SE540198C2

SE540198C2 - A facade element lifting jig comprising a stop arrangement

Info

Publication number: SE540198C2
Application number: SE1550441A
Authority: SE
Inventors: Falk Henrik; Augustinson David; SANDSTRÖM Peter
Original assignee: Brunkeberg Systems Ab
Priority date: 2015-04-13
Filing date: 2015-04-13
Publication date: 2018-04-24
Also published as: SE1550441A1

Abstract

A stop arrangement (200) for a façade element lifting jig (1) comprising a casing (215) adapted to be attached to a support beam (11) of a façade lifting jig, an elongated plunger (213) slidable arranged in said casing (215) and a movable slide (220) for moving the plunger (213) in the casing (215), wherein- a first end of the plunger comprises a bolt portion (211) and- a second end of the plunger (213) comprises a plunger head (212) protruding from said plunger (213) in a direction perpendicular to a longitudinal axis (X) extending through the first end and second end of the plunger (213); whereinsaid casing (215) comprises a first opening (216) for the bolt portion (211) and a second opening (217) for the plunger head (212), wherein;the slide (220) is movable towards the plunger head (212) to engage and move the plunger head (220) from a first position (PI) in which the bolt portion (211) extends through the first opening (216) to a second position (P2) in which the bolt portion (211) is retracted into the casing (215).

Description

A façade element lifting jig comprising a stop arrangement Technical field The present disclosure relates to a façade element lifting jig comprising a stop arrangement.

Background art Multi-storey buildings can be constructed in a variety of ways. Common to all multistorey buildings, however, is a façade element. The façade element can be constructed to constitute an integral part of the building as a load bearing component or it may only serve as a weather protective layer. There may of course also be different combinations of façade elements with load bearing properties and weather protective layers. If the façade element only is used as a weather protective layer to seal the building then it is usually formed as a plate. In such a case the multi-storey building comprises a building structure onto which the plate formed façade elements are attached.

It is common that the façade elements arrive at the working site on pallets. These pallets are then off-loaded by a tower crane, a mobile crane, a site hoist or the like and lifted to the floor of the multi-storey building on which they are to be installed. This step of lifting and installing façade elements is one of the most time consuming tasks when a new multi-storey building is built. Thus, by reducing this time it is possible to reduce the overall time it takes to complete the whole multi-storey building. A further drawback of the conventional construction method is that handling and storage of the façade elements occupies space on the construction site. Moreover, unloading, transporting and installation of the façade panels demands a lot of manual labour Brunkeberg Systems AB has developed an efficient method for mounting façade elements which substantially reduces the time to unload, lift and mount façade elements on a building structure of a multi-storey building. According to the method, which is disclosed in WO2010070082, façade elements are transported on a conveyer directly from a delivery truck to a multi-storey building. The façade elements are then hoisted by an elevator unit, i.e. a crane, whilst inserted in slots of guiding rails mounted on the building structure, i.e. the vertical edges of the façade element will run in slots while hoisted. This will make the hoisting procedure less sensitive to weather conditions, such as wind, since the façade elements run steadily in the slots. The guiding-rails are mounted on the building structure all the way up to the floor that is beneath the floor to be installed, i.e. with this method the façade elements are mounted from the bottom and up. When the façade elements have reached the floor on which they are to be installed they are pushed in a horizontal direction towards the building and attached appropriately to the building.

In the method disclosed in WO20 10070082, the façade elements are moved from the conveyor to the guiding rails by an elevator unit provided with a gripping device for gripping the façade element. In operation, the elevator unit angles out such that the gripping device may grip the façade element. As the elevator unit then moves upwards the façade element is moved inwards towards the building and enters into the guiding rails.

When hoisting façade elements with gripping devices and elevator units it is important to ensure that the façade elements are properly inserted into the guiding rails prior to commencing hoisting. This is so since incorrect position of the façade element in the guiding rails may lead to damages on the façade element.

