RU2458845C2 - Device for manual adjustment of long object vertical displacement - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to machine building. Proposed device comprises device 22 furnished with brake element 34 and element 26 to adjust speed of element displacing vertically, for example, elevator bearing element 32 in mounting of haulage cables. Brake element 34 may be displaced into stop position whereat vertically displacing element 32 is locked by brake lining and guide element. First input element to displace brake element from stop position comprises foot pedal to vary position of said element. Speed adjustment element 26 comprises strap to interact with element 32 in manual handling of the handle to shift said strap relative to the base of device 22.

EFFECT: ease of control.

12 cl, 4 dwg

Description

FIELD OF THE INVENTION

The present invention relates to mechanical engineering, in particular to devices for controlling the movement of vertically passing elements such as a traction cable during installation, for example, in elevator systems.

State of the art

Part elevator systems include traction ropes designed to suspend the elevator car and counterweight in the elevator shaft. Traction ropes also provide the possibility of placing the elevator car in a predetermined position in the shaft.

Installation of traction ropes of the elevator system can be difficult. One of the problems facing installers is that the weight of the traction rope (for example, a steel rope, as well as a cable or a ribbon cable) tends to drag one end of the rope down and the other end up. Depending on the position of the rope or cable in the shaft relative to the driving pulleys, the position of the cabin and the counterweight, the part closest to the installer may tend to move up or down. In both cases, it is important to maintain control over the position of the traction rope in the elevator shaft.

After using the elevator system for some time, it may be necessary to replace one or more load-bearing elements included in the set of elevator traction ropes. A common method is to splicing a new load bearing member with an existing bearing member of the elevator system. By manipulating the old load-bearing element, a new load-bearing element is pulled around the pulleys in the elevator shaft. When carrying out this operation, it is important to be careful and maintain control over the load-bearing element of the elevator system. The so-called slipped rope, which actually falls freely along the elevator shaft, can damage the elevator system and, at the very least, cause inconvenience to the installer, who must pick up the fallen rope and re-route it properly in the elevator shaft (for example, through drive pulleys, etc. .).

The closest analogue of the claimed invention is a device for manually adjusting a vertically extended element of an elevator system, comprising a base configured to be mounted in a predetermined position, an element for controlling the speed of the extended element relative to the base, mounted movable relative to the base and configured to selectively contact the element with the extended element , brake element installed in the stop position of the movement of the extended element and relative to the base, in the absence of bias by the operator, the first input element adapted for manual movement to regulate the position of the brake element (34), and the second input element disclosed in the copyright certificate SU 660913.

There are other options that require such control over an extended, vertically extending element. In various situations, different suspension systems are used. In many of them, the same problems arise that require maintaining proper control over the extended element.

The purpose of this technical solution is to develop a device that will help the operator maintain control over a vertically extended element, such as a traction rope, chain or load bearing element, during its installation.

Disclosure of invention

To achieve the claimed technical result, a device for manually adjusting a vertically extended element of an elevator system is claimed, comprising a base configured to be mounted in a predetermined position, an element for controlling the speed of the extended element relative to the base, made movable relative to the base, and set to select a contact of said element for regulation with extended element, brake element installed in the stop position Nia elongated element relative to the base in the absence of input of the biasing influence of the operator, the first input member is adapted for manual movement in order to adjust the position of the braking element, the second input element adapted for manual movement to change the position of the speed control member and comprising a handle. The device may contain a lever associated with the brake element and installed with the possibility of its displacement to the above stopping position, while the first manual input element is connected to the lever and installed with the possibility of shifting the lever at a choice from the specified stopping position. The device may have a spring to bias the brake element to the above stopping position. The device may include a guide element mounted on the base with the possibility of the direction of the extended element when it moves relative to the base, while the extended element is locked between the brake element and the guide element when the brake element is in the above stopping position. The specified guide element can be made of plastic, and the brake element is made of friction material. The guide element may comprise at least one roller. At least one element from the group of guide and brake elements may have a profile corresponding to the external profile of the extended element. The device may comprise a first handle holder on one side of the aforementioned element for controlling speed, a second handle holder on the other side of the element, the handle being optionally fixed either to the first holder or to the second holder. The device may include a mounting clip for fixing the base on a given surface. The mounting clamp and the base can be jointly installed with the possibility of fixing the base in a fixed position relative to the structural element on the elevator system cabin. The aforementioned element for controlling the speed may include a plastic block for contact with the extended element. The aforementioned extended element may contain a loaded bearing element of the elevator system.

