CN114450245A

CN114450245A - Elevator installation

Info

Publication number: CN114450245A
Application number: CN202080068331.2A
Authority: CN
Inventors: 罗密欧·洛雅科诺
Original assignee: Inventio AG
Current assignee: Inventio AG
Priority date: 2019-09-30
Filing date: 2020-09-29
Publication date: 2022-05-06
Also published as: WO2021063962A1; EP4038006A1

Abstract

An elevator car (3) comprises a movable car closure (10) which is mounted on the car (3) so as to be movable in a rotatable manner by means of a horizontal pivot axis (9) and has a planar closure element (11) for blocking a gap between the car and a floor. The car baffle (10) extends over the entire width of the car (3) and has leg elements (14) which project away from the baffle elements (11), preferably at right angles, and which are each positioned laterally next to the car side wall (7). A deactivated position safety mechanism (15) for holding the car flap in the deactivated position and a blocking position safety mechanism (16) for holding the car flap in the blocking position are also provided.

Description

Elevator installation

Technical Field

The present invention relates to an elevator car according to the preamble of claim 1.

Background

An elevator installation for transporting people and goods comprises an elevator car which can be moved up and down in an elevator shaft. The elevator car can be moved by means of the drive unit via a support means, for example in the form of a support rope or a support belt. The car may get stuck between floors due to a malfunction or emergency stop. In such fault situations, the trapped people must be evacuated from the car to the next stopping position. In this case, a gap may be created between the underside of the car and the floor level, through which gap persons may fall into the shaft during evacuation. To avoid such an event, the car is equipped with a car stop.

For some time, elevator installations with reduced pit depth have become increasingly popular. In order to reduce the depth of the shaft pit, the car screen is designed to be movable. Pivotable and foldable car shutters are known from EP1118576a 2. The car baffle is adapted to the width of the door opening.

Disclosure of Invention

The object of the invention is therefore to avoid the disadvantages of the known solutions and in particular to propose an elevator car which is equipped with a car barrier of simple and inexpensive design and which makes it possible to evacuate people from the car in a safe manner.

This object is achieved by an elevator car having the features of claim 1. An elevator car is a component of an elevator installation for transporting people and goods vertically. An elevator apparatus includes: the elevator shaft and one or more elevator cars are movable up and down in the elevator shaft, preferably along guide rails. For the passengers and the goods to enter and exit the car, a shaft door is provided for each floor. The elevator car according to the invention has a movable car screen which is mounted on the car so as to be movable rotatably by means of a horizontal pivot axis and which has planar screen elements for blocking the gap between the car and the floor. The barrier element of the car barrier can be positioned in a deactivated position in a horizontal position below the car close to the bottom side of the car and in a blocking position pointing downwards in a vertical position. The car barrier can be designed in a simple manner by the car barrier extending at least over the entire width of the car with respect to its outer dimension or contour. The contour of the car is dictated by the car body, which defines an interior space for accommodating passengers and cargo. The car can have a front side with a car door, wherein the car door is provided with the aforementioned car barrier, and can also have a rear side opposite the front side and parallel car side walls connecting the front side and the rear side. Thus, the front side, the rear side and the two car side walls can form a cuboid car body together with the car bottom side and the car roof. The width of the car corresponds here to the distance between the parallel car side walls. Such a car barrier, which is far wider than conventional car barriers, can be connected to the car in a rotationally movable manner particularly easily and without great structural complexity.

A car stop mounted on the elevator car so as to be movable by a horizontal pivot axis in a rotatable manner can be moved between a deactivated position and a blocking position. The movable car barrier is particularly advantageous for elevator installations with low pit depths or for elevators without a shaft pit. The deactivated position corresponds to a normal operation position. In this inactive position, if the car is stuck between the floor levels, there is a gap between the car and the floor levels. In order to evacuate trapped persons from the car safely, this gap must be closed. For this purpose, the car barrier is moved downwards into the blocking position. The blocking position is a position for blocking a gap between the floor level and the underside of the car, so that persons are prevented from falling from the floor level into the elevator shaft through the open shaft door. In the blocking position, the baffle element extends generally parallel to the shaft wall on the shaft door side.

In a first embodiment, the car baffle has leg elements which project away from the baffle element, preferably at right angles. The baffle element and the two leg elements opposite each other have a U-shaped configuration in plan view. This shape results in a strong car closure, which also meets high stability requirements (e.g. EN 81-20: 2014). There are various regulations in the elevator industry that provide precise specifications for the design of car fenders. European Standard EN 81-20: 2014 in clause 5.4.5: the vertical length of the baffle must be at least 750 mm and the baffle must be designed stably so that the baffle 300N does not substantially fall under the horizontal point-like force.

