JPH025231B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to improvements in area gratings.

[Prior art and its problems]

Screen gratings are usually attached to the outside of windows etc. for the purpose of crime prevention. For this reason, conventional surface grids have a structure in which the entire grid is fixed integrally by welding, rivets, or the like.

However, in the event of an earthquake, fire, or other emergency evacuation, the conventional grid structure may become an obstacle to escape.

[Technical problem of the invention]

The present invention was made in view of the above circumstances, and
The purpose of this is to create a surface grid that is strong and durable and cannot be removed from the outside during normal times, but at the same time can be quickly and easily removed from the inside in the event of an emergency evacuation. This is what we do.

[Structure of the invention]

That is, the present invention provides a surface lattice in which a plurality of standers are attached between frame bodies, wherein the frame body is fitted into a fixed frame body via a lock mechanism and the frame body is detachably attached to the fixed frame body, and Alternatively, it is a surface lattice in which a cylindrical protective cover surrounding the locking mechanism is provided protruding from the indoor side surface of the fitting frame.

In the present invention, the type of surface lattice is not particularly limited. Examples include a vertical lattice-type surface lattice with a plurality of standers attached between the upper and lower frames, a frame-attached vertical lattice-type surface lattice with a frame attached to this surface lattice, and a louver-type surface lattice with louvers attached to the frame. . Therefore, the stand as referred to in the present invention includes not only what is called a stand but also a louver.

Examples will be explained below.

Embodiment 1 FIG. 1 shows a vertical lattice type surface lattice according to the present invention.
This surface lattice has a plurality of standers 3 between the upper and lower frames 1 and 2.
... is installed, so that part A can be removed in the event of an emergency evacuation. That is, the upper and lower frames 1 and 2 are
As shown in FIG. 2, it is composed of fixed frames 4, 4 and fitting frames 5, 5. The fitting frames 5, 5 have a U-shaped cross section, and have their grooves facing indoors. Furthermore, a male threaded portion 6 is provided protruding from the indoor side surface. On the other hand, the fixed frames 4, 4 are formed into a square tube shape by combining members having a U-shaped cross section.
The central portion is formed of only one of the sections, into which the fitting frames 5, 5 are fitted so that the whole has a rectangular cylindrical shape. Furthermore, the fixed frame 4 has a male screw portion 6 of the fitting frame 5.
A through hole (not shown) is formed at a location corresponding to the hole, and a rectangular cylindrical protective cover 7 that surrounds the through hole is provided protruding from the indoor side surface. This protective cover 7 has a gap as small as possible between the screen lattice and a window (not shown) on the indoor side, so that it is impossible to insert a hand into the protective cover 7 through this gap.

When the fitting frames 5, 5 are fitted into the fixed frames 4, 4, the male screw portions 6, 6 of this surface grid penetrate the fixed frames 4, 4 and protrude into the protective cover 7. In this state, as shown in FIGS. 3 and 4, the female screw portion 8 is screwed to fix the fitting frames 5, 5 to the fixed frames 4, 4. Conversely, by removing the female threaded portion 8, it becomes possible to remove the fitting frame 5 to the outside.

Embodiment 2 FIG. 5 is a planar grid showing another embodiment of the present invention. The fixed frames 11, 11 of the surface lattice are formed into a rectangular tube shape by a pair of members having a U-shaped cross section, but the center portion thereof is formed by only one member having a U-shaped cross section,
The groove is facing indoors. In addition, notches 12, 12 are formed at the ends, and a sixth cutout is formed on the back surface.
As shown in the figure, the lock piece receiving part 1 has a U-shaped cross section with a flange.
3 and 13 are installed. On the other hand, the fitting frame 1
4 and 14 are formed of U-shaped cross sections, with their grooves facing outdoors, and are connected to the fixed frames 11 and 1.
It has a structure that is fitted into the center part of 1. Notches 15 are provided at both ends of the fitting frames 14, 14.
15 are formed respectively, and the fixed frames 11, 1
The guide through hole 1 is paired with the notches 12, 12 of 1.
6 (see Figure 6). Further, on the surfaces facing indoors of the fitting frames 14, 14, protective covers 1 are provided at both ends to surround the above-mentioned notches 15, 15.
7 and 17 are provided to protrude in the longitudinal direction.
Further, lock piece receiving parts 18, 18 (lock piece receiving parts 1
3 and 13), and rectangular plate-shaped lock pieces 19, 19 are movably inserted therein. There is an operation knob 2 on the indoor side of the lock piece 19.
0, and this operating knob 20 projects into the protective cover 17 from the guide through hole 16.

