Method of introducing a mobile transport device and an installation frame into a shaft

Abstract

The present invention relates to a method for introducing a mobile transport device and an installation frame into a shaft, particularly an elevator shaft. A mobile transport device (10) for transporting an installation frame (11) and introducing the installation frame (11) into a shaft (14), particularly an elevator shaft, has a base frame (16) and a bearing frame (34) on which the installation frame (11) can be supported from above. The transport device (10) additionally has a fixing device (48) placed on the base frame (16) to fix the base frame (34) to the shaft opening (50) of the shaft wall (52) of the shaft (14) and to prevent the transport device (10) from tilting. The bearing frame (34) is supported by the base frame (16) and positioned so as to be movable in a horizontal direction relative to the base frame (16), so that when the base frame (16) is positioned outside the shaft (14), the bearing frame (34) and the installation frame (11) accordingly can be moved from outside the shaft (14) into the shaft (14) through the shaft opening (50).

Description

Technology Field

[0001] The present invention relates to a mobile transport device for transporting an installation frame having the features of claim 1 and introducing the installation frame into a shaft, particularly an elevator shaft, and a method for introducing an installation frame having the features of claim 15 into a shaft, particularly an elevator shaft. Background Technology

[0002] JP 2016 160091 A describes a mobile transport device for transporting an installation frame and introducing the installation frame into an elevator shaft. The transport device includes a base frame and a fixing device disposed on the base frame to fix the base frame to the shaft opening and prevent the transport device from tilting.

[0003] WO 2017 / 016783 A1 describes an installation device having a mechatronic installation component placed on an installation frame. The installation device is used to perform an automated installation step, for example, the step of drilling a hole in the shaft wall of an elevator shaft as part of the installation of an elevator in an elevator shaft. In order to perform installation steps at different heights within the elevator shaft, the installation device is suspended from a flexible suspension means and can be displaced within the elevator shaft by a displacement component placed above the elevator shaft by the suspension means. Before the installation device can perform installation steps within the elevator shaft, the installation device must be transported to the elevator shaft and introduced into the elevator shaft through a shaft opening. WO 2017 / 016783 A1 does not describe how the installation device is transported and introduced into the elevator shaft.

[0004] Transporting and introducing the installation device into the shaft is considerably complex, as is the installation device itself, due to its required dimensions and weight. Adding to the complexity is that the elevator shaft at the shaft opening where the installation device is to be introduced typically lacks a solid floor or temporary installation platform on which the device can be placed and which the installer can step.

[0005] Accordingly, the object of the present invention is to propose a mobile transport device and a method for introducing an installation frame, in particular into a shaft, particularly an elevator shaft, wherein the transport device can easily, in particular safely, introduce the installation frame into the shaft. According to the present invention, this object is achieved by a mobile transport device having the features of claim 1 and a method having the features of claim 15.

[0006] A mobile transport device according to the present invention for transporting an installation frame and introducing the installation frame into a shaft, particularly an elevator shaft, comprises a base frame and a bearing frame on which the installation frame can be supported from above. The transport device also includes a fixing device disposed on the base frame to fix the base frame to a shaft opening in the shaft wall of the shaft and prevent the transport device from tilting. The bearing frame is supported by the base frame and disposed to be movable in a horizontal direction relative to the base frame, so that when the base frame is disposed on the outside of the shaft, the bearing frame and thereby the installation frame can be moved from the outside of the shaft into the shaft through the shaft opening.

[0007] Accordingly, a mobile transport device equipped with an installation frame is sent to or displaced into a shaft opening and secured to the shaft opening from the outside of the shaft by a fixing device. The bearing frame can then be moved horizontally together with the installation frame relative to the base frame and thus pushed into the shaft through the shaft opening. Since the bearing frame and the installation frame are also supported by the base frame during horizontal movement, the installation frame does not require additional holding or support. In particular, the installation frame may be placed on the bearing frame so that there is no need to rotate or tilt the installation frame before or during introduction into the shaft. Since only friction between the base frame and the installation frame needs to be overcome, the horizontal movement of the bearing frame and the installation frame requires relatively little force. Accordingly, the installation frame can be introduced into the shaft very easily. Furthermore, when introducing the installation frame, the installer does not need to enter the elevator shaft or directly enter the shaft opening. Therefore, introducing the installation frame is particularly safe.

[0008] The embodiments described below relate equally to mobile transport devices and methods. That is, for example, with reference to a mobile transport device, the features mentioned below may also be implemented as method steps, and vice versa.

[0009] The transport device is designed as a mobile transport device. This should be understood to mean that the transport device as a whole, including the mounting frame mounted on the bearing frame, can move, that is, be displaced. The transport device may, for example, have rollers that can move upward. For example, it is also possible for the transport device to be displaced by a forklift. Furthermore, the transport device may also be suspended from cables and may be lifted or displaced by, for example, a crane.

[0010] The mounting frame can be used to hold a mechatronic mounting component, for example, in the form of an industrial robot. By using a mechatronic mounting component, automatic mounting steps can be performed on the shaft while the mounting frame is in a fixed state. The mechatronic mounting component can be designed, for example, according to the automatic mounting component of WO 2017 / 016780 A1. However, the mounting frame may have an mounting platform, for example, or be designed as a mounting platform, which allows an installer to perform mounting steps within the shaft manually or with the help of tools.