The car screen is preferably designed such that, at least in the inactive position, the leg elements are each positioned laterally beside the car side wall. In the deactivated position, the respective leg element is therefore located on the associated car side wall on the outside.

The leg elements may be formed by or may comprise support profiles. Alternatively or additionally, the leg elements may be formed from, or may include, side-guards.

On the car, a deactivated-position safety mechanism for holding the car flap in the deactivated position and a blocking-position safety mechanism for fixing the car flap in the blocking position can be arranged. The safety mechanism loads or acts on the flap element in the deactivated position; the blocking position safety mechanism loads or acts on the one or more leg elements in the blocking position. The dead position safety mechanism and/or the blocking position safety mechanism can be designed to be operable or manually operable. The car door can thus be designed such that, after release or release of the safety mechanism in the blocking position by corresponding actuation or actuation, the car door can be transferred into the blocking position. The car flap can be held pre-biased in the inactive position by means of a spring mechanism, so that after releasing or releasing the inactive position safety mechanism, the car flap can be reliably brought into the blocking position due to the opening force exerted by the spring mechanism.

The safety mechanism can comprise at least one pawl mounted on the car, which pawl can engage with the rear end or the lower end of the flap element, preferably in a latching manner, in order to hold the car flap in the inactive position. The blocking position safety mechanism can also comprise at least one pawl mounted on the car, which pawl can engage in a preferably latching manner with the upper or rear end of the respective leg element in order to fix the car flap in the blocking position.

It may be advantageous for the car to be equipped with a pair of pawls for forming a deactivated position safety mechanism or a blocking position safety mechanism. Each car side wall may be provided with a pawl, respectively, to form a deactivated position safety mechanism or a blocking position safety mechanism. Corresponding detents can be arranged on the car side wall in the region of the car underside 6.

If the car screen has a screen element, it can be advantageous if the screen element and the skirt are integrally connected to one another. In this case, it is particularly advantageous if the car screen comprising the screen element and the skirt panel is produced from a single or single cut-out piece of sheet metal. Such an integrated component can be easily manufactured by a stamping and bending method.

Drawings

Further individual features and advantages of the invention emerge from the following description of an embodiment and the accompanying drawings. Wherein:

fig. 1 shows a greatly simplified illustration of an elevator installation with an elevator car according to the invention, with the car barrier in the deactivated position;

fig. 2 shows the elevator installation from fig. 1, with the car barrier of the elevator car in the blocking position;

fig. 3 shows a perspective view of an elevator car with the car barrier in the deactivated position, an

Fig. 4 shows the elevator car with the car barrier in the blocking position.

Detailed Description

Fig. 1 shows an elevator installation designated 1 for a multi-storey building. The building has an elevator shaft 2 or, if desired, a plurality of elevator shafts. The elevator installation 1 shown here comprises a car 3 which can be moved vertically up and down in an elevator shaft 2 and which serves to transport people or goods to the individual floors. The car 3 has a front side with a car door 5, a back side 8 opposite the front side, and parallel car side walls 7 connecting the front and back sides. The front, the back 8 and the two car side walls 7 form a cuboid car body together with the car bottom side and the car roof. Each floor is assigned a shaft door 4. In general, the elevator installation has, in addition to the car 3, a counterweight, a support means and a drive, which are not shown here for the sake of simplicity and better overview. A drive means, such as a drive wheel drive, drives one or more load bearing elements, such as belts, ropes, so that the car 3 and the counterweight move oppositely. Guide rails (also not shown here) are provided in the elevator shaft 2 for guiding the car 3.

A special movable car stop 5, which will be described in more detail below, is arranged below the car 3. A car screen 10 is mounted on the car 3 so as to be movable in a rotatable manner by means of a horizontal pivot shaft 9. In fig. 1, the car barrier is in the inactive position in the vicinity of the car 3, in which the car barrier is normally in this inactive position. The car baffle is in the deactivated position, notably in a horizontal position below the car 3 in the vicinity of the car bottom side 6. The car baffle 5 is brought into the blocking position only in special situations, for example, when emergency evacuation of people from the car 3 takes place. Fig. 1 shows the car 3 in a position between floors where such emergency evacuation may be needed. In order to enable a safe departure of the car 3 to the next floor, the car baffle 5 must be transferred from the deactivated position shown in fig. 1 to the blocking position. The above-described transfer process starts after the safety gear 15 for holding the car barrier 5 in the deactivated position has been triggered. The car barrier 5 falls downwards in pivoting movement about the pivot axis 9. A spring mechanism (not shown) is responsible for assisting the opening movement until the car stop 5 finally reaches the blocking position shown in fig. 1. The blocking position is a position where the barrier 5 blocks a gap between the car 3 and the floor surface. In the blocking position, the car screen 5 or a planar screen element designated 11 is directed downwards in the vertical position to actually block the gap. In the blocking position, the baffle element 11 extends substantially parallel to the shaft wall on the shaft door side.

