JPH108854A - Lattice locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device that can open a lattice positively for escape even in a mentally agitated state at the time of emergency such as the time of generation of a fire. SOLUTION: A lattice 3 is removable from a fixed member 6 through a locking device 7, and the locking device 7 is provided with a shaft 9 slidable in relation to the fixed member 6, and a fitting 10 rigidly fixed to a lateral frame 5. A large diameter part 9b engaged with the fitting 10 is slide in relation to a small diameter part 9a coming off the fitting 10 by operating a first lever 11 provided in the opened position of one sliding window, or a second lever positioned in the opened position of the other sliding door. At the time of emergency, either the first lever 11 or the second lever can be operated by opening either sliding door, so that the locking device 7 can be released to make the lattice 3 positively removable at the time of emergency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for removing a grid provided on the outdoor side of two sliding windows in an emergency.

[0002]

2. Description of the Related Art A screen grid is attached to the outside of a window for the purpose of crime prevention or the like. However, in a fire or the like, the screen grid becomes an obstacle and cannot escape to the outside of the room, which may cause an unfortunate situation. For this reason, as a technology to open the surface grid in an emergency,
The one disclosed in Japanese Utility Model Laid-Open No. 59-13557 is known. In this technology, hinges are attached to the left and right sides of the screen grid to make it one-sided, a locking mechanism is provided on the other side, and in the event of emergency, the sliding window is opened and the lever is operated to unlock, and the face grid is opened. It has an open structure.

[0003]

However, in the prior art, a locking mechanism was provided only on one of the left and right sides.
The lever can be operated only by opening one of the two sliding windows. In other words, even if the other sliding window is opened in an emergency, it is not possible to open the surface grid, and after noticing it, it is necessary to open one sliding window and operate the lever. Such time loss in an upset state may result in increased fear and impede safe escape.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and enables a surface grid to be reliably opened and escaped even in a state of mental upset in an emergency. To provide a locking device.

[0005]

The locking device of the present invention employs the following technical means. According to a first aspect of the present invention, there is provided a locking device for a surface lattice, comprising: a fixing member fixed to the outdoor side of two sliding windows; a shaft slidably supported by the fixing member and having a small diameter portion and a large diameter portion. , With a fitting that engages with the large diameter portion and does not engage with the small diameter portion,
A surface grid provided with a slide preventing means for preventing sliding with respect to the fixing member, and a large-diameter portion which is provided on the one sliding window side of the fixing member and which slides the shaft to form a large-diameter portion with respect to the metal fitting. A first lever for switching between the large-diameter portion and the small-diameter portion, the first lever being provided on the other slide window side of the fixing member, and sliding the shaft to switch the large-diameter portion and the small-diameter portion with respect to the metal fitting. And

According to a second aspect of the present invention, in the surface lattice locking device of the first aspect, the shaft is slid when the first lever is operated in the unlocking direction, and the second lever is unlocked in the unlocking direction. The sliding direction of the shaft at the time of operation is different.

According to a third aspect of the present invention, in the locking device for a surface lattice according to the first or second aspect, when the first lever and the second lever are both in a locked state, the rotation of the first lever is controlled by the rotation of the first lever. The end on the first lever side of the rod that transmits to the shaft coincides with the notch provided in the fixing member, and the end on the second lever side of the rod that transmits the rotation of the second lever to the shaft, When the first lever is unlocked, the end of the rod on the first lever side is disengaged from the notch when the first lever is unlocked. The first lever can rotate to slide the shaft, and the sliding of the shaft causes the rod of the second lever to move, thereby causing the second rod of the second lever to move.
When the end on the lever side cannot match the notch, the unlocking operation of the second lever cannot be performed, and the second
When the lever is unlocked, the end of the rod on the side of the second lever is disengaged from the notch due to the rotation of the second lever, the second lever can be rotated, and the shaft is slid. The slide also causes the rod of the first lever to move, so that the end of the rod of the first lever on the first lever side cannot match the notch, and the unlocking operation of the first lever cannot be performed. It is characterized by.