[0011] In this case, a shaft is understood as a long space separated by shaft walls. In particular, shafts typically have a rectangular cross-section, but other cross-sections can also be considered. Specifically, shafts run primarily in the vertical direction. Shafts are typically placed in buildings, but they may also be placed, for example, on bridges, columns, or ships. Shaft walls are typically constructed of concrete reinforced with reinforcing materials. However, they may also be made of metal, for example. Shafts are particularly used as elevator shafts in elevator systems, where the car, which transports people and / or objects during the operation of the elevator system, is displaced in the direction of displacement. Shafts can also be used for other purposes; for example, they may be used as ventilation shafts or to house pipes, electrical cables, etc.

[0012] The shaft has a shaft opening that allows access to the shaft from the side, that is, in the horizontal direction. The shaft opening is therefore positioned on one of the shaft walls of the shaft. When the shaft is designed as an elevator shaft, a shaft door is installed in the shaft opening when an elevator is installed in the shaft, and passengers can enter and exit the elevator car through the shaft door during subsequent operation of the elevator. In particular, a floor is installed in front of the shaft opening, that is, on the outside of the shaft, to indicate which floor the transport unit can stop at. When the shaft is designed as an elevator shaft, the floor is the floor of the corresponding shaft opening and, accordingly, the floor accessible through the shaft door.

[0013] The mounting frame must be able to be displaced in the direction of displacement within the shaft after being introduced into the shaft, and thus be positioned at different locations, particularly at different heights within the shaft. To this end, before or after being introduced into the shaft, the mounting frame is connected to a displacement component, particularly a winch, by a suspension means, for example, in the form of a cable, chain, or belt. The suspension means can be wound up or lowered by the winch, thereby allowing the mounting frame to be displaced within the shaft. Thus, after being introduced into the shaft, the mounting frame can be lifted upward from the bearing frame.

[0014] In particular, the base frame primarily has a rectangular basic formation. The basic structure of the base frame consists of metal profiles, specifically those with a rectangular cross-section. Additional parts can be placed on the basic structure.

[0015] In particular, the bearing frame also has a basic rectangular shape and thus primarily has a rectangular cross-section. In particular, the bearing frame is not as tall as the base frame. Therefore, the bearing frame forms an upwardly oriented support surface into which the mounting frame can be fitted, so that the mounting frame is supported from above on the bearing surface and the bearing frame. The bearing frame is primarily composed of rectangular metal profiles that are welded together, for example. The bearing frame is supported by the base frame so as to be supported from above on the base frame. In particular, it is supported exclusively on the base frame.

[0016] When a fixing device is placed on a base frame, the base frame and the transport device therewith can be fixed to the outside of the shaft at the shaft opening. Fixing to the shaft opening is understood to mean that the fixing device is supported in the part of the shaft forming the shaft opening so as to support horizontal forces, particularly perpendicular to the shaft opening, and torques that may cause tilting of the transport device. The part of the shaft forming the shaft opening specifically means the shaft wall (inside the shaft and outside the shaft), but is also understood to mean the floor or ceiling in front of the shaft opening.

[0017] In order to introduce the mounting frame into the shaft, that is, to introduce it into the shaft from the outside of the shaft, a transport device including the mounting frame is positioned in a suitable location in front of the shaft opening, that is, on the outside of the shaft. Subsequently, the base frame and the transport device thereof are secured to the shaft opening by a fixing device. The bearing frame can then be moved horizontally relative to the base frame in the direction of the shaft, so that the bearing frame and the mounting frame thereof can be moved into the shaft through the shaft opening. For example, the bearing frame can be moved 150 to 200 cm relative to the base frame. The movement cannot be performed only in the horizontal direction and may have a vertical component. Thus, it may proceed obliquely or tilt.

[0018] Before the bearing frame moves relative to the base frame, it is primarily, and specifically entirely, placed on top of the base frame. Forces act within the base frame due to the weight of the bearing frame and the mounting frame attached to it. As the bearing frame moves along the shaft, it protrudes horizontally beyond the base frame, and the effective direction of the resulting force also shifts horizontally along the shaft. Consequently, this means that the resulting force acts on the outside of the base frame, causing an inclination moment on the base frame. This inclination moment is supported by a fixing device, preventing the base frame and the consequent transport device from tilting. Therefore, it is insufficient if the base frame is fixed only for horizontal movement.

[0019] The transport device can also be used to remove the mounting frame from the shaft. To this end, the transport device is positioned and fixed in the shaft opening in the same manner as the mounting frame is introduced into the shaft. The bearing frame is then moved into the shaft through the shaft opening without the fitted mounting frame. A mounting frame having a displacement component can subsequently be fitted into the bearing frame. The bearing frame is then moved out of the shaft in the direction of the base frame and, accordingly, from the inside of the shaft to the outside of the shaft. The mounting frame can be separated from the suspension means on the inside or outside of the shaft.

[0020] In one embodiment of the present invention, the bearing frame is positioned on the base frame via telescopic extension rails, specifically two telescopic extension rails arranged side by side. This allows for the configuration of a particularly simple transport device. Additionally, by using telescopic extension rails, the bearing frame can be easily displaced horizontally relative to the base frame, thereby allowing the installation platform to be easily introduced into the shaft. Since the bearing frame with the installation frame mounted thereon is quite heavy, the telescopic extension rails used are designed as so-called heavy-duty telescopic extension rails.

