JPH02233493A - Elevator door unlocking device - Google Patents

Abstract

PURPOSE:To improve the fine design view of an elevator device by installing a releasing mechanism which oscillates and moves a hook upwards by means of energization into the upper lifting passage side of a sliding door and releases the engagement of the hook with an engaging member to eliminate a key hole in the sliding door. CONSTITUTION:When the doorways 1 of the floors where an elevator does not stay are opened by hand for maintenance and inspection, a key rod is inserted into a key hole in a frame body side portion and a switch 13e is depressed. As a result, a releasing mechanism 11 comes into action, a transmission portion 11b rises, a hook 7 rotates clockwise, and the engagement of the hook portion 7b of the hook 7 with an engaging member 4b is released. It is thus possible to open a sliding door 5 by hand.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Application The present invention relates to an improvement in the structure of an elevator door unlocking device. (Prior Art) Figures 7 to 10 show a conventional elevator door unlocking device similar to the one disclosed in Japanese Utility Model Application Publication No. 511-170385. The entrance/exit of the landing (2) is the frame provided at this entrance/exit (1), (
3) is an elevator operation panel installed near one side of this frame (2), and (4) is a hanger case fixed to the upper edge of the entrance/exit (1) on the hoistway side; 4), as shown in Figures 1J8 and 349, includes a rail (4a) that guides a roller (6a), which will be described later, and a nail puller-shaped engaging member that engages with a hook (7b) of a hook (7), which will be described later. (4b) and a contact point (4C) disposed above the engaging member (4b). On the other hand, (5) is a sliding door disposed on the hoistway side of the frame body, which functions to open and close the entrance/exit (1). (δ) is an L-shaped hanging handle mounted on the top of this sliding door (5), and a roller ( 6
a) is rotatably pivoted. (A) is this hanging hand (
6), which is pivotable in the vertical direction; As shown in Figure J9, there is a horizontal side (7a) that is always held in a horizontal position, and a
A hook portion (7b) provided at the bottom of the tip of 7a) to engage with the bent portion of the engaging member (4b), and a hook portion (7b) provided at the top of the tip of the horizontal side (7a) for short-circuiting to the contact (4G). a short-circuiting part (7C), a first roller (7e) rotatably pivoted on the pivoting part of the hook part (7), and a vertical side (7f) bent and extending upward. and a second roller <<7g>> rotatably pivotally attached to this vertical side (7f), and has an L-shape as shown in the figure.

And (δ) is a transmission body arranged to be able to move up and down on the upper hoistway side of the sliding door (5), and its upper end is normally placed opposite the lower surface of the hook spine of the hook part (7) with a gap in between. It looks like this (see Figure 8). (9) is a keyhole inserted through the sliding door (5), which has a T-shape as shown in Figure 17 and Figure 1A, and is located directly below the transmission body (8).
(10) is a key stick inserted into this key hole (9), and is used during maintenance and inspection work (see Figure 10).A conventional elevator door unlocking device is constructed as described above. At the time of handing over, the door will be locked and unlocked as follows. In other words, in order to enter the door from the closed and locked state shown in Figure 8,
Although not shown, 12 rollers (7g) are pressed by the engaging plate of the car door, which is stopped at a position opposite to the entrance (1). As a result, the hook portion (7) rotates clockwise in FIG. 8, and the hook portion (7b) is disengaged from the engagement member (4b) to be unlocked.

Next, the first roller (7e) is pressed against the engagement plate and the sliding door (2) is opened to the right in the figure. Then, the sliding door (5) is closed by pressing the first roller (7e) toward the engaging member (4b) by the engaging plate.

Next, at the position just before fully closing, the slope of the hook (7b) engages the engagement member (
4b) and engages, and the sliding door (5) is locked in the fully open state.

In addition, when manually opening the entrance/exit (1) of a landing where cars are not stopped, such as during maintenance and inspection work other than when the car is on duty, the following operation is performed. In other words, from the landing to the keyhole (9
) and push up the lower end of the transmission body (8). This causes the hook (7) to rotate clockwise to unlock the door, and the sliding door (5) to be opened manually. In addition, as a prior art document of this kind, Utility Model Application Publication No. 56-154
[Problems to be Solved by the Invention] The conventional elevator door unlocking device is constructed as described above, and the key hole (9) is connected to the sliding door (5) as shown in Fig. 7. ) is exposed on the surface, which poses a problem in that the aesthetic appearance of the elevator system is significantly impaired. Also, the keyhole (
9) Sliding doors with a particularly high-quality finish (
5) had the problem that it required a lot of time and effort. The present invention has been made in view of the above points, and an object of the present invention is to provide an elevator door unlocking device that can improve the aesthetic appearance of an elevator system by removing a keyhole from a sliding door.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention includes an engaging member fixedly installed on the upper edge of the entrance/exit of an elevator hall on the hoistway side, a sliding door for opening and closing the entrance/exit, and a sliding door for opening and closing the entrance/exit. a hook portion that is swingably disposed on the upper part of the sliding door and that engages with the engaging member to restrain the opening of the sliding door when the sliding door is closed; The elevator door unlocking device is characterized by comprising a release mechanism that rises to disengage the hook from the engagement member by moving the hook upward. According to the invention, the energized release mechanism rises and swings upwards to release the engagement between the hook and the mating member, so there is no need to provide a keyhole in the sliding door. ( Embodiment) Hereinafter, the present invention will be described in detail based on an embodiment shown in FIGS. (11)
As shown in Figure 1, there is an actuator (lla) that operates when energized, and
) is provided so that it can move up and down, and its upper end is normally attached to the hook part (7).
) The transmission part (ll
b), the transmission part (llb) rises when energized, rotates the hook part (7) clockwise, and connects the hook part (7b) of the hook part (7) with the engaging member (4b). It functions to release the engagement. (l2) is a keyhole drilled in the frame (2) near the operation panel (3), and this keyhole (l2) is electrically connected to the release mechanism (11) as shown in Figure 3. It has a plurality of electroded parts (12a), and unlike the conventional example, they are not provided penetratingly. And (see 3) is this keyhole (l
This key stick (13) is inserted into the key stick (13) as shown in Fig. 4(a). As shown in (b), the main body (13a) and
A bar (13b) provided on this main body (13a),
The above-mentioned keyhole (l2) is provided in the tip of this rod part (13b).
A plurality of electrode parts (13
c), a battery (13d) that supplies power to the electrode section (13c), and a push button switch (13e) that closes an electric path between the battery (13d) and the electrode section (13c). , has the function of supplying power to and operating the release mechanism (11).