According to a fourth aspect of the present invention, in the locking device for a surface lattice according to any one of the first to third aspects, the large-diameter portion and the small-diameter portion provided on the shaft are connected via a tapered portion. It is characterized by being connected.

[0009]

According to the present invention, the metal fitting is engaged with the large-diameter portion to perform locking, and the surface lattice is fixed to the fixing member. To release the locking of the surface lattice, one of the sliding windows is opened, and the first lever or the second lever is operated to slide the shaft. Then, the small-diameter portion slides to the fitting position and is unlocked. Thereafter, the surface lattice is released by extruding the surface lattice and removing the small-diameter portion from the metal fitting.

Thus, the first lever and the second lever for sliding the shaft into the two sliding windows respectively.
With the lever, no matter which sliding window you open,
The lock can be released and the grid can be removed. For this reason, even in a state of being mentally swayed in an emergency, it is possible to reliably open the surface lattice and escape from the window.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on examples. FIGS. 1 to 5 show a first embodiment of the present invention. FIG. 1 is a perspective view showing a locking device for a surface grid, and FIG. 2 is a perspective view showing a locking device for a surface grid. FIG. 3 is a perspective view of the surface grating.

Building (eg, house, office, store, etc.)
Two sliding windows 1 attached to the opening of the wall of
On the outside of 2, a security grid 3 is attached. As shown in FIG. 3, the surface lattice 3 has a large number of vertical frames 4.
And two horizontal frames 5. Each of the two horizontal frames 5 is detachable from a fixing member 6 fixed to the outside of the building via a locking device 7. Is provided.

The fixing members 6 extend in the horizontal direction corresponding to the two horizontal frames 5, and each of the fixing members 6 has a cylindrical portion 8 into which the horizontal frame 5 having a U-shaped cross section is fitted from the front side. Is provided. A shaft 9 shown in FIGS. 1 and 2 is arranged inside the tubular portion 8. The shaft 9 includes a small-diameter portion 9a having a small diameter in the center, and a large-diameter portion 9b having a large diameter provided on both sides of the small-diameter portion 9a.
b slides into the cylindrical portion 8. That is, the shaft 9 is slidably supported on the fixed member 6.

The large-diameter portion 9b and the small-diameter portion 9a are smoothly connected without a step through the tapered portion 9c.
The large-diameter portion 9b is provided in the 0 round hole 10a (described later) so as to be smoothly guided. That is, it is provided so that locking can be easily performed from unlocking.

On the other hand, a metal fitting 10 for locking is fixed inside the horizontal frame 5 of the surface lattice 3. This metal fitting 10
A round hole 10a substantially matching the outer diameter of the large diameter portion 9b is provided inside, and an opening 10b substantially matching the outer diameter of the small diameter portion 9a is provided on the open side of the horizontal frame 5. This metal fitting 10
As shown in FIG. 2, two shafts 9 are mounted on one horizontal frame 5 so as to engage with the two large-diameter portions 9b when the shaft 9 is in the locking position.

The cylindrical portion 8 of the fixing member 6 has a notch 8 into which a metal fitting 10 provided on the horizontal frame 5 of the surface lattice 3 is fitted.
a is provided, and the metal fitting 10 is fitted into the notch 8 a to constitute a slide prevention means.
Is prevented from sliding.

On one slide window 1 side of the fixing member 6,
A first lever 11 for switching the large diameter portion 9b and the small diameter portion 9a with respect to the metal fitting 10 by sliding the shaft 9 is provided. The first lever 11 hits one of the sliding windows 1 and is prevented from rotating unless one of the sliding windows 1 is opened. That is, the lever length L of the first lever 11 is provided to be longer than the length W from the fixing member 6 to one of the sliding windows 1 (L> W).