Consider the main points of a technical solution. An exemplary apparatus for controlling a vertically extending member comprises a base adapted to be secured in a working position. The speed control element is movable relative to the base to create optional contact with the vertically passing element and to control the speed at which the vertically passing element moves relative to the base. The brake element is displaced to the braking position (stop position) to prevent the movement of the vertically passing element relative to the base. When the user applies an input action sufficient to overcome the bias, the brake element will allow the vertically passing element to move relative to the base. The brake element is connected to the foot pedal, which the operator can manipulate to allow the vertically extending element to move relative to the base. In any case, depressurizing the foot pedal (accidental or intentional), the brake element automatically moves to the stop position and prevents any movement of the vertically extending element relative to the base. The speed control element may be associated with a handle adapted to be moved by the user's hand. Appropriate manipulation of the handle makes it possible to move the brake element relative to the vertically passing element. The increase in pressure on the vertically passing element due to manual manipulations of the handle may correspond to a decrease in the speed with which the vertically passing element moves relative to the base. Such a device is especially suitable for securing it in the required position at the top of the elevator car, so that the operator can be on top of the car for mounting traction ropes, while maintaining the required control over the movement of the load bearing element. Various properties and advantages of the present invention will become apparent to those skilled in the art from the following detailed description. The drawings attached to the detailed description may be presented as follows.

Brief Description of the Drawings

Figure 1 schematically shows the layout according to one of the embodiments of the present invention, which is applicable when installing, for example, traction ropes of the elevator.

Figure 2 is a schematic perspective view illustrating one embodiment.

FIG. 3 is a cross-sectional view illustrating the embodiment of FIG. 2.

4 is a cross-sectional view illustrating another exemplary embodiment of the invention.

The implementation of the invention

The devices considered as an example allow a person to maintain control over the movement of a vertically passing element during, for example, installation of elevator traction ropes. The options presented include speed and stop control elements, providing improved control during the installation of traction ropes. Using the device made according to this invention, it is possible to control various types of extended, vertically passing elements. The load-bearing element of the elevator and the installation of the traction ropes of the elevator should be considered as one example of the use of the disclosed embodiments of the device.

Figure 1 schematically shows the layout 20, including a device 22, mounted in a predetermined position on the elevator car 24. In one embodiment, the device 22 is fixed in a fixed position relative to the selected frame element of the elevator car 24. The device 22 allows a person 30 to regulate the movement of a vertically passing element, which in this case is a load-bearing element 32 (for example, a traction rope or a ribbon cable), relative to the device 22 when mounting the traction ropes. In the presented embodiment, the device 22 contains a brake element 34, which performs the function of preventing the movement of the part of the load bearing element 32, conjugated with the brake element 34. In one embodiment, the brake element 34 is always shifted to the stop position of the extended element (32) relative to the base (40 ), in which it interacts with a part of the load-bearing element 32, to prevent the movement of this element relative to the device 22. In the absence of a mechanical input, the device Considering this displacement, the brake element 34 remains in the stopped position of the movement of the extended element (32) relative to the base (40). In the presented embodiment, the person 30 applies a mechanical input action (for example, applies force), stepping on the corresponding part of the device 22 for removing the brake element 34 from a stop position. Whenever a person 30 deliberately or accidentally relieves foot pressure from the brake element 34, the brake element 34 automatically moves to a stop position to prevent the load bearing member 32 from moving relative to the device 22. Due to this, the brake element 34 effectively prevents the carrier from getting out of control loading element 32 and slipping it into the elevator shaft in an uncontrolled or undesirable manner.

In the presented embodiment, the device 22 also contains a speed control element 36, which can be used to change the speed at which the load-bearing element moves relative to the device 22. In the presented embodiment, the speed control element 36 can be manually manipulated by a person 30 to achieve the required degree of speed control. In this embodiment, the speed control element can be controlled by hand, while the brake element 34 is controlled by the foot. The above combination of the speed control element 36 and the brake element 34 provides improved control of the load bearing element 30 during the installation of the elevator traction ropes.