Therefore, when performing maintenance inspection work, etc., and manually closing the entrance/exit (1) of a landing where the elevators are not stopped, insert the key stick (13) into the keyhole (12) and switch (
Press 13e). Then, the release mechanism (1l) is activated, the transmission part (flb) is raised, the hook part (7) is rotated clockwise, and the hook part (7b) of the hook part (7) and the engaging member (4b) are rotated clockwise. ) is disengaged, and this makes it possible to manually open the sliding door (5). As described above, according to the present invention, since the keyhole (1z) is provided on the side of the frame (2) where it does not attract attention, it is possible to maintain and improve the aesthetic appearance of the elevator system, and also to improve the appearance of the sliding door. It is expected that manufacturing of (5) will be made extremely easy. Since the battery (13d) that activates the release mechanism (1l) is built into the key stick (13), it is possible to effectively prevent children from tampering with the keyhole (12). Furthermore, the keyhole (l2) is a sliding door (5)
Since it is not installed through the wall, it is extremely effective as a disaster prevention measure.

Next, FIG. 5 shows another embodiment of the present invention, in which:
(xi') is a release mechanism, and this release mechanism (11') is
The support part (1) attached to the upper hoistway side of the sliding door (5)
1'a), a transmission part (11'b) which is vertically movably supported on this support part (tl'a), and a lower part of this transmission part (ll'b) and the support part (11'b). 1' a)
A spring (1 1' c
) and a battery (
A motor (1 1 '
d) and a locking element (11°b) which is connected to the output shaft of this motor (it'd) and fits under the lower part of the transmission part (11°b).
゜e). Then, the motor (11°d) is driven by the power supplied from the battery (13d), and the latch (11'e) raises the transmission part (11°b), causing the hook part (7) to move clockwise. Rotate that hook (7b)
It has the function of releasing the locking between the locking member (4b) and the locking member (4b).

It is obvious that this embodiment also achieves the same effects as those of the above embodiment.

In the above embodiment, the key stick (13) equipped with a battery (13d) is inserted into the keyhole (12), but as shown in FIG. ) is buried in the hall wall and the keyhole (12) and key stick (13) are omitted, the same effect as in the above embodiment can be expected, and the design of the elevator system can be further improved. is obvious.

【Effect of the invention〕

As described above, according to the present invention, it is possible to provide an elevator door release device that can improve the aesthetic appearance of an elevator system by removing a keyhole from a sliding door.

[Brief explanation of the drawing]

FIG. 1 shows a first example of an elevator door release device according to the present invention.
An explanatory diagram showing an embodiment of ``Figure 2 is a diagram showing an elevator landing, Figure 3 is an enlarged view showing the electroded part of the keyhole, ``s4
Figure (a). (b). 5 is a view corresponding to FIG. 1 showing a second embodiment of the elevator door release device according to the present invention, and FIG. 6 is a view showing the elevator door release device according to the present invention. FIG. 7 is a diagram equivalent to FIG. 2 showing another embodiment of the device, FIG. 7 is a diagram equivalent to FIG. 2 showing a conventional elevator door release device, and FIG. 8 is a diagram equivalent to FIG. 1 showing a conventional elevator door release device. Figure 9 is a 1-X cross-sectional view of Figure 8,'! Figure J10 is a perspective view of a conventional key stick. In the figure, (1) is the entrance/exit, (4b) is the engagement member, (5) is the sliding door, (7) is the hook, and (11) and (11') are the release mechanisms. still,

Claims (1)

[Claims] an engaging member fixedly installed on the upper edge of the elevator landing entrance on the hoistway side; a sliding door that opens and closes the entrance; and an engaging member that is swingably disposed above the sliding door and when the sliding door is closed. a hook that engages with the sliding door to restrain the opening of the sliding door, and a hook that is movable up and down on the upper hoistway side of the sliding door and that rises when energized to swing the hook upward and engage the hook and the engagement member. An elevator door unlocking device comprising: a release mechanism for releasing the engagement with the elevator door.