JPH03256990A - Elevator cage - Google Patents

Abstract

PURPOSE:To attach an air rectifier cover to an elevator cage without enlarging a building construction by attaching each air rectifier cover, rectifying an air noise generated with the travel of an elevator cage, in both upper and lower parts of the elevator cage expandably in the vertical direction. CONSTITUTION:When an elevator cage body 4 passes through the lowermost floor, a plunger 11b of a shockabsorber 11 is inserted into a through hole 27a of an elastic body 27 and the inside of a support cylinder 26. When the cage body 4 further goes down, an elastic body 25 attached to the lower end of a support column 24 collides with a top face of a plunger 11a, thereby compressing it. Such a force as pushed upward by dint of hydraulic pressure in the shockabsorber 11 is added so that an impact is relieved. On the other hand, at this time, the elastic body 27 installed in the lower part of an air rectifier 23 at the movable side collides with a top face of a cylinder 11a of the shockabsorber 11 whereby this elastic body is pushed upward. Accordingly, both ring grooves 24a, 24b of the support column 24 separate each from ring projections 26a, 26b of the support cylinder 26, and the support column 24 goes down along an inner surface of a support cylinder 6, thus an air rectifier cover 22 at the fixed side also goes down so as to cover the air rectifier cover 23.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an elevator car in which wind regulating covers are provided at the upper and lower parts of the elevator car to suppress wind noise generated as the elevator car runs. Technology] In recent years, as buildings have become taller, elevator speeds have also tended to increase. In the case of such high-speed elevators, when the balance weights of the elevators pass each other, when the elevators pass over the front edge that protrudes from the entrance/exit of the hall toward the hoistway, or when the elevators When the elevator passes over a part that protrudes from the surface, the cross section of the air path between the elevator and other equipment changes suddenly, causing pressure fluctuations in the air. Further, even if there is no such change in the cross section of the air passage, since the shape of the elevator car is rectangular, large air turbulence occurs at the corners of the elevator car, resulting in pressure fluctuations. This becomes wind noise and is transmitted into the elevator car, giving passengers a sense of discomfort and anxiety.

As a means to solve this problem, for example,
There is a technique published in Publication No. 2362.

On the other hand, the number of observation elevators with glass on one side of the hoistway is increasing, and in this case, the appearance of the elevator car is important because the elevator car can be seen rising and falling from the observation deck or outside the building. An example of this type of observation elevator is the technology disclosed in Japanese Utility Model Application Publication No. 167454/1983.

FIG. 7 is a side view showing the external appearance of a viewing elevator car equipped with a conventional air conditioning cover.

In the figure, (1) is the hoistway, (2) is the landing door, and (3
) is an observation glass fitted into an observation deck or a part facing the outside of a building, and forms the negative part of the hoistway (1). (
4) is an elevator car body that moves up and down in the hoistway (1), (5) is a glass window provided in the elevator car body (4) facing the observation glass (3), and (6) is a window for passengers. , (7) is a substantially spindle-shaped upper air conditioning cover that is attached to the upper part of the elevator car body (4) and narrows upward;
Similarly, (8) is a substantially spindle-shaped lower air conditioning cover that is attached to the lower part of the elevator car body (4) and narrows downward. (9) is a guide roller attached to a corner of the elevator car body (4), and (10) is a hoisting rope connected to the upper part of the elevator car body (4). (
11) is a shock absorber installed at the bottom (1a) of the hoistway (1), and is used for some reasons such as when the rope slip limit is exceeded due to overcrowding, or when the brake torque is not produced. If the limit switch does not work and the elevator car goes past the bottom floor and descends into the hoistway pit, this is a safety device that will stop the elevator car with as little impact as possible. (11
a) is the cylinder of the buffer (11), (11b) is the plunger that moves up and down within the cylinder (11a), (1
1c) is a buffer stand.

Next, the operation of the conventional elevator car configured as described above will be explained.