[0021] The telescopic extension rail consists of at least two guide rails, and their profiles can move relative to each other. A first guide rail, particularly an outer guide rail, is connected to a base frame, and a second guide rail, particularly an inner guide rail, is connected to a bearing frame. The guide rails may be connected, for example, to the base frame or the bearing frame, directly or through an intermediate bracket, particularly by screw connection.

[0022] In one embodiment of the present invention, the base frame and the bearing frame each have a stop designed and arranged to limit the movement of the bearing frame relative to the base frame. They also each have one or more stops, particularly two stops. In this way, it can be reliably prevented that the bearing frame moves too far relative to the base frame and is no longer held by the base frame. This ensures a particularly safe transport device.

[0023] The stop portions of the base frame and the bearing frame come into contact with each other when the maximum horizontal movement of the bearing frame relative to the base frame is reached, thereby preventing further movement. The stop portion may be designed, for example, as a small metal plate that can be welded or screwed to the base frame or the bearing frame.

[0024] In one embodiment of the present invention, the bearing frame can be moved relative to the base frame by a spindle drive. This makes the movement of the bearing frame relative to the base frame very simple, and consequently makes the introduction of the mounting frame into the shaft simpler. The spindle drive can be operated by hand, for example, by a crank. The spindle of the spindle drive may be coupled to a hand drill, or the spindle drive may be operated by a hand drill coupled to the spindle drive. Additionally, a drive for driving the spindle drive, for example, an electric motor, may be permanently installed in the transport device.

[0025] The spindle of the spindle drive is specifically mounted horizontally and immovably on the base frame and connected to a bearing frame at one end, so that when the spindle rotates, the bearing frame moves horizontally relative to the spindle. When the spindle rotates, the bearing frame moves relative to the base frame.

[0026] In one embodiment of the present invention, the bearing frame is positioned at an angle relative to the horizontal. Such an angle is present when the transport frame is erected on a floor that is at least nearly horizontal. In particular, the bearing frame is positioned at an angle such that it has a gradient in the direction of the shaft opening and thus in the direction of the shaft when the transport device is positioned in the shaft opening of the shaft. This means that when the installation frame is introduced into the shaft, the bearing frame and the installation frame can automatically move into the shaft through the shaft opening relative to the base frame by their own weight without applying any further force. This allows the installation frame to be introduced into the shaft with particular ease.

[0027] The inclination may be, for example, 5 to 15°, particularly approximately 10°. In particular, a cable winch is positioned on the base frame, through which the bearing frame can be withdrawn from the shaft in the direction of the base frame. To this end, the cable of the cable winch is connected to the bearing frame. By means of the cable winch and the cable, the automatic movement of the bearing frame relative to the base frame when introducing the installation frame into the shaft can be controlled; that is, the automatic movement can be braked or prevented. In addition to the cable winch, a fixing mechanism for the bearing frame relative to the base frame may be provided, and this fixing mechanism prevents the bearing frame from moving unintentionally relative to the base frame. The fixing mechanism may have, for example, a bolt, which is inserted into the corresponding recess of the bearing frame and the base frame.

[0028] When the transport device has a spindle drive as described above, the bearing frame is positioned particularly horizontally, that is, not inclined. However, a combination of the spindle drive and the inclined positioning of the bearing frame can also be considered.

[0029] In one embodiment of the present invention, the fixing device has a primary fixing element for support on the outside of a shaft wall having a shaft opening. Thus, particularly secure fixing is possible, and tilting of the transport device can be more reliably prevented when the bearing frame is moved relative to the base frame.

[0030] In this case, the outer side of the shaft wall should be understood as the side of the shaft wall facing outward when viewed from the shaft. Therefore, the inner side of the shaft wall should be understood here as the side of the shaft wall facing inward when viewed from the shaft.

[0031] The fixing device, in particular, has two primary fixing elements each positioned laterally on the base frame with respect to the shaft opening. When fixed, the primary fixing elements or the primary fixing elements may extend upward, particularly in the vertical direction, protrude beyond the door opening, and be supported on the door opening on the outer side of the shaft wall. When moving the bearing frame into the shaft, there is a risk that the base frame and the accompanying transport device may tilt in the direction of the shaft. This can be reliably prevented by a support on the outer side of the shaft wall having the shaft opening above the shaft opening.

[0032] The primary fixing elements, in particular, have a spindle that extends horizontally, mainly in the direction of the shaft wall when fixed. The spindle is rotatably and movably mounted within the primary fixing element and can be displaced in the direction of the shaft wall or away from the shaft wall by a corresponding rotation, for example, by a hand crank. In particular, the spindle is displaced in the direction of the shaft wall so that the bearing frame is already positioned on the outside of the shaft wall before the bearing frame moves in the direction of the shaft.

[0033] In one embodiment of the present invention, the primary fixing element has a fixing arm that can be positioned at a fixed position and a displacement position on the transport device. The fixing arm allows the base frame to be fixed to the shaft opening at the fixed position and allows the transport device to be displaced at the displacement position. At the displacement position, the fixing arm can be displaced together with the transport device and does not need to be transported separately. This enables particularly effective use of the transport device.

