
Hole, 12: Long hole, 13: Lock-shaped hole, 13a: Large hole, 1
3b: Small hole, 14: Worm gear, 15: Worm, 1
5a: Head, 15b, 15C: Thin diameter part, 16: Holding metal fitting,
17: Waji.

Claims (1)

[Scope of utility model registration request] A hole 10 is formed in the indoor corner of a box-shaped protrusion formed by bending a steel plate into a convex shape, and a hole 1 is formed in the indoor side surface of the protrusion.
A hole 11 is bored in the lower edge of 0, a vertical elongated hole 12 is made above it, a lock-like hole 13 with a narrowed bottom part is made in the surface of the protrusion opposite to the chamber, and a large hole in the upper part is made. 13 A is bored at the same height as the hole 10, and a small hole 13b is bored at the same height as the hole 11. A bracket 9 is attached to one end of the satsushi-style kimono or mume 2, which opens on the indoor side and is opened and closed by the lid plate 5. It is attached to the short frame 8 in contact with the frame 8, has a head 15a at the front end to be engaged with a screwdriver, and has two small diameter parts 1.
5b, 15C formed on the worm 15 is attached to the narrow diameter portion 15b.
, 15C, the flexible net 3 is engaged with the holes 11 and 13b of the bracket and rotatably supported by the bracket 9.
A shaft 4a, which protrudes from the winding drum 4 that winds up the winding drum 4 and forms a worm gear 14, is engaged with the worm 15, inserted into the hole 10, and is screwed into the screw 17 inserted into the elongated hole 12 within the protrusion to prevent forward movement of the shaft 4a. A holding fitting 16 is provided to be movable and fixed within the range of the elongated hole 12, and a worm is interposed in the short frame touching the other end of the upper or lower end of the hole 12 with a similar bracket symmetrical to the bracket 9, or a worm is inserted into the hole 10. , long hole 12 and retainer 16. A support device for a roll-in screen door that supports another shaft only with a screw 17.