JP2003221959A - Locking device for emergency entrance door for high-rise building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking device for an emergency entrance door having a high safety which cannot be easily set to an openable state from the outdoor side unless an aggressive operation is performed when cleaning window glass. <P>SOLUTION: Vertical moving pieces 18A and 18B which vertically move by interlocking with the rotation of a handle shaft 7 of an inner handle 5 arranged at the indoor side of the vertical style 1 of a shoji style 1 are provided, and a locking piece 2 linking to and separating from a lock receiving piece 4 placed at a vertical frame 3 is provided at a vertical moving pieces 18A and 18B. Also, an arm piece 9 is protruded and installed to the handle shaft 7, a positional relation intersecting the locus of rotation of the arm piece 9 is created and the guiding member 20 is vertically installed to the style 1. And a handle piece 6' is protruded to a drive piece 21 pushing the arm piece 9 by vertically moving along the guiding member 20, and the tip of the handle piece 6' is protruded to a drive piece 21 pushing the arm piece 9 by moving vertically along the guide member 20, and the tip of the handle piece 6' is led out to the outdoor side through a moving gap 26 provided between the style 1 and the vertical frame 3 through a moving gap 26 and is used as an external handle 6. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for an emergency entrance door in a high-rise building, which is specially provided as a fire entrance during a fire. is there. 2. Description of the Related Art For example, as described in Japanese Utility Model Publication No. 7-30844, an external handle is provided coaxially with an internal handle, and the external handle is rotated and unlocked in the same manner as the internal handle. There is a structure in which the door can be opened from the outdoor side. In the prior art, the door is opened by touching an external handle to unlock the door when cleaning the glass.
Without returning the door to the closed position, the external handle may be in the locked position and leave the dangerous door open. [0004] The present invention focuses on such disadvantages of the conventional example,
It was created with the aim of providing a highly secure emergency entry door locking device that cannot be easily opened from the outside without active operation during glass cleaning. . BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a locking device for an emergency entrance door in a high-rise building according to the present invention, and FIG.
2 is a cross-sectional view taken along the line aa of FIG. 1, FIG. 3 is a front view of the inside of the device box showing the cross section of the device box, FIG. 4 is a cross-sectional view taken along the line bb of FIG. It is explanatory drawing which shows a positional relationship. The emergency entrance shown in the figure is constructed by fitting a window frame A into an opening provided on a wall surface of a building, and attaching an opening / closing shoji D to the window frame A. ) Is opened from the side to provide an entrance for firefighting or the like in the event of a fire. The sliding door D is a so-called frameless sliding door on the outdoor side. The locking device is provided, and the locking piece 2 constituting the locking device is released from the locking receiving piece 4 provided on the vertical frame 3 side by operating the internal handle 5 on the indoor side or the external handle 6 on the outdoor side, thereby opening the sliding door. Can be performed. The internal handle 5 has a handle shaft 7 protruding from an outdoor end thereof, which is inserted from the indoor side toward the outdoor side and is inserted into the vertical frame 1 so as to be rotatably supported. A first arm piece 8 disposed at an intermediate portion and a second arm piece 9 disposed at a distal end side thereof are fixed to and protruded from a base portion of the shaft 7 having a square shaft. The glass panel g is disposed so as to be overlapped in the indoor and outdoor directions. The first arm piece 8 is housed in the lumen 1a of the vertical frame 1 and housed in a device box 11 fixed via a support piece 10,
A link piece 12 similarly placed in the device box 11 at the tip end side
Is rotatably assembled by a first pivot pin 13,
The other end of the link piece 12 is attached to a mediation piece 14 that vertically moves inside the device box 11 via a second pivot pin 13 ′, and the mediation piece 14 is provided with a regulation pin 13 </ b> A.
A, and the second pivot pin 13 ′, in which the intermediate piece 14 and the link piece 12 are rotatably assembled with each other, are engaged with the guide slot 15 vertically provided in the side plate 11 a of the device box 11, and Piece 14
Are vertically moved at a fixed position regulated by the guide slot 15 in the device box 11. A connecting piece 16 is fixed to the door tip side surface of the mediating piece 14 which is exposed by opening the side face of the sliding door of the apparatus box 10 so as to move vertically with the mediating piece 14. At the upper and lower ends of the connecting piece 16, upper and lower vertical moving pieces 18A, 1 vertically moving along vertical grooves 17 provided in the vertical frame 1 are provided.
8B, the locking pieces 2 are respectively provided on the vertical moving pieces 18A and 18B, and the locking pieces 2 disengage the locking receiving pieces 4 provided on the inner surface of the vertical frame 3 on the side of the sliding door D. I have to do it. That is, the first arm 8 rotates with the rotation of the handle shaft 7, and as a result, rotates counterclockwise in FIG. 2 to link via the first pivot pin 13. Piece 1
2 is lowered while being rotated about the second pivot pin 13 ′. Since the link piece 12 is connected to the intermediate piece 14 via the second pivot pin 13 ′, the intermediate piece 14 is lowered. The intermediate piece 14 is connected to the vertically moving pieces 18A, 1 via a connecting piece 16.
8B, the vertically moving pieces 18A and 18B are also lowered. As a result, the locking piece 2 that has overlapped with the locking piece 4 and has secured the locked state of the shoji D is detached from the position of the receiving piece 4. Then, the openable state of the shoji screen D is obtained. In order to return to the locked state, the members are returned to their original positions by operating the internal handle 5 to rotate the handle shaft 7 in the reverse direction, as shown in FIG. In the locking device according to the present invention, the handle shaft 7 is turned from the outside (outdoor) side of the shoji D to release the locking piece 2 from the position of the lock receiving piece 4 in the same manner as described above to open the shoji. In this embodiment, the distal end of the second arm piece 9 protruding from the distal end side of the handle shaft 7 is inserted through the window 19 that is longer than the inner cavity 1a. A guide member is provided so as to protrude to the outside of the door tip side, and is provided on the outdoor surface side of the distal end (of the second arm piece 9) at a position intersecting with the turning locus about the handle shaft 7 at the distal end. The driving piece 21 is fixed to the indoor surface of the vertical frame 1 with screws 24 and both ends are slid into guide grooves 20a provided on both sides of the guide member 20 in the vertical direction. It is attached to the guide member 20. The drive piece 21 is an auxiliary member that slides into the guide groove 20a on the outdoor surface side back surface of the main body piece 21 'having a pressing portion 21a for pressing (the tip of) the second arm piece 9 at the lower end. The auxiliary part 21 is formed by fastening the part 21 ″.
A leaf spring 23 which is constantly pressed against the center of the guide member 20 in the vertical direction is provided at the center between the guide grooves 20a of the guide member 20, so that the fixed position of the driving piece 21 is maintained.
Further, a handle piece 6 'is protruded from an upper end of one end of the drive piece 21 (main body piece 21') on the side of the sash door, and the handle piece 6 'is attached to the door of the sash D when the sash is closed. An outer (outdoor) handle 6 is led out to the outside (outdoor) side of the shoji through a moving gap 26 formed by the portion and the vertical frame 3, and the handle 6 is attached to the tip of the handle piece 6 ′ by a pressing portion 6 ′.
'Is provided. The moving gap 26 may be at a position corresponding to the moving position of the handle piece 6 '(external handle 6) or a width (length) corresponding to the vertical moving width.
As shown in FIG. 1, the outdoor water-tight material 27 provided at the middle part of the vertical frame 3 in the indoor and outdoor directions is applied to the door end side end (or handle piece 6 ′) of the shoji D as shown in FIG. In addition, the indoor end of the vertical frame 1 is in contact with the indoor-side watertight material 27a provided on the indoor end piece 3a of the vertical frame 3 so as to reliably prevent the indoor from entering. It is. A board 29 is fixed to the vertical frame 1, and an elongated hole 30 is formed in the board 29 along the circumference centered on the handle shaft 7, and the second arm piece 9 is inserted into the elongated hole 30. The pin 28 provided at the intermediate portion of the second arm 9 is engaged so that the second arm 9 makes a circular motion as designed. The movement angle of the second arm 9 and the movement of the first arm 8 The angle is set to approximately 90 °. Thus, the handle piece 6 is moved to the pressing portion piece 6 ''.
When the button is pressed down, the driving piece 21 descends along the guide member 20 against the contact resistance generated by the pressure contact of the leaf spring 23, and the (the pressing portion piece 21 a of) the driving piece 21 is located at the crossing position with the guide member 20. The distal end of the second arm piece 9 (located on the moving path of the driving piece 21) is pressed and pivoted down about the handle shaft 7, and the handle shaft 7 is pivoted accordingly. The opening of the shoji screen D can be obtained by the movement of each part. Then, by rotating the inner handle 5 to return to the original position, the outer handle 6 also returns to the locked position as the original position in conjunction with this. Since the present invention has the above-described configuration,
Unless the handle is vertically moved, the door cannot be opened from the outdoor side, so that erroneous operation can be avoided as much as possible as compared with the conventional rotary type external handle. In addition, since the external handle is connected to the locking device on the indoor side of the door without passing through the door (shoji), the door (shoji) with the glass panel disposed on the entire edge as in the embodiment is used. Therefore, a locking device having a wide range of application can be provided.