[0034] In particular, the length of the fixed arm can be changed to adapt to the height of the corresponding shaft, particularly the shaft opening. Specifically, it is designed with several parts, specifically two parts, which are designed to be movable toward each other, separated apart from each other, and fixed to a desired position relative to each other, for example, using bolts. Specifically, the transport device is designed so that all parts of the fixed arm are arranged in a displacement position.

[0035] In one embodiment of the present invention, at least a portion of the fixed arm is positioned on a base frame so as to pivot about a pivot axis, and by pivoting about the pivot axis, it can move from a fixed position to a displaced position and vice versa. This not only makes the operation of the transport device particularly simple, but also prevents the portion of the fixed arm that is pivotably and consequently firmly connected to the base frame from being damaged. In this case, the fixed arm is designed in particular in two parts.

[0036] In one embodiment of the present invention, the fixing device has a secondary fixing element for support on the inner side of a shaft wall having a shaft opening. Accordingly, particularly secure fixing is possible, and the tilting of the transport device when the bearing frame is moved relative to the base frame can be more reliably prevented.

[0037] In particular, the fixing device has two secondary fixing elements. When fixed, the secondary fixing elements or secondary fixing elements may extend downward, particularly in the vertical direction, protrude beyond the door opening, and be supported below the door opening on the inner side of the shaft wall. When moving the bearing frame into the shaft, there is a risk that the base frame and the consequent transport device may tilt in the direction of the shaft. This can be reliably prevented by a support located on the inner side of the shaft wall having the shaft opening below the shaft opening. Additionally, the secondary fixing elements or secondary fixing elements prevent the base frame and the consequent transport device from moving away from the shaft opening in the horizontal direction.

[0038] In addition, the fixture may be designed in other ways. For example, one can consider a fixture that self-caulks between the floor and the ceiling in front of the shaft opening.

[0039] In one embodiment of the present invention, rollers are arranged on a base frame, and the base frame is supported by these rollers on the floor below the base frame and can roll on the floor. Thus, the transport device can be displaced particularly easily.

[0040] In particular, the transport device has four rollers. In particular, the rollers are installed on a base frame so as to be able to rotate around a vertical axis and can be locked in different directions.

[0041] In one embodiment of the present invention, in addition to the aforementioned rollers, a support device is disposed on the base frame, and the base frame can be supported on the floor in front of the shaft opening by these rollers. In this way, the load on the rollers can be relieved when introducing the mounting frame into the shaft. The support device, in particular, has two vertically aligned spindles rotatably and movably mounted on the base frame. As they rotate, they can be screwed down from the base frame so as to be supported on the floor surface in front of the shaft opening and lift the base frame, so that at least two wheels positioned in the direction of the shaft opening are no longer loaded or lifted from the ground.

[0042] In one embodiment of the present invention, the base frame has a coupling device designed and arranged to enable coupling with a drive device that displaces the transport device. Thus, the transport device can be displaced particularly easily. By this, the transport device can be used particularly easily. The coupling device may be designed, for example, as a metal profile to which the drive device can be coupled. The drive device may be designed, for example, as a drive device according to EP 1710146 A2.

[0043] The transport device may have driven rollers or drive machines in the form of electric motors instead of coupling devices for the drive device.

[0044] In one embodiment of the present invention, the bearing frame has a centering device, thereby guiding the mounting frame to a predetermined fitting position when fitted into the bearing frame. On the one hand, this allows the mounting frame to be firmly fitted into the position provided with respect to the bearing frame, and on the other hand, the fitting becomes easier.

[0045] In particular, the bearing frame has a plurality of centering devices, specifically four centering devices. The centering device has an insert bevel that interacts with a corresponding bevel, particularly at an extension of the mounting frame. When the mounting frame is fitted into the bearing frame, the bevels slide against each other so that the mounting frame moves to a designated fitting position.

[0046] In one embodiment of the present invention, the centering device has a fixing device, and by means of this fixing device, the installation frame fitted into the bearing frame can be fixed on the receiving frame. By doing so, it is possible to prevent the installation frame from being unintentionally separated from the bearing frame and, consequently, from the transport device.

[0047] The fixing device may have, for example, a recess in the form of a through hole, which is aligned, for example, with a corresponding recess in the form of a through hole in the installation frame at a designated fitting position of the installation frame. To fix the installation frame to the bearing frame, a fixing pin may be inserted, for example, through two recesses, thereby establishing a positive connection between the installation frame and the bearing frame. Additionally, it is possible for the fixing device to be placed at a different location rather than being placed on the centering device.

[0048] In particular, the transport device has at least one eyelet, by which the transport device can be suspended. Thus, the transport device can be displaced particularly easily, for example, by a crane.

[0049] In particular, the transport device has one or more eyelets, specifically four eyelets. The eyelets or eyelets are arranged particularly on a bearing frame and are particularly welded.

[0050] The aforementioned objective is also achieved by a method of introducing an installation frame into a shaft, particularly an elevator shaft. The installation frame is fitted into a bearing frame of a mobile transport device and supported from above by the bearing frame. The bearing frame is supported by a base frame of the transport device. The method according to the present invention comprises at least the following steps:

[0051] - A step of preventing the transport device from tilting by fixing the base frame and the transport device accordingly to the shaft opening outside the shaft by means of a fixing device placed on the base frame, and

[0052] - A step of introducing an installation frame into the shaft from the outside of the shaft through the shaft opening by moving a bearing frame, which is positioned to be movable in a horizontal direction relative to the base frame, into the shaft from the outside of the shaft through the shaft opening.

