JP2001106460A - Elevator car - Google Patents

Abstract

(57) [Summary] [Problem] To reduce wind noise generated when a car speeds up to reduce anxiety and discomfort of passengers. An apron 14 is provided below a basket threshold.
A is formed on the front of the car door 8 by forming a groove 15A for the arrow blades, and diverting the traveling wind rising on the front of the apron 14A to both sides of the car with the groove 15a by lowering the car. Reduce the wind noise caused. Protrusions may be formed instead of the grooves 15A, and these may have a continuous waveform.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car.

[0002]

2. Description of the Related Art FIG. 11 is a perspective view showing an example of a conventional elevator car, which shows a rope traction type elevator in which the car door is a double door with a double center door. In FIG. 11, a car of an elevator has a car frame 1 suspended via a suspension bar on one side of a sheave of a hoist installed in a machine room (not shown) formed at an upper end of a hoistway, and the car frame. The cab 2 is generally constituted by a cab 2 mounted on the cab 1.

[0003] Among them, the car frame 1 is provided with an upper beam 3 at its upper end, and a plurality of main ropes are provided at the center of the upper beam 3.
A main rope fixing rod, which is not shown in detail at the lower end of 13, penetrates, and the car frame 1 is supported via a compression coil spring (not shown).

[0004] At both ends of the upper beam 3, upper ends of the standing frames 1 are fixed, and at lower ends of these standing frames 1, lower beams 5 are fixed. A floor receiving frame 6 is placed on the lower beam 5, and the cab 2 is further mounted on the upper surface of the floor receiving frame 6 via an anti-vibration rubber.

[0005] At the front end of the floor receiving frame 6, columns 7 are erected symmetrically, and at the upper ends of these columns 7, the front ends of arms 10 are fixed. At the front end of the car room 2 is shown a double-door double-door car door 8, at the lower front side of the car door 8 is shown a door opening / closing mechanism 12, and at the lower side of the lower end of the car door 8. A basket threshold 19 is shown.

[0006] Below the sill 19, the upper end of the apron 14 is fixed to the front end of the sill receiver, which is not shown in detail. An emergency stop device 11 is fixed to a lower end of the upright frame 1, and a roller guide 9 is attached to a lower surface of the emergency stop device 11.

A roller guide 9 is fixed also to the upper end of the upper beam 3 at the upper end of the standing frame 1, and of the upper and lower roller guides 9, the roller facing the front and rear direction of the car is a roller of the hoistway. With a guide rail (not shown) vertically provided on the walls on both sides sandwiched, a roller at the center presses the top surface of the guide rail.

[0008] In the elevator car configured as above, a running wind is generated between the car and the wall surface of the hoistway by moving up and down the hoistway, but the sill on the landing side where the car protrudes into the hoistway. When passing through, the gap between the wall and the wall suddenly narrows, and a vortex is generated due to the change in the gap.

For this reason, in order to alleviate a sudden change in the gap between the car and the sill, an apron 14 is provided at the tip of the car sill, as shown in FIG. 12 showing an enlarged view of the lower part of the car in FIG. As shown by arrows A6, B6, and C6, the noise and vibration caused by the vortex generated on the front surface of the lower part of the car when the car descends as shown by arrows A6, B6, and C6 are reduced.

[0010]

However, even in an elevator car configured as described above, in an elevator that is increasingly speeding up, the apron 14 occurs at the front of the car door when passing through the threshold on the landing side. A so-called wind noise is generated by the swirling vortex, and the wind noise may enter the inside of the car through the door or side plate of the car.

Then, for the passengers in the car,
May cause anxiety or discomfort. Therefore, an object of the present invention is to provide an elevator car capable of reducing wind noise caused by speeding up and eliminating anxiety and discomfort of passengers.

[0012]

According to a first aspect of the present invention, in an elevator car in which an apron is erected below a sill of an elevator car, arrow-shaped grooves or projections are formed in the apron. It is characterized by the following.

