JPH023495Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention relates to a drainage operation device for a guide rail that guides a lifting object such as a car or a counterweight. This relates to products that can be operated efficiently and have a long service life.

[Prior art]

In outdoor elevators, if the guide rail that guides the car or counterweight is left with rainwater adhering to the guide rail contact surface, rust will occur due to oxidation and cause corrosion. These rusts cause unevenness on the guide rail contact surface with the guide shoe, and when the roller guide shoe rolls on such a rail surface as the elevating body moves up and down, it vibrates, which is propagated to the car and causes discomfort to passengers. In addition to this, the durability of the guide rail may also be reduced.

Therefore, in order to solve the above problem, the present applicant has proposed a draining method in which a sliding body is pressed against the guide rail to scrape off moisture adhering to the rail surface during operation of the elevator.

Figures 1 to 3 show such a guide rail draining device for an outdoor elevator, in which 1 is a guide rail arranged along the vertical direction on the side wall of the hoistway;
Reference numeral 2 denotes an elevator car; 3 a guide shoe for guiding the car 2 along the guide rail 1; Roller 3 that rolls into contact with surface 1b
b, and these rollers 3a, 3b are supported on the car by a bracket 3c.

Reference numeral 4 denotes a draining mechanism for scraping off rainwater adhering to the guide rail 1, and this draining mechanism 4 includes sliding bodies 5a, 5b made of a non-metallic material such as rubber, which are in sliding contact with both the left and right side surfaces 1a of the guide rail 1; Guide rail 1
The sliding body 6 is made of non-metallic material such as rubber and is in sliding contact with the face surface 1b, and the support frame 7 is configured to hold these sliding bodies 5a, 5b, 6. The support frame 7 is provided on both side surfaces 1a of the guide rail 1.
Support pieces 8a, 8a and 9a, 9a are bent inwardly at right angles at the distal end opposite to the support pieces 8a, 8a and 9a, 9a.
1 are formed, and the sliding bodies 5a and 5 are formed between the supporting pieces 8a and 8a and between 9a and 9a.
b, and the sliding bodies 5a, 5b are movably pivotally connected to the respective long holes 10, 11 by pins 12, 13 passed through the sliding bodies 5a, 5b at positions deviated from their centers. Compression springs 14 and 15 are interposed between the support frame 7 and the support frame 7, respectively, to apply rotation moments to the sliding bodies 5a and 5b in the directions of arrows A and B in FIG. 3, and as shown in FIG. In this way, when the sliding bodies 5a and 5b enter the draining position relative to the rail side surface 1a, they are pressed against the side surface 1a by the spring pressure of the compression springs 14 and 15.

Further, support pieces 16a, 16a bent inward at right angles are formed in the portion of the support frame 7 that faces the rail face surface 1b.
6a, 16a are provided with elongated holes 17, and the sliding body 6 is provided between the supporting pieces 16a, 16a.
is interposed therebetween, and this sliding body 6 is movably pivotally connected to the support pieces 16a, 16a by engaging a pin 18 passing through this in the vertical direction into the elongated hole 17, and furthermore, the sliding body 6 and this By interposing the compression spring 19 between the supporting frames 7 facing the
The sliding body 6 is biased toward the face surface 1b. This is done when the sliding body 6 is in the draining position with respect to the face surface 1b.
This is to apply pressure to the

Reference numeral 20 denotes an electromagnetic plunger that operates the draining mechanism 4 into the draining position shown in FIG. 2 and the non-draining position shown in FIG. combined. 22 is a bracket for supporting the plunger 20 on the car 2.

In the guide rail draining device configured as described above, when draining the drain attached to the guide rail 1, operate the drain operation command switch on the car 2 to operate the plunger 20, and move the movable rod 21 to the first
Move it forward in the direction of arrow X in the figure. As a result, the draining mechanism 4 in the state shown in FIG. 3 changes to the state shown in FIG.
is held in pressure contact with the side surface 1a and face surface 1b. If the elevator car 2 is raised or lowered in this state, the rainwater adhering to the side surface 1a and the face surface 1b will be scraped off by the respective sliding bodies 5a, 5b and 6.

However, as described above, when a water draining operation command is given during the elevator car's upward operation, each sliding body 5a, 5
b, 6 are pressed against the side surface 1a and the face surface 1b during draining operation, the scraped water scatters in the horizontal direction, and some of the scattered water adheres to the guide rail 1 again, resulting in a sufficient amount of water being removed. Drainage effect cannot be obtained.
Therefore, it is possible to drain the water when the elevator is running down, but manually issuing the operation command makes the operation extremely complicated, and if you forget to cancel the water draining operation, the sliding body will not move up or down. At the same time, the sliding body comes into pressure contact with the rail, causing unnecessary wear on the sliding body. In particular, since the sliding body was molded from a non-metallic material, it had the disadvantage of shortening its lifespan.

[Summary of the idea]

This invention solves the above-mentioned problems and is effective by creating a control system in which the draining operation is effective only when a draining operation command is given by an attendant or the like and the elevator car is being operated downward. It is an object of the present invention to provide a water draining operation device for an elevator guide rail that enables water draining and improves the life of a sliding body.

[Example of idea]

Hereinafter, embodiments of this invention will be described based on the drawings.

Figure 4 shows an example of the control circuit for the elevator guide rail drain operation device of this invention, where L1 is the (+) power line and L2 is the (-) power line. These include a drain operation command switch 23 installed inside the car or in the staff room, a normally closed contact 25b of a running relay (not shown) that is energized while the car is running, and an alighting operation relay (not shown) that is energized when getting off the car. ) is connected to the water draining operation command relay 24 through a series circuit of the normally open contact 26a, and the water draining operation command switch 23 and the normally closed contact 25 are connected.
A series circuit of a normally open contact 25a of a running relay which is energized during running and a normally open contact 24a of the water drain operation command relay 24 is connected in parallel to the series circuit of the normally open contact 26a and the normally open contact 26a.

