trimmer beam assembly and elevator system

Abstract

Trimmer bar arrangement, including: two crossbeam elements (11) which extend parallel to each other in a first direction (X) and are spaced apart from each other; a plurality of connecting elements (13) which are connected at intervals in the first direction (X) between the two crossbeam elements (11); and two mounting frame modules, wherein one of the two mounting frame modules is attached to one end of the two crossbeam elements (11) and the other of the two mounting frame modules is attached to the other end of the two crossbeam elements (11) in order to attach the two crossbeam elements (11) to a device, wherein the multiple connecting elements (13) between the two crossbeam elements (11) are connected in a detachable manner, and at least one of the two mounting frame modules is detachably connected to the two crossbeam elements (11).

Description

TECHNICAL FIELD

[0001] The present invention relates to a trimmer beam arrangement and a lifting system comprising the trimmer beam arrangement. BACKGROUND

[0002] In some elevator systems with multiple shafts, there is no partition between two adjacent and parallel shafts. To separate such shafts and / or install a guide rail for the elevator car between them, a support bracket must be installed. This bracket includes a trimmer beam, both ends of which are attached to the opposite walls to provide support, similar to a horizontal bar. The support bracket can also function as a partition. Furthermore, the elevator car guide rail can be mounted to the trimmer beam.

[0003] The existing compensating beams are heavy and mostly welded constructions. They are difficult to handle on site and incur high costs. There is a need for a compensating beam that is easy to install, lightweight, and inexpensive. SUMMARY

[0004] At least some embodiments of the present invention relate to a trimmer beam arrangement comprising: two crossbeam elements, several connecting elements, and two mounting frame modules. The two crossbeam elements are parallel to each other in a first direction and are spaced apart from each other. The several connecting elements are connected between the two crossbeam elements at intervals in the first direction. One of the two mounting frame modules is attached to one end of the two crossbeam elements, and the other of the two mounting frame modules is attached to the other end of the two crossbeam elements to secure the two crossbeam elements to a device. The several connecting elements are detachably connected between the two crossbeam elements, and at least one of the two mounting frame modules is detachably connected to the two crossbeam elements.

[0005] For example, in some embodiments of the present disclosure, the multiple connecting elements between the two crossbeam elements are connected by bolts, and at least one of the two mounting frame modules is connected to the two crossbeam elements by bolts.

[0006] For example, in some embodiments, a cross-section of the crossbeam element has a C-shaped profile in the first direction, and two C-shaped profiles of the two crossbeam elements open away from each other in a second direction perpendicular to the first direction.

[0007] In some embodiments, for example, the C-shaped profile is an axially symmetric shape, and the crossbeam element comprises: a first crossbeam section located in the center of the C-shaped profile; a second crossbeam section and a third crossbeam section, each extending perpendicularly from two ends of the first crossbeam section; and a fourth crossbeam section and a fifth crossbeam section, each extending perpendicularly to an axis of symmetry of the C-shaped profile from the ends of the second and third crossbeam sections away from the first crossbeam section.

[0008] For example, in some embodiments, the crossbeam element further comprises a plurality of fastening holes. The plurality of fastening holes is arranged at intervals of each other in the first direction in the second and third crossbeam sections.

[0009] For example, in some embodiments of the present disclosure, a cross-section of the connecting element has a hat-shaped profile in a third direction, the third direction being perpendicular to the first and second directions. The hat-shaped profile is an axially symmetric shape, and the connecting element comprises: a first connecting section located in the center of the hat-shaped profile; a second connecting section and a third connecting section, each extending perpendicularly from two ends of the first connecting section; a fourth connecting section and a fifth connecting section, each extending perpendicularly from an axis of symmetry of the hat-shaped profile away from the ends of the second and third connecting sections, respectively, and away from the first crossbeam section.The first connecting section abuts and is attached to the first crossbeam section of one of the two crossbeam elements. The fourth and fifth connecting sections each abut and are attached to the first crossbeam section of the other of the two crossbeam elements.

[0010] For example, in some embodiments, the hat-shaped profiles of two adjacent connecting elements open in opposite directions under the multiple connecting elements.

[0011] In some embodiments, for example, the first connecting section of the connecting element is attached to one crossbeam element of the two crossbeam elements by means of a threaded fastening element, and the fourth connecting section and the fifth connecting section of the connecting element are attached to the other crossbeam element of the two crossbeam elements by means of threaded fastening elements.

