JP2794448B2 - Emergency entrance shoji external handle device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICABILITY As shown in FIG. 2, the present invention relates to a shoji screen which is installed at a part of a window opening of a building so as to be able to open and close as an emergency entrance for firefighting activities or the like. The present invention relates to an external handle device provided for opening 1 from the outdoor side.

2. Description of the Related Art (1) The Building Standard Law stipulates that an emergency entrance for firefighting activities, etc., be provided in a section where the height of a building is 3 stories or more and 31 m or less above the ground.

When entering the building in the event of an emergency such as a fire, the emergency entrance fitted with thin glass allows people to enter and exit if the glass is broken. However, there is a risk of injury from broken glass. Also, recently, since strong and thick glass is often used, it is difficult to break the glass itself.

(2) Recently, an open-closed sliding door has been installed at a previously prepared emergency entrance, and an external handle device prepared for opening the sliding door from the outside of the door belongs to a publicly known manner (Japanese Utility Model Publication No. 62-62). -36936). As shown in FIG. 11, the handle is provided on the inner and outer surfaces of the shoji a which can be opened and closed.
b and c are protruded, and the locking mechanism d can be locked or unlocked by these. That is, the shoji screen a can be opened by operating the internal handle b from the indoor side and by operating the external handle c from the outdoor side.

According to the conventional external handle device described above, the external handle c protrudes from the outer surface of the shoji screen a. Although the external handle c itself is small, it has a problem that the appearance of a beautifully finished building becomes unexpectedly unsightly and impairs the design.

Also, since the external handle c is exposed on the outer surface of the building,
For those who see this, there is a psychological anxiety that opening the shoji a and opening it easily into the room if the external handle c is operated, which is not desirable from the viewpoint of crime prevention. Is an issue to be addressed.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an external handle device improved to a configuration in which the presence of the external handle is not clearly visible on the outer surface side of the building.

Means for Solving the Problems As means for solving the problems of the prior art described above, an external handle device for a shoji at an emergency entrance according to the present invention is a preferred embodiment shown in FIGS. 1 to 10 of the drawings. As shown in the figure, in an external handle device for opening the emergency entrance by unlocking the locking mechanism of the emergency entrance shoji 1 from the outdoor side, it is equivalent to cutting a part of the outer surface side of the shoji frame 1a. The external handle 2 having a shape is rotatably attached to a portion corresponding to the cutout portion in such a manner that a state before the cutout becomes a closed posture. The cam plate 3 provided on the outer handle 2 and the lock bar 4 installed so as to move along the shoji frame 1b are linked to each other. The receiving member 7 is detachably engaged.

In the external handle device for the emergency entrance, the internal handle 11 arranged on the indoor side is attached to the shaft 10 of the pinion 9 which meshes with the rack 8 fixed to the lock bar 4.

The presence of the outer handle 2 as part of the shoji frame 1a is concealed from the visual sense of the exterior of the building.

However, when the external handle 2 is rotated from the outdoor side, the cam plate 3 moves the lock bar 4 by a fixed stroke. By this movement, the lock pin 5 comes off the receiving material of the fixed frame 6. Therefore, the shoji 1 can be opened,
Access to the emergency entrance is free.

Also, when the internal handle 11 is rotated from the indoor side, the lock bar 4 is also moved by a constant stroke due to the meshing movement of the pinion 9 and the rack 8.
The lock pin 5 is disengaged from the receiving member 7 and the shoji 1 can be opened.

When the used emergency entrance is closed with the sliding door 1, the internal handle 11 is turned in the opposite direction from the indoor side.
Then, the lock bar 4 moves in the opposite direction and the lock pin 5
Engages with the receiving member 7 of the fixed frame 6 to be in a locked state.

Embodiment Next, the illustrated embodiment of the present invention will be described.