[0053] This method has the advantages mentioned in relation to mobile transport devices.

[0054] In particular, the steps proceed in a fixed order, but deviations from this order can also be considered.

[0055] The first fitting of the installation frame, particularly on the bearing frame of a mobile transport device, can occur outside a building having a shaft. After the first fitting is made, the installation frame is fitted from the rear onto the bearing frame of the transport device and displaced to another shaft, and is introduced to another shaft, particularly after the installation work on one shaft is completed.

[0056] After insertion, the included mounting frame is displaced into the shaft opening of the shaft. This displacement may occur inside a building or between buildings. Various auxiliary devices, such as drive units, forklifts, cranes, or trucks, may be used for displacement. The transport unit may also be displaced by being moved manually by one or more installers.

[0057] The mounting frame is connected to a suspension means, particularly one proceeding in the shaft, either before or after introduction into the shaft. Thus, after the mounting frame is introduced into the shaft, it can be lifted upward from the bearing frame by the suspension means, for example by a displacement part positioned at the top of the shaft in the form of a winch, and can be displaced within the shaft.

[0058] After the installation frame is attached and lifted, the bearing frame, in particular, is removed from the shaft again. To this end, it is moved horizontally relative to the base frame from the inside of the shaft to the outside of the shaft, that is, in the direction of the base frame. Therefore, the movement performed when introducing the installation frame into the shaft is performed in the opposite direction.

[0059] Subsequently, the fixation to the shaft opening is separated, and the transport device can be displaced away from the shaft opening. In this way, the transport device is not hindered by subsequent installation work on the shaft.

[0060] After the installation work on the shaft is completed, the installation frame is removed from the shaft with the help of a mobile transport device as described above.

[0061] It should be noted that some of the possible features and advantages of the present invention are described herein with reference to different embodiments of the transport device and method according to the present invention. Those skilled in the art will know that features may be combined, adapted, transferred, or exchanged to arrive at other embodiments of the present invention.

[0062] Further advantages, features, and details of the present invention are apparent from the following description of embodiments and drawings in which identical or functionally identical elements are indicated by the same reference numerals. The drawings are merely schematic and not to scale. Brief explanation of the drawing

[0063] Figure 1 shows a mobile transport device positioned in front of the shaft opening of a shaft into which an installation frame is fitted. Figure 2 shows the transport device of Figure 1 fixed in the shaft opening and the installation frame pushed into the shaft. FIG. 3 shows a mobile transport device positioned in front of the shaft opening of a shaft in another embodiment in which an installation frame is fitted. Specific details for implementing the invention

[0064] According to FIG. 1, a mobile transport device (10) for transporting the installation frame (11) of the installation device (12) and introducing the installation frame (11) and the installation device (12) into a shaft in the form of an elevator shaft (14) has a base frame (16). The installation device (12) also has a mechatronic installation part in the form of an industrial robot (13) that is suspended downward from the installation frame (11).

[0065] The base frame (16) has a lower frame (18) and an upper frame (20). The two frames (18, 20) have the same rectangular cross-section and form a rectangular metal profile. The two frames (18, 20) are also made of metal profile and are connected to each other through four vertical bars (24) of equal length, each bar being placed in the corner area of ​​the frames (18, 20). The two frames (18, 20) of the base frame (16) are thus arranged parallel to each other. The base frame (16) thus has a basic rectangular shape. Thus, the two frames (18, 20) and the bars (24) form the basic structure of the base frame (16).

[0066] Four rollers (26) are arranged on the lower side of the lower frame (18) of the base frame (16), and through these rollers, the base frame (16) and the transport device (10) therefrom are supported on the floor (28) below the base frame (16). The rollers (26) are arranged to pivot about a vertical axis on the lower frame (18) and can be locked in different directions. Thus, the transport device (10) can be moved on the floor (28) while the rollers (26) roll on the floor (28). On a total of three sides of the lower frame (18) of the base frame (16), coupling devices (30) in the form of metal profiles are arranged, which are open at the bottom and into which a driven transport device (32) can be coupled and thereby apply driving force to the transport device (10). The drive device (32) can be designed, for example, as a drive device according to EP 1710146 A2.

[0067] The upper frame (20) of the base frame (16) supports a bearing frame (34) which is supported from above by the mounting frame (11) of the mounting device (12). Thus, the bearing frame (34) is arranged horizontally and is not inclined relative to the horizontal. It also has a rectangular cross-section and is also composed of a rectangular metal profile. The cross-section of the bearing frame (34) is identical to the cross-sections of the two frames (18, 20) of the base frame (16). An eyelet (36) is placed on the bearing frame (34) in each of the four corner areas, and through this eyelet, the transport device (10) can be suspended and displaced on a suitable cable (not shown). The bearing frame (34) is connected to the upper frame (20) of the base frame (16) via two telescopic extension rails (17 in FIG. 2) arranged parallel to each other and not visible in FIG. 1. Accordingly, the bearing frame (34) and the installation device (12) can be moved horizontally in the direction of the elevator shaft (14) relative to the base frame (16).