Thus, it is an object of the present invention to achieve a façade element lifting jig comprising an effective stop arrangement. A further object of the present invention is to achieve an improved lifting jig for façade elements which lifting jig is prevented from vertical movement prior to proper insertion of the façade element in the guiding rails on the building.

Summary of the disclosure According to a first aspect of the present disclosure at least one of these objects is achieved by a lifting jig 1 for lifting façade elements comprising: - a base frame 10 comprising parallel first and second vertical support beams 11, 12 to be movable received into two parallel guide profiles; and a lifting yoke 20 movable from a façade element lifting position (A) to a façade element engagement position (B); and a link arrangement 40 for pivotally coupling the lifting yoke 20 to the base frame 10, and a stop arrangement 200 comprising: - a casing 215 atached to a support beam 11, 12 and an elongated plunger 213 slidable arranged in said casing 215 and a movable slide 220 for moving the plunger 213, wherein; - a first end of the plunger 213 comprises a bolt portion 211 and - a second end of the plunger 213 comprises a plunger head 212 protruding from said plunger 213 in a direction perpendicular to a longitudinal axis (X) extending through the first end and second end of the plunger 213; wherein said casing 215 comprises a first opening 216 for the bolt portion 211 and a second opening 217 for the plunger head 212, wherein; - the slide 220 is coupled to the link arrangement 40, wherein the stop arrangement 200 is arranged such that, when the lifting yoke 20 is moved from a façade engagement (B) to a façade element lifting position (A), the slide 220 is moved towards the plunger head 212 to engage and move the plunger head 212 from a first position (P1) in which the bolt portion 211 extends through the first opening 216 of the casing 215 to a second position (P2) in which the bolt portion 211 is retracted into the casing 215.

The stop arrangement may advantageously be installed in a lifting jig having a base frame comprising parallel first and second vertical beams and lifting yoke coupled to the base frame by a linkage arrangement such that the lifting yoke is movable from a façade elements lifting position (A) to a façade engagement position (B).

The stop arrangement provides a simple and robust device for blocking the lifting jig from movement in vertical direction before the façade element and the lifting yoke are properly inserted in the guide rails. A particular advantage of the stop arrangement is that may be coupled directly to the link arrangement between yoke and frame of a lifting jig. This makes the stop arrangement reliable and operator independent, both to place the stop arrangement in a locked position and into a released position.

Further features and alternatives of the stop arrangement according to the present disclosure are disclosed in the detailed description and the attached claims.

Brief description of the drawings Figure 1: A schematically perspective drawing of a façade mounting system.

Figure 2a, 2b: Schematically perspective drawings of the lifting jig in engagement position and lifting position, respectively.

Figure 2c: Schematically side view drawings of an alternative link arrangement in the lifting jig.

Figure 3a, 3b: Schematically perspective drawings of front and back of the lifting yoke of the lifting jig according to an alternative.

Figure 4a-4d: Schematically side view drawings of the linkage arrange of the lifting jig in various positions.

Figure 5: A schematically perspective drawing of a lifting jig comprising a stop arrangement according to the disclosure.

Figure 6: A schematically cross-sectional view from above of a portion of the stop arrangement of figure 5.

Figure 7a, 7b: Schematically perspective drawings of a lifting jig comprising the stop arrangement according to the disclosure in a first position.

Figure 8: Schematically cross-sectional view from above of a portion of the stop arrangement in a first position.

Figure 9a, 9b: Schematically perspective drawings of a lifting jig comprising the stop arrangement according to the disclosure in a second position. Figure 10: Schematically cross-sectional view from above of a portion of the stop arrangement in a second position.

