JPH02127389A - Brake manual device for passenger conveyor - Google Patents

Abstract

PURPOSE:To manually release an electromagnetic brake safely with a simple operation regardless of the abnormality of an electric system by connecting a manual mechanism fitted to the electormagnetic brake braking a driving machine when de-excited and releasing it when excited and an operation section provided near the outer face of a main frame with a transmitting mechanism. CONSTITUTION:In a conveyor constituted of a main frame 1 circulation-movably provided with an endless footboard chain, a driving machine 6 coupled with the footboard chain at the longitudinal intermediate section of the main frame 1, and an electromagnetic brake 6d, a manual release operating mechanism 7 is fitted to the electromagnetic brake 6d. Transmitting mechanisms 9a-9e, one end of which is connected to the manual mechanism 7 and the other end is connected to an operation section provided near the outer face of the main frame 1, are provided. When the operation section is operated, the manual mechanism 7 is operated via the transmitting mechanism 9, and the electromagnetic brake 6d is released.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a manual brake device for a nine-passenger conveyor in which a driving machine is provided in the longitudinal middle portion of a main frame.

[Conventional technology]

Figure 1 shows a passenger conveyor consisting of a moving walkway similar to that shown in, for example, Publication No. 62-34936.
In Figure 2, (l) is the main frame of the passenger conveyor, (2) is the main frame (
1) A handrail erected along the longitudinal edge; (3) is an endless railing with a large number of treads (3a) connected, and the outbound side (3b)
and the return side (a treadle chain formed in three parts and provided so as to be able to circulate within the main frame (1); the 14-pin is fixed to the main frame [1) and extends from the outbound side (3b) of the treadle chain (3). Outbound rail to guide you,
(5) is the return rail that guides the return side <sc> t-.

(6) is a drive machine installed in the longitudinal middle of the main frame (1), which includes a speed reducer (6b) driven by an electric motor (6a), a gear reducer (6b) which is shaped like an endless track, and a forward side (3b) of the tread chain (3). ) and return side (
An electromagnetic brake (6d) consisting of a drive mechanism (6C) that is engaged with the drive mechanism (6C) and input to the speed reducer (6b) and a disc brake provided on the input shaft of the speed reducer (6b) is provided. .

A conventional passenger conveyor is constructed as described above.

When the drive machine (6) is energized, the electromagnetic brake (6d) releases the brake on the reducer (6b), and the drive mechanism (6C) is activated by the electric motor (6a) via the reducer (6b). Work.

The treadle (3a) connected to the treadle chain (3) is operated in a circular manner so that passengers on the treadle (3a) are transported on the outbound side (3b).

[Problem to be solved by the invention]

In the above-mentioned passenger conveyor, the electromagnetic brake (6d
), but in this case, the step plate (3a) directly above the drive unit (6) must be removed and the electromagnetic brake (6d) manually operated, or an electric brake release means must be provided. It turns out.

However, in order to remove the treadle (5a), it is usually necessary to remove the treadle (3a) 1r at the inverted part of the treadle chain (3) and move the empty space above the drive machine (6). Yes, but.

Since the electromagnetic brake (6d) is in a braking state, the treadle chain (
3) It is impossible to move. Also, the drive machine (6
) In order to directly remove the tread plate (3a) directly above the tread plate (3a), it is necessary to make all the tread plates (3a) of a special structure, which poses a problem in that the manufacturing cost increases significantly.

In the case of electric brake release means, during a power outage.

In the event of an electrical system failure or failure of the brake coil, the brake cannot be released and the inspection work must be performed with two currents on, increasing the risk.

The present invention has been made to solve these problems, and an object of the present invention is to provide a manual brake device for a passenger conveyor that can release the brake with a simple operation and allow work such as test runs to be carried out safely.

[Means to solve the problem]

The manual brake device for a passenger conveyor according to the present invention includes a manual mechanism for releasing an electromagnetic brake;
An operating section provided on the outer surface of the main frame is connected by a transmission mechanism.