[Brief description of the drawings] FIG. 1 is a cross-sectional view. FIG. 2 is a sectional view taken along line aa of FIG. FIG. 3 is a front view of the inside of the device box showing a cross section of the device box. FIG. 4 is a sectional view taken along line bb of FIG. 1; FIG. 5 is an explanatory diagram showing a positional relationship between inner and outer handles. [Explanation of symbols] 1 vertical frame 2 Locking pieces 3 vertical frame 4 Locking piece 5 Internal handle 6 External handle 6 'handle piece 7 Handle axis 9 Second arm piece 18A, 18B vertical moving piece 20 guide materials 21 Drive piece 26 Moving gap

Claims (1)

Claims: 1. A vertical sliding piece is provided on a shoji vertical frame in such a manner that the vertical moving piece moves vertically in association with the rotation of a handle shaft of an internal handle disposed on the indoor side of the vertical frame. A lock piece is provided for engaging and disengaging the lock receiving piece provided on the vertical frame, and an arm piece protrudes from the handle shaft,
A guide member is vertically installed on the vertical frame in a positional relationship intersecting with the rotation locus of the arm piece, and a handle piece is protruded from a drive piece that vertically moves along the guide material and presses the arm piece. A locking device for an emergency entry door of a high-rise building, wherein an end of the handle piece is led out to an outdoor side through a moving gap provided between the vertical frame and the vertical frame to form an external handle.