When the elevator car body (4) rises, the air above it gradually flows around the elevator car body (4) along the surface of the upper air conditioning cover (7), so that the air around the elevator car body (4) The airflow is not suddenly disturbed, and the generation of wind noise is suppressed.

On the other hand, when the elevator car body (4) descends,
The lower wind regulating cover (8) works in exactly the same manner as above to suppress wind noise.

In this way, it is possible to eliminate the discomfort and uneasiness of the passengers (6) caused by the high-speed lifting and lowering of the elevator car body (4).

In addition, the upper airflow cover (7) and the lower airflow cover (8)
Because it has a gently sloping spindle shape, it also gives an excellent exterior image to the observation deck and people outside the building.

By the way, if for some reason the elevator car body (4) goes too far past the lowest floor and falls to the bottom (1a) of the hoistway (1), the shock is alleviated by the shock absorber (11).
The safety of the passenger (6) is ensured. Further, when the top floor is exceeded and the top floor is pushed up, a counterweight (not shown) rides on a similar shock absorber located directly below, and the impact is alleviated. Further, the technology for the front sagging device of an elevator car, JP-A-53-42357 and JP-A-53-47650, also relates to this.

[Problems to be Solved by the Invention] Since the conventional elevator car is configured as described above, when the elevator car main body (4) is pushed down due to an abnormality in the elevator, the The lower end of the lower air conditioning cover (8) is connected to the bottom of the hoistway (1) (
1a) will collide with the buffer (11). However, since the lower air conditioning cover (8) was originally installed to suppress the wind noise generated as the elevator car body (4) runs, it does not have exceptional strength, and the shock absorber ( 11) Easily deformed or damaged by collision.

In addition, when the elevator car body (4) is pushed up due to an abnormality, a counterweight (not shown) rides on a similar shock absorber directly below it and the impact is alleviated, but the upper part of the elevator car body (4) Since the upper air regulating cover (7) attached to the shaft is long in order to enhance the effect of suppressing wind noise, it collides with the top of the hoistway (1).

Also, even if there is no push-down or push-up due to an abnormality,
Upper ventilation cover (7) to further enhance wind noise suppression effect
When the lower air rectifying cover (8) is made longer and more acutely angled, the shock absorber (11) or the hoistway (
It will interfere with 1).

For this reason, the upper air conditioning cover (7) and the lower air conditioning cover (8)
) or the hoistway (1) will be damaged, so the distance between the elevator car body (4) and the top and bottom of the hoistway (1) must be increased, making it necessary to enlarge the structure of the building. This led to an increase in construction costs.

Therefore, the present invention has been developed without increasing the size of the building structure.
An object of the present invention is to provide an elevator car that can be equipped with a wind regulating cover to suppress wind noise generated during travel.

[Means for Solving the Problems] The elevator car according to claim 1 is provided with air rectifying covers that rectify wind noise generated as the elevator car runs on the upper and lower parts of the elevator car so as to be expandable and retractable in the vertical direction. It is something that

In the elevator car according to claim 2, air rectifying covers for rectifying wind noise generated as the elevator car runs are attached to the upper and lower parts of the elevator car so as to be expandable and retractable in the vertical direction, and when the air rectifying covers are shortened. An opening is formed at the tip.

[Function] According to the first aspect, when the elevator car is normally running, the air conditioning cover is in an extended state, so that the air resistance generated as the elevator car runs is reduced, and wind noise is suppressed. On the other hand, since the air conditioning cover can be shortened in the vertical direction, neither the hoistway nor the air conditioning cover will be deformed or damaged without enlarging the structure of the building.

In claim 2, the function is similar to that in claim 1, and in particular, since an opening is formed at the tip when the air rectifying cover is shortened, this opening can be used for maintenance and inspection of the upper and lower parts of the elevator car. It also serves as a foothold.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

First Embodiment> First, a first embodiment of the present invention will be described based on FIGS. 1 and 2.

