JPS582155B2 - elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator, and more particularly to a soundproof structure for an elevator car entrance and opening/closing door.

High-speed elevators installed in high-rise buildings move up and down narrow hoistways at high speeds, and the wind pressure and turbulence caused by the movement of air within the hoistway generates an eerie running noise.

This noise propagates into the elevator car, particularly through the gap between the opening/closing door and the entrance, causing discomfort to passengers.

The Japanese standard stipulates that the gap between the corner door and the entrance is 6 mm or less as the dimension necessary for opening and closing the door, and is generally configured with 5 to 6 gates.

As elevator speeds increase, the noise generated in the hoistway during travel increases, and the gap becomes a significant influence as a path for noise propagation into the car.

In other words, even if the soundproofing of the side walls of the car is strengthened, noise still enters through the gaps, making it more uneconomical than necessary.

Therefore, a quiet high-speed elevator could not be created.

The present invention provides an elevator in which the gap between the entrance and exit of the elevator car and the opening/closing door is made into a soundproof structure in which a plurality of comb-like protrusions and grooves are engaged with each other to prevent external noise from propagating into the car. The purpose is to

The present invention will be described below with reference to embodiments shown in the drawings.

In Figures 1 and 2, 1 is an elevator car;
Reference numeral 2 designates a frame forming the entrance and exit of the car 1, 3 the floor of the car 1, and 4, 4 an opening/closing door of the car 1.

The opening/closing doors 4, 4 are suspended by rollers 6 that move on rails 5 fixed to the car 1, and are opened and closed in the left and right directions by a door opening/closing device (not shown).

7 is a guide protruding from the bottom of the opening/closing door 4, 4', 8 is the floor 3
9 is a gap between the entrance/exit frame 2 and the opening/closing door 4, 4/, and 10 is an opening/closing door provided on the floor.

As shown in Fig. 3, an E-shaped excitation member 11 is fixed horizontally to the upper end of the opening/closing doors 4, 4', and is mutually connected to the E-shaped member 12 fixed to the outside of the upper side of the doorway frame 2. The protrusion and groove form the opening/closing door 4
, 4/ are engaged so that they do not come into contact with each other with a slight gap even if they move laterally.

The E-shaped shapes 11 and 12 have three comb-like protrusions 11a.
It is made by extruding iron or aluminum into an E-shape with a groove of 1 lb and a groove of 1 lb.

As shown in Fig. 4, E-shaped sections 13 are fixed vertically to the left and right ends of the opening/closing doors 4, 4', and are aligned with the E-shaped sections 12 fixed to the outside of the left and right sides of the doorway frame 2. The protrusion and the groove are engaged with each other so that they do not come into contact with each other with a slight gap when the opening/closing doors 4, 4' are closed.

As shown in FIG. 5, an E-shaped member 11 is fixed horizontally to the lower end of the opening/closing doors 4, 4' with a support plate 16, and the opening/closing doors 4, 4' are horizontally fixed in a groove 17 provided in the floor 3. It is engaged so that it does not move.

When the opening/closing doors 4, 4' are closed, outside of the gap 9 between the opening/closing doors 4, 4' and the entrance/exit frame 2, E-shaped sections engage with each other as shown in Figures 3 to 5, causing external noise. Since the intrusion route is arranged in a zigzag manner, it is possible to prevent the sound from traveling straight and prevent the external noise from propagating into the interior of the car 1, and the air inside the car and the air in the hoistway are separated by protrusions and grooves. Since they are connected through a gap, oxygen deficiency can be prevented in the event of an accident in which passengers are trapped.

In the above description, an E-shaped material is used, but the same applies to a U-shaped material or a machined material formed from a plurality of protrusions and grooves.

As described above, according to the present invention, the gap between the entrance and exit of an elevator car and the opening/closing door is formed by connecting a plurality of protrusions and grooves fixed to the entrance/exit frame and the opening/closing door with a small gap between each other. As the elevator is configured to fit in the elevator, the noise generated when the elevator moves up and down the hoistway at high speed is prevented from entering through the doorway of the car, making the inside of the car quiet and not causing discomfort to passengers. It also has excellent effects such as preventing oxygen deficiency in the event of an accident in which passengers are trapped.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the elevator of the present invention, Fig. 2 is a front view showing the car shown in Fig. 1, Fig. 3 is a sectional view taken along line A-A in Fig. 2 is a sectional view taken along the line BB in FIG. 2, and FIG. 5 is a sectional view taken along the line CC in FIG. 2. 1... Passenger car, 2... Entrance/exit frame, 4
・・・・・・Opening/closing door, 11, 12, 13, 14, 15・
...Shape material, 17...Groove.

Claims (1)

[Claims] 1. At the entrance/exit of the corner of the elevator, a plurality of comb-like protrusions and grooves are provided around the four circumferences of the entrance/exit frame in parallel with the opening/closing door, and the opening/closing door is provided with the protrusions and grooves of the entrance/exit frame when closed. An elevator characterized in that a plurality of comb-like protrusions and grooves are provided that engage with each other with a small gap.