FIG. 1 is an overall view of the mechanism of the external handle device. The external handle 2 and the internal handle 11 can be commonly unlocked and locked. As shown in FIG. 2, this external handle device is installed on an openable and closable shoji 1 provided as an emergency entrance for firefighting or the like in a window opening of a building. Specifically, as shown in FIG. 3 to FIG. 7, the hanging portion 1a '(see FIG. 6) on the outer surface side of the lower side shoji frame 1a forming the shoji screen 1 has a horizontal length of 120 mm. ,
The outer handle 2 is cut into a rectangular shape having a width of about 66 mm in the vertical direction (see FIG. 5), and is attached to the cut portion of the shoji frame 1a as it is before the cut. That is, the left side bracket 13 attached and fixed to the lower side shoji frame 1a with the screw 12 and the vertical side shoji frame 1
b Support shaft 15 with bracket 14 attached and fixed with screw 12
The outer handle 2 is closed to a bracket 16 rotatably mounted on the support shaft 15 in a state before the outer handle 2 is cut off, that is, the same state as the hanging portion 1a 'of the sash frame 1a shown in FIG. 6 is closed. It is mounted with screws 18 so as to be in a posture (the posture and shape are the same in FIGS. 5 and 6). Therefore, in the appearance of the building, it is difficult for a person to visually recognize the presence of the external handle 2 unless the cut 17 shown in FIG. 3 is carefully checked.

A cam plate 3 is fixed to one end on the inner surface side of the outer handle 2 and is provided so as to project inward. On the other hand, a bracket 14 is fixed with screws 12 in the longitudinal direction of the outer side surface (see FIG. 7) of the shoji frame 1b on the vertical side of the shoji 1, and a relay plate 19 is vertically positioned between the bracket 14 and the shoji frame 1b. It is slidably installed in the direction. The sliding of the relay plate 19 in the vertical direction is performed by the elongated holes 21 formed in the relay plate 19 in the vertical direction.
The guide is guided through two upper and lower guide pins 20, which are screwed from the bracket 14 into the shoji frame 1b. In the figure, reference numeral 22 denotes a sliding washer. A cam roller 23 is provided at a lower end of the relay plate 19 and is engaged with a cam groove 24 provided in the cam plate 3 of the external handle 2 at an oblique angle of 45 °. Therefore, when the outer handle 2 is turned outward as shown by a two-dot chain line in FIG.
The relay plate 19 is moved downward by about 40 mm by the cam movement between the cam plate 24 and the cam groove 24.

At the upper end of the relay plate 19, a projection 25 is provided, which hits the roller 26 of the lock bar 4, and the relay plate 19
, The lock bar 4 is lowered. Thus, the outer handle 2 and the lock bar 4 are linked via the relay plate 19. A distance m of about 14 mm is provided between the lower edge of the projection 25 and the roller 26. When the outer handle 2 is rotated by the distance m, the projecting portion 25 of the relay plate 19 hits the roller 26, and the lock bar 4 is further extended by about 18 mm stroke n as an extension of the rotational momentum. It is configured to be lowered (fourth
Figure).

As shown in FIG. 7, the lock bar 4 is formed as a long bar having the same cross-sectional shape as the guide groove 27 prepared in advance on the sash frame 1b on the outer surface of the sash frame 1b on the vertical side of the sash screen 1. And
It is slidably installed in the guide groove 27. The lock bar 4 is installed along the sash frame 1b on the vertical side of the sash 1 as shown in FIG. In the vertical direction of the lock bar 4, three lock pins (with rollers) 5 are protrudingly provided at positions where the length is approximately equally divided into three. Each lock pin 5 is detachably engaged with a receiving member 7 attached to a fixed frame (sash) 6 (see FIG. 2) which is fitted and fixed in a window opening of the building. As is clear from FIGS. 9 and 10, the receiving member 7 has a length in the vertical direction fixed to the fixing frame 6.
It is a small piece of about 15mm. Therefore, when the lock bar 4 is lowered by the stroke n by the external handle 2 as described above, the lock pin 5 is securely detached from the receiving member 7, and
This allows the shoji 1 to be opened.

On the other hand, an inner handle 11 is installed inside the shoji frame 1b on the vertical side of the shoji 1 (FIGS. 8 to 10). Shoji frame
A shaft 10 of the pinion 9 is rotatably supported by a bearing metal fitting 30 fixed to 1b with a screw, and an inner handle 11 is attached to an outer end of the shaft 10. Therefore, the pinion 9 can be rotated by operating the inner handle 11. The rack 8 meshing with the pinion 9 is connected to the lock bar 4 through a cutout 31 of the shoji frame 1b. Accordingly, when the inner handle 11 is rotated by about 90 ° as shown in FIG. 8, the lock bar 4 is lowered by about 18 mm by the engagement movement between the pinion 9 and the rack 8, and the rack 8 is cut off.
At the point of time when the lower edge 31 is reached, the lock pin 5 is disengaged from the receiving member 7 and the sash 1 can be opened.