Detailed description of embodiments Figure 1 shows a building site of a multi-storey building 100 in which a mounting system 101 of the initially described art is employed. Guide profiles 102, also called wind posts, are erected around the building from the ground up to the various floors of the building. A conveyor 103 is located outside the guide profiles. The conveyor transports façade element 105 from a storage (not shown) to the building 100. A lifting jig 1 is guided in the guide profiles 102 and is arranged to be moved by a crane 104 up and down from the conveyor 103 to a floor of the building. In operation, the lifting jig 1 is lowered by the crane 104 to the level of the conveyor 103 to engages a façade element 105 hanging on the conveyor 103 and move it into the guide profiles 102 so that the façade element can be hoisted up to a floor of the building and be installed.

The lifting jig according to the disclosure will in the following be described in detail with reference to figure 2a which shows the lifting jig in an engagement position B for engaging a façade panel hanging on a conveyor. Figure 2b shows the lifting jig 1 in a lifting position A in which the lifting jig is in position between the support beams 11, 12 of the lifting jig. Returning to figure 2a, the lifting jig 1 comprises a base frame 10, a lifting yoke 20 on which a lifting rail 30 is supported and a linkage arrangement 40. The linkage arrangement 40 couples the base frame 10 with the lifting yoke 20 so that the lifting yoke 20 may be moved from the engagement position B of figure 2a to the lifting position A of figure 2b.

The base frame 10 comprises two vertical support beams 11 and 12 which are interconnected by two horizontal bars 13, 14 so that the base frame 10 is mechanically stable. The support beams 11 and 12 are hollow and of rectangular cross-section. The support beams may, however be of any cross-section and size under the condition that they fit movable into the guide profiles on the building. To facilitate movement of the lifting jig in the guide profiles, each support beam is provided with a set of wheels 15. The support beams 11, 12 further comprises tracks 16 for guiding the movement of the carriages 71, 72, 73, 74 in axial direction along each support beam. In figure 2a, the tracks 16 are through going grooves in the opposing facing inner surfaces of each support beam. However, according to an alternative, the tracks 16 could also be rails.

Figure 3a shows a detailed perspective front view of the lifting yoke 20. The yoke 20 comprises a horizontal base beam 22 to which a lifting rail 30 is attached. The lower edge of the lifting rail is hook-shaped, so that the lifting rail may engage a façade element. A lifting frame 21 extends vertically from the base beam 22, in opposite direction from the lifting rail 30. In operation the wire from a hoisting crane is attached to the top of the lifting frame 21 so that the entire lifting jig 1 is lifted in the lifting frame 21. The lifting frame 21 comprises two lifting beams 23, 24 which are attached to the base beam 22, on either side of the centre of the base beam 22. The two lifting beams 23, 24 are joined together over the center of the base beam 22 so that they form a triangular structure with the top point over the centre of the base beam. This allows for a simple and accurate centering of the lifting jig during hoisting. A further lifting beam 25 may be provided for strength. The lifting jig further comprises a linkage frame 90 which comprises vertical linkage rods 91, 92 which extends vertically from the base beam 22, on either side of the lifting beams 23, 24. As can been seen in figure 3a, the linkage rods are arranged parallel. A third linkage rod 93 extends horizontally between the parallel linkage rods 91, 92. The third, horizontal linkage rod 93 is rotationally attached into lockable torsion rod guides (not shown) in the upper ends of the parallel linkage rods 91, 92. The third horizontal linkage rod 93 provides for stability of the linkage frame 90. However, the third horizontal and rotational linkage rod 93 and the lockable torsion guides also allows for fine angular adjustments of the lifting yoke 20. Pivot pins 94 - 97 for pivotal attachments to the arms of the linkage arrangement are provided in the upper and lower ends of the vertical linkage rods 91, 92.

The lifting yoke 20 may also comprise contact elements 27 for abutting against the conveyor 103 when the lifting yoke is moved into a façade panel engagement position B. The contact elements 27 which may be L-shaped angular irons may be attached to the lifting beams such that they extend horizontally. In operation, the contact elements ensure that the lifting yoke and the conveyor are in the right position with regards to each other.