[Effect]

In the manual brake device for a passenger conveyor configured as described above, when the operating section is operated during a trial run or the like, the manual mechanism is actuated via the transmission mechanism and the electromagnetic brake is manually released.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. In the figure, the same symbols as in Figure 1 indicate corresponding parts, (6
71 is an armature that is attracted when the electromagnetic brake (6d) is activated and releases the brake; (71 is the electromagnetic brake (6d))
(7a) IIi One end of the manual mechanism (71) is pivotally supported on the electromagnetic brake (6d) fixing part. The release lever (7b) is a screw held on the pivot shaft of the release lever (7a) The return spring consists of a thin coil spring, (7 is the armature (pressing pole erected at 6 and pressed by the release lever (7a)), (2a) is the handrail (2)
the inner deck of the parapet (2) removably attached to the base of the
(8) is an operation section provided directly below the inner deck (2a),
(8a) is a bracket for the operating part (8) whose one end is fixed to the upper abutment of the main frame (1) and extended below the inner deck (2a), and the support surface (8b) is formed in the extension part. Support surface (
8b) is provided with an open engagement groove (8C) at the edge thereof. (8d) is an operating rod, which has a handle (8e) at its upper end, a normal latch (8f) fixed to the upper side of its length, and a release latch (8g) fixed to its lower side. has been done. (9) is a manual mechanism (transmission mechanism that connects 71 and operation part (8), (9a) is a bracket at one end) (8a
), and the lower end of the operating rod (8d) is pivotally connected to the rotating end of the lever. ) is the main frame (1)
A second
Pulley m < qd) is a fourth pulley pivotally supported by the speed reducer (6b) and placed opposite to the release lever (7a); A transmission rope is wound around the pulley (91)), the M2 pulley (90), and the third pulley (9d) in order, and the other end is fixed to the rotating end of the release lever (7a).

The handle is fixed to the electromagnetic brake (6d) and the release lever (7
a) with a manual release detection switch pressed by;
(10a) is a normally closed contact, αD is an automatic return operation switch for the passenger conveyor, and az is an upward operation relay.

(12a) is a normally open contact, α1 is a descending operation relay, (
13a) is a normally open contact, (→ is a power supply.

In the manual brake device for a passenger conveyor configured as described above, 1 During normal operation, the operating part (8) is normally lowered with the latch (8f) supported by the support surface (8b) as shown by the line in Figure 4. The handle (8e) is held in position and the handle (8e) is attached to the inner deck (2
It is placed below a). In addition, the release lever (7a) of the manual mechanism (7) is pressed by the return spring (7b) as shown in Figure 3 (7C), and the manual release detection switch (1 (7) is held in a position away from the Ru.

In this state, the operation switch ALL is operated, for example, to the upward side, and the upward operation relay α is energized by the route (+)-αυ-a2-(- circuit, and the contact (12a) is closed.

Since the second manual release detection switch aG is not pressed, the contact (10a) is closed (+) - (10
The circuit a)-(12a)-α2-(c) causes the upward operation relay α2 to be self-held, and the upward operation of the passenger conveyor is continued. Further, when the operation switch aI+ is operated to the downward direction, the passenger conveyor is operated downward by the downward operation relay aj, although a detailed explanation will be omitted.

When performing maintenance work, the passenger conveyor is stopped, the electromagnetic brake (6d) is deenergized, and the armor is removed.
The gear (6) brakes the reducer (6b) by being pressed by the splash (not shown) of the electromagnetic brake (6d). In this state, the corresponding part of the operating part (8) on the inner deck (2a) is removed. The release latch (8g) is removed from the support surface (8b) by operating the operating rod (8d), removing it from the support surface (8b) through the retaining groove (8), and pulling it upward. At the raised position, insert the engagement groove (80) again and release the latch (8g) on the support surface (8b) as shown by the chain line in Figure 4.
support. The upward displacement of the operating rod (8d) is caused by the transmission mechanism (9
) to the release lever (7a), the release lever (7a) is displaced and presses the suppression bolt (7C). This allows the armature (6 is the electromagnetic brake C6'3
-) is displaced against the spring, and the brake of the reducer (6b) is maintained in a released state. In addition, the manual release detection switch Q (I) is pressed by the displacement of the release lever (7a), and the contact (1) is pressed.
0a) is released. Then, maintenance work and trial operation are performed with the shear armature (6e) being suppressed and displaced by manual operation of the operating portion (8) and the electromagnetic brake (6d) being manually released. Therefore, with simple operation, you can also use electricity even during power outages! Maintenance work can be carried out safely without being affected by J abnormalities.
Trial runs etc. can be carried out.