When the first lever 11 is rotated from the locked state to the unlocked state, the first lever 11 is pulled to the window side and then rotated to the outside of the window, and coincides with the fixing member 6 in the locked state. .
As means for transmitting the rotation operation of the first lever 11 to the shaft 9, a rod 12 connected to the first lever 11 and the shaft 9 is provided.

The end 1 of the rod 12 on the first lever 11 side
1a is provided so as to be slidable with respect to the first lever 11, and the slide allowable length is equal to the length of sliding of the shaft 9 from the locked state to the unlocked state. The first lever 11 is provided with a spring 13 so that the first lever 11
The end 11 a on the lever 11 side is drawn toward the center of rotation of the first lever 11.

Further, the first lever 11 and a second
When the levers 14 are both locked, the end 11 a of the rod 12 on the first lever 11 side is
When the first lever 11 is released from the fixing member 6 for unlocking, the first lever 11
An end 11a on the lever 11 side goes out of the notch 6a.

On the other slide window 2 side of the fixing member 6,
A second lever 14 for switching the large diameter portion 9b and the small diameter portion 9a with respect to the metal fitting 10 by sliding the shaft 9 is provided. The second lever 14 also hits the other slide window 2 and is prevented from rotating unless the other slide window 2 is opened.

The second lever 14 is also pivoted out of the window after being pulled toward the window when rotating from the locked state to the unlocked state, and the first lever 11 is operated in the unlocking direction. The sliding direction of the shaft 9 at the time of operation is opposite to the sliding direction of the shaft 9 when the second lever 14 is operated in the unlocking direction. Further, the rotation operation of the second lever 14 is performed by the shaft 9.
And a rod 12 connected to the second lever 14 and the shaft 9.

The end 1 of the rod 12 on the second lever 14 side
4a is provided so as to be slidable with respect to the second lever 14, and the slide allowable length is equal to the length of the shaft 9 sliding from the locked state to the unlocked state. Second lever 1
A spring 13 is provided on 4, and pulls an end 14 a of the rod 12 on the second lever 14 side toward the center of rotation of the second lever 14.

When the second lever 14 is locked together with the first lever 11, the end 14a of the rod 12 on the second lever 14 side is fixed to the fixing member 6 as shown in the enlarged view of the main part of FIG.
Is provided so as to match the notch 6a provided in the second
When the lever 14 is lifted from the fixing member 6 for unlocking, the end 14a of the rod 12 on the second lever 14 side comes out of the notch 6a.

[Operation of Embodiment] Next, the operation of this embodiment will be described. Normally, that is, when the locking device 7 is locked, FIG.
When the first lever 11 and the second lever 14 are both aligned with the fixing member 6, as shown by the solid line in FIG.
The large-diameter portion 9b is located inside the
Does not come off. That is, the surface grating 3 does not come off the fixing member 6.

When a fire or the like occurs and the user escapes from the window, it is necessary to unlock the locking device 7 so as to remove the surface lattice 3. In this procedure, first, one of the sliding windows 2 is opened, and the first lever 11 or the second lever 14 is opened.
And pivot outward. When the first lever 11 or the second lever 14 is turned by 90 ° or more, the shaft 9 slides as shown by a two-dot chain line in FIG. The metal fitting 10 comes off (unlocking).

Thereafter, when the surface grating 3 is extruded, the cylindrical portion 8 is pushed out.
As shown in FIG. 4, the other locking device 7 (the lower locking device 7 in FIG. 4) functions as a hinge, and the surface lattice 3 rotates and comes off, as shown in FIG. 4. When the upper and lower locking devices 7 are unlocked, the surface grid 3 is completely released as shown in FIG.

The first lever 11 or the second lever 1
When one of the members 4 is rotated, the shaft 9 slides, and the end 14a of the rod 12 of the other lever is displaced from the position of the notch 6a, so that the other lever cannot be triggered.

