JPH0336717Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a device for attaching a retractable screen such as an insect screen or a sunshade sheet to a winding shaft.

BACKGROUND ART A wrap-around screen has been developed in which a screen such as an insect repellent net or a sunshade sheet can be wrapped around a winding shaft and stored.

Japanese Utility Model Application Publication No. 56-63795 discloses a structure for attaching the screen to the winding shaft in such a winding type screen. This invention consists of clamping and fixing the base edge of the screen along the longitudinal direction of a part of the outer periphery of the winding shaft with a presser plate which is screwed.

Problem to be solved by this invention The problem with this invention is that the entire length of the base edge of the screen cannot be uniformly sandwiched between the winding shaft and the holding plate. In other words, the presser plate,
Multiple screws that are fixed to the winding shaft through the base edge of the screen are screwed together at appropriate intervals in the longitudinal direction while passing through the base edge of the holding plate and the screen. The screen is firmly held between the winding shaft and the holding plate, but if it is separated from the screw, the screen will not be firmly held.

Therefore, the load generated by the weight of the screen itself or by winding or extending the screen acts locally around the screw, causing the screen to bend or causing damage to the area around the screw. In some cases, the screen was torn.

Means for Solving the Problems The retractable screen mounting device according to this invention has grooves continuous in the longitudinal direction on either the outer circumferential surface of the winding shaft or the surface of the holding plate facing the outer circumferential surface of the winding shaft. is recessed, and a protruding strip that is continuous in the longitudinal direction is provided on the other side, and the base edge of the screen is sandwiched between the outer circumferential surface of the winding shaft and the holding plate, and the protruding strip and the protruding strip are They are fitted with the base edge of the screen sandwiched between them, and the base edge of the screen is clamped and fixed.

Since almost the entire length of the base edge of the screen in the longitudinal direction is sandwiched between the grooves and the protrusions, the load generated by the weight of the screen itself or by winding or extending the screen is localized. This prevents the screen from being bent or damaged.

Embodiment This invention will be described in detail below based on an embodiment shown in the drawings.

In the figure, reference numeral 1 denotes a winding shaft, which is approximately cylindrical and has a longitudinally continuous mounting flat surface 2 on a portion of its outer surface. Similarly, a portion of the outer surface that is the back surface of the flat mounting surface 2 forms a back flat surface 3 that also continues in the longitudinal direction.

At both left and right ends of the flat mounting surface 2 in the width direction, two parallel recessed grooves 4 are provided that are continuous in the longitudinal direction.
Between the two grooves 4, 4, a plurality of screw holes 5 having internal threads installed on the inner peripheral surface are bored at appropriate intervals in the longitudinal direction.

A double-sided adhesive tape 6 is adhered to the entire length of the mounting flat surface 2. This double-sided adhesive tape 6 is used to temporarily fix the screen.

On the double-sided adhesive tape 6, the base edge of an insect repellent net 7 made of synthetic fiber or glass fiber, which is a screen, is adhered. The insect screen 7 has a rectangular shape, and one base edge is attached to the tape 6, and reinforcing materials 8, such as vinyl tape, are attached to the left and right edges that are perpendicular to the base edge along the edge. It is welded.

The press plate 9 is an elongated plate body, and on the surface 10 facing the winding shaft 1, protrusions 11, 11 that are continuous in the longitudinal direction are protruded in parallel from the left and right ends in the width direction.
A plurality of screw insertion holes 12 are bored at appropriate intervals in the longitudinal direction between the protrusions 11, 11.

A presser plate 9 is fixed to the outer periphery of the winding shaft 1 by sandwiching the double-sided adhesive tape 6 and the base edge of the insect screen 7 between the mounting flat surface 2 of the winding shaft 1. At this time, the protrusions 11, 11 of the presser plate 9 are fitted into the grooves 4, 4 of the winding shaft 1, and the base edge of the insect screen 7 is inserted between the protrusions 11, 11 and the grooves 4, 4. It is clamped along its entire length. The screw 13 inserted through the screw insertion hole 12 of the presser plate 9 passes through the mesh of the insect repellent net 7, penetrates the double-sided adhesive tape 6, and is screwed into the screw hole 5 of the winding shaft 1, and the presser plate 9 is wound. It is fixed to axis 1.

The flat back surface 3 of the winding shaft 1 is provided to hold the winding shaft 1 in a stable state without accidentally rolling when the presser plate 9 is attached with the screws 13.