[0013] The invention corresponding to claim 2 is characterized in that in an elevator car in which an apron is suspended below a sill of an elevator car, a V-shaped groove or projection is formed in the apron.

The invention corresponding to claim 3 is characterized in that the vertical cross-sectional shape of the groove or the projection is U-shaped, semi-circular or V-shaped. The invention corresponding to claim 4 is characterized in that a bent portion is formed at a lower portion of the apron.

The invention corresponding to claim 5 is characterized in that a damping material is attached to the back surface of the apron. By such means, in the invention corresponding to claim 1, part of the traveling wind rising from the apron to the front of the car door by lowering the car is diverted to the left and right sides of the car door by arrow-shaped grooves or projections. .

In the invention corresponding to claim 2, a part of the traveling wind rising from the apron to the front of the car door as the car descends is diverted to the left and right of the car door by V-shaped grooves or projections.

Further, in the invention corresponding to claim 4, the rigidity of the apron is increased by the bent portion, and in the invention corresponding to claim 5, the vibration of the apron generated by the traveling wind accompanying the lowering of the car is controlled by the damping material. Suppress.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an elevator car according to the present invention will be described with reference to the drawings. FIG. 1 is a partial perspective view showing a first embodiment of an elevator car according to the present invention, corresponding to FIG. 12 shown in the prior art, and corresponding to claims 1 and 4. FIG. 2 is a longitudinal sectional view showing an apron described below with reference to FIG. 1 and a mounting portion thereof. In FIGS. 1 and 2, FIG.
12 is different from FIG. 12 in that a groove is formed on the surface of the apron in the shape of an arrow.

That is, FIG. 11 and FIG.
On the apron 14A, which is the same as the apron 14F shown by 12, a U-shaped groove 15A having a vertical section of approximately 45 ° with the left side facing upward from the center to the left is formed by drawing in five rows vertically. The grooves 15A are also formed symmetrically in five rows on the right side of these grooves 15A.

The lower end of the apron 14A is bent rearward at an acute angle to form a bent portion 14a. Also, at the rear of the upper end of the apron 14A, this apron 14A
A sill support 18 for fixing the sill support 18, a floor support frame 6 for fixing the sill support 18 and a sill 19 fixed to the sill support 18 are shown. A car floor 20 is shown on the floor support frame 6 among them.

In the elevator car in which the apron 14 having the groove formed in the shape of an arrow blade is suspended from the front end of the sill of the car, arrows A1, B1, and B1 in FIG.
As shown in C1, the traveling wind that rises relatively with the cage
Since the air flows in both directions of the car door 8 by 15A, the speed of the airflow on the surface of the car door 8 can be reduced, and the vortex generated by the opening and closing mechanism 12 on the surface of the car door 8 can be reduced.

Therefore, not only the wind noise caused by the vortex can be reduced, but also the rigidity of the apron 14A can be increased and the vibration can be reduced in combination with the bent portion 14a at the lower end. The thickness of the apron 14A can be reduced to reduce the weight.

The longitudinal section of the groove 15A may be formed by spot welding a trough-shaped material bent into a U-shape in addition to drawing, and the entire apron is manufactured (formed) by FRP. Therefore, the material may be made of FRP in addition to the aluminum plate.

FIG. 3 shows a second embodiment of the elevator car of the present invention.
FIG. 9 is a partial perspective view showing an embodiment of the present invention, corresponding to FIG. 1 shown in the first embodiment, and another example of claim 1 and claim 4.
FIG. FIG. 4 is a longitudinal sectional view corresponding to FIG. 2 and showing the apron described below with reference to FIG.

FIGS. 3 and 4 are different from FIGS. 1 and 2 shown in the first embodiment in that projections are formed in the shape of arrow blades instead of grooves on the surface of the apron. .

