JPS59198287A - Switchgear for upward and downward opening door of elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Field of application of the invention] The present invention relates to an opening/closing device for a door that opens vertically.

[Prior art]

The opening/closing mechanism of the vertically swinging door is constructed as shown in FIG. That is, 3 is a column equipped with four door rails, whose upper ends are connected by an upper beam 5, and whose lower ends are fixed to the floor 6. l
2 is a lower door, and 2 is an upper door, which are guided by door rails 4 by door shoes 7'VC mounted on the upper and lower sides of both left and right ends, and are moved up and down to open and close.

8.9, 101d The upper door 2 is suspended so that it moves at half the speed of the lower door 1 using the door lift chain.

That is, one end of the chain 8 is attached to a bracket (11) attached to the lower door IVC, and the other end is attached to a guide pulley (13) and a door drive sprocket (16) rotatably attached to a column (3'/c).
It is fixed to a balance weight 17 that balances the weight of the lower door 1 and the upper door 2 through. One end of the chain is fixed to a bracket 12 attached to the lower door 1, and the other end is fixed to a balance weight 17 via 16 drive sprockets.

The chain 10 has one end attached to the upper beam 5, and the other end attached to a guide pulley 14,1 attached to the pillar 3 at the top of the upper door 2.
5, 16 drive sprockets, 1 balance weight
It is fixed at 7.

Is 18 the motor that drives the door and has the appropriate rotational torque? A chain or rope feeds the drive sprocket 16. When the drive sprocket 16 rotates, the chains 8, 9, which are engaged with this sprocket due to VrC.
10 (i=through which the lower door 1 and upper door 2 perform 4 opening/closing operations.

Reference numeral 19 is a switch that detects when the lower door 1 is completely closed, and operates a cam 20 attached to the bracket 11. When this switch turns on, the elevator-φ
) and the heel (not shown) are in a state where they can be raised and lowered.

However, the 44-piece door opening mechanism has the following problems.

(1) The lower door can be manually spaced, and L7 can be opened with half the force of the door weight due to the chain suspension.

Elevator ψ] The seven-door elevator car cannot be stopped while the car is going up or down.

Therefore it is very dangerous.

(2) As shown in Figure 2, when the door is lowered 1'4 (closed), the obstacle 21 such as IC luggage hits the lower end of the upper door 2 and the upper door 2 descends? Even when the door drive motor is stopped, the lower door 1 can be completely closed in its lowering sequence because the door drive motor continues to rotate. Therefore, the lower end of the upper door 2 and the lower door l rise (/
, ), which is dangerous as a gap may occur between the two.

My father, when the elevator car goes up and down with the load/proboscis etc. 22 protruding from the gap into the hoistway as shown in Figure 1, (lower door 1 is closed), turn the switch. 19 is ON, and the car [/] is in the state where the lifting power button is activated)
If the luggage, etc. 22 collides with the protrusion 23 of the hoistway or the inside of the elevator (not shown), the luggage, etc.
Failure to do so may result in damage to equipment inside the unit.

[Purpose of the invention]

Is the purpose of the invention to allow the upper door to remain open? Elevator that can be used for city prevention - upper and lower i river door 1514 closing device?
It is on offer.

[Embodiments of the invention]

Embodiments of the present invention will be described below based on the drawings.

Figures 4 to 7 show an example of a live cannon according to the present invention. Figure 4 is a side sectional view of the lower door 11 and upper door 2 during normal closing operation (lowering operation), and Figure 5 is the state shown in Figure 4. 6 is a detailed cross-sectional view of the upper part of the lower door L and the lower part of the upper door 2, and Figure 6 shows the lowering (closing) movement of the upper door 2. FIG. 7 is a side cross-sectional view of the state in which the metal fitting 24 provided on the upper part of the lower door 1 is in contact with the lower part of the upper door 2 when the lower door 1 is stopped.
FIG. 3 is a detailed view of the contact portion of the figure.

As shown in the figure, the upper and lower ends of the lower door 11 and the upper door 2 - the rise in the width direction (bending part) 1b of the round panel Ia, 2a,
Fold the back side 1c and 2cl so that it has 2b.
It is bent and formed into a U-shape to hold it. lower door 1
The upper folded part 1bIc is the folded part 2C of the upper door 2.
a bent portion 24a that engages with the bent portion 24a with an appropriate gap;
An L-shaped metal fitting 24 consisting of a mounting surface 24b to the lower door lC/J bent portion 1b is attached by welding or bolts (not shown).

Folding the upper door 2 2C and bending the metal fittings 24 1j24
The dimension a is the lower door 11, the upper door 2 in the normal closed end position, the mounting surface 24b of the metal fitting 24, and the bent part 2 of the upper door 2.
It has an appropriate size so that it does not hit b. Further, the metal fittings 24 may be long or short in the longitudinal direction, or a plurality of short metal fittings may be provided.