[0068] The movement of the bearing frame (34) relative to the base frame (16) is caused by a spindle drive (38). The spindle drive (38) has a spindle (40) that is rotatably mounted on an L-shaped additional part (42) on the upper frame (20) of the base frame (16) and cannot be mounted to move horizontally. The spindle (40) is also connected to the bearing frame (34) in such a way that when the spindle (40) rotates, the bearing frame (34) moves horizontally relative to the spindle (40). When the spindle (40) rotates, the bearing frame (34) moves relative to the base frame (16). The spindle (40) can be turned and rotated by a hand crank (not shown). It is also possible to have a hand drill (not shown) coupled to the spindle (40) and turn or rotate it together with it.

[0069] A first stop (44) is arranged on the upper frame (20) of the base frame (16) at its end oriented in the direction of the elevator shaft (14). This first stop (44), together with a second stop (46) arranged on the end of the bearing frame (34) facing away from the elevator shaft, limits the horizontal movement of the bearing frame (34) relative to the base frame (16). The two stop (44, 46) come into contact with each other when maximum movement is reached, thereby preventing further displacement of the bearing frame (34) relative to the base frame (16) in the direction of the elevator shaft (14). This relationship is illustrated in FIG. 2.

[0070] A fixing device (48) is also provided on the base frame (16) to fix the base frame (16) to the shaft opening (50) of the shaft wall (52) of the elevator shaft (14) and to prevent tilting of the transport device (10). FIG. 1 illustrates the fixing device (48) in its transport position, which allows for displacement of the transport device (10). The fixing device (48) has two primary fixing elements (54) arranged laterally on the base frame (16), and only one primary fixing element (54) is shown in FIG. 1 and FIG. 2. The primary fixing element (54) has a two-part fixing arm (56 in FIG. 2) composed of a lower arm portion (60) and an upper arm portion (62) that are pivotable around a pivot axis (58) fixedly arranged on the upper frame (20) of the base frame (16). The pivotable arm portion (60) can be secured to the upper frame (20) of the base frame (16) by a bolt (61). The upper arm portion (62) can be inserted into the lower arm portion (60) and secured in various positions by a bolt (not shown). Thus, the length of the fixed arm (56) is adjustable and can be adapted to the height of the shaft opening (50). In the transport position, the upper arm portion (62) is fastened to the upper frame (20) of the base frame (16) by a bracket (not shown).

[0071] The fixing device (48) also has a secondary fixing device in the form of two pins (64) that can move in a vertical direction and are arranged at the shaft-side end of the lower frame (18) of the base frame (16). Only one pin (64) is visible in FIGS. 1 and FIGS. 2. The pins (64) can be fixed at different heights by bolts (not shown). In FIGS. 1, i.e., in the transport position of the fixing device (48), the pins (64) are arranged in such a way that they terminate on the floor (28) and do not interfere with the displacement of the transport device (10).

[0072] Two support devices in the form of two vertically aligned spindles (66) are arranged on the lower frame (18) of the base frame (16) in the area of ​​their shaft-side ends, and only one spindle (66) is visible in FIGS. 1 and FIGS. 2. The spindle (66) may protrude further or less from the lower frame (18) by a corresponding rotation. In FIGS. 1, the spindles (66) are arranged in such a way that they terminate on the floor (28) and do not interfere with the displacement of the transport device (10).

[0073] In order to introduce the installation device (12) having an installation frame (11) into the elevator shaft (14), the installation device (12) must be fitted onto the bearing frame (34) of the transport device (10). The first fitting occurs outside the building where the elevator shaft (14) is located. The installation device (12) is fitted onto the bearing frame (34) specifically by a crane. For this purpose, the installation device (12) may be suspended from an eyelet (68). The eyelet (68) is also used to suspend the installation device (12) from a suspension means (not shown) of a winch-type displacement part (not shown) in the elevator shaft (14).

[0074] In order to move the installation device (12) and the installation frame (11) accordingly to a predetermined fitting position, the bearing frame (34) has four centering devices (70), only two of which are visible in FIGS. 1 and 2. The centering device (70) has a conically arranged insert bevel that interacts with a corresponding bevel at a downward extension (72) of the installation frame (11). When the installation frame (11) is fitted into the bearing frame (34), the corresponding bevels slide against each other so that the installation frame (11) moves to the designated fitting position shown in FIGS. 1 and 2.

[0075] Each of the centering devices (70) has a fixing device (74), thereby allowing the installation frame (11) fitted onto the bearing frame (34) to be fixed onto the receiving frame (34). The fixing device (74) has a through hole (not shown) within the centering device, which aligns with a corresponding through hole (not shown) within an extension (72) of the installation frame (11) at a designated fitting position of the installation frame (11). To fix the installation frame (11) to the bearing frame (34), a fixing pin (76) can be inserted through the two through holes, thereby establishing a positive connection between the installation frame (11) and the bearing frame (34).

[0076] The described fitting of the installation frame (11) on the bearing frame (34) may also occur after the installation work within the elevator shaft is completed. This is discussed in more detail below.

[0077] After the installation frame (11) is fitted into the bearing frame (34), the transport device (10) including the installation frame (11) is displaced into the shaft opening (50) of the elevator shaft (14). The transport device (10) is positioned in front of the shaft opening (50) so that the vertical pins (64) of the secondary fixing device are arranged in a straight line within the elevator shaft (14) and can move from floor (28) downward. This position is illustrated in FIGS. 1 and 2.

