JPH06299767A - Honeycomb screen - Google Patents

Abstract

PURPOSE:To prevent the excess of the pitch of an upper cell over the pitch of a lower cell and, at the same time, to prevent the incursion of insects, etc., inside the cells from openings of the side ends of them in the case a honeycomb screen is lowered. CONSTITUTION:A screen 14 is so formed that a cylindrical cell 18 having a hexagonal section is connected in up and down directions, and it is capable of expansion by winding and unwinding the other end of a rising and falling cord 30 having one end connected to a bottom rail 16 on and from a rotatable take-up drum 40 by a control cord 22 incorporated in a head box 12. Expansible and pleated tapes 20 formed of mountain sections 24 and valley sections 26 alternately in succession are mounted to both side ends of the screen 14. Projections 28 projecting the valley sections 26 to the opposite side to the mountain sections 24 are formed in the pleated tapes 20. The projections 28 are inserted inside the cell 18 from openings 33 on both sides thereof and are fitted between opposed bending sections 34 formed in an intermediate position in up and down directions of the cell 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honeycomb screen.

[0002]

2. Description of the Related Art A conventional honeycomb screen is formed by vertically connecting tubular unit cells having a hexagonal cross section, and the upper end of the screen is connected to a head box and the lower end is connected to a bottom rail. is there. Both ends of the screen are open.

[0003]

However, in the above-mentioned conventional honeycomb screen, when the screen is expanded, the cells above the screen are expanded more than the cells below due to the weight of the screen and the bottom rail. There is a problem that it ends up. Further, since the side end portion of the cell is opened, insects and the like enter from here and there is a problem that it is difficult to remove it. The present invention is intended to solve such a problem.

[0004]

According to the present invention, expansion and contraction of cells is regulated at both end portions of a screen, and at the same time, a pleated tape which can be expanded and contracted integrally with the cells is attached.
The above problems are solved. That is, the honeycomb screen of the present invention includes a head box (12), a stretchable screen (14) formed by vertically connecting tubular cells (18) having a hexagonal cross section, and a screen (14). A bottom rail (16) connected to the lower end of the head, and one end connected to the bottom rail (16) and the other end inserted through the screen (14) and introduced into and out of the head box (12) freely The cord (30) is provided with pleated tapes (20) fitted to both end portions of the screen (14), and the pleated tape (20) has peaks (24) and valleys (26). ) And the pleated tape (20) have an expandable and contractible shape, and the pleated tape (20) has a valley (26) in which a protrusion () is formed on the opposite side of the peak (24). 8) are formed, the protruding portion of the pleated tape (20) (2
8) is inserted inside from the openings (33) on both sides of the cell (18), and is fitted between the opposed bent portions (34) formed at an intermediate position in the vertical direction of the cell (18). , Is characterized.

[0005]

When the screen is lowered, the lifting cord is pulled out from the head box. This causes the bottom rail to descend, so that the screen sequentially extends from the uppermost cell to the lowermost cell. At this time, the pleated tape is also sequentially expanded from the upper end to the lower end along with the expansion of the cells. The cell cannot extend by narrowing the width between the bent portions more than the width of the protruding portion of the pleated tape fitted between the bent portions. As a result, the upper cells do not extend more than the lower cells due to the weight of the cells and the bottom rail, and the pitch of all cells can be kept constant. Further, since the opening of the cell is covered with the pleated tape, insects and the like can be prevented from entering the inside of the cell from here.

[0006]

EXAMPLE FIG. 1 shows an overall view of a honeycomb screen 10 to which the present invention is applied. The upper end of the screen 14 is attached to the lower end of the head box 12. A bottom rail 16 is attached to the lower end of the screen 14. The screen 14 has a cross-section 6 as shown in FIG.
A rectangular (honeycomb-shaped) tubular cell 18 is vertically foldable by connecting predetermined sides in a vertical direction, that is, it is vertically expandable and contractable. Pleated tapes 20 to be described later are attached to both end portions of the screen 14. An operation code 22 is derived from the right end portion of the head box 12 in FIG. The screen 14 can be expanded and contracted by operating the operation code 22.

FIG. 2 is a perspective view showing a state in which the pleated tape 20 is removed from the side end portion of the screen 14. The pleated tape 20 has peaks 24 and valleys 26 alternately formed in the up-down direction. In the valleys 26, a protrusion 28 formed by folding the pleated tape 20 toward the screen 14 is formed. ing. An elevating cord insertion hole 3 through which an elevating cord 30 described later can be inserted into the protruding portion 28.
2 is formed. Projection 2 of pleated tape 20
8 is inserted into the inside of the cell 18 through the opening 33, and can be fitted between the opposing bent portions 34 formed at the intermediate position in the vertical direction of the cell 18.