In this configuration, when the upper door 2 stops descending and only the lower door l descends (closes), the 4th
From the state f) to the state shown in FIG. 6, the mounting surface 24b of the metal fitting 24 and the end of the folded back 2C of the upper door 2 come into contact.

Further, when the lower door l is lowered, the two upper doors are forcibly lowered.

With the lower door l and the upper door 2 at the normally closed end 1[f, the upper door 2? When attempting to open the metal fitting 240, the mounting surface 24b
The turned 2CI/J ends of the door 2 come into contact with each other, and only the upper door 2 will no longer be exposed. Therefore, there is no gap between the upper part of the lower door 1 and the lower part of the upper door 2, and the elevator car is not unloaded with the door open.

(When the lower door 1 is opened, the switch 19 is turned OFF and the elevator car stops moving up and down.) Figure 8 shows a switch that detects the sound that the lower door 2 has completely stopped its lowering (closing) operation. FIG. 7 is a general sectional view of the upper part of the lower door and the lower part of the upper door in an embodiment in which the door is provided.

A switch 25 is attached to the bent portion 1b of the lower door l with screws via brackets 27.

26 is a cam, which is attached to the bracket 28 attached to the bent part 2b of the upper door 2 with a screw (also by welding). A switch 251''i is activated when the door is normally opened/closed i + forceful movement. The mounting location of the brackets 27 and 28 is not limited to the location 1*'rJ:, and is not limited to the location where the brackets 27 and 28 are mounted. ], by extending the cutout 20 and bending it with a taper toward the front panel 2a side, the cam 260 can be replaced and the cam 260 can be omitted.

A lead wire (not shown) is drawn out from the switch 27 to control the door drive motor and the elevator car's movement up and down.

With such a configuration, when the motor is rotating to lower (close) the door, even if only the upper door 2 is stopped due to luggage etc. as shown in Fig. 2, the motor will continue to operate. Is the lower door lowered (closed) to continue? Continue, switch 25
The actuating roller 25R of the switch 25 comes into contact with the tapered roller 26T of the cam 26. When the lower door l lowers, the operating roller 25R of the switch 25
is lowered along the taper 26T of the cam 26, and the switch 25 is turned off at the appropriate position. - The car becomes unable to be raised or lowered.

FIG. 9 shows an embodiment in which a metal fitting and a switch are combined.

29 is a bent portion 292 similar to the metal fitting 24 and a mounting surface 2.
9b Furthermore, the rising part 2 for the cam 2611 C)
A Z-shaped metal fitting consisting of 9C, 30 is a rod, and the bent part 1b% of the lower door l and the installation of the metal fitting 29 i'h+29
The rod 30 provided in the hole 29 with some gaps is fitted with 31 compression screws and supported by the spring 432. It is compressed (N'dF:E), and the mounting surface 29b of the metal fitting 29 is always kept close to the bent portion 1bvc of the lower door 1.

Switch 25u, 33 brackets, lower door 1 (/
＋ is returned to the IC and held by screws.

Now, the upper door 2 descends (1 mo 1ji) and stops completely, the lower door 1σ
, the lower door 11 and the upper door 2 were in the normal closing position, and the upper door 21 was lowered (raised).
In this case, the mounting surface 29b of the metal fitting 29 comes into contact with the end of the four flaps 2C of the upper door 2, and a force P is generated that tries to lift the metal fitting 29 upward. The power of P.

The compression spring 31 bends the door 1 under the metal fitting 29;
ii 1 b V (closed part - When the force P2 is greater than the force P2, the metal fitting 29 is lifted upward and the switch 25 operates rpII. (The assembled state in Fig. 9)
Effect of the invention] According to the invention, the gap between the lower door and the upper door: Stj f
In addition, only the upper door can be opened, and it is safe to prevent damage to luggage, equipment, and elevators.
k can be provided.

[Brief explanation of the drawing]

Figure 1 is a front view of the two-panel door opening/closing system 11, Figures 2 and 3 are side views of the conventional door system, and Figures 4 and 6 are the door opening/closing system of the present invention. : Side sectional view, Fig. 5, Fig. 11g7, Fig. 8 (Fig. g9, i) are cross-sectional views of the parts according to the present invention. 19.25...Switch, 24.29...Metal fittings, 2
6 Fig. 3-542- Fig. 4-Fig.! ;figure

Claims (1)

[Claims] 1. Elevator - In the upper and lower opening doors, the upper part of the lower door is engaged with the lower part of the upper door, and the old door is forcibly closed, completely preventing only the upper door from opening. Elevator - vertical opening door opening/closing device, characterized by the creation of Isoko. 2. In the description of claim 1, is there a gold film on the upper part of the 61J subordinate door for detecting that the closing operation of the upper door has stopped before the normal closing end?
Features: Elevator - vertical opening door opening/closing device.