The lifting yoke also comprises a spring element 28, for example a gas spring which is biasing the lifting rail in direction of its hook. The spring element 28, see figure 3b, may be attached to the base beam 22 such that it actuates a force on the lifting rail 30.

The lifting yoke may also comprise a centring - locking device 200 for centring and locking the lifting rail 30 in engagement with a façade element lifting profile.

Returning to figure 2a. The linkage arrangement 40 comprises four identical links 41, 42, 43, 44. Each link comprises a pivot arm 51, 52, 53, 54; a push rod 61, 62, 63 64 and a carriage 71, 72, 73, 74. Each carriage is linearly movable in axial direction along one of the support beams, i.e. carriage 73 and 74 are movable along support beam 12 (see figure 2b) and carriage 71 and 72 (not shown) are movable along support beam 11. Each carrier 71 - 74 is movable along a track 16 which runs vertically on the support beams 11, 12. The track 16 may be a continuous track, or as shown in figure 2a, two separate tracks may be provided in each support beam 11, 12. In figure 2a, the tracks 16 are grooves and the carriages are slides, which slides in the tracks. However, according to an alternative shown in figure 2c, the tracks 16 may also be rails which are attached to the support beams. In this case the carriages are provided with rollers 17, which run in inside and along the rails. The carriages may comprise any suitable number of roller, for example 2, 3, 4 or 5 rollers.

To each carriage 71, 72, 73, 74 is one end of an arm 51, 52, 53, 54 pivotally attached so that the arm may swing. The other end of each arm is pivotally attached to the lifting yoke, i.e. to the pivot pins 94 - 97 on the linkage frame. The first end of a push rod 61, 62, 63, 64 is pivotally attached to the arm and the second end of the push rod is pivotally attached to the support beams 11, 12. As can be seen in figure 2a, the second end of each push rod is pivotally attached to a support beam in a position below the carriage 71, 72, 73, 74, i.e. below the movement path of the carriage. The rods 61, 62, 63, 64 thereby push the pivot arms outwards in an arc during the downward movement of the carriages. The extent of the movement of the lifting yoke depends on the length of the push rods 61, 62, 63, 64 and the length and shape of the pivot arms 51, 52, 53, 54 and may be determined by the skilled person for specific lifting circumstances. However, to facilitate the outwards movement of the arms it is preferred that the pivot arms are slightly angled outwards from support beams 11, 12. More preferably, the pivot arms are bent into an angle and the push rod is pivotally attached in the area of the bend.

Since the pivot arms are interconnected by the linkage rods 91, 92, 93 the yoke 20 pivots as one unit.

The function of the linkage arrangement of the lifting jig is following described with reference to figures 4a - 4d. For clarity the figures 4a - 4d shows only the side of the support beam 11 and the linkage arrangement 40 with an arm 51, a push rod 61 and a carriage 71. Also shown is lifting yoke 20 (not visible in figure 4a) and the lifting rail 30.

Figure 4a shows the lifting jig in the façade element lifting position A, immediately after the lifting jig has stopped after being lowered in the guide profiles on a building down to the conveyor (see figure 1). In this position, a stop block 107 in the guide profile blocks the base frame of the lifting jig from further movement downwards. When the base frame of the lifting jig is resting on the stop the lifting yoke 20, which is not blocked, forces the carriages 71 to move downwards along the tracks 16 in the vertical support beams 11,12. Thus, it is weight of the lifting yoke that forces the carriages to move downwards in the tracks 16. During the downward movement of the carriages, the push rods 61, which are pivotally connected to both the pivot arm and the carriage pushes the arms 51 outwards such that the arms move in an arc shape outwards and downwards (figures 4b and 4c). The movement continues until the carriages, reach a stop, or until the contact element on the lifting yoke abuts the conveyor. The lifting jig is then in the façade engagement position B (figure 4d). The return movement of the linkage arrangement follows exactly the reverse path of the downward movement and initiates when the hoisting crane pulls the lifting yoke upwards.