FIG. 1 is a partially cutaway side view of a main part of an elevator car according to a first embodiment of the present invention, and FIG. 2 is a main part showing a state in which the elevator car of FIG. 1 collides with a buffer at the bottom of a hoistway. FIG. In the figure, the same reference numerals as in FIG. 3 indicate parts that are the same as or correspond to the conventional components, so their explanation will be omitted here.

In the figure, (21) is a lower air conditioning cover attached to the lower part of the elevator car body (4), which has a substantially spindle shape that converges downward, and is horizontally divided into two at approximately the center in the height direction. (22) is a truncated conical fixed side lower air rectifying cover forming the upper half of the lower air rectifying cover (21) which is divided into two parts, and is fixed to the lower part of the elevator car body (4). (23) is the lower air rectifying cover divided into two parts (
21) is a conical movable lower air rectifying cover that forms the lower half of the movable side. (24) is a round bar-shaped support column attached to the central part of the lower surface of the elevator car body (4) so as to protrude downward, and it hangs down inside the fixed side lower air rectifying cover (22) and is attached to the movable side lower air rectifying cover (23). ) protrudes to the center of the inside. (24a) is an annular groove with a semicircular cross section formed on the upper outer periphery of the portion of the support column (24) that protrudes into the movable lower air conditioning cover (23); (24b) is also the support column (24); 24) is an annular groove with a semicircular cross section formed on the lower outer periphery of the part protruding into the movable lower air rectifying cover (23), and (25) is a rubber groove attached to the lower end of the support column (24). Alternatively, it is a disc-shaped elastic body made of plastic or the like. (26) is a support tube provided in the center of the movable lower air rectifying cover (23), and (26a) is the support tube (26a).
) is an annular projection with a semicircular cross section formed on the upper inner periphery of the support tube (26); (26b) is an annular projection with a semicircular cross section formed on the lower inner periphery of the support tube (26); ) is an annular elastic body made of rubber or plastic attached to the lower end of the support tube (26), and the diameter of the through hole (27a) in the center is the same as that of the cylinder (11) of the shock absorber (11).
The outer shape of the plunger (11a) is smaller than that of the plunger (11a), and the outer shape of the plunger (11b) is larger than that of the plunger (11b). That is, this through hole (27a)
The hole diameter of the plunger (
11b), but if it is too large, a large amount of air will flow into the support tube (26) from this through hole (27a), giving vibration to the elevator car body (4) and interfering with running. Therefore, the size should be kept to the minimum necessary.

The support column (24) is capable of vertically sliding within the support tube (26), and the annular groove (24a) of the support column (24)
) and the annular groove (24b) are located at positions facing the annular protrusion (26a) and annular protrusion (26b) of the support cylinder (26), respectively, so that they do not engage with each other during normal running of the elevator car body (4). A substantially spindle-shaped lower air regulating cover (21) is formed by the fixed lower air regulating cover (22) and the movable lower air regulating cover (23).

Note that the buffer (11) at the bottom (1a) of the hoistway (1) is erected coaxially with the support column (24).

In addition, the figure shows the elevator car body (4) with the lower air conditioning cover (21) attached to the lower part of the elevator car body (4).
Although not shown, a similar upper air rectifying cover is also attached to the upper part of the elevator car body (4).

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

When the elevator car body (4) normally runs, the annular projection (26a) and the annular projection (26b) of the support tube (26)
) are respectively engaged with the annular groove (24a) and the annular groove (24b') of the support column (24), and the movable side lower air rectifying cover (23
) is formed with a fixed side lower air regulating cover (22) via a support column (24) and a supporting tube (26) to form a substantially spindle-shaped lower air regulating cover (21) (see Fig. 1).

In this state, when the elevator car body (4) descends, the substantially spindle-shaped lower air rectifying cover (21) acts as a rectifying air cover as in the conventional example, and the air below it is transferred to the lower air rectifying cover (21). Since the airflow gradually flows along the surface of the elevator car body (4), the airflow around the elevator car body (4) is not suddenly disturbed, and wind noise is suppressed.