In FIG. 2 and 3 show another embodiment of device 22. This embodiment includes a base 40 adapted to be fixed in a fixed position. In this embodiment, the clamping elements 42 fasten the base 40 with the structural element 44. In one embodiment, the structural element 44 is a transverse beam of the frame of the elevator car. In another embodiment, structural member 44 may be, for example, a guide or frame element of an elevator shaft door.

An exemplary base 40 has an opening 50 through which a load bearing member 32 is passed, which is manipulated during installation of the traction ropes. The protection 52 is adapted to prevent any unwanted objects from entering the hole 50 during the installation of the traction ropes. This embodiment includes a guide member 54 for guiding the load bearing member 32 as it moves relative to the base 40. In this embodiment, the guide member 54 comprises a group of rollers rotating when the movement of the load bearing element 32, if he is in contact with the guide element 54.

In this embodiment, the brake element 34 comprises a brake pad 60 located so as to come into direct contact with its outer surface with the load bearing member 32 when the brake element 34 is in the stopped position. 3, the brake element 34 is not in a stopping position, and the load bearing member 32 is able to move relative to the base 40. In one embodiment, the brake pad 60 contains material used in other elevator assemblies, for example, as a brake used to stop the cab in a predetermined position in the elevator shaft.

In the presented embodiment, the brake shoe 60 is mounted on a lever 62, mounted to rotate around the axis 64 on the base 40. In the embodiment shown in Fig.3, the spring 66 biases the lever 62 in the direction (up, as shown in this drawing), wherein the brake shoe 60 is pressed against the load bearing member 32 when the brake member 30 is in the stopped position. In the embodiment of FIG. 3, when the brake element 34 is in the stopped position, the load bearing element 32 is sandwiched between the brake shoe 60 and the guide element 54.

In one embodiment, the guide member 54 comprises resilient material so that it does not cause wear to the outer surface of the load bearing member 32. In one embodiment, the brake pad 60, guide member 54 or both have a profile that matches the outer contour of the load bearing element 32. For example, if the load bearing element is a rope of circular cross section, at least either the brake lining or the guide element 54 have a concave profile corresponding to the circumference loi outer surface of the load bearing member 32. If the load bearing member 32 comprises a tape cable, brake shoes 60 are preferably generally flat, and a guide member 54 preferably has a cylindrical shape with a constant outer size to create a plane of contact with the flat outer surface of the load bearing member 32.

As shown in FIG. 2, the brake element 34 is provided with an associated input element for applying an input mechanical force to overcome the bias generated by the spring 66 to bring the brake element 34 out of its stop position. In this embodiment, the input element comprises a foot pedal 70 and a cable 72 fastened to a lever 62 by means of a clip 74. In this embodiment, one edge 76 of the foot pedal 70 can rest on a stationary surface, for example, on top of an elevator car or on its floor. The cable 72 holds the opposite edge 78 of the foot pedal 70 outside the support surface. This allows a person to place the foot on the foot pedal 70 and apply pressure to it, which will force the edge 78 to move in the direction of the supporting surface (for example, down towards the top of the elevator car). When sufficient pressure is applied to the foot pedal 70, the displacement due to the spring 66 will be overcome, which will bring the brake element 34 out of its stop position. When applied to the foot pedal of the appropriate pressure, the load-bearing element gets the opportunity when installing traction ropes free movement relative to the base 40.

If a person intentionally or accidentally relieves pressure from the foot pedal 70, the brake element 34 automatically moves to a stop position and prevents the movement of the load bearing element 32 relative to the base 40. This design ensures that the person performing the installation of the traction ropes retains appropriate control over load-bearing element 32 to prevent, for example, slipping it into the elevator shaft.

An exemplary speed control member 36 includes a cover 80, optionally coming into contact with the load bearing member 32. In one embodiment, the cover 80 is made of a relatively rigid plastic material to avoid unwanted wear of the outer surface of the load bearing member 32 during installation . In one embodiment, ultra-high molecular weight polyethylene is used for this purpose. In the presented embodiment, the pad 80 is mounted on a support element 82, which is mounted with the possibility of pivoting movement relative to the base 40.