In addition, in the 11th to 5th embodiments, when the operating rod (8d) is pulled up as shown in FIG.
2a) The position is also prominent. Therefore, when the electromagnetic brake (6d) is manually released, the inner deck (2a) cannot be attached.9 This prevents problems caused by starting normal operation of the passenger conveyor without releasing the manual release. can.

Furthermore, in the embodiments shown in FIGS. 1 to 5, an electromagnetic brake (6
d) When the manual release detection switch (1G
is pressed to open the contact (10a).

Therefore, in the electric circuit shown in FIG.
When υ is operated, ascending operation relay az, descending operation relay a
Even if any one of 3 is energized, the passenger conveyor is not self-held and the operation switch aυ is automatically reset to stop the passenger conveyor. Therefore, accidents caused by continued operation of the passenger conveyor against the passenger's will can be prevented. It is also possible to display 9, which warns that the electromagnetic brake (6d) is being manually released, by operating the manual release detection switch.

FIG. 6 shows another embodiment of the invention.

In the figure, the same reference numerals as in FIGS. 1 to 5 indicate corresponding parts.

(2b) is a balustrade panel that is removably attached to cover the inside of the balustrade (2).
It is a protruding piece that is fixed to the back surface and is arranged above the operating rod (8d) held in the lowered position.

That is, the embodiment shown in FIG. 1 is the embodiment in which the inner deck (2a) in the embodiments shown in FIGS. When the balustrade panel (2b) is pulled up, the protruding piece (2C) hits the protruding piece (20), making it impossible to properly attach the parapet panel (2b).

Therefore, although a detailed explanation will be omitted, it is clear that the embodiment shown in FIG. 6 provides the same effect as the embodiment shown in FIGS. 1 to 5.

〔Effect of the invention〕

The present invention has been described above. According to the present invention, a manual mechanism for operating an electromagnetic brake repeatedly is connected to an operating section provided on the outer surface of the main frame by a transmission mechanism. This allows the electromagnetic brake to be released by manual operation, preventing electrical problems such as power outages and electromagnetic brake coil abnormalities. 0
Regardless of any abnormalities, the electromagnetic brake can be safely released by a simple operation, which has the effect of making maintenance work, test runs, etc. easier.

[Brief explanation of drawings]

Fig. 1 is a diagram showing an embodiment of the manual brake device for a passenger conveyor according to the present invention, and corresponds to an enlarged plane of the 1-1 line in Fig. 7, which will be described later. Fig. 2 is an enlarged view of Fig. 1 0n-n@. Side view, Figure 3 is a right side view of Figure 2, Figure 4 is a diagram corresponding to Figure @1 and is an enlarged side view of the IV-IV line location of the first cause, which will be described later, and Figure 5 is an enlarged side view of Figure 1. FIG. 6 is a view corresponding to FIG. 4 showing another embodiment of the manual brake device for a passenger conveyor according to the present invention, and FIG. 7 is a conceptual vertical sectional side view of the passenger conveyor. fil...Main frame, (3)...Tread chain, (3a)
...Treadboard, (6)...Driver, (6d)...Electromagnetic brake, (7)...Manual mechanism, (8)...Operation unit, (9)...Transmission mechanism. In addition, the same parts or corresponding parts in FIG. 1 are indicated by the same reference numerals.

Claims (1)

[Claims] A main frame in which an endless tread chain connecting a large number of tread boards is provided so as to be movable in a circular manner, a drive machine provided in the longitudinal middle part of the main frame and engaged with the tread chain, and a drive machine for extinguishing the drive machine. A passenger conveyor is provided with an electromagnetic brake that brakes when activated and releases when activated; a manual mechanism that is attached to the electromagnetic brake and releases the electromagnetic brake; A manual brake device for a passenger conveyor, characterized in that an end thereof is provided with a transmission mechanism connected to an operating section provided near the outer surface of the main frame.