The safety mechanism 15 for holding or fixing the car barrier 5 in the deactivated position is hereinafter referred to as "deactivated position safety mechanism". In order to fix the car closure in the blocking position, a safety mechanism designated 16, which is designed in the same way, is used; for these safety mechanisms 16, the term "blocking position safety mechanism" is used below. The inactive position safety mechanism 15 and the blocking position safety mechanism 16 can be designed to be operable or manually operable. As shown in the present embodiment, the deactivated-position safety gear 15 comprises a pawl which is fitted on the car 3 in the region of the car underside 6 and is mounted pivotably. In the rest position, the pawl engages with the rear end of the flap element 17. The car 3 is preferably equipped with a pair of pawls to form the deactivation position safety mechanism 15, each pawl being arranged on the car side wall 6 in the region of the car bottom side 6. A pawl for forming the blocking position safety mechanism 16 is fitted on the car 3 closer to the door sill.

The car baffle 10 preferably has leg elements 14 which project at right angles away from the baffle element 11, the leg elements 14 being positioned laterally next to the car side wall 7 in each case. Thus, the car baffle 10 extends over the entire car width of the car 3 (see fig. 3/4 below). Thus, the car baffle 10 is adapted to the distance between the parallel car side walls 7. Each leg element 14 has a support profile 13 and a side guard 12. The detent for the blocking position safety means 16 can engage with the upper end 18 of the support profile 13.

Fig. 3 and 4 show a further elevator car 3 with a movable car barrier 10. The car baffle 10 according to the second embodiment differs from the above-described car baffle only in that the leg elements 14 of the car baffle 10 are formed by side guards 12. No supporting profile is used here. The baffle element 11 and the skirt 12 can be made from a single cut piece of sheet metal and form an integrally interconnected bent part. As can be seen from fig. 3, in the deactivated position the respective leg element 14 or skirt 12 rests on the outside against the respective car side wall 7 at a small distance.

Claims

1. An elevator car (3) with a movable car barrier (10) which is mounted on the car (3) so as to be movable in rotation by means of a horizontal pivot axis (9) and which has a planar barrier element (11) for blocking a gap between the car and a floor, characterized in that the car barrier (10) extends at least over the entire width of the car (3) with respect to the outer dimension or outer contour of the car.

2. An elevator car (3) as claimed in claim 1, characterized in that the car baffle (10) has leg elements (12, 13) which project away from the baffle element (11), preferably at right angles.

3. An elevator car (3) as claimed in claim 2, characterized in that the leg elements (12, 13) are each positioned laterally beside a car side wall (7).

4. An elevator car (3) according to claim 2 or 3, characterized in that the leg element is formed by a support profile (13) or comprises a support profile (13).

5. Elevator car (3) according to any of claims 2 to 4, characterized in that the leg element is formed by a side guard (12) or comprises a side guard (12).

6. An elevator car (3) as claimed in any of claims 2 to 5, characterized in that a deactivated-position safety mechanism (15) for holding the car screen in the deactivated position and a blocking-position safety mechanism (16) for holding the car screen in the blocking position are arranged on the car (3), wherein the deactivated-position safety mechanism (15) acts on the screen element (11) in the deactivated position and the blocking-position safety mechanism (16) acts on the leg element or leg elements (12, 13) in the blocking position.

7. An elevator car (3) as claimed in claim 6, characterized in that the deactivated position safety gear (15) comprises at least one pawl fitted on the car (3), which at least one pawl can engage with the rear side end or the lower end of the flap element (17).

8. An elevator car (3) as claimed in claim 6 or 7, characterized in that the blocking position safety gear (16) comprises at least one pawl fitted on the car (3) which can engage with the upper or rear side end (18) of the respective leg element (12, 13), respectively.

9. Elevator car (3) according to any of claims 5-8, characterized in that the baffle element (11) and the side guard (12) are integrally connected to each other and are preferably made of a single cut piece of sheet metal.