FIG. 3 is a diagram showing the inside of the head box 12 and the screen 14. The upper end of the screen 14
Head box 1 by screen stop plate 36
It is attached to the lower end of 2. Bottom rail 1 at one end
The other end of the lifting cord 30 connected to 6 is inserted into the head box 12 through the lifting cord insertion hole 32 of the pleated tape 20 and the screen stop plate 36, and is provided inside the head box 12. Guided by the cord guide 38, the winding guide 40 is wound and unwound. The winding drum 40 is
The head box 12 is rotatable by the drum receiver 42.
It is installed inside. A rotary shaft 44 is connected to the winding drum 40 so as to be rotatable integrally with the winding drum 40. The rotating shaft 44 is a lifting device 46 to which the operation cord 22 is connected.
Can be driven to rotate.

Next, the operation of this embodiment will be described.
First, when raising the screen 14, the operation cord 22 led out from the lower side of the head box 12 shown in FIG. 4 is pulled downward. As a result, the rotary shaft 44 rotates rightward in FIG. 4, so that the winding drum 40 also rotates integrally with the rotary shaft 44, and the lifting cord 30 is wound up.
As a result, the bottom rail 16 rises, so that the bent portion 34 sequentially projects from the lowermost cell 18 of the screen 14 toward the uppermost cell 18, and the cell 18 is folded. At the same time, the pleated tape 20 is also folded with the ridges 24 protruding laterally. This allows
The screen 14 rises. Next, screen 14
When lowering the head box 12 shown in FIG.
The operation cord 22 led out from above is pulled downward. As a result, the rotary shaft 44 rotates leftward in FIG. 4, so that the winding drum 40 also rotates integrally with the rotary shaft 44.
Unwind the lifting cord 30. As a result, the bottom rail 16 descends, so that the bent portion 34 is sequentially arranged from the uppermost cell 18 to the lowermost cell 18 of the screen 14.
Is expanded, and the cell 18 is expanded. Since the protruding portion 28 of the pleated tape 20 is inserted into the bent portion 34 of the cell 18, the pleated tape 20 also extends as the cell 18 extends. When the pleated tape 20 is completely extended, the width between the facing bent portions 34 of the cell 18 becomes equal to the width of the protruding portion 28. The cell 18 cannot be expanded by narrowing the width between the opposing bent portions 34 to be narrower than the width of the protruding portion 28, so that the expansion of the cell 18 is also completed, and thus the descent of the screen 14 is completed. At this time,
As shown in FIGS. 1 and 4, since the pitch between the bent portions 34 of the upper and lower cells 18 is equal to the pitch between the upper and lower protruding portions 28 of the fully extended pleated tape 20,
All cells 18 extend the same length. In addition, since the pleated tape 20 is completely extended, the cell 18
The opening 33 is covered with the pleated tape 20.

[0010]

According to the present invention, pleated tapes that expand and contract integrally with the cells are attached to both side ends of the screen, and protrusions of the pleated tapes are fitted between the openings of the cells and the bent portions thereof. Thereby, the width between the bent portions can be regulated by the protruding portion. Accordingly, when the screen is lowered, the widths between the bent portions of all the cells can be made the same, so that the pitch of all the cells can be kept constant. Further, since the opening of the cell can be covered with the pleated tape, it is possible to prevent insects and the like from entering the inside from here.

[Brief description of drawings]

FIG. 1 is an overall view of a honeycomb screen embodying the present invention.

FIG. 2 is a perspective view showing a state in which a pleated tape is removed from a side end portion of a screen.

FIG. 3 is a diagram showing the inside of a head box and a screen.

FIG. 4 is a side view of the honeycomb screen.

[Explanation of symbols]

 10 Honeycomb Screen 12 Headbox 14 Screen 16 Bottom Rail 18 Cell 20 Pleated Tape 24 Mountain 26 26 Valley 28 Projection 30 Elevating Cord 33 Opening 34 Bent

Claims (1)

[Claims] 1. An expandable / contractible screen (14) formed by vertically connecting a head box (12) and a tubular cell (18) having a hexagonal cross section, and connecting to a lower end of the screen (14). The bottom rail (16) is connected to the bottom rail (16), and the other end of the head box (1) is inserted through the screen (14).
2) Lifting cord (30) that can be freely inserted into and removed from the inside
And a pleated tape (2) on both end portions of the screen (14).
0) are fitted together, and the pleated tape (20) has a ridge (24) and a valley (2).
6) has a continuously expandable and contractible shape, and the pleated tape (20) has a protrusion (26) at the valley (26) that protrudes to the opposite side from the peak (24). (28) is formed, and the protrusions (28) of the pleated tape (20) are inserted into the inside of the openings (33) on both sides of the cell (18), and the cells (18) are vertically intermediate. A honeycomb screen, characterized in that the honeycomb screens are fitted between the facing bent portions (34) formed at the positions.