That is, the external shape viewed from the front is shown in FIGS.
An apron 14B, which is the same as the apron 14F shown at 12, has a projection 16 with a U-shaped vertical cross-section in which the left end faces upward from the center to the left and the front end surface is slightly behind the front of the car sill.
A is formed in five rows up and down by drawing.
Also on the right side of A, the projections 16A are formed symmetrically in five rows.

The lower end of the apron 14B is bent rearward at an acute angle, similarly to FIG. 2, to form a bent portion 14a. At the rear of the upper end of the apron 14B, a sill holder 18 for fixing the apron 14B, a floor support frame 6 for fixing the sill support 18 and a sill 19 fixed to the sill support 18 are shown. Above is shown a car floor 20.

In the elevator car in which the apron 14B having the protrusions formed in the shape of the arrow blades is vertically provided from the front end of the sill of the car, as in the case of the first embodiment, the car is lowered. As shown by arrows A2, B2 and C2 in FIG. 3, the traveling wind rising relative to the car flows in the direction on both sides of the car door 8 by the projection 16A, so that the speed of the airflow on the surface of the car door 8 is reduced. The vortex due to the opening / closing mechanism 12 on the surface of the door can be reduced.

Therefore, not only the wind noise caused by the vortex can be reduced, but also the rigidity of the apron 14B can be increased and the vibration can be reduced in combination with the bent portion 14a at the lower end. Reduction and weight reduction can also be achieved.

FIG. 5 shows a third embodiment of the elevator car of the present invention.
FIG. 5 is a partial perspective view showing the third embodiment, and corresponds to FIGS. 1 and 3 shown in the first and second embodiments, and corresponds to claims 2 and 4. FIG. FIG. 6 is a longitudinal sectional view showing an apron described below with reference to FIG. 5 and a mounting portion thereof.

FIGS. 5 and 6 differ from FIG. 1 shown in the first embodiment in that the grooves on the surface of the apron are formed in a V-shape when viewed from the front. That is, in the apron 14C having the same outer shape as the apron 14F shown in FIGS. 11 and 12 when viewed from the front, grooves 15B having a V-shaped front view and a U-shaped vertical cross section are formed in six rows vertically. ing.

The lower end of the apron 14C is also bent rearward at an acute angle to form a bent portion 14a. Also, at the rear of the upper end of the apron 14C, this apron 14C
A sill support 18 for fixing the sill support 18, a floor support frame 6 for fixing the sill support 18 and a sill 19 fixed to the sill support 18 are shown. A car floor 20 is shown on the floor support frame 6 among them.

In the elevator car in which the apron 14C in which the V-shaped groove is formed is vertically provided from the front end of the sill of the car, as in the first and second embodiments, the car descends. As shown by arrows A3, B3, and C3 in FIG.
, The velocity of the airflow on the surface of the car door 8 can be reduced, and the vortex generated by the opening and closing mechanism 12 on the surface of the car door can be reduced.

Therefore, not only the wind noise caused by the vortex can be reduced, but also in the same manner as in the above-described embodiment, the rigidity of the apron 14C can be increased, the vibration can be reduced, and the weight can be reduced. Can also be planned.

FIG. 7 shows a fourth embodiment of the elevator car of the present invention.
FIG. 9 is a partial perspective view showing an embodiment of the present invention, and particularly corresponds to FIG. 3 shown in the second embodiment, and corresponds to another example of claim 2 and claim 4. FIG. 8 is a longitudinal sectional view showing an apron described below with reference to FIG. 7 and a mounting portion thereof.

FIGS. 7 and 8 differ from FIGS. 3 and 4 shown in the second embodiment in that the projections on the surface of the apron are formed in a V-shape when viewed from the front.
That is, an apron 14D whose outer shape as viewed from the front is the same as the apron 14F shown in FIGS. 11 and 12 has a V-shaped projection as viewed from the front, and a vertical cross-section similar to that of FIG. 16B are formed in six rows vertically.