When the sliding door 1 is closed, the inner handle 11 is rotated in the reverse direction. Then, the lock bar 4 is also raised by the engagement movement of the pinion 9 and the rack 8, and the rack 8 is notched.
When the lock pin 5 comes into contact with the upper edge of the
(See FIG. 9), and the shoji 1 is in a locked state in which it cannot be opened. At this time, the roller 26 at the lower end of the rob bar 4 does not come into contact with the projection 25 of the relay plate 19 at all due to the effect of the play at the distance m described above.
That is, the inner handle 11 exhibits an operation that is not related to the operation mechanism of the outer handle 2.

However, even when the shoji 1 is opened by operating the outer handle 2, when the shoji 1 is closed, the locking operation is always performed by operating the inner handle 11 as described above.

As is clear from FIGS. 3 and 6, a return torsion coil spring 33 is mounted on the shaft portion of the outer handle 2. Therefore, when the hand for operating the external handle 2 is released, the upper part of the external handle 2 returns to the vertical downward position by the action of the torsion coil spring 33 as shown in FIG.

Effects of the present invention As described in detail in conjunction with the embodiment above, the external handle device of the emergency entrance sash according to the present invention,
The outer handle 2 is formed as a part of the shoji frame 1a.
Since it has a structure assimilated into 1a, it has excellent design in appearance of the building.

Since the external handle 2 is not visible visually, but is a hidden existence known to those who know it, it is extremely advantageous for crime prevention. That is, there is a sense of security that the presence, position, and operation of the external handle 2 will not be easily understood by those who are not familiar with the circumstances, and there is an advantage that the psychological reliability is high.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view showing the entire mechanism of the external handle device according to the present invention, and FIG. 2 is an elevation showing a shoji at an emergency entrance of a building in which the external handle device of the present invention is implemented. FIGS. 3, 3 and 4 are front and right side views showing the main part of the embodiment of the external handle device, and FIGS. 5 and 6 are arrows 5-5, 6-6 in FIG. FIG. 7 is a sectional view of FIG.
FIG. 8 is a front view showing the arrangement of the shoji and the inner handle, and FIGS. 9 and 10 are front views and horizontal sectional views showing details of the mechanism of the inner handle. FIG. 11 is a horizontal sectional view showing an embodiment of a conventional external handle device. DESCRIPTION OF SYMBOLS 1 ... Shoji, 1a, 1b ... Shoji frame 2 ... External handle, 3 ... Cam plate 4 ... Lock bar, 5 ... Lock pin 6 ... Fixed frame, 7 ... Receiving material 8 ... Rack, 9 Pinion 10 Shaft 11 Internal handle

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Kuraya 8-21-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) Inventor Seishi Suzuki 8-2-1 Ginza, Chuo-ku, Tokyo No. Takenaka Corporation Tokyo Main Branch (72) Inventor Kozo Sakamoto 8-21-1, Ginza, Chuo-ku, Tokyo Inside Tokyo Central Corporation (72) Inventor Tadashi Nishimura 1-chome Yamate, Funabashi-shi, Chiba No. 1-1 Inside Nippon Kentei Co., Ltd. (72) Inventor Hiroshi Kobayashi 1-1-1, Yamate, Funabashi-shi, Chiba Prefecture Inside Nippon Kentei Co., Ltd. No. 1 Nippon Construction Steel Corporation (58) Fields investigated (Int. Cl. ⁶ , DB name) E05C 9/00-9/24 E05C 1/06 E05C 1/14 E05C 3/08 E05B 1/00 311 E05B 65/10 E05B 5/00-5/02

Claims (2)

(57) [Claims] An external handle device for unlocking a locking mechanism for a sliding door of an emergency entrance from the outdoor side to open the emergency entrance, wherein an external part having a shape equivalent to a part of the outer surface side of the sliding door frame is cut out. A handle is rotatably attached to a portion corresponding to the cut portion in a state where the state before cutting is a closed posture, and is installed so as to move along a cam plate provided on the external handle and a shoji frame. A lock bar projecting from the lock bar, and a lock pin projecting from the lock bar and a receiving member of the fixed frame are removably engaged with each other, and an external handle device for an emergency entrance is provided. . 2. The emergency according to claim 1, wherein an inner handle disposed on the indoor side is mounted on a shaft of a pinion that meshes with a rack fixed to a lock bar. Entrance shoji handle device.