JPS6122158Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a blinding board device that allows for free ventilation, in which blinding boards are mounted on each vertical frame such as a lattice, fence, handrail, etc. with gaps between them. This invention relates to a blind plate device such as a grid of this kind that can be mounted firmly and stably with one touch. That is, as shown in FIGS. 1 and 2A of the embodiment, each of the hollow metal vertical frames 2 having a substantially rectangular cross section, which is suspended in rows on a metal horizontal frame 1, has a drawstring-shaped cross section in the front longitudinal direction. Each of the recesses R is formed in each recess, and each semi-transparent synthetic resin blindfold plate 3 has a substantially half-crank shape in plan and a group of vertical stripes M carved on the plate surface. Each retainer t having a bifurcated cross section is pressed and engaged from the front, and one side inner surface 3' and front inner side 3'' of the bent base of each blindfold plate 3 are connected to one side surface 2' of the vertical frame 2.
The blindfold plate 3 is mounted in close contact with the front face 2'' with a gap left between the front and rear of each blindfold plate 3.

FIG. 2B shows another embodiment of the present invention, in which recesses R' having a purse-string cross section are formed not only in the front but also on one side of each vertical frame 2 mounted in a row on a horizontal frame 1. A retainer t' having a bifurcated cross section and protruding from the side surface of the bent base of the blind plate 3 is engaged in the recess.

Most of the conventional blinding plate devices of this type that allow for free ventilation are either simply clamping the vertical bars of the lattice with clamping pieces protruding from the back of the blinding board, or the vertical grooves formed in the vertical bars are used to attach the blindfolds. Insert pieces formed or attached to the ends of the boards are inserted into the frame, and recently there are also systems in which a part of the blind board is simply glued to the vertical beam.

However, although the first type is easy to install, the blind plate tends to swing left and right or up and down in the event of wind and rain, and there is a risk of it falling off. Since the pieces are inserted or pulled out one by one from the upper or lower end of the vertical beam, there is a disadvantage that it requires a lot of work especially if the vertical beam is long. There is also a sadness that distorts it. However, the third adhesive type has disadvantages such as being difficult to remove and attach when replacing a new blinding plate, or easily peeling off during wind and rain.

However, in this case, as mentioned above, the recesses formed in the vertical direction on the front and/or side surfaces of the vertical frame have a deep and wide cross-section in the shape of a purse string, and the synthetic resin retainers intervening in these recesses have a bifurcated cross-section. When attaching a blind plate to a vertical frame, it is simply engaged from the front or side, and the engagement part is a two-pronged retainer that tightly engages in a tension-like manner in a deep and wide recess. Coupled with the close contact between the inner surface of the bent base of the blindfold board and the frame, the blindfold board can be installed extremely firmly and stably, and therefore will not come off accidentally even in the event of wind or rain. When replacing the cover, it also has the convenience of being easily removed by simply pulling it forward or sideways, and is extremely advantageous in terms of installation and operation as a mounting device for this type of ventilated blind plate. This is a practical idea.

[Brief explanation of the drawing]

Figure 1 is an external front view of the lattice with a blind plate provided with the present invention, Figure 2 A is an enlarged cross-sectional view of the main part of the same, and B
is an enlarged cross-sectional view of another embodiment. 1 is a horizontal frame, 2 is a vertical frame, 3 is a blind board, R is a recess, and t is a tie.

Claims (1)

[Scope of utility model registration request] Recesses R with a purse-string cross section are formed in the front and/or side lengthwise directions of the vertical frames 2 mounted in rows on the horizontal frame 1, and in these recesses, the front face at the bent base of each blindfold plate 3 formed in a planar half-crank shape. And/or each retainer t with a bifurcated cross section protruding from the inside of the side surface is engaged to bring the inner surface of the bent base of each blindfold plate 3 into close contact with the outer surface of each vertical frame 2, and between the front and back of each blindfold plate 3. A device for attaching blind boards to grates, fences, handrails, etc. that leave gaps.