Then, after fitting the frame bodies 14, 14 into the fixed frames 11, 11, when the operation knobs 20, 20 are moved in the direction of the fixed frames 11, 11, the lock pieces 19, 19 will be attached to the fixed frames 11, 11. body 11, 11
The fitting frames 14, 14 are fixed to the fixed frames 11, 11 (in the state shown in FIG. 6). Conversely, when the operating knob 20 is moved in the direction of the fitting frames 14, 14, it becomes possible to remove the fitting frames 14, 14 inward.

Embodiment 3 FIG. 8 shows a structure in which the protective cover 7 of Embodiment 1 is covered with a cap 31. This cap 31 has a rectangular cylindrical shape, has one end open and the other end closed, and a drawer hole 32 is formed at the other closed end.
This cap 31 is inserted inside the protective cover 7 and covers the opening of the protective cover 7. The length of the cap 31 is longer than the distance between the window or the like adjacent to the grid and the tip of the protective cover 7, so that the cap 31 cannot be removed when the window is closed.

Embodiment 4 FIGS. 9 to 13 show a locking mechanism different from that of the first embodiment. This locking mechanism is fitted into the frame 5.
A hanging member 41 with a flange and a U-shaped cross section is provided, and a through hole 42 is provided in the fixed frame 4 corresponding to this hanging member 41, and the hanging member 41 is inserted through the through hole 42. It protrudes toward the indoor side. Further, an insertion member 43 is inserted into the locking member 41 protruding from the through hole 42 to fix the fitting frame 5 to the fixed frame 4.

With this locking mechanism, the fitting frame 5 can be removed from the fixed frame 4 by removing the insertion member 43.

Embodiment 5 FIGS. 14 to 17 show a different locking mechanism from Embodiment 1 and a different cap from Embodiment 3. This locking mechanism has a bolt 51 protruding from the fixed frame 4, a through hole (not shown) corresponding to the bolt 51 in the fitting frame 5, and the bolt 51 is passed through the hole. It protrudes toward the indoor side. Further, an annular member 52 is attached around the bent bolt 51. This annular member 52 has a flat plate 53 attached to the surface that comes into contact with the fitting frame 5, and when the center bending bolt 51 is bent, the annular member 52 connects with the bending axis of the center bending bolt 51 and the surface of the fitting frame 5. The fitting frame 5 is interposed between
is fixed to the fixed frame 4.

In addition, the center bent bolt 51 is erected, and the annular member 52 is
By removing the fitting frame 5, the fixed frame 4
It can be removed from

On the other hand, the cap of this embodiment is attached to the protective cover 7 via a hinge 54 so as to be openable and closable.
Side plates 56, 56 are provided on both sides of the protective cover 5 so that the side plates 56, 56 enter into the protective cover 7.

〔Effect of the invention〕

According to this invention, by providing a locking mechanism, it is fixed integrally in normal times and serves the purpose of crime prevention, but by releasing the lock, a part of the surface grating can be removed, allowing emergency escape. becomes possible. Additionally, if a portion of the grid is removed, it will be convenient for taking items in and out of the window, cleaning the window glass, and other benefits.

Furthermore, this locking mechanism is protected by a protective cover, and is constructed so that it cannot be released from outside. For this reason, a part of the surface grid cannot be removed by someone else from the outside during normal times, and it is safe from the viewpoint of crime prevention.

Furthermore, according to the first embodiment shown in FIGS. 1 to 4, the locking mechanism is tightened by screws, so the structure is simple.

Furthermore, according to the second and fourth embodiments, the locking mechanism is of a sliding type, so that it is easy to operate. Furthermore, since the fitting frame is removed inward, there is no need to provide a seam on the outside, and the appearance is good.

The locking mechanism of the fifth embodiment is of a lever type and is similarly easy to operate.

Note that the lock mechanism is not limited to the above embodiment, and other mechanisms may be used. Further, the protective cover may be of any type as long as it surrounds the lock mechanism.

On the other hand, according to the third embodiment, since the protective cover is covered with a cap, it is no longer possible to insert a hand or a tool into the protective cover from the outside, thereby improving safety. In particular, since the cap is inside the protective cover, it is difficult to remove it from the outside, and even if you try to remove it, the gap between it and the window is narrow, so it gets stuck on the way, making it difficult to remove the cap. It's safe. To remove the cap from indoors, open the window, put your hand through the drawer hole, and pull it out.

Although the cap shown in Example 5 has a structure that can be opened from the outside, the gap between the cap and the window is narrow.
Since it can only be opened halfway, and the side plate narrows the opening of the protective cover, it is impossible to insert hands or tools into the protective cover from the outside. Therefore, the crime prevention effect is improved.