[0078] In order to introduce the installation device (12) and the corresponding installation frame (11) into the elevator shaft (14), the fixing device (48) is moved to the fixed position shown in FIG. 2, and thus the base frame (16) and the transport device (10) are fixed to the shaft opening (50). For this purpose, the upper arm portion (62) is removed from the bracket on the upper frame (20) of the base frame (16) and inserted into its associated lower arm portion (60). The length of the fixing arms (56) is adjusted so that they protrude slightly beyond the shaft opening (50). The fixing arms (56) are subsequently pivoted upward around their pivot axis (58) to their fixed position, and in this position are fixed to the lower frame (18) of the base frame (16) by a bolt (63).

[0079] The fixed arms (56), particularly the upper arm portions (62), each have a spindle (78) at their upper end, which extends horizontally in the direction of the shaft wall (52) when the fixed arms (56) are in a fixed position. The spindle (78) is rotatably and movably mounted on the fixed arms (56) so that the spindle can be displaced in the direction of the shaft wall (52) or away from the shaft wall (52) by a corresponding rotation by a hand crank (80). To secure the base frame (16) and the transport device (10) therefrom to the shaft opening (50), the spindle (78) is displaced away in the direction of the shaft wall (52) so as to be supported on the outer side (82) of the shaft wall (52) by leaning against the outer side (82) of the shaft wall (52). As described above, since the fixed arms (56) protrude upward beyond the shaft opening (50), the spindle (78) and thus the fixed arms (56) are supported on the shaft opening (50) on the outer side (82) of the shaft wall (52) having the shaft opening (59). This state is illustrated in FIG. 2.

[0080] To move the fixing device (48) to its fixed position, a secondary fixing device in the form of two pins (64) is also moved to its fixed position. For this purpose, the two pins (64) are pressed downward far enough so that they end below the floor (28). Thus, in their lower region, they are supported against the inner side (84) of the shaft wall (52) having the shaft opening (50), and thus can be supported on the inner side (84). Since the pins (64) end below the floor (28), the pins (64) are supported below the shaft opening (50) on the inner side (84) of the shaft wall (52) having the shaft opening (50). This state is illustrated in FIG. 2.

[0081] In order to reduce the load on the rollers (26), particularly the two shaft-side rollers (26), when the installation device (12) is introduced into the elevator shaft (14), the spindle (66) of the support device is rotated away from the lower frame (18) of the base frame (16) so that it is supported on the floor (28) and the two shaft-side rollers (26) are no longer loaded. This state is illustrated in FIG. 2.

[0082] After fixing the base frame (14) and the transport device (10) to the shaft opening (50), the fixing pin (76) of the fixing device (74) can be removed (see FIG. 1) to lift the installation frame (11) and the installation device (12) accordingly from the bearing frame (34).

[0083] Subsequently, by turning or rotating the spindle (40) of the spindle drive (38), the mounting device (12) having the bearing frame (34) and thus the mounting frame (11) is moved horizontally relative to the base frame (16) in the direction of the elevator shaft (14). Two telescopic extension rails (17) connecting the bearing frame (34) to the upper frame (20) of the base frame (16) are pulled apart. Thus, the bearing frame (34), together with the mounting device (12) and the mounting frame (11), is moved from the outside of the elevator shaft (14) into the elevator shaft (14) through the shaft opening (50). The displacement continues until the first stop (44) on the upper frame (20) of the base frame (16) comes into contact with the second stop (46) on the bearing frame (34), and thus the movement ends. This state is illustrated in Fig. 2.

[0084] After movement into the elevator shaft (14) is finished, the installation frame (11) and the installation device (12) associated therewith are connected to a suspension means (not shown) of a winch-type displacement part (not shown) in the elevator shaft (14) via an eyelet (68). The installation device (12) having the installation frame (11) is then lifted from the bearing frame (34) by the winch and suspension means.

[0085] The bearing frame (34) is subsequently moved back in the direction of the base frame (14), and the fixation (48) on the shaft opening (50) is separated. Accordingly, the transport device (10) returns to the state shown in FIG. 1. Subsequently, the transport device (10) can be displaced away from the shaft opening (50).

[0086] The installation device (12) can subsequently perform the necessary installation steps on the elevator shaft (14). After the installation steps are completed, the installation device (12) is removed again from the elevator shaft (14) by the transport device (10). For this purpose, it returns to the position shown in FIG. 2, and the installation device (12) is re-mounted onto the bearing frame (34) by means of a winch and suspension means. Subsequently, the steps described in relation to the introduction of the installation device (12) are performed in reverse order.

[0087] FIG. 3 illustrates an alternative embodiment of a transport device (110) having an installation frame (111) fitted in front of the shaft opening (150) of the shaft (114) at the same position as the transport device (10) of FIG. 1 is in front of the shaft opening (50). Since the transport device (110) of FIG. 3 is only slightly different from the transport device (10) of FIG. 1, only the differences between the two transport devices are described here.

[0088] The vertical extension bars of the base frame (116) of the transport device (110) connecting the lower frame (118) and the upper frame (120) are not identical and have different lengths. The bars (124a) facing the shaft opening (150) are formed shorter than the bars (124b) facing the opposite side of the shaft opening (150), so that the upper frame (120) of the base frame (116) is inclined toward the shaft opening (150). Accordingly, the bearing frame (134) supported by the upper frame (120) of the base frame (116) is also inclined toward the shaft opening (150).