The lower end of the apron 14D is bent rearward at an acute angle to form a bent portion 14a. Also, at the rear of the upper end of the apron 14D, this apron 14D
A sill support 18 for fixing the sill support 18, a floor support frame 6 for fixing the sill support 18 and a sill 19 fixed to the sill support 18 are shown. A car floor 20 is shown on the floor support frame 6 among them.

In an elevator car in which the apron 14D having the projections formed in the form of arrow blades is vertically provided from the front end of the sill of the car, the lowering of the car causes the arrows A4 and B in FIG.
4, C4, the traveling wind rising relatively to the car flows in the direction of both sides of the car by the projection 16B,
The velocity of the airflow on the surface of the car door 8 can be reduced, and the vortex generated by the opening / closing mechanism 12 on the surface of the car door can be reduced.

Therefore, not only the wind noise caused by the vortex can be reduced, but also in the same manner as in the above-described embodiment, the rigidity of the apron 14D can be increased, the vibration can be reduced and the weight can be reduced, in combination with the bent portion 14a at the lower end. Can also be planned.

FIG. 9 shows a fifth embodiment of the elevator car of the present invention.
FIG. 14 is a partial perspective view showing the fifth embodiment, corresponding to FIG. 7 shown in the fourth embodiment and corresponding to claims 5 and 4. FIG. FIG. 10 is a longitudinal sectional view showing an apron described below with reference to FIG. 9 and a mounting portion thereof.

FIGS. 9 and 10 differ from FIGS. 7 and 8 shown in the fourth embodiment in that a vibration damping material 17 is attached to the rear surface of the apron with an adhesive. That is, as in FIGS. 7 and 8, a vibration damping member 17 made of a plastic plate is joined to the entire rear surface of the apron 14E having the V-shaped projection 16B formed on the surface.

The lower end of the apron 14E is also bent rearwardly at an acute angle to form a bent portion 14a, and the left and right slopes as viewed from the front are bent rearwardly at an acute angle.
b is formed.

A floor frame 6 for fixing a sill holder for fixing the apron 14E is provided at the rear of the upper end of the apron 14E.
A sill support 18 at the front end of the floor support frame 6 and a sill 19 fixed on the sill support 18 are shown. A car floor 20 is illustrated on the floor support frame 6.

As described above, even in the elevator car in which the apron 14E having the projections formed in the shape of arrow blades and the damping material 17 joined to the back surface is suspended from the front end of the sill of the car, the car is lowered as shown in FIG. As shown by arrows A5, B5, and C5, the traveling wind rising relative to the car flows in both directions of the car by the projections 16B, so that the speed of the airflow on the surface of the car door 8 is reduced, and Not only can the vortex generated by the opening / closing mechanism 12 on the surface be reduced, but even if vibration occurs, the vibration can be suppressed by the damping material 17.

Therefore, not only the wind noise due to the vortex can be reduced, but also the rigidity of the apron 14E can be increased, and the vibration and noise can be reduced in combination with the bent portions 14a and 14b at the lower end and the damping material 17. it can. Note that the vibration damping material 17 may be joined to the back surface of the apron shown in FIGS.
The shape of the apron viewed from the front may be an inverted triangle instead of an inverted trapezoidal shape.

[0046]

According to the invention corresponding to the first aspect, in an elevator car in which an apron is vertically installed below a sill of an elevator car, an apron is formed with an arrow blade-like groove or projection. A part of the traveling wind that rises from the apron to the front of the car door as the car descends is diverted to the left and right of the car door by arrow-shaped grooves or protrusions, reducing wind noise associated with high speed, An elevator car that can eliminate anxiety and discomfort can be obtained.