According to the disclosure, the lifting jig is provided with a stop arrangement for preventing premature vertical movement of the lifting jig in the guide profiles on the building.

The stop arrangement 200 will be described with reference to figure 5 and with reference to 6 which is a cross-sectional view along line A - A in figure 5.

Figure 5 shows a portion of a support beam 11 of a lifting jig 1 as described above. The lifting jig of figure 5 is in façade engagement position (B). The support beam 11 has a stop block 19 which rests on a stop block 107 in a guide profile 102 (not shown) of a façade mounting system 101. In figure 5, the guide profile 102 has been omitted to not obscure other parts of the lifting jig.

Figure 5 further shows a stop arrangement 200 for preventing premature vertical movement of the lifting jig in the guide rails on the building. The stop arrangement 200 comprises an elongated plunger 213 which has a bolt portion 211 in one end and a plunger head 212 in a second end. The purpose of the bolt portion 211 is to contact the underside of a stop block 107 in the guide profile of the façade system. The purpose of the plunger head 212 is to provide an abutment surface for a movable slide 220, which will be described below.

A longitudinal axis (X) extends between the first end and the second end of the plunger. The plunger head 212 protrudes from second end of the plunger 213 along a longitudinal axis (Y) perpendicular to the longitudinal axis (X). The plunger 213 is preferably manufactured in one single piece, for example in steel.

The stop arrangement 200 further comprises a casing 215 in which the plunger 213 is slidable arranged. The casing 215 forms together with the surface of the support beam 11 an inner space in which the plunger 213 is received. The casing 215 comprises a first opening 216 for the bolt portion 211 and a second opening 217 for the plunger head 212 (see figure 6). The first opening 216 is approximately of the same size as the bolt portion 211 of the plunger 213 in order to allow exit and entry of the bolt portion 211. The second opening 217 is larger than the plunger head 212 so that the plunger head can move in opening 217 from a first position P1 to a second position P2. The two positions P1 and P2 are limited by the limits of opening 217 in the casing 215. The opening 217 and the plunger head 212 are dimensioned such that the bolt portion 211 extends, i.e. protrudes, through the first opening 216 when the plunger head 212 is in position PI and such that the bolt portion 211 is retracted through the opening 216 into the casing 215 when the plunger head 212 is in position P2. The length by which the bolt portion 211 extends through the opening 216 depends on the distance to the stop block 107. For example, the bolt portion may extend 3 cm through the opening 216.

A spring means 218, such as a coil spring, is provided between the second end of the plunger and the casing 215 to force the plunger in longitudinal direction (X) towards the first opening 216 so that the bolt portion 211 extends out through the opening 216 and so that the plunger head 212 is in position P1.

The casing 215 is preferably attached to a support beam 11 of rectangular cross-section of the lifting jig such that the bolt portion 211 extends parallel with one side of the support beam 11 and the plunger head extends parallel with an adjacent second side of the support beam 11.

In figure 5 and 6 the plunger head 212 is in position PI and the bolt portion 211 extends through opening 216. In this position, the bolt 211 abuts the stop 107 on the guiding rail from below, i.e. the side of stop 107 which is opposite the stop block 19 on the support beam 11. As long as bolt portion 211 remains in this extended position, the lifting jig can not be raised in the guiding rails on the building. To place the bolt in an appropriate position for abutting against the stop 107, it is important to attach the casing 215 below the stop block 19.

The stop arrangement 200 further comprises a slide 220 which is movable towards the plunger head 212. The slide 220 has a shape and dimension such that it may engage the plunger head 212 and move it from the first position PI to the second position P2. Typically, the slide 220 is a rectangular steel piece having a front 221 which is directed towards the plunger head 213. To engage the plunger head 212, the slide 220 is movable along the surface of the support beam 11 towards the plunger head 212 in a direction which is perpendicular to a plane which is defined by the longitudinal axis (X) of the plunger and the longitudinal axis (Y) of the plunger head. As may be seen in figure 5, the slide 220 is movable towards and away from the plunger head 212 along an axis (Z), which is perpendicular to the plane between the axis (X) and axis (Y).