On the other hand, when the elevator car body (4) rises,
The upper wind regulating cover works in exactly the same way as above to suppress wind noise.

As a result, it is possible to eliminate the discomfort and uneasiness of the passengers (6) caused by the high-speed movement up and down of the elevator car body (4). In addition, wind resistance can be reduced and windage loss of the elevator can be reduced.

Next, there is some abnormality in the elevator, and the elevator car body (4) does not stop at the lowest floor, but descends further and the buffer installed at the bottom (1a) of the hoistway (1) ( 11) The case of collision will be explained.

When the elevator car body (4) passes the lowest floor, the plunger (11b) of the buffer (11) first hits the elastic body (
27) through the through hole (27a) and the support tube (26), and when the elevator car body (4) further descends, the elastic body (25) attached to the lower end of the support column (24)
collides with the upper surface of the plunger (llb) and presses it. Then, the hydraulic pressure of the shock absorber (11) applies an upward pushing force to alleviate the impact.

On the other hand, at this time, the elastic body (27) attached to the lower end of the movable lower air conditioning cover (23) also collides with the upper surface of the cylinder (11a) of the shock absorber (11) and is pressed upward.

Therefore, the annular groove (24a) of the support column (24), the annular groove (
24b> are annular protrusions (26a) of the support tube (26), respectively.
), the support column (24) comes off the annular projection (26b) and descends along the inner surface of the support cylinder (26). Along with this,
The fixed side lower air regulating cover (22) also descends to cover the movable side lower air regulating cover (23) supported by the support tube (26). That is, the height of the lower air regulating cover (21) is reduced by the amount that the fixed lower air regulating cover (22) and the movable lower air regulating cover (23) overlap.

In this way, the safety of the passenger (6) is ensured, and the lower air regulating cover (21) is replaced by the movable lower air regulating cover (
23) is housed inside the fixed side lower air rectifying cover (22) to reduce the impact force, so it will not be deformed or damaged by being crushed by the cylinder (11a) of the shock absorber (11). (See Figure 2).

Note that after the lower air regulating cover (21) is shortened, the movable lower air regulating cover (23) can be pushed down to return to its original position. Alternatively, a spring may be provided between the lower surface of the elevator car body (4) and the movable lower air rectifying cuckoo (23) to automatically return the elevator car to its original position. The same applies to the upper air rectification cup.

In addition, since these upper air conditioning cover and lower air conditioning cover have a substantially spindle shape, in the case of an observation elevator, they can give an excellent appearance image to people outside.

In this way, the elevator car of the above embodiment has an upper air conditioning cover and a lower air conditioning cover on the fixed side, which suppress the wind noise generated as the elevator car body (4) runs, on the upper and lower parts of the elevator car body (4). Lower air regulating cover (21) consisting of a cover (22) and a movable lower air regulating cover (23)
It is attached so that it can be expanded and contracted in the vertical direction.

Therefore, according to the above embodiment, when the elevator car main body (4) is pushed up to the top of the hoistway (1) or pushed down to the bottom (1a) due to an abnormality, the upper air conditioning cover and the lower air conditioning cover (21) are Since it can be shortened, it is possible to prevent deformation or damage to the upper air regulating cover, the lower air regulating cover (21), or the hoistway (1) without enlarging the structure of the building.

Second Embodiment Next, a second embodiment of the present invention will be described based on FIGS. 3 to 6.

FIG. 3 is a side view showing the ascending and descending state of the elevator car according to the second embodiment of the present invention, and FIG. 4 is a longitudinal sectional view showing the operation of the air conditioning cover of the elevator car according to the second embodiment of the present invention.
FIG. 5 is a vertical sectional view of the main part showing the air rectifying cover (-) in FIG. 4 in a fully closed state, and FIG. Since the same reference numerals as those in FIG. 7 are the same as or correspond to the conventional components, the explanation thereof will be omitted here.