The winding shaft 1 configured as described above is housed in the case 14. The case 14 has a pair of side plates 1
5, 15 and upper and lower plates 16, 17 to form a rectangular cross section, and a rotating part case 18, at the left and right ends.
18 is installed. Left and right side plates 1 of the lower plate 17
An opening 19 that is long in the longitudinal direction is formed on one side of the openings 5 and 15. Winding shaft 1 is case 14
The left and right ends are rotatably supported by rotating shafts attached to the rotating part cases 18, 18, respectively, so that they can rotate. A sprocket-shaped rotary disk (not shown) is housed in one of the rotary unit cases 18. As shown in FIG. The rotating disk rotates together with a rotating shaft passing through the rotating part case 18, and the rotation of the rotating disk is transmitted to the winding shaft 1. The rotary disk is rotated by rotating an endless ball chain 22 hung around its outer periphery. The insect screen 7 can be rolled in and stretched out through the opening 19 of the lower plate 17.

Guide frames 20, 20 are attached to the lower surface of the case 14 adjacent to both ends of the opening 19 so as to face downward. Guide grooves 21, 21 that are continuous in the vertical direction are provided on the surfaces of the guide frames 20, 20 that face each other.
is recessed. The left and right edges of the insect screen 7 to which the reinforcing members 8, 8 are welded can move up and down within the guide grooves 21, 21. A locking tool 23 for hooking the ball chain 22 is attached to the lower part of the guide frame 20 on the ball chain 22 side among the guide frames 20, 20. When winding up the insect screen 7 or wanting to hold it midway, the ball chain 22 is hooked onto the locking tool 23 to prevent rotation of the winding shaft 1.

A lower stile 24 is attached to the base edge of the lower end of the insect screen 7 for overlapping.

Although this invention has the above-described configuration, other embodiments such as those described below can be considered.

In the above embodiment, the winding shaft 1 is provided with the grooved line 4, and the holding plate 9 is provided with the protruding line 11, but conversely, the winding shaft 1 may be provided with the protruding line 11, and the holding plate 9 may be provided with the grooved line 4. .

Alternatively, the winding shaft 1 may have a cylindrical shape with the entire outer periphery having an arcuate surface, and the presser plate 9 may be a plate having an arcuate cross section that tightly abuts the outer peripheral surface of the winding shaft 1.

Furthermore, it is also possible to provide one protrusion 11 and one groove 4.

Effects of the invention As described above, this invention has grooves continuous in the longitudinal direction on either the outer circumferential surface of the winding shaft or the surface of the holding plate facing the outer circumferential surface of the winding shaft, and on the other side, grooves are formed in the same direction in the longitudinal direction. A continuous protruding strip is provided to protrude, and the base edge of the screen is sandwiched between the outer circumferential surface of the winding shaft and the holding plate, and the base edge of the screen is sandwiched between the concave strip and the protrusion. The base edge of the screen is clamped and fixed by being fitted in this state.

Since approximately the entire length of the base edge of the screen in the longitudinal direction is firmly sandwiched between the grooves and the protrusions, the load generated by the weight of the screen itself or by winding or extending the screen is reduced. They are distributed approximately equally in the longitudinal direction, so that no part of the screen is stretched and no sagging occurs.

In addition, the load will not be concentrated only on the part where the screws are screwed together, and the screen will not be torn.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of this invention; Fig. 2 is a longitudinal sectional view of a winding shaft with a screen attached to it; Fig. 2 is an exploded perspective view thereof; and Fig. 3 is a perspective view of a screen door in which this invention is implemented. be. 1... Winding shaft, 2... Flat mounting surface, 4... Concave strip, 5... Screw hole, 6... Double-sided adhesive tape, 7...
...Insect net, 8...Reinforcement material, 9...Press plate, 10...
...Facing surfaces, 11... Protrusion, 12... Screw insertion hole, 13... Screw, 14... Case, 22... Ball chain, 23... Locking tool, 24... Lower stile.

Claims (1)

[Claims for Utility Model Registration] Winding in which the base edge of the screen 7 is clamped and fixed along the longitudinal direction on the outer circumferential surface 2 of the winding shaft 1 around which the screen 7 is wound with a presser plate 9 which is fixed with screws 13. In the type screen mounting device, a concave strip 4 continuous in the longitudinal direction is provided on either the outer circumferential surface 2 of the winding shaft 1 or the surface 10 of the holding plate 9 facing the winding shaft outer circumferential surface 2, and the grooves 4 are provided on the other side. Similarly, protrusions 11 that continue in the longitudinal direction are protruded, and the base edge of the screen 7 is sandwiched between the outer circumferential surface 2 of the winding shaft 1 and the presser plate 9, and the grooves 4 and the protrusions 11 are arranged between them. A roll-up type screen mounting device characterized in that the base edge of the screen 7 is clamped and fixed by fitting with the base edge of the screen 7 sandwiched therebetween.