According to the invention corresponding to claim 2, in an elevator car in which an apron is vertically provided below a sill of an elevator car, a V-shaped groove or protrusion is formed in the apron, Part of the traveling wind rising from the apron to the front of the car door by lowering the car was diverted to the left and right of the car door by V-shaped grooves or protrusions, so that wind noise accompanying high speed was reduced, and passengers An elevator car that can eliminate anxiety and discomfort can be obtained.

According to the third aspect of the present invention, the vertical cross-sectional shape of the groove or the projection is U-shaped, semi-circular, V-shaped, or a continuous waveform, so that the car can be lowered from the apron to the car by lowering the car. A part of the traveling wind rising above the front of the door was diverted to the left and right of the car door by a U-shaped or semi-circular or V-shaped groove or projection, so the wind noise caused by speeding up was reduced. It is possible to obtain an elevator car capable of reducing the number of passengers and eliminating anxiety and discomfort of passengers.

According to the invention corresponding to claim 4, by forming the bent portion at the lower portion of the apron, the traveling wind flowing from the back surface of the lower end of the apron to the lower surface of the car when the car descends is reduced by the bent portion of the apron. Since the wind noise is reduced smoothly and the apron is increased in rigidity to reduce vibration, it is possible to obtain an elevator car that can eliminate anxiety and discomfort of passengers.

According to the fifth aspect of the present invention, by attaching the vibration damping material to the rear surface of the apron, the vibration of the apron generated by the traveling wind accompanying the lowering of the car is suppressed by the vibration damping material. Since the noise of the wind and the vibration of the apron due to the construction are reduced, it is possible to obtain an elevator car that can eliminate the anxiety and discomfort of the passengers.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a first embodiment of an elevator car of the present invention.

FIG. 2 is a longitudinal sectional view showing the apron shown in FIG. 1 and a mounting portion thereof.

FIG. 3 is a partial perspective view showing a second embodiment of the elevator car of the present invention.

FIG. 4 is a longitudinal sectional view showing the apron shown in FIG. 2 and a mounting portion thereof.

FIG. 5 is a partial perspective view showing a third embodiment of the elevator car of the present invention.

FIG. 6 is a longitudinal sectional view showing the apron shown in FIG. 5 and a mounting portion thereof.

FIG. 7 is a partial perspective view showing a fourth embodiment of the elevator car of the present invention.

FIG. 8 is a longitudinal sectional view showing the apron shown in FIG. 7 and a mounting portion thereof.

FIG. 9 is a partial perspective view showing a fifth embodiment of the elevator car of the present invention.

FIG. 10 is a longitudinal sectional view showing the apron shown in FIG. 9 and a mounting portion thereof.

FIG. 11 is a perspective view showing an example of a conventional elevator car.

FIG. 12 is a partially enlarged perspective view showing the operation of a conventional elevator car.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Car frame, 2 ... Car room, 3 ... Upper beam, 4 ... Standing frame, 5 ... Lower beam, 6 ... Floor support frame, 7 ... Post, 8 ... Car door, 9 ... Roller guide, 10 ... Arm, 11 ... Emergency stop device, 12 ... Door opening / closing mechanism,
13 ... main rope, 14A, 14B, 14C, 14D, 14E, 14F ... apron, 14a ... bent portion, 15A, 15B ... groove, 15a ... bent portion,
16A, 16B: Projection, 17: Damping material, 18: Sill receiver, 19: Sill, 20: Basket floor.

Claims (5)

[Claims] 1. An elevator car in which an apron is suspended below a sill of an elevator car, wherein an apron-shaped groove or projection is formed in the apron. 2. An elevator car having an apron suspended below a sill of the elevator car, wherein the apron is formed with a V-shaped groove or projection. 3. The elevator car according to claim 1, wherein the vertical cross section of the groove or the projection has a U-shape, a semicircle, a V-shape, or a continuous waveform. 4. The elevator car according to claim 1, wherein a bent portion is formed at a lower portion of the apron. 5. The elevator car according to claim 1, wherein a damping material is attached to a back surface of the apron.