Although the cap shown in Examples 4 and 5 has a structure that simply covers the protective cover, the cap may also have a function of fixing a locking mechanism. For example, the side surface of the cap of Embodiment 4 may be partially protruded inward or a protruding member may be provided so as to come into contact with the insert member, thereby preventing the insert member from moving. It is also possible to provide a plate material between the side plates of the cap of Embodiment 5 to hold the bent bolt in a bent state.

[Brief explanation of drawings]

1 to 4 show a surface lattice according to the present invention (Embodiment 1), FIG. 1 is a front view of the surface lattice, FIG. 2 is a perspective view with a part of the surface lattice removed, and FIG. 3 is a front view of the surface lattice. 4 is an enlarged front view showing the locking mechanism of the surface grating, and FIG. 4 is an enlarged sectional view of the locking mechanism. 5 to 7 show a surface lattice according to the present invention (Embodiment 2), FIG. 5 is a perspective view with a part of the surface lattice removed, FIG. 6 is an enlarged front view, and FIG. 7 is an enlarged view. FIG. FIG. 8 is an enlarged perspective view of a main part of a surface lattice (Embodiment 3) according to the present invention. 9 to 13 show a surface grid (Embodiment 4) according to the present invention, FIG. 9 is an enlarged perspective view of the lock mechanism, FIG. 10 is an enlarged front view of the lock mechanism,
Figure 11 is a sectional view taken along line XI-XI in Figure 10, Figure 12 is a sectional view taken along line XII-XII in Figure 10,
FIG. 3 is a perspective view of the insert member. 14 to 17 show a surface grid (Embodiment 5) according to the present invention, FIG. 14 is an enlarged perspective view of the main part, FIG. 15 is an enlarged front view of the lock mechanism, and FIG. 16 is FIG. 15. FIG. 17 is a sectional view taken along the line - of FIG. 15. 1, 2... Upper and lower frame bodies, 3... Standers, 4, 11...
...Fixed frame body, 5, 14... Fitting frame body, 6...
Male thread, 7, 17... Protective cover, 8... Female thread, 12, 15... Notch, 13, 18... Lock piece receiver, 16... Guide through hole, 19... Lock piece, 20... Operation Knob, 31...Cap, 3
2...Drawer through hole, 41...Latching member, 42
...Through hole, 43 ... Insert member, 51 ... Center-bent bolt, 52 ... Annular member, 53 ... Flat plate, 5
5... Cover plate, 56... Side plate.

Claims (1)

[Scope of Claims] 1. A surface lattice in which a plurality of stands are attached between frames, the frame being fitted into a fixed frame via a locking mechanism, and the frame being detachably attached to the fixed frame; Alternatively, the fitting frame is a surface lattice with a cylindrical protective cover surrounding the locking mechanism protruding from its indoor side surface. 2 The locking mechanism consists of a male threaded part that is attached to the indoor side of the fitting frame and protrudes into the protective cover through the fixed frame, and a male threaded part that is screwed into the male threaded part within the protective cover to fix the fitting frame. The surface lattice according to claim 1, further comprising a female screw portion fixed to the frame. 3. The protective cover is provided to protrude in the longitudinal direction at both ends of the fitting frame, and each of the fixed frame and the fitting frame has an end surrounded by the protective cover cut out to form a guide through hole. A lock piece receiving portion is formed on the back surface of the end portion, and the lock mechanism is provided movably inserted between the lock piece receiving portions of the fixed frame and the fitting frame and protrudes from the same lock piece. The surface grid according to claim 1, further comprising an operation knob protruding into the protective cover from the through hole. 4. The locking mechanism consists of a through hole formed in the fitting frame, a latching member that is attached to the fixed frame and has a substantially U-shaped cross section and protrudes indoors from the fitting frame through the through hole, and the fitting member. 2. The panel grid according to claim 1, further comprising an insertion member that is inserted into the latching member protruding from the frame to fix the frame to the fixed frame. 5. The locking mechanism consists of a through hole formed in the fitting frame, a bent bolt attached to the fixed frame that passes through the hole and protrudes indoors from the fitting frame, and a bolt that surrounds the bent bolt. Claim No. 1, comprising: an annular member interposed between the fitting frame and the bending shaft of the center-folding bolt to fix the fitting frame to the fixed frame when the center-folding bolt is attached and bends in the middle; The surface lattice described in item 1. 6. The surface lattice according to claim 1, wherein the protective cover is covered with a cap. 7. The surface lattice according to claim 6, wherein the cap has a cylindrical shape with one end open and the other end closed, and a drawer through hole is formed at the other closed end. 8. The cap is attached to the protective cover opening via a hinge so as to be openable and closable, and includes a cover plate that covers the protective cover opening and side plates provided on both sides of the cover plate. The surface lattice described.