The presented embodiment includes an input element that can be manipulated to change the position of the speed control element 36, which makes it possible to selectively set the speed at which the load-bearing element 32 moves relative to the base 40. The presented embodiment includes a handle 84, which can be manually moved to adjust the choice of the speed of the load-bearing element 32. As can be understood from the drawing, when moving the handle 84 mainly clockwise (in accordance with The images) plate 80 comes into contact with the load-bearing element 32, forcing it to deviate relative to, for example, the guide member 54. Increasing the degree of deflection corresponds to a reduction of speed of movement, in particular because of the increased friction between the load bearing member 32 and the plate 80.

In the illustrated embodiment, the support member 82 comprises a lever holder 86 on one side and a second lever holder 88 on the other side. In the illustrated embodiment, the lever 84 may optionally be mounted on one of the holders 86 or 88 for a right-handed or left-handed operator. One of the design features presented in figure 2 and 3, is that it can be easily converted to another design for other installation conditions.

As shown in FIG. 4, the base 40 may be secured on top of the structural member 44 rather than below it, as in FIG. 3. In addition, the location of the spring 66 relative to the lever 62 can be changed to correspond to such a change in the location of the base 40. In the embodiment of FIG. 3, the spring 66 acts on the nut 68 at one end and on the lever 64 at the other. The spring 66 tends to expand, forcing the lever 64 to move upward (in accordance with the image) to put the brake element 34 in the stop position. In the embodiment of FIG. 4, the spring 66 is mounted so that it acts on the base 40 with one end thereof and on the lever 62 with the other. In this embodiment, the nut 68 abuts against the base 40 to secure the spring 66 in the position necessary to force the brake element 34 to move to the stop position.

The considered embodiments provide improved control over the load-bearing element when mounting the traction ropes of the elevator or over another vertically passing element in the process of performing the corresponding operation. The foregoing description is given as an example rather than limiting the scope of the invention.

A person skilled in the art will understand various changes and modifications of the disclosed embodiments, which are not necessarily beyond the essence of this invention. The scope of legal protection for this invention can only be determined by considering the following claims.

Claims (12)

1. Device (22) for manually adjusting the vertical movement of an extended element (32) of an elevator system, comprising a base (40) configured to be mounted in a predetermined position, an element (36) for controlling the speed of the extended element (32) relative to the base (40) mounted movable relative to the base (40) and configured to selectively contact the element (36) with the extended element (32), the brake element (34) installed in the stop position of the extended element (32) relative to base (40) in the absence of bias operator, the first manual input element (70), installed with the possibility of manual movement to adjust the position of the brake element (34), and the second input element, characterized in that the first input element contains a foot pedal, and the second the input element is mounted with the possibility of manual movement to change the position of the element (36) for controlling the displacement of the brake element and contains a handle. 2. The device (22) according to claim 1, containing a lever (62) associated with the brake element (34) and mounted with the possibility of its displacement in the above stopping position, while the first manual input element (70) is connected with the lever (62) and installed with the possibility of shifting the lever (62) optionally from the specified stop position. 3. The device according to claim 1, containing a spring (66) for displacing the brake element (34) in the specified stop position. 4. The device according to claim 1, containing a guide element (54) mounted on the base (40) with the possibility of directing the extended element (32) when it moves relative to the base (40), while the extended element (32) is locked between the brake element ( 34) and the guide element (54) when the brake element (34) is in the above stopping position. 5. The device according to claim 4, in which the guide element (54) is made of plastic, and the brake element (34) is made of friction material. 6. The device according to claim 5, in which the guide element (54) contains at least one roller. 7. The device according to claim 4, in which at least one element from the group including guide (54) and brake (34) elements has a profile corresponding to the external profile of the extended element (32). 8. The device according to claim 1, containing the first holder (86) of the handle on one side of the element (36) and the second holder (88) of the handle on the other side of the element (36), while the handle (84) is optionally mounted on the first holder (86), or on the second holder (88). 9. The device according to claim 1, containing a mounting clip (42) for fixing the base (40) on a given surface. 10. The device according to claim 9, in which the mounting clip (42) and the base (40) are jointly mounted with the possibility of fixing the base (40) in a fixed position relative to the structural element (44) on the cabin of the elevator system (24). 11. The device according to claim 1, in which the element (36) contains a plastic block for contact with an extended element (32). 12. The device according to claim 1, in which the extended element (32) contains a loaded supporting element of the elevator system.

Images