JPH08312271A - Movable rail for use in screen opening/closing device for opening in building - Google Patents

Abstract

PURPOSE: To provide a movable rail for use in a screen closable device for an opening an a building, that can be manufactured easily at low cost and is so formed as to be easily attached to a screen and not easily removed. CONSTITUTION: A sawtoothed irregular part 52 having a sharp irregular surface at its depth side is provided on one inner surface of a movable rail main body 5 having an approximately U-shaped cross section. A sawtoothed irregular part 72 having a sharp irregular surface at its base side is provided on one side of a screen gripping member 7 which is pushed into the U-shaped groove of the movable rail main body 5 to grip a screen 1. The movable rail main body 5 is engaged with the screen gripping member 7 so as to hold the screen 1 in a locked state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable crosspiece attached to the tip of a screen in a screen opening / closing device for a building opening, such as a folding or roll type insect screen door or a blind.

[0002]

2. Description of the Related Art Conventionally, in a screen opening / closing device for a building opening such as a screen door, a movable bar attached to the front end of the screen is sandwiched between a pair of movable bar halves, and the screen is held at several places. It is common to fix the screen to the tip of the screen by screwing, but such a movable bar requires not only a large number of parts but also a screw hole in the movable bar itself. It requires processing, which incurs an extra cost. Further, when the movable bar is attached to the screen, a troublesome work of screwing several points of the movable bar with screws is required, and moreover, there is a possibility that the screws may easily come off the screen. .

[0003]

SUMMARY OF THE INVENTION The technical problem of the present invention is that a movable screen opening / closing device for a building opening has a structure that can be easily manufactured at low cost, is easy to attach to the screen, and does not easily come off. To provide a cross.

[0004]

In order to solve the above problems, the movable bar in the building opening screen opening / closing device of the present invention comprises a movable bar body having a substantially U-shaped cross section, and a U-shaped groove of the movable bar body. And a screen holding member that holds the screen between the inner surface of the movable rail main body and the inner surface of the movable rail main body. By forming a saw-toothed uneven portion that clamps the screen in a retaining state by engaging with, the saw-toothed uneven portion of the movable bar body has an uneven surface that is steeper on the inner back side than on the inlet side. The saw-toothed concavo-convex portion of the screen holding member has a concavo-convex surface that is steeper on the base end side than on the tip end side.

[0005]

With the movable bar in the screen opening / closing device for a building opening having the above-mentioned structure, the screen pinching member is pushed in with the tip of the screen inserted into the U-shaped groove of the movable bar body, and The screen can be easily attached to the tip of the screen by sandwiching the screen between the inner side surface and one side surface of the screen sandwiching member, and moreover, one inner surface of the movable crosspiece main body and one side surface of the screen sandwiching member. In addition, by forming a saw-toothed uneven portion that sandwiches the screen in a retaining state by interlocking with each other, the sawtooth-shaped uneven portion of the movable crosspiece body, the uneven surface that is steep on the inner back side compared to the inlet side. And the saw-toothed concavo-convex portion of the screen holding member has a concavo-convex surface that is steeper on the base end side than on the tip side. It is easy to attach to the movable bar body, but since the saw-toothed irregularities of the movable bar body and the screen pinching member mate with each other, the movable bar body does not fall off when the screen pinching member comes off the movable bar body. Can be deterred. Further, since it is simply configured by the movable rail body and the screen holding member, it can be manufactured at a very low cost.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a movable beam in a building opening screen opening / closing device according to the present invention will be described in detail below with reference to the drawings.

1 and 2 show an embodiment in which the movable crosspiece in the screen opening / closing device for a building opening of the present invention is applied to a wind-up type insect screen door. A winding box (not shown) attached to the upper part of the section is provided, and one end of the screen 1 constituting the insect repellent net is attached to the winding shafts (not shown) supported at the left and right ends of the box, and the screen 1 is wound. The screen 1 is wrapped around the take-up shaft, and both ends of the screen 1 are slidably supported in the opening / closing direction by guide rails (not shown). An opening for leading out the screen 1 is provided at the lower part of the box. The movable bar 3 is attached to the leading end of the screen 1 that is provided and led out.

The movable rail 3 is composed of a movable rail main body 5 and a screen holding member 7, and the movable rail main body 5 is
As shown in FIG. 3, a synthetic resin such as vinyl chloride is molded into a substantially U-shaped cross-section, and a saw-toothed concavo-convex portion 52 whose inner side is steeper than the inlet side is formed on one inner surface thereof. Further, a chamfered portion 53 that is gently inclined from the inlet side to the inner back side is provided at the inner edge of the tip end on the inlet side on the other side facing the uneven portion 52. As shown in FIG. 4, the screen holding member 7 is made of a synthetic resin such as vinyl chloride similar to the movable rail body 5, and has a sawtooth on one side surface that is steeper on the base end side than on the tip side. The concave-convex portion 72 is formed, and a chamfered portion 73 that is gently inclined from the distal end side to the proximal end side is provided at the tip edge portion on the concave-convex portion 72 side.