Furthermore, an electromagnetic plunger 20 of the water draining mechanism 4 shown in FIG. Operation completion detection contact 20 that closes when activated
a, 20b. Reference numeral 27 denotes an indicator light indicating that the draining operation is in progress, and this indicator light 27 is connected between the power lines L1 and L2 via the operation completion detection contact 20a of the plunger 20. Reference numeral 28 denotes an elevator running command relay, and this running command relay 28 detects the normally closed contact 24c of the draining operation command relay 24, the normally open contact 26b of the exiting operation relay, and the closing of the car and landing door. The power line L1,
L2, and the normally closed contact 24c is connected to the operation completion detection contact 20b of the plunger 20.
However, normally open contacts 31a of a rising operation relay (not shown), which is energized during ascending operation, are connected in parallel to the normally open contacts 26b.

Next, the operation of this embodiment configured as described above will be explained.

When draining the guide rail, first, the drain operation command switch 23 is turned on to put the circuit shown in FIG. 4 into the drain operation mode. In this state, when the car stops, for example, at the top floor and the direction of descent is set, the descent operation relay is energized and the normally open contacts 26a and 26b are closed.
(+) - Switch 23 - Normally closed contact 25b - Normally open contact 26a - Relay 24 - Drain operation command relay 24 is energized by the closed circuit of (-), and its normally open contact 24
a, 24b are closed, and normally closed contact 24c is opened.

By opening the normally closed contact 24c, the driving command relay 28 is prevented from being energized, and by closing the normally open contact 24b, the electromagnetic plunger 20 is activated, and the movable rod 21 and draining mechanism shown in FIG. 4
is moved forward in the direction of arrow
and is brought into engagement and pressure contact with the face surface 1b. Then, when the plunger 20 is fully activated, the detection contact 2
0a and 20b are closed. When the detection contact 20a is closed, the (+)-contact 20a-indicator light 27-(-)
The drain operation indicator light 27 lights up in the closed circuit. Also, when the contact 20b closes and the door closes,
(+) - Contact 20b - Normally open contact 26b - Door closed detection contact 29a - Safety detection contact 30a - Relay 28 -
When the (-) circuit is closed, the travel command relay 28 is energized.

When the elevator runs in the down direction due to the energization of the travel command relay 28, the travel relay is energized and its normally open contact 25a is closed.
(+) - Contact 25a - Contact 24a - Relay 24 -
The water draining operation command relay 24 is self-held in the (-) closed circuit. Then, as the car descends, rainwater adhering to the side surface 1a and face surface 1b of the guide rail 1 is removed from the respective sliding bodies 5a and 5b.
and 6 to scrape and drain the water.

Furthermore, when the car descends to, for example, the lowest floor and stops, the elevator's descending operation is canceled, thereby opening the normally open contact 26a of the descending operation relay and also opening the normally open contact 25a of the traveling relay. , the water draining operation command relay 24 is deenergized and the water draining operation is automatically canceled. That is, the draining mechanism 4 is returned to the state shown in FIG. 3.

Furthermore, when the car is in ascending operation, the normally open contact 26a of the descending operation relay is in an open state, so even if the draining operation command switch 23 is held in the on state, the draining operation command relay 24 is not energized. do not have. In other words, the water draining operation command relay 24 is energized only when the car is being dismounted, and the guide rail 1 is efficiently and effectively drained.

Note that the draining operation control method for performing the draining operation only when the car is being dismounted is not limited to the circuit configuration shown in FIG. 4. Moreover, it can be similarly applied to the guide rail of the counterweight.

[Effect of idea]

As explained above, according to this invention, when a draining operation command is given by a staff member, etc., the draining operation is effective only when the car is being operated downward, and the draining operation is automatically canceled during upward operation, where the draining effect is low. This control system prevents the rainwater removed from the guide rail by the draining mechanism from scattering into the hoistway, making it possible to effectively drain the guide rail and draining water only when the car is descending. Since this is done automatically, it has the effect of improving the lifespan of the sliding body that removes adhering rainwater.

[Brief explanation of the drawing]

Fig. 1 is a side view of the drain operation device for the elevator guide rail, Fig. 2 is a plan view along the - line in Fig. 1, Fig. 3 is a plan view showing the drain release state, and Fig. 4 is the elevator of this invention. It is an operation control circuit diagram showing an example of a guide rail draining operation device. DESCRIPTION OF SYMBOLS 1... Guide rail, 2... Car, 4... Draining mechanism, 5a, 5b, 6... Sliding body, 20... Plunger, 21... Movable rod, 23... Draining operation command switch, 24... Draining Operation command relay, 25
a, 25b... Travel relay contact, 26a, 26b
...Getting off operation relay contact, 27...Indicator light, 28
...Travel command relay. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A draining mechanism that is attached to the elevating body and removes moisture adhering to the guide rail, a draining operation command switch installed in the car or in the staff room, and operating the draining mechanism into a draining position and a non-draining position by the draining operation command switch. In an electromagnetic plunger in which the draining mechanism is integrally connected to the tip of the movable rod of the electromagnetic plunger, even if the draining position is commanded by the draining operation command switch, the lifting body is not operated in the descending direction. A water draining operating device for an elevator guide rail, characterized in that it is equipped with an operating circuit that commands a draining position only inside the elevator guide rail.