In the figure, reference numeral (31) denotes an air rectification cover that is vertically symmetrically provided on the upper and lower parts of the elevator car body (4) and is formed into a hemispherical shape as a whole, and is divided into upper and lower halves by a horizontal plane. A fixed side air conditioning cover (32) is attached to the elevator car body (4) side of the air conditioning cover (31), and a pair of left and right movable side air conditioning covers (33) are further divided into two by a vertical plane on the opposite side. ) is installed. The movable side air conditioning cover (33) is connected to a cylinder (34) operated by hydraulic pressure provided at the upper and lower parts of the elevator car body (4) and the movable side air conditioning cover (33).
A pair of left and right connecting rods (35
) so that it slides to cover the outer peripheral surface of the fixed side air conditioning cover (32). That is, the two connecting rods (35) intersect at the fulcrum (35a) located approximately in the center, and the other end is connected to the plunger (35) of the cylinder (34).
The plunger (34a) is pivotally supported at the tip of the plunger (34a).
) rotates to the opposite side as the movable air conditioning cover (33) expands and contracts, so that the movable side air conditioning cover (33) can also be opened and closed left and right accordingly. Note that (31a) are openings formed at the upper and lower parts of the air regulating cover (31) when the movable air regulating cover (33) is opened. (36) is a detection switch that detects the position of the elevator car body (4) attached to the upper and lower side walls of the hoistway (1).

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

During normal midway travel, the plunger (34a) of the cylinder (34) is shortened, and the movable air conditioning cover (33) is fully opened via the connecting rod (35).

At this time, the air regulating cover (31) acts in the same manner as in the first embodiment to suppress wind noise generated as the elevator car body (4) moves.

On the other hand, when the elevator car body (4) approaches the top floor, the upper detection switch (36) detects the position of the elevator car body (4) and sends a signal to a control device (not shown). Then, this control device controls the cylinder (3
The plunger (34a) of 4) extends left and right and connects the connecting rod (
35) rotates left and right about the fulcrum (35a), the movable side air conditioning cover (33) also descends while sliding on the outer surface of the fixed side air conditioning cover (32). Then, when you reach the top floor, it will be fully opened. At this time, the height of the upper air regulating cover (31) becomes A3, which is shortened by A2 from A1 when fully opened, as shown in FIG.

This ensures the required top clearance AO.

Conversely, when the elevator car body (4) approaches the lowest floor, the lower detection switch (36) detects the position of the elevator car body (4) and sends a signal to a control device (not shown). Then, in the same way as when approaching the top floor, the movable side air conditioning cover (33) is moved to the fixed side air conditioning cover (32).
) rises while sliding on the outer surface of the Then, when you reach the bottom floor, it will be fully opened. At this time, the height of the lower air regulating cover (31) is shortened by 82 from 81 when fully opened to B3 as shown in FIG.

This allows for the required run-by BO with the buffer (11).
is ensured.

In this way, the architectural height is reduced to the minimum necessary.

By the way, in the maintenance and inspection of the upper and lower parts of the elevator car body (4), the work was difficult because there was no scaffolding because the air rectifier cover had an acute angle shape in the past.
Since the tip of the air conditioning cover (31) of this embodiment can be opened automatically or manually, this opening (31a) also serves as a foothold during maintenance and inspection, making the work easier. Further, this opening (31a) also serves as a rescue opening from the upper and lower parts of the elevator car body (4).

In this way, the elevator car of the above embodiment has air conditioning covers ( 31) is attached to be expandable and retractable in the vertical direction, and an opening (31a) is formed at the tip when the air regulating cover (31) is shortened.

Therefore, according to the above embodiment, the wind regulating cover (31)
Since this can be shortened, the air rectifying cover (31) can be attached without enlarging the structure of the building, similarly to the first embodiment, and construction costs can be reduced.