[0089] A cable winch (140) is positioned on the upper frame (120) of the base frame (116) and can be operated by a hand crank (142). The invisible cable of the cable winch (140) is connected to the bearing frame (134). The cable winch (142) can be used to prevent or control the automatic movement of the bearing frame (134) relative to the base frame (116) caused by the inclination of the bearing frame (134). After the mounting device (112) is introduced into the shaft (114) and suspended on the cable of the displacement part, the bearing frame (134) can be pulled back from the shaft (114) using the cable winch (142) and thus moved back in the direction of the base frame (116).

[0090] Finally, it should be noted that terms such as "having," "including," etc., do not exclude any other elements or steps, and that singular expressions do not exclude plural expressions. Additionally, it should be noted that features or steps described with reference to one of the embodiments above may also be used in combination with other features or steps of the other embodiments described above. Drawing symbols in the claims should not be considered restrictive.

Claims

Claim 1 A mobile transport device for transporting an installation frame and introducing the installation frame into a shaft, comprising: a base frame (16, 116); a fixing device (48) disposed on the base frame (16, 116) to fix the base frame (16, 116) to a shaft opening (50, 150) of a shaft wall (52) of the shaft (14, 114) and to prevent the transport device (10, 110) from tilting; and a bearing frame (34, 134) in which the installation frame (11, 111) can be supported from above, wherein the bearing frame (34, 134) is supported by the base frame (16, 116) and disposed to be movable in a horizontal direction relative to the base frame (16, 116), so that when the base frame (16, 116) is disposed outside the shaft (14, 114), A mobile transport device characterized in that the bearing frame (34, 134) can be moved from outside the shaft (14, 114) into the shaft (14, 114) through the shaft opening (50, 150). Claim 2 A mobile transport device according to claim 1, wherein the bearing frame (34, 134) is positioned on the base frame (16) via a telescopic extension rail (17). Claim 3 A mobile transport device according to claim 1 or 2, wherein each of the base frame (16, 116) and the bearing frame (34, 134) has a stop portion (44, 46) designed and arranged to restrict the movement of the bearing frame (34, 134) relative to the base frame (16, 116). Claim 4 A mobile transport device according to claim 1 or 2, wherein the bearing frame (34) is movable relative to the base frame (16) by a spindle drive (38). Claim 5 A mobile transport device according to claim 1 or 2, wherein the bearing frame (134) is positioned at an angle relative to the horizontal. Claim 6 A mobile transport device according to claim 1 or 2, wherein the fixing device (48) has a primary fixing element (54) for support on the outside (82) of the shaft wall (52) having the shaft opening (50, 150). Claim 7 In claim 6, the primary fixing element (54) has a fixing arm (56) that can be positioned at a fixed position and a displacement position on the transport device (10, 110), and the fixing arm can fix the base frame (16, 116) to the shaft opening (50, 150) at the fixed position and displace the transport device (10, 110) at the displacement position, a mobile transport device. Claim 8 In claim 7, at least one part (60) of the fixed arm (56) is positioned on the base frame (16, 116) and pivots around a pivot axis (58), and by pivoting around the pivot axis (58), the mobile transport device can be moved from the fixed position to the displacement position and vice versa. Claim 9 A mobile transport device according to claim 1 or 2, wherein the fixing device (48) has a secondary fixing element (64) for support on the inner side (84) of the shaft wall (52) having the shaft opening (50, 150). Claim 10 A mobile transport device according to claim 1 or 2, wherein rollers (26) are disposed on the base frame (16, 116), and the base frame (16, 116) is supported by the rollers on a floor (28) below the base frame (16, 116) and can roll on the floor (28). Claim 11 A mobile transport device according to claim 10, wherein a support device (66) is disposed on the base frame (16, 116), and the base frame (16, 116) can be supported on the floor (28) in front of the shaft opening (50, 150) by the support device. Claim 12 A mobile transport device according to claim 1 or 2, wherein the base frame (16, 116) has a coupling device (30) designed and arranged in such a way that a coupling to a drive device (32) for displacing the transport device (10, 110) can be created. Claim 13 A mobile transport device according to claim 1 or 2, wherein the bearing frame (34, 134) has a centering device (70), and by the centering device, the mounting frame (11, 111) is guided to a predetermined fitting position when fitted into the bearing frame (34, 134). Claim 14 In claim 13, the centering device (70) has a fixing device (74), and by means of the fixing device, the mounting frame (11, 111) fitted into the bearing frame (34, 134) can be fixed to the bearing frame (34, 134), a mobile transport device. Claim 15 A method for introducing an installation frame into a shaft, wherein the installation frame (11, 111) is fitted into a bearing frame (34, 134) of a mobile transport device (10, 110), the installation frame (11, 111) is supported from above by the bearing frame (34, 134), and the bearing frame (34, 134) is supported by a base frame (16, 116) of the transport device (10, 110), and the method comprises at least the following steps: preventing the transport device (10, 110) from tilting by fixing the base frame (16, 116) and the transport device (10, 110) accordingly to a shaft opening (50, 150) outside the shaft (14, 114) by means of a fixing device (48) disposed on the base frame (16, 116). Step, and - introducing the mounting frame (11, 111) into the shaft (14, 14) through the shaft opening (50, 150) from outside the shaft (14, 114) by moving the bearing frame (34, 134), which is positioned to be movable in a horizontal direction with respect to the base frame (16, 116), into the shaft (14, 114).

Images