In operation, the slide 220 is arranged to enter between the surface of the support beam 11 and the plunger head 212 to move the plunger head 212 from the first position PI towards the second position P2. The plunger head 212 may therefore be designed such that there is a spacing between the plunger head 212 and surface of the support beam 11 (as shown in figure 6). To enter into the spacing between the plunger head 212 and the support beam 11, the front 221 of the slide 220 is preferably of narrowing cross-section. As shown in figure 5, the front 221 of the slide 220 may be chamfered so that the front 221 of the slide 220 forms an edge. The height (or thickness) 222 of the slide is dimensioned so the plunger head 212 is moved from position PI to position P2. The plunger head 212 may be provided with an abutment portion 214 which is directed towards the surface of the support beam 11. Hence, the abutment portion 214 is directed parallel to the longitudinal axis X towards the first end of the plunger 213.

The abutment portion 214 may be flat which is the case when the plunger head is of rectangular cross-section. However, to facilitate contact with the slide 220 and movement from position PI to P2 the abutment surface 214 may be of narrowing crosssection. For example, as shown in figure 7a and 9a, the abutment portion 214 may have a chamfered surface which faces the slide 220. It is also possible that the abutment portion is cylindrical (not shwn).

When the plunger head 213 comprises an abutment portion 214 of narrowing crosssection, the plunger head 213 may be designed such that the abutment portion 214 contacts the surface of the support beam 11, when the plunger head is in position PI. In this case it is preferred that the abutment portion 214 and the front 221 of the slide are of narrowing cross-sections, more preferred chamfered.

The slide 220 may comprise an arm 219 which connects the slide 220 to a carriage 71, on the support beam 11. Therefore, when the carriage 71 moves axially along the support beam 11, during transition of the yoke of the lifting jig, the carriage 71 moves the slide 220 along the surface of the support beam 11.

The transition of the stop arrangement 200 from a blocking position PI to the unblocked release position P2 will in the following be described with reference to figures 7a, 7b and 8 (showing the blocking position) and with reference to figures 9a, 9b and 10 (showing the release position).

In figures 7a, 7b and 8 the lifting jig is in façade engagement position (B). In this position the slide 220 is in a position below the plunger head 212 and is thus not in engagement with the plunger head 212. The spring 218 forces the plunger 213 along the longitudinal axis so that the bolt portion 211 extends through opening 216.

As described, after the lifting jig has engaged a façade element, the lifting yoke is retracted to the façade lifting position (A) by the link arrangement. During this transition the carriages of the link arrangement which couples the lifting yoke to the base frame of the lifting jig move vertically upwards on the support beams.

When the yoke (not shown) is retracted, the slide 220 which is connected to the carriage 71 on the support beam 11 by arm 219, moves vertically along the surface of the support beam 11 towards the plunger head 212, as indicated by arrow 230, and comes into engagement with the plunger head 212 (see figure 9a). The chamfered edge of the front 221 of the slide 220 enters between the plunger head 212 and the surface of support beam 11 and forces thereby the plunger head 212 to move from position P1 towards position P2.

Figure 9a, 9b and 10 shows the stop arrangement 200 in a position where the lifting yoke has been retracted into the lifting position (A). The lifting yoke (not shown) is thereby retracted between the support beams of the lifting jig and the carriage 71 has reached its end position on the support beam 11. The slide 220 has moved along the support beam 11 and is positioned between the abutment portion 214 of the plunger head 212 and the support beam 11. The slide 220 has thereby pushed the plunger head 212 all the way into position P2 and the bolt 211 is fully retracted into casing 215 (figure 9b). The lifting jig is now free to be hoisted along the guiding rails on the building.

When the lifting jig is moved from a lifting position (A) to a façade engagement position (B), the stop arrangement 200 moves in opposite direction. Thus, the carriage 7 1 moves the slide 220 in vertical direction on the support beam 1 1 away from the plunger head 212. As the slide releases the plunger head 212, the plunger 213 is forced by spring 218 towards the opening 216 and the bolt portion 11 is extended to block the lifting jig against the stop block 107 in the guide profile.

Claims

1. A lifting jig (1) for lifting façade elements comprising: - a base frame (10) comprising parallel first and second vertical support beams (11, 12) to be movable received into two parallel guide profiles; and a lifting yoke (20) movable from a façade element lifting position (A) to a façade element engagement position (B); and a link arrangement (40) for pivotally coupling the lifting yoke (20) to the base frame (10), characterized in a stop arrangement (200) comprising: - a casing (215) attached to a support beam (11, 12) and an elongated plunger (213) slidable arranged in said casing (215) and a movable slide (220) for moving the plunger (213), wherein; - a first end of the plunger (213) comprises a bolt portion (211) and - a second end of the plunger (213) comprises a plunger head (212) protruding from said plunger (213) in a direction perpendicular to a longitudinal axis (X) extending through the first end and second end of the plunger (213); wherein said casing (215) comprises a first opening (216) for the bolt portion (211) and a second opening (217) for the plunger head (212), wherein; - the slide (220) is coupled to the link arrangement (40), wherein the stop arrangement (200) is arranged such that, when the lifting yoke (20) is moved from a façade engagement (B) to a façade element lifting position (A), the slide (220) is moved towards the plunger head (212) to engage and move the plunger head (212) from a first position (PI) in which the bolt portion (211) extends through the first opening (216) of the casing (215) to a second position (P2) in which the bolt portion (211) is retracted into the casing (215).

2. The lifting jig (1) according to claim 1, wherein the stop arrangement (200) comprises a spring means (218) which is arranged between the second end of the plunger (213) and the casing (215) to bias the plunger (213) in direction towards the first opening (216).

3. The lifting jig (1) according to claim 1 or 2, wherein the slide (220) comprises an arm (219) for attachment to a movable carriage (71) of the lifting jig (1).

4. The lifting jig (1) according to anyone of claims 1 - 3, wherein the slide (220) is movable towards the plunger head (212) of the plunger (213) in a direction perpendicular to a plane defined by the longitudinal axis (X) of the plunger and the protruding plunger head (212).

5. The lifting jig (1) according to anyone of claims 1 - 4, wherein the slide (220) is movable along an axis (Z), which is perpendicular to a plane defined by the longitudinal axis (X) of the plunger (213) and the protruding plunger head (212).

6. The lifting jig (1) according to anyone of claims 1 - 5, wherein at least a front portion of the slide (220) is of narrowing cross-section.

7. The lifting jig (1) according to claim 6, wherein at least a front portion of the slide (220) is chamfered.

8. The lifting jig (1) according to anyone of claims 1 - 7, wherein the plunger head (212) has an abutment section (214) for engagement with the slide (220).

9. The lifting jig (1) according to claim 8, wherein the abutment section of the plunger head (212) is chamfered or has a cylindrical surface for engagement with the slide (220).

10. The lifting jig (1) according to anyone of claims 1 - 9, wherein the slide (220) is arranged to slide on the first vertical support beam (11).

11. The lifting jig (1) according to anyone of claims 1 - 10, wherein the slide (220) is arranged to enter between the plunger head (212) and the support beam (11).

12. The lifting jig (1) according to anyone of claims 1 - 11, wherein the first support beam (11) comprises a stop block (19) for abutting against a stop block (107) in a guide profile, wherein the casing (215) of the stop arrangement (200) is arranged underneath the stop block (19).