[Effects of the embodiment] As shown in the above operation, the first lever 11 and the second lever 14 for sliding the shaft 9 of the locking device 7 are provided in each of the two sliding windows. Regardless of which sliding window is opened, the lock can be released and the surface lattice 3 can be removed. For this reason, even in a state of being mentally swayed in an emergency, it is possible to reliably open the surface lattice 3 and escape from the window.

The first lever 11 or the second lever 1
When one of the levers 4 is rotated, the other lever cannot be raised. That is, since the two levers are provided so as not to be operated at the same time, even in a state of being mentally swayed in an emergency, there is no malfunction and hardly break down.

[Second Embodiment] FIGS. 6 and 7 are explanatory views of the rotation of the plane grating 3 according to the second embodiment. In the above-described embodiment, an example has been described in which the two horizontal frames 5 of the surface grid 3 are detachably provided, and the surface grid 3 is removed by rotation or completely removed. However, as shown in FIG. 6 and FIG.
Alternatively, the hinge 20 may be provided on the upper side, and the horizontal frame 5 remote from the hinge 20 may be provided detachably by the locking device 7.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a locking device of a surface lattice (first embodiment).

FIG. 2 is a top view of the locking device for the surface lattice (first embodiment).

FIG. 3 is a perspective view of a surface grating (first embodiment).

FIG. 4 is an explanatory view of a rotation of a plane grating (first embodiment).

FIG. 5 is an explanatory view of removing a surface grating (first embodiment).

FIG. 6 is an explanatory view of a rotation of a plane grating (second embodiment).

FIG. 7 is an explanatory view of a rotation of a surface lattice (second embodiment).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 One sliding window 2 The other sliding window 3 Surface lattice 6 Fixing member 6a Notch 7 Locking device 9 Shaft 9a Small diameter part 9b Large diameter part 9c Tapered part 10 Metal fitting 11 First lever 11a End of rod on first lever side 12 Rod 14 Second lever 14a End of rod on second lever side

Claims (4)

[Claims] 1. A fixing member fixed to the outdoor side of two sliding windows, a shaft slidably supported by the fixing member and having a small-diameter portion and a large-diameter portion; A surface lattice that is provided with a fitting that engages with the small diameter portion and does not engage with the small diameter portion, and that has a slide prevention unit that prevents sliding with respect to the fixing member; A first lever configured to slide the shaft to switch between the large-diameter portion and the small-diameter portion with respect to the metal fitting; a first lever provided on the other sliding window side of the fixing member to slide the shaft; And a second lever for switching between the large diameter portion and the small diameter portion with respect to the metal fitting. 2. The locking device according to claim 1, wherein the shaft is slid when the first lever is operated in the unlocking direction, and the shaft is moved when the second lever is operated in the unlocking direction. A surface lattice locking device characterized by being different from a sliding direction of a shaft. 3. The locking device according to claim 1, wherein when the first lever and the second lever are both locked, the rod transmitting the rotation of the first lever to the shaft is provided. The end on the first lever side coincides with a notch provided on the fixing member, and the end on the second lever side of a rod for transmitting the rotation of the second lever to the shaft is also provided on the fixing member. When the first lever is unlocked, the first lever side end of the rod is disengaged from the notch due to the rotation of the first lever when the first lever is unlocked. Can rotate to slide the shaft, and by sliding the shaft, the rod of the second lever also moves, and the end of the rod of the second lever on the second lever side can coincide with the notch. As a result, the unlocking operation of the second lever becomes impossible, and when the unlocking operation of the second lever is performed, the end of the rod on the side of the second lever by the rotation of the second lever is removed from the notch. The second lever can be rotated to rotate and slide the shaft, and the slide of the shaft causes the rod of the first lever to move, thereby causing the end of the rod of the first lever on the first lever side to move. A locking device for a plane lattice, wherein the locking of the first lever cannot be performed due to the inability to match the notch. 4. The locking device according to claim 1, wherein the large-diameter portion and the small-diameter portion provided on the shaft are connected via a tapered portion. Surface grid locking device.