When the movable bar 3 having the above construction is attached to the tip of the screen 1, as clearly shown in FIG.
The chamfered portion 73 of the screen holding member 7 is brought into contact with the screen 1 in a state where the tip portion of the screen 1 is inserted into the U-shaped groove inside 54 of the movable rail body 5, and the other portions of the screen holding member 7 are Side 75
Is brought into contact with the chamfered portion 53 of the movable rail main body 5, and then the screen holding member 7 is pushed inward in the movable rail main body 5, thereby forming the sawtooth-shaped irregularities 52 in the movable rail main body 5. The saw-toothed concavo-convex portions 72 of the screen holding member 7 bite each other with the screen 1 sandwiched therebetween, and the screen 1 can be securely held in a retaining state.

At this time, it is assumed that the saw-toothed concavo-convex portion 52 of the movable rail main body 5 has a concavo-convex surface whose inner side is steeper than the inlet side, and the saw-toothed concavo-convex portion 72 of the screen holding member 7 is located at the tip side. Since the base end side has a steep concave-convex surface as compared with the above, it is easy to attach to the screen 1, but the saw-tooth-shaped concave-convex portions 52 and 72 of the movable crosspiece main body 5 and the screen holding member 7 are respectively.
Are engaged with each other, so that the screen pinching member 7 is disengaged from the movable bar main body 5 to cause the movable bar 3 to move.
Can be prevented from dropping.

The movable bar 3 in the screen opening / closing device for a building opening having the above structure is simply composed of the movable bar main body 5 and the screen holding member 7, so that the number of parts is smaller than that of the conventional movable bar. Can be manufactured at low cost, and the screen holding member 7 is pushed into the U-shaped groove inside 54 of the movable rail main body 5 so that one side inner surface of the movable rail main body 5 and one side surface of the screen holding portion 7. The screen 1 can be easily attached to the front end of the screen 1 by a simple work of sandwiching the screen 1 between them.

The saw-toothed concavo-convex portion 5 shown in FIGS. 3 and 4 is used.
The angle α of the steep surface of 2,72 is preferably 20 to 35.
The angle β, γ shown in FIGS. 3 and 4 is preferably 20 degrees.
It is desirable to set the angle to ˜35 degrees, more preferably 25 to 30 degrees.

The material of the movable rail 1 is not limited to the above-mentioned synthetic resin such as vinyl chloride, but may be made of metal such as aluminum. The screen clamping member 7 is made of a different material, that is, one of the movable crosspiece body 5 and the screen clamping member 7 is made of a lightweight synthetic resin such as vinyl chloride, and the other is used to stretch the screen 1. It can also be formed from a metal or the like having a sufficient weight.

The above-mentioned movable crosspiece is not limited to the roll-up type roll screen door in the above-mentioned embodiment, but is attached to the tip of the screen in the accordion-type openable / closable screen opening / closing device by pleating. be able to.

[0015]

As described above in detail, according to the movable crosspiece in the screen opening / closing device for a building opening of the present invention, it can be easily manufactured at a low cost, and moreover, it can be easily attached to the screen. Moreover, it does not easily come off.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a movable rail is attached to a net in a building opening / closing screen opening / closing apparatus according to the present invention.

FIG. 2 is an enlarged side view of the relevant part.

FIG. 3 is an enlarged side view showing the movable rail body.

FIG. 4 is an enlarged side view showing the screen holding member.

FIG. 5 is an explanatory view showing a mode in which a screen holding member is pushed into the movable rail body.

[Explanation of symbols]

 1 Screen 3 Movable Rail 5 Movable Rail Main Body 7 Screen Clamping Member 52, 72 Sawtooth Concavo-convex portion 54 U-shaped groove inside

Claims (1)

[Claims] 1. A movable rail attached to the tip of a screen of a screen opening / closing device installed in a building opening, the movable rail main body having a substantially U-shaped cross section, and the inside of the U-shaped groove of the movable rail main body. And a screen holding member that holds the screen between the inner surface of the movable rail main body and the one side surface of the movable rail main body and the one side surface of the screen holding member. By forming a sawtooth-shaped uneven portion that sandwiches the screen in a retaining state by engaging, the sawtooth-shaped uneven portion in the movable crosspiece main body has an uneven surface that is steeper on the inner back side than the inlet side, The sawtooth-shaped uneven portion in the screen holding member has an uneven surface that is steeper on the base end side than on the tip side.
A movable rail in a screen opening / closing device for a building opening, which is characterized in that