In particular, in this second embodiment, when the air conditioning cover (31) is shortened, an opening (31a) is formed at the tip.
The opening (31a) can be used as a scaffold during maintenance and inspection work on the upper and lower parts of the elevator car body (4), and the work can be easily carried out without having to provide a special workbench or relying on dedicated workers. can be done.

By the way, the upper air conditioning cover, the lower air conditioning cover (21), and the air conditioning cover (31) in each of the above embodiments are composed of two stages, a fixed side and a movable side. It is not limited to this, and it may be divided into three or more stages. Further, in the first embodiment, it is also possible to attach a coil spring along the inner surface of the air regulating cover without dividing it into a bellows type. In the latter case, automatic recovery is also possible. However, it is necessary to keep the irregularities on the side surfaces small enough to not cause turbulence in the air flow.

Then, the through hole (27a) of the elastic body (27) is inserted into the shock absorber (
11), it may be covered with a cover (blind cover) so that the part can easily come off when it hits the shock absorber (11).

Further, the annular projection (2) of the support tube (26) of the first embodiment is also
6a) and (26b) are formed integrally with the support tube (26), but when carrying out the present invention, the present invention is not limited to this, and annular rings are formed at predetermined locations on the support tube (26). A groove is provided, and an annular elastic body is fitted as a separate piece into the annular groove (24a) and annular groove (24b) of the support column (24).
) can also be a protrusion that engages with.

Further, although the air rectifying cover in each of the above embodiments has a substantially spindle shape, the present invention is not limited to this, and in particular, in the case of an observation elevator, various shapes may be used in consideration of the appearance. You can set the shape.

[Effects of the Invention] As described above, the elevator car of the invention of claim 1 has air rectifying covers that rectify the wind generated as the elevator car runs, which can be expanded and contracted in the vertical direction at the upper and lower parts of the elevator car. Since it is attached, the air conditioning cover can be shortened in the vertical direction, and without increasing the vertical dimensions of the hoistway, deformation or damage to the air conditioning cover or hoistway can be prevented, reducing construction costs. can do.

Further, since the elevator car of the invention of claim 2 has an opening formed at the tip when the air conditioning cover is shortened, this opening can be used as a scaffold during maintenance and inspection work on the upper and lower parts of the elevator car. This allows the work to be done easily.

[Brief Description of the Drawings] Fig. 1 is a partially cutaway side view of the essential parts of an elevator car according to a first embodiment of the present invention, and Fig. 2 shows the elevator car of Fig. 1 installed in a buffer at the bottom of a hoistway. FIG. 3 is a side view showing the elevator car in the ascending and descending state according to the second embodiment of the present invention; FIG. 4 is a side view showing the elevator car according to the second embodiment of the present invention. Fig. 5 is a vertical cross-sectional view of the main part showing the air regulating cover in the fully closed state in Fig. 4, and Fig. 6 is a longitudinal sectional view showing the main part of the air regulating cover in Fig. 4 in the fully open state. FIG. 7 is a side view showing the appearance of an observation elevator car with a conventional air conditioning cover attached. In the figure: 1: Hoistway 4: Elevator car 21: Lower air conditioning cover 22: Fixed side lower air conditioning cover 23: Movable side lower air conditioning cover 31: Air conditioning cover 31a: Opening 32: Fixed side air conditioning cover 33: Movable side air conditioning cover It is. In the drawings, the same reference numerals and the same symbols indicate the same or equivalent parts.

Claims (2)

[Claims] (1) The elevator car is equipped with an elevator car body that moves up and down in the hoistway, and air rectifying covers that are attached to the upper and lower parts of the elevator car so as to be expandable and retractable in the vertical direction, and that rectify the wind generated as the elevator car runs. An elevator car characterized by: (2) The elevator car according to claim 1, wherein the air regulating cover forms an opening at a tip when it is shortened.