[0012] For example, in some embodiments, each of the two mounting frame modules comprises two fastening elements, wherein the two fastening elements are each attached to the two crossbeam elements on two sides of the two crossbeam elements in a third direction. The third direction is perpendicular to the first direction and to the second direction.

[0013] In some embodiments, the trimmer bar assembly further comprises, for example, a first fastening screw and a second fastening screw. The fastening element comprises a first plate-shaped body section and a second plate-shaped fastening section. The first plate-shaped body section extends parallel to the second crossbar section and the third crossbar section. The second plate-shaped fastening section extends perpendicularly from the first plate-shaped body section. The fastening element is attached to the device via the second plate-shaped fastening section.The first fastening screw passes through the first plate-shaped body sections of both fasteners in the mounting frame module and through fastening holes in the second and third crossbeam sections of one of the two crossbeam elements, to fasten the two fasteners in the third direction to both sides of that one crossbeam element. The second fastening screw passes through the first plate-shaped body sections of both fasteners in the mounting frame module and through fastening holes in the second and third crossbeam sections of the other crossbeam element of the two crossbeam elements, to fasten the two fasteners in the third direction to both sides of the other crossbeam element.

[0014] For example, in some embodiments the first plate-shaped body section has a trapezoidal shape, and the second plate-shaped fastening section extends from a long parallel edge of the trapezoidal shape.

[0015] For example, in some embodiments, the trimmer bar assembly further comprises: one or more mounting frames, a third mounting screw, and a fourth mounting screw for attaching an external bracket. The third mounting screw passes through a mounting hole in the mounting frame and a mounting hole in the second or third crossbeam section of one of the two crossbeam elements to fasten the mounting frame to the crossbeam element. The fourth mounting screw passes through another mounting hole in the mounting frame and a mounting hole in the second or third crossbeam section of the other crossbeam element of the two crossbeam elements to fasten the mounting frame to the other crossbeam element.

[0016] At least one embodiment further provides an elevator system comprising: a first elevator shaft; a second elevator shaft; and the aforementioned trimmer beam assembly, wherein the trimmer beam assembly is arranged between the first elevator shaft and the second elevator shaft to subdivide the first elevator shaft and the second elevator shaft. The first direction is perpendicular to an extension direction of the first elevator shaft and the second elevator shaft, and the fixing is a wall. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 shows a perspective view of a trimmer bar arrangement according to an embodiment of the present disclosure; Fig. Figure 2 shows a partially exploded perspective view of a trimmer bar arrangement according to an embodiment of the present disclosure; Fig. 3 shows a top view of a trimmer bar arrangement according to an embodiment of the present disclosure; Fig. 4 shows a further top view of the trimmer bar arrangement according to an embodiment of the present disclosure in which the mounting frame module is omitted; Fig. Figure 5 shows an enlarged top view of box A in Fig. 4; Fig. Figure 6 shows a further top view of a trimmer bar assembly according to an embodiment of the present disclosure, seen from a left-right direction. Fig. 4, omitting the mounting frame module; Fig. Figure 7 shows a further top view of a trimmer bar arrangement according to an embodiment of the present disclosure, seen from the left-right direction. Fig. 3. DETAILED DESCRIPTION

[0017] The following describes in detail a trimmer bar arrangement according to one embodiment with reference to the drawings.

[0018] Fig. Figure 1 shows a perspective view of a trimmer bar arrangement according to an embodiment of the present disclosure, Fig. Figure 2 shows a partially exploded perspective view of a trimmer bar arrangement according to an embodiment of the present disclosure and Fig. Figure 3 shows a top view of a trimmer bar arrangement according to one embodiment of the present disclosure. As shown in the Fig. As shown in Figures 1-3, the trimmer beam assembly comprises two crossbeam elements 11, a plurality of connecting elements 13, two mounting frame modules, and an installation mounting frame 14. Two crossbeam elements 11 extend parallel to each other in a first direction X and are also spaced apart from each other in a second direction Y perpendicular to the first direction X. The multiple connecting elements 13 are connected between the two crossbeam elements 11 at intervals in the second direction Y, such that the multiple connecting elements 13 and the two crossbeam elements 11 form a major part of the trimmer beam assembly. Two mounting frame modules are each attached to opposite ends of the two crossbeam elements 11 to secure the two crossbeam elements 11 to a fixture. Each of the mounting frame modules includes two mounting elements 12. The installation mounting frame 14 is used to connect an external bracket.

[0019] In this embodiment, the fastening device can be a wall. Some elevator systems comprise multiple elevator shafts, and there is no partition wall between any two adjacent elevator shafts within the multiple elevator shafts. That is, the two elevator shafts are connected. To separate such two elevator shafts and / or to install a guide rail for guiding an elevator car between the two elevator shafts, a supporting bracket must be provided between the two elevator shafts, the supporting bracket being able to include the trimmer beam assembly according to the present disclosure. The fastening frame module of the trimmer beam assembly serves to fasten the two crossbeam elements to the opposing common walls of the two elevator shafts.The trimmer beam assembly is supported between two opposing walls by the mounting frame module, for example, like a horizontal bar. Therefore, the trimmer beam assembly can divide the two elevator shafts. Furthermore, the trimmer beam assembly can also be connected to a guide rail as an external support to reinforce the guide rail.

[0020] Fig. 4 shows a further top view of a trimmer bar arrangement according to an embodiment of the present disclosure in which the mounting frame module is omitted; Fig. Figure 5 shows an enlarged top view of box A in Fig. 4; Fig. Figure 6 shows a further top view of a trimmer bar arrangement according to an embodiment of the present disclosure, seen from a left-right direction. Fig. 4, where the mounting frame module is omitted. As in the Fig. As shown in Figures 1-6, several connecting elements 13 are detachably connected between two crossbeam elements 11, for example by bolts, and two mounting frame modules are detachably connected to the two crossbeam elements 11, for example by bolts. Therefore, the trimmer beam assembly is convenient for on-site assembly, reducing installation time and costs. The crossbeam element 11 can be cut to the required length according to on-site requirements, and then the mounting frame module can be installed at least at one end to complete the assembly of the trimmer beam assembly.

[0021] As in the Fig. As shown in Figures 1 to 6, a cross-section of the crossbeam 11 has a C-shaped profile in the first direction X, and the C-shaped profiles of the two crossbeams 11 open away from each other in the second direction Y. As shown in Fig. As shown in Figure 6, the crossbeam element 11 comprises a first crossbeam section 111, a second crossbeam section 112, a third crossbeam section 113, a fourth crossbeam section 114, and a fifth crossbeam section 115, which together form the C-shaped profile. The C-shaped profile can have an axially symmetrical shape. Such a C-shaped profile allows the trimmer beam assembly to have low weight and high stiffness. The first crossbeam section 111 is located in the center of the C-shaped profile. The second crossbeam section 112 and the third crossbeam section 113 each extend perpendicularly to the first crossbeam section 111 from two ends of the first crossbeam section 111.The fourth crossbeam section 114 and the fifth crossbeam section 115 each extend from the ends of the second crossbeam section 112 and the third crossbeam section 113 away from the first crossbeam section 111 perpendicular to the corresponding crossbeam sections and in the direction of an axis of symmetry of the C-shaped profile. Additionally, rounded corners may be provided at the connection points between adjacent crossbeam sections. As shown in the... Fig. As shown in Figures 1 to 5, multiple mounting holes 114 are provided in the second crossbeam section 112 and the third crossbeam section 113. The multiple mounting holes 114 in the second crossbeam section 112 are spaced at intervals in the first direction X, and the multiple mounting holes 114 in the third crossbeam section 113 are spaced at intervals in the first direction X. As described in detail below, the multiple mounting holes 114 can be used to attach the installation mounting frame 14 to further secure a guide rail. Because multiple mounting holes 114 are spaced in the first direction X, the mounting position of the installation mounting frame 14 can be selected as needed. Furthermore, the multiple mounting holes 114 can also be used to attach the mounting frame module.

[0022] In other embodiments, the crossbeam element 11 can have a profile with different shapes in the first direction X, for example, a rectangular frame profile. Additionally, mounting holes for attaching installation mounting frames and the like can be provided at suitable positions on the profile.

[0023] As in the Fig. As shown in Figures 2 to 4, several connecting elements 13 are connected between two crossbeam elements 11. The multiple connecting elements 13 are arranged at intervals in the first direction X. The cross-section of the connecting element 13 in a third direction Z has a hat-shaped profile, wherein the third direction Z is perpendicular to the first direction X and to the second direction Y, and an opening of the hat-shaped profile is oriented in the second direction Y. The hat-shaped profile can be axially symmetric. As shown in the Fig. 3 and Fig. As shown in Figure 4, in this embodiment the openings of the hat-shaped profiles of two adjacent connecting elements 13 are oriented in opposite directions Y in order to make the force distribution of the trimmer beam arrangement more uniform, but the present disclosure is not limited to this.

[0024] As in Fig. As shown in Figure 5, the connecting element 13 comprises a first connecting section 131, a second connecting section 132, a third connecting section 133, a fourth connecting section 134, and a fifth connecting section 135. The first connecting section 131, the second connecting section 132, and the third connecting section 133 form a hat body section of the hat-shaped profile, and the fourth connecting section 134 and the fifth connecting section 135 form an edge section of the hat-shaped profile. In particular, the first connecting section 131 is located in the center of the hat-shaped profile. The second connecting section 132 and the third connecting section 133 each extend perpendicularly to the first connecting section 131 from two ends of the first connecting section 131.The fourth connecting section 134 and the fifth connecting section 135 each extend from the ends of the second connecting section 132 and the third connecting section 133 away from the first connecting section 131, perpendicular to the respective connecting sections and away from the axis of symmetry of the C-shaped profile. Additionally, a rounded corner may be provided at the connection between adjacent connecting sections. The first connecting section 131 is abutted against and attached to the first crossbeam section 111 of one of the two crossbeam elements 11, and the fourth connecting section 134 and the fifth connecting section 135 are each adjacent to and attached to the first crossbeam section 111 of the other crossbeam element 11 of the two crossbeam elements 11. Therefore, the multiple connecting elements 13 can connect the two crossbeam elements 11 to each other.The shape of the connecting element 13 and the crossbeam element 11, as well as the connection configuration, enable the trimmer beam assembly to exhibit greater rigidity at a lower weight. Since less material is required, the cost of the trimmer beam assembly is also reduced. Furthermore, such a trimmer beam assembly can be easily installed on-site if needed. For example, the two crossbeam elements 11 are first cut to the required length, then a suitable number of connecting elements 13 are joined to the two crossbeam elements 11, and finally, the mounting frame module is attached to the two crossbeam elements 11 to complete the assembly of the trimmer beam assembly.Since the crossbeam element 11 can be cut to size on site as required, it is not necessary to prepare multiple trimmer beam arrangements of different sizes and models, thus saving costs.

[0025] Furthermore, in this embodiment, the first connecting section 131 of the connecting element 13 is attached to one crossbeam element 11 by means of a threaded fastening element, and the fourth connecting section 134 and the fifth connecting section 135 of the connecting element 13 are attached to the other crossbeam element 11 by means of threaded fastening elements. Therefore, assembly can be easily carried out without welding, which reduces assembly time and effort.

[0026] In other embodiments, the connecting element 13 can have a profile with other shapes in the third direction Z, for example a rectangular frame profile.

[0027] With reference to the Fig. 1 to 3, the mounting frame module comprises two fastening elements 12, which are attached to the two crossbeam elements 11 on two sides of the two crossbeam elements 11 in the third direction Z by a first fastening screw 151 and a second fastening screw 152. As in Fig. As shown in Figure 2, the fastening element 12 comprises a first plate-shaped body section 121 and a second plate-shaped fastening section 122. The first plate-shaped body section 121 extends parallel to the second crossbeam section 112 and the third crossbeam section 113. The second plate-shaped fastening section 122 extends perpendicularly to the first plate-shaped body section 121 from the second plate-shaped body section 121. The first plate-shaped body section 121 may have a trapezoidal shape, and the second plate-shaped fastening section 122 extends from a long parallel edge of the trapezoidal shape. The second plate-shaped fastening section 122 may be rectangular. The fastening element 12 is attached to a fixing device, for example, a wall, by means of the second plate-shaped fastening section 122.In particular, the second plate-shaped fastening section 122 can be attached to a fastening device by means of an expanding screw 17.

[0028] Fig. Figure 7 shows a further top view of a trimmer bar arrangement according to an embodiment of the present disclosure, seen from a left-right direction. Fig. 3. As in the Fig. As shown in Figures 1-3 and 7, the first fastening screw 151 passes through the first plate-shaped body sections 121 of two fastening elements 12 in the fastening frame module and the fastening holes 114 in the second crossbeam section 112 and in the third crossbeam section 113 of a first fastening element 12, wherein the first fastening screws 151 fasten the first plate-shaped body sections 121 of the two fastening elements 12 in the fastening frame module and the fastening holes 114 in the second crossbeam section 112 and in the third crossbeam section 113 of a crossbeam element of the two crossbeam elements 11 in order to fasten the two fastening elements 12 in the third direction Z to the two sides of the crossbeam element 11.The second fastening screw 152 passes through the first plate-shaped body sections 121 of the two fastening elements 12 in the mounting frame module and the fastening holes 114 in the second crossbeam section 112 and in the third crossbeam section 113 of the other crossbeam element 11 of the two crossbeam elements 11, in order to fasten the two fastening elements 12 to the two sides of the other crossbeam element 11 in the third direction Z. The two fastening elements 12 of the mounting frame module can be mounted more stably and conveniently to the trimmer beam assembly by means of the long first fastening screw 151 and the long second fastening screw 152.

[0029] Additionally, still referring to the Fig.In 1-3, one or more installation mounting frames 14 are attached to two crossbeam assemblies by means of third mounting screws 161 and fourth mounting screws 162 for mounting on the trimmer beam assembly. Specifically, the third mounting screw 161 passes through the mounting hole in the mounting frame 14 and the mounting hole 114 in the second crossbeam section 112 or the third crossbeam section 113 of one of the two crossbeam elements 11 to fasten the mounting frame 14 to one crossbeam element 11. The fourth mounting screw 162 passes through another mounting hole in the mounting frame 14 and the mounting hole 114 in the second crossbeam section 112 or the third crossbeam section 113 of the other crossbeam 11 of the two crossbeams 11 to fasten the mounting frame 14 to the other crossbeam 11.Therefore, the trimmer bar arrangement of the embodiment of the present disclosure can be assembled without welding.

[0030] In one example, the distance L1 between the fourth crossbeam section 114 and the fifth crossbeam section 115 of the two crossbeam elements 11 in the second direction Y can be in the range of 100 to 200 mm, preferably in the range of 130 to 150 mm, for example 140 mm. The distance between the first crossbeam sections 111 of the two crossbeam elements 11 in the second direction Y can be in the range of 40 to 80 mm, preferably in the range of 50 to 70 mm, for example 60 mm. The distance between the second crossbeam section 112 and the third crossbeam section 113 of each crossbeam element 11 in the third direction Z can be in the range of 80 to 150 mm, preferably in the range of 90 to 130 mm, for example 120 mm.In one example, where the weight of a cross-sectional area of ​​1200 (L1) × 100 (L3) (mm) and a length of 2.5 m is the weight of the trimmer bar assembly according to the embodiment of the present disclosure, the weight is only 30 kg, which is 73% less weight than a conventional trimmer bar of the same size and material, 63% less cost and 10% less assembly time.

[0031] The scope of the present disclosure is not defined by the embodiments described above, but by the attached claims and their equivalents.

Claims

[1] Trimmer bar assembly comprising: two crossbeam elements (11) which extend parallel to each other in a first direction (X) and are spaced apart from each other; a plurality of connecting elements (13) which are connected at intervals in the first direction (X) between the two crossbeam elements (11); and two mounting frame modules, wherein one of the two mounting frame modules is attached to one end of the two crossbeam elements (11) and the other of the two mounting frame modules is attached to the other end of the two crossbeam elements (11) in order to attach the two crossbeam elements (11) to a device, wherein the multiple connecting elements (13) between the two crossbeam elements (11) are connected in a detachable manner, and at least one of the two mounting frame modules is detachably connected to the two crossbeam elements (11). [2] Trimmer beam arrangement according to claim 1, wherein the multiple connecting elements (13) between the two crossbeam elements (11) are connected by bolts and the at least one of the two mounting frame modules is connected to the two crossbeam elements (11) by bolts. [3] Trimmer beam arrangement according to claim 1, wherein a cross-section of the crossbeam element (11) has a C-shaped profile in the first direction and the C-shaped profiles of the two crossbeam elements (11) are open away from each other in a second direction (Y) perpendicular to the first direction (X). [4] Trimmer bar arrangement according to claim 3, wherein the C-shaped profile is an axisymmetric shape and comprises the crossbar element (11): a first crossbeam section (111) located in the middle of the C-shaped profile; a second crossbeam section (112) and a third crossbeam section (113), each extending perpendicularly from the two ends of the first crossbeam section (111); and a fourth crossbeam section (114) and a fifth crossbeam section (115), each extending perpendicular to an axis of symmetry of the C-shaped profile from the ends of the second crossbeam section (112) and the third crossbeam section (113) away from the first crossbeam section (111). [5] Trimmer beam arrangement according to claim 4, wherein the crossbeam element (11) further comprises a plurality of fastening holes arranged at intervals from each other in the first direction (X) in the second crossbeam section (112) and the third crossbeam section (113). [6] Trimmer bar arrangement according to claim 4, wherein a cross-section of the connecting element (13) has a hat-shaped profile in a third direction (Z), wherein the third direction (Z) is perpendicular to the first direction (X) and to the second direction (Y), the hat-shaped profile has an axially symmetrical form and includes the connecting element (13): a first connecting section (131) located in the middle of the hat-shaped profile; a second connecting section (132) and a third connecting section (133) each extending perpendicularly from two ends of the first connecting section (131); a fourth connecting section (134) and a fifth connecting section (135), which extend perpendicularly from an axis of symmetry of the hat-shaped profile from the ends of the second connecting section (132) and the third connecting section (133) away from the first connecting section (131), wherein the first connecting section (13) abuts and is attached to the first crossbeam section (111) of one of the two crossbeam elements (11), and the fourth connecting section (134) and the fifth connecting section (135) each lie against and are attached to the first crossbeam section (111) of the other crossbeam element (11) of the two crossbeam elements. [7] Trimmer bar arrangement according to claim 6, wherein the hat-shaped profiles of two adjacent connecting elements (13) under the multiple connecting elements (13) open in the second direction (Y) opposite to each other. [8] Trimmer bar arrangement according to claim 6, wherein the first connecting section (131) of the connecting element (13) is attached to one of the two crossbeam elements (11) with a threaded fastening element, and the fourth connecting section (134) and the fifth connecting section (135) of the connecting element (13) are attached to the other crossbeam element (11) of the two crossbeam elements (11) by a threaded fastening element. [9] Trimmer bar arrangement according to claim 5, wherein each of the two mounting frame modules comprises two fastening elements (12), the two fastening elements (12) being attached to the two crossbeam elements (11) on two sides of the two crossbeam elements (11) in the third direction (Z) and the third direction (Z) being perpendicular to the first direction (X) and to the second direction (Y). [10] Trimmer bar arrangement according to claim 9, further comprising a first fastening screw (151) and a second fastening screw (152), wherein the fastening element (12) comprises a first plate-shaped body section (121) and a second plate-shaped fastening section (122), wherein the first plate-shaped body section (121) extends parallel to the second crossbeam section (112) and to the third crossbeam section (113), and wherein the second plate-shaped fastening section (122) extends perpendicularly from the first plate-shaped body section (121), and wherein the fastening element (12) is attached to a device via the second plate-shaped fastening section (122), wherein the first fastening screw (151) passes through the first plate-shaped body sections (121) of the two fastening elements (12) in the fastening frame module and through fastening holes in the second crossbeam section (112) and in the third crossbeam section (113) of one of the two crossbeam elements (11) in order to fasten the two fastening elements (12) in the third direction (Z) to the two sides of the crossbeam element (11), the second fastening screw (152) passes through first plate-shaped body sections (121) of the two fastening elements (12) in the fastening frame module and fastening holes in the second crossbeam section (112) and in the third crossbeam section (113) of the other crossbeam element (11) of the two crossbeam elements (11) in order to fasten the two fastening elements (12) to the two sides of the other crossbeam element (11) in the third direction (Z). [11] Trimmer bar arrangement according to claim 10, wherein the first plate-shaped body section (121) has a trapezoidal shape and the second plate-shaped fastening section (122) extends from a long parallel edge of the trapezoidal shape. [12] Trimmer bar arrangement according to claim 4, further comprising one or more installation mounting frames (14), a third mounting screw (161) and a fourth mounting screw (162) for connecting an external bracket, wherein the third fastening screw (161) passes through a fastening hole in the installation mounting frame (14) and a fastening hole in the second crossbeam section (112) or in the third crossbeam section (113) of a crossbeam element (11) of the two crossbeam elements (11) in order to fasten the installation mounting frame (14) to the crossbeam element (112), wherein the fourth fastening screw (162) passes through a further fastening hole in the installation mounting frame (14) and a fastening hole in the second crossbeam section (112) or in the third crossbeam section (113) of the other crossbeam element (11) of the two crossbeam elements (11) in order to fasten the installation mounting frame (14) to the other crossbeam element (11). [13] Lifting system, comprising: a first elevator shaft; a second elevator shaft; and the trimmer bar arrangement according to any one of claims 1 to 12, wherein the trimmer beam assembly is arranged between the first elevator shaft and the second elevator shaft in order to separate the first elevator shaft and the second elevator shaft, the first direction (X) runs perpendicular to an extension direction of the first elevator shaft and the second elevator